A method for remanufacturing the inner wall of sleeve parts by induction cladding

A kind of sleeve and remanufacturing technology, applied in the direction of coating, metal material coating process, etc., can solve the problems of unable to solve the problem of remanufacturing and repairing waste parts, limited film thickness, low deposition efficiency, etc., to achieve energy saving and material saving. Remarkable environmental protection effect, narrow heat-affected zone and low roughness

Active Publication Date: 2018-06-05
北京睿曼科技有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently commonly used remanufacturing forming technologies such as laser cladding, thermal spraying, plasma welding, and surfacing welding are mainly aimed at remanufacturing and repairing damaged blanks on the outer surface. Enhanced treatment of new products, but due to the limited thickness of the film layer and low deposition efficiency, it cannot solve the problem of remanufacturing and repairing waste parts caused by the large size of the inner hole.

Method used

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  • A method for remanufacturing the inner wall of sleeve parts by induction cladding
  • A method for remanufacturing the inner wall of sleeve parts by induction cladding

Examples

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Effect test

Embodiment 1

[0025] The present invention is a method for remanufacturing the inner wall of bushing parts of heavy-duty crawler vehicles by induction cladding. In view of the serious wear of the inner wall parts and the unilateral dimension out-of-tolerance range reaches 05-0.7mm, the technical solution given is:

[0026] (1) Use acetone as the cleaning agent to perform ultrasonic cleaning on the parts to be treated to remove oil and other pollutants on the surface of the inner wall.

[0027] Grinding pretreatment is carried out on the surface of the inner wall by a grinder, and the size of the inner wall is Φ80.75mm.

[0028] (2) Mix rosin and turpentine at a mass ratio of 1:3 and heat to 90°C to make a binder. Mix the iron-based alloy powder and the binder according to the mass ratio of 10:1 and stir evenly to make a paste. With the help of a scraper and a clamping rotary tool, evenly apply the prepared paste powder / binder mixture on the surface of the inner wall of the part after step ...

Embodiment 2

[0034] The present invention is a method for remanufacturing the inner wall of bushing parts of heavy-duty crawler vehicles by induction cladding. Aiming at the moderate wear of the inner wall parts, the technical solution given is:

[0035] (1) Use acetone as the cleaning agent to perform ultrasonic cleaning on the parts to be treated to remove oil and other pollutants on the surface of the inner wall.

[0036] Grinding pretreatment is carried out on the surface of the inner wall by a grinder, and the size of the inner wall is obtained to be Φ80.55mm.

[0037] (2) Mix rosin and turpentine at a mass ratio of 1:3 and heat to 90°C to make a binder. Mix the iron-based alloy powder and the binder according to the mass ratio of 10:1 and stir evenly to make a paste. With the help of a scraper and a clamping rotary tool, evenly apply the prepared paste powder / binder mixture on the surface of the inner wall of the part after step (1), with a thickness of about 0.75mm. Put the parts ...

Embodiment 3

[0043] The present invention is a method for remanufacturing the inner wall of sleeve parts of heavy-duty crawler vehicles by induction cladding. Aiming at the mild wear of the inner wall parts, the technical solution given is:

[0044] (1) Use acetone as the cleaning agent to perform ultrasonic cleaning on the parts to be treated to remove oil and other pollutants on the surface of the inner wall.

[0045] Grinding pretreatment is carried out on the surface of the inner wall by a grinder, and the size of the inner wall is obtained to be Φ80.35mm.

[0046] (2) Mix rosin and turpentine at a mass ratio of 1:3 and heat to 90°C to make a binder. Mix the iron-based alloy powder and the binder according to the mass ratio of 10:1 and stir evenly to make a paste. With the help of a scraper and a clamping rotary tool, evenly apply the prepared paste powder / binder mixture on the surface of the inner wall of the part after step (1), with a thickness of about 0.5 mm. Put the parts into ...

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Abstract

The invention relates to the technical field of remanufacture and discloses an induction-cladding sleeve part inner wall remanufacturing method. The induction-cladding sleeve part inner wall remanufacturing method comprises the following steps of (a) cleaning and preprocessing the surfaces of the inner walls of sleeve parts, (b) pre-arranging iron-base alloy powder coatings on the surfaces of the inner walls, (c) preparing high-frequency induction-cladding coatings and (d) machining the induction-cladding coatings. The induction-cladding sleeve part inner wall remanufacturing method has the advantages that good alloy bonding is formed between the prepared induction-cladding remanufacturing coatings and part base bodies; a heat affected zone in the remanufacturing machining process is narrow, and no heat damage is produced to the base bodies. nickel base, iron base, cobalt base or light alloy coating materials can be selected to perform remanufacturing repair according to the actual service conditions, failure modes and material characteristics of the inner walls of the parts; high-frequency induction heating is utilized to provide a fusion-covering heat source for induction-cladding sleeve part inner wall remanufacturing, no wastewater, waste gas and waste residue causing pollution is produced in the remanufacturing process, and no harm caused by noise, dust, radiation, strong light and the like is brought to an operator.

Description

technical field [0001] The invention relates to a method for remanufacturing the inner wall of cylindrical parts by induction cladding, which belongs to the technical field of remanufacturing. The invention can be applied to bearing housings and tooth sleeves of heavy-duty crawler vehicle gearboxes, gear transmission boxes and other components due to wear and tear. , Connecting gears and other sleeve parts for remanufacturing and repairing. Background technique [0002] Heavy-duty tracked vehicles such as mining machinery, construction machinery, special equipment, and military weaponry have harsh service conditions and harsh working environments. Problems such as impact deformation, contact fatigue and abrasive wear, especially the sealing system due to external dust, sand and other impurities, lead to serious wear on the inner wall surface of parts such as seat holes and sleeves, and even a large number of failures and scraps due to excessive size. [0003] Remanufacturin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C24/10C22C38/54C22C38/44
Inventor 张伟于鹤龙汪勇赵锐吉小超张攀张梦清
Owner 北京睿曼科技有限公司
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