Yuav khaws cov ntaub ntawv li cas kom raug?
Txheem
| Cov ntaub ntawv yooj yim khaws cia. Tsuas muaj ob yam uas yuav pab khaws koj cov ntaub ntawv nyob rau hauv lub sijhawm ntev. | |
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Tshem tawm cov ntaub ntawv kom zoo | |
 | Raws li kev ntxias li nws yog pov koj cov cuab yeej rau hauv lub tub rau khoom lossis lub thawv cia tom qab koj siv lawv tiav lawm, nws tuaj yeem ua rau cov hniav tawg lossis cov ntaub ntawv tawg. |
 | Qhov no yog vim hais tias cov neeg uas forged koj cov ntaub ntawv tsim nws yuav ua tau raws li resistant rau hnav los yog dabtsi yog khoov raws li qhov ua tau vim lub siab npaum li cas ntawm carbon siv nyob rau hauv cov txheej txheem alloying. |
 | Ib qho kev mob tshwm sim ntawm tus txheej txheem no yog tsis muaj zog rau tam sim ntawd jolts. Lwm cov ntsiab lus tuaj yeem pab cuam tshuam qhov no, tab sis lawv yuav tsis tas yuav txo nws. |
Khaws cov ntaub ntawv sib cais | |
 | Cov ntaub ntawv yog cov cuab yeej abrasive tsim los txhawm rau lwm cov ntaub ntawv thaum siv, suav nrog lwm cov hlau. |
 | Txawm li cas los xij, thaum lawv nkag mus rau hauv kev sib cuag nrog lwm cov ntaub ntawv, lawv tau ntsib nrog cov khoom ntawm tib lub hardness. |
 | Qhov no txhais tau hais tias ob qho tib si cov ntaub ntawv tuaj yeem cuam tshuam ib leeg. |
 | Qhov zoo tshaj plaws los tiv thaiv qhov no yog dai cov ntaub ntawv ntawm lub khib tom qab siv. Qee cov ntawv cwj mem muaj lub qhov dai dai, ua qhov no tshwj xeeb tshaj yog yooj yim. |
 | Yog tias koj tsis tuaj yeem dai koj cov ntaub ntawv, nws yog qhov zoo dua los siv cov khoom sib faib kom lawv sib cais ntawm ib leeg hauv koj lub tub rau khoom lossis lub thawv ntawv, tsis yog cia lawv xoob. |
Khaws kom deb ntawm cov dej noo | |
 | Cov ntaub ntawv yuav tsum tau muab khaws cia rau hauv qhov chaw qhuav. Lawv tuaj yeem xeb tau yooj yim thiab thaum lawv ua, lawv siv tsis tau lawm. |
Ntxiv
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