ER347 SS Hlau

347 Stainless Hlau yog ib tug Austenitic stainless hlau muaj niobium, uas ua kom pom zoo ua rau muaj kev cuam tshuam zoo rau kev txhim kho thiab siab- kub khov. Thaum vuam cov khoom siv no, cov kev ceev faj hauv qab no yuav tsum tau ua kom pom tseeb kom ntseeg tau tias voo zoo thiab ua tau zoo:

Txuam ntawm vuam consumables
Xaiv Vuam cov neeg siv khoom uas phim rau 347 tus hlau stainless, xws li xo hlau vuam (rau roj av hlau arc) lossis E347 electrodes (rau cov thaiv hlau arc vuam). Cov neeg siv no muaj Niobium, uas tuaj yeem tiv thaiv kev sib xyaw ntawm carbon thiab chromium, yog li tiv thaiv kev txhim kho corrosion.

Kev tswj nruj ua kom huv

Ua ntej vuam, kom huv si huv qhov zawj thiab saum npoo tsis pub dhau ib thaj tsam ntawm tsawg kawg 20mm ntawm ob sab ntawm cov zawj. Tshem tawm impurities xws li nplai, roj, noo noo, thiab pleev xim, lossis tshwj xeeb tu cov tshuaj txhuam, lossis cov kab nrib pleb, lossis tawg thaum lub sij hawm vuam.

Zam kev sib tiv tauj ntawm cov cuab yeej siv cov hlau thiab cov khoom siv tshuaj tua kab, ua cov kab hlau ua kom sib kis tau tuaj yeem ua rau kev xeb.

Khaws lub vuam hlau / hluav taws xob kom qhuav kom tsis txhob nqus dej noo.

Xaiv cov kev vuam tsim nyog
Ua ntej cov roj uas thaiv cov roj av vuam (piv txwv li, tig tungsten inert roj vuam, thiab raws li nws muab ruaj ruaj cov roj tiv thaiv kom txo cov oxidation ntawm chav weld pas dej. Kom tuab daim hlau, submerged arc vuam yuav siv tau ua ke, tab sis lub purity ntawm flux yuav tsum yog kom ntseeg tau.

Kev tswj vuam vuam tsis muaj kev tiv thaiv kom tsis txhob overheating

Siv cov vuam kom qis dua thiab nrawm dua ntawm cov hlau ua kom sov thiab weld (overheating ntawm cov nplej ntawm cov kav hlau, uas ua rau muaj kev sib xyaw ua ke, uas degrades toughness thiab corrosion tsis kam).

Tswj cov kub uas cuam tshuam (feem ntau tsis tshaj 150 degree) kom tsis txhob muaj nag dhau ntawm niobium carbides vim muaj cov cua sov ntxiv.

Tswj kom luv luv - arc vuam kom txo cov nplawm ntawm weld pas dej los ntawm arc thiab cov hlav ntawm cov khoom siv.

Txhim Kho Cov Kev Tiv Thaiv Roj

Ntshiab Agon (AR) lossis Argon {{{{helium mowed roj (kom nce arc kub) yog feem ntau siv los ua cov pa thaiv cov roj. Tus nqi txaus yuav tsum muaj qhov nruab nrab (feem ntau 8 {{}}}}}}}}}}}}}}-minones, tiv thaiv oxidation.

Rau cov hauv paus pib, cov kev tiv thaiv sab nraub qaum (piv txwv li, backside argon purging) yog yuav tsum zam cov hauv paus oxidation, uas tuaj yeem ua rau emgrittlement lossis corrosion.

Tiv thaiv cov kab nrib hoom kub
Austenitic Stainless Hlau Welds yog nquag rau kub tawg vim tsawg utectics (piv txwv li, leej faj thiab phosphorus tebchaw). Mloog yuav tsum tau them rau:

Tswj weld tsim; Zam kev ntxhov siab ntau dhau los ntawm kev sib cav sib ceg me me lossis qhov khoob khoob khoob khoob khoob khoob.

Txo cov sulfur thiab phosphorus cov ntsiab lus hauv cov hlau thiab vuam cov khoom siv.

Zam kev txias txias thaum vuam; Siv kev ntsuas kom qeeb yog tias tsim nyog.

Preheating thiab tshaj tawm - Weld Kev Kho Cua Sov

Preheating feem ntau tsis tas yuav tsum tau (tshwj tsis yog vuam tuab heev, nyob rau hauv cov ntaub ntawv muaj kev kub ntxhov, nyob rau hauv cov xwm txheej uas muaj kev tiv thaiv kom tiv thaiv kom tsis txhob txias).

Tshaj tawm - Weld Kev Kho Mob Kub yog feem ntau, tab sis rau cov khoom siv kub (piv txwv li los txhim kho kev kub taub hau (}

Post - Weld Kev Kho Mob thiab Soj ntsuam

Sai sai tshem tawm Weld Slag thiab sab tom qab vuam. Ua cov kev kho mob thiab kev daws teeb meem (siv cov kev daws tshwj xeeb

Kev kuaj xyuas cov duab; Yog tias tsim nyog, siv tsis- txoj kev kuaj (ndt) xws li ntsuas hluav taws xob (RT) thiab ultrasonic kuaj (U) kom ntseeg tau tias tsis muaj kev cuam tshuam sab hauv.

Ua raws li cov khoom ua haujlwm saum toj no tuaj yeem ua kom zoo rau cov tshuab hluav taws xob, sib ntsib nws cov ntawv thov thiab cov khoom siv hluav taws xob, thiab cov roj ntsha siab, thiab lub zog loj heev kev lag luam).

Cim npe nrov: ER347 SS Hlau, Tuam Tshoj, Chaw Tsim Khoom, Chaw Tsim Tshuaj, Hoobkas, Tuam txhab, yuav, tus nqi qis, zoo, khoom lag luam zoo, khoom lag luam