1. Tsis sib xws cua sov ntawmcev steelua rau khoov
Cov yeeb nkab steel yog rhuab tsis sib xws, qhov kub ntawm qhov axial kev taw qhia ntawm cov yeeb nkab sib txawv, cov qauv hloov lub sij hawm sib txawv thaum lub sij hawm quenching, thiab lub ntim hloov lub sij hawm ntawm cov yeeb nkab steel sib txawv, ua rau khoov.
2. Hlau yeeb nkab khoov vim quenching
Quenching yog txoj kev kho cua sov uas nyiam tshaj plaws rau kev tsim cov yeeb nkab uas muaj zog thiab qib siab. Cov qauv kev hloov pauv tshwm sim sai heev thaum lub sijhawm quenching, thiab cov qauv kev hloov pauv ntawm cov yeeb nkab steel coj los ntawm kev hloov pauv ntim. Vim qhov tsis sib xws ntawm qhov txias txias ntawm ntau qhov chaw ntawm cov yeeb nkab steel, qhov kev hloov pauv ntawm cov qauv tsis sib xws, thiab khoov yuav tshwm sim.
3. Lub raj khoob ua rau khoov
Yog hais tias cov tshuaj muaj pes tsawg leeg ntawm cov yeeb nkab steel yog cais, txawm tias qhov txias txias yog tib yam, nws yuav khoov thaum lub caij txias.
4. Cov cua txias tsis sib xws ua rau khoov
Tom qab kev kho cua sov ntawm cov kav hlau hlau, cov kav hlau steel feem ntau yog txias lawm thaum tig. Lub sijhawm no, axial thiab circumferential txias tus nqi ntawm cov yeeb nkab steel tsis sib xws thiab khoov yuav tshwm sim. Yog tias qhov curvature ntawm cov yeeb nkab steel tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua, nws yuav cuam tshuam rau kev ua haujlwm tom ntej (xws li kev thauj mus los, kev ncaj nraim, thiab lwm yam) thiab tseem cuam tshuam rau nws cov kev ua tau zoo.
5. Khoov tshwm sim ntawm lub tshuab sizing
Alloy steel kav, tshwj xeeb tshaj yog cov kav hlau nrog nqaim sab nraud txoj kab uas hla (xws li cov kav dej thiab cov casings) feem ntau yuav tsum tau sizing tom qab tempering. Yog tias cov kab nruab nrab ntawm cov sizing racks tsis sib haum, cov yeeb nkab steel yuav khoov.