High Carbon Steel Vuam yog qhov yooj yim rau kev tawg. Cov cuab yeej twg tuaj yeem daws qhov teeb meem no?

Hauv kev lag luam ntawm kev tsim khoom, kev tsim pwm, thiab kev siv tshuab engineering, cov pa roj carbon ntau (nrog cov ntsiab lus carbon ntawm 0.6% -1.7%) feem ntau yog siv los ua cov khoom tseem ceeb xws li cov cuab yeej txiav, lub zog, thiab cov ncej vim nws lub zog siab thiab hardness. Txawm li cas los xij, welding high-carbon steel yeej ib txwm yog ib qho kev sib tw hauv kev lag luam, vim nws tsis tshua muaj kev tawg tom qab vuam, uas tsis tsuas yog cuam tshuam rau lub neej kev pab cuam ntawm lub workpiece tab sis kuj tseem yuav ua rau muaj kev nyab xeeb. This article will analyze the core reasons for cracking in high-carbon steel welding, recommend suitable welding equipment, and provide equipment selection suggestions to help practitioners break through the technical bottlenecks in high-carbon steel welding.

I. Xaiv cov cuab yeej zoo yog qhov tseem ceeb, thiab peb hom vuam tshuab yog tsim nyog rau High-Carbon Steel Vuam

1. Pulsed TIG Vuam Tshuab: Haum rau Precision Vuam ntawm nyias-walled High-Carbon Steel
• Lub tshuab TIG welding tshuab ua tiav 'paj tswj ntawm cov khoom siv hluav taws xob' los ntawm cov khoom tso tawm tam sim no. Lub ncov tam sim no ntawm cov mem tes yog siv los yaj cov hlau los ua lub pas dej molten, thaum lub hauv paus tam sim no tswj kev ruaj ntseg ntawm lub arc thiab txo cov cua sov, txo qhov loj ntawm qhov kub thiab txias thiab qhov tshwm sim ntawm martensite tsim. Nws qhov zoo yog nyob rau hauv qhov zoo nkauj weld seam tsim thiab tsis muaj spatter. Nws yog tsim rau nyias-walled high-carbon steel qhov chaw nrog ib tug tuab ntawm tsawg tshaj li 3 hli (xws li precision pwm inserts thiab me me tej cuab yeej). Ntxiv mus, kev tiv thaiv roj argon tuaj yeem txo cov hydrogen ingress thiab txo qhov kev pheej hmoo ntawm hydrogen-induced cracking.
• Txawm li cas los xij, qhov kev ua tau zoo ntawm kev sib tw TIG vuam tshuab yog qhov tsawg. Lawv xav tau phau ntawv xov tooj pub mis thiab muaj cov kev xav tau siab rau cov neeg ua haujlwm, ua rau lawv tsis tsim nyog rau cov phaj tuab loj.
2. Low-Hydrogen Manual Arc Vuam Tshuab (nrog Preheating Function): Tsim nyog rau cov pa vuam ntawm nruab nrab-Thickness daim hlau
• Lub tshuab low-hydrogen phau ntawv arc vuam tshuab, siv ua ke nrog qis-hydrogen electrodes, tuaj yeem cais cov huab cua nrog cov txheej txheem electrode, txo cov kev koom ua ke ntawm hydrogen thiab yog li txo qhov kev pheej hmoo ntawm hydrogen-induced cracking ntawm qhov chaw. Qee cov qauv high-end tau nruab nrog lub preheating muaj nuj nqi uas tuaj yeem ua kom sov lub workpiece mus rau 150-300 ° C, ua kom qis qis qis, txo qis qhov tsim ntawm martensite, thiab tso qee qhov kev ntxhov siab thermal. Hom vuam tshuab no muaj qhov pib ua haujlwm qis thiab tsim nyog rau nruab nrab-thickness high-carbon steel qhov chaw nrog lub thickness ntawm 5-20 hli (xws li lub zog thiab ncej). Tsis tas li ntawd, cov khoom siv tus nqi yog nruab nrab, muab tus nqi zoo rau cov nyiaj.
3. Gas Hlau Arc Vuam Tshuab (MIG / MAG, nrog Dual-Pulse Function): Haum rau Loj-Batch Thick Phaj Vuam
• MIG / MAG welding tshuab nrog dual-pulse muaj nuj nqi tswj cov xaim xaim xaim xaim xaim xaim hluav taws xob los ntawm cov khoom siv hluav taws xob siab, ua tiav 'tso cua sov tawm tswv yim thiab kev tso nyiaj siab ua haujlwm zoo.' Nws tuaj yeem txo qhov dav ntawm thaj chaw tshav kub kom tsis txhob muaj ntau dhau quenched qauv thiab nce vuam ceev kom tau raws li qhov xav tau ntawm cov khoom loj. Thaum lub sij hawm vuam, siv cov roj argon-nplua nuj sib xyaw, uas muaj kev tiv thaiv zoo dua li cov ntshiab argon thiab tuaj yeem txo qis hydrogen ingress ntxiv. Qee cov qauv kuj muaj 'kev nyuaj siab' hom uas pab tso cov vuam kev nyuaj siab los ntawm kev kho cov waveform tam sim no.
• Lub tshuab vuam hom no yog tsim rau tuab cov pa roj carbon steel qhov chaw nrog lub thickness ntawm ntau tshaj 8 hli (xws li engineering machinery load-bearing structures and large gear box housings). Txawm li cas los xij, cov cuab yeej siv yog tus nqi siab, thiab nws yuav tsum tau siv ua ke nrog tshwj xeeb qis-hydrogen vuam hlau.

II. Kev xaiv cov khoom siv yuav tsum tau ua raws li qhov xwm txheej, thiab cov txheej txheem yuav tsum tau muab tso ua ke kom tiv thaiv kev tawg.

• Rau me me-batch precision nyias-walled qhov chaw, lub tshuab pulsed TIG vuam yog thawj qhov kev xaiv. Nws yuav tsum tau siv nrog kev tiv thaiv roj argon thiab tom qab-weld low-temperature tempering kom tshem tawm kev ntxhov siab ntxiv.
• Rau nruab nrab thiab me me batch nruab nrab-thickness qhov chaw, low-hydrogen phau ntawv arc vuam tshuab muab tus nqi zoo dua rau cov nyiaj. Nws yuav tsum tau ua ke nrog cov txheej txheem xws li electrode ziab, workpiece preheating (rau cov phaj tuab), thiab tom qab vuam qeeb txias (npog nrog asbestos daim ntaub).
• Rau qhov loj-batch tuab phaj, dual-pulse MIG / MAG vuam tshuab yog tsim nyog. Nws tuaj yeem siv nrog tsis siv neeg xaim pub mis thiab kev kho tom qab vuam dehydrogenation los txhim kho kev ua haujlwm thiab zoo.

Yog tias koj xav tau lub tshuab vuam, thov hu rau Ms. Zhao

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