Treatment of welding joint problem: burning protective mirror

表现：

  短时间内保护镜损坏出现烧点，保护镜出光面有点状损坏点，呈现黑色或白色中黑点

Performance:

In a short period of time, the protective mirror is damaged and burned, and the light-emitting surface of the protective mirror is a bit damaged, showing black or white black spots.

原因分析：

  由于工艺/手法/设置等影响，造成反渣导致损坏，极个别为激光器出光异常

Cause analysis:

Due to the influence of process/technique/setting, slag reversal leads to damage, and very few cases are abnormal laser light emission.

解决方案

  ①适当增大气压，通常情况下流量不低于15，压力不低于4，建议使用氧气的压力表不低于2公斤

  ②焊接时尽量焊接枪与板材呈现45°焊接，不要垂直

  ③设置参数尽量给予缓升缓降，如开/关气延时200-500ms，开/关光功率20%，开/关光渐进时间200-300ms，如图不可设0

solution

① Increase the air pressure appropriately. Under normal circumstances, the flow rate is not less than 15 and the pressure is not less than 4. It is recommended to use an oxygen pressure gauge of not less than 2 kg.

② when welding, try to weld the gun with the plate at 45, not vertically.

③ Set the parameters as slowly as possible, such as the on/off gas delay of 200-500ms, the on/off light power of 20%, and the on/off light gradual time of 200-300ms, as shown in the figure, you cannot set 0.

  ④在焊接铝材和镀锌板时，这种材质会比其他材质更容易损坏镜片，应使用最小功率焊接。

  ⑤保护镜的质量也决定了其使用的耐用度，建议使用原厂镜片

  ⑥高功率下，相比于低功率，镜片的损耗会提高，这个是不可控的范围

  ⑦当以上都无法处理时，可更换F200聚焦镜+加长宽刻度管来减少飞溅（需额外采购）

④ When welding aluminum and galvanized sheet, this material will damage the lens more easily than other materials, and minimum power welding should be used.

⑤ The quality of protective glasses also determines their durability. It is recommended to use original lenses.

⑥ Under high power, the lens loss will increase compared with low power, which is uncontrollable.

⑦ When the above cannot be handled, the F200 focusing lens can be replaced and the length and width calibration tube can be added to reduce splashing (additional purchase is required).