Car Rack Type Material Development
In the past, our company adopted vacuum thermoforming technology in the production of Fukang car mats, sun visors, and a 201 instrument panel. Its practice is to use only a domestic vacuum pump for vacuuming when vacuuming. It is a zx-3oA vacuum pump manufactured by Wuxi Vacuum Pump Factory. Its parameters are: pumping rate 3O1/S, that is, pumping capacity is 108/h, limit pressure is 6x10-ZPa, motor power is 3KW, noise is 82dB, Another pump is equipped with a cooling water system.
During production, the vacuum pump is constantly on, and when it is time to evacuation, the hot air can only be pumped away slowly, making the edges and corners of the product unclear and failing to meet the quality requirements of the product. At the same time, the noise generated by the operation of the vacuum pump on the production site affects the health of the workers and also consumes a large amount of cooling water. In order to ensure product quality, improve working conditions of workers, and reduce water consumption, we consulted relevant foreign technical data, visited and analyzed relevant equipment produced in Germany and Italy, and learned unsuccessful lessons based on the characteristics of vacuum thermoforming technology. The joint research, development, design and manufacture of vacuum systems for automotive trim parts with manufacturers, replacing the vacuum pumping practice of a single vacuum pump, produces large quantities of qualified trim products.
Vacuum and technical membranes, vacuum smelting, vacuum degassing, and vacuum-casting “vacuum†in the metallurgical industry mean gas conditions below the standard large casting, vacuum rolling, chemical industry vacuum distillation, and vacuum overpressure in a given space. . Vacuum freeze-drying and vacuum concentration in the instrument industry. In the vacuum technology, the vacuum heat treatment and vacuum welding of the armament industry are under vacuum conditions. The degree of leanness in the pharmaceutical industry is called the vacuum degree, and the pressure is used as the residual pressure. Bacteria, vacuum drying, and the vacuum environment mold force value of aerospace technology are expressed in terms of Tor as a unit, according to pressure simulation, and artificial satellite research.
In order to meet the user's requirements, the automobile production unit ITOr II 13.332Pa. trim and other automotive products production also uses a lot of vacuum technology. According to different degrees of vacuum, the vacuum zone is usually divided from the use of vacuum technology in various industries, the main pursuit: the following purposes: crude vacuum: less than 760 IOTor, about 101 application of vacuum technology, so that a space caused by oxygen 1.3 Mba without air state to carry out a certain process, in order to improve product quality, low vacuum: less than 10-101-3Tor, about 1.3 as a metallurgical industry, such as vacuum smelting.
Vacuum technology is used to make the heated material in the mold very high vacuum: less than 10ITor material shaping and shape, to produce a set shape of the product, such as the use of mechanical, physical, chemical or physical chemical methods of automotive accessories. Volumetric vacuum pumping machines or devices are all characterized by the vacuum thermoforming technology of automotive trim parts called vacuum pumps.
Generally divided into volume, jet and other types of auto parts vacuum thermoforming technology is vacuum technology and other three categories. Vacuum pumps for automotive trims are volumetric vacuum. From the point of view of the production of automotive trim parts at home and abroad, rotary vacuum pumps of pumps are commonly used. The use of vacuum thermoforming technology, the basic characteristics of the process vacuum pump's main performance indicators; ultimate vacuum: vacuum pump under a given condition, through the 1 for vacuum molding material temperature is high (usually achieved after sufficient pumping stability The lowest pressure.
The formation of heated material is the formation of the maximum back pressure at the initial pressure of the mold: the vacuum of the fore-stage vacuum is required to perform the vacuuming; the pump, when operating under the specified load, the back pressure rises to 5, with a single When the vacuum pump is unable to produce a certain set value, the pump loses its normal pumping capability. The anti-grid automotive trim product. Pressure is called maximum back pressure. According to my company's previous experience and lessons, in the inspection, divided starting pressure: the pump can start the starting work of the pressure analysis of Germany, Italy, Japan and other countries of the automobile parts production and design force.
After preparation, it is necessary to reliably realize the adoption of vacuum thermal vacuum technology for automobile trims. It has been widely used in various sectors of the national economy, and the type technology is used for production. According to the characteristics of its processes, exhaust gas of vacuum devices such as electronic industry should be used. Plating system. Vacuum system: The vacuum system used for the production of decorative parts is composed of seven parts: vacuum pump, vacuum tank, suction filter, solenoid valve, vacuum pressure gauge, electrical and pipeline. The vacuum pump is the heart of the vacuum system. The degree of vacuum (remaining pressure) of the vacuum pump is within the range of rough vacuum, that is, within a range of 101 to 1.3 mba. The displacement of the vacuum pump must meet the production process requirements of the trim. The vacuum tank is an important part of the vacuum system and is an accumulator. When starting and not vacuuming, the vacuum pump extracts the gas inside to reach the set vacuum.
When the vacuum operation is performed, the vacuum tank generates a great suction force, and the heated object (such as the PvC skin) is attracted to the mold surface within a moment to form and shape the object. At the same time, the vacuum pump will continuously pump the gas, hot moisture and dust particles in the vacuum tank to keep the system within the set vacuum. The solenoid valve is an electronically controlled automatic switch of the vacuum system. When vacuum is needed, the solenoid valve can be opened by turning on the power supply. When no vacuum is required, the power valve is closed and the operation is completed as long as the power is turned off.
Aluminum Alloy Die Casting
Laishun Metalwork Co., Ltd. , http://www.zjdiecasting.com