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Passivated alloy grinding and cleaning steel shot and preparation method thereof

A steel shot and alloy technology, which is applied in the field of passivated alloy grinding and cleaning steel shot and its manufacturing method, can solve the problems of excessive dust, serious pollution, high breakage rate, etc., and achieve high density, high element ratio consistency, and improved cleaning efficiency Effect

Active Publication Date: 2013-10-02
淄博富合磨料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Non-metallic abrasives generally include copper ore, quartz sand, river sand, corundum, glass, etc. The disadvantages are high breakage rate, high dust and serious pollution.

Method used

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  • Passivated alloy grinding and cleaning steel shot and preparation method thereof
  • Passivated alloy grinding and cleaning steel shot and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1: Material

[0039] The metallographic structure of the ground and cleaned steel shot is deformed pearlite, and its material is calculated by element percentage: carbon 0.50-0.70%, manganese 0.50-0.80%, silicon 0.20-0.40%, sulfur ≤ 0.01%, phosphorus ≤ 0.02%, chromium 0.02-1.0%, nickel 0.02-1.0%, the balance is iron and unavoidable impurities.

[0040] The applicant found through experiments that when the chromium content is lower than 0.02%, especially lower than 0.015%, the physical and chemical properties of the product (especially product plasticity, strength and service life) have nothing to do with the chromium content; when the chromium content is greater than 1%, , the cost is high, and the plasticity of the product is reduced, and the service life of the product is reduced.

[0041] When the nickel content is lower than 0.02%, especially lower than 0.015%, the physical and chemical properties of the product (especially product plasticity, strength and ...

Embodiment 2

[0042] Embodiment 2: method for making

[0043] 1) Annealing: The alloy wire is subjected to isothermal annealing treatment to reduce its strength to achieve the purpose of wire drawing.

[0044] 2) Phosphating: Phosphating the alloy wire with a phosphating solution, in which 0.1-1 wt% lubricant is added, and the lubricant is liquid paraffin. The phosphating solution is made of Fe(H 2 PO 4 ) 2 , Mn(H 2 PO 4 ) 2 and Zn(H 2 PO 4 ) 2 The composed acidic dilute aqueous solution has a pH value of 1-3 and a relative density of the solution of 1.05-1.10.

[0045] 3) Draw the alloy wire into a steel wire with a size of 0.2-2mm;

[0046] 4) cutting;

[0047] 5) Passivation: Use passivation equipment to impact the cylinder sections at high speed to eliminate internal stress and increase the impact resistance of the product.

[0048] 6) Grinding: Use grinding equipment to rub and grind the cylinder until the shape of the product is a polygonal sphere or a polygonal ellipsoid....

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Abstract

The invention relates to a cut steel wire shot metal abrasive, in particular to a passivated alloy grinding and cleaning steel shot and a preparation method thereof. The grinding and cleaning steel shot is intrinsically prepared with a cut steel wire shot method, and is characterized in that a metallographic structure of the grinding and cleaning steel shot is deformation pearlite, and the grinding and cleaning steel shot comprises the following elements in percentage by weight: 0.50-0.70% of carbon, 0.50-0.80% of manganese, 0.20-0.40% of silicon, less than or equal to 0.01% of sulfur, less than or equal to 0.02% of phosphorus, 0.02-1.0% of chromium, 0.02-1.0% of nickel, and the balance of ferrum and unavoidable impurities. The passivated alloy grinding and cleaning steel shot is produced by adopting an alloy heat treatment wire material with the element content being consistent with the finish passivated alloy grinding and cleaning steel shot as a raw material, and is high in element ratio consistency, small in hardness deviation, high in density, uniform in granularity size, and moderate in strength without a hollow or a crack, and the efficiency of cleaning a metal surface is improved obviously.

Description

technical field [0001] The invention relates to a steel wire cutting shot metal abrasive, in particular to a passivation alloy grinding and cleaning steel shot and a preparation method thereof. Background technique [0002] During the long-term storage of steel, there are generally oxide scales, rust, grease and other impurities on the surface, which must be removed before painting. Now the shot blasting treatment method is widely used, that is, the high-speed rotating impeller of the shot blasting equipment is used to throw the abrasive to the surface of the component, resulting in impact and grinding to achieve the purpose of cleaning. [0003] Abrasives for surface treatment of steel can be divided into non-metallic and metallic according to their materials. Non-metallic abrasives generally include copper ore, quartz sand, river sand, corundum, glass, etc. The disadvantages are high breakage rate, high dust and serious pollution. [0004] Metal abrasives can be divided ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/40B24C11/00B23P15/00
Inventor 纪云成王继利纪立成
Owner 淄博富合磨料科技有限公司