电弧焊和气焊的区别

阅读 53 收藏 0 点赞 0 评论 0

弧焊

电弧焊是一种焊接工艺,其中使用在电极和母材之间产生的电弧来提供必要的热量,以熔化工件的预期表面以形成聚结。

气焊

气焊是一种焊接工艺,其中使用由气体燃料与氧气燃烧获得的火焰来提供所需的必要热量。这种热量用于金属化工件的表面,这些工件被固定在一起以形成接头。

电弧焊和气焊的区别

下表重点介绍了电弧焊和气焊之间的几个区别 -

弧焊气焊
In the arc welding process, an electric arc is created to produce the required heat for fusing the base metal for coalescence formation.在气焊过程中,气体燃料与氧气的燃烧被用来产生所需的热量。
Arc welding can only be used for the metals which are electrically conductive.气焊同样适用于导电金属和非导电金属。
Electric arc welding requires availability of electric power supply for its operation.在气焊的情况下不需要电源。
In case of arc welding, no cylinder containing fuel and oxygen is required.在气焊的情况下,使用两个气缸,一个用于气体燃料,例如乙炔、丙烯等。而另一个用于容纳氧气。
Arc welding process requires shielding of the arc and the weld bead which is provided either by flux coating of the electrode or some inert gas.在气焊过程中不提供保护。
As the arc temperature is very high, the temperature of the core is about more than 6000 °C. Therefore, arc welding can be used for joining of metals having high melting point.气体火焰的温度相对较低,约为 3500 °C。因此,气焊不能用于熔点很高的金属的焊接。
The electric arc has a narrow cross-sectional area. Therefore, it reduces the width of weld bead and heat affected zone.气体火焰的横截面积相对较宽。因此,它导致更宽的焊道和热影响区。
The high temperature and narrow electric arc increases the heat density, which results in quick fusion of metals.较低的温度和较宽的气体火焰导致较低的热密度。因此,气焊需要更多的焊接工艺,这使得它不经济。
Arc welding can be used for joining thicker components.气焊仅适用于薄板和钣金。
Arc welding has inherent arc cleaning, due to flow of avalanche of electrons.在气焊过程中,不进行电弧清洗。因此,基体金属需要在焊接前进行清洁。
Arc welding is not suitable for heating, cleaning, cutting, etc.除了金属的接合外,气焊还可用于加热、气割、钎焊、锡焊和清洗等。
评论列表


问题


面经


文章

微信
公众号

扫码关注公众号