Standard qualification procedure for manual welding technique 手工焊接技術(shù)的標(biāo)準(zhǔn)合格鑒定程序
Weld studs for manual welding 手工焊用焊接螺柱
The efficacy is raised three times owing to continuous wire feeding in comparison with manual welding 由于可連續(xù)送絲,與手弧焊相比、效率提高3倍。
For straight seams , we use submerged arc welding or carbon dioxide welding ; for some corners and small areas , we still use manual welding 對于長直板縫,我們用埋弧焊或二氧化碳?xì)怏w保護(hù)焊;拐角處和小地方,還用手工焊。
At present , the means for repairing hydraulic turbine blades in our country are still manual weld and manual polish . the working condition is bad and labour intensity great for workers and overhaul efficiency low and inferior 目前,國內(nèi)水輪機(jī)轉(zhuǎn)輪葉片修復(fù)仍采用手工補(bǔ)焊、人工打磨等檢修手段,工人勞動環(huán)境惡劣,勞動強(qiáng)度大,且檢修效率低,質(zhì)量差。