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What kind of laser marking machine can marking black color on stainess steel?

1,What kind of laser marking machine can marking black color on stainess steel? 2,Why can mark black color on stainess steel 3,How to mark black color on stainess steel
1,What kind of laser marking machine can marking black color on stainess steel?
2,Why can mark black color on stainess steel.
3,How to mark black color on stainess steel.
 
The machine can be engraved black pattern on stainless steel is YAG laser marking machine and fiber laser marking machine.This two kinds of laser marking machines common thing is:both laser pulsed wavelength are close or equal,the center wavelength of the yag laser marking machine is 1064, optical fiber laser marking machine between 1060-1090.Another common point is, two kinds of laser marking machine, must be able to emit a pulsed laser.The efficiency of fiber laser marking at least five times better than yag laser marking machine.
 
The machine can be able to mark black color on stainess steel following by two factors.First through Q-laser, with a very high volume, such as yag laser reaches 10K or more, while the fiber laser can reach 50K. When such a high-energy laser pulses slowly moving in the stainless steel surface, it is possible to make stainless steel surface chemical reactions.Second, in order to increase the hardness of stainless steel in general have added a carbon element in the manufacturing process.Stainess steel include more carbon will have more black effect,such as 304 and carbon steel,marking effect is very good.
laser machine marking black color

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