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Adhesive bonding technique between layers of rubber hose

A rubber hose and process technology, applied in the field of interlayer bonding technology, can solve the problems of uneven glue concentration, difficulty in maintaining uniform concentration, uneven drying degree, etc., achieve good bonding effect, improve production inspection efficiency, and shorten production cycle effect

Inactive Publication Date: 2008-12-17
上海新上橡汽车胶管有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The parking time is affected by many factors, generally at least 8 hours, resulting in a longer production cycle
[0006] 2. The concentration of the glue is not uniform - the glue is a viscous liquid. During use, due to the volatilization of the solvent, it is difficult to maintain a uniform concentration
[0007] 3. The degree of drying is not uniform - the tube blanks are coated with glue and wound on the drum for drying. Under normal production conditions, multi-layer tube blanks are wound on the drum, so the drying degree of the outer and inner layer tube blanks is different. The bonding effect is very different

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The process of the invention is used for the production of automobile cooling water pipes. The rubber hose adopts the structure of knitted fiber reinforced layer. In the past, the process of coating glue could not be produced continuously. Now the process of the present invention is used instead. There is no pause between each process. After cooling, enter the knitting machine to knit the fiber-reinforced layer. The tube blank that has knitted the fiber-reinforced layer passes through a special spraying device to spray the prepared surface treatment agent evenly on the surface of the tube blank, and at the same time recover and remove the excess treatment agent.

[0018] The specific composition and proportioning ratio of the surface treatment agent described here is: benzene / toluene / solvent gasoline=2 / 1 / 2. The position of the spraying device is fixed, and the volatilization degree of the solvent is controlled by adjusting the speed of the production line, so as to real...

Embodiment 2

[0020] The process of the present invention is used for weaving oil pipes. Due to the production site and structure of this kind of rubber hose, it is required to be parked for different periods of time before being extruded and coated with the outer rubber layer. Therefore, its technical process is the same as that of the continuous method in Example 1. Different, although the braided tube blank can still directly enter the outer rubber layer extrusion coating process without parking after passing through the spraying device, but compared with the continuous method of Example 1, there are the following differences:

[0021] The spraying device is movable, and the distance between the spraying device and the extruder can be adjusted according to specific requirements, so as to control the effect of the treatment agent on the adhesive layer;

[0022] The composition and proportioning ratio of the treating agent used are: benzene / solvent gasoline=2 / 3.

[0023] Distance, in order...

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Abstract

An interlayer adhering technology for multi-layer rubber pipe features that after a reinforcing layer is spread on the internal rubber layer and before the external rubber layer is added, a particular surface treating agent is sprayed. The organic solvent chosen from benzene, toluene, ethyl acetate, solvent gasoline and their mixture, in which the rubber can be dissolved and swollen, is used as the primary component of said surface treating agent.

Description

technical field [0001] The invention relates to a rubber hose manufacturing process in the rubber industry, in particular to an interlayer bonding process in the production of a rubber hose with a reinforced layer. Background technique [0002] A multi-layer rubber hose with a reinforced layer is usually composed of an inner rubber layer, a reinforced layer and an outer rubber layer, and the reinforced layer mostly adopts a fiber or steel wire braided or wound structure. However, in the production process of this kind of rubber hose, since a reinforced layer composed of different materials is separated between the inner rubber layer and the outer rubber layer, the contact area of ​​the inner and outer rubber layers is reduced, so that air bubbles and delamination are easy to occur. and other quality issues. In order to solve the problem of interlayer adhesion in the production of this type of rubber hose, the traditional process is to lay a reinforcing layer outside the inn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C65/54B29L23/00B29K21/00
Inventor 郑涛张利斌
Owner 上海新上橡汽车胶管有限公司
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