[整理版]注塑完整版

射出成形問題解決方法技術APPLICATIONGUIDE曾热店齿冷颁酝樟绪蔬胚拟侥彻蚂臼鹃显莫籍特疮慌琵骑菱侵掣丽宠祟汾注塑完整版注塑完整版1TROUBLESHOOTING射出成形過程1將材料餵入成形機的料筒內2材料靠著旋轉的螺桿達到輸送熔融和混煉,此時料管同時對材料進行加熱3熔融的材料在高壓之下射入模腔內4成品從模具中冷卻後才拿出5成品拿出後,再進行下一次的射出成形屋攒叁厌揩钾饮拣晃虽冀非晾矩麻放兹延诬颤素夸陋乃噪挂蛹此滦饭雀冠注塑完整版注塑完整版2TROUBLESHOOTING射出成形條件料管溫度/模具溫度/烘料溫度射出速度/螺桿轉速射出壓力/保壓/背壓計量/保壓切換點/鬆退/殘量射出/保壓時間,冷卻時間速度壓力位置時間溫度PRESSURE條件局警似雁且助坡历血粟巨译擞地罢留肯香芭及版处拳帅铆载粗恒套颅焊摔注塑完整版注塑完整版3TROUBLESHOOTING最初成形條件的設定方法1溫度低熔融溫度避免材料裂解,降低成形時間2壓力低壓射出,低保壓與低背壓避免過度填充損傷模具3合模壓力大一點避免模具撐開4速度射速慢避免填充螺桿轉速慢模具開與關慢避免損傷模具計量小避免過度填充5時間射出保壓長確定澆口已封閉冷卻長敞纽其账弦熔澎氛学臭绅晤龚兹员早抱仔擒年竿胸州恩旷怀奠慷间形臀炮注塑完整版注塑完整版4TROUBLESHOOTING多段式射出成形理論與應用控制射出速度的第一段,第二段,第三段成品表皮是會影響成品的外觀控制保壓在第四段,第五段,第六段成品表皮是會影響成品的功能特性142356123456锐仆休状瓶税卑屹鸳保鱼确淑格校插粘蜘册崇鸳深炊樊业妻列眺豪楔连烙注塑完整版注塑完整版5TROUBLESHOOTING射出速度位置圖1用中高速2用低速避免靠近澆口位置處有噴流痕和銀線3用高速避免流痕和結合線4用中低速避免瓦斯氣毛邊,且易於切換到保壓澆口位置填充結束射出速度1234燒焦瓦斯氣毛邊噴流痕蛇紋結合線流痕胡格戈欧谆搭碴词屁柏屡皇楼焰英茧湿瓢袄炸丝谁旷淹该穆错搀书刊针钧注塑完整版注塑完整版6TROUBLESHOOTING保壓位置圖1用低壓避免毛邊2用高壓避免縮水與尺寸變小3用低壓避免殘留應力如果用低壓時會產生下列情況短射縮水尺寸變小如果用高壓時會產生下列情況毛邊翹曲尺寸變大龜裂殘餘應力脫模問題保壓切換點澆口封閉123脫模翹曲殘餘應力縮水短射尺寸變小毛邊伯渐产榔汗庶迁壮诊挂襄失晋粹可狙便慷嗽旭辟雅溶父肿绒邯爬潞态彦帮注塑完整版注塑完整版7TROUBLESHOOTING模穴壓力與時間曲線圖T0T1T2T3影響射出階段的因素射出速度液壓油熔體和模具溫度材料黏性螺桿驅動之壓力影響效果A材料黏滯性能分子劣化結晶性在塑品表面之分子定向性B塑品表面品質影響壓縮階段的因素切換至保壓貯存壓力控制影響效果A材料結晶性等方向性B塑品完整性毛邊重量影響保壓階段的因素模壁溫度模具變形夾模單元穩定性夾模力大小影響效果A材料結晶性塑品內部分子定向性縮水量B塑品重量尺寸孔隙縮水痕應力鬆弛頂出難易度INJECTIONSTAGECOMPRESSIONSTAGEHOLDINGPRESSURESTAGE峦勃啄有侯拧颅循充棉瑟另蛔髓耶误韦谜洱徐彝郧绣欺媚许豆郝惫衅汰森注塑完整版注塑完整版8TROUBLESHOOTING模穴內壓曲線圖縮不同的軸向螺桿移動速度造成在壓階段明顯的壓力變化高的模具溫度可以改善模具內的壓力傳遞在冷卻階段中,澆口的設計對保壓壓力有明顯的影響模穴內介於接近澆口處及接近流徑末端處也有明顯壓力差TIMEPCTINTHOLD2THOLD112DPCIN1DPCIN2TC1TC2TC1TC2TC模溫TIMEPC121靠近澆口2遠離澆口TIMEPC1231澆道澆口2模狀澆口3針點澆口TIMEPC123VS1VS2VS3VS軸向螺桿速度准迭跟炼跌援贪敝该难命笋贬姆针吊咒订悟购占覆曾缎晚罩火垄杉钟敛涣注塑完整版注塑完整版9TROUBLESHOOTING從射出保壓階段切換點位置對模穴壓力曲線的影響圖時間PC時間PC時間PC時間PC從射出階段到保壓階段無切換點的射出成形延遲切換模具料材料流回料管對模具有損傷形成毛邊提早切換用保壓壓力充填模穴表面痕跡正確的切換從射出至保壓是平順的轉換稀服苞辛锤浅蜗诈摹沫阎痊巩绿糟宴膀旷伪瞄百粒汉寒今笆水玫喀万昧廊注塑完整版注塑完整版10TROUBLESHOOTINGBLACKSPOT,CONTAMINATION/黑點MATERIALBURNINGININJECTIONCYLINDERCONTINUOSBLACKSPOTBYLONGRESIDENCEANDBURNINGINDAMAGEDSCREWANDBARRELBLACKSPOTBYPARTIALOVERHEATINGINDAMAGEDSCREWHEADBLACKSPOTBYLONGTIMEMACHINESTOPINSTATEOFHEATINGOFTHEINJECTIONCYLINDERBLACKSPOTBYBURNEDMATERIALINNOZZLEPARTCONTAMINATIONSMALLMETALPIECESBYDAMAGEDSCREWANDBARRELCONTAMINATIONINSURFACEOFTHEMATERIALBAGONFEEDINGTOHOPPERANDSILOCONTAMINATIONOFSTRINGANDSLICEINOPENINGTHEBAGCONTAMINATEDAIRINAUTOFEEDINGINSUFFICIENTLYDISPERSEDPIGMENTDEGRADATIONOFFLAMERETARDANTANDSTABILIZINGADDITIVES李敷偿搅逆锤地腰涌处伺豺坎拟鳞晦罚仁衬奔泥争案踌搁装姑亭慰啮泡贼注塑完整版注塑完整版11TROUBLESHOOTINGBLACKSPOT,CONTAMINATIONMATERIALBURNINGININJECTIONCYLINDERCONTINUOUSBLACKSPOTBYLONGRESIDENCEANDBURNINGINDAMAGEDSCREWANDBARRELBLACKSPOTBYPARTIALOVERHEATINGINDAMAGEDSCREWHEADBLACKSPOTBYLONGTIMEMACHINESTOPINSTATEOFHEATINGOFTHEINJECTIONCYLINDERBLACKSPOTBYBURNEDMATERIALINNOZZLEPART魄因烯邱炽马蓟文雍墒阴釉傣筋告哇加带迢篱饯飞茄魂防缔撼罐啪汪伍闪注塑完整版注塑完整版12TROUBLESHOOTINGBLACKSPOT,CONTAMINATIONDESIGNGUIDEFORMATERIALFEEDINGBLOCKININJECTIONMOLDINGMACHINECONVENTIONALDESIGNMATERIALFEEDMODIFIEDDESIGNADDTAPER152OREDUCEMATERIALBURNINGEASYCLEANINGMATERIALFEED钻拈讹数殷错趟众日审千精惶狼兑罢匡络耙嚷睡掀成炸江撼甸析屡勉粮牙注塑完整版注塑完整版13TROUBLESHOOTINGBLACKSTREAK/黑紋CAUSESCOUNTERMEASURESOVERHEATEDMATERIALREDUCEMATERIALTEMPSUFFICIENTPURGEOFMATERIALININJECTIONCYLINDERREDUCECYCLETIMEANDRESIDENCETIMEREDUCESCREWRPMREDUCEBACKPRESSUREIMPROPERINJECTIONMACHINECHECKSCREWANDBARRELCHECKUNBALANCEOFSCREWIMPROPERMOLDDESIGNINCREASEGATESIZEREDUCEINJECTIONSPEEDINCREASECLEARANCEOFDIMENSIONSBETWEENEJECTORPINANDHOLEADDAIRVENTCLEANGREASEANDOILINSURFACEOFMOLD原蒸髓拍迸貌踊骡婉晚秀棍锭吻厌熬渠猛司拼倍润嚷脸孝君妆俺英挖撰爬注塑完整版注塑完整版14TROUBLESHOOTINGSILVERSTREAK/銀線MOISTUREONMATERIALDRYMATERIALPRIORTOUSEDEGRADATIONOFMATERIALREDUCECYLINDERTEMPTOOHIGHINJECTIONSPEEDREDUCEINJECTIONSPEEDAIRTRAPPEDINSTAGEOFPLASTICIZINGMIXTUREOFCOARSEANDFINEGRANULESTOOLOWMOLDTEMPIMPROPERMOLDDESIGNNONMELTEDMATERIALINCREASEBACKPRESSUREREDUCESCREWRPMAVOIDUSEOFNONUNIFORMMATERIALINCREASEMOLDTEMPBALANCEGATESRELOCATEGATESADDORINCREASEGASVENTINCREASEMELTTEMPANDM/CSIZEAVOIDUSEOFCONTAMINATEDMATERIAL策谷杉脂俞席发滓哀幌晋滔檄镊度虫殃蒋卯妆棱胀锚叮焊寇询汐昼尚悉痔注塑完整版注塑完整版15TROUBLESHOOTINGWELDLINE/結合線TOOLOWMELTTEMPTOOSLOWINJECTIONSPEEDTOOFASTMOLDCOOLINGINCREASEMOLDTEMPINCREASEINJECTIONSPEEDANDPRESSUREINCREASEMOLDTEMPIMPROPERMOLDDESIGNADDADDITIONALGATESINCREASEGATESIZERELOCATEGATESINCREASESECTIONTHICKNESSPOORMATERIALFLOWUSEHIGHFLOWMATERIAL兩股塑膠經流動合併時會產生結合線1熱結合線2冷結合線12钎既曙柴畅草胺班滋肾碧俞锥锋耐琅吞由襄缴酚盆朝充忘偶郡连盾辽衫聚注塑完整版注塑完整版16TROUBLESHOOTINGWELDLINE/結合線OCCURWHENTWOORMOREFLOWPATHSMEETDURINGTHEFILLINGPROCESS塑膠充填時,兩道以上塑膠流遇上時就會發生艺荔椎仟蘸肥机瘪目玻侯累吃黑滨允剿叛唉倡虐候蔷裳聚藩冯常奠兴铸菠注塑完整版注塑完整版17TROUBLESHOOTINGWELDLINE/結合線WELDSSTRENGTH,CHEMICALRESISTANCEANDAPPEARANCE結合強度,耐化學性與外觀表現AREINFLUENCEDBY/由以下因素所影響MATERIALSELECTION材料選擇PROCESSINGCONDITIONS成形條件MOLDDESIGN模具設計PARTDESIGN成品設計WELD融合界搭姥烟国锚圃遍早喝添河狙看很对吹娘胳答襄叶箭沦韦懦蛙家弥卖帝岗注塑完整版注塑完整版18TROUBLESHOOTINGWELDLINE/結合線在結合線的區域是物性最脆弱的地方造成原因不完整的分子結合與擴散冷卻時分子的配向不規則在結合的表面有V字型的凹陷存在在結合面有微小的氣孔與相異材質的存在嚣卓按片汕绳郑蛊遍恋贷型育杰降贪姆谅赚钦缕凭袄铺溅衙服娘狄沥银先注塑完整版注塑完整版19TROUBLESHOOTINGWELDLINE/結合線MOLECULARDIFFUSIONANDENTANGLEMENT/分子的擴散與分佈MELTFLOW熔融流動MELTFLOW熔融流動WELDINTERFACE/結合介面NODIFFUSION無擴散PARTIALDIFFUSION部份擴散COMPLETEDIFFUSION完全擴散掏娩求厉敷豌啃轮莉患坷孜挖固嗽擞犬扔荫犹慎督红鳞搀取上蹦命坐生罐注塑完整版注塑完整版20TROUBLESHOOTINGWELDLINE/結合線FROZENINFIBERORIENTATION/纖維分佈WELDLINESTRENGTHSFORFIBERREINFORCEDPOLYMERSCANBELOWFORANUMBEROFREASONSINCLUDINGUNFAVORABLEFIBERORIENTATIONATTHEWELDINTERFACEDUETOTHEFOUNTAINLIKEFLOWBEHAVIOROFTHEFLOWFRONT纖維強化塑膠可能會因結合介面纖維分散的不理想,而造成結合線的強度更弱WELDSTRENGTHRETENTIONPROBLEMMAYBEMOSTSEVEREFORLONGFIBERREINFORCEDTHERMOPLASTICMATERIALS長纖熱塑形塑膠更易造成結合線強度殘留問題反掣喻讨纂伤多壶顿快这原炊搀阴锈搜触筒彤顶办易疙苔啸攀滔贱颠绎泰注塑完整版注塑完整版21TROUBLESHOOTINGWELDLINE/結合線VNOTCHSHAPEOFWELDLINE結合線的V型缺口POORBONDING鍵結效果差POORBONDING鍵結效果差RICHBONDING鍵結效果佳WELDCROSSSECTION交錯結合THENOTCHISANESTHETICPROBLEMANDACTASSHARPSTRESSCONCENTRATORFORPARTS缺口的形成會造成成品應力的集中缺口的形成會造成成品應力的集中,結構功能降低結構功能降低谤陷频俘腋审拴谎胺鹅宠抖羡完宝焕谨削兄合翌督酗写售受属肮显样氯猪注塑完整版注塑完整版22TROUBLESHOOTINGDESIGNGUIDEWELDLINES結合線WELDVANISHINGANGLE結合消失角度CORE模穴WELDANGLE結合角度MELTFLOW流動方向WELDLINESTENDTODISAPPEARATA“VANISHINGANGLE”REACHES120OTO150ODEPENDINGONTHEMATERIAL結合消失角度視材料而定,一般以120O到150O為宜ADAPTEDFROMROBERTA,MALLOYPLASTICPARTDESIGNFORINJECTIONMOLDING1994THICKERLONGWELDLINE長結合線SHORTWELDLINE長結合線旨盆悸趟纵蘸邱利幸辞垒怂砸倒叹笆颐揭鸡越猿升斟束掉爹加靠权验顾袜注塑完整版注塑完整版23TROUBLESHOOTINGWELDLINE/結合線WELDSTRENGTHDEPENDINGONTHESIZE/SHAPEORTHENUMBEROFCORE結合線強度視模穴的大小,形狀和數量決定1234512345ONECORE單模穴MULTIPLECORES多模穴WELDSTRENGTHSTENDTODECREASEASTHENUMBEROFFLOWSTREAMDIVISIONSANDRECOMBINATIONINCREASES塑膠流分流愈多,則結合線強度愈弱PARTICULARPROBLEMFORGRILLTYPESTRUCTURE網狀結構的衍生問題1234512345氏蓝捧淑伸么走牟页碉定悼帧缘腑程命剿绞蓝古夹辈仅寝裕剪闹鲸阂浊畔注塑完整版注塑完整版24TROUBLESHOOTINGDESIGNGUIDEWELDLINES結合線IMPROVINGWELDPERFORMANCEANDAPPEARANCE結合線外觀和強度改善ADDANOVERFLOWWELLADJACENTTOTHEWELD增加一個溢流井來調整結合線BUTTWELDWELDOVERFLOWWELL在溢流井處結合MULTIPLEGATINGSCHEME多點式進澆BUTTWELDSPOKEGATING舵形進澆SHORTERFLOWLENGTH流動較短踏廷睛胰霄顷诬魂塔稍弗底苗掣敷轨翼稀陆乓邢骨讳袖衔妖淆秽盈袍仲棍注塑完整版注塑完整版25TROUBLESHOOTINGWELDLINE/結合線IMPROVINGWELDPERFORMANCEANDAPPEARANCE/結合線的強度和外觀改善PROPERGATERUNNERDESIGN適當的流道澆口設計INCREASEMOLDTEMPERATURE提高模溫VACUUMVENTING逃氣孔改善MULTILIVEFEEDINJECTIONMOLDING喂料系統的改善CAEMOLDFILLINGSIMULATION電腦輔助模流分析孰怔液济卢弯墟昏彰骡惫膀弄唇西瞥壕蜗像乙段培拐爷译寿队优惜黎盯扔注塑完整版注塑完整版26TROUBLESHOOTINGRIBS/肋GUIDELINESFORRIBDIMENSIONSCOMPONENTSWALLTHICKNESSTDRAFTPERSIDED05O15ORIBHEIGHTHLESSTHAN5TTYPICALLY25T3TRIBSPACINGONCENTERMORETHAN2T3TBASERADIUSR025T040TRIBTHICKNESSW04T08TLESSTHAN05TFORPC/ABS,05T07TFORABS圃孪诅蜘镍旁屠牲果咙胡便谅体联井隐瘁趁锭凶车袄仕辽某擒悔溺槽撤善注塑完整版注塑完整版27TROUBLESHOOTINGRIBSRIBSWITHEXCESSIVEWALLTHICKNESS肋肋璧厚設計破绥根芋夏颠翌酞谈虎前品绦防辉渍浙授述瓜戚来泌梧秉燥折星咽变卧嵌注塑完整版注塑完整版28TROUBLESHOOTINGBOSSABOSSWITHOUTSIDEDIAMETERWHICHISTWOTIMESTHEINSIDEDIAMETERISSUFFICIENTLYSTRONGBOSS的設計外徑應為內徑的兩倍以上,才有足夠的強度恐摊丢领彪满吐桐涡豢僧煽痈未倚汀膊绪淤您努携恶饰塌止汗雀掌瑚蕉昭注塑完整版注塑完整版29TROUBLESHOOTINGBOSSGUSSETSAREANOTHERFORMOFRIBBINGTHATCANBEUSEDTOREINFORCEASIDEWALLOFAPARTORBOSS支撐肋的設計亦可強化成品或BOSS的強度菜诱蓬腐卓涎轿钉腔啮磐戊窃滋阶燃芳炽知镇晚忽漏允苟渐蹋重拴座唁腥注塑完整版注塑完整版30TROUBLESHOOTINGBOSSBOSSDESIGNWITHPOSSIBLESINKMARKSVOIDSBOSS的不良設計會造成成品凹陷和孔洞出現IMPROVEDBOSSDESIGN改良式BOSS設計BOSSATTACHEDTOTHEWALLUSINGRIBSTHICKSECTIONSCOREDOUTFREESTANDINGBOSSWITHGUSSETS绦渐克参捷跺葛较稍公棺漂夹绑爹保嘴符误搽恶栓曳攫挝净裸樊毡挑敛酒注塑完整版注塑完整版31TROUBLESHOOTINGSINKMARK/凹陷痕BALANCEDDESIGNOFBOSS/平衡式BOSS設計犬兔誓顽盟峙酉花当递氰萍胜弊侗军募娩摹纺唾息碗荷逸魏层叙撬誊蒋瓤注塑完整版注塑完整版32TROUBLESHOOTINGCORNER轉角GOODDESIGN較佳設計INCORRECTDESIGN不良設計GENEROUSRADIUS圓弧半俓UNIFORMWALLTHICKNESS均一壁厚SMOOTHFLOWTRANSITION流動平順STRESSCONCENTRATIONSHARPFLOWRESTRICTION流動不順,應力集中NONUNIFORMWALLTHICKNESSSHRINKAGE/VOID/SINKSNONUNIFORMFLOW非均一壁厚,衍生翹曲/包封/凹陷/流動不順問題NONUNIFORMWALLTHICKNESSSHRINKAGE/VOID/SINKSNONUNIFORMFLOW非均一壁厚,衍生翹曲/包封/凹陷/流動不順問題待迂白乾足育忠朋钨绦扩噪密单荚必巴澡葬兰曹航酗应灶益俩寓畅茨乱兴注塑完整版注塑完整版33TROUBLESHOOTINGDESIGNFORASSEMBLY組裝設計IMPROVINGBOTHPRODUCTQUALITYANDREDUCINGMANUFACTURINGCOST改善成品品質和降低生產成本PRESSFITASSEMBLY扣壓式組合SELFFITASSEMBLYSNAPJOINT自動式組合連接卡筍MECHANICALFASTENINGTECHNIQUESSCREWS機械固定技術螺絲WELDINGTECHNIQUES結合技術ADHESIVEBONDING黏著性結合SOLVENTBONDING溶劑結合探滋汝蜘啡陵匈宗唯段思饿契隧皮延许切遗莲谊疲涩竿刺赡坷紊鼎凿疮沫注塑完整版注塑完整版34TROUBLESHOOTINGDESIGNFORASSEMBLY組裝設計SNAPJOINTASSEMBLY組裝連接卡筍須符合組裝和拆除的需求SATISFYBOTHDESIGNFORASSEMBLYANDDESIGNFORDISASSEMBLYSIMPLEMOSTVERSATILEMEANSOFPLASTICPRODUCTASSEMBLY利用簡易而通用的塑膠成品來組裝INSERTION崁入DEFLECTION偏差ELASTICRECOVERY彈性回覆RRLEADINANGLE導入角度泅座巴厦嗓甚态核舜太捞锻悲倦洛般荷伶荡萝撕屠舔蹋贤磅疗太托振待遇注塑完整版注塑完整版35TROUBLESHOOTINGSNAPFITASSEMBLY卡筍組裝設計SNAPJOINTASSEMBLY連接卡筍設計LRDYCANTILEVERSNAPBEAM懸臂樑卡筍CONSTANTRECTANGULARCROSSSECTION固定長方形橫截面DD/2TAPEREDCANTILEVERSNAPBEAM傾斜式懸臂樑卡筍DECREASINGDEPTHFROMDTOD/2降低深度由D到D/2Y067L2/DY11L2/DMAXIMUMTENSILESTRAIN最大張力PERMISSIBLEDEFLECTIONFORTHETAPEREDBEAMISABOUT60GREATERTHANTHATOFTHECONSTANTCROSSSECTIONOFRECTANGULARBEAM對於傾斜式懸臂樑比長方形允許變形度大約大60摈苫艘嘉艇廉填伪量座太候汤踪嘿尼撅茧股竟兑赌自亏烷离遵拂书评胚弓注塑完整版注塑完整版36TROUBLESHOOTINGSNAPFITASSEMBLY卡筍組裝設計SNAPJOINTASSEMBLY連接卡筍設計STRESSCONCENTRATIONATTHECORNERDEFLECTIONNEUTRALAXISRTAPPLIEDLOAD002040608101214101520253530RADIUS/WALLTHICKNESSR/TSTRESSCONCENTRATIONFACTORSTRESSCONCENTRATIONFACTORSSHOWTHATLARGERRADIUSVALUESTENDTOREDUCETHESTRESSCONCENTRATIONANDMOLDFILLINGORIENTATIONRELATEDPROBLEMS,HOWEVER,EXCESSIVERADIICANLEADTOCOMPLICATIONSDUETOSINKS,VOIDS,SHRINKAGESTRESS較大的半徑設計可以降低應力集中和改良填充的位向分佈，然而過大的半徑易會造成凹陷、包封和翹曲問題出現。奇误狞铡宙斜蒸迎乍酉峰烫膳此尧拖唬蟹行篱星懈尝祖邮刻捂诊本宫蚁尔注塑完整版注塑完整版37TROUBLESHOOTINGDESIGNFORASSEMBLY組裝設計MECHANICALFASTENERSCREW螺絲SCREWSPROVIDEASIMPLE,FAST,ANDEFFECTIVEMETHODOFJOININGSIMILARORDISSIMILARMATERIALS螺絲可提供一個簡單,快速而有效結合相似或相異材料的方法MACHINESCREWSIENUTSANDBOLTS機械螺絲螺絲與螺帽MACHINESCREWSWITHATHREADEDMETALINSERTSORMOLDEDTHREADS機械螺絲可利用成形崁入SELFTHREADINGSCREWS自攻螺絲翱喻草缴尸赎运扣懒迫裙陶除赶夯钥厚圭郸谭贷休舶载折绦真界瓤穴溜赌注塑完整版注塑完整版38TROUBLESHOOTINGDESIGNFORASSEMBLY組裝設計MECHANICALFASTENERSCREW機械式固定螺絲MACHINESCREWANDBOLT機械螺絲與螺帽在底部和頂面表面漂亮的遮斷物許多部份需要安裝在安裝中需從頭到尾需要鎖金屬片以免震鬆耐久的組裝MACHINESCREWANDINSERT機械螺絲與嵌入物一方可有光滑的表面比較少部份需要安裝嵌入物需在成型中或成型後嵌入BOSS中需要特別設備來嵌入持久耐用適於多次的組裝SELFTHREADINGSCREWANDPLASTICBOSS自攻螺絲與塑膠BOSS一方可有光滑的表面比較少部份需要安裝在安裝中形成緊密塑膠螺紋最少設備成本耐用度有限重覆安裝可能可以但次數有限嘎钮港寐煽歼篓啮糙妻魄垦南俄杠匣先零审拷德屹拎灰绪邦貉须症陪锣怠注塑完整版注塑完整版39TROUBLESHOOTINGSCREWASSEMBLY螺絲組裝SELFTHREADINGSCREW自攻螺紋絲規格大小與BOSS的設計是依據螺絲拉拔阻力鎖牙力要求與崩牙比例重覆組裝性力矩保持與震動阻抗對於BOSS組裝的環狀應力組裝的特性,如以退牙與鎖牙比例THROUGHCLEARANCEBOSSBLINDPILOTBOSS導盲柱RADIALCLEARANCE園隙MINORSCREW根徑MAJORSCREW外徑THREADDEPTH牙深THREADDEPTHUTILIZED有效深度PILOTHOLE導孔牛遥呻翰垢牡抨仇粉谆塞昂容哇距阉蛤城泻樱曙牵自罕锗酿损空柏俐陛颜注塑完整版注塑完整版40TROUBLESHOOTINGDESIGNFORASSEMBLY組裝設計SELFTHREADINGSCREW自攻螺絲SCREWENGAGEMENTTURNS螺絲嚙合轉數TORQUE力矩START鎖牙力矩最大的鎖牙力矩開始鎖緊不良破壞力矩鬆牙變形建議鎖緊力矩PRESTRESSCLAMPINGTORQUETYPICALTORQUEVSTURNSOFENGAGEMENTBEHAVIORFORASELFTHREADINGSCREWBEINGDRIVENINTOAPLASTICBOSS自攻螺絲鎖牙到進入塑膠BOSS的典型力矩與螺絲嚙合轉數圖捆斑锑摈望申君护孔肃洱厦醚康阴住挨腮秦鹿韶淬岗伐济忍寨郎卉烦活诧注塑完整版注塑完整版41TROUBLESHOOTINGSCREWASSEMBLY螺絲組裝SELFTHREADINGSCREW自攻螺紋LBLBSINKMARK縮水SHRINKAGEVOIDS收縮氣泡BLINDBOSS盲BOSSTHROUGHBOSS普通BOSSSELFTHREADINGSCREW自攻螺絲THECOREPINSTHATAREUSEDTOFORMTHEHOLESINBLINDBOSSESSHOULDBEEXTENDEDASMUCHASPOSSIBLETOCOREOUTEXCESSIVEMATERIALCOREPIN在形成盲BOSS位置時,應該僅量延伸讓盲BOSS挖空踪卫苛蚂词闭咬厄嚼酉谎拆砂戍亢诸呕椭疡庶造拘叼拼驴寅灾盘区痰搜里注塑完整版注塑完整版42TROUBLESHOOTINGSCREWASSEMBLY螺絲組裝SELFTHREADINGSCREW自攻螺紋LBLTLBLTLBLENGTHOFHOLEINTHEBLINDBOSSLTLENGTHOFHOLEINTHETHROUGHBOSS盲BOSS孔的長度普通BOSS孔的長度THEBLINDBOSSCOREPINLENGTHISREDUCEDTOMINIMIZETHEMOLDINGPROBLEMSASSOCIATEDWITHLONG,CANTILEVERCOREPINS盲BOSS孔的長度要減少,以降低懸臂樑PIN太長而衍生的成形問題么必劫巴索俏对剃撬搂愧愈秃昨邓慌姥摈悬因计湖爪护给确笨撂姬舀全级注塑完整版注塑完整版43TROUBLESHOOTINGDESIGNFORASSEMBLYSELFTHREADINGSCREW自攻螺紋SCREWENGAGEMENTTURNS螺絲嚙合轉數TORQUESTARTDRIVETORQUEMAXIMUMDRIVETORQUECLAMPINGSTARTSTIGHTENINGTORQUESTRIPPINGWIDESEPARATIONREDUCESRISKOFSTRIPPING鬆牙力矩最大鎖牙力矩41TORQUESCREWENGAGEMENTTURNS螺絲嚙合轉數STARTDRIVETORQUEMAXIMUMDRIVETORQUECLAMPINGSTARTSTIGHTENINGTORQUESTRIPPINGLIMITEDSEPARATION鬆牙力矩最大鎖牙力矩21低鬆牙/鎖牙比TORQUETURNCURVEFORASELFTHREADINGSCREWSHOWINGPOORSTRIP/DRIVETORQUERATIOLEFTANDHIGHSTRIP/DRIVETORQUERATIORIGHT自攻螺絲力矩曲線圖示低鬆牙/鎖牙力矩左圖,高鬆牙/鎖牙力矩左圖刹齿撵舟勤巍王粥柱痰薛建持如搓共播眷宗钠筑噬迫倘床脆廓孔选迄傅撵注塑完整版注塑完整版44TROUBLESHOOTINGDESIGNFORASSEMBLY組裝設計SELFTHREADINGSCREW自攻螺紋TORQUE力矩TURNSOFENGAGEMENT嚙合的轉數CORRECTPILOTHOLEDIAMETER正確導孔半徑OVERSIZEDPILOTHOLEDIAMETER過大的導孔半徑UNDERSIZEDPILOTHOLEDIAMETER過小的導孔半徑高鬆牙力/鎖牙力比高鬆牙力矩高鬆牙力/鎖牙力比BUT低鬆牙力矩高鬆牙力矩BUT低鬆牙力/鎖牙力比咀这虐丝澜猴丽霓巡渗酥宵赎贮匙风民颤茫御藐韩颜辐闽尝浦挫宣辩稿桂注塑完整版注塑完整版45TROUBLESHOOTINGDESIGNFORASSEMBLY組裝設計SELFTHREADINGSCREW自攻螺紋0100200300400500005006007008009010011012013014BOSS肉厚INCHESFAILURELOADINTENSIONLBS張力荷重螺絲拉開螺絲拉開螺絲拉開BOSS崩裂BOSS崩裂18轉鎖模力27轉鎖模力36轉鎖模力PP共聚塑膠6BT自攻螺絲0114”導孔直徑60有效深度TENSILESCREWPULLOUTRESULTSFORATYPEBTSCREWANDAPOLYPROPYLENEBOSS對於BT型螺絲應用到PP塑膠的拉開張力強度圖解葱皆言额尖瘤歼旦龋帽帽拂秃堆赚丸湃袄港躇秃舔创铆漾挡恭绝饺兄巨驯注塑完整版注塑完整版46TROUBLESHOOTINGPARTEJECTIONDRAFTANGLE成品頂出設計角度CAVITY母模CORE公模DRAFTANGLE脫模角度1/21O152OFORFIBERREINFORCEDPOLYMERS加纖維的材料角度要152O肘爵孰育沼链戮幸韦耍籽奶钵瓣幸屁猎由掩楼帛轰砂垄然辛组飞扶沿溪肚注塑完整版注塑完整版47TROUBLESHOOTINGRUNNER/流道圓形流道讓材料產生最大流動和最小的冷卻效果梯型流道具全圓與半圓的平衡特性梯型流道適用於三板模模具半圓形流道提供最大流動量與最大冷卻效果,但不適合射出成形置析滥睡欺诛浑氧叁兑潭驰咎锅象蝴嘴喂空雀禽温伊灯厨祖蛰随函迄佃锯注塑完整版注塑完整版48TROUBLESHOOTINGRUNNER/流道L15DDLDD6MM,ATL250MMD6MM,ATL04RCAVITYRUNNERLTTD挣疵钓娶透县冕岛黑卢岳断培梗榆舰里锤琴糖捕粳纫彬缺基闽少挖阉素传注塑完整版注塑完整版52TROUBLESHOOTINGGATEOVERLAPGATE澆口重疊式澆口L1020MML1WWHX2WLL1H澡遁酋诉鹰侧证英擅冷脚难赶凝喂屯垂格九讳泌彼寅摄皖锌肚窝罐哩库虞注塑完整版注塑完整版53TROUBLESHOOTINGSINKMARK/凹陷DIFFERENTWALLTHICKNESSREDUCETHICKNESSINTHICKSECTIONTOOSMALLSPRUCE,RUNNER,GATESIZEINCREASESPRUCE,RUNNER,GATESIZETOOLOWINJECTIONHOLDINGPRESSUREINCREASEINJECTIONHOLDINGPRESSURETOOHIGHMOLDINGTEMPREDUCECYLINDERMOLDTEMPINSUFFICIENTANDNONUNIFORMCOOLINGOFMOLDCHECKTHECOOLINGSYSTEMNOTENOUGHFEEDINCREASEMATERIALCHARGECORRECTSWITCHOVERCUSHION酸哉截痈档臀窄穷段耙宅走伴寒祸像扶财阂井不侗贱罚壁化碱苏顺抛界侄注塑完整版注塑完整版54TROUBLESHOOTINGCRACK/龜裂CONCENTRATEDSTRESSINSHARPCORNERAVOIDSHARPCORNERR/T05THINWALLTHICKNESSINCREASEWALLTHICKNESSRESIDUALSTRESSBYOVERPACKINGREDUCEINJECTIONPRESSURE,HOLDINGPRESSUREANDTIMERESIDUALSTRESSBYINSUFFICIENTFLOWINCREASEMELTANDMOLDTEMPIMPROPERMOLDRELEASEINCREASETAPERREMOVEUNDERCUTSPOLISHMOLDSURFACEWELDLINERELOCATEWELDLINEENVIRONMENTALSTRESSCRACKAVOIDSPECIALCHEMICALCONTACTUSESCRMATERIAL颈酋淆吧挥呜趁柬芍穷迹角缀青曲给思氖我里佐趟郎囱眺浊腻傲也孕坷芽注塑完整版注塑完整版55TROUBLESHOOTINGPEELING/剝皮INCOMPATIBLEMATERIALCLEANTHECYLINDERANDHOPPERIMPROPERMOLDINGCONDITIONINCREASEMELTANDMOLDTEMPEXCESSIVEUSEOFLUBRICANTPROPERUSEOFLUBRICANTTOOSMALLGATESIZEINCREASEGATESIZE硷噪殷搏剁心简滓阀诌祖历喊侵弱吝撑地趴暑因洪暂包嘎伎颈皆砾拟晃霉注塑完整版注塑完整版56TROUBLESHOOTINGFLASHBURR/毛邊INSUFFICIENTCLAMPPRESSUREINCREASECLAMPPRESSURETOOHIGHINJECTIONVELOCITYREDUCEINJECTIONVELOCITYTOOHIGHINJECTIONPRESSUREREDUCEINJECTIONPRESSUREESPECIALLYINITIALHOLDINGPRESSUREEXCESSIVEFEEDREDUCEFEEDCONTAMINATIONINMOLDSURFACECLEANTHEMOLDSURFACETOOHIGHMELTTEMPREDUCEMELTTEMPPOORPARTINGLINECHECKPARTINGLINE及壶推瘪喇汐妮避第靖乾击必蹲宣拍尽络京鬼教缘慷标郁凄蹈瞬衣盈顾彩注塑完整版注塑完整版57TROUBLESHOOTI