Cov khoom thiab kev siv ntawm Argon-Hydrogen Mixtures hauv Vuam
Argon-hydrogen sib tovtau txais txiaj ntsig tseem ceeb hauv kev lag luam vuam vim lawv cov khoom tshwj xeeb thiab ntau yam kev siv. Cov kab lus no tsom mus tshawb txog ntau yam khoom ntawm argon-hydrogen sib tov thiab sib tham txog lawv cov kev siv hauv cov txheej txheem vuam. Los ntawm kev nkag siab txog cov khoom thiab cov ntawv thov no, cov welders tuaj yeem txhim kho lawv cov txheej txheem vuam thiab ua tiav cov vuam zoo.
1. Khoom ntawm Argon-Hydrogen Mixtures:
1.1 Ua kom muaj cua sov: cov khoom sib xyaw argon-hydrogen muaj cov thermal conductivity ntau dua piv rau cov ntshiab argon. Qhov no ua rau muaj kev kub ntxhov ntxiv thaum lub sij hawm vuam txheej txheem, ua rau kev nkag mus tau zoo dua thiab nrawm dua vuam ceev.
1.2 Enhanced Arc Stability: Qhov sib ntxiv ntawm hydrogen rau argon txhim kho arc stability los ntawm kev txo cov hluav taws xob poob thoob plaws arc. Qhov no tso cai rau kev tswj kom zoo dua ntawm cov txheej txheem vuam, txo qis spatter thiab ua kom muaj kev ruaj khov arc thoob plaws hauv qhov vuam.
1.3 Txhim Kho Kev Tiv Thaiv Gas: Argon-hydrogen sib tov muab cov khoom tiv thaiv zoo heev, tiv thaiv kev sib kis ntawm huab cua ntawm lub pas dej. Cov ntsiab lus hydrogen nyob rau hauv qhov sib tov ua raws li cov pa roj reactive, tshem tawm oxides thiab lwm yam impurities los ntawm qhov chaw vuam.
1.4 Txo Cov Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob (HAZ): Kev siv cov argon-hydrogen sib tov ua rau muaj qhov nqaim thiab tsis tshua muaj kev cuam tshuam HAZ piv rau lwm cov khoom siv tiv thaiv. Qhov no yog qhov tshwj xeeb tshaj yog rau cov khoom siv vuam nrog cov thermal conductivity, vim nws txo qis distortion thiab txhim kho tag nrho cov vuam zoo.
2. Kev siv ntawm Argon-Hydrogen Mixtures hauv Vuam:
2.1 Carbon Steel Vuam: Argon-hydrogen sib tov yog feem ntau siv rau cov pa roj carbon steel vuam vim lawv muaj peev xwm muab qhov tob tob thiab vuam ceev. Kev txhim kho arc ruaj khov thiab txhim kho kev tiv thaiv zoo ua rau cov khoom sib xyaw no zoo tagnrho rau kev ua tiav cov welds muaj zog thiab ruaj khov hauv cov ntawv siv carbon steel.
2.2 Stainless Hlau Vuam: Argon-hydrogen sib tov kuj haum rau stainless hlau vuam. Cov ntsiab lus hydrogen nyob rau hauv qhov sib tov pab tshem tawm cov oxides saum npoo, ua rau huv welds nrog txo porosity. Tsis tas li ntawd, cov khoom siv hluav taws xob ntau ntxiv tso cai rau kev sib txuas nrawm dua, txhim kho cov khoom tsim hauv stainless hlau fabrication.
2.3 Aluminium Vuam: Txawm hais tias argon-helium sib tov feem ntau yog siv rau txhuas vuam, argon-hydrogen sib tov kuj tuaj yeem ua haujlwm. Cov khoom sib tov no muaj kev ruaj ntseg zoo dua qub thiab txhim kho kev ua kom huv, ua rau cov welds zoo nrog txo qhov tsis xws luag.
2.4 Copper Vuam: Argon-hydrogen sib tov tuaj yeem siv rau kev siv tooj liab, muab kev ruaj ntseg zoo arc thiab txhim kho cov cua sov. Cov ntsiab lus hydrogen nyob rau hauv qhov sib tov pab tshem tawm cov tooj liab oxides, kom huv si thiab muaj zog welds.
Argon-hydrogen sib tov muaj cov khoom tshwj xeeb uas ua rau lawv tsim nyog rau ntau yam kev siv vuam. Lawv cov khoom siv hluav taws xob ntau ntxiv, txhim kho arc ruaj khov, txhim kho cov khoom tiv thaiv, thiab txo HAZ ua rau lawv xaiv zoo rau cov hlau, stainless hlau, txhuas, thiab tooj liab vuam. Los ntawm kev siv argon-hydrogen sib tov, cov welders tuaj yeem ua tiav cov vuam zoo nrog cov khoom tsim tau zoo dua qub thiab txo qhov tsis xws luag. Nws yog ib qho tseem ceeb rau cov welders kom nkag siab txog cov khoom thiab cov kev siv ntawm argon-hydrogen sib tov los txhim kho lawv cov txheej txheem vuam thiab ua kom cov txiaj ntsig tau zoo hauv lawv txoj haujlwm vuam.