Pulasitiki Botolo Nkhungu Powomba Madzi mbiya

Mafotokozedwe Akatundu

All star plast imanyadira kupanga zida zamtundu wapamwamba kwambiri zamitundu yosiyanasiyana. Mabotolo apulasitiki a mbiya ndi chimodzi mwazinthu zodziwika kwambiri.

Tsatanetsatane wa Ndondomeko

Pali njira zitatu zomwe zimapangidwira pulasitiki zowumbidwa: kuumba kwa extrusion, kuumba jekeseni, ndi kuumba kuwombera. Zonsezi zimakhala ndi masitepe ochepa chabe, omwe amasiyana kwambiri m'magawo oyambirira. M'munsimu, mwatsatanetsatane, pali masitepe opangira kuwombera:

1. Gawo loyamba pakuwumba nkhonya limaphatikizapo kusungunula pulasitiki, ndiyeno kugwiritsa ntchito jekeseni kuti ikhale preform, kapena parison.

Parison ndi pulasitiki yooneka ngati chubu yokhala ndi bowo kumbali ina yomwe imalola mpweya woponderezedwa kudutsa.

Preform, yomwe ndi yofewa komanso yowumbidwa, imakankhidwa ndi nkhosa yamphongo yachitsulo ndikukulitsidwa mpaka kutalika kwake kwa mankhwala.

2. Parison kapena preform ndiye atsekeredwa mu nkhungu pabowo. Mawonekedwe omaliza a pulasitiki wopangidwa ndi nkhonya amatengera mawonekedwe a nkhungu.

3. Kuthamanga kwa mpweya kumalowetsedwa mkati mwa parison kudzera pa pini yowombera. Kuthamanga kwa mpweya kumapangitsa kuti parison ikule ngati baluni ndikutenga mawonekedwe a nkhungu.

4. Chomalizacho chikhoza kuzizidwa poyendetsa madzi ozizira kudzera mu nkhungu, ndi conduction, kapena kutulutsa madzi osagwirizana m'chidebecho. The kuwomba akamaumba ndondomeko amatenga masekondi angapo; makina omangira mphamvu amatha kupanga zotengera 20,000 mu ola limodzi.

5. Gawo la pulasitiki litakhazikika ndikuwumitsidwa, nkhungu imatsegula ndikulola kuti gawolo litulutsidwe.