Stainless hlauyog ib hom hlau, hlau hais txog tus nqi ntawm cov pa roj carbon (c) hauv cov hauv qab no 2% yog hu ua hlau, ntau dua 2% yog hlau. Steel nyob rau hauv cov txheej txheem smelting ntxiv ntxiv chromium (CR), Nickel (MN), Li), silany (Si) Ib qho kev tawm tsam xeb (uas yog, tsis xeb) yog peb ib txwm hais tias stainless hlau.
Stainless hlau nyob rau hauv cov txheej txheem smelting, vim qhov sib ntxiv ntawm cov ntsiab lus ntawm ntau yam, sib txawv ntau yam ntawm cov nyiaj. Nws cov yam ntxwv kuj sib txawv, txhawm rau paub qhov txawv ntawm cov yas ntawm cov lej hlau sib txawv.
Feem ntau kev faib tawm ntawm Stainless Hlau
1. 304 stainless hlau
304 stainless hlau yog cov khoom siv hlau ntau tshaj plaws, ua cov siv dav dav hlau, muaj qhov zoo corrosion tsis kam, kub tsis kam, cov khoom siv hluav taws xob; Stamping, dabtsi yog khoov thiab lwm yam thermal txheej txheem muaj peev xwm yog qhov zoo, tsis muaj kev sib nqus, ces siv qhov kub -196 ℃ ~ 800 ℃).
Cov lus thov ntawm daim ntawv thov: Cov khoom hauv tsev (1, 2 chav tsev, khoom siv sab hauv tsev, cov cua sov, dej da); Nws pib seem (cua daj cua dub, muffler, pwm); Cov khoom siv kho mob, cov ntaub ntawv tsim tsev, cov chemistry, kev lag luam khoom noj, ua liaj ua teb, nkoj ntu
2. 304l stainless hlau (l yog cov pa roj av)
Raws li cov pa roj carbon ntev li 304, hauv lub xeev dav dav, nws cov xeb ua kom zoo sib xws, tab sis tom qab kev cuam tshuam rau cov hmoov nplej muaj peev xwm zoo heev; Nyob rau hauv rooj plaub ntawm tsis muaj kev kho cua sov, kuj tseem tuaj yeem tswj hwm kev ua kom haum corrosion zoo, kev siv ntsuas kub -196 ℃ ~ 800 ℃.
Cov tshuaj ntawm daim ntawv thov: siv hauv kev lag luam, thee thiab roj av cov khoom siv ntawm sab nraum zoov thiab qhov chaw nrog kev nyuaj hauv kev kho cua sov.
3. 316 Stainless Hlau
316 stainless hlau vim hais tias ntxiv ntawm kev ntxiv ntawm molybdenum, yog li nws corrosion tsis kam thiab siab kub yog qhov tshwj xeeb, tuaj yeem siv nyob rau hauv cov xwm txheej hnyav; Kev ua haujlwm zoo heev ua haujlwm hnyav (tsis sib nqus).
Tau cov khoom siv ntawm daim ntawv thov: cov khoom siv dej hiav txwv, tshuaj lom neeg, ntawv ua, oxalic acid, chiv thiab lwm yam khoom siv ntau lawm; Cov duab thaij duab, kev lag luam khoom noj khoom haus, cov chaw ntawm ntug dej hiav txwv, hlua, CD pas nrig, bolts, neeg rau.
4. 316l stainless (l yog cov pa roj av)
Raws li cov carbon series ntawm 316 hlau, ntxiv rau tib yam ntxwv nrog 316 hlau, nws txoj kev tiv taus rau cov hmoov nplej conrosary tau zoo heev.
Cov uas tau txais daim ntawv thov: Cov cai tshwj xeeb los tawm tsam cov khoom sib cog qoob loo ciam tsis sib haum.
Kev sib piv sib piv
1. Tshuaj lom neeg sib xyaw
Stainless hlau 316 thiab 316L yog molybdenum uas muaj cov hlau tsis muaj hlau. Lub molybdenum cov ntsiab lus ntawm 316L stainless hlau yog siab me ntsis siab dua li ntawm 316 stainless hlau. Vim yog molybdenum nyob rau hauv cov hlau, tag nrho cov kev ua tau zoo ntawm cov hlau yog qhov zoo dua 310 thiab 304 stainless hlau. Nyob rau hauv cov kev mob siab, thaum cov concentration ntawm sulfuric acid tsawg dua 15% thiab ntau dua 85%, 316 stainless hlau muaj ntau yam ntawm kev siv. 316 Stainless hlau kuj muaj cov khoom zoo thiab chloride zoo thiab chloride cov khoom, yog li nws feem ntau siv hauv cov av marine. 316L stainless hlau muaj qhov siab tshaj plaws cov ntsiab lus carbon ntau ntawm 0.03. Haum rau cov ntawv thov uas tom qab Weld annealing tsis tau thiab qhov twg siab corrosion tsis kam.
2. Cotej ntug kev
Lub corrosion tsis kam ntawm 316 stainless hlau yog qhov zoo dua li ntawm 304 stainless hlau. Nws muaj zoo corrosion tsis kam nyob rau hauv cov txheej txheem ntau lawm ntawm pulp thiab ntawv. Thiab 316 Stainless hlau kuj tseem tiv taus cov tub rog thiab txhoj puab heev. Nyob rau hauv dav dav, 304 stainless hlau thiab 316 Stainless hlau nyob rau hauv lub qhov tsis kam mus rau tshuaj corrosion thaj tsam ntawm qhov txawv me me, tab sis hauv qee cov xov xwm tshwj xeeb yog sib txawv.
304 Stainless hlau yog Ameslikas tau tsim, uas rhiab rau pitting corrosion nyob rau qee kis. Ntxiv ib qho ntxiv 2-3% Molybdenum txo cov rhiab no, ua rau 316. Ntxiv rau, cov molybdenum no tuaj yeem txo cov xeb ntawm qee cov organic cov organic.
316 Stainless hlau yuav luag los ua cov khoom txheem hauv cov khoom noj thiab dej haus kev lag luam. Vim yog thoob ntiaj teb tsis txaus ntawm Molybdenum thiab cov ntsiab lus tsib txhiab xyoo hauv 316 Stainless hlau, 316 Stainless hlau yog ntau dua 304 stainless hlau.
Pitting corrosion yog ib qho tshwm sim los ntawm corrosion tso rau saum npoo ntawm stainless hlau, uas yog vim tias tsis muaj pa oxygen thiab tsis tuaj yeem tsim txheej tiv thaiv ntawm chromium oxide. Tshwj xeeb tshaj yog nyob rau hauv me me li qub, muaj txoj hmoo ntawm kev tso nyiaj ntawm disc, yog li pitting yog tsawg.
Hauv ntau hom dej nruab nrab (dej tsis sib xws, dej ntws, dej dej, thiab lwm yam. Tsuas yog cov ntsiab lus ntawm chloride ion hauv nruab nrab yog Siab heev, lub sijhawm no 316 Stainless hlau yog qhov tsim nyog dua. Feem ntau, cov xeb tsis kam ntawm 304 stainless hlau tsis tshua txawv, tab sis qee qhov yuav txawv heev, yuav tsum tau txheeb xyuas ib rooj plaub.
3. Cua sov kuj
316 Stainless hlau muaj cov tshuaj oxidation zoo tsis kam nyob rau hauv kev siv qis dua 1600 degrees thiab kev siv tas mus li hauv qab 1700 degrees. Nyob rau hauv thaj tsam ntawm 800-1575 degrees, nws yog qhov zoo tshaj plaws tsis yog yuav txuas ntxiv ua ke ntawm 316 stainless hlau tsis muaj cua sov kuj. 316L stainless hlau tau zoo tsis kam mus rau carbide nag lossis ntau dua 316 stainless hlau, uas tuaj yeem siv rau hauv qhov ntsuas kub saum toj no.
4. Kev kho cua sov
Annealing yog ua nyob rau hauv qhov ntsuas kub ntau 1850 txog 2050 degrees, ua raws li los ntawm kev txhawb nqa sai sai thiab tom qab ntawd txias. 316 Stainless hlau tsis tuaj yeem ua rau tawv tawv.
5. Lub Vuam
316 Stainless hlau tau muaj peev xwm weld zoo. Txhua txoj kev vuam cov qauv siv tau rau vuam. Raws li lub hom phiaj ntawm vuam, lub 316L, 316L lossis 309cb stainless hlau packing qws lossis electrode tuaj yeem siv rau vuam. Txhawm rau kom tau txais cov corrosion zoo tshaj plaws, kev siv vuam ntawm 316 stainless hlau yuav tsum tau annealed tom qab vuam. Post Weld annealing tsis tas yog 316L stainless hlau siv.
Tus poj niamStainless Hlau Seamless TubingSiv 316L cov khoom siv. Lwm lwm cov raj fittings thiab li qub feem ntau siv 316 cov khoom siv.
Lub sijhawm Post: Feb-23-2022