12L14 Hlau Txiav Dawb

A cov hlau uas muaj cov sulfur thiab phosphorus ntau dua li qub uas siv rau kev tsim cov khoom rau cov cuab yeej siv tshuab ceev ceev thiab semi-automatic. Cov hlau txiav dawb yog tsim tawm hauv daim ntawv ntawm cov pas nrig, thiab nws muaj 0.08–0.45 feem pua ​​​​​​ntawm cov pa roj carbon, 0.15–0.35 feem pua ​​​​​​silicon, 0.6–1.55 feem pua ​​​​​​ntawm manganese, 0.08–0.30 feem pua ​​​​​​ntawm cov leej faj, thiab 0.05–0.16 feem pua ​​​​​​ntawm phosphorus. Cov sulfur ntau ua rau muaj cov khoom xyaw (piv txwv li, manganese sulfide) muab tso rau ntawm cov noob. Cov khoom xyaw no pab txhawb kev txiav thiab txhawb kev sib tsoo thiab yooj yim tsim cov chips. Rau cov hom phiaj no, cov hlau txiav dawb qee zaum yog alloyed nrog lead thiab tellurium.

12L14 yog ib hom hlau carbon uas muaj sulfurized thiab rephosphorized rau kev txiav dawb thiab kev siv tshuab. Cov hlau ua vaj tse (Hlau tsis siv neeg) muaj kev ua haujlwm zoo heev thiab lub zog qis dua vim yog cov khoom sib xyaw xws li Sulfur thiab Lead, uas tuaj yeem txo qhov kev tiv thaiv txiav thiab txhim kho qhov tiav thiab qhov tseeb ntawm cov khoom siv tshuab. 12L14 hlau tau siv dav hauv kev tsim cov khoom siv ntsuas qhov tseeb, cov khoom siv tsheb thiab cov khoom tseem ceeb ntawm ntau hom tshuab, cov ntawv thov ib txwm muaj xws li bushings, shafts, inserts, couplings, fittings thiab lwm yam.