在(zai)選(xuan)購(gou)HDPE(高密度聚乙烯)塑(su)料(liao)(liao)垃(la)圾(ji)(ji)桶(tong)(tong)原(yuan)(yuan)料(liao)(liao)時(shi),需要注(zhu)意(yi)以下諸(zhu)多(duo)細(xi)節(jie): 一、原(yuan)(yuan)料(liao)(liao)純度方面 1. 檢(jian)查雜(za)(za)質(zhi)(zhi)含量 - HDPE塑(su)料(liao)(liao)原(yuan)(yuan)料(liao)(liao)應該盡量純凈。在(zai)采(cai)購(gou)時(shi),要仔(zi)細(xi)檢(jian)查原(yuan)(yuan)料(liao)(liao)中(zhong)(zhong)是(shi)否有明顯的雜(za)(za)質(zhi)(zhi),如(ru)沙子、木屑、金屬屑等。這些雜(za)(za)質(zhi)(zhi)可能(neng)會(hui)在(zai)垃(la)圾(ji)(ji)桶(tong)(tong)生產過程(cheng)中(zhong)(zhong)影響塑(su)料(liao)(liao)的性能(neng)。例如(ru),金屬雜(za)(za)質(zhi)(zhi)可能(neng)會(hui)導致塑(su)料(liao)(liao)在(zai)注(zhu)塑(su)成型過程(cheng)中(zhong)(zhong)損壞模具,而且(qie)