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Passivation alloy grinding reinforced steel shot and preparation method thereof

A technology for strengthening steel and alloys, applied in the field of passivation alloy grinding and strengthening steel shot and its production method, which can solve the problems of serious pollution, high crushing rate, and more dust, and achieve high density, improved strengthening efficiency, and consistent element ratio. high effect

Active Publication Date: 2013-09-25
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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  • Passivation alloy grinding reinforced steel shot and preparation method thereof
  • Passivation alloy grinding reinforced steel shot and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1: Material

[0039] The metallographic structure of grinding and strengthening steel shot is deformed pearlite, and its material is calculated by element percentage: carbon 0.70-0.85%, manganese 0.60-1.0%, silicon 0.20-0.40%, sulfur ≤ 0.01%, phosphorus ≤ 0.02%, chromium 0.035-1.0%, nickel 0.035-1.0%, the balance is iron and unavoidable impurities.

[0040] The applicant found through experiments that when the chromium content is all 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; The strength is directly proportional. 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 less than 0.015%, the physical and chemical properties of the product (especially product plasticity, strength and service life)...

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: Grinding equipment is used to knead and grind the cylinder until the shape of the product is a polygonal sphere or a polygonal ellip...

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Abstract

The invention relates to a cut steel wire shot metal abrasive, specifically to a passivation alloy grinding reinforced steel shot and a preparation method thereof. Essentially, the reinforced steel shot is prepared by adopting a preparation method for a cut steel wire shot. The invention is characterized in that the metallographic structure of the grinding reinforced steel shot is deformed pearlite, and the reinforced steel shot comprises, by weight, 0.70 to 0.85% of carbon, 0.60 to 1.0% of manganese, 0.20 to 0.40% of silicon, no more than 0.01% of sulfur, no more than 0.02% of phosphorus, 0.035 to 1.0% of chromium and 0.035 to 1.0% of nickel, with the balance being iron and unavoidable impurities. According to the invention, a heat treatment alloy wire rod with element content identical to that of a finished passivation alloy grinding reinforced steel shot is used as a raw material to produce the passivation alloy grinding reinforced steel shot; and the passivation alloy grinding reinforced steel shot has the advantages of high element proportion consistency, small derivation of hardness, high density, a uniform particle size, high strength, no hollow, no crack and a good surface strengthening effect on metal.

Description

technical field [0001] The invention relates to a steel wire cutting shot metal abrasive, in particular to a passivation alloy grinding strengthening 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 striking and grinding effects to clean and strengthen the surface strength. [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 abra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/40B02C17/20
Inventor 纪云成王继利纪立成
Owner 淄博富合磨料科技有限公司