Cov nyhuv ntawm cov ntaub ntawv refractory thiab thermal rwb thaiv tsev cov ntaub ntawv ntawm hluav taws xob cua sov alloys

Cov nyhuv ntawm cov ntaub ntawv refractory thiab thermal rwb thaiv tsev cov ntaub ntawv ntawm hluav taws xob cua sov alloys

Nyob rau hauv lub tshuab hluav taws xob muaj hluav taws xob, txhawm rau txhim kho cov hluav taws xob cua sov thiab tiv thaiv kom tsis txhob deforming ntawm qhov kub thiab txias, nws yog ib qho tsim nyog yuav tsum tau siv cov khoom siv rov qab thiab kev txhawb nqa los ntawm cov khoom siv refractory. Qee cov khoom siv hluav taws xob cua sov ntawm cov khoom siv hauv tsev tau ncaj qha ua cov hmoov oxide. Lub sijhawm no, qhov chaw ntawm cov hluav taws xob cua sov alloy yuav ncaj qha mus cuag cov khoom siv refractory, thiab cov tshuaj tiv thaiv lub cev thiab tshuaj yuav tshwm sim ntawm qhov kub thiab txias, uas yuav ua rau cov hluav taws xob cua sov. Cov khoom siv rwb thaiv tsev yog cov khoom siv tseem ceeb los txo cov cua sov. Nyob rau hauv cov xwm txheej tshwj xeeb, kev sib cuag ntawm cov khoom siv rwb thaiv tsev nrog cov hluav taws xob cua sov yuav ua rau cov hluav taws xob cua sov.

Puas yog hluav taws xob kub kub tin hlau ib puag ncig tus phooj ywg?

Muaj ob hom kev kub kub tin xov hlau, cov hlau lead-tin hlau thiab cov hlau tsis muaj hlau lead.

Cov hlau lead hauv cov hlau lead-tin yuav ua rau muaj kev ua haujlwm ntawm cov hlau tin thaum lub sij hawm soldering. Uas yog hais tias, cov hlau lead-tin zoo dua li cov hlau lead-dawb tin hlau, tab sis cov hlau lead yog tshuaj lom, thiab siv mus ntev tsis zoo rau tib neeg lub cev. Ntau lub tuam txhab tam sim no Siv cov hlau tsis muaj hlau lead, tseem hu ua ib puag ncig tus phooj ywg tin hlau.

Lead-free solder wire tseem hu ua ib puag ncig tus phooj ywg tin hlau. Nws cov khoom tseem ceeb yog: tin (Sn), nyiaj (Ag), tooj liab (Cu), thiab cov seem muaj cov hmoov lead (Pb), mercury (Hg), cadmium (Cd), polybrominated biphenyls (PB Bs) thiab lwm yam.

Vim li cas cov kab hluav taws xob cua sov muab faib ua qhov ntsuas kub ntawm tus kheej thiab lub zog tas li?

Tus kheej-txheej kub hom yog muab faib ua qhov kub thiab txias, nruab nrab kub thiab siab kub, thiab lub zog tsis tu ncua hom yog muab faib ua cov sib npaug thiab cov koob.

Lub ntsiab tswj tsis tau xaiv rau hluav taws xob cua sov yog lub zog, siab tshaj plaws txij nkawm kub, siab tshaj plaws tiv taus kub, siab tshaj plaws saum npoo kub, electrothermal conversion coefficient, kub coefficient ntawm resistivity, thermal stability, thiab lwm yam.

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