We can perform the pipe by following operations: cutting and mechanical chamfering, manual and automatic welding.
咱们可以对管子进行下面所开列预制加工：割切以及机械加工坡口，手工以及自动烧焊等。
The controlling system has many work patterns, such as manual, semiautomatic, and automatic, and can compensate for the effect of voltage fluctuation to welding current.
控制系统具有手动、半自动、全自动等工作方式，可自动补偿网压波动对焊接电流的影响。
The features of manual downhill welding, semiautomatic welding, automatic welding and other welding technologies like butt flash welding and laser beam welding (LEW) and so on are analyzed.
分析了手工下向焊、半自动焊、自动焊及特种焊等焊接方法的特点，在选择焊接方法时应考虑管道直径、壁厚、管道长度、设计条件、管子级别等因素。
This article introduces the construction, working theory and typical technology of automatic welding equipment for equal diameter welding tee to solve the low efficiency by manual welding.
简要介绍了等径焊接三通自动焊的设备结构、工作原理以及典型工艺。
Giving emphasis to the welding materials and welding processes of fully automatic welding and manual welding.
并重点介绍了采用全自动焊和手工焊的焊接材料及焊接工艺。
This paper depicts the chemical composition, mechanical performance of X80 line pipes, giving emphasis to the welding materials and welding processes of fully automatic welding and manual welding.
文章叙述了X80管线钢的化学成分、力学性能，并重点介绍了采用全自动焊和手工焊的焊接材料及焊接工艺。
The article discusses the automatic and manual feeding concept of the welding machine through analyzing the circuit of the wire feeding system of the CO2 arc welding machine.
通过对二氧化碳焊机送丝系统的电路分析，论述了焊机的自动送丝和手动送丝原理。
The article discusses the automatic and manual feeding concept of the welding machine through analyzing the circuit of the wire feeding system of the CO2 arc welding machine.
通过对二氧化碳焊机送丝系统的电路分析，论述了焊机的自动送丝和手动送丝原理。
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