Stainless hlau 904L / UN tsis N08904 / 1.4539

904L stainless hlau yog ib tug puv cov roj av tsawg-carbon ntau yam stainless hlau nrog additive ntawm molybdenum thiab tooj liab. Nws cov nickel siab thiab chromium cov ntsiab lus ua rau nws corrosion resistant nyob rau hauv ob qho oxidizing thiab txo ib puag ncig. Tus tooj liab thiab molybdenum pab kom nws tiv taus pitting li zoo li crevice corrosion. Cov ntsiab lus npib tsib xee ua rau nws tiv taus chloride SCC thiab qhov feem tsawg ntawm cov pa roj carbon ua rau nws tiv taus kev cuam tshuam rau hauv cov corrosion. Nws suav hais tias yog qhov zoo tshaj plaws rau kev tuav cov sulfuric acid thiab phosphoric acid, tab sis thaum muaj qhov kub thiab txias nws yuav raug rau kev ntxhov siab corrosion. Nws muaj zoo machinability thiab weldability thiab tuaj yeem siv rau hauv cov hlab ntsha siab.

Vim tias cov ntsiab lus carbon ntawm stainless hlau ntawm stainless hlau ntawm stainless hlau ntawm stainless hlau 9}} 4L yog tsis muaj nag lossis kev kho mob kub. Qhov no tshem tawm txoj kev pheej hmoo ntawm kev cuam tshuam ntawm kev sib tshuam uas ib txwm tshwm sim tom qab kev kho cua sov thiab vuam. Vim yog lub siab chromium-npib tsib xee-molybdenum cov ntsiab lus thiab lwm yam ntawm 904L tuaj yeem raug txo qis xws li sulfuric thiab acid acids. Lub siab Nickel cov ntsiab lus tseem ua rau hauv qab tus nqi qis dua hauv lub xeev nquag. Hauv cov sulfuric acid nyob rau hauv cov ntsiab lus ntawm 0 ~ 98%, kev ua haujlwm ntawm 904L tuaj yeem yog siab li 40 degrees Celsius. Nyob rau hauv ntshiab phosphoric acid nyob rau hauv cov ntsiab lus ntawm 0 ~ 85%, nws corrosion tsis kam yog qhov zoo heev. Hauv kev lag luam phosphoric acid tsim los ntawm cov txheej txheem ntub dej, cov impterities muaj cov nyhuv muaj zog ntawm corrosion tsis kam.

Ntawm txhua qhov ntau phosphoric acids, 904L inox yog ntau corrosion tiv taus tshaj li niaj hnub stainless hlau. Nyob rau hauv muaj zog oxidizing nitrical nitric storm, 904L stainless hlau muaj qis dua yas cov qib uas tsis muaj molybdenum. Hauv hydrochloric acid, kev siv ntawm 904L yog txwv rau qis dua ntawm {{3%. nyob rau hauv no concentration ntau yam. Lub corrosion tiv taus ntawm 904L yog qhov zoo dua li ntawm cov pa sib txawv. 904L steel muaj siab tsis kam rau pitting corrosion. Nws txoj kev tawm tsam rau cov crevice corrosion hauv chloride kev daws yog kuj zoo heev. Lub siab Nickel cov ntsiab lus ntawm 904L txo tus nqi ntawm corrosion hauv pits thiab crevices. Cov hlwv zoo ib yam li qub yuav muaj kev cuam tshuam rau kev kub ntxhov hauv cov chloride ib puag ncig nyob rau qhov kub siab dua los ntawm kev nce cov kab npib tsib xee ntawm cov hlau tsis muaj zog. Vim yog cov ntsiab lus nickel siab, stainless hlau 904L yog qhov muaj kev ntxhov siab rau cov kev daws teeb meem hydrofide thiab hydrogig sulfide cov chaw nplua nuj.

Melting taw tes: 1300-1390 degree
Ntws: 8 g / cm3

Vuam Performance
Zoo li cov hlau storless steel, 904 l tuaj yeem welded los ntawm ntau txoj kev vuam txoj kev. Feem ntau cov vuam vuam yog phau ntawv arc vuam lossis inert roj thaiv hluav taws xob vuam. Cov hlau hluav taws xob lossis hlau hlau yog ua raws li cov muaj pes tsawg ntawm cov hlau hauv paus thiab muaj cov kev coj dawb huv dua. Cov ntsiab lus ntawm Molybdenum yog siab tshaj qhov ntawm lub hauv paus hlau. Preheating feem ntau tsis tas yuav tsum ua ntej vuam, tab sis nyob rau hauv cov kev ua dej tawm sab nraum zoov, txhawm rau kom tsis txhob hws ntawm cov dej hauv dej, cov chaw sib koom ua ke lossis cov pob txha uas nyob ib sab tuaj yeem ua kom mob siab. Nco ntsoov tias cov ntsuas kub hauv zos yuav tsum tsis pub dhau 100 degree, yog li tsis ua rau cov pa agglomeration thiab ua rau muaj kev sib tshuam. Thaum vuam, nws raug nquahu kom siv cov kab me me, txuas ntxiv thiab nrawm vuam. Feem ntau, tsis muaj kev kho cua sov yog qhov yuav tsum tau tom qab vuam. Yog tias yuav tsum tau kho cua sov, nws yuav tsum tau ua kom sov rau 1100-1150 degree thiab tom qab ntawd txias sai.

Luam ntawv
Cov yam ntxwv machining ntawm 904L zoo ib yam li lwm cov neeg Austhenitic Stainless hlau, thiab muaj ib qho kev nyiam rau cov cuab yeej thiab ua haujlwm tawv thaum lub tshuab ua haujlwm. Yuav tsum tau siv cov cuab yeej carbide gatened carbide, thiab vulcanized thiab chlorinated roj yog siv los ua kom txias. Cov cuab yeej siv thiab cov txheej txheem yuav tsum yog ua raws li kev ua haujlwm ntawm txo kev ua haujlwm hnyav. Thaum lub sij hawm txiav, qeeb kev ceev thiab pub tus nqi yuav tsum zam.

Cov txheej txheem ntau lawm
Raws li cov khoom lag luam dav dav-tiv thaiv, cov ntawv luam tawm, uas tuaj yeem siv tau hauv ntau lub teb, uas tuaj yeem siv tau hauv cov khoom siv kev lag luam zoo, cov tais diav hauv chav ua noj thiab kev lag luam siv hluav taws xob thiab kev lag luam siv hluav taws xob. Kev siv ntawm txhua daim teb yog txawv, thiab kev ua tau zoo ntawm cov khaub thuas txias stainless hlau 904L stainless hlau kuj txawv. Tshwj xeeb tshaj yog thaum tuab ntawm stainless hlau sawb yog me me, nws yog ib qho tseem ceeb heev los nrhiav nws qhov kev ua haujlwm ntxim nyiam heev. Los ntawm kev txheeb xyuas cov cawv uas dov thiab cov txheej txheem annealing ntawm nws cov khoom thiab cov khoom siv, thiab kev sim cov ntaub ntawv tuaj yeem muab rau cov ntaub ntawv txhim kho thiab kev ua tau zoo.
 

* Roj av, cov khoom siv roj petrochemical, xws li reactors hauv cov khoom siv roj petrochemical, thiab lwm yam.
* Cia thiab tsheb thauj khoom rau cov sulfuric acid, xws li kev hloov cua sov, thiab lwm yam.
* Flue Gas Ras Desulfurization ntaus ntawv ntawm lub zog nroj tsuag feem ntau yog siv hauv cov ntu hauv qab no: Qhov system ntauwd, tshuaj txau, thiab lwm yam ntawm cov pej thuam nqus.
* Scrubbers thiab kiv cua hauv cov organic acid kho tshuab.
* Cov cuab yeej siv dej hiav txwv dej hiav txwv, cov khoom siv hluav taws xob tiv thaiv dej, cov kua txiv ntoo, cov hlab ntsha, cov khoom siv siab, khoom siv cov khoom noj.
* Kws Tshuaj Nroj Tsuag: Centrifuges, Reactors, thiab lwm yam.
* Cog Khoom Noj: Khoom siv
* 904L yog cov qauv hlau sib piv rau cov muaj zog corrosive nruab nrab ntawm dilute sulfuric acid.

Cim npe nrov: Stainless hlau 904L / UN tsis muaj N08904 / 1.4539, Tuam Tshoj Stainless Hlau 904L / 1.4539 Cov Chaw Tsim Tshuaj, Cov Chaw Tsim Khoom