空调遥控器下盖注塑模具设计【原创】3D【全套含有CAD图纸三维建模】
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Development situation and development trend of die1 Die IntroductionMold is the basis for industrial production technology and equipment, consensus has been achieved. Mould production technology of high and low, Become an important symbol of national product manufacturing levels, to a large extent determine the quality of product, efficiency, and new product development capability, determine a countrys international competitiveness in the manufacturing sector. Chinas mold industry will development to large, sophisticated, complex, high efficiency, long life span, and multi-functional direction.Plastic mould industry was developed along with the development of the plastics industry. Plastics industry is a new industry. Since the advent of plastic since decades, because of its rich, easy to make and low in cost of raw materials, plastics industry is developing rapidly, in some ways, it has been replaced by a variety of non-ferrous metals, ferrous metals, cement, rubber, wood, leather, ceramics and glass, become indispensable materials of various industrial sectors. Modern and contemporary in design and manufacturing of plastic mould plastic is very closely related to industrial development. With the rapid development of the plastics industry, plastic mould industry is rapidly developing.In our country, with the rapid development of the national economy, development of mold industry is very quickly. 2003 year mould industry sales 162.03 billion, over the same period last year increased by 41.57%; total profit to 12.85 billion, over the same period last year rose by 90.63%. Chinas mould industry has been rapid development. From the scale on the mould industry, China has leapt to third place in the world, second only to Japan and the United States. Can said in China has became die production powers, however, on entire die industry, large and medium-sized enterprise comparison less, small enterprise accounted for most; Meanwhile, domestic die industry of enterprise exists with variety of problem; and abroad related enterprise level compared to still has is large of gap, so domestic enterprise does not should blind optimistic, and should efforts development, and strong self, to should from Parties surface of challenge. At the same time, to seize development opportunities, as the mould production of power as soon as possible.Mold is an important manufacturing base in China, mould manufacturing is dedicated device. China started to build mould and die very early, but in the long run do not form. Until 20 century 80 years later, China mould industry into the fast track of development. In recent years, not only the State-owned development of mould enterprises has been greatly, foreign-funded enterprises, towns (individual) very rapidly in the development of mould enterprises. Incomplete statistics show that nearly 10 years the country (not including Hong Kong, Macao, and Taiwan figures, the same below) mold production and import and export developments, such as table 1, table 2 China mould industry profilesTable 1 1995 Year over the die output table of ChinaYear1995199619971998199920002001200220032004Value (billions of Yuan)145160200220250280316360450530Table 2 1995 Year over the stencil in China since import and export tablesYear1995199619971998199920002001200220032004Imports (USD)811009179963000663488827497700111174127200136930181300Exports (USD)4941700094289591132801737418775252343368049100Tables are visible, although Chinas mould industry has developed rapidly, but compared with the demand, clearly in short supply, its major gaps focused on precision, large-scale, complex, long-life areas of mold. Due to mould precision, long life, and production capacity of the manufacturing cycle, China and the international average, and is still a big gap between developed countries, therefore, need to import each year die.2 Die Material Depending on the molding method and tool life cycle (that is, number of products manufactured by) different, plastic molding to meet different needs, molds can be made from a variety of materials, and even can make comparison of special materials such as paper and gypsum. However, because most of the molding process requires high pressures, usually also have high temperature conditions, so far the most important material of metal, which have topped. Most of the time, mould material choice is not only related to the performance and the best price/performance, also mould processing method, or even the whole design.A typical example is a metal casting mold material selection, compared with machined molds, different materials for metal casting mold cooling system there is a big difference. In addition, different manufacturing methods also can have a shadow on the choice of material production, manufacture of prototype tooling is often the use of new technologies, such as computer-aided design and computer-integrated manufacturing, solid preparation of prototype molds. Compared with the previous method based on the model of, CAD and CIM method will be more economical, this is because this type of mould manufacturers will be able to make itself, and other technologies, can only be processed by outside vendors. In short, while the mold is often used in high-performance materials, but most still are those of conventional materials. Almost cannot be used for high performance materials like ceramic molds, this may be because of its advantages (performance such as high temperature does not change) is not needed in a stencil, on the contrary, as a sintered ceramic material, has the disadvantage of low tensile strength and poor heat transfer, application and only a small amount of mold. Parts used here are not using hot press process and production of powder metallurgy, but fired into the air, and air permeability of parts.In many molding methods, you must use the tunes according to one s own understanding of gas discharge, there has been several attempts using porous metal exhaust. Compared to the exhaust and specifically set, its advantages are evident, especially in the melt forward like a melted wiring, here are the most prone to problem areas: on the one hand to prevent melting of surface there is a clear connection, allowing you to avoid overflow, and other remnants of plugging porous. With such material when you die, in design and new issues appear on the forming process.3 Development trend of dieIn modern mechanical manufacturing , mould industry has become the basic industries of the national economy , many of the development and production of new products , to a large extent depend on the mold manufacturing technology , especially in the automobile industry, light industry, electronics and aerospace industries, such as especially important. Strength of mould manufacturing capabilities and moulds, high and low, has become one of the important measure of a national machinery manufacturing technology signs, directly affecting many sectors of the national economy development. Mould CAD/CAM is in die CAD and mould CAM developed on the basis of the development of, respectively, it is the application of computer technology in die and mold manufacturing a new leap forward. CAD/CAM the rapid development of technology , further improvement of the level of software, hardware , to mould industry has provided strong technical support , for the companys product design, manufacturing and development brought about a qualitative leap in production levels , has become a modern enterprise information, integration and optimal selection of networking. Chinese mold industry, in addition to continuing to improve productivity, more focus on the adjustment of industry structure and raising the level of technology development. Structural adjustment, mainly to professional adjustment of enterprise structure, product mix towards the high-end tooling development, to the improvement of the structure of import and export, high-end analysis and structure improvement of automobile Panel die forming, multi-functional composite tooling and machining and the application of laser technology in mould design and manufacture, and super high speed cutting finishing and polishing technology, information technology development.3.1 Mould CAD/CAM technology development trends21 century of die and mold industry of basic characteristics is highly integrated, flexible and intelligent, networked , pursuit of the goals is to improve product quality and production efficiency , shorten the design cycle and manufacturing cycles , reduce production costs , maximize the responsiveness of die and mold manufacturing , To meet customer needs. We will show the following characteristics.(1) Standardized CAD/CAM system can establish a standard parts database, non-standard parts database and mould parameter database. Standard parts in the repository in CAD design parts can always accessible, and USES the GT (group technology) production. The standard parts library storage in parts, although and design in the required structure is not the same, but the use of the system itself modeling technology can easily be modified, so as to speed up the design process, the typical die structure in parametric design repository is the basis of the realized according to the request of users, die structure similar to modify, can generate need structure. (2)Integration technology Modern mold design and manufacturing system should not only emphasize information of integration, more should emphasize the integration of technology, and management. In the development of mould manufacturing system emphasize much integration concept, namely the information integration, intelligent integration, string of parallel mechanism of the integration and personnel integration, it is more suitable for the future of manufacturing system needs. (3) Intelligent technology Application of artificial intelligence technology to realize product life cycle (including product design, manufacture, use) each link intelligent, realize the production process (including organization, management, planning, scheduling, control, etc.) each link the intelligence of the intelligent equipment and mold, and to realize the integration of man and system and people in them intelligent of the full play. (4) Network technology application Network technology including hardware and software integration achieved, various communication protocol and manufacturing automation protocol, information communication interface, system operation control strategies, which is the basis of all kinds of manufacturing system automation. At present already appeared through the Internet realize across national borders the success of the die design example. (5) Multi-disciplinary and multi-function comprehensive product design technology The future product development design not only use mechanical scientific theory and knowledge, but also used electromagnetism, optical, control theory knowledge. The development of the product to the performance of multi-objective optimization design, mould products in pursuit of dynamic and static characteristic, efficiency, the precision and the service life, reliability, manufacturing costs and the best combination of manufacturing cycle. (6) The reverse engineering technology application In many cases, some products are not from design concept, but some other products from or physical, the only product prototype or physical model, and no product design under the condition of die design and manufacturing to make a product. This is a place for through the forms of measurement, and then the measurement data of the CAD models and physical structure again, this process is Reverse Engineering RE (Reverse Engineering). Reverse engineering can shorten the cycle of from design to manufacturing, is to help designers realized such modern concurrent engineering design concept of a powerful tool, currently in engineering is getting more and more widely. (7) Rapid forming technology Rapid Prototyping Manufacturing technology RPM (Rapid Prototyping & Manufacturing) is based on the principle of Manufacturing, Rapid Manufacturing a product prototype, and with parts of the geometry of the complex degree not least, especially in a complex curved surface to the shape of the product Manufacturing in can demonstrate its advantages. It not only to be able to quickly create prototype for design evaluation, assembly calibration, function test, and can also through the shape copy rapid economic to create products mould (such as manufacturing electrode for processing EDM, as punch mould casting out and disappear) so as to avoid the traditional mould manufacturing time consuming, the high cost of NC processing, thus RPM technology in mould manufacturing of increasingly played an important role. 3.2 Die software features integratedDie software features integrated requirements of functional modules of the software is complete, while the function module using the same data model, to achieve the integrated management and information sharing, to support the mold design, manufacture, Assembly, inspection, testing, and management of the entire process, achieve optimal efficiency purposes. United Kingdom Delcam company series of software including the surface / solid geometric modeling, rendering complex engineering drawing, industrial design, design expert system of plastic mold, complex body CAM, art and sculpture, reverse engineering system of automatic programming system and online measurement system of complex shapes. Higher degree of integration software include:Pro/ENGINEER, andUG and CATIA .3.3 Mold design, analysis and manufacture of three-dimensional Traditional two-dimensional mold structure design has become increasingly unsuited to modern production and the integration of technical requirements. Mold design, analysis, fabrication of three dimensional, paper calls for new generation of die software to solid, intuitive feel to the design of the mold, using three dimensional digital model can be easily used in product structure of CAE analysis of manufacturability evaluation and numerical control machining, mold, forming process simulation and information management and sharing. Such as Pro / ENGINEER, UG and CATIA software with parameters, based on feature, all related to the characteristics, so that the mold concurrent engineering to become possible. In addition,Cimatron company Mold expert,Delcam company Ps-mold and Hitachi Space-E/mold is d professional injection mold design software, interactive d -shaped cavities, Core design, configuration and typical structure design of mould. Australia Mold flow simulation software company of three dimension realistic Mold flow Advisers has been widely praised by the user and the application. Huazhong University of Science and Technology in China developed similar software HSC3D4.5F and Zhengzhou University of technology Z-mold software. Manufacturing-oriented, knowledge-based intelligent function is a measure of software, one of the important symbols of the nature and relevance of the die. Cimatron injection molding experts of company software according to release automatically generate parting lines and parting surfaces, and products that correspond to the core and cavity, realize mould base parts, Automatic Bill of material and for NC machining drilling form, intelligent processing parameters setting, processing and results validation and so on.3.4 Die software application networking trends As mold in Enterprise competition, cooperation, production and management of globalization and internationalization, as well as the rapid development of computer hardware and software technology, online agile manufacturing technology in die and mold industry application of virtual design, both necessary and also possible. United States in the21 century manufacturing enterprise strategy, pointed out that to 2006 years of auto industry agile production / virtual engineering solutions, the vehicle development cycle from 40 months to 4 months.3.5 Die standardization and technical trend In recent years, the mold industry structure adjustment and reform increased, mainly in, large, sophisticated, complex, long-life, high development faster than General mould of moulds and mould standard parts; plastic mold and die-scaled up; and productivity growth in the number of professional mold factory; three-capital and the rapid development of the private sector; joint-stock reform pace. Die standard-applications will become more and more widespread, standardization of mold and mold standard parts can greatly influence the application of mould manufacturing cycle. Die standard-not only can reduce mold manufacturing cycles, and mold can improve quality and reduce tooling costs. At the same time, very broad prospects of rapid economic dies. As people require shorter production cycles, the better of molds, so rapid economic development die more and arouse peoples attention. To create a mold for example development of superplastic; with epoxy, polyester, or in which the filler metal, glass and other enhancements make a simple mold. This type of mold manufacturing process is simple, precision control, less shrinkage, low price, high life. Also use a cement-plastic production of automobile Panel die. And low melting point alloy die in, spray molding, casting, precision casting, stacked die, ceramic vacuum forming mold and shape and low cost molds using heat hardening rubber rapid manufacturing, rapid economic dies will be further developed. Quick change die frame, quick change blow in first class are also growing. Quick die change equipment of computer control and robot operation, quick test mode device technologies will also be developed and improved. Chinas mold industry to further develop the multifunctional complex moulds, apart from forming part of a multifunction die, also folding, locking, tapping, riveting and Assembly tasks. This versatile die are no longer mass produced parts, but a batch of components, such as contact and support components, various core components of micro-motors, electrical and instrument, and so on. The multi-color and multi-material plastic forming mold will also be rapid development. This mold to shorten the production cycle of the product, in different areas will be developed and applied in the future. Hot runner technology application, hot runner mould plastic moulds share will gradually increase. Hot runner technology mold can improve productivity and quality of products, substantial savings products and raw materials, application of this technology developed very rapidly in a foreign country, is very common. National hot runner molds are produced, some enterprises have reached about 30%, but in General, the ratio is too low and needs to be developed. With continuous improvement and development of plastic molding, gas assisted moulds and adapted to the high pressure injection molding process of mould will develop.4 Mould technologyDie collection of mechanical, chemical, optical, materials, electronics, computers, precision monitoring and information networks, and many other subjects, is a comprehensive multidisciplinary systems. Die technology of development trend main is die products towards more large, and more precision, and more complex and the more economic of direction development, die products of technology content constantly improve, die manufacturing cycle constantly shortened, die production towards information, and no figure of, and fine of, and automation of direction development, die Enterprise towards technology integrated of, and device excellent of, and production batch brand of, and management information, and business internationalization of direction development.4.1 rapid economic modeling technologyShorten the product development cycle is one of the effective means to win the competition.Compared with the traditional mold processing technology, rapid economic modeling techniques have characteristic of model cycles shorter, lower-cost, accuracy and life span and can meet the production requirements, comprehensive economic benefits is relatively significant mold manufacturing technology, mainly in the following technologies.(1) Rapid prototyping manufacturing technology (RPM). It includes the laser Stereo-Lithography (SLA) ; manufacturing technology of laminated profiles (LOM) ; forming technology of selective laser powder sintering (SLS) , and forming technology of Fused deposition modeling (FDM) and three dimensional printing technology (3D-P) .(2) Surface forming tooling technology. It refers to the use of spraying, such as electro-chemical corrosion of cast and a new method of formation of cavity and fine patterns on the surface of a technology.(3) Casting forming tooling technology. It main includes bismuth tin modeling technology, Zn-based alloy die making technology, resin composite forming mold technology and silicon rubber modeling technology, etc. (4) Cold extrusion and super into a shape modeling technology.(5) No mode of the multi-point forming technology.(6)KEVRON Steel punching technology of blanking dies. (7)Rapid manufacturing technology for die blanks. Mainly in the dry sands full mold casting real pressure and vacuum full mold casting, resin sand casting and lost-wax casting technique.(8) Other aspects of technology. Using nitrogen gas spring pressure, discharge, quick die changing technique, punch unit combination surfacing technology, cutting edge technology and solid casting die insert edge technology.4.2 Mould manufacture technologyIn terms of manufacturing technology, first of all is the use of CAD/CAM technology, computer modeling, programming and processing are the main means of NC machine tools,CAE software applications. Generally, they all use heat or hot-runner device. Few units with the worlds advanced level of difficult pin valve hot runner mold, completely eliminates traces part of the gate. Gas-assisted injection technique has been successfully applied. Application of high efficiency gas injection and core design of demoulding mechanism of innovation, have also made considerable progress. In terms of accuracy, plastics parts dimension precision can reach IT67 level, contact gap of 0.020.025mm, elastic deformation of the template to 0.05mm, parting surface roughness Ra0.2m , plastic mold life has reached 100 million times.CAD/CAM/CAE Technology at the application level to a new level, represented by the production of household appliances enterprises gradually introduced a considerable number of CAD/CAM systems, such as the United States EDS UG IIand the United States Parametric Technology company Pro/Engineerand the United States CV company CADS5and the United Kingdom Deltacam the company DOCT5and the Japan HZS company CRADE, and Israel company Cimatron, and United States AC-Tech company C-Mold Australia Moldflow Corporation MPA mold analysis software, and so on. The introduction of these systems and software, has spent a lot of money, but in Chinese mold industry, implementation of CAD/CAM integration, and can support the CAE technology for molding processes, such as a computer simulation of the mold filling and cooling, has made a certain amount of economic benefit, to promote and facilitate Chinas mold CAD/CAM technology development. In recent years, independently developed in China plastic mould CAD/CAM system has been greatly developed, mainly in China was developed by the Software Engineering Institute of Beihang University CAXA systems, development of injection mould of Huazhong University HSC5.0 system and CAE software such as, the software has to adapt to specific situations of domestic mould, Application on the computer and a lower price and other features to further popularize the mold CAD/CAM technology to create a good condition. 4.3 Injection molding technology Plastic injection molding technology is developed according to the principle of casting from the late 19th century and early 20th century , is now one of the most widely used method in the plastic processing. Part the Act applies to all thermoplastics and thermoset plastics. In terms of forming technology, mainly superplastic forming, stamping die function of composite, plastic, plastic molding gas assist injection technology of precision forming technology and hot runner technology, high pressure injection molding technology. Moreover, with the development of advanced manufacturing technology and improvement of mold industry, mould design, production, there have been some new management concepts and models. There are: single production characteristics of flexible manufacturing technology adapt to die; to create the best team of management and efficiency, lean production; improving the ability of quick response in concurrent engineering, virtual manufacturing, agile manufacturing, manufacturing and global network of new production philosophy; extensive standard accessories Division of collaborative production models; green design and manufacture meet the needs of sustainable development and environmental protection and so on.Injection molding machine works is similar to an injection syringe, it was with the help of screw (or plunger) thrust, will have good melting of plastic State (that is, sticky fluid) injection into the cavity of a closed well, curing process of shaped after the products. Injection molding is a circular process, each cycle include: quantitative feeding - melting and plasticizing - pressure injection - molding cooling - Kai model pickup. Shut again with the plastic piece out, for the next cycle.4.4 Mold material and surface treatment technology Mold on the industrial level, application materials is critical. Due to improper use of material and material, resulting in premature failure of the die, representing about failure die 45% above. Mold material, common cold work die steel CrWMn, andCr12and theCr12MoV W6Mo5Cr4V2, flame hardening steel ( Japan AUX2, andSX105V (7CrSiMnMoV) ; New hot work die steel United States H13, and Sweden QRO80M, andQRO90SUPREME ; commonly used steel-hard plastic mold steel ( such as United States P20), and age-hardening steel ( such as United States P21, and Japan NAK55 ), heat treatment-hardening steel ( such as United States D2, Japan PD613, andPD555, and Sweden won white 136 ), powder mold steel (Japan KAD18 and KAS440) ; cover drawing die for standard HT300, andQT60-2, andMo-Cr, andMo-V , such as cast iron, large formwork HT250. Multi-position progressive die for precision die steel-bonded cemented carbide and hard alloy YG20 . Mold surface treatment, the main trend is: by the infiltration of a single multi-effect of alloying elements to seepage, composite (such as TD method) development; General diffusion CVD, andPVD, andPCVD, ion penetration, ion injection direction; coating that can be used are: TiC, andTiN, andTiCN, andTiAlN, andCrN, andCr7C3, andW2C, atmosphere heat treatment to the development of vacuum heat treatment and heat treatment means. In addition, currently on laser hardening, glow plasma nitriding technology and electroplating (brush plating) corrosion enhanced technology has also received increasing attention. 4.5 Chinas mold industry common technology Mould in the Twelve-Five period need to be addressed should be focused on key technology of mold information, digital technology and precision, ultra fine, high speed, high performance technology breakthrough. Chinas mold industry still needs to improve the common technology in the future: (1) Established in CAD/CAE advanced mould design of platform technology, modernization of improving die design, information technology, intelligent, level of standardization. (2) Built on the CAM/CAPP based on a combination of advanced processing technology and advanced manufacturing technology, raise the level of mold processing automation and productivity. (3) Die manufacturing enterprise information management technology. For example, PDM(product data management),ERP(enterprise resource planning),MIS(management information system for mould manufacturing) and INTERMET platform, development, promotion and application of information network technology. (4) Research on high speed, high precision, complex processing technology and applications. Such as ultra fine stamping die manufacturing technology, precision plastic and die-manufacturing technology. (5) Increase mold production efficiency, reduce costs, and shorten the rapid economic mould manufacture technology of mould production cycle. (6) Application of advanced manufacturing technology. For example hot runner technology, gas-assisted technology, virtual technology, nanotechnology, high speed scanning techniques, such as reverse engineering and concurrent engineering technology in the application of mold research, development and processing (7) Simulation technology of raw material shape in a stencil. (8) Advanced mold processing and research and development of proprietary equipment. (9) Die and mold parts, important accessories of standardization technology. (10) Detection technology of mould and its products. (11) Quality, research and development of new die material and its correct application. (12) Modern management technology of mould production enterprises.5 There is a problem and the main gap Although the mold volume has now reached a considerable scale, die level has greatly improved, design and manufacture level in General, but lags behind Germany and the United States, Japan, France, Italy, and other industries in developed countries a lot. Major performance problems and gaps that currently exist in the following areas: (1) Total supply Die from domestic distribution rate is only 70% per cent. Low-grade die GLUT, high-end die distribution rate is only 50% or so. (2) Structure and enterprise organization structure, product mix, technology import and export structure is unreasonable Most mold production plant in China was made in distribution of mould workshop (workshop), originating in the proportions of up to 60% around, and die abroad more than 70% is a commodity mould. Professional mould factory was large and comprehensive, self-contained Organization, and abroad are little, small but excellent. China has large, sophisticated, complex and long life expectancy to less than the amount of mold 30%, and abroad in 50% above. 2004 year, die import/export ratio of 3.7:1, imports and exports net of imports amounted to 13.2 billion dollars, for the State of the worlds largest net importer of mold. (3) Mold products levels significantly lower than international levels, production cycle are higher than international levels Low levels of products mainly in the surface roughness in precision, the cavity of the mould, and the structure of life. (4) Weak development, poor economic benefits Low mould enterprise technical personnel in China, low level, and do not pay attention to product development, often in a passive position in the market. Each stencil in China workers average years to create about 1 million dollars, foreign mould industry in developed countries are 1520 million dollars, some up to 2530 million dollars, and is also used quite a lot of mold enterprises in China in the past workshop management, so fewer enterprises modern enterprise management. Many causes of this gap, in addition to die as long-term history did not receive the attention it deserves, and most outside the mechanism of State-owned enterprises cannot adapt to the market economy, there are the following reasons: (5) National policies support the die industry is not enough Although the State had enacted clear industrial policy in the mold industry, but less supporting policies, enforcement is weak. Currently enjoying mould enterprise national sales tax only 185, most companies are still too heavy a burden. For die and mold enterprise technology imported equipment to pay a considerable amount of taxes, influence technological advances, loans and private enterprise is very difficult. (6) A serious shortage of personnel, scientific research, development and technology research into too little Die industry technology, capital and labor intensive industries, as the era of progress and development, mastering and shortage of skilled talent exception to using new technology, advanced die Machinist and business management talent is also very nervous. Due to die poor efficiency and enough attention to scientific research and development and technology, research institutes and tertiary institutions eyes revenue-generating, resulting in mold industry invest too little in research and development and technical problems, mold technology development is not progressing fast. (7) Low levels of technology and equipment, and poor compatibility, low utilization rates Chinas machine tool industry progress faster in recent years, has been able to provide a complete set of high-precision process equipment, but compared with foreign equipment, there are still large gaps. Although many companies have introduced many advanced foreign equipment, but the overall level of equipment is much lower than many foreign enterprises. Due to institutional and financial reasons, the introduction of equipment does not fit, and supporting equipment and accessories are not widespread, equipment utilization and low long-term lack of a better solution. (8) Degree of specialization, standardization, and commercialization of low, poor collaboration capabilities Because of a long time, large and comprehensive self-contained effect, die low levels of specialization, specialization is not delicate goods of low. Chinas annual production of mould, mould of goods accounted for only 40of about, the rest for captive use. Die due to poor collaboration between enterprises, is difficult to complete a large die sets the scale of the task. Low levels of standardization of mould, mould standard parts with low coverage also has larger effect on die quality, cost, especially for mould cycle has a great influence. (9) Mold material and tool technology Mold performance, quality, and variety of materials problems tend to affect die quality, long life and cost, compared to steel made in China and imported steel has a large gap. Plastic, sheet metal, poor device performance, would directly affect the improvement of mold.6 Mould industry development planAt present, Chinas economy is still in a stage of rapid development, international development trend of economic globalization is increasingly clear, this is Chinas mold industry rapid development provides good conditions and opportunities. On one hand, domestic tooling market continued rapid development, on the other hand, mould manufacturing transfer to China gradually and the multinational group to die in China Sourcing trends are clear. So, look to the future, General mold of international and domestic market development prospects, are expected to die in a favorable market environment under rapid development, China will not only as a die for power, and it gradually to mold manufacturing country. The Twelve-Five period, China mould industry not only in terms of quantity and quality has greatly improved, but its industrial structure, product innovation, development capacity, institutions and mechanisms, as well as technological advances will achieve greater development. According to the Twelve-Five die industry development plan, Twelve-Five die during product development mainly in the following categories: (1) Automobile covering mould Total stamping die mold for 40% above. Automobile Panel dies mainly for automobile Assembly, including for agricultural vehicles, construction machinery and agricultural machinery also supporting Panel dies, it in stamping die, with a large representation of molds are mostly large and medium-sized, complex, high technical requirements. Especially for cars supporting the Panel die, more, can represent the level of stamping dies. This type of mould in China have had a certain amount of technical basis, for mid-range cars has been supporting, but the level is not high, lack of capacity, about half currently meet only. Luxury car in Panel die mainly rely on imports, has become the bottleneck of automobile development, greatly affects models of development. (2) Precision stamping mould Multi-position progressive die for precision die represent the development direction of stamping die, life requires a very high precision requirements, mainly for electronics, automotive, instrumentation, electrical appliances and other facilities. Both die, China has a considerable basis, and the introduction of foreign technology and equipment, product has reached the world level of the individual enterprise, but most companies still have a larger gap, total lack of supply, import a lot. (3) Large precision plastic mould Total amount of plastic die mold near 40%, and this proportion is rising. Plastic die in the for car and appliances supporting of large injection die, for IC supporting of plastic seal die, for electronic information industry and machinery and the packaging supporting of multilayer, and more cavity, and more material, and more color precision injection die, for new building materials and the water saving agricultural supporting of plastic different profile Extrusion die and the pipeline and nozzle die, At present we although have technical basis and have been quite fast development, but the technology level and foreign still have a large gap, and the amount of demand exceeds supply, the annual imports of hundreds of millions of dollars. (4) Main mould standard parts Currently has a large main is shuttering, guiding production of standard components for dies, push the push rod tubes, elastic elements, etc. These products are not only supporting a large number of domestic needs, export prospects are good, should continue to develop. Nitrogen cylinders and runner symbols mainly rely on imports, should increase the level on the present basis, creating standards and the Organization of production on a large scale. (5) Other high-tech content of mouldDie total to 8% of the die, precision die casting technology for large thin-wall high, difficult. Magnesium alloy die c
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