1, the vacuum pump should be installed on the ground strong and solid place, there should be sufficient room around for easy inspection, maintenance and repair.
2, under the base of the vacuum pump should maintain the level of the foundation, the corners of the base cushion pad rubber or recommended damping installation, ensure the smooth operation of the vacuum pump, small vibration.
3, the connection between the vacuum pump and the system should be sealed and reliable, the small vacuum pump can be used metal pipe connection seal with oil-resistant rubber, small vacuum pump can be connected with a vacuum hose, pipe diameter not less than vacuum pump suction caliber, Short and few elbows. (Weld pipe should be removed when the welding slag, welding slag is prohibited to enter the vacuum chamber.)
4, in the connecting pipe, the user can install the valve above the vacuum pump inlet and vacuum gauge, vacuum pump can check the ultimate pressure at any time.
5, according to motor signs connected to the power supply, and ground wire and install the appropriate specifications of the fuse and thermal relay.
6, the vacuum pump power test run, remove the motor belt to confirm the vacuum pump steering direction can be put into use only to prevent the vacuum pump reverse fuel injection. (Steering direction by the shield instructions)
7, for the cooling water pump, according to the provisions connected to the cooling water.
8, such as vacuum pump inlet valve installation, the valve and the vacuum pump should be at the same time action.
9, when the vacuum pump exhaust gas affect the working environment, the exhaust port can be connected to the pipeline to remove or install the oil mist filter.
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Water-assisted injection molding: Water-assisted injection molding technology is an advanced injection molding process in which part of the melt is injected into the mold cavity and high-pressure water is injected into the melt through the equipment to finally shape the workpiece.
Due to the incompressibility of water, the water front creates a solid interface, squeezing the inner wall of the product into a cavity, and the water front also acts as a rapid cooling. Therefore, the water supplement has many advantages over the gas supplement. Research and application show that the water supplement can produce thinner and more uniform cavity wall, and the inner surface of the flow channel is very smooth. Especially for thick wall workpiece, the cooling time can be greatly reduced compared with gas auxiliary.
High gloss injection molding: Highlights the basic process of injection molding is prior to injection molding, through the use of high temperature and high pressure steam will mould surface rapidly warming, the forming die cavity surface temperature of resin plastic glass transition temperature (Tg) above, then the plasticizing good plastic melt into the closed mold cavity, the injection stage, mold temperature by high temperature and high pressure steam remains the same, When the injection is finished, the air supply is stopped, and the water vapor in the pipe is blown clean by air pressure of the air pipe. After that, the cooling water is injected to make the mold temperature drop rapidly until the mold is cooled and the product is removed by opening the mold
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