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济南激光切割加工为何要结合辅助气体?

发表时间:2017-06-17 09:35  责任编辑:济南瑞福不锈钢有限公司  点击:

  了解激光切割加工的人就会知道,在进行加工时,我们一般需要结合一些辅助气体的使用,这是为什么呢?

  People who know about laser cutting will know that when we do machining, we usually need to combine some auxiliary gases. Why is that?

  激光切割时会产生很大的热量,如此高的热量集中到一起,就会使切割处的材料燃烧,发生氧化反应,而且还容易使被加工件产生变形。所以,我们就需要加入 一些辅助气体,常用的一般有氧气、空气、氮气。那么怎样根据不同材料选择适合的气体呢?济南激光切割小编就给大家解答一下激光切割机在作业的时候为什么气体的辅助。我们在加工不锈钢时,应该选择氮气。氮气可以防止切口发生氧化反应,这样加工出来的切口就不会有发黑的现象了。在选择氮气的时候要选择高纯度的。如果 是加工碳钢板就要选择氧气了,氧气主要起到助燃的作用,可以加快工件的激光切割加工速度,当然氧气的纯度也要尽可能的高。在一些要求不是很精密的加工中,我们也可以选择氧气,因为氧气的使用成本低 ,也具有很大的辅助作用。

  Laser cutting will produce a lot of heat, so high concentration of heat together, it will make the cutting material burning, oxidation reaction, but also easy to deform the processed parts. Therefore, we need to add some auxiliary gas, commonly used in general oxygen, air, nitrogen. Well, how to choose the most suitable gas according to different materials? Ji'nan laser cutting Xiaobian to explain to you, when the laser cutting machine in operation, why the gas assisted?. We should choose nitrogen when processing stainless steel. Nitrogen can prevent the oxidation of the incision, so that the cut will not be black. When choosing nitrogen, choose a high purity. If it is carbon steel processing, we must choose oxygen, oxygen plays a major role in supporting combustion, it can speed up the laser cutting speed of the workpiece, of course, the purity of oxygen should be as high as possible. In some of the requirements are not very precise processing, we can also choose oxygen, because the use of oxygen is low cost, but also has a great supporting role.

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广东11选5   In addition to these functions, these auxiliary gases have many functions in common. These gases can blow away the molten slag produced during laser cutting and protect the lens from the slag sticking onto the lens and extending the service life of the lens. Air and nitrogen also have a cooling effect that cools the cutting head.

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