Cov tseem ceeb ntawm253ma Yeeb NkabKev dag nyob rau hauv nws zoo heev siab - kub oxidation tsis kam thiab ruaj khov siab- kub cov khoom siv. S30815 tuaj yeem siv tau ntev nyob rau hauv ntev ntev nyob rau hauv kev ua hauj lwm tas mus li ntawm 800}}}}}}}}}}}}}}} kub flue roj, molten ntsev, thiab sulfides. Ht yeeb nkab yog as30815 yeeb nkabCov chaw muag khoom nrog 15+ export kev paub.Tiv Tauj PebXav paub ntau ntxiv thiab hais rau DAWB!
SS thiab 1.48280 siab -} kub cov khoom siv
High - kub tensile lub zog:Thaum 800 degree, lub tensile lub zog yog ntau dua los yog sib npaug zos yog ntau dua los yog sib npaug ntawm 14MPA, yog li ntawm 14MPA, yog li cas ntawm 14MPA, yog li ntawm 14MPA, yog li ntawm 14MPA ntau dua lossis sib npaug ntawm 1000℃≈100mpa).
High - qhov kub nkag siab:Nyob rau hauv cov xwm txheej ntawm 900℃thiab 1000 teev thiab 1000 teev siab dua los yog sib luag ntawm 1 mpa kom deb li ntawm 25 MPa
High -} Cov Yooj Yim:Thaum 800 degree, lub elongation loj dua los yog sib npaug ntawm 25%, muaj ntau dua los yog sib npaug nrog kev siv hluav taws xob siab dua lossis sib npaug rau 3D.
ASTM A 312 253 ma yeeb nkab ua kev ua tau zoo
Vuam Performance:Sib txuam vuam hlau (piv txwv li, er308LSI, ER310Si) lossis vuam qws (piv txwv li, e308 12) yuav tsum raug xaiv. Preheard tsis tas yuav tsum ua ntej vuam (thaum lub ambient kub yog ntau dua los yog sib npaug rau 0 degree). Lub interpais kub yuav tsum tau tswj kom tsawg dua lossis sib npaug rau 150℃kom tsis txhob muaj nplej ntawm cov cua sov-cuam tshuam.
Tsis muaj kev kho cua sov yog qhov yuav tsum tau tom qab vuam (tshwj tsis yog siv rau cov ntawv thov uas xav tau kev tiv thaiv kom muaj kev txhim kho). Lub siab - kub tensile zog ntawm welded sib koom tes (ntau dua los yog sib npaug ntawm 1000 degree) yog qhov tseem ceeb tib yam li ntawm cov khoom siv.
Ua kev ua tau zoo:Nws tuaj yeem tsim tau siv cov txheej txheem xws li Kub Extrusion (Cua sov kub 1150-1200 degree) thiab txias kos duab (haum rau me me thiab nruab nrab ntawm cov kav dej). Tom qab ua haujlwm txias, daws kev kho (ntsuas kub (ntsuas kub
Machining kev ua tau:Vim tias cov khoom siv lub hardness yog ze rau ntawm xyoo 304 stainless hlau, siab- cov cuab yeej ceev nrawm tuaj yeem siv rau kev txiav. Kev txiav ceev ntawm 80-120 m / min yog pom zoo. Kev ua kom txias txias thiab lubrication yog qhov tsim nyog los txo qhov kev hnav.
Ua txheej txheem
Thaum tshav kub kub ss253ma steel billet rau 1150-1200℃(tuav lub sijhawm nyob ntawm lub billet inchet, tuav rau 30mm ntawm txoj kab uas hla) kom ua tiav tag nrho cov yas.
Extrudude lub based billet los ntawm kev tuag siv tus extruder los ua lub hollow raj dawb paug. Tswj cov extrusion ceev ntawm 50-80 mm / min kom ntseeg tau cov phab ntsa uas tuab (khib nyiab tsawg dua lossis sib npaug ntawm 5%).
Cov yeeb nkab dawb paug yog sizing (kho cov taub rau sab nraud kom siv lub tshuab siziaces) thiab ncaj qha} ntev ntev 6-12M, kev cai ntev muaj nyob ntawm kev thov).
UNT TSIS YOG U30815 YEEB NKAB VUAM
Ss253ma kub - rolled steel phaj yog txiav rau hauv cov kav hlau, uas yog tom qab ntawd yob rau hauv cov xaim uas siv cov yeeb nkab dov tshuab. Ncaj ib leeg vuam yog ua tau siv tig vuam (tungsten inert roj vuam) ua kom muaj kev sib tw weld yog dawb ntawm porosity thiab tsis tiav kev nkag mus.
Tom qab vuam, cov yeeb nkab yog loj zuag qhia tag nrho (lub inner inner yog nce rau lub hom phiaj kev ntxhov siab (roundness sib txawv tsawg dua lossis sib npaug ntawm 1% ntawm nominal diameter).
SS253AFA YEEB YEEB NKAB SURN
Acid pickling thiab passivation:Nws yuav siv nyob rau hauv high - kub corrosion ib puag ncig xws li muaj cua sov thiab cua sov sib pauv. Tus txheej txheem no cuam tshuam cov yeeb nkab hauv kev sib xyaw ntawm 10% -15% nitric kua qaub thiab 2-30 feeb los tshem tawm cov chaw saum npoo av thiab roj.
Tom qab ntawd, immersing hauv 5% nitric acid daws (chav sov) rau 30 feeb rau passivation. Hauv cov kauj ruam no nws yuav tsim cov khaub ncaws hnav khaub ncaws zaj duab xis nyob rau saum npoo uas tuaj yeem txhim kho corrosion tsis kam ntawm chav tsev kub. Tom qab kho, cov yeeb nkab nto yog silvery- dawb, tsis muaj xim daj lossis dub.
Tua peening:Nws tuaj yeem siv rau hauv cov ntawv thov uas yuav tsum tau ua kom tau zoo sab nrauv. Tua cov Panening yog ua siv siv stainless hlau tua nrog txoj kab uas hla ntawm 0.2-0.5mm los ua tiav qhov nplaum ntawm txheej ntawm txheej thiab substrate.
Sab hauv phab ntsa polishing:Hauv kev huv si thiab siab -} pa hluav taws xob xws li cov khoom noj thiab cov tshuaj siv hluav taws xob tau ua tiav rau ntawm phab ntsa sab hauv lossis sib npaug nrog 0.8μm, txo qis cov kev tshaj tawm hauv GMP.
