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Nickel base projectile and preparation method thereof

A nickel-based, projectile technology, applied in the direction of manufacturing tools, metal processing equipment, abrasives, etc., can solve problems such as insufficient impact resistance and friction resistance, impact on the service life of the blade surface, and insufficient strengthening effect, etc., to achieve The effect of high durability, high consistency of density and element ratio, and small difference in surface shape

Inactive Publication Date: 2012-10-10
DAFENG DAQI METAL GRINDING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, my country's aerospace and aircraft engine turbines basically use glass shot or ceramic shot to strengthen the surface of the shot peening. When the blade is shot blasted in this way, the breakage rate is extremely high and the production efficiency is low. The use of the blade surface Lifespan also has an effect
Such projectile products have insufficient impact resistance and friction resistance during shot blasting or shot blasting, are easily broken, and have a short service life
Especially for the shot blasting and strengthening treatment of the surface of high-strength nickel-based materials, such as the metal surface treatment of workpieces with high safety performance requirements such as large aircraft engine manufacturing and aerospace, the disadvantages are particularly prominent, and the surface of the workpiece is changed. Stress state, hardening the surface of the workpiece, improving the wear resistance and fatigue strength of the part, such strengthening effects will not have the desired effect

Method used

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  • Nickel base projectile and preparation method thereof
  • Nickel base projectile and preparation method thereof
  • Nickel base projectile and preparation method thereof

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Experimental program
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Effect test

Embodiment 2

[0017] A nickel-based projectile, its weight percentage is composed of 76.76% nickel, 21.24% chromium, and the balance is iron and unavoidable impurities.

[0018] The average hardness is 355HV.

Embodiment 3

[0020] A nickel-based projectile, its weight percentage is composed of 77.25% nickel, 20.75% chromium, and the balance is iron and unavoidable impurities.

[0021] The average hardness is 350HV.

[0022] Nickel-based projectile embodiment four

[0023] A nickel-based projectile, its weight percentage is composed of 78.74% nickel, 19.26% chromium, and the balance is iron and unavoidable impurities.

[0024] The average hardness is 345HV.

[0025] Nickel-based projectile embodiment five

[0026] A nickel-based projectile, its weight percentage is composed of 79.25% nickel, 18.75% chromium, and the balance is iron and unavoidable impurities.

[0027] The average hardness is 340HV.

[0028] Nickel-based projectile embodiment six

[0029] A nickel-based projectile, its weight percentage is composed of 80.75% nickel, 17.25% chromium, and the balance is iron and unavoidable impurities.

[0030] The average hardness is 335HV.

[0031] Nickel-based projectile embodiment seven

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Abstract

A nickel base projectile and a preparation method thereof. The product is mainly used in surface strengthening of high-end nickel base components for aerospace, aircraft turbine blade and nuclear power component. The nickel base projectile comprises 75.25-83.25% of nickel, 14.75-22.75% of chrome, and the balance of iron and unavoidable impurities. The product has a tested average hardness of 340HV+ / - 20HV in load; and the product is prepared by a method comprising steps of: material selection for nickel base wire rod, heat treatment wire drawing, cutting, surface grinding hardening, heat treatment, screening, detection, packaging and storage.

Description

technical field [0001] The invention relates to a metal projectile product, in particular to a nickel-based projectile used for surface strengthening treatment of high-end nickel-based components such as aerospace, aircraft turbine blades, and nuclear power components. The invention also relates to a preparation method of the nickel-based projectile. technical background [0002] At present, my country's aerospace and aircraft engine turbines basically use glass shot or ceramic shot to strengthen the surface of the shot peening. When the blade is shot blasted in this way, the breakage rate is extremely high and the production efficiency is low. The use of the blade surface Lifespan also plays a role. Such projectile products have insufficient impact resistance and friction resistance during shot blasting or shot blasting, are easily broken, and have a short service life. Especially for the shot blasting and strengthening treatment of the surface of high-strength nickel-base...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24C11/00B23P15/00
Inventor 冯艳华王奇王静王林邱锋郑海鹏王梦茜
Owner DAFENG DAQI METAL GRINDING MATERIAL
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