Cov caij nplooj ntoos hlav steel hlau pom zoo koom uas twb muaj lawm thiab cov tswj kev lag luam yog muab faib ua ob yam:
1, nyob ntawm tej txias xis teb xis chaw caij nplooj ntoos hlav
Hoob kawm ntawm tus mob khaub thuas muaj tsis txhua qhov cuab lub zog hlau, los yog txias xis teb xis chaw caij nplooj ntoos hlav steel hlau. Txias drawing cov caij nplooj ntoos hlav steel nyob ntawm tej los ntawm taug txhuas quenching xub tau sorbite, nto phosphate, nrog cov chaw loj heev yuav txo yog nqus tau me me lawm, wire yog nqaij fibrous, muaj tensile heev zog thiab txhob elastic thiab zoo dabtsi yog khoov thiab torsion. Precision kub txias xis teb xis chaw caij nplooj ntoos hlav hlau wire, du nto, tsis muaj oxidation thiab decarburization los tsis xws luag, qaug zog lub neej ruaj khov, yog cov lug tseem siv lub caij nplooj hlav steel hlau.
2, roj-tempered ntxaij hlau
Cov caij nplooj ntoos hlav steel hlau yog lwm yam martensite strengthening hlau, los yog cov roj-tempered hlau. Cov steel los ntawm quenching, tempering, yuav tau zoo txhua yam khoom, thaum thaum cov hlau me me me (φ ≤ 2.0 hli), lub zog indexes ntawm cov roj-tempered steel hlau tom qab lub pesoand #39; s kho steel hlau, khaub thuas-twv lower. Thaum cov hlau loj thaumtwg loj (tshaj ≥ φ 6.0 hli) sorbite hlau duab heev ntawm cheeb tsam yuav txo kom cuag zog yuav tsum tau txhaj, roj-tempered steel hlau nkaus, tab sis mus txog cov qhov hauv koj yuav tau txais kev kawm ntau dua no twv steel hlau. Tensile ua tau qab, martensite strengthening hlau tshaj qhov no txawv txawv qhov cuab lub zog hlau tau ib siab elastic txwv. Txias twv hlau fiber ntau hom ntawm microstructure thiab anisotropy ntawm khees, roj-tempered steel microstructure txawm tempered martensite, yog isotropic yuav luag. Thaum uas los tiv thaiv so zog ntawm cov roj-tempered hlau txias-twv steel hlau, siv kub (150 ~ 190℃) tseem muaj ntau tshaj li tus khaub thuas sib twv steel hlau (≤ 120 degrees). Coob tsuas roj quenching thiab tempering steel hlau tsis txias twv steel hlau sib.
