Lub tes tsho tooj liab tooj liab tooj liab hais txog lub tes tooj liab ua los ntawm cov tooj liab tooj liab. Cov ntsiab lus tin ntawm cov tooj liab tooj liab feem ntau yog nruab nrab ntawm 3% thiab 14%, thiab nws tsuas yog siv los ua cov khoom siv ywj pheej thiab cov khoom tiv taus. Cov ntsiab lus ntawm cov tooj liab uas ua los ntawm tooj liab tsis ntau dua 8%, thiab cov khoom xws li phosphorus, txhuas, thiab zinc qee zaum ntxiv. Ntxiv cov hlau lead rau tin tooj liab tuaj yeem txhim kho kev ua haujlwm tau zoo thiab hnav tsis kam, thiab ntxiv zinc tuaj yeem txhim kho kev ua tau zoo.
Cov hlau no muaj cov cuab yeej siv siab, tiv taus hnav thiab tiv taus xeb, txiav yooj yim ua, zoo brazing thiab vuam cov yam ntxwv, me me coefficient shrinkage, thiab tsis sib nqus. Nrog lub zog siab, tiv taus xeb thiab ua tau zoo casting, nws tau siv dav hauv ntau yam kev lag luam rau lub sijhawm ntev.
Tin tooj liab yog cov hlau tsis muaj hlau uas muaj qhov tsawg tshaj plaws casting shrinkage tus nqi. Nws tuaj yeem siv los tsim cov castings nrog cov duab nyuaj, tshem tawm qhov sib sib zog nqus thiab qhov xav tau huab cua qis. Cov tooj liab tooj liab tau tiv taus xeb hauv huab cua, dej hiav txwv, dej tshiab thiab ua pa, thiab tau siv dav hauv chav rhaub dej thiab cov nkoj nkoj. Phosphorus-muaj cov tooj liab tooj liab muaj cov cuab yeej siv tau zoo thiab tuaj yeem siv ua qhov hnav-tiv taus qhov chaw thiab qhov chaw ywj pheej ntawm cov cuab yeej siv tshuab siab.
Cov tes tsho tooj liab tooj liab tooj liab yog qhov dav tshaj plaws thiab siv hauv kev lag luam hluav taws xob thiab hluav taws xob, suav txog ntau dua ib nrab ntawm kev siv tag nrho. Siv ntau yam kab hluav taws xob thiab xov hlau, lub cev muaj zog thiab hloov pauv, hloov pauv thiab luam tawm cov laug cam. Hauv kev tsim cov tshuab thiab tsheb thauj mus los, nws tau siv hauv kev tsim cov khoom lag luam thiab cov khoom siv sib txuas, ntsuas, ntsuas cov kabmob, cov pwm, cov hloov cua sov thiab cov twj.
Cov tes tsho tooj liab tooj liab tooj liab nrog cov tooj liab tooj liab kuj tseem siv dav hauv ntau yam khoom siv kho tshuab nrog qhov xav tau ntau dua. Feem ntau siv qib yog QSn4-3, QSn4.4-2.5, QSn7-O.2, ZQSn10-1, ZQSn5-2-5, ZQSN6-6-3, thiab lwm yam.
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