M'zaka zaposachedwapa, kuponyera mchenga kwagwiritsidwa ntchito kwambiri mumakampani opanga zinthu

Kuponya mchengandi njira yogwiritsidwa ntchito kwambiri yopangira zinthu zachikhalidwe, yomwe ingagawidwe m'magulu awiri: kuponya mchenga wa dongo, kuponya mchenga wofiira, ndi kuponya mchenga. Chidebe cha mchenga chomwe chimagwiritsidwa ntchito nthawi zambiri chimakhala ndi chidebe chakunja cha mchenga ndi pakati (chidebe). Chifukwa cha mtengo wotsika komanso kupezeka kosavuta kwa zipangizo zopangira zinthu zomwe zimagwiritsidwa ntchito mukuponyera mchenga, komanso kuthekera kwawo kugwiritsidwanso ntchito kangapo, kukonza kosavuta, komanso kugwira ntchito mwachangu popanga zinthu zopangira mchenga, kwa nthawi yayitali akhala njira yoyambira yopangira zinthu zopangira zitsulo, chitsulo, ndi aluminiyamu, zomwe zimapangitsa kuti zikhale zoyenera kupanga zinthu zambiri komanso zazikulu.

Malinga ndi kafukufukuyu, pakadali pano m'makampani opanga zinthu padziko lonse lapansi, 65-75% ya zinthu zopangidwa ndi mchenga zimapangidwa ndikupangidwa pogwiritsa ntchito zinyalala za mchenga, ndipo kupanga zinthu zopangidwa ndi dongo kumawononga pafupifupi 70% ya izi. Chifukwa chachikulu ndichakuti zinthu zopangidwa ndi mchenga zimakhala ndi ndalama zochepa, njira zosavuta zopangira, nthawi yochepa yopangira poyerekeza ndi njira zina zopangira, komanso pali antchito ambiri aukadaulo omwe amachita ntchito yopangira mchenga. Chifukwa chake zida zambiri zamagalimoto, zida zamakanika, zida za hardware, zida za sitima, ndi zina zotero zimapangidwa pogwiritsa ntchito ukadaulo wonyowa wa mchenga wa dongo. Ngati nkhungu yonyowa singakwaniritse zofunikira, ganizirani kugwiritsa ntchito zinthu zopangidwa ndi mchenga wouma kapena mitundu ina ya zinthu zopangidwa ndi mchenga. Kulemera kwa zinthu zopangidwa ndi mchenga wobiriwira wa dongo kumatha kuyambira makilogalamu angapo mpaka makumi a makilogalamu, kupangira zinthu zina zazing'ono komanso zapakati, pomwe zinthu zopangidwa ndi mchenga wouma wa dongo zimatha kulemera matani makumi. Njira zosiyanasiyana zopangira mchenga zili ndi ubwino wapadera, kotero kupangira mchenga ndi njira yopangira zinthu yomwe makampani ambiri amapanga. M'zaka zaposachedwa, opanga ena opanga mchenga ku China aphatikiza kukonza mchenga wokha, zida zopangira zinthu zopangidwa ndi mchenga, ndizida zoponyera zokhakuti akwaniritse kupanga ndi kuponyera zinthu zosiyanasiyana mogwira mtima, motsika mtengo, komanso mokulirapo. Makina a Juneng akuyandikiranso kukhazikitsidwa kwa zinthu padziko lonse lapansi.