Ƙungiyar. Wannan shi ne farkon kasuwanci bushewa aiki tsari. A cikin shekarun 1840, nau'ikan kayayyakin filastik da adadin su suna da iyaka sosai, saboda haka, fasahar bushewa ba ta ci gaba da sauri ba har zuwa ƙarshe. Tare da karuwar samfurin iri da kuma inganta yawan aiki, da sauri bushewa molding tsari

Kayayyakin filastik da aka yi suna ƙara yawa. A cikin masana'antun abin sha na Amurka, adadin kwantena na filastik ya karu daga sifili a 1977 zuwa biliyan 10 a 1999. A lokacin Yaƙin Duniya na II, an fara amfani da fasahar bushewa don samar da kwalban polyethylene mai ƙarancin ƙaranci. Bayan shekarun 1950

A lokacin, tare da haihuwa na high yawa polyethylene da kuma ci gaban bushewa gyara inji, bushewa gyara fasahar da aka yi amfani da su sosai. Girman kwantena mai komai zai iya kai dubban lita, wasu samarwa sun yi amfani da sarrafa kwamfuta. Polyethylene, polyvinyl chloride, polypropylene ne da aka yi amfani da filastik don bushewa

Polyester, da dai sauransu, da aka samu da komai kwantena da yawa amfani a matsayin masana'antu marufi kwantena. Dangane da hanyoyin yin ƙirar ƙirar, ana iya rarraba bushewa zuwa extrusion bushewa da allura bushewa, sabon ci gaba yana da layers da yawa bushewa da tsananin bushewa. Extrusion tsari ne sanya filastik bayan plasticizing asali squeezed ta hanyar dungulla

Matsa zuwa extrusion mold kai, sa'an nan kuma tare da kasa mold da matsa gas don cimma samfurin da aka tsara.