High Al-Zn-Ti permeating agent and multi-component co-permeation method thereof

A multi-co-infiltration, high-alumina technology, applied in the direction of temperature control using electric method, metal material coating process, auxiliary controller with auxiliary heating device, etc., can solve the problem of low strength and wear resistance of infiltration layer, High heating and heat preservation temperature, workpiece deformation and other problems, to achieve the effect of high adhesion strength, fast heating speed and extended service life

Pending Publication Date: 2018-03-06
WUHAN JINYE TECH
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  • Claims
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Problems solved by technology

In order to improve the comprehensive performance and service life of metal materials, the Chinese invention patent CN1428454A "Zinc-Aluminum Embedded Co-infiltration Method for Iron and Steel Products and Its Infiltration Agent" adopts the infiltration agent embedded in iron and steel products, and heat preservation treatment at 400 to 600 °C After 3 to 10 hours, a zinc-aluminum co-infiltration layer with a double-layer structure that is rich in aluminum on the outer layer and rich in zinc on the inner layer is formed on the surface of the steel product, which improves the corrosion resistance and oxidation resistance of the steel product. Its shortcomings and shortcomings The strength and wear resistance of the infiltration layer are not high, and zinc powder is used as an

Method used

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  • High Al-Zn-Ti permeating agent and multi-component co-permeation method thereof
  • High Al-Zn-Ti permeating agent and multi-component co-permeation method thereof
  • High Al-Zn-Ti permeating agent and multi-component co-permeation method thereof

Examples

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Example Embodiment

[0046] Example 1: Embed the rail fittings, rail grooves and other workpieces after degreasing, rust removal and sandblasting in a penetrant, and in a closed rotary mechanical furnace, heated by a medium to achieve dynamic friction and diffusion , to complete the co-infiltration process of the infiltrating agent and the rail fittings, rail grooves and other workpieces, without zinc vapor pollution. The aluminum-zinc-titanium multi-infiltration of rail fittings, rail grooves and other workpieces adopts stepped temperature heating, first heated to 400 ° C, heat preservation: 4h, then heated to 800 ° C, heat preservation for 4 hours, and then cooled and released. The composition of the penetration agent is: 10% titanium powder, 10% high aluminum zinc alloy powder, 79% alumina powder and 1% ammonium chloride.

[0047] Metallographic analysis shows that the multi-element alloy infiltration layer formed on the surface of the workpiece such as rail fittings and rail grooves is a diffu...

Example Embodiment

[0049] Example 2: Embed the rail fittings, rail grooves and other workpieces after degreasing, rust removal and sandblasting in a penetrant, and in a closed rotary mechanical furnace, heated by a medium to achieve dynamic friction and diffusion , to complete the co-infiltration process of the infiltrating agent and the rail fittings, rail grooves and other workpieces, without zinc vapor pollution. The aluminum-zinc-titanium multi-infiltration of rail fittings, rail grooves and other workpieces adopts stepped temperature heating, first heated to 400 ° C, heat preservation: 6h, and then heated to 800 ° C, kept for 6 hours, and then cooled and released. The composition of the penetration agent is: 20% titanium powder, 20% high aluminum zinc alloy powder, 57% alumina powder and 3% ammonium chloride.

[0050] Metallographic analysis shows that the multi-component alloy infiltration layer formed on the surface of the rail fittings, rail grooves and other workpieces is a diffusion-ty...

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Abstract

The invention discloses a high-aluminum-zinc titanizing agent and a multi-component co-infiltration method thereof, which comprise the following components in parts by weight: 10-20 parts of titanium powder, 10-40 parts of high-aluminum-zinc alloy powder, 20-80 parts of alumina powder and 1-3 parts of ammonium chloride. The invention is applied to the surface treatment of rail fittings, rail grooves and other workpieces, and can significantly improve the oxidation resistance, corrosion resistance and wear resistance of rail fittings, rail grooves and other workpieces.

Description

technical field [0001] The invention belongs to the technical field of metal product processing, and specifically refers to a high-aluminum-zinc-titanizing agent and a multi-component co-infiltration method thereof. Background technique [0002] The urban rail construction period is long, the investment is huge, and it is closely related to the social and people's livelihood. It has a strong influence and guiding role on urban development, and has been widely concerned by governments at all levels and the public. Since the beginning of the new century, my country has intensified the construction of urban rail transit. Major cities have successively introduced public transportation network plans based on rail transit such as subways and light rails. Urban rail transit has entered a period of rapid development. The rapid development of urban rail transit has driven the development of related industries such as rail fittings and rail grooves, and put forward higher requirements...

Claims

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Application Information

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IPC IPC(8): C23C10/52G05D23/30
CPCG05D23/30C23C10/52
Inventor 潘献波何良俊
Owner WUHAN JINYE TECH
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