Yuav kom tswj tau qhov zoo ntawm cov kav dej ncaj nraim kom muaj kev nyab xeeb ua haujlwm ntau lawm, nws tseem yog ib qho tseem ceeb ntawm kev ua kom muaj kev nyab xeeb ntawm tus neeg siv khoom. Daim ntawv thov teb yog vim qhov loj mesh engineering, lub tsev steel qauv engineering, lub zog thiab ultra-high-voltage kis thiab xa tawm engineering, mechanical engineering, hla hiav txwv choj, choj, ( chaw nres tsheb ciav hlau, tshav dav hlau, chaw ntau pob steel qauv engineering) , municipal pipeline network , municipal pipeline network , municipal pipeline network , municipal pipeline network , Basic piles , water gas pipelines and highway construction facilities .
1. Rase seb qhov specifications ntawm vuam hlau thiab welds thiab welds yog lawm raws li cov txheej txheem vuam txoj cai, thiab welding zoo xwm txheej yog tiv thaiv los ntawm tsis to taub vuam hlau thiab welds.
2. Saib xyuas qhov chaw vuam. Thaum qhov chaw vuam tsis zoo (qhov ntsuas kub tsawg dua 0} degree C thiab qhov txheeb ze av noo siab dua 90%), qhov vuam yuav tsum tau muab coj los siv.
3. Tshawb xyuas txoj kab nqes me me ua ntej vuam ua ntej, suav nrog seb qhov sib txawv, blunt sab, lub kaum sab xis thiab qhov ncauj yuam kev raws li cov txheej txheem yuav tsum tau ua.
4. Seb lub vuam tam sim no, vuam voltage, vuam ceev thiab lwm yam txheej txheem tsis siv nyob rau hauv cov txheej txheem ntawm faus arc tsis siv neeg welding sab hauv thiab sab nraud.
5. Saib xyuas cov neeg ua haujlwm vuam ua kom tag nrho siv qhov ntev ntawm lub arc ntawm cov yeeb nkab steel kawg kom ntxiv dag zog rau qhov ntev ntawm lub arc raj ntawm qhov kawg ntawm qhov faus arc kom ntxiv dag zog rau kev siv ntawm arc phaj thaum lub sij hawm vuam sab hauv thiab sab nraud, uas pab txhim kho qhov vuam zoo ntawm cov yeeb nkab kawg.
6. Txawm hais tias cov neeg ua haujlwm vuam ua ntej ntxuav cov seem seem thaum vuam, seb qhov txuas puas tau kho tag nrho, thiab seb puas muaj roj, xeb, seem, dej, xim thiab lwm yam av ntawm lub qhov txhab.
