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GRP roof tiles are a commonly used building material with the advantages of lightweight, corrosion resistance, and good weather resistance. They are widely used in the roofs and walls of buildings. Ho...
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The SMC insulator is a high-strength, high-insulation, lightweight insulating material. It is primarily composed of quartz, glass fiber, and other materials combined with resin. It finds extensive app...
BMC insulation parts are mainly used in switch circuit breaker shell, high-voltage power transmission and transformation structural parts, connectors, automobile internal accessories, protective parts and electrical insulation parts. It is also widely used in railway energy, transportation, industry, agriculture, automobile manufacturing, electrical power, chemical industry, machinery and other fields. Because BMC insulation has good physical, electrical and mechanical properties, it is also widely used in other fields, such as the production of transmission parts, intake pipes, valve covers, bumpers and other mechanical parts. It is also widely used in aviation, communication cabinet, wind energy, frequency conversion equipment, insulated terminal, pillar insulation and other related equipment. It is required to be anti-seismic, flame retardant, beautiful and durable. BMC insulation is used more and more widely in traditional electrical field.
Ⅰ. Molding process of BMC insulated parts
The molding process of BMC insulation parts is die casting molding. Die casting molding is a molding method between pressing and injection, also known as transfer molding, pressure molding or injection molding. It is to inject a certain number of properly preheated BMC molding material chambers during charging, and then inject the pressure in the plastic rapid chamber into the heat in the closed mold cavity by the plunger die casting mold to pressurize. Heat it again after filling the mold. And open the mold product if the product is fully solidified.
However, die casting is not suitable for large BMC insulated parts. It is suitable for small BMC insulation parts, support parts, structural parts and other products with complex insulation parts, openings, embedded parts and various shapes. In addition, it is also used for plastic seals and has the functions of insulation, anti-corrosion and anti-vibration.
Ⅱ. Die casting process conditions of BMC insulated parts
1. Molding temperature: The temperature of BMC insulated die is 120~150℃, and the preheating temperature is 15~20℃ lower than the die temperature, so as to prevent the generation of materials in the die casting chamber due to high temperature and premature curing.
2. Forming pressure: 1.5~2.5 times higher than pressing forming, 14~28Mpa.
3. Preheating time: 40~60 seconds/mm.
4. Filling time: 10~30 seconds/mm.
5. Curing time: 10~30s/mm.
As a leading BMC/SMC molds and BMC/SMC molded products manufacturer in China, Aobang Technology Company Limited provide various products, BMC/SMC molds including but not limited to motor mold, auto parts mold, SMC cable bracket moulding and frame molding; BMC/SMC molded products including but not limited to BMC/SMC motor, SMC auto parts. The high-composite precision molds produced by Waiwai Tree have the characteristics of low energy consumption; our SMC and BMC molds have no waste, and there is no need to clear the inner cavity. Having only a small temperature difference, our SMC/BMC composites have stable mold temperature, good appearance, and high efficiency. Thus, they are now widely used in new energy vehicles, high-speed rail, and electric motors. Feel free to contact us if you have any related need!
