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High-strength wear-resistant closed steel frame and machining process thereof

A processing technology and steel frame technology, applied in metal material coating technology, liquid chemical plating, cleaning methods and utensils, etc., can solve problems such as unsatisfactory wear resistance, complicated process steps, and easy peeling of coatings, etc., to achieve Improved comprehensive wear resistance, reasonable process design, and excellent wear resistance

Active Publication Date: 2021-08-06
常州市天河电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the wear resistance of steel profiles in the prior art, many related patents or documents have been disclosed, but the common method is to coat the surface of steel profiles with a wear-resistant coating, which has high cost and complicated process steps, and the coating is easy Shedding, wear resistance can not meet our needs, which brings us great inconvenience

Method used

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  • High-strength wear-resistant closed steel frame and machining process thereof
  • High-strength wear-resistant closed steel frame and machining process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A process for processing a high-strength wear-resistant closed steel frame, comprising the following steps:

[0033] (1) The preparation steps of porous tungsten carbide are: take aminonitrile and mesoporous molecular sieve, stir and mix for 10 minutes, place in a 50°C water bath for constant temperature heating, vacuumize and constant temperature for 4 hours, centrifuge, vacuum dry, and transfer to argon after drying In the atmosphere, calcined at 530°C for 4 hours, acid etched for 18 hours after calcination, separated and dried to obtain material A;

[0034] Take material A, tungsten hexachloride and ethanol, stir and mix for 10 minutes, transfer to a nitrogen atmosphere after drying, and perform high-temperature calcination. During calcination, first raise the temperature to 680°C, and calcine at a constant temperature for 15 minutes, then raise the temperature to 4°C / min. Calcined at 940°C for 2.5 hours to obtain porous tungsten carbide.

[0035] (2) Take porous tu...

Embodiment 2

[0042] A process for processing a high-strength wear-resistant closed steel frame, comprising the following steps:

[0043] (1) The preparation steps of porous tungsten carbide are as follows: take aminonitrile and mesoporous molecular sieve, stir and mix for 15 minutes, place in a water bath at 52°C for constant temperature heating, vacuum and constant temperature treatment for 3.5 hours, centrifugal separation, vacuum drying, and transfer to argon after drying Calcined at 540°C for 3.5 hours in air atmosphere, acid etched for 19 hours after calcination, separated and dried to obtain material A;

[0044] Take material A, tungsten hexachloride and ethanol, stir and mix for 16 minutes, transfer to a nitrogen atmosphere after drying, and perform high-temperature calcination. During calcination, first raise the temperature to 685°C, and then calcine at a constant temperature for 13 minutes, then raise the temperature to Calcined at 945°C for 2.2 hours to obtain porous tungsten ca...

Embodiment 3

[0052] A process for processing a high-strength wear-resistant closed steel frame, comprising the following steps:

[0053] (1) The preparation steps of porous tungsten carbide are: take aminonitrile and mesoporous molecular sieve, stir and mix for 20 minutes, place in a water bath at 55°C for constant temperature heating, vacuumize and constant temperature for 3 hours, centrifuge, vacuum dry, and transfer to argon after drying Calcined at 550°C for 3 hours in the atmosphere, etched for 20 hours after calcination, separated and dried to obtain material A;

[0054] Take material A, tungsten hexachloride and ethanol, stir and mix for 20 minutes, transfer to a nitrogen atmosphere after drying, and perform high-temperature calcination. During calcination, first raise the temperature to 690°C, and calcine at a constant temperature for 10 minutes, then raise the temperature to 5°C / min. Calcined at 950°C for 2 hours to obtain porous tungsten carbide.

[0055] (2) Take porous tungste...

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Abstract

The invention discloses a high-strength wear-resistant closed steel frame and the a machining process thereof. The process includes the steps that during preparation, firstly, an alloy steel pipe fitting is subjected to surface laser cleaning, and a surface oxidation film of the alloy steel pipe fitting is removed by conducting laser cleaning on the surface of the alloy steel pipe fitting, so that the surface wettability of the alloy steel pipe fitting can be improved; in a subsequent laser cladding procedure, cladding liquid can be fully spread out, so that a subsequently-formed wear-resistant layer is more uniform and compact, has few pores and is more excellent in wear resistance; and meanwhile, a rough structure can be formed on the surface of alloy steel after laser cleaning, so that the surface roughness can be improved, the adhesive force of a thick laser cladding layer is further improved, and the comprehensive wear resistance of the alloy steel is improved. The machining process of the high-strength wear-resistant closed steel frame is reasonable in design and easy to operate, the wear-resisting layer is formed on the surface of the prepared alloy steel pipe fitting, a steel frame is obtained through splicing installation, the wear-resisting layer can effectively improve the wear-resisting performance and the comprehensive mechanical performance of the alloy steel frame, and the alloy steel frame can be suitable for multiple technical fields and has high practicability.

Description

technical field [0001] The invention relates to the technical field of steel processing, in particular to a high-strength wear-resistant closed steel frame and its processing technology. Background technique [0002] Steel frame generally refers to a structure composed of steel beams and steel columns that can bear vertical and horizontal loads, and is now widely used in industrial and civil buildings with long spans or high-rise or heavy loads; with the advancement and development of science and technology, steel is gradually In our daily life, the research on the strength, high temperature resistance, corrosion resistance and other properties of alloy steel has become a hot topic that we gradually pay attention to. [0003] Aiming at the wear resistance of steel profiles in the prior art, many related patents or documents have been disclosed, but the common method is to coat the surface of steel profiles with a wear-resistant coating, which has high cost and complicated pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10B22F9/04C23C18/50B08B7/00
CPCC23C24/103B22F9/04C23C18/50B08B7/0042B22F2009/043
Inventor 郁志强
Owner 常州市天河电器有限公司
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