Vuam tooj liab rods siv lub taub qab vuam tshuab yuav tsum tau tshwj xeeb kev txiav txim siab los xyuas kom meej welds ua tau zoo thiab tswj cov kev ncaj ncees ntawm cov khoom tooj liab. Kev nkag siab txog cov ntsiab lus tseem ceeb no yog qhov tseem ceeb rau cov neeg siv khoom thiab cov kws tshaj lij hauv kev lag luam vuam kom ua tiav cov welds meej thiab txhim khu kev qha thaum ua haujlwm nrog tooj liab rods. Kab lus no tshawb txog cov ntsiab lus tseem ceeb uas yuav tsum xav txog thaum vuam tooj liab rods siv lub taub qab vuam tshuab, hais txog lawv qhov tseem ceeb hauv kev ua tiav cov khoom siv tooj liab zoo.
- Kev huv huv thiab kev npaj nto: Ua ntej vuam tooj liab pas nrig, kev tu kom huv ntawm cov pas nrig yog qhov tseem ceeb. Tooj liab yog nquag oxidation, uas tuaj yeem cuam tshuam rau qhov zoo ntawm vuam. Xyuas kom meej tias cov pas nrig tooj liab tsis muaj av, roj, lossis cov kab mob uas tuaj yeem cuam tshuam kev sib xyaw kom zoo thaum lub sijhawm vuam.
- Kev sib haum xeeb thiab kev sib raug zoo: Kev sib haum xeeb thiab kev sib haum xeeb ntawm cov pas nrig tooj liab yog qhov tseem ceeb rau kev ua tiav cov welds. Kev sib raug zoo rods xyuas kom meej tias cov vuam electrode ua kom muaj kev sib raug zoo thoob plaws hauv kev sib koom tes, ua rau muaj zog thiab txhim khu kev qha fusion.
- Thaum tshav kub kub tswj: tooj liab muaj siab thermal conductivity, ua rau nws rhiab heev rau cov cua kub ntau dhau thaum vuam. Kev tswj cov vuam tsis zoo, xws li vuam tam sim no thiab qhov hluav taws xob, yog qhov tseem ceeb los tiv thaiv overheating thiab muaj peev xwm puas tsuaj rau cov pas nrig tooj liab.
- Tsim nyog Vuam Electrode: Xaiv cov khoom siv vuam electrode uas tsim nyog yog qhov tseem ceeb thaum vuam tooj liab rods. Cov khoom siv electrode yuav tsum sib haum nrog tooj liab kom ntseeg tau tias fusion zoo thiab txo qhov kev pheej hmoo ntawm kev sib kis.
- Preheating: Preheating tooj liab rods ua ntej welding yuav pab tau, tshwj xeeb tshaj yog rau thicker rods los yog nyob rau hauv txias ib puag ncig. Preheating pab txo thermal stresses, txhim kho weldability, thiab txhim khu tag nrho cov weld zoo.
- Vuam ceev: Ua kom ruaj khov thiab tswj vuam ceev yog qhov tseem ceeb thaum ua haujlwm nrog cov pas nrig tooj liab. Raws li electrode tshem tawm ceev kom zoo li qub weld hlaws zoo li thiab kom raug cua sov faib.
- Kev kho tom qab vuam: Tom qab vuam, nws yog ib qho tseem ceeb uas yuav tsum tau cia cov welded sib koom ua kom txias maj mam kom tiv thaiv kom txias sai thiab muaj peev xwm tawg. Kev kho cua sov tom qab vuam tej zaum yuav raug txiav txim siab los ua kom zoo dua cov tooj liab vuam cov khoom siv yog tias xav tau.
Hauv kev xaus, welding tooj liab rods siv lub taub qab vuam tshuab yuav tsum tau ceev faj rau ntau yam tseem ceeb. Kev huv huv thiab kev npaj saum npoo av, kev sib haum xeeb thiab kev sib haum xeeb, kev tswj cov cua sov, thiab cov khoom siv vuam electrode tsim nyog yog cov kev xav tseem ceeb los xyuas kom muaj kev vam meej welds thiab khaws kev ncaj ncees ntawm cov khoom siv tooj liab. Preheating thiab tswj kom ruaj khov welding ceev ntxiv txhim khu cov txheej txheem vuam, ua rau cov khoom siv tooj liab zoo. Los ntawm kev nkag siab thiab ua raws li cov ntsiab lus tseem ceeb no, cov welds thiab cov kws tshaj lij tuaj yeem ua tiav cov welds meej thiab txhim khu kev qha thaum ua haujlwm nrog tooj liab rods. Hais txog qhov tseem ceeb ntawm txhua qhov kev txiav txim siab txhawb kev nce qib ntawm vuam tshuab, txhawb kev ua tau zoo hauv kev siv tooj liab vuam thoob plaws ntau yam kev lag luam.
Post lub sij hawm: Lub Xya hli ntuj-28-2023
