tooj dagmuaj kev ua haujlwm zoo thiab feem ntau siv rau kev txiav rau hauv ntau yam khoom siv.Ntawm lawv, cov khoom siv tooj dag tshaj plaws hauv kev txiav yog Pb-muaj tooj dag.Cov hlau lead-muaj tooj dag muaj cov tshuaj zoo heev, lub cev, kev siv tshuab thiab kev txiav dawb, thiab yog cov khoom siv tooj liab siv dav tshaj plaws.Feem ntau yog siv rau hauv cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov xauv, cov pob qij txha, plug-in kav dej valve lub cev, cov ntsuas dej, flanges, cov menyuam yaus cov khoom ua si thiab lwm yam.
Cov txheej txheem dawb-txiav ntawm txhuas tooj dag: Thaum lub sijhawm machining txheej txheem, thaum cov khoom siv tooj dag raug txiav, cov khoom siv lead ua tawg tau yooj yim tawg thiab cov chips tawg, thiaj li txo cov chips, txo cov nplaum thiab vuam, thiab ua kom ceev txiav.nyhuv.Vim tias qhov qis melting ntawm cov hlau lead hauv cov khoom, thaum txiav, kev sib cuag ntawm cov hniav thiab cov nti yog rhuab thiab melted instantly, uas yuav pab hloov cov duab ntawm cov txiav thiab ua lub luag hauj lwm lubricating.
Raws li cov txheej txheem ntawm kev txiav dawb ntawm cov hlau lead, cov ntsiab lus uas tsim nyog rau kev txhim kho kev ua haujlwm ntawm cov tooj liab alloys feem ntau muab faib ua peb hom raws li lawv cov ntaub ntawv uas twb muaj lawm hauv tooj liab alloys: ib qho me me yog yaj hauv tooj liab alloys thiab cov ntaub ntawv eutectic nrog tooj liab.Cov ntsiab lus;insoluble nyob rau hauv tooj liab alloys, tab sis sib sau ua ke nrog tooj liab;ib nrab soluble nyob rau hauv tooj liab alloys, thiab kuj tsim cov tebchaw nrog tooj liab.Ntxiv cov ntsiab lus sib txawv yuav txhim kho cov txheej txheem, lub cev thiab tshuaj lom neeg ntawm tooj liab alloys rau qhov sib txawv.
Post lub sij hawm: Jun-09-2022