The application of piston vacuum pump in the production of high strength metal can solve the problems raised in the following contents. On some construction sites, some suggested houses will be constructed for workers or storage facilities. Usually, the proposed houses are made of some foam steel plates. Although the cost of the steel plate is low, it is not convenient to load and unload while the safety factor is not high. In order to improve the safety of the buildings on the construction site, many construction sites began to use some high-strength metal splicing houses, and the roof of the house is the focus of the whole house. The roof of the roof needs to be easy to install and dismantle, but also has enough strength.
Piston vacuum pump belongs to gas trapping pump, which makes gas molecules adsorb or condense on the inner surface of the pump, so as to reduce the number of gas molecules in the container and achieve the purpose of suction.
Features of high strength metal fabrication:
(1) It has good adaptability to the shape and size of castings. It can produce blanks of various shapes and sizes, especially suitable for parts with complex cavities.
(2) It has strong adaptability to materials. It can adapt to the forming of most metal materials. For the materials not suitable for forging and welding, casting has unique advantages.
(3) The casting cost is low. This is due to the rich source of casting raw materials and the shape of casting is close to the parts, which can reduce the cutting amount and reduce the casting cost.
The working principle of the piston vacuum pump is that the main components of the pump are the cylinder and the reciprocating linear movement in it. The piston is driven by a crank connecting rod mechanism. In addition to the above main components, there are exhaust valve and suction valve.
When the piston vacuum pump is running, under the drive of the motor, the piston in the cylinder will move reciprocally through the crank connecting rod mechanism. When Wang Shi talks from the storage end to the right end in the waiting boat. As the volume of the left chamber of the cylinder increases continuously, the density of the gas in the cylinder decreases, and the process of pumping is formed. At this time, the gas in the container enters the left cavity of the pump body through the suction valve. When the piston reaches its rightmost position, the cylinder is completely filled with gas. Then the piston moves from the right end to the left end, and the suction valve is closed. The gas in the cylinder is gradually compressed with the piston moving from right to left. When the pressure of the gas in the cylinder reaches or is slightly greater than an atmospheric pressure, the exhaust valve is opened to exhaust the gas into the atmosphere to complete a working cycle. When the piston moves from left to right again, a part of the gas is sucked in and the previous cycle is repeated until the gas pressure in the volume to be pumped meets the requirements.
Compared with the existing technology, the beneficial effect of the application of piston vacuum pump in high-strength metal production is: the high-strength metal splicing piece is convenient for installation and disassembly, and can support with high strength after installation, making the splicing piece more practical and safe.
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