Qee tus tuaj yeem nyiam los ntawm cov hlau nplaum, thiab qee qhov tsis yooj yim lossis tsis nyiam los ntawm cov hlau nplaum. 1. Cov hlau nplaum nyiam dab tsi? Cov hlau nplaum nyiam cov khoom ferromagnetic. Saib cov lus txuas rau cov khoom siv ferromagnetic. Txawm hais tias nws tuaj yeem nyiam los ntawm cov hlau nplaum tseem ceeb yog nyob ntawm cov ntsiab lus ntawm cov khoom ferromagnetic hauv cov khoom. Yog tias cov ntsiab lus loj, nws yuav nyiam, thiab yog tias cov ntsiab lus me me, nws yuav tsis yooj yim rau kev nyob thiab tsis tuaj yeem nyiam los ntawm cov hlau nplaum. 2. Dab tsi yog nyob rau hauv stainless hlau? Stainless hlau muab faib ua peb pawg: austenitic stainless hlau, ferritic stainless hlau thiab martensitic stainless hlau. Austenitic stainless steels muaj 16 feem pua -26 feem pua chromium thiab txog li 35 feem pua nickel, feem ntau muaj kev tiv thaiv corrosion siab tshaj plaws, tsis tuaj yeem ua kom muaj zog los ntawm kev kho cua sov, thiab tsis muaj hlau nplaum; hom feem ntau yog 18/8, lossis qib 304, Ntawd yog, nws muaj 18 feem pua chromium thiab 8 feem pua nickel; Kev siv ib txwm muaj xws li kev lag luam dav hlau, khoom noj siv mis thiab zaub mov kev lag luam. Standard ferritic stainless hlau muaj 10.5 feem pua -27 feem pua chromium, tab sis tsis muaj npib tsib xee. Vim tias cov ntsiab lus carbon tsawg (tsawg dua 0.2 feem pua), nws tsis tuaj yeem ua kom muaj zog los ntawm kev kho cua sov. Nws tsuas yog siv nyob rau hauv lub sijhawm uas corrosion kuj tsis siab, xws li kev tsim kho thiab tsheb hauv kev kho kom zoo nkauj. Martensitic stainless hlau feem ntau muaj 11.5 feem pua -18 feem pua chromium thiab tsawg dua 1.2 feem pua carbon, qee zaum npib tsib xee, tuaj yeem ua kom muaj zog los ntawm kev kho cua sov, muaj zog corrosion kuj, thiab siv rau riam, cuab yeej phais, wrenches thiab turbines. Stainless hlau yog ib qho khoom sib xyaw (alloy), tsis yog ib yam khoom ntshiab. Austenitic stainless hlau vim qhov sib ntxiv ntawm ntau dua chromium thiab npib tsib xee hauv cov hlau, cov qauv sab hauv ntawm cov hlau nthuav tawm cov qauv hu ua austenite, uas tsis muaj qhov sib nqus permeability thiab tsis tuaj yeem nyiam los ntawm cov hlau nplaum. Ferritic stainless hlau thiab martensitic stainless hlau yog ferromagnetic. Uas yog hais, cov ntsiab lus ntawm ferromagnetic tshuaj nyob rau hauv austenitic stainless hlau yog tsawg, yog li nws tsis yooj yim los yog tsis tuaj yeem nyiam los ntawm cov hlau nplaum; Thaum cov ntsiab lus ntawm ferromagnetic tshuaj nyob rau hauv ferritic stainless hlau thiab martensitic stainless hlau yog qhov siab, lawv tuaj yeem nyiam los ntawm cov hlau nplaum.
Stainless hlau puas yuav nyiam los ntawm cov hlau nplaum?
Feb 09, 2023
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