關于鄭州模具分類8
發表時間:2020-05-11 14:26 塑料注射(塑)模具。它主要(yao)是熱(re)塑(su)(su)(su)性(xing)塑(su)(su)(su)料(liao)(liao)件產品(pin)(pin)生(sheng)產中應用(yong)較為(wei)普遍的(de)一(yi)種成型(xing)(xing)(xing)模(mo)具,塑(su)(su)(su)料(liao)(liao)注(zhu)(zhu)射(she)(she)模(mo)具對應的(de)加工(gong)(gong)(gong)設備是塑(su)(su)(su)料(liao)(liao)注(zhu)(zhu)射(she)(she)成型(xing)(xing)(xing)機(ji),塑(su)(su)(su)料(liao)(liao)首先在(zai)注(zhu)(zhu)射(she)(she)機(ji)底(di)加熱(re)料(liao)(liao)筒內(nei)受熱(re)熔融,然后在(zai)注(zhu)(zhu)射(she)(she)機(ji)的(de)螺桿或(huo)柱(zhu)塞推動(dong)下(xia),經注(zhu)(zhu)射(she)(she)機(ji)噴嘴(zui)和模(mo)具的(de)澆注(zhu)(zhu)系(xi)統(tong)進入模(mo)具型(xing)(xing)(xing)腔,塑(su)(su)(su)料(liao)(liao)冷卻硬化成型(xing)(xing)(xing),脫模(mo)得到制品(pin)(pin)。其結構通(tong)常(chang)由成型(xing)(xing)(xing)部件、澆注(zhu)(zhu)系(xi)統(tong)、導向(xiang)部件、推出(chu)機(ji)構、調溫系(xi)統(tong)、排氣系(xi)統(tong)、支撐部件等部分(fen)組成。制造材料(liao)(liao)通(tong)常(chang)采用(yong)塑(su)(su)(su)料(liao)(liao)模(mo)具鋼(gang)模(mo)塊,常(chang)用(yong)的(de)材質主要(yao)為(wei)碳素(su)(su)結構鋼(gang)、碳素(su)(su)工(gong)(gong)(gong)具鋼(gang)、合金工(gong)(gong)(gong)具鋼(gang),高速鋼(gang)等。注(zhu)(zhu)射(she)(she)成型(xing)(xing)(xing)加工(gong)(gong)(gong)方式通(tong)常(chang)只適用(yong)于熱(re)塑(su)(su)(su)料(liao)(liao)品(pin)(pin)的(de)制品(pin)(pin)生(sheng)產,用(yong)注(zhu)(zhu)射(she)(she)成型(xing)(xing)(xing)工(gong)(gong)(gong)藝生(sheng)產的(de)塑(su)(su)(su)料(liao)(liao)制品(pin)(pin)十分(fen)廣泛,從生(sheng)活(huo)日(ri)用(yong)品(pin)(pin)到各(ge)類復雜的(de)機(ji)械,電器、交(jiao)通(tong)工(gong)(gong)(gong)具零件等都是用(yong)注(zhu)(zhu)射(she)(she)模(mo)具成型(xing)(xing)(xing)的(de),它是塑(su)(su)(su)料(liao)(liao)制品(pin)(pin)生(sheng)產中應用(yong)較廣的(de)一(yi)種加工(gong)(gong)(gong)方法。 塑(su)料(liao)壓塑(su)模具(ju),包括壓縮(suo)成(cheng)(cheng)(cheng)型(xing)和壓注成(cheng)(cheng)(cheng)型(xing)兩種結構模具(ju)類(lei)型(xing)。它(ta)們是主要用(yong)來成(cheng)(cheng)(cheng)型(xing)熱(re)(re)固性塑(su)料(liao)的(de)一類(lei)模具(ju),其所對應的(de)設備(bei)是壓力(li)成(cheng)(cheng)(cheng)型(xing)機。壓縮(suo)成(cheng)(cheng)(cheng)型(xing)方法(fa)根據塑(su)料(liao)特(te)性,將模具(ju)加(jia)熱(re)(re)至(zhi)成(cheng)(cheng)(cheng)型(xing)溫(wen)度(一般在103—108),然后將計量(liang)好的(de)壓塑(su)粉放入模具(ju)型(xing)腔(qiang)和加(jia)料(liao)室,閉合(he)模具(ju),塑(su)料(liao)在高(gao)熱(re)(re),高(gao)壓作用(yong)下呈(cheng)軟化粘流,經(jing)一定時(shi)間后固化定型(xing),成(cheng)(cheng)(cheng)為所需制品形(xing)狀(zhuang)。 塑料擠出模具,用來成型生產連續形狀的塑料產品的一類模具,又叫擠出成型機頭,廣泛用于管材、棒材、單絲、板材、薄膜、電線電纜包覆層、異型材等的加工。與其對應的生產設備是塑料擠出機,其原理是固態塑料在加熱和擠出機的螺桿旋轉加壓條件下熔融,塑化,通過特定形狀的口模而制成截面與口模形狀相同的連續塑料制品。其制造材料主要有碳素結構鋼、合金工具等,有些擠出模具在需要耐磨的部件上還會鑲嵌金剛石等耐磨材料。擠出中工工藝通常只適用熱塑性塑料品制品的生產,其在結構上與注塑模具和壓塑模具有明顯區別。 塑(su)(su)(su)(su)料(liao)吹(chui)(chui)塑(su)(su)(su)(su)模具,是用(yong)來成(cheng)(cheng)(cheng)型(xing)塑(su)(su)(su)(su)料(liao)容器(qi)類中(zhong)(zhong)空(kong)制品(pin)(如飲料(liao)瓶、日化用(yong)品(pin)等(deng)各(ge)種(zhong)包裝容器(qi))的(de)一種(zhong)模具,吹(chui)(chui)塑(su)(su)(su)(su)成(cheng)(cheng)(cheng)型(xing)的(de)形(xing)式按工藝原理主要有擠出吹(chui)(chui)塑(su)(su)(su)(su)中(zhong)(zhong)空(kong)成(cheng)(cheng)(cheng)型(xing)、注射(she)吹(chui)(chui)塑(su)(su)(su)(su)中(zhong)(zhong)空(kong)成(cheng)(cheng)(cheng)型(xing)、注射(she)延伸吹(chui)(chui)塑(su)(su)(su)(su)中(zhong)(zhong)空(kong)成(cheng)(cheng)(cheng)型(xing)(俗(su)稱“注拉吹(chui)(chui)”),多層(ceng)吹(chui)(chui)塑(su)(su)(su)(su)中(zhong)(zhong)空(kong)成(cheng)(cheng)(cheng)型(xing),片(pian)材(cai)吹(chui)(chui)塑(su)(su)(su)(su)中(zhong)(zhong)空(kong)成(cheng)(cheng)(cheng)型(xing)等(deng)。中(zhong)(zhong)空(kong)制品(pin)吹(chui)(chui)塑(su)(su)(su)(su)成(cheng)(cheng)(cheng)型(xing)所對應的(de)設備通常稱為(wei)(wei)塑(su)(su)(su)(su)料(liao)吹(chui)(chui)塑(su)(su)(su)(su)成(cheng)(cheng)(cheng)型(xing)機,吹(chui)(chui)塑(su)(su)(su)(su)成(cheng)(cheng)(cheng)型(xing)只適用(yong)于熱(re)塑(su)(su)(su)(su)料(liao)品(pin)種(zhong)制品(pin)的(de)生產。吹(chui)(chui)塑(su)(su)(su)(su)模具結構較為(wei)(wei)簡單,所用(yong)材(cai)料(liao)多以碳素多則制造。 塑料(liao)吸塑模(mo)具(ju),是以塑料(liao)板、片材為原(yuan)(yuan)料(liao)成(cheng)(cheng)型某些較簡(jian)單(dan)塑料(liao)制品的一(yi)種模(mo)具(ju),其原(yuan)(yuan)理是利用抽真空盛開方(fang)法或壓縮空氣成(cheng)(cheng)型方(fang)法使固定(ding)在凹模(mo)或凸(tu)模(mo)上的塑料(liao)板、片,在加熱軟(ruan)化(hua)的情況下變(bian)形而貼在模(mo)具(ju)的型腔上得到所(suo)需(xu)成(cheng)(cheng)型產品,主要用于一(yi)些日(ri)用品、食品、玩具(ju)類包裝(zhuang)制品生產方(fang)面(mian)。吸塑模(mo)具(ju)因成(cheng)(cheng)型時壓力(li)較低,所(suo)以模(mo)具(ju)材料(liao)多選用鑄鋁或非(fei)金屬材料(liao)制造,結構較為簡(jian)單(dan)。 高發泡(pao)(pao)聚(ju)(ju)苯(ben)乙烯(xi)成(cheng)(cheng)(cheng)型模具(ju)。是(shi)應用(yong)可發性聚(ju)(ju)苯(ben)乙烯(xi)(由聚(ju)(ju)苯(ben)乙烯(xi)和發泡(pao)(pao)劑組成(cheng)(cheng)(cheng)的(de)珠狀料)原料來成(cheng)(cheng)(cheng)型各(ge)種所需形狀的(de)泡(pao)(pao)沫(mo)(mo)塑料包(bao)裝材料的(de)一種模具(ju)。其原理是(shi)可發聚(ju)(ju)苯(ben)乙烯(xi)在模具(ju)內能入蒸汽(qi)成(cheng)(cheng)(cheng)型,包(bao)括簡易手(shou)工(gong)操作模具(ju)和液壓(ya)機直通式泡(pao)(pao)沫(mo)(mo)塑料模具(ju)兩種類(lei)型,主(zhu)要用(yong)來生產(chan)工(gong)業品方面的(de)包(bao)裝產(chan)品。 下一(yi)篇(pian)分析鄭州塑料模具材料失效的原因
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