注塑系統及成型工藝流程、參數

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所屬分類:注塑文章

?一、注塑系統

注塑系統及成型工藝流程、參數

  1. 注塑機

zhusujiyoumingzhushechengxingjihuozhusheji。tashijiangresuxingsuliaohuoreguxingsuliaoliyongsuliaochengxingmojuzhichenggezhongxingzhuangdesuliaozhipindezhuyaochengxingshebei。fenweilishi、woshi、quandianshi。zhusujinengjiaresuliao,duirongrongsuliaoshijiagaoya,shiqishechuerchongmanmojuxingqiang。zhusujitongchangyouzhushexitong、hemoxitong、yeyachuandongxitong、dianqikongzhixitong、runhuaxitong、jiarejilengquexitong、anquanjiancexitongdengzucheng。

2. zhushexitong

zhushexitongdezuoyong:zhushexitongshizhusujizuizhuyaodezuchengbufenzhiyi,yibanyouzhusaishi、luoganshi、luoganyusuzhusaizhusheshi3zhongzhuyaoxingshi。muqianyingyongzuiguangfandeshiluoganshi。qizuoyongshi,zaizhusuliaojideyigexunhuanzhong,nengzaiguidingdeshijianneijiangyidingshuliangdesuliaojiaresuhuahou,zaiyidingdeyalihesuduxia,tongguoluoganjiangrongrongsuliaozhurumojuxingqiangzhong。zhushejieshuhou,duizhushedaomoqiangzhongderongliaobaochidingxing。

zhushexitongdezucheng:zhushexitongyousuhuazhuangzhihedonglichuandizhuangzhizucheng。

luoganshizhusujisuhuazhuangzhizhuyaoyoujialiaozhuangzhi、liaotong、luogan、guojiaozujian、shezuibufenzucheng。donglichuandizhuangzhibaokuozhusheyougang、zhushezuoyidongyougangyijiluoganqudongzhuangzhi(rongjiaomada)。

3. hemoxitong

hemoxitongdezuoyong:hemoxitongdezuoyongshibaozhengmojubihe、kaiqijidingchuzhipin。tongshi,zaimojubihehou,gonggeimojuzugoudesuomoli,yidikangrongrongsuliaojinrumoqiangchanshengdemoqiangyali,fangzhimojukaifeng,zaochengzhipindebuliangxianzhuang。

hemoxitongdezucheng:hemoxitongzhuyaoyouhemozhuangzhi、jijiao、diaomojigou、dingchujigou、qianhougudingmoban、yidongmoban、hemoyougangheanquanbaohujigouzucheng。

4. yeyaxitong

yeyachuandongxitongdezuoyongshishixianzhusujiangongyiguochengsuoyaoqiudegezhongdongzuotigongdongli,bingmanzuzhusujigebufensuoxuyali、sudu、wendudengdeyaoqiu。tazhuyaoyougezizhongyeyayuanjianheyeyafuzhuyuanjiansuozucheng,qizhongyoubenghedianjishizhusujidedonglilaiyuan。gezhongfakongzhiyouyeyaliheliuliang,congermanzuzhushechengxinggongyigexiangyaoqiu。

5. dianqikongzhi

dianqikongzhixitongyuyeyaxitonghelipeihe,keshixianzhushejidegongyiguochengyaoqiu(yali、wendu、sudu、shijian)hegezhongchengxudongzuo。zhuyaoyoudianqi、dianziyuanjian、yibiao(jianyouxiatu)、jiareqi、chuanganqidengzucheng。yibanyousizhongkongzhifangshi,shoudong、banzidong、quanzidong、diaozheng。

6. jiare/lengque

jiarexitongshiyonglaijiareliaotongjizhushepenzuide,zhusujiliaotongyibancaiyongdianrequanzuoweijiarezhuangzhi,anzhuangzailiaotongdewaibu,bingyongredianoufenduanjiance。reliangtongguotongbidaoreweiwuliaosuhuatigongreyuan;lengquexitongzhuyaoshiyonglailengqueyouwen,youwenguogaohuiyinqiduozhongguzhangchuxiansuoyiyouwenbixujiayikongzhi。lingyichuxuyaolengquedeweizhizailiaoguanxialiaokoufujin,fangzhiyuanliaozaixialiaokouronghua,daozhiyuanliaobunengzhengchangxialiao。

7. runhuaxitong

runhuaxitongshizhusujidedongmoban、diaomozhuangzhi、lianganjijiao、shetaidengchuyouxiangduiyundongdebuweitigongrunhuatiaojiandehuilu,yibianjianshaonenghaohetigaolingjianshouming,runhuakeyishidingqideshoudongrunhua,yekeyishizidongdiandongrunhua;

8. anquanjiance

zhusujideanquanzhuangzhizhuyaoshiyonglaibaohuren、jianquandezhuangzhi。zhuyaoyouanquanmen、anquandangban、yeyafa、xianweikaiguan、guangdianjianceyuanjiandengzucheng,shixiandianqi——jixie——yeyadeliansuobaohu。

jiancexitongzhuyaoduizhusujideyouwen、liaowen、xitongchaozai,yijigongyiheshebeiguzhangjinxingjiance,faxianyichangqingkuangjinxingzhishihuobaojing。

二、注塑流程

sujiandezhusuchengxinggongyiguochengzhuyaobaokuotianchong——baoya——lengque——tuomodeng4gejieduan,zhe4gejieduanzhijiejuedingzhuzhipindechengxingzhiliang,erqiezhe4gejieduanshiyigewanzhengdelianxuguocheng。

注塑系統及成型工藝流程、參數

1.tianchongjieduan

tianchongshizhenggezhusuxunhuanguochengzhongdediyibu,shijiancongmojubihekaishizhususuanqi,daomojuxingqiangtianchongdaodayue95%weizhi。lilunshang,tianchongshijianyueduan,chengxingxiaolvyuegao,danshishijizhong,chengxingshijianhuozhezhususuduyaoshoudaohenduotiaojiandezhiyue。

gaosutianchong。gaosutianchongshijianqielvjiaogao,suliaoyouyujianqiebianxidezuoyongercunzaizhanduxiajiangdeqingxing,shizhengtiliudongzulijiangdi;jubudezhanzhijiareyingxiangyehuishiguhuacenghoudubianbo。yincizailiudongkongzhijieduan,tianchongxingweiwangwangqujueyudaitianchongdetijidaxiao。jizailiudongkongzhijieduan,youyugaosutianchong,rongtidejianqiebianxixiaoguowangwanghenda,erbobidelengquezuoyongbingbumingxian,yushisulvdexiaoyongzhanleshangfeng。

disutianchong。rechuandaokongzhidisutianchongshi,jianqielvjiaodi,jubuzhandujiaogao,liudongzulijiaoda。youyuresuliaobuchongsulvjiaoman,liudongjiaoweihuanman,shirechuandaoxiaoyingjiaoweimingxian,reliangxunsuweilengmobidaizou。jiashangjiaoshaoliangdezhanzhijiarexianxiang,guhuacenghoudujiaohou,youjinyibuzengjiabibujiaobochudeliudongzuli。

youyupenquanliudongdeyuanyin,zailiudongboqianmiandesuliaogaofenzilianpaixiangjihupingxingliudongboqian。yincilianggusuliaorongjiaozaijiaohuishi,jiechumiandegaofenzilianhuxiangpingxing;jiashanglianggurongjiaoxingzhigeyi(zaimoqiangzhongzhiliushijianbutong,wendu、yaliyebutong),zaochengrongjiaojiaohuiquyuzaiweiguanshangjiegouqiangdujiaocha。

zaiguangxianxiajianglingjianbaifangshidangdejiaoduyongrouyanguancha,keyifaxianyoumingxiandejiehexianchansheng,zhejiushirongjiehendexingchengjili。rongjiehenbujinyingxiangsujianwaiguan,tongshiyouyuweiguanjiegoudesongsan,yizaochengyinglijizhong,congershidegaibufendeqiangdujiangdierfashengduanlie。

yibaneryan,zaigaowenquchanshengrongjiederongjiehenqiangdujiaojia,yinweigaowenqingxingxia,gaofenzilianhuodongxingjiaojia,keyihuxiangchuantouchanrao,ciwaigaowenduquyulianggurongtidewendujiaoweijiejin,rongtiderexingzhijihuxiangtong,zengjialerongjiequyudeqiangdu;fanzhizaidiwenquyu,rongjieqiangdujiaocha。

2.baoyajieduan

baoyajieduandezuoyongshichixushijiayali,yashirongti,zengjiasuliaomidu(zengmi),yibuchangsuliaodeshousuoxingwei。zaibaoyaguochengzhong,youyumoqiangzhongyijingtianmansuliao,beiyajiaogao。zaibaoyayashiguochengzhong,zhusujiluoganjinnengmanmandixiangqianzuoweixiaoyidong,suliaodeliudongsuduyejiaoweihuanman,zheshideliudongchengzuobaoyaliudong。

youyuzaibaoyajieduan,suliaoshoumobilengqueguhuajiakuai,rongtizhanduzengjiayehenkuai,yincimojuxingqiangneidezulihenda。zaibaoyadehouqi,cailiaomiduchixuzengda,sujianyezhujianchengxing,baoyajieduanyaoyizhichixudaojiaokouguhuafengkouweizhi,cishibaoyajieduandemoqiangyalidadaozuigaozhi。

zaibaoyajieduan,youyuyalixiangdanggao,suliaochengxianbufenkeyasuotexing。zaiyalijiaogaoquyu,suliaojiaoweimishi,midujiaogao;zaiyalijiaodiquyu,suliaojiaoweishusong,midujiaodi,yincizaochengmidufenbusuiweizhijishijianfashengbianhua。baoyaguochengzhongsuliaoliusujidi,liudongbuzaiqizhudaozuoyong;yaliweiyingxiangbaoyaguochengdezhuyaoyinsu。

baoyaguochengzhongsuliaoyijingchongmanmoqiang,cishizhujianguhuaderongtizuoweichuandiyalidejiezhi。moqiangzhongdeyalijiezhusuliaochuandizhimobibiaomian,youchengkaimojudequshi,yincixuyaoshidangdesuomolijinxingsuomo。zhangmolizaizhengchangqingxingxiahuiweiweijiangmojuchengkai,duiyumojudepaiqijuyoubangzhuzuoyong;danruozhangmoliguoda,yizaochengchengxingpinmaobian、yiliao,shenzhichengkaimoju。yincizaixuanzezhusujishi,yingxuanzejuyouzugoudasuomolidezhusuji,yifangzhizhangmoxianxiangbingnengyouxiaojinxingbaoya。

3.lengquejieduan

zaizhusuchengxingmojuzhong,lengquexitongdeshejifeichangzhongyao。zheshiyinweichengxingsuliaozhipinzhiyoulengqueguhuadaoyidinggangxing,tuomohoucainengbimiansuliaozhipinyinshoudaowailierchanshengbianxing。youyulengqueshijianzhanzhenggechengxingzhouqiyue70%~80%,yincishejilianghaodelengquexitongkeyidafusuoduanchengxingshijian,tigaozhusushengchanlv,jiangdichengben。

shejibudangdelengquexitonghuishichengxingshijianlachang,zengjiachengben;lengquebujunyungenghuijinyibuzaochengsuliaozhipindeqiaoqubianxing。

genjushiyan,yourongtijinrumojudereliangdatifenliangbufensanfa,yibufenyou5%jingfushe、duiliuchuandidaodaqizhong,qiyu95%congrongtichuandaodaomoju。suliaozhipinzaimojuzhongyouyulengqueshuiguandezuoyong,reliangyoumoqiangzhongdesuliaotongguorechuandaojingmojiachuanzhilengqueshuiguan,zaitongguoreduiliubeilengqueyedaizou。shaoshuweibeilengqueshuidaizoudereliangzejixuzaimojuzhongchuandao,zhijiechuwaijiehousanyiyukongqizhong。

zhusuchengxingdechengxingzhouqiyouhemoshijian、chongtianshijian、baoyashijian、lengqueshijianjituomoshijianzucheng。qizhongyilengqueshijiansuozhanbizhongzuida,dayuewei70%~80%。yincilengqueshijianjiangzhijieyingxiangsuliaozhipinchengxingzhouqichangduanjichanliangdaxiao。tuomojieduansuliaozhipinwenduyinglengquezhidiyusuliaozhipinderebianxingwendu,yifangzhisuliaozhipinyincanyuyinglidaozhidesongchixianxianghuotuomowailisuozaochengdeqiaoqujibianxing。

yingxiangzhipinlengquesulvdeyinsuyou:

suliaozhipinshejifangmian。zhuyaoshisuliaozhipinbihou。zhipinhouduyueda,lengqueshijianyuechang。yibaneryan,lengqueshijianyueyusuliaozhipinhoududepingfangchengzhengbi,huoshiyuzuidaliudaozhijingde1.6cifangchengzhengbi。jisuliaozhipinhoudujiabei,lengqueshijianzengjia4bei。

mojucailiaojiqilengquefangshi。mojucailiao,baokuomojuxingxin、xingqiangcailiaoyijimojiacailiaoduilengquesududeyingxianghenda。mojucailiaorechuandaoxishuyuegao,danweishijianneijiangreliangcongsuliaochuandierchudexiaoguoyuejia,lengqueshijianyeyueduan。

lengqueshuiguanpeizhifangshi。lengqueshuiguanyuekaojinmoqiang,guanjingyueda,shumuyueduo,lengquexiaoguoyuejia,lengqueshijianyueduan。

lengqueyeliuliang。lengqueshuiliuliangyueda(yibanyidadaowenliuweijia),lengqueshuiyireduiliufangshidaizoureliangdexiaoguoyeyuehao。

冷卻液的性質。冷卻液的粘度及熱傳導系數也會影響到模具的熱傳導效果。
冷卻液粘度越低,熱傳導系數越高,溫度越低,冷卻效果越佳。

塑料選擇。塑料的是指塑料將熱量從熱的地方向冷的地方傳導速度的量度。
塑料熱傳導系數越高,代表熱傳導效果越佳,或是塑料比熱低,溫度容易發生變化,因此熱量容易散逸,熱傳導效果較佳,所需冷卻時間較短。

jiagongcanshusheding。liaowenyuegao,mowenyuegao,dingchuwenduyuedi,suoxulengqueshijianyuechang。

lengquexitongdeshejiguize:

所設計的冷卻通道要保證冷卻效果均勻而迅速。
設計冷卻系統的目的在于維持模具適當而有效率的冷卻。冷卻孔應使用標準尺寸,以方便加工與組裝。

shejilengquexitongshi,mojushejizhebixugenjusujiandebihouyutijijuedingxialieshejicanshu——lengquekongdeweizhiyuchicun、kongdechangdu、kongdezhonglei、kongdepeizhiyulianjieyijilengqueyedeliudongsulvyuchuanrexingzhi。

4.tuomojieduan

tuomoshiyigezhusuchengxingxunhuanzhongdezuihouyigehuanjie。suiranzhipinyijinglengguchengxing,dantuomohuanshiduizhipindezhiliangyouhenzhongyaodeyingxiang,tuomofangshibudang,kenenghuidaozhichanpinzaituomoshishoulibujun,dingchushiyinqichanpinbianxingdengquexian。tuomodefangshizhuyaoyouliangzhong:dinggantuomohetuoliaobantuomo。shejimojushiyaogenjuchanpindejiegoutedianxuanzeheshidetuomofangshi,yibaozhengchanpinzhiliang。

duiyuxuanyongdinggantuomodemoju,dinggandeshezhiyingjinliangjunyun,bingqieweizhiyingxuanzaituomozulizuidayijisujianqiangduhegangduzuidadedifang,yimiansujianbianxingsunhuai。

ertuoliaobanzeyibanyongyushenqiangbobirongqiyijibuyunxuyoutuiganhenjidetoumingzhipindetuomo,zhezhongjigoudetedianshituomolidaqiejunyun,yundongpingwen,wumingxiandeyiliuhenji。

三、注塑工藝參數

1.zhusuyali

zhusuyalishiyouzhusuxitongdeyeyaxitongtigongde。yeyagangdeyalitongguozhusujiluoganchuandidaosuliaorongtishang,suliaorongtizaiyalidetuidongxia,jingzhusujidepenzuijinrumojudeshuliudao(duiyubufenmojulaishuoyeshizhuliudao)、zhuliudao、fenliudao,bingjingjiaokoujinrumojuxingqiang,zhegeguochengjiweizhusuguocheng,huozhechengzhiweitianchongguocheng。yalidecunzaishiweilekefurongtiliudongguochengzhongdezuli,huozhefanguolaishuo,liudongguochengzhongcunzaidezulixuyaozhusujideyalilaidixiao,yibaozhengtianchongguochengshunlijinxing。

zaizhusuguochengzhong,zhusujipenzuichudeyalizuigao,yikefurongtiquanchengzhongdeliudongzuli。qihou,yaliyanzhuliudongchangduwangrongtizuiqianduanboqianchuzhubujiangdi,ruguomoqiangneibupaiqilianghao,zerongtiqianduanzuihoudeyalijiushidaqiya。

yingxiangrongtitianchongyalideyinsuhenduo,gaikuoqilaiyou3lei:

(1)cailiaoyinsu,rusuliaodeleixing、zhandudeng;

(2)jiegouxingyinsu,rujiaozhuxitongdeleixing、shumuheweizhi,mojudexingqiangxingzhuangyijizhipindehoududeng;

(3)chengxingdegongyiyaosu。

2.zhusushijian

zhelisuoshuodezhusushijianshizhisuliaorongtichongmanxingqiangsuoxuyaodeshijian,bubaokuomojukai、hedengfuzhushijian。jinguanzhusushijianhenduan,duiyuchengxingzhouqideyingxiangyehenxiao,danshizhusushijiandediaozhengduiyujiaokou、liudaohexingqiangdeyalikongzhiyouzhuhendazuoyong。helidezhusushijianyouzhuyurongtilixiangtianchong,erqieduiyutigaozhipindebiaomianzhiliangyijijianxiaochicungongchayouzhufeichangzhongyaodeyiyi。

zhusushijianyaoyuanyuandiyulengqueshijian,dayueweilengqueshijiande1/10~1/15,zhegeguilvkeyizuoweiyucesujianquanbuchengxingshijiandeyiju。zaizuomoliufenxishi,zhiyoudangrongtiwanquanshiyouluoganxuanzhuantuidongzhumanxingqiangdeqingkuangxia,fenxijieguozhongdezhusushijiancaidengyugongyitiaojianzhongshedingdezhusushijian。ruguozaixingqiangchongmanqianfashengluogandebaoyaqiehuan,neimefenxijieguojiangdayugongyitiaojiandesheding。

3.zhusuwendu

zhusuwendushiyingxiangzhusuyalidezhongyaoyinsu。zhusujiliaotongyou5~6gejiareduan,meizhongyuanliaodouyouqiheshidejiagongwendu(xiangxidejiagongwendukeyicanyuecailiaogongyingshangtigongdeshuju)。zhusuwendubixukongzhizaiyidingdefanweinei。wendutaidi,rongliaosuhuabuliang,yingxiangchengxingjiandezhiliang,zengjiagongyinandu;wendutaigao,yuanliaorongyifenjie。

zaishijidezhusuchengxingguochengzhong,zhusuwenduwangwangbiliaotongwendugao,gaochudeshuzhiyuzhususulvhecailiaodexingnengyouguan,zuigaokeda30℃。zheshiyouyurongliaotongguozhuliaokoushishoudaojianqieerchanshenghengaodereliangzaochengde。zaizuomoliufenxishikeyitongguoliangzhongfangshilaibuchangzhezhongchazhi,yizhongshishefaceliangrongliaoduikongzhusushidewendu,lingyizhongshijianmoshijiangshezuiyebaohanjinqu。

4.baoyayaliyushijian

zaizhusuguochengjiangjinjieshushi,luogantingzhixuanzhuan,zhishixiangqiantuijin,cishizhusujinrubaoyajieduan。baoyaguochengzhongzhusujidepenzuibuduanxiangxingqiangbuliao,yitianchongyouyuzhijianshousuoerkongchuderongji。ruguoxingqiangchongmanhoubujinxingbaoya,zhijiandayuehuishousuo25%zuoyou,tebieshijinchuyouyushousuoguodaerxingchengshousuohenji。baoyayaliyibanweichongtianzuidayalide85%zuoyou,dangranyaogenjushijiqingkuanglaiqueding。

5.beiya

beiyashizhiluoganfanzhuanhoutuichuliaoshisuoxuyaokefudeyali。caiyonggaobeiyayouliyuseliaodefensanhesuliaoderonghua,danquetongshiyanchangleluoganhuisuoshijian,jiangdilesuliaoxianweidechangdu,zengjialezhusujideyali,yincibeiyayinggaidiyixie,yibanbuchaoguozhusuyalide20%。

zhusupaomosuliaoshi,beiyayinggaibiqitixingchengdeyaligao,fouzeluoganhuibeituichuliaotong。youxiezhusujikeyijiangbeiyabiancheng,yibuchangronghuaqijianluoganchangdudesuojian,zheyanghuijiangdishurureliang,lingwenduxiajiang。buguoyouyuzhezhongbianhuadejieguonanyiguji,gubuyiduijiqizuochuxiangyingdediaozheng。

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