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Discussion on metallurgical process of steel flange fasteners.


Date:

2024-03-29

The metallurgical process of steel flange fasteners mainly includes the following aspects:

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The metallurgical process of steel flange fasteners mainly includes the following aspects:

1. Material selection: The selection of high-quality steel is the premise of ensuring the quality of fasteners. Generally speaking, fastener manufacturers will choose different types of steel such as low carbon steel, medium carbon steel and high carbon steel to meet the needs of different strengths and use environments.

2. Melting: Put the selected steel into the melting furnace and melt it into hot metal through high temperature heating. In this process, attention should be paid to controlling the furnace temperature to ensure the uniformity of the melting process and avoid excessive inclusions.

3. Casting: Pour the molten iron into the mold, cooling and solidification molding process. Casting quality directly affects the performance of fasteners, so it is necessary to choose high-performance molds, and strictly control the temperature and time during the casting process.

4. Heat treatment: In order to improve the strength and hardness of fasteners, it is necessary to heat treat them. Common heat treatment processes are quenching, annealing and tempering. The temperature and time of heat treatment need to be determined according to the material and performance requirements of the fastener.

5. Machining: The fasteners after heat treatment also need to be machined to achieve the specified size and shape. Machining process including cutting, grinding, drilling and other processes, need to choose the appropriate machine tools and tools, and strictly control the processing accuracy.

6. Surface treatment: In order to improve the corrosion resistance of fasteners, the surface needs to be treated. Common surface treatment processes are zinc plating, nickel plating, copper plating and so on. Surface treatment can not only improve the corrosion resistance of fasteners, but also increase their aesthetics.

7. Quality inspection: In the entire production process, the fasteners need to carry out strict quality inspection to ensure that they meet national standards and user requirements. The test contents include size, shape, material, hardness, tensile strength and so on.

In short, the metallurgical process of steel flange fasteners covers material selection, melting, casting, heat treatment, machining, surface treatment and quality inspection, and each link needs to be strictly controlled to ensure the quality and performance of the final product.
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Key Words:

flanged,pipe fittings