金属注射成型(MIM)和陶瓷注射成型(CIM)脱脂方法和安全系统-纳博热

MetalInjectionMolding(MIM)andCeramicInjectionMolding(CIM)金属注射成型（MIM）和陶瓷注射成型（CIM）DebindingMethodsandSafetySystems脱脂方法和安全系统ChinaInternationalPowderMetallurgyExhibition&Conference中国国际粉末冶金展和会议27.April2014FrankMurkenNaberthermGmbH/德国纳博热工业炉有限公司BoothA105Contents/目录Introduction/介绍Methods/方法DebindinginGasAtmosphere/气氛下脱脂CatalyticDebinding/催化脱脂DebindinginAir/空气中脱脂SinteringFurnaces/烧结炉本文档由本文档由上海的光大会展主办单位的朱啸峰总经理提供，欢迎行业一起分享。MIM:/下载地址：/down/1/32.htmlPowder/粉末metallic/ceramic金属/陶瓷Binder粘结剂Mixing/混合Dispersing/分散Granulating/粒化Feedstock喂料1 Introduction/介绍Removalofthebinder/去除粘结剂

Thermaldebinding/热脱脂

CatalyticDebinding(nitricacidandnitrogen)/催化脱脂（硝酸和氮气）

LiquidSolventsorwater/液体溶剂或水Molding成型Greenpart生坯Brownpart熟坯Debindingingasatmosphere(non-flammableorflammablegases)在气氛下脱脂（不可燃或可燃）2 Methods/方法DebindinginAir空气中脱脂Electricalheating/电加热Debindingandpre-sinteringinhot-wallretortfurnaces在热壁罐式炉内脱脂和预烧结Debindingandsinteringinhightemperaturecold-wallretortfurnaces在高温冷壁罐式炉内脱脂和烧结Electricalheating/电加热Gas-fired/气烧Debindingandsinteringingasfurnaces在气烧炉内脱脂和烧结Debindinginaircirculationfurnaces在空气循环炉内脱脂Debindingandsinteringincombifurnaces在组合箱式炉内脱脂和烧结3 DebindinginGasAtmosphere/气氛下脱脂SafetyConcept:/安全方案：Nooxygeninsideprocesschamberbeforetheheatingprocesscanbestarted!/确保热处理工艺开始前工艺腔内无氧！Coldevacuationofthefurnace/冷态抽真空Flushingthefurnaceretortwithprotectiveorreactivegas/用保护气或反应气体冲刷炉罐

Monitoringofgassupply/监控供气=>Safeoperationunderoverpressure/过压下的安全操作kSafeO3 DebindinginProtectiveGasAtmosphere(IDB)/保护气氛下脱脂IDB=InertDebindingundernonflammablegaseslikeargon,nitrogenornonflammableforminggasesatanoverpressureofapprox.35mbarrelativeIDB=在约35mbar相对过压、不可燃气体气氛下惰性脱脂（氩气，氮气或不可燃气体）SiemensS7PLCcontrolswithtouchpanel

带触摸屏的西门子S7PLC控制器Fail-safePLCwithadvancedsafetylogicprovidesforunattendedoperation

具有先进安全逻辑的故障保护PLC用于无人操作Automaticpre-programforretortinerting

自动的预处理程序，用惰性气氛冲刷炉罐Fullyautomaticprocesscontrol

全自动工艺控制Torchforthermalafterburningofexhaustgases

用于废气热力后燃烧的火炬3 DebindinginHydrogenAtmosphere/氢气气氛下脱脂Debindingunderhydrogenatanoverpressureofapprox.35mbarrelative在约35mbar相对过压，氢气气氛下的脱脂Sophisticatedandmaturedsafetyconcept

经验丰富的和成熟的安全方案Onlycertifiedandindustryprovensafetysensorsareused

只使用通过相应认证的安全传感器Fail-safePLCwithadvancedsafetylogicprovidesforunattendedoperation

具有先进安全逻辑的故障保护PLC用于无人操作Fullyautomaticprocesscontrol

全自动工艺控制EmergencyN2-flushcontainerforpurgingthefurnaceincaseoffailure

紧急氮气冲洗罐，用于在故障情况下冲刷炉子CatalyticDebinding(CDB)/催化脱脂（CDB）Thepolyoxymethylene(POM)ofthebinderwillberemovedfromthegreenpartandchemicallydecomposedundertheinfluenceofnitricacid.粘结剂的聚甲醛（POM）会从生坯中去除，并且在硝酸的影响下化学分解。Safetysystemcomparablewithfurnacesworkingunderhydrogen

安全系统可参考在氢气下工作的炉子Acidpumpintegratedinsafetysystem

硝酸泵集成在安全系统中Gascirculationforuniformtemperature

为了均匀温度的气体循环FixratioofHNO3/N2oradjustableasanoption/固定的HNO3/N2比，可调的比率作为可选配置Torchforthermalafterburningofexhaustgases/ 用于废气热力后燃烧的火炬5 DebindinginAir/空气中脱脂PassiveSafetyConcept:/被动安全方案：Theelectricallyheatedfurnacesoperateaccordingtothedilutionprinciplebymeansoffreshairinjection,inordertoreducethegasemissionsfromtheloadtoanoncombustibleatmosphereinsidethefurnace.电加热炉采用稀释原理，通过导入新鲜空气将炉内物料的有机物排放量降低至不可燃气氛。Variousdebindingconceptsdependingone.g.debinding,productrange

根据含胶量、产品种类不同选择脱脂方案Catalyticorthermalafterburnersavailable

废气处理可选择催化或热力燃烧5 DebindinginAir/空气中脱脂Chamberfurnaces箱式炉Bogiehearthfurnaces台车炉Aircirculationfurnaces空气循环炉6 SinteringFurnaces/烧结炉Hot-wallretortfurnacesUpto1150°CStandardizedsizesupto1500lHorizontalandverticalloading热壁罐式炉-最高温度1150°C-最大标准容积1500升-可水平或垂直装载Cold-wallretortfurnacesUpto3000°CStandardizedsizesupto500lHorizontalandverticalloading冷壁罐式炉-最高温度3000°C-最大标准容积500升-可水平或垂直装载SinteringingasfurnacesUpto1400°CVariousfurnaceconcepts在气烧炉中烧结-最高温度1400°C-可提供各种炉型SinteringinelectricalfurnacesUpto1800°CVariousheatingsystemsVariousfurnacesconcepts在电加热炉中烧结-最高温度1800°C-可提供各种加热系统-可提供各种炉型Sinteringingasatmosphere/Vacuum在气氛保护或真空环境下烧结Sinteri