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Curing method of phenolic composite material self-lubricating bearing

A technology of self-lubricating bearings and composite materials, which is applied to other household appliances, household appliances, household components, etc., can solve the problems of shortening the service life of bearings, shedding of the surface of the gasket, and accelerating the wear of the gasket, so as to improve performance and service life , Exclude air bubbles, improve the effect of compactness

Inactive Publication Date: 2017-08-22
上海市轴承技术研究所有限公司
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Problems solved by technology

On the one hand, the surface layer of the self-lubricating bearing will fall off during use, which will accelerate the wear of the liner and shorten the service life of the bearing; Fault

Method used

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  • Curing method of phenolic composite material self-lubricating bearing

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Embodiment 1

[0017] This embodiment relates to a curing method for a phenolic composite material self-lubricating bearing, such as figure 1 shown, including the following steps:

[0018] 1. Prepare trays, ovens, phenolic composite material liners, mandrels, and outer steel rings of bearings;

[0019] 2. Paste the gasket into the outer steel ring of the bearing with phenolic sealant, and cure at room temperature;

[0020] 3. Put the gasketed outer steel ring of the bearing on a mandrel of appropriate size, put it in a tray, transfer it to a vacuum drying oven, and use the method of temperature programming to increase the temperature from room temperature at a rate of 6-8°C / min. , slowly rise to 160-180°C, keep for 2h, then drop to 130-150°C at a cooling rate of 1-2°C / min, keep for 1h, then cool to room temperature in a natural state to complete the curing treatment.

[0021] This embodiment adopts a vacuum drying and curing process. Through thermogravimetric analysis, compared with the tr...

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Abstract

The invention provides a curing method for a self-lubricating bearing made of phenolic composite material, which comprises the following steps: S1: pasting a liner on the inner side of the outer steel ring of the bearing; S2: piercing a mandrel on the inner side of the liner; S3: Carry out heat preservation at 160-180°C and 130-150°C in sequence to complete curing. Compared with the prior art, the present invention has the following beneficial effects: in the curing process of the phenolic composite material self-lubricating bearing liner, vacuum drying equipment is used to replace the traditional electric blast drying oven for curing treatment. It can effectively eliminate the bubbles generated during the curing process of the gasket, improve the compactness of the gasket, and make the inner and outer surfaces of the gasket more fully cured, thereby improving the performance and service life of the gasket.

Description

technical field [0001] The invention relates to a curing method for a phenolic composite material self-lubricating bearing, belonging to the technical field of self-lubricating joint bearings. Background technique [0002] The phenolic composite material self-lubricating bearing is composed of an outer steel ring, an inner steel ring, and a gasket pasted on the inner surface of the outer steel ring for lubrication. Wherein the liner is composed of fiber interwoven fabric woven by one or more kinds of fibers, and phenolic resin impregnated into the fabric in order to improve the strength of the fabric. During the curing process of the phenolic composite material self-lubricating bearing, the binder phenolic resin will generate a large amount of steam due to dehydration and condensation, and then form bubbles. If a large number of air bubbles stay inside the gasket or gather on the surface, it will not only affect the compactness and mechanical properties of the self-lubricat...

Claims

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Application Information

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IPC IPC(8): B29C35/02B29L31/04
CPCB29C35/02B29L2031/04
Inventor 汪伟黄雄荣朱淋淋
Owner 上海市轴承技术研究所有限公司
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