Cov kav dej tooj liab tuaj yeem faib ua peb pawg: phosphorus deoxidized tooj liab kav, tooj liab kav, thiab cov pa liab dawb. Cia peb qhia luv luv qhia lawv hauv qab no.
TP2 yog phosphorus deoxidized tooj liab, nrog lub teb chaws tus qauv ntawm 99.9 {{% cov ntsiab lus tooj liab. Txawm li cas los xij, txog 0.015% phosphorus yog ntxiv rau thaum lub sijhawm melting los txhim kho kev ua haujlwm vuam kev ua haujlwm ntawm tooj liab kav. Nws yog tsuas yog siv rau cov khoom lag luam nrog kev vuam siab nyob rau hauv cov cua txias, uas tuaj yeem zam "hydrogen embrittlement" thiab yooj yim rau weld dua t2.
Vim yog qhov sib ntxiv ntawm phosphorus caij hauv TP2 cov khoom siv, nws lub ductility yog qhov siab. Nws yog dav siv nyob rau hauv kev tsim cov cua txias ntawm cov pa tawm cov kav dej txuas, cov dej kub roj txuas rau cov kav dej sib txuas, thiab lwm yam.
T2 yog tus tooj liab zoo nkauj nrog cov ntsiab lus tooj liab siab dua 99.90%. Thaum cov neeg siv muaj cov kev xav tau siab rau cov khoom siv T2 yuav yog thawj qhov kev xaiv.
TU1 YOG OXYGEN DAWB KHWV, tsuas yog muab tso, nws yog cov ntsiab lus loj dua lossis cov ntsiab lus phosphorus ntawm tsawg dua {3}}. 002%. Nws muaj kev ua tiav zoo thiab thermal conductivity, zoo duction ua, ua haujlwm ua tau zoo, kev ua haujlwm ntawm corrosion, thiab txias kuj. Nyob rau tib lub sijhawm, vim muaj qhov tseem ceeb txo nyob rau hauv tus naj npawb ntawm theem ob theem hauv TU1 yog li kev txhim kho TP2 zoo dua li ntawm TP2, yog li muaj kev txhim kho TP2 zoo dua li ntawm kev ua siab ntev ntawm Tu1. Kev txhim kho ntawm kev ductility coj kev ua kom zoo dua. Nws yuav tsum raug sau tseg tias ob qho kawg ntawm kev sib txuas yeeb yuav tsum tau kho nrog lub tswb hluav taws xob nthuav dav. Tswb lub qhov ncauj nthuav dav yog qhov tseeb deformation ntawm thawj tooj liab cov ntaub qhwv rau hauv lub raj raj los ntawm rub tawm thiab nyem. Txoj kev faib tawm kev faib tawm ntawm Tu1 muaj qhov zoo tshaj plaws rau TP2, uas txhais tau tias yog kev sib txuas ntawm cov yeeb nkab lub qhov ncauj, thiab txhim khu kev qha ntawm cov yam ntxwv sib txuas, thiab cov yam ntxwv sib txuas ntawm cov yam ntxwv sib txuas yuav muaj qhov ruaj khov. Vim tias nws cov kev yuav tsum tau tsim thiab cov nqi siab, nws cov khoom lag luam yog siab dua li lwm cov ntawm tooj liab cov leeg.
Feem ntau cov txheej txheem tooj liab tau muab faib ua peb hom: nyuaj, ib nrab, thiab muag muag. Qhov hloov pauv yooj yim nyob ntawm cov duab, thiab tuaj yeem txiav txim siab los ntawm dabtsi yog khoov lub tooj liab copper. Zoo siab tooj liab kav yog yooj yim heev rau khoov, tab sis yog tias nws nyuaj tshwm sim tom qab khoov, nws qhia tau tias qhov zoo ntawm cov yeeb nkab tooj liab tsis zoo heev.
