發布時間：2022-02-14
醫療(liao)器械外(wai)殼(ke)通常(chang)采用(yong)低(di)壓灌注的方式來制(zhi)造，低(di)壓灌注采用(yong)簡(jian)單的模(mo)(mo)(mo)(mo)具來生產，如鋁模(mo)(mo)(mo)(mo)、樹脂模(mo)(mo)(mo)(mo)、ABS模(mo)(mo)(mo)(mo)等。樹脂模(mo)(mo)(mo)(mo)具比(bi)較(jiao)常(chang)用(yong)，因為樹脂模(mo)(mo)(mo)(mo)具的成本比(bi)鋁模(mo)(mo)(mo)(mo)具低(di)，制(zhi)作模(mo)(mo)(mo)(mo)具的速度也比(bi)較(jiao)快。
低壓灌注適用于(yu)產品(pin)開發過程中的小批量試生產，該類型(xing)主(zhu)要(yao)用于(yu)汽車行業，以及產品(pin)結構簡單的大型(xing)產品(pin)和壁厚(hou)不(bu)均勻的塑(su)料制品(pin)的生產，該類型(xing)主(zhu)要(yao)用于(yu)類似醫用推車外(wai)(wai)殼、儀器外(wai)(wai)殼、試劑設備外(wai)(wai)殼、汽車保(bao)險杠、汽車發動(dong)機罩等醫療產品(pin)。
因為這些產品數量不太多，如果打開注塑模具，成本會相對較高，很多產品需要改變產品結構設計后才能進行注塑成型。注塑成型加工主要是在啤機上使用開鋼膜生產大量產品。注塑加工適合尺寸比較小的產品，產品產量會很大。
醫療(liao)器械(xie)外殼加工(gong)(gong)(gong)(gong)(gong)技(ji)術(shu)(shu)是鈑金(jin)技(ji)術(shu)(shu)人員需(xu)要掌握的(de)關鍵技(ji)術(shu)(shu)，也是鈑金(jin)產品成型的(de)重要工(gong)(gong)(gong)(gong)(gong)序。醫療(liao)器械(xie)外殼的(de)加工(gong)(gong)(gong)(gong)(gong)步驟有加工(gong)(gong)(gong)(gong)(gong)基礎、切割下料、彎曲加工(gong)(gong)(gong)(gong)(gong)、壓延加工(gong)(gong)(gong)(gong)(gong)、局部加工(gong)(gong)(gong)(gong)(gong)、加工(gong)(gong)(gong)(gong)(gong)設備和新工(gong)(gong)(gong)(gong)(gong)藝(yi)等。
從加工(gong)的基本(ben)原理、工(gong)藝流程和所用材(cai)料(liao)出發(fa)，通過沖(chong)孔、沖(chong)裁(cai)以及熔(rong)切、拉彎(wan)、輥彎(wan)和壓彎(wan)、壓延(yan)旋壓和脹形等，各(ge)種(zhong)加工(gong)設備(bei)和新技術由生(sheng)產(chan)中的實(shi)際零件、典(dian)型零件和常用設備(bei)來完成。
除了生產過程中的嚴格要求，還需要獨立于生產進行質量檢驗。一是嚴格按照圖紙控制尺寸；二是嚴格控制外觀質量，對不符合尺寸的進行修補或報廢處理，外觀不允許碰劃傷，噴涂后檢查色差、耐腐蝕性、附著力。
