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Wear-resisting alloy steel for door handle and preparation method thereof

A technology of alloy steel and door handles, which is applied in the field of alloy steel, and can solve problems such as surface wear and corrosion, affecting appearance and use, strength, hardness, toughness and other mechanical and mechanical performance defects

Inactive Publication Date: 2016-12-14
ANHUI KATA DOOR & WINDOW
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the surface of the currently commercially available alloy steel for door handles is prone to wear and corrosion during use, and its mechanical properties such as strength, hardness, and toughness also have defects, which affect its appearance and use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) The alloy steel is washed with water and alcohol, followed by 3 anaerobic calcination at a temperature of 230° C., and then placed in sodium dodecylbenzenesulfonate with a concentration of 30 g / L for 30 seconds of activation treatment;

[0021] (2) Raise the temperature of the activated alloy steel from 22°C to 580°C at a rate of 20°C / min, and keep it at 580°C for 60 minutes to perform the first heating heat treatment; then from 580°C at a rate of 10°C / min Raise the temperature to 780°C at a heating rate of min, and keep it at 780°C for 160 minutes to perform the second heating heat treatment;

[0022] (3) Quenching the heat-treated alloy steel with a PAG quenching agent with a volume concentration of 6%, then raising the temperature from 40°C to 400°C at a heating rate of 20°C / min, and keeping it at 400°C for 60min or less Heating is carried out, and finally placed in a sodium chloride solution with a volume concentration of 16g / L to obtain wear-resistant alloy ste...

Embodiment 2

[0025] (1) Wash the alloy steel with water and alcohol, then perform anaerobic calcination at a temperature of 250° C. for 4 hours, and then place it in fatty acid glyceride with a concentration of 40 g / L for 50 seconds of activation treatment;

[0026] (2) Heat the alloy steel after activation treatment from 26°C to 620°C at a heating rate of 25°C / min, and keep it at 620°C for 80 minutes to perform the first heating heat treatment; then from 620°C at a rate of 15°C / min The heating rate of min is raised to 820°C, and the heat treatment is carried out at 820°C for 180min for the second heating;

[0027] (3) Quenching the heat-treated alloy steel with a PAG quenching agent with a volume concentration of 10%, then raising the temperature from 45°C to 460°C at a heating rate of 25°C / min, and keeping it at 460°C for 80 minutes or more Heating is carried out, and finally placed in a sodium chloride solution with a volume concentration of 20g / L to obtain wear-resistant alloy steel A2...

Embodiment 3

[0030] (1) Wash the alloy steel with water and alcohol, then perform anaerobic calcination at a temperature of 240°C for 3.5h, and then place it in sodium glycocholate with a concentration of 35g / L for 40s of activation treatment;

[0031] (2) Heat the alloy steel after activation treatment from 24°C to 600°C at a heating rate of 23°C / min, and keep it at 600°C for 70 minutes to perform the first heating heat treatment; then from 600°C at a rate of 10°C / min Raise the temperature to 800°C at a heating rate of min, and keep it at 800°C for 170min to perform the heat treatment of the second heating;

[0032] (3) Quenching the heat-treated alloy steel with a PAG quenching agent with a volume concentration of 8%, then raising the temperature from 42°C to 430°C at a heating rate of 23°C / min, and keeping it at 430°C for 70min or less Heating is carried out, and finally placed in a sodium chloride solution with a volume concentration of 18g / L to obtain wear-resistant alloy steel A3 for...

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PUM

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Abstract

The invention discloses wear-resisting alloy steel for a door handle and a preparation method thereof. The method comprises the steps that (1) alloy steel is subjected to water washing and alcohol washing and then subjected to oxygen-free calcination and then is put into an activating agent to be subjected to activating treatment; (2) the alloy steel subjected to activating treatment is subjected to primary heating heat treatment and secondary heating heat treatment in sequence; and (3) the alloy steel subjected to heat treatment is subjected to quenching and heating and then is put into a sodium chloride solution to obtain the wear-resisting alloy steel for the door handle, wherein elements in the alloy steel include, by weight, 0.25-0.55% of C, 0.15-0.35% of Si, 0.20-0.30% Mn, 0.3-0.55% of Mo, 0.15-0.4% of Mg, 0.05-0.15% of Ge, and the balance Fe; and the oxygen-free calcination temperature is 230-250 DEG C, and the oxygen-free calcination time is 3-4 h. The door handle wear-resisting alloy steel manufactured through the method has excellent mechanical properties and wear-resisting property.

Description

technical field [0001] The invention relates to alloy steel, in particular to a wear-resistant alloy steel for a door handle and a preparation method thereof. Background technique [0002] As a part of the door, the door handle has many types of materials, and the common door handle materials are wood, metal and so on. Wooden materials are flammable, easy to deform, difficult to repair after being damaged, easy to crack, scar, poor corrosion resistance, susceptible to insects, etc., and prone to mildew when exposed to moisture, which limits its application as a door handle. Common materials used for metal door handles include metal iron, metal aluminum, metal copper, alloy steel, etc. Metal iron is prone to rust and is not durable; metal aluminum has low hardness and is easily deformed, so it is not suitable; metal copper is a high-energy-consuming material that consumes a lot of energy. Alloy steel has the characteristics of high strength, easy processing, low cost, low o...

Claims

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Application Information

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IPC IPC(8): C22C38/12C22C38/02C22C38/04C21D1/18C23F17/00C23C22/68
CPCC22C38/12C21D1/18C22C38/002C22C38/02C22C38/04C23C22/68C23F17/00
Inventor 洪长林
Owner ANHUI KATA DOOR & WINDOW
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