Industry information

Home  > INFO CENTER  > Industry information  > 

Sintering process of Large PVD Vacuum Coating for Stainless Steel Sheet

Sintering process of Large PVD Vacuum Coating for Stainless Steel Sheet

2021-04-18

Sintering process of Large PVD Vacuum Coating for Stainless Steel Sheet: refers to the interconnection of the solid particles of the ceramic green body under the high temperature of the material, the crystal grains grow up, the voids (pores) and the grain boundaries gradually decrease, and the total volume shrinks and the density increases through the transfer of matter. The process of becoming a dense polycrystalline sintered body with a certain microstructure is one of the most important production processes in material processing. The sintering methods mainly include atmospheric sintering, vacuum sintering, hot pressing sintering, and atmosphere sintering.


PVD vacuum coating machine




The utility model belongs to the technical field of vacuum coating machines, and specifically relates to a cooling device of a vacuum coating machine.


Background technique:


The vacuum coating machine will generate a lot of heat when it is working, and it needs to be cooled in time and effectively to ensure its normal operation. At present, the common cooling device is to weld a circular tube on the outer surface of the vacuum coating machine cavity and pass cooling water into the tube. For cooling, with this structure, the cooling water does not directly contact the cavity of the vacuum coating machine, the cooling speed is slow, and the cooling is not timely, which can easily cause the vacuum coating machine to be damaged due to high temperature.


Therefore, there is an urgent need for a vacuum coating machine cooling device that can solve the above problems.


Technical realization elements:


The purpose of the utility model is to provide a cooling device for a vacuum coating machine, which is provided with a tube shell and a water nozzle to cool the inside of the vacuum coating chamber and the side wall of the vacuum coating chamber at the same time, so as to achieve the cooling effect.


The utility model provides the following technical solutions:


A cooling device for a vacuum coating machine includes a vacuum coating chamber, a refrigerating water tank, and a recovery water tank. The side walls of the vacuum coating chamber include an inner wall and an outer wall. A accommodating cavity is formed between the inner wall and the outer wall. The vacuum coating chamber A plurality of tube shells are arranged side by side on the inner walls on both sides of the tube, one end of the tube shell communicates with the outlet pipe of the refrigerating water tank, and the other end communicates with the inlet pipe of the refrigerating water tank. The inner wall is provided with a plurality of A water spray port, the water spray port is in communication with the pipe shell, one end of the containing cavity is provided with a first water outlet, and the first water outlet is connected to the recovery water tank. Cooling water is used to cool the inside of the vacuum coating chamber. Because the heat mainly comes from the coating area of the vacuum coating chamber, the cold water passing into the tube shell can take away a lot of heat. At the same time, the heat in the tube shell The cold water enters the accommodating cavity through the water spray port, and the side wall of the vacuum coating chamber is directly sprayed with water for cooling and further cooling, so as to achieve a cooling effect.


Preferably, the outlet pipe of the refrigerating water tank connected with the tube shell is provided with a high-pressure water pump, and the water spray port is a high-pressure water spray head. Water can be sprayed directly onto the inner wall of the containing cavity.


Preferably, the bottom of the accommodating cavity is inclined, and the lower end of the bottom of the accommodating cavity is provided with the first water outlet. Avoid the accumulation of water in the accommodating cavity. If there is too much water, the hot cold water will not be discharged. Even if new cold water enters, the cooling effect will be greatly reduced.


Preferably, the recovery water tank is provided with a water inlet and a second water outlet, the water inlet is communicated with the first water outlet, the water inlet is provided with a filter screen, and the second water outlet is connected to the refrigeration outlet. The inlet pipe of the water tank is connected. The filter screen can filter out impurities (such as residues and debris on the inner wall of the containing cavity) of the recovered water in the containing cavity, and then be reused.


Preferably, the outlet pipe of the refrigerating water tank is provided with a solenoid valve, and a temperature sensor is provided in the vacuum coating chamber, and the temperature sensor is electrically connected with the solenoid valve. The temperature in the vacuum coating chamber can be detected by the temperature sensor, so as to control the opening size of the solenoid valve and control the amount of cold water flowing in, so as to reduce the temperature while saving the usage of cold water.


Preferably, the tube shell is arranged along the length direction of the accommodating cavity, and the first water outlet is close to one end of the tube shell connected to the water inlet pipe of the refrigerating water tank and the first water outlet.


The beneficial effect of the utility model is that cooling water is used to cool the inside of the vacuum coating chamber. Because the heat mainly comes from the coating area of the vacuum coating chamber, the cold water passing into the tube shell can take away a large amount of heat. At the same time, the cold water in the tube shell enters the accommodating cavity through the water spray port, and the side wall of the vacuum coating chamber is directly sprayed with water for further cooling, so as to achieve a cooling effect.



PVD Vacuum Coating for Stainless Steel Sheet,rf dc sputtering system,PVD Vacuum Coating for Stainless Steel Sheet,rf dc sputtering system


Chat Online 编辑模式下无法使用
Chat Online inputting...