Proshui 10pcs 20cm 24cm 26cm 28cm 30cm yihariye gupfa guta casting ya aluminium

Amateka y'ibikono bidafatika hamwe n'ibikoresho byo gutwika byakoreshejwe muri byo byatangiye mu Ntambara ya Kabiri y'Isi Yose. Ibikoresho bya mbere bitari inkoni ni polytetrafluoroethylene (PTFE), ubu yitwa Teflon, yavumbuwe mu 1938 na injeniyeri DuPont Roy Plunkett. Muri icyo gihe, yagerageje gukora firigo nshya ya chlorofluorocarbon, ariko ku bw'impanuka yavumbuye ko tetrafluoroethylene yari yarahinduye polymer mu kintu cyabitswe n’umuvuduko mwinshi kugira ngo itange ibintu bishya. Iyi ngingo nshya ifite urwego rwo hejuru rwo kurwanya ruswa. Acide nyinshi zikomeye na alkalis (harimo na aqua regia na acide fluorantibonic), okiside ikomeye kandi igabanya imiti ntishobora kubirwanya. Kubwibyo, Teflon ifite irindi zina. ——Umwami wa Plastike.

Ariko, ikizana rwose Teflon murwego rwo guteka nibindi bintu bibiri byayo: ultra-low coefficient de fraisement nimbaraga zo hejuru. Coefficient ya Teflon ni ntoya muri plastiki zose, kandi ingufu zayo zo hejuru nazo ziri hasi cyane mubikoresho byose bikomeye. Iyi miterere ituma bigora ibindi bintu gukomera kubuso bwayo. Hamwe nibyiza byombi, Teflon ifata igice kinini cyisoko ryimyenda idakomeye. Mu myaka yashize, usibye Teflon, ubundi bwoko bwimyenda idafite inkoni nabwo bwatejwe imbere. Isoko rya Dakin fluorine yo mu Buyapani, igifuniko cya Whitford cyo muri Leta zunze ubumwe z’Amerika hamwe n’ibikoresho by’ubutaka byemewe n’isoko. Nyamara, Teflon iracyafite umwanya wingenzi mumasoko adafite inkoni kubera imikorere yayo myiza nigiciro kinini.