Vacuum plasma spraying is introduced (also called low voltage plasma spraying)
Vacuum plasma spraying is in controlled atmosphere, 4 ~ 40 kpa seal indoor spraying technology.
Gas after ionization, because work is swelling volume while spewing in low-pressure atmosphere, so the flow is supersonic speed, and is very suitable for the oxidation of highly sensitive materials.
SX80ZK plasma spraying, plasma spraying system abroad is combined with application of a high performance general spray gun, it focuses on a wide variety of strengths and features:
With advanced cooling technology: nozzle annular thin-walled channel design, to achieve cooling and the best heat transfer effect directly. New type electrode is formed all round for forced cooling.
Has the very high spray speed and production efficiency.
Based on the above characteristics, in the practical production, can achieve certain effects as follows:
The composition of vacuum plasma
The main room,
•Manipulator,
•mechanical arm parts, such as rotary table or index table
•The robots used in vacuum environment
•Vacuum gun,
The characteristics of the vacuum plasma spraying coating:
* with the parent metal bonding strength is very high
* low porosity
* optimize the structure of the
* control of residual stress
* lower coating oxidation rate
The application of plasma spraying technology
SX - 80 Zk type plasma spraying system because of its good performance, and therefore can spray coating are as follows:
1. Thermal barrier coatings (TBCs)
2. Can wear sealing coating
3. High temperature adhesive wear resistance coating
4. High temperature molten metal or melt erosion resistance coating
5. Wear-resisting antifriction coating
6. Fiber abrasion resistant coatings
7. Close water with dielectric coating
Low pressure plasma in the field of high and new technology application
1. The high temperature superconductor parts
2. The application in the microelectronics industry
3. The biomedical functional ceramic coating
A, artificial joints, vacuum plasma arc spraying on the surface of Ti, HA coating
Second, B,artificial hip joint with vacuum plasma spraying coating Ti - HA
Vacuum plasma spraying because of the high temperature, high enthalpy and high speed and low oxidation rate, spraying can be all kinds of thermal spraying powder, has been widely used in all walks of life, the use of equipment spare parts plays an important role in improving the performance of, and is indispensable to mechanical parts improve surface performance.
