SMC hydraulic press is widely used, especially in new energy vehicle accessories. It is called the SMC new energy vehicle accessories molding hydraulic press, which is a composite material molding press.
Its main function is to press SMC sheets into metal molds to produce fiberglass products. There are a variety of structures, such as four-column type and frame type, to choose from. It adopts PLC control, easy operation, and adjustable working parameters. The equipment temperature, curing time, pressure, and speed meet the process characteristics of the material. The oil system is based on a high-precision plug-in logic valve system. The pipeline configuration is simple and clear. A flange connection is preferred for pipeline connection to prevent oil leakage. The motor, oil pump, and pipeline are fixed according to the standard to achieve earthquake and shock resistance.
Advantages of SMC automotive parts:* SMC has a high heat deformation temperature, HDT greater than 200℃, so it is suitable for manufacturing hoods, sunroofs, and trunk lids.* SMC parts are weather-resistant and durable, greatly reducing maintenance costs.* SMC parts have good impact resistance, absorbing 5 times the impact of steel.* SMC materials have sound insulation properties that are suitable for manufacturing automotive sound insulation parts.* SMC has pass-through characteristics that are suitable for manufacturing rear cargo doors with embedded integrated antennas.* SMC parts have very flexible design freedom.
Elements of SMC hydraulic press molded auto parts:
1. The molding pressure of composite materials varies with the product structure, shape, size, and SMC thickening degree. Products with simple shapes only require a molding pressure of 25-30Mpa. For products with complex shapes, the molding pressure can reach 140-210Mpa. The higher the SMC thickening degree, the greater the required molding pressure.
2. The size of the molding pressure of composite materials is also related to the mold structure. The molding pressure required for the vertical parting structure mold is lower than that for the horizontal. Molds with smaller matching gaps require higher pressure than molds with larger gaps. Products with high appearance, performance, and smoothness requirements require higher molding pressure during molding.
3. Since SMC is a fast curing system, the fast closing of the SMC new energy auto parts molding hydraulic press is very important. If the hydraulic press closes too slowly after adding materials, it is easy to have pre-curing patches on the product’s surface or to produce material shortages or oversize. While achieving fast closing, the mold closing speed should be carefully adjusted at the end of the 1000-ton frame hydraulic press stroke to slow the closing process and facilitate exhaust.
4. A hydraulic press and mold are the leading equipment for molded composite materials. The process is divided into feeding, mold closing, exhaust, curing, demolding, and cleaning. If the product has an insert that needs to be sealed during molding, the insert should be placed before feeding. The main controlled process conditions are pressure, temperature, and molding time.
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Company Name: Chengdu Zhengxi Hydraulic Equipment Manufacturing Co., Ltd.
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Country: China
Website: https://www.zx-hydraulic.com/
