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What are the new plasma sprays in recent years?

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Author : Pei Ze Technology
Update time : 2019-08-12 09:53:19

     In today's fast-moving society, innovation is an indispensable part of every industry, and plasma spray innovation is a big step forward. In recent years, plasma spraying technology has reached a big breakthrough, so what are the new types of plasma spraying?

First, vacuum plasma spraying
     (1) The jetting speed and temperature of vacuum plasma spraying are significantly higher than atmospheric plasma spraying. The lower the pressure, the higher the velocity and temperature of the plasma jet.
     (2) The powder residence time of the plasma jet in the high temperature zone is prolonged, the heating is more uniform, and the flight speed is accelerated.
     (3) The preheating temperature of the substrate surface can be greatly improved, and the substrate is sputtered and cleaned by a reverse transfer arc to remove oxides and dirt, and the bonding conditions of the coating and the substrate are improved.

 

近年新型的等离子喷涂有哪些?

 

     (4) The powder and the surface of the substrate are completely protected from oxidation, and various active metal coatings can be prepared.
     (5) Due to the above reasons, the bond strength of the coating is greatly improved, the porosity is greatly reduced, the residual stress of the coating is lowered, and the coating quality is remarkably improved.
     (6) Vacuum plasma spraying equipment is complicated and expensive, and it is difficult to promote its application.

Second, water stable plasma spraying
     (1) Using the bunching effect of rotating vortex water, the density of energy is greatly improved and the efficiency is higher.
     (2) Stable use, not easy to extinguish.
     The above is about the two new types of spraying technology in plasma spraying in recent years, I hope to help everyone.