titanium raj puas tuaj yeem welded? Yuav ua li cas weld
Titanium raj feem ntau muab faib ua seamless titanium raj thiab welded titanium raj. Nyob rau hauv cov nqe lus ntawm zus tau tej cov seamless titanium raj, nyob rau hauv xyoo tas los no, vim kev txhim kho ntawm lub dov zeb lub cev thiab automation theem, cov specifications ntawm seamless titanium raj tau ntxiv nthuav, thiab qhov tseeb qhov tseeb thiab cov khoom zoo yuav tsum tau txhim kho ntxiv, yog li tsim cov khoom tshwj xeeb ntau dua.
Nyob rau hauv cov nqe lus ntawm titanium welded kav, nrog rau kev tsim ntawm titanium sawb ntau lawm kab thiab kev txhim kho ntawm titanium sawb ntau lawm txheej txheem, qhov zoo ntawm cov khoom sawb tau zoo tsis tu ncua, ua rau cov nqi ntau lawm thiab cov nqi ruaj khov rau titanium welded kav. Yog li ntawd, cov kav dej titanium tuaj yeem welded, tab sis koj yuav tsum tau them sai sai rau cov khoom sib txawv, vuam nyuaj thiab cov txheej txheem vuam yuav tsum tau ua.
Yuav ua li cas weld titanium yeeb nkab
Argon arc arc vuam, submerged arc vuam thiab lub tshuab nqus tsev electron beam vuam, thiab lwm yam. Yog tias qhov tuab tsawg dua 3 hli, siv TIG vuam, thiab yog tias nws yog ntau tshaj 3 hli, siv MIG vuam. Cov pa purity tsis tsawg dua 99.99%, thiab cov huab cua thiab dej vapor ntsiab lus hauv cov roj argon yog tswj nruj heev. Kev kho deg xws li tshem tawm cov roj stain, tshem tawm oxide nplai, thiab oxide zaj duab xis tshem tawm yuav tsum tau ua ntej vuam.
Vim tias titanium thiab titanium alloys yog tshuaj lom neeg thiab yooj yim kis los ntawm oxygen, nitrogen, thiab hydrogen, welding txoj kev xws li arc vuam, oxyacetylene roj vuam, carbon dioxide vuam, thiab atomic hydrogen vuam tsis tuaj yeem xaiv.
Peb yuav tsum xyuam xim rau dab tsi thaum vuam titanium kav?
1. Porosity teeb meem thaum vuam
Thaum welding titanium thiab nws cov alloys, nws yog ib qho uas yuav tsum tau pom cov pores nyob ib ncig ntawm txoj kab fusion tom qab dhau los ntawm weld RT. Lub hom phiaj ntawm qhov pores yog hydrogen pores, vim hais tias cov solubility ntawm hydrogen hauv titanium txo qis thaum kub nce. Qhov kub siab nyob ib ncig ntawm fusion kab thaum lub sij hawm vuam yuav ua rau hydrogen desolve tawm. Yog hais tias hydrogen ib nrab siab nyob rau hauv cov huab cua nyob ze ntawm lub vuam cheeb tsam yog siab, lub hydrogen nyob rau hauv lub molten hlau yuav tsis yooj yim precipitate, yog li hydrogen pores yuav accumulate.
2. Cov teeb meem tawg thaum lub sij hawm vuam
Thaum welding titanium puag cov ntaub ntawv, vim hais tias cov khoom muaj tsawg leej faj thiab phosphorus impurities, kub tawg tsis tshua muaj tshwm sim. Txawm li cas los xij, thaum vuam titanium cov ntaub ntawv, cov kab nrib pleb txias yuav tshwm sim thiab tuaj yeem ua rau qeeb. Qhov tseem ceeb yog tias titanium muaj cov thermal conductivity tsis zoo thiab dissipates cua sov maj mam, uas tuaj yeem yooj yim ua rau cov weld muaj coarse nplej. Thaum cov ntsiab lus ntawm cov pa impurities siab, lub plasticity ntawm welded sib koom ua ke txo qis, thiab hydrogen embrittlement tshwm sim thaum ib tug loj npaum li cas ntawm hydrogen yaj nyob rau hauv lub weld.
3. Kev tiv thaiv roj thaum lub sij hawm vuam
Thaum lub sij hawm titanium vuam txheej txheem, lub purity ntawm cov roj yog siab heev, yog li peb siv high-purity argon. Qhov kev tiv thaiv uas xav tau los ntawm argon yog lub hauv paus hlau nyob rau hauv lub pas dej molten, tshav kub-cuam tshuam cheeb tsam thiab 10 mm cheeb tsam sab nraum lub fusion kab ntawm ob sab. Rau lub hom phiaj no, cov khoom siv tiv thaiv roj yuav tsum tau tsim, thiab cov khoom siv roj chamber yuav tsum tau siv los tiv thaiv sab hauv ntawm cov kav dej.
Titanium kav yuav tsum tau welded, tab sis lawv yuav tsum tau txawv raws li lawv cov khoom yam ntxwv thiab cov txheej txheem yuav tsum tau. Yog li ntawd, thaum welding titanium kav, koj yuav tsum tau xyuam xim rau kev xaiv ntawm cov khoom siv vuam tsim nyog, kev tiv thaiv roj, melting point thiab kev txawj ntse los xyuas kom meej qhov zoo thiab ruaj khov ntawm vuam.
