Processing technology for lubricating wear-resistant coating of bearing bush of engine

A technology for wear-resistant coatings and engine shafts, which is applied in coatings, epoxy resin coatings, and devices for coating liquid on the surface, etc. It can solve the problem that the coating of bearing bushes cannot meet the requirements of wear resistance and service life, and cannot meet the requirements of The use requirements of lubricity and wear resistance, the formulation design is not easy to achieve and other problems, to achieve the effect of improving operation reliability and long service life, reliability and long service life, and low curing time

Active Publication Date: 2019-01-22
在邦润滑材料(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] With the development of society and the higher and higher requirements for engine power and speed, the performance requirements for engine bearings, bushings and other wear-resistant parts are getting higher and higher, and the requirements for the service life of engine bearings are also greatly improved. The above-mentioned existing patents CN103710116A, CN104120001A and CN103216530A disclosed bearing coating can no longer meet the requirements of wear resistance and service life
For example, the patent CN103710116A uses oil film lubrication, which is a supplement to the original lubrication defects. The main component of the lubrication is lubricating oil, which cannot achieve self-lubrication; the patent CN104120001A uses a lubricant containing molybdenum disulfide to greatly improve the lubrication properties, but Its wear resistance is poor. Although lubrication and wear resistance are two concepts, they always exist together. The quality of lubrication affects the effect of wear resistance, but it cannot determine the result of wear resistance. Therefore, it needs to be added to its formula design. Appropriate wear-resistant materials to truly achieve the ideal effect of both lubrication and wear resistance
And although the patent CN103216530A lists all the components that may be used, and occasionally also states the proportions, it is not easy to realize in the actual formula design, and the antifriction coating disclosed by it has gradually been unable to meet the requirements of engine bearing bushes and bushings. Use requirements for lubricity and wear resistance of wear-resistant parts

Method used

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  • Processing technology for lubricating wear-resistant coating of bearing bush of engine
  • Processing technology for lubricating wear-resistant coating of bearing bush of engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Embodiment 1 The processing of engine bearing lubricating wear-resistant coating specifically comprises the following steps:

[0049] (1) Pretreatment: Clean the surface of the bearing bush, and then put it in the passivation tank for passivation after sandblasting, and clean and dry the passivated bearing bush; the details are as follows:

[0050] (11) Fill the degreasing tank in the ultrasonic cleaning production line with water in advance, add cleaning agent in proportion, and start the circulating decontamination system;

[0051] (12) Put the bearing bush in the ultrasonic degreasing tank for 20 minutes, drench off the residual liquid, and enter the rough washing tank;

[0052] (13) The bearing bush is ultrasonically cleaned in the rough washing tank for 10 minutes, the water is drained, and it enters the washing tank;

[0053] (14) The bearing bush is ultrasonically cleaned in the water washing tank for 10 minutes, the water is drained, and it enters the drying bo...

Embodiment 2

[0063] Embodiment 2 The processing of engine bearing lubricating wear-resistant coating specifically comprises the following steps:

[0064] (1) Pretreatment: Clean the surface of the bearing bush, and then put it in the passivation tank for passivation after sandblasting, and clean and dry the passivated bearing bush; the details are as follows:

[0065] (11) Fill the degreasing tank in the ultrasonic cleaning production line with water in advance, add cleaning agent in proportion, and start the circulating decontamination system;

[0066] (12) Put the bearing bush in the ultrasonic degreasing tank for 20 minutes, drench off the residual liquid, and enter the rough washing tank;

[0067] (13) The bearing bush is ultrasonically cleaned in the rough washing tank for 10 minutes, the water is drained, and it enters the washing tank;

[0068] (14) The bearing bush is ultrasonically cleaned in the water washing tank for 10 minutes, the water is drained, and it enters the drying bo...

Embodiment 3

[0078] Embodiment 3 The processing of engine bearing lubricating wear-resistant coating specifically includes the following steps:

[0079] (1) Pretreatment: Clean the surface of the bearing bush, and then put it in the passivation tank for passivation after sandblasting, and clean and dry the passivated bearing bush; the details are as follows:

[0080] (11) Fill the degreasing tank in the ultrasonic cleaning production line with water in advance, add cleaning agent in proportion, and start the circulating decontamination system;

[0081] (12) Put the bearing bush in the ultrasonic degreasing tank for 20 minutes, drench off the residual liquid, and enter the rough washing tank;

[0082] (13) The bearing bush is ultrasonically cleaned in the rough washing tank for 10 minutes, the water is drained, and it enters the washing tank;

[0083] (14) The bearing bush is ultrasonically cleaned in the water washing tank for 10 minutes, the water is drained, and it enters the drying box...

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Abstract

The invention discloses a processing technology for a lubricating wear-resistant coating of a bearing bush of an engine. The processing technology comprises the steps of (1) pretreatment, wherein thesurface of the bearing bush is cleaned, after sand blasting treatment, the bearing bush is placed in a passivation pond for passivation treatment, and after passivation, the bearing bush is cleaned and dried; (2) pre-heating treatment, wherein after pretreatment, the bearing bush is placed in a drying oven and hated to 40-60 DEG C, and the temperature is preserved for 10-30 min; (3) spraying treatment, wherein the bearing bush is taken from the drying oven, and thermal spraying is conducted on the surface of the bearing bush by adopting the wear-resistant lubricating coating; (4) solidifying treatment, wherein the bearing bush is placed in the drying oven and heated to 120-160 DEG C for solidifying, and the solidifying time is 20-30 min; (5) packaging checking. According to the processingtechnology, a spraying mode is adopted for replacing a bearing bush electroplating mode, the environmentally friendly problem is solved, and the production cost is reduced; the processed lubricating wear-resistant coating of the bearing bush of the engine greatly improves the running reliability of the bearing bush of the engine, and the service life is long.

Description

technical field [0001] The invention relates to the technical field of engine bearing coatings, in particular to a processing technology for lubricating and wear-resistant coatings of engine bearings. Background technique [0002] The engine bearing bush is the part where the sliding bearing and the journal are in contact. It is shaped as a tile-like semi-cylindrical surface and is very smooth. It is generally made of bronze, alloy and steel-backed composite copper or aluminum. The bearing bush and the journal adopt a clearance fit or intermittent contact, and generally do not rotate with the shaft. The traditional bearing pad is coated with a layer of protective layer on the inner surface of the bearing pad by electroplating process, which plays the role of lubrication, wear resistance, anti-corrosion and aesthetics. For example, in order to meet the operating conditions of the engine bearing pad, a layer of lubricious Lubricating and wear-resistant coatings with wear resi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/14B05D3/02C09D181/06C09D127/12C09D163/00C09D7/61C09D7/65
CPCB05D3/0236B05D3/0272B05D7/14B05D2301/00B05D2504/00B05D2518/00C08K2003/3009C08L2205/02C08L2205/035C09D181/06C09D7/61C09D7/65C08L27/12C08L63/00C08L27/18C08K13/02C08K3/30C08K3/042C08K3/041
Inventor 史绍波彭俊锋
Owner 在邦润滑材料(上海)有限公司
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