Self-lubricating gasket bonding method

Abstract

The invention provides a self-lubricating gasket bonding method. The self-lubricating gasket bonding method comprises the following steps of: step 1. removing a PTFE (polytetrafluoroethylene) non-stick film on one side of a double-sided structural adhesive of glass fiber prepreg; step 2. bonding the side of the double-sided structural adhesive of the glass fiber prepreg without the PTFE non-stickfilm to a bonding surface of a gasket to obtain a bonding material; step 3. performing hot pressing on the bonding material; step 4. removing a PTFE non-stick film on the other side of the double-sided structural adhesive of the glass fiber prepreg in the hot-pressed bonding material, bonding the bonding material to the inner surface of a bearing outer ring; and step 5. transferring the bonded bearing outer ring to a drying box for precuring. A binding agent of a bonding layer formed by the bonding method is evenly distributed everywhere; no large amount of binding agent overflows on both sides of the bearing; the inner hole of the cured outer ring has relatively good dimensional accuracy; and in the peeling strength test process of the gasket, the peeling strength everywhere has little fluctuation, and the consistency is good.

Description

technical field [0001] The invention relates to the technical field of joint bearings, in particular to a bonding method of a self-lubricating liner. Background technique [0002] The self-lubricating joint 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 to lubricate. The liner is a semi-cured composite product made of fabric-reinforced resin prepreg. [0003] For example, the patent document CN 107882871A discloses a non-round fiber pad bearing. Usually, the phenolic resin in the pad has poor metal bonding ability and cannot be well bonded to the metal base material of the outer steel ring of the bearing. It needs to be bonded and cured to the metal base material of the bearing outer steel ring by special adhesive. The disadvantage of this bonding process is that the adhesive is applied manually with a brush, the adhesive is applied unevenly, some areas are coated more, and some areas are co...

AI Technical Summary

Problems solved by technology

[0003] For example, the patent document CN 107882871A discloses a non-round fiber pad bearing. Usually, the phenolic resin in the pad has poor metal bonding ability and cannot be well bonded to the metal base material of the outer steel ring of the bearing. It needs to be bonded and cured to the metal base material of the bearing outer steel ring by special adhesive

The disadvantage of this bonding process is that the adhesive is applied manually with a brush, the adhesive is applied unevenly, some areas are coated more, and some areas are coated less, and it can only be judged by the naked eye. Uniformity; the amount of coating cannot be quantitatively controlled. To a large extent, it can only rely on the experience of operators, which cannot meet the requirements of current industrial scale production

[0004] The local accumulation of adhesive is also one of the reasons for the hard point of the liner, which leads to poor operation of the bearing, stagnation, and even jamming.

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