Chifukwa chiyani mtolo kapena chokokera chiyenera kukhala chakuda phosphate?

The PULEY ndi gawo la mtundu wa hub, ndipo zinthuzo nthawi zambiri zimakhala chitsulo chosungunuka. Njira yopangira nthawi zambiri imachokera ku kuponyera ndi kupanga. Chifukwa chake, zinthu za pulley popanda chithandizo chapamwamba zimatha kukhala ndi ma burrs pamtunda ndipo zimatha kuvulaza manja anu. Athanso kukhala ndi dzimbiri atagwiritsidwa ntchito kwa nthawi yayitali m'malo achinyezi. dzimbiri chodabwitsa.

Pakalipano, mankhwala omwe amagwiritsidwa ntchito kwambiri pamwamba pa ma pulleys ndi phosphating ndi blackening. Njirayi ndikuchotsa mafuta ndi dzimbiri - kuyeretsa madzi - kukonza pamwamba - phosphating - kuyeretsa madzi - kukonza chromate - kuyanika - mafuta kapena utoto:

Pambuyo pa pulley ndi phosphated ndikuda, pulley imakhala ndi maonekedwe abwino kwambiri akuda. Chofunikira ndichakuti pulley itatha phosphated ndikuda, sikophweka kuchita dzimbiri. Moyo wautumiki wa pulley umakulitsidwa kwambiri, zomwe zingathandize makasitomala kuchepetsa ndalama.