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An anti-oxidation treatment process for steel structure materials before heat treatment

A treatment process and steel structure technology, applied in the direction of metal material coating process, coating, molten spraying, etc., can solve the problems of high technical difficulty, increased heat treatment cost, high equipment cost, etc., achieve wide application prospects, improve roughness Degree, improve the effect of corrosion resistance and wear resistance

Active Publication Date: 2020-10-09
MAANSHAN SANCHUAN MACHINERY MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to prevent the oxidation of steel structure materials, the existing technology has to adopt vacuum heat treatment or atmosphere protection heat treatment in the industrial production process. These two heat treatment methods require special heat treatment equipment, and the equipment cost is high and the technical difficulty is high. A significant increase

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] An anti-oxidation treatment process for steel structure materials before heat treatment, the specific process steps are as follows:

[0028] 1) Pretreatment of steel structure materials

[0029] Melt the raw material of the steel structure material to obtain a steel solution, cast it into a mold, preheat the ultrasonic vibrating tool head at 1000°C for 15 minutes, then place the ultrasonic vibrating tool head in the middle of the casting mold, and immerse it into the steel solution to a depth of 1 / 3 place, vibrated at 900W for 30 minutes, then increased the vibration power to 1800W, continued to vibrate until the surface of the casting was basically solidified, took out the ultrasonic vibrating tool head, and waited until the steel melt was air-cooled until it was completely solidified. Pretreated steel structure materials;

[0030] 2) Roughening treatment of steel structure materials

[0031] When the temperature of the steel structure material drops to 1050°C, keep it...

Embodiment 2

[0045] An anti-oxidation treatment process for steel structure materials before heat treatment, the specific process steps are as follows:

[0046] 1) Pretreatment of steel structure materials

[0047] Melt the raw material of the steel structure material to obtain a steel solution, cast it into a mold, preheat the ultrasonic vibrating tool head at 1100°C for 12 minutes, then place the ultrasonic vibrating tool head in the middle of the casting mold, and immerse it into the steel solution at a depth of 1 / 3 place, vibrate at 1000W for 25 minutes, then increase the vibration power to 2000W, continue to vibrate until the surface of the casting is basically solidified, take out the ultrasonic vibrating tool head, and wait for the steel solution to be air-cooled until it is completely solidified. Pretreated steel structure materials;

[0048] 2) Roughening treatment of steel structure materials

[0049] When the temperature of the steel structure material drops to 1100°C, keep it...

Embodiment 3

[0063] An anti-oxidation treatment process for steel structure materials before heat treatment, the specific process steps are as follows:

[0064] 1) Pretreatment of steel structure materials

[0065] Melt the raw material of the steel structure material to obtain a steel solution, cast it into a mold, preheat the ultrasonic vibrating tool head at 1200°C for 10 minutes, then put the ultrasonic vibrating tool head in the middle of the casting mold, and immerse it into the steel solution to a depth of At 1 / 2 place, vibrate at 1200W for 20 minutes, then increase the vibration power to 2100W, continue to vibrate until the surface of the casting is basically solidified, take out the ultrasonic vibrating tool head, and wait until the steel solution is air-cooled until it is completely solidified. Pretreated steel structure materials;

[0066] 2) Roughening treatment of steel structure materials

[0067] When the temperature of the steel structure material drops to 1150°C, keep it...

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Abstract

The invention discloses an anti-oxidation treatment technology before steel structure material heat treatment. The anti-oxidation treatment technology specifically comprises the following steps of (1)steel structure material pretreatment, (2) steel structure material roughening treatment, and (3) steel structure material surface spraying treatment. According to the anti-oxidation treatment technology, by processing a steel structure material, on the premise that the strength of the steel structure material meets the industrial requirement, the grain size of the steel structure material is increased as much as possible, the surface height of the steel structure material is made to be different, and accordingly, the surface roughness of the steel structure material is improved; then, spraying powder is sprayed onto the surface of the steel structure material, an anti-oxidation coating is formed, oxygen is stopped from scattering into the steel structure material, and the situation thatthe steel structure material oxidizes in the heat treatment process, and oxide scale is generated is effectively prevented; and in addition, the corrosion resistance and the abrasion resistance of thesteel structure material can be improved through the coating subjected to heat treatment, influence on direct using or follow-up machining of workpieces is avoided, and the wide application prospectis achieved.

Description

technical field [0001] The invention belongs to the technical field of steel structure surface treatment, and in particular relates to an anti-oxidation treatment process for steel structure materials before heat treatment. Background technique [0002] Steel structure materials are not only widely used in national defense construction, but also occupy an important position in economic life. With their strong advantages and huge usage, steel structure materials play an important role in the national economy. [0003] Steel structure materials must be heated to a high temperature to complete the processes of quenching, annealing, normalizing, rolling and die forging. A strong oxidation reaction occurs at high temperature to generate a large amount of oxide scale. Oxidation not only causes the loss of steel structure materials, but also leads to the depletion of alloy elements in steel structure materials, which affects the quality and mechanical properties of steel structure ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D27/00C21D7/13C21D8/00C23C4/134C23C4/06C23C4/11
CPCB22D27/00C21D7/13C21D8/005C23C4/06C23C4/11C23C4/134
Inventor 李孙德
Owner MAANSHAN SANCHUAN MACHINERY MFG CO LTD
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