Titanium alloys muaj tsawg dua ntom ntom, zoo corrosion, tsis muaj kuab cua, tsis muaj tshuaj lom thiab sib nqus, thiab tuaj yeem sib nqus; Lawv tau siv dav hauv aviation, aerospace, tshuaj lom neeg, roj av, hluav taws xob, kev kho mob, kev tsim kho, cov khoom kis las thiab lwm yam haujlwm.
Cov txheej txheem vuam ntau rau titanium thiab titanium alloys suav nrog: argon arc vuam, submerged arc vuam, nqus hluav taws xob nqaj vuam, thiab lwm yam.
Kev npaj ua ntej vuam
Qhov saum npoo zoo ntawm cov vuam thiab titanium vuam hlau muaj qhov cuam tshuam zoo rau cov khoom siv ntawm cov khoom sib txuas, yog li nws yuav tsum tau ntxuav kom nruj.
1) Kev tu txhua yam: Rau cov welds uas tsis tas yuav tsum tau vuam zoo los yog nyuaj rau pickle, nplua sandpaper los yog stainless hlau hlau txhuam yuav siv tau los so lawv, tab sis nws yog qhov zoo tshaj plaws los siv carbide daj los txhuam cov titanium phaj kom tshem tawm cov oxide zaj duab xis.
2) Tshuaj ntxuav: Ua ntej welding, daim ntawv xeem thiab vuam hlau tuaj yeem khaws cia. Cov kua dej tuaj yeem yog HF (5%) + HNO3 (35%) dej. Yaug nrog dej huv tom qab pickling, thiab weld tam sim ntawd tom qab ziab. Los yog siv acetone, ethanol, carbon tetrachloride, methanol, thiab lwm yam los so cov titanium phaj zawj thiab ob sab (hauv 50 hli txhua), qhov saum npoo ntawm cov vuam hlau, thiab qhov chaw uas cov khoom sib txuas nrog lub phaj titanium.
3) Kev xaiv cov khoom siv vuam: Rau argon arc vuam ntawm titanium thiab titanium alloy tungsten daim hlau, DC argon arc vuam fais fab qhov chaw nrog cov yam ntxwv sab nraud thiab qhov pib arc siab yuav tsum raug xaiv, thiab lub sijhawm xa khoom xa tuaj yuav tsum tsis pub tsawg dua. 15 vib nas this kom tsis txhob oxidation thiab paug ntawm cov vuam.
4) Kev xaiv cov khoom siv vuam: Lub purity ntawm argon roj yuav tsum tsis pub tsawg tshaj li 99.99%, lub dew point yuav tsum nyob rau hauv qab -40 ℃, thiab tag nrho cov loj feem ntawm impurities yuav tsum yog 0.001%. Thaum lub siab nyob rau hauv lub tog raj kheej argon poob rau 0.981MPa, nws yuav tsum tau nres kom tsis txhob cuam tshuam qhov zoo ntawm cov welded sib koom.
Xinfa vuam cov cuab yeej muaj cov yam ntxwv zoo thiab tus nqi qis. Yog xav paub ntxiv, thov mus saib:Vuam & txiav Manufacturers - Tuam Tshoj Vuam & Txiav Hoobkas & lwm tus neeg (xinfatools.com)
5) Kev tiv thaiv roj thiab vuam kub: Cov titanium yeeb nkab sib txuas yog qis thaum vuam. Txhawm rau tiv thaiv kev sib koom ua ke los ntawm kev sib kis los ntawm cov pa phem thiab cov ntsiab lus ntawm qhov kub thiab txias, qhov chaw vuam thiab vuam yuav tsum raug rau qhov tsim nyog vuam kev tiv thaiv thiab tswj qhov kub thiab txias, thiab qhov kub yuav tsum qis dua 250 ℃.
Cov lus qhia ua haujlwm
1. Thaum ua tiav phau ntawv argon arc vuam, qhov tsawg kawg nkaus lub kaum sab xis (10 ~ 15 °) yuav tsum tau khaws cia ntawm cov vuam hlau thiab vuam. Lub vuam hlau yuav tsum tau muab tso rau hauv lub pas dej molten tsis tu ncua thiab sib npaug ntawm lub hauv ntej kawg ntawm lub pas dej molten, thiab qhov kawg ntawm vuam hlau yuav tsum tsis txhob txav tawm ntawm qhov chaw tiv thaiv argon.
2. Thaum vuam, vuam phom yeej tsis viav vias kab rov tav. Thaum nws yuav tsum tau viav vias, qhov zaus yuav tsum qis thiab lub viav vias amplitude yuav tsum tsis txhob loj dhau los tiv thaiv kev cuam tshuam kev tiv thaiv ntawm argon roj.
3. Thaum rhuav tshem cov arc thiab ua tiav cov vuam, txuas ntxiv hla kev tiv thaiv argon kom txog thaum lub vuam thiab cov hlau nyob rau hauv qhov chaw uas muaj kev kub ntxhov txias kom qis dua 350 ℃ ua ntej tshem cov phom vuam.
Nto xim ntawm weld thiab tshav kub cuam tshuam cheeb tsam
1. Weld cheeb tsam
Nyiaj dawb, lub teeb daj (tso cai rau qib thawj, thib ob thiab thib peb); daj daj (tso cai rau qib thib ob thiab thib peb welds); golden ntshav (tso cai rau qib peb welds); xiav tsaus (tsis pub rau thawj, thib ob thiab thib peb qib welds).
2. Thaj chaw muaj kev kub ntxhov
Nyiaj dawb, lub teeb daj (tso cai rau qib thawj, thib ob thiab thib peb); tsaus daj, daj liab doog (tso cai rau qib thib ob thiab thib peb welds); xiav tsaus (tso cai rau qib peb welds).
Post lub sij hawm: Aug-20-2024
