What are the things to know before powder metallurgy products open mold?
Powder metallurgy is a method of using metal powder or a mixture of metal powder and non-metal powder as raw materials, through the process of forming and sintering, to produce metal materials, composite materials and various types of products. The mold opening of powder metallurgy products is an important link, which directly affects the quality, performance and cost of products. Therefore, before opening the mold, it is necessary to understand the following aspects:
First, the design of powder metallurgy products
The design should consider the shape, size, structure, function, performance and other requirements of powder metallurgy products, as well as the coordination and assembly method with other parts. The design should follow the design principles of powder metallurgy products, such as using simple symmetrical shapes as far as possible, avoiding overly complex or elongated parts, and reducing the difficulty and cost of processing. The shrinkage of powder metallurgy products should also be considered in the design, and the appropriate shrinkage coefficient should be selected according to different materials and processes to ensure the dimensional accuracy after forming.
Second, the design of powder metallurgy mold
Mold is the key equipment of powder metallurgy products forming, which determines the shape, size, density, strength and so on. Mold design should be based on the design of powder metallurgy products, choose the appropriate mold type, structure, material, surface treatment, etc. The design of the mold should consider the strength, stiffness, wear resistance, thermal conductivity, exhaust and other factors of the mold to ensure the service life and forming quality of the mold. The design of the mold should also consider the processing technology and assembly method of the mold to improve the processing efficiency and accuracy of the mold.
Third, the choice of powder metallurgy process
The process is the forming process of powder metallurgy products, which includes powder selection, mixing, pressing, sintering and other steps. The selection of the process should be based on the design of powder metallurgy products and molds, and the appropriate powder types, specifications, ratios, etc., should be selected to meet the performance requirements of the products. The selection of the process should also be based on the equipment conditions and production conditions, and the appropriate pressure, temperature, time and other parameters should be selected to ensure the forming efficiency and quality.
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Material: Mainly produce stainless steel base, iron base, copper base, copper and iron alloy base. Products: Gear, flange, G Bushing, positioning ring, rotor, counterweight, valve disc, VVT parts, clutch parts, oil pump parts, bearings.
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