Vacuum system - in the casting mould

in order to shorten the molding cycle and improve market competitiveness, mould companies have adopted more and more vacuum system technology. Vacuum system application in the casting mold is mainly used in large and medium-sized usually mould processing, such as automobile cover mould, pressure casting mold, large plastic molds and other surface processing. Surface machining precision can reach 0. 01mm。 Used in the production of vacuum system technology can greatly reduce the cycle time. High speed milling and after finishing, and only a small amount of polishing using mold surface, thus the grinding and polishing can save much time. Increase the vacuum system is one of the highlights of mould enterprises equipment investment.

in order to obtain the structure shape of parts, casting mould made of other easily molded materials in advance, and then place the casting mould in sand mould, so the same as the casting mould structure size of the mold parts formed in sand mold. Then, add fluid into the cavity, and after the liquid cooling and solidification can be formed with the same shape as the mold and the structure of the part. The casting mold is an important part of the casting process.

the working principle of the vacuum system is to start the system, the main vacuum pump group began to work, until the vacuum tank vacuum reached the upper limit of set, vacuum pump automatically stops running, the central vacuum system of vacuum by the vacuum check valve on the pipeline automatically cut off. Is maintained at the same time. If the vacuum tank vacuum decline due to job requirement and set below the lower limit value of the standby pump unit will start automatically. As a result, the vacuum degree of vacuum system can keep stable vacuum source to meet the production requirements.

the application industries: electrical engineering, textile, CNC engraving machine, vacuum forming machine, folding machine, exposure machine, computer, semiconductor, circuit boards, batteries, capacitors, binding machine, photographic plate maker, vacuum refrigeration and air conditioning technology, packaging machine, transformer, optical lenses, automatic injection molding technology of polyurethane, label pasting machine, plate exposure machine, circuit board machine vacuum lifting machine, vacuum suction cups, printing machine, VCD DVD surface vacuum sputtering, industrial furnace, smelting and heat treatment, vacuum coating, metal welding, vacuum electron beam welding, vacuum coating, vacuum dry welding, vacuum packaging industry, space simulation, scientific research, hospital negative pressure system, the environmental protection industry, electronics industry, laboratories, plastic industry, general machinery, glass, marble, metal heavy vacuum treatment and other industries.

vacuum system in the injection molding process of the die casting machine air out quickly from inside the cavity, so as to realize the vacuum die casting. Because the injection process time is very short, so could not rely on the vacuum pump exhaust air. The implementation of the process to achieve by vacuum tank. Vacuum water pump function is to discharge the air in the vacuum tank, to keep the vacuum tank in the high vacuum level. Then, in die casting, the control system to open the chamber and the cavity of the switch. The vacuum.

with the improvement of casting mold manufacturers product quality requirements, will be more and more enterprises adopt vacuum system. Vacuum system is not only from the extract air cavity, but also realize the blow, measuring, testing and data recording function.

user requirements is more and more short die mold delivery time and lower prices. In order to ensure on time delivery, effective management and cost control has become the main factors of mould company survival and development. Adopting advanced management information system to realize integration management. With the development of die casting industry, more and more die-casting manufacturers are using vacuum system. Now, many manufacturers put forward higher and higher requirements for die casting. Application of vacuum system in casting mould has two main advantages. The first is to reduce the porosity of the product, so as to improve the product percent of pass, the second is to reduce the front end of the molten metal pressure, which is beneficial to fill the shape.