电弧烧伤。由于电极(含接地极)与管子表面之间起弧而产生的局部表面熔化点。
Arc Burns. Localized points of surface melting caused by arcing between electrodes or ground and pipe surface.
因此，本文基于新研制的非熔化盘式电极自动清根技术，对焊缝清根规律进行了研究。
Therefore, the law of welding seam back chipping was studied based on the newly developed automatic back chipping machine with a disk-type non-consumable electrode.
通过测量双电极焊条的动态温升等试验方法研究了双电极焊条单弧焊中双电极焊条的加热和熔化。
With measuring dynamic temperature change of twin electrode, the heating and melting of twin electrode single arc welding was investigated.
两焊芯熔化速度能否保持一致是双电极焊条单弧焊过程能否稳定进行的关键。
Two cores melting speed can keep consistence is very important for twin electrode single arc welding to be stabilized.
讨论了电极熔化速度与凝固质量之间的关系，及如何计算合理的熔化速度。
Relation between melting rate and solidification quality and how to obtained the reasonable melting rate is discussed.
研究表明，双电极焊条两焊芯熔化的一致性受焊条类型、接电流等因素的影响。
The melting consistency of two cores is influenced by electrode type, welding current etc.
针对非熔化盘式电极原理与结构特点，借鉴传统体积热源模型，推导了相应的热流分布模式。
According to the principle and structure of the disk-type electrode, a new corresponding heat source model was derived using the traditional volume heat source model for reference.
主要介绍了目前等离子—熔化极气体保护焊在采用不同的电极连接形式下，不同的电弧形态和熔滴过渡方式，以及电弧成分组成和温度分布；
This paper mainly introduces the different arc shapes, metal transfer modes, compositions of arc and temperature distribution in plasma-GMAW with different electrode connection forms at present;
熔滴的体积和形成时间都直接影响到电极的熔化率和材料的净化程度等重要指标。
The volume and forming time of the droplet are related with melting rate and material purification rate directly.
然后主要从双丝或多丝电弧焊工艺和双焊炬组合焊接工艺两个大的方面着重介绍了纵列式熔化极气体保护焊、等离子弧-熔化极气体保护焊和双电极熔化极气体保护焊等高速弧焊工艺。
Then, high-speed arc welding processes are introduced, such as tandem GMAW, PAW-GMAW and DE-GMAW, based on two categories:twin or more wires arc welding process and two-torch combined welding process.
然后主要从双丝或多丝电弧焊工艺和双焊炬组合焊接工艺两个大的方面着重介绍了纵列式熔化极气体保护焊、等离子弧-熔化极气体保护焊和双电极熔化极气体保护焊等高速弧焊工艺。
Then, high-speed arc welding processes are introduced, such as tandem GMAW, PAW-GMAW and DE-GMAW, based on two categories:twin or more wires arc welding process and two-torch combined welding process.
应用推荐