Yuav ua li cas paub qhov zoo ntawm chisel?
Txheem
| Nws tsis tuaj yeem txiav txim siab qhov zoo ntawm me ntsis los ntawm kev saib nws. Txawm li cas los xij, nco ntsoov tias qhov zoo ntawm cov cuab yeej yuav nyob ntawm cov hauv qab no: | |
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Kev kho cua sov yog dab tsi? | |
 | Cov txheej txheem kev kho cua sov tuaj yeem txiav txim siab txog txoj haujlwm uas yuav siv tau ib daim hlau. |
 | Tsuas yog steel hardened rau tej qhov kub thiab txias yog haum rau ib tug chisel. Hlau tseem tuaj yeem pab tau thaum tempering ntawm qhov sib txawv ntawm qhov kub thiab txias, tab sis twb zoo li lwm yam cuab yeej thiab khoom siv. |
 | Txhawm rau kom paub tseeb tias lub chisel txias tau kho kom sov thiab ua kom zoo, sim siv lub cuab yeej txiav tawm ib daim hlau softer. Yog tias qhov me ntsis tsis zoo (lossis puas), nws yuav txhais tau hais tias qhov me ntsis yuav tsum tau ua kom zoo dua lossis ua kom zoo dua. |
Dab tsi ntxiv tuaj yeem cuam tshuam qhov zoo ntawm chisel? | |
 | Tsis tas li ntawd, qee cov khoom tuaj yeem raug forged lossis ua los ntawm chrome vanadium hlau. |
 | Ob leeg stamping thiab kev siv chrome vanadium steel nce kev ntseeg tau ntawm cov cuab yeej, txhim kho nws qhov zoo. |
"BS 3066: 1995 Specification for Engineering Bits and Related Tools" yog dab tsi? | |
 | Los ntawm kev yuav ib co kev tsim kho thiab txias chisels, koj tuaj yeem xyuas kom meej tias cov khoom sib ntsib BS 3066: 1995 specification rau engineering khoom thiab lwm yam cuab yeej. Qhov no yog tus qauv tsim los ntawm British Standards Institution. Qee lub sij hawm lwm cov qauv thiab cov koom haum yuav raug teev tseg. |
