Bright alloy steel sand production process

Abstract

The invention discloses a bright alloy steel sand production process. The bright alloy steel sand production process comprises the steps of raw material screening, heat treatment quenching, coarse crushing, graded intermediate crushing, fine crushing, bright tempering, secondary screening and packaging. According to the bright alloy steel sand production process, after alloy steel sand is subjected to bright tempering, the surface of the steel sand is made to form an anti-oxidation layer utilizing ammonia decomposition protective gases and vacuumizing treatment, and products are made to be stored longer; the alloy steel sand has the anti-oxidation layer, the surface layer is not prone to being rusted, the surface layer structure and the internal structure are stable and consistent, and thealloy steel sand is made to have more excellent impact resistance and wear resistance; the alloy steel sand has the anti-oxidation layer and durability to make the alloy steel sand be capable of replacing stainless steel grinding materials in most occasions, and the grinding material purchase cost is lowered by 30% or above; because the alloy steel sand has the anti-oxidation layer on the surface, in the process of practical application, generated dust is greatly reduced, the dust adhering to the workpiece surface is also greatly reduced, and reduction of the defective rate of workpieces is facilitated; and the surface of the alloy steel sand shows a bright metallic color.

Description

technical field [0001] The invention relates to a production process of bright alloy steel sand. Background technique [0002] Sand blasting is a common surface treatment method for metal products and some non-metal products. Sand blasting can change the outer layer or shape of the outer surface of the workpiece. Due to the impact and cutting effect of the abrasive used in sand blasting on the workpiece, the surface of the workpiece Obtaining a certain degree of cleanliness and different roughness improves the mechanical properties of the workpiece surface, thereby improving the fatigue resistance of the workpiece, increasing the adhesion of the coating on the surface of the workpiece, prolonging the durability of the coating, and is also beneficial Leveling and trimming of paints. Sandblasting is often used in industries and fields: surface treatment of steel structures, ships and locomotives, engineering machinery and castings, various metal pipes, frosted glass and patte...

AI Technical Summary

Problems solved by technology

[0008] The surface layer of forged steel grit is easy to corrode. After a long storage time, the surface structure of the steel grit is inconsistent with the internal structure, and the impact resistance and wear resistance of the rusted product are also weakened;

[0009] In the process of actual application, more dust is generated, and more dust adheres to the surface of the workpiece, and the product defect rate is relatively high

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