Txij li ntawm cov khoom sib xyaw mus rau cov duab, ntau yam tseem ceeb cuam tshuam rau cov yam ntxwv ntawm cov khoom siv hlau tsis xeb. Ib qho tseem ceeb tshaj plaws yog qib hlau twg yuav siv. Qhov no yuav txiav txim siab ntau yam ntxwv thiab, thaum kawg, ob qho tib si tus nqi thiab lub neej ntawm koj cov khoom siv hlau tsis xeb.
Yog li koj paub li cas tias yuav pib qhov twg?
Txawm hais tias txhua daim ntawv thov yog txawv, cov lus nug 7 no qhia txog cov kev xav tseem ceeb los pab koj xaiv cov kev xaiv thiab nrhiav cov qib zoo tshaj plaws rau koj cov kev xav tau lossis daim ntawv thov.
1. Kuv cov hlau xav tau hom kev tiv thaiv dab tsi?
Thaum koj xav txog cov hlau tsis xeb, thawj yam uas koj xav txog yog qhov tiv taus cov kua qaub thiab cov chlorides - xws li cov uas pom muaj nyob rau hauv kev siv hauv kev lag luam lossis cov chaw nyob hauv dej hiav txwv. Txawm li cas los xij, qhov kub thiab txias kuj yog ib qho tseem ceeb uas yuav tsum xav txog.
Yog tias koj xav tau kev tiv thaiv xeb, koj yuav tsum tsis txhob siv cov hlau ferritic thiab martensitic. Cov hlau stainless zoo tagnrho rau cov chaw muaj xeb suav nrog austenitic lossis duplex alloys xws li qib 304, 304L, 316, 316L, 2205, thiab 904L.
Rau cov chaw kub siab, cov qib austenitic feem ntau yog qhov zoo tshaj plaws. Kev nrhiav qib uas muaj cov chromium, silicon, nitrogen, thiab cov khoom tsis tshua muaj nyob hauv ntiaj teb yuav hloov pauv lub peev xwm ntawm cov hlau kom tiv taus qhov kub siab. Cov qib feem ntau rau cov chaw kub siab suav nrog 310, S30815, thiab 446.
Cov qib hlau Austenitic kuj zoo tagnrho rau qhov kub qis lossis qhov chaw cryogenic. Yog xav tau kev tiv thaiv ntxiv, koj tuaj yeem saib cov qib carbon qis lossis cov qib nitrogen siab. Cov qib uas siv rau qhov chaw kub qis suav nrog 304, 304LN, 310, 316, thiab 904L.
2. Kuv cov hlau puas yuav tsum tau ua kom du?
Cov hlau uas tsis muaj zog yuav tawg yooj yim yog tias ua haujlwm ntau dhau thiab ua rau nws ua haujlwm tsis tau zoo. Feem ntau, cov hlau martensitic tsis pom zoo. Ntxiv mus, cov hlau uas tsis muaj zog yuav tsis tuav nws cov duab thaum xav tau kev tsim khoom nyuaj lossis nyuaj heev.
Thaum xaiv ib hom hlau, koj yuav tsum xav txog hom hlau uas koj xav kom xa tuaj. Txawm koj xav tau cov pas nrig, cov pob zeb, cov hlau tuav lossis cov ntawv yuav txwv koj cov kev xaiv. Piv txwv li, cov hlau ferritic feem ntau muag ua cov ntawv, cov hlau martensitic feem ntau muag ua cov hlau tuav lossis cov pob zeb, thiab cov hlau austentic muaj ntau hom. Lwm cov hlau qib muaj ntau hom suav nrog 304, 316, 430, 2205, thiab 3CR12.
3. KUV COV HLAU PUAS YUAV TSUM TAU TXIAV TXIM?
Kev siv tshuab feem ntau tsis yog teeb meem. Txawm li cas los xij, kev ua haujlwm kom tawv tuaj yeem tsim cov txiaj ntsig tsis xav tau. Kev ntxiv cov sulfur tuaj yeem txhim kho kev siv tshuab tab sis txo qhov ua tau zoo, kev vuam thiab kev tiv thaiv xeb.
Qhov no ua rau kev nrhiav qhov sib npaug ntawm kev siv tshuab thiab kev tiv thaiv corrosion yog qhov tseem ceeb rau feem ntau cov txheej txheem tsim cov hlau tsis xeb ntau theem. Nyob ntawm koj cov kev xav tau, qib 303, 416, 430, thiab 3CR12 muab qhov sib npaug zoo los ntawm qhov twg los xaiv cov kev xaiv ntxiv.
4. KUV PUAS YUAV TSUM TAU WELD KUV COV HLAU STAINLESS?
Kev vuam cov hlau tsis xeb tuaj yeem ua rau muaj teeb meem—xws li kev tawg kub, kev tawg ntawm kev ntxhov siab, thiab kev xeb intergranular—nyob ntawm qib hlau siv. Yog tias koj npaj yuav vuam koj cov hlau tsis xeb, cov hlau austenitic yog qhov zoo tshaj plaws.
Cov qib carbon qis tuaj yeem pab tau ntxiv rau kev vuam thaum cov khoom ntxiv, xws li niobium, tuaj yeem ua kom cov hlau sib xyaw ruaj khov kom tsis txhob muaj kev txhawj xeeb txog kev xeb. Cov qib nrov ntawm cov hlau tsis xeb rau kev vuam suav nrog 304L, 316, 347, 430, 439 thiab 3CR12.
5. PUAS YUAV TSUM TAU KHO KOM SOV?
Yog tias koj daim ntawv thov xav tau kev kho cua sov, koj yuav tsum xav txog seb cov hlau sib txawv teb li cas. Cov yam ntxwv kawg ntawm qee cov hlau txawv heev ua ntej thiab tom qab kev kho cua sov.
Feem ntau, cov hlau martensitic thiab cov hlau uas ua kom tawv, xws li 440C lossis 17-4 PH, muab kev ua tau zoo tshaj plaws thaum kho cua sov. Ntau cov hlau stainless austenitic thiab ferritic tsis tuaj yeem tawv thaum kho cua sov thiab yog li ntawd tsis yog cov kev xaiv zoo tshaj plaws.
6. LUB ZOG HLAU DAB TSI YOG QHOV ZOO TSHAJ PLAWS RAU KUV DAIM NTAWV THOV?
Lub zog ntawm cov hlau yog ib qho tseem ceeb uas yuav tsum xav txog kom muaj kev nyab xeeb tshaj plaws. Txawm li cas los xij, kev them nyiaj ntau dhau tuaj yeem ua rau tus nqi tsis tsim nyog, qhov hnyav, thiab lwm yam uas ua rau pov tseg. Cov yam ntxwv ntawm lub zog yog teeb tsa los ntawm tsev neeg ntawm cov hlau nrog rau ntau yam kev hloov pauv muaj nyob rau hauv ntau qib.
7. TUS NQI UA NTEJ THIAB TUS NQI MUS IB TXHIS NTAWM COV HLAU NO HAUV KUV QHO SCENARIO YOG DAB TSI?
Tag nrho cov kev xav ua ntej no ua rau muaj lo lus nug tseem ceeb tshaj plaws hauv kev xaiv cov hlau tsis xeb - tus nqi tas mus li. Kev sib phim cov hlau tsis xeb rau koj qhov chaw nyob, kev siv thiab cov kev xav tau, koj tuaj yeem ua kom muaj kev ua haujlwm ntev thiab muaj nqis zoo kawg nkaus.
Ua tib zoo xav txog seb cov hlau yuav ua haujlwm li cas thaum lub sijhawm siv thiab cov nqi yuav cuam tshuam nrog kev saib xyuas lossis hloov pauv ua ntej txiav txim siab. Kev txwv cov nqi ua ntej yuav ua rau siv nyiaj ntau dua thaum lub sijhawm ntawm koj qhov project, khoom, qauv, lossis lwm yam kev siv.
Vim muaj ntau hom stainless hlau thiab cov qauv, kev muaj ib tug kws tshaj lij los pab qhia txog cov kev xaiv thiab tej yam tsis zoo yog ib txoj hauv kev zoo heev los xyuas kom koj tau txais txiaj ntsig zoo tshaj plaws rau kev nqis peev stainless hlau. Ua ib lub tuam txhab muab cov hlau stainless rau ntau tshaj 20 xyoo, Jindalai Steel Group yuav siv peb txoj kev paub los pab coj koj mus rau hauv cov txheej txheem yuav khoom. Saib peb cov npe ntawm cov khoom stainless hlau hauv online lossis hu xov tooj los tham txog koj cov kev xav tau nrog ib tug tswv cuab ntawm peb pab neeg.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-19-2022
