Koj Puas Paub Yuav Pom Weld Stainless Hlau Thiab Copper Li Cas?

Stainless hlau yog ib lo lus dav dav rau stainless hlau thiab acid-resistant steel. Nws kuj tau muab faib ua austenitic, martensitic, thiab ferritic stainless hlau. Stainless hlau yog hais txog cov hlau uas tiv taus corrosion los ntawm cov xov xwm tsis muaj zog xws li cua, chav dej thiab dej, thaum acid-resistant steel yog hais txog cov hlau uas tiv taus cov tshuaj corrosive xws li acid, alkali, thiab ntsev.

Stainless hlau thiab acid-resistant steel yog sib txawv heev nyob rau hauv lub degree ntawm alloying. Stainless hlau tsis tas yuav acid-resistant; acid-resistant steel feem ntau yog stainless.

Kev tiv thaiv corrosion ntawm stainless hlau feem ntau yog vim cov ntsiab lus chromium ntawm lub ntsiab, uas tuaj yeem tsim cov chromium-nplua nuj oxide zaj duab xis (passivation zaj duab xis) ntawm cov hlau. Vim li no, cov ntsiab lus chromium hauv stainless hlau yuav tsum siab dua 12 feem pua.

Thaum tshav kub kub-resistant steel yog hais txog cov hlau uas muaj peev xwm tswj tau tshuaj stability (corrosion resistance, non-oxidation) thiab muaj lub zog txaus ntawm qhov kub thiab txias.

Lub tshav kub tsis kam ntawm steel yog tsuas yog ua tiav los ntawm alloying. Raws li cov ntsiab lus ntawm nws cov khoom siv alloy, nws tuaj yeem muab faib ua peb pawg: cov hlau tsis tshua muaj hluav taws kub-resistant steel; medium-alloy tshav kub-resistant steel thiab high-alloy tshav kub-resistant steel. Tsawg-alloy tshav kub-resistant steel hais txog cov cua sov-resistant steel nrog cov ntsiab lus alloying tsawg dua 5 feem pua; medium-alloy tshav kub-resistant steel yog hais txog cov cua kub-resistant steel nrog ib tug alloying ntsiab lus ntawm 5 feem pua ​​​​rau 12 feem pua; high-alloy heat-resistant steel hais txog cov ntsiab lus alloying ntau dua 13 feem pua ​​​​ntawm cov hlau tsis muaj cua sov. Lub tshav kub-resistant steel koom nyob rau hauv phau ntawv no tsuas yog high-alloy tshav kub-resistant steel, thiab tsis koom nrog low-alloy thiab medium-alloy heat-resistant steel.

Lub ntsiab ntxiv ntawm cov hlau tsis muaj cua sov yog chromium, thiab cov ntsiab lus chromium feem ntau yog ntau tshaj 12 feem pua, uas yog tib yam li stainless hlau. Yog li ntawd, hom hlau no muaj ob qho tib si kub-resistant zog, stainless hlau thiab corrosion kuj, yog li ntau hom kub-resistant steel hlau kuj stainless hlau. Qee cov neeg hu ua hom cua sov-resistant steel kub-resistant stainless hlau, thaum cov lus hais saum toj no stainless hlau hu ua corrosion-resistant stainless hlau, thiab tseem hu ua stainless hlau-resistant steel. ) collectively hu ua stainless hlau.

Lub melting kub ntawm stainless hlau yog 1500 degrees, thiab melting kub ntawm liab tooj liab yog hais txog 1100 degrees. Vim lub zog kub tsis kam thiab siab tiv taus ntawm stainless hlau, qhov nruab nrab zaus qhov chaw vuam tshuab vuam txoj kev tuaj yeem siv tau.

Qhov ceev tam sim no thiab cua kub ceev ntawm qhov nruab nrab zaus qhov chaw vuam tuaj yeem ua tiav qhov vuam sai.

Kuj tseem muaj txoj hauv kev yooj yim dua rau solder stainless hlau thiab tooj liab xaim ua ke:

Ua ntej, npaj me ntsis dej: cia li muab ob peb milliliters ntawm dilute hydrochloric acid (HCl plus H 2O) rau hauv ib lub raj mis me me; tawg lub roj teeb manganese-zinc qhuav, siv ob peb square millimeters ntawm nws cov tawv zinc grey, thiab muab tso rau hauv dilute hydrochloric acid, pib bubbling, tos ib nrab ib teev thiab koj tuaj yeem siv nws.

Qhov thib ob, siv tus pas txhuam hniav los nqa dej me ntsis, thiab siv rau cov hlau tsis muaj hlau uas yuav tsum tau welded.

Thib peb, siv lub tshuab hluav taws xob siv hluav taws xob los siv cov khoom siv rau qhov chaw uas muaj dej, kom nws nkag mus rau hauv tag nrho.

Plaub, nws tsis yog nyuaj rau solder lub taub hau hlau uas tau noj cov solder rau nws.

Tag nrho cov saum toj no welding txoj kev tuaj yeem welding stainless hlau thiab tooj liab hlau ua ke. Nyob ntawm cov kev xav tau ntawm kev ua hauj lwm thiab kev xaiv cov txheej txheem tsis, stainless hlau daim hlau thiab tooj liab daim hlau kuj yuav welded.