Stainless hlau tuaj yeem pom txhua qhov chaw hauv lub neej, thiab muaj txhua hom qauv uas yog ua dag kom paub qhov txawv. Niaj hnub no qhia rau koj ib tsab xov xwm kom paub meej cov ntsiab lus kev paub ntawm no.
Stainless hlau yog cov lus luv ntawm stainless acid-resistant steel, dej thiab lwm yam hlau tsis muaj zog corrosive lossis stainless hlau yog lub npe hu ua stainless hlau; Thiab yuav tiv taus cov tshuaj lom neeg corrosive media (acids, ntsev, thiab lwm yam tshuaj impregnation) corrosion ntawm cov hlau yog hu ua cov roj acid-resistant hlau.
Stainless hlau hais txog huab cua, chav dej, dej thiab lwm yam tshuaj lom neeg tawm suab corrosion corrosion, tseem hu ua steel acid-resistant hlau. Hauv kev xyaum, feem ntau tsis muaj zog corrosive media corrosion-resistant steel hu ua tshuaj me me corrosion-resistant steel hu ua acid-resistant hlau. Vim tias qhov sib txawv ntawm cov tshuaj lom neeg muaj pes tsawg leeg ntawm ob, cov qub yog tsis tas yuav tsum tshuaj lom neeg corrosion, thaum lub tom kawg feem ntau stainless. Cov corrosion tsis kam ntawm stainless hlau nyob ntawm lub ntsiab lus alloy muaj nyob hauv cov hlau.
Tib Neeg Kawm
Raws li cov koom haum metallurgical
Feem ntau, raws li lub koom haum metallurgical, feem ntau stainless hlau tau muab faib ua peb pawg: Austenitic stainless hlau thiab martensitic stainless hlau. Ntawm lub hauv paus ntawm cov txheej txheem metallurgical ntawm peb pawg, cov hlau loj, nag lossis daus muaj zog rau cov kev xav tau tshwj xeeb thiab cov hom phiaj.
1. Austenitic Stainless Hlau
Lub matrix mus rau lub ntsej muag ciry crystal crystal qauv ntawm lub koomhaum tsis muaj zog (thiab tej zaum yuav ua rau muaj kev sib nqus txias (thiab tej zaum yuav ua rau muaj qee qib ntawm cov hlau nplaum) ntawm cov hlau stainless. American hlau thiab Hlau Institute mus rau 200 thiab 300 series ntawm cov ntawv sau ua zauv, xws li 304.
2. Ferritic Stainless Hlau
Matrix mus rau lub cev-enced cubic crystal qauv ntawm ferrite, feem ntau tsis tuaj yeem ua rau nws muaj zog me ntsis tuaj yeem ua rau muaj zog me me stainless. Miskas hlau thiab steel koom haum rau 430 thiab 446 rau daim ntawv lo.
3. Martensitic Stainless hlau
Lub Koom Haum Matrix yog Martensitic lub koom haum (lub cev-lub cev sau lo lus lossis cubic), sib nqus, sib nqus, sib nqus, sib nqus, sib nqus tau kho nws cov khoom siv hluav taws xob ntawm stainless hlau. Miskas hlau thiab steel koom haum rau 410, 420, thiab 440 cov nuj nqis cim. Martensite muaj lub koom haum Austenicic nyob rau ntawm qhov kub, uas tuaj yeem hloov mus rau martensite (piv txwv li tawv) thaum txias mus rau chav tsev kub ntawm tus nqi tsim nyog.
4. Austenitic a ferrite (duplex) hom stainless hlau
Cov Matrix muaj ob qho tib si lub koom haum ob-theem, muaj zog tshaj li 15%, tuaj yeem sib nqus, sib nqus, ua haujlwm sib nqus, tuaj yeem ua haujlwm txias, 329 yog ib txwm zoo li cov hlau stainless. Compared with austenitic stainless steel, duplex steel high strength, resistance to intergranular corrosion and chloride stress corrosion and pitting corrosion are significantly improved.
5. Nag los ua daus hardening stainless hlau
Cov Matrix yog Austenitic lossis Martensitic lub koom haum, thiab tuaj yeem ua rau muaj kev kho mob hnyav los ua kom nws tawv stainless hlau. Miskas hlau thiab steel koom haum rau 600 series ntawm cov ntawv cim digital, xws li 630, uas yog, 17-4-4.
Nyob rau hauv dav dav, ntxiv rau alloys, lub corrosion tsis zoo ntawm Austenitic Stainless hlau, koj tuaj yeem siv Martensic stainless hlau thiab nag lossis daus cov tawv tawv tawv.
Cov yam ntxwv thiab siv
Cov txheej txheem deg
Thickness distintertion
1. Vim tias cov hlau zeb zeb tshuab hauv cov txheej txheem Rolling, cov qaws yog rhuab los ntawm kev dov tawm lub phaj tuab sib txawv, feem ntau tuab hauv nruab nrab ntawm ob sab ntawm nyias. Hauv kev ntsuas cov tuab ntawm lub phaj ntawm lub xeev yuav tsum tau ntsuas hauv nruab nrab ntawm cov phaj taub hau.
2
V. Kev Tsim Kho, Tshuaj Ntsuam Xyuas
1. Yeeb Nkab Phaj
① Spliced raj phaj pob tw pob qij txha ua ke rau 100% Ray soj ntsuam lossis siv cov qib hluav taws xob: RT: ⅱ Siv: ⅰ qib;
② Ntxiv nrog rau cov hlau stainless, cov phaj sib txig sib txig ua kom muaj kev kho kom sov;
③ Raj phaj lub Choj Dav Dav Dav Hlau Devience: Raws li cov mis rau qhov ntsuas ntawm lub qhov: B = (S - D) - D1
Tsawg kawg qhov dav ntawm lub qhov choj: b = 1/2 (s - d) + c;
2. Tube box kub kev kho mob:
Carbon Steel, Qis Alloy Alloy Steel welded nrog ib qho kev sib faib ntawm lub thawv yeeb nkab loj dua li 1/3 ntawm lub thawv hauv qab hluav taws xob yuav tsum tau ua tiav tom qab kev kho cua sov.
3. Kuaj Siab
Thaum lub plhaub txheej txheem tsim kev tsim siab yog qis dua cov txheej txheem raj kom siab, txhawm rau kuaj xyuas qhov zoo ntawm cov cua sov ua kom sov thiab raj phaj sib txuas
① Plhaub txoj haujlwm siab kom nce qhov kev ntsuas siab nrog cov yeeb nkab programnab ua ke nrog cov kev kuaj hniav hauv hydraulic, txhawm rau tshuaj xyuas seb cov tshuaj txhuam hniav ua ke tas. (Li cas los xij, nws yog ib qho tsim nyog los xyuas kom meej tias thawj zaj duab xis ntxhov siab ntawm lub plhaub thaum lub taub hau hydraulic yog ≤0.9RELφφ)
② Thaum cov qauv saum toj no tsis tsim nyog, lub plhaub tuaj yeem ua cov pob zeb hydrostatic raws li kev sim ua ke, thiab tom qab ntawd lub plhaub rau kev kuaj mob ammonia.
Dab tsi ntawm stainless hlau tsis yooj yim rau xeb?
Muaj peb qhov tseem ceeb uas cuam tshuam rau kev xeb ntawm cov hlau stainless:
1.Qhov cov ntsiab lus ntawm alloy cov ntsiab. Feem ntau hais lus, cov ntsiab lus ntawm chromium hauv 10.5% steel tsis yooj yim rau xeb. Lub siab dua cov ntsiab lus ntawm chromium thiab nickel corrosion kuj yog qhov zoo dua, xws li 304 cov khoom siv cov ntsiab lus ntawm 18%) ~ 20%, xws li stainless hlau nyob rau hauv dav dav tsis xeb.
2. Cov txheej txheem smelting ntawm cov chaw tsim tshuaj paus yuav tseem cuam tshuam rau corrosion tsis kam ntawm cov hlau stainless. Smelting thev naus laus zis yog qhov zoo, cov cuab yeej siv tau zoo heev, yog li cov khoom lag luam tsis muaj zog, yog li cov khoom lag luam zoo nkauj yog qhov ruaj khov thiab txhim khu kev qha, tsis yooj yim rau xeb. Ntawm qhov tsis sib xws, qee cov khoom siv nroj me me yooj yim, cov txheej txheem rov qab, impurities tsis tuaj yeem raug tshem tawm, kev tsim cov khoom yuav muaj xeb tsis muaj xeb.
3. Ib puag ncig sab nraud. Lub chaw qhuav thiab cua sov tsis yooj yim rau xeb, thaum huab cua ntub, lossis huab cua los nag thiab av ib puag ncig yog qhov yooj yim rau xeb. 304 Cov khoom siv hlau Stainless, yog tias ib puag ncig ib puag ncig tsis zoo dhau lawm kuj yog xeb.
Stainless hlau xeb Nkaj yuav ua li cas?
1.Qhov Txujci
Nrog pickling muab tshuaj txhuam lossis tshuaj tsuag los pab nws cov xeb kom rov qab ua rau muaj cov kuab paug thiab cov duab acid, nws yog qhov tseem ceeb heev kom nqa tawm cov dej yaug kom huv. Tom qab txhua yam yog ua tiav thiab rov-polished nrog polishing cov khoom siv, nws tuaj yeem kaw nrog polishing ciab. Rau hauv zos me ntsis xeb kuj tseem siv tau 1: 1 petrol, roj sib tov nrog lub rag huv si los so tawm ntawm cov xeb hnoos qeev.
2. Cov Txheej Txheem Cov Txheej Txheem
Sandblasting tu, tu nrog iav lossis tej nroj tsuag tawg, obliteration, txhuam hniav thiab polishing. Cov kev siv tshuab muaj lub peev xwm los so cov khoom paug los ntawm cov ntaub ntawv tshem tawm yav tas los, cov ntaub ntawv sau polishing lossis tau txiav txim. Txhua yam kev paug, tshwj xeeb tshaj yog cov hlau txawv teb chaws, tuaj yeem yog qhov chaw ntawm kev xeb, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig huab cua. Yog li no, cov tshuab ntxuav tshuab yuav tsum tau ntxuav kom huv nyob rau hauv cov kev mob qhuav. Kev siv cov qauv siv tshuab tsuas yog ntxuav nws cov nplaim thiab tsis hloov pauv cov xeb tawm ntawm cov khoom nws tus kheej. Yog li, nws pom zoo kom rov polish nto nrog cov khoom siv polishing thiab kaw nws nrog cov siv quav ciab tom qab tu tshuab.
Cov cuab yeej siv feem ntau yog siv stainless hlau qib thiab cov yam ntxwv
1.304 stainless hlau. Nws yog ib qho ntawm cov tshuaj tua kab mob uas tsis muaj zog nrog cov ntawv sau loj thiab cov khoom siv acid, ntau yam khoom siv tsis sib haum, cov khoom siv tsis muaj zog, cov khoom siv tsawg.
2.304l stainless hlau. Txhawm rau daws qhov cr23C6 los nag nyob rau hauv ib co mob uas muaj kev sib cav sib ceg thiab cov roj ntsha uas muaj kev cuam tshuam loj dua yog qhov ua kom zoo dua li 304 stainless hlau. Ntxiv nrog rau me ntsis qis zog, lwm yam khoom nrog 321 stainless hlau, siv tau rau kev kho cov khoom siv ntau yam cuab yeej.
3.304h stainless hlau. 304 stainless hlau sab hauv qab teb, carbon massion feem hauv 0.04% ~ 0.10%, kev ua tau zoo dua 304 stainless hlau.
4.316 stainless hlau. Hauv 10cr18ni12 raws li qhov sib ntxiv ntawm molybdenum, kom cov steel muaj zoo tsis kam txo cov xov xwm tsis kam. Nyob rau hauv seaterater thiab lwm yam xov xwm, corrosion kuj zoo dua li 304 stainless hlau, tsuas yog siv rau pitting corrosion resistant cov ntaub ntawv.
5.316l stainless hlau. Ultra-Tsawg Cov Tshuaj Siv Roj Hlau, nrog rau kev ua kom zoo nyob rau hauv cov khoom tuab thiab cov khoom siv petrochemical hauv cov khoom siv roj corrosion-resistant cov ntaub ntawv.
6.316h Stainless hlau. Sab hauv ceg ntawm 316 stainless hlau, carbon matural feem ntawm 0.04% -0.10%, kev ua tau zoo tshaj 316 stainless hlau.
7.317 Stainless hlau. Pitting corrosion thiab creep tsis zoo tshaj 316L stainless hlau, siv hauv kev tsim cov roj petrochemical thiab organic acid corrosion resistant khoom.
8.321 stainless hlau. Titanium stabilized ustenitic stainless hlau, ntxiv cov titegranular cov khoom siv tsis zoo, thiab muaj cov pa roj carbon-tsawg Ntxiv nrog rau qhov kub thiab txias lossis hydrogen corrosion tsis kam thiab lwm lub sijhawm tshwj xeeb, qhov teeb meem dav dav tsis pom zoo.
9.347 stainless hlau. Niobium-stabilized ustenitic stainless hlau, cov ntaub ntawv sib txawv, cov ntaub ntawv sib txawv, xws li kev tsim khoom siv hluav taws xob, cov raj hluav taws xob, hluav taws xob, kev sib pauv cua sov, Shafts, muaj cov chaw ua kom sov nyob rau hauv lub cub tawg thiab cua sov tub raum sov thiab yog li ntawd.
10.904L stainless hlau. Super tiav Austenitic Stainless Hlau, ib tus super ensenitic steel tsim los ntawm finland otter muaj tsawg dua li 0.02%, formic thiab nyob rau tib lub sij hawm muaj qhov zoo tsis kam Crevice corrosion thiab tiv taus rau kev ntxhov siab corrosion thaj chaw. Nws yog haum rau ntau qhov ntau ntawm cov sulfuric acid hauv qab 70 ℃, thiab muaj cov acid zoo li acid thiab acetic acid ntawm tej lub siab thiab txhua yam kub thiab txias thiab txhua yam kub. Tus txheej txheem ua asmesb-625 tus cwj pwm nws rau tsib xee-raws li alloys, thiab tus qauv tshiab nws ua rau hlau stainless. Tuam Tshoj tsuas yog kwv yees qib 015cr19NI26Mo5CU2 steel, xws li E + H's Massic Steel Hlau, Rolex Saib Cov Hlau Flaterming, Rolex Mloog Cov Hlau Tseem Siv Tau Siv 904L Stainless Hlau.
11.440C Stainless hlau. Martensitic Stainless Hlau, Hardenable Stainless hlau, stainless hlau nyob rau hauv lub siab tshaj plaws hardness, hardness HRC57. Mas siv nyob rau hauv kev tsim cov khoom muaj zog, bearings, li qub, valve, valve rooj, lub tsho, valve stems, thiab lwm yam ..
12.17-4ph tiag tiag hlau. Martensitic nag lossis daus ua rau tawv tawv, Hardness Hrc44, muaj lub zog siab, tsis tuaj yeem siv rau qhov kub siab dua 300 ℃. Nws muaj zoo corrosion tsis kam rau ob qho tib si atmospheric thiab ntsev tawm tsam yog tib yam li ntawm lub cev, thiab lub tshuab raj, cov noob, cov rooj zaum, cov kaus mom thiab cov roj av.
Hauv txoj haujlwm tshaj tawm, ua ke nrog cov teeb meem loj thiab cov nqi siv tsis tau zoo, 9042-347-3044-3321-3321-311 teg num rau xaiv 904L.
Hauv kev xaiv tus qauv tsim qauv thiab cov khoom siv cov yeeb nkab muaj peev xwm ua kom tau teeb meem rau cov khoom siv lossis tsim kom muaj kev sib tw tshwj xeeb, peb yuav tsum mus rau sab laj cov khoom siv kub thiab siab.
Nyob rau hauv qhov ntsuas tsim xaiv, feem ntau ntsib ntau yam sib txawv, series, xaiv cov txheej txheem stainless, kub, siab, siab thiab nqi thiab lwm yam kev xav.
Lub Sijhawm Post: Oct-11-2023