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Cold forging, inozivikanwawo sekutonhora vhoriyamu forging, inzira yekugadzira pamwe nekugadzirisa nzira. Zvakanyanya zvakafanana nekutsikisa maitiro, inotonhora yekugadzira nzira inoumbwa nezvinhu, mold uye zvishandiso. Asi izvo zvemukati mukugadzirisa zvidhindo zvinonyanya ndiro, uye zvinhu zviri mukutonhora kugadzira kugadzirisa zvinonyanya dhisiki waya. Japan (JIS) inonzi cold forging (cold forging), China (GB) inonzi cold heading, outside screw factory sekudana musoro.

Simbi chimiro bhoti mukushandiswa ichave yakasiyana maererano nesimba rekushandiswa kwakasiyana kwenzvimbo kwakasiyanawo, saka sei kutonga giredhi resimba? Simbi chimiro mabhaudhi giredhi resimba: Iyo giredhi resimba resimbi chimiro bhauti yesimbi chimiro chekubatanidza ndeye 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9, nezvimwewo. nhamba, iyo inomiririra iyo inomiririra tensile simba kukosha uye flexion reshiyo yesimbi chimiro bhoti zvinhu.

Kugadzira screw fasteners, kurapa kwepamusoro inzira ine isingadzivisike, vatengesi vazhinji mukubvunza nezve screw fasteners, nzira yekurapa pamusoro, iyo yakajairwa network maererano neruzivo rwakapfupikiswa nezve pamusoro peiyo screw fasteners yakajairika kugadzirisa nzira kune marudzi masere. yemafomu, akadai se: dema (bhuruu), phosphating, inopisa dip zinc, dacromet, magetsi emagetsi, chrome plating, nickel uye zinc impregnation. Iyo fastener screw surface treatment iri kuburikidza neimwe nzira yekugadzira chivharo chekuvhara pamusoro peiyo workpiece, chinangwa chayo ndechekuita kuti pamusoro pechigadzirwa ive yakanaka, anti-corrosion effect.