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Method for manufacturing glued steel belt for steel-belt-reinforced plastic composite pipe

A technology of reinforced plastic and rubber-coated steel belt, which is applied in the field of steel-belt-reinforced plastic composite pipe rubber-coated steel belt manufacturing. It can solve problems such as difficult contact, insufficient roughness, and hot-melt adhesive can't be riveted, etc., to achieve roughness improvement. , Improve the bonding effect, and the effect of long service life

Active Publication Date: 2015-07-15
SICHUAN KINGFA TECH DEV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First of all, the surface of the steel strip is smooth and flat, and the roughness is not enough, the hot melt adhesive cannot form riveting with the steel strip surface; secondly, the hot melt adhesive does not apply external pressure in the process of coating the steel strip, and it is difficult to fully contact the steel surface

Method used

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  • Method for manufacturing glued steel belt for steel-belt-reinforced plastic composite pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The manufacturing method includes the following steps in sequence:

[0019] 1) Clean the grease and dirt on the surface of the steel strip with detergent;

[0020] 2) Treat the surface of the steel strip with a sandblasting machine to form a large number of pits on the smooth steel strip surface;

[0021] 3) Use a set of brush rollers to remove dust and abrasives on the surface of the steel strip;

[0022] 4) The steel strip is heated rapidly by means of electromagnetic induction heating, and the temperature is 160°C to 180°C;

[0023] 5) The steel strip is coated with hot melt adhesive through the extruder;

[0024] 6) The steel strip coated with hot melt adhesive passes between a pair of rubber pressure rollers, and the pressure roller applies pressure perpendicular to the surface of the steel strip to the hot melt adhesive;

[0025] 7) Cool the rubberized steel strip to below 60°C with water, and wind it up.

Embodiment 2

[0027] The manufacturing method includes the following steps in sequence:

[0028] 1) Clean the grease and dirt on the surface of the steel strip with detergent;

[0029] 2) Rapidly heat the steel strip to 100℃~150℃ by means of electromagnetic induction heating;

[0030] 3) Treat the surface of the steel strip with a shot blasting machine to form a large number of pits on the surface of the smooth steel strip;

[0031] 4) Use compressed air to clean the dust and abrasives attached to the surface of the steel strip;

[0032] 5) The steel strip is rapidly heated to 180°C to 200°C by means of electromagnetic induction heating;

[0033] 6) The steel strip is coated with hot melt adhesive through the extruder;

[0034] 7) The steel strip coated with hot melt adhesive passes between three pairs of aluminum alloy pressure rollers, and the pressure rollers exert pressure perpendicular to the surface of the steel strip on the hot melt adhesive;

[0035] 8) Cool the rubberized steel...

Embodiment 3

[0037] The manufacturing method includes the following steps in sequence:

[0038] 1) Clean the grease and dirt on the surface of the steel strip with detergent;

[0039] 2) Rapidly heat the steel strip to 150°C to 200°C by means of electric heating;

[0040] 3) Treat the surface of the steel strip with a fluffing machine, so that a large number of burrs are formed on the surface of the smooth steel strip;

[0041] 4) Use compressed air to remove dust and residue attached to the surface of the steel strip;

[0042] 5) Rapidly heat the steel strip to 230°C to 250°C by means of electromagnetic induction heating;

[0043] 6) The steel strip is sprayed with polyolefin bonding resin powder by spraying equipment;

[0044] 7) The steel strip coated with hot melt adhesive passes sequentially through a set of stainless steel pressure rollers that are staggered up and down, and each pressure roller exerts a pressure perpendicular to the surface of the steel strip on the polyolefin ad...

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Abstract

The invention discloses a method for manufacturing a glued steel belt for a steel-belt-reinforced plastic composite pipe. The method comprises the following steps of: a, treating surface: treating the surface of a steel belt so that pits or burs are formed on the surface of a smooth steel belt; b, coating hot melt glue: extruding and coating or spraying and coating the hot melt glue on the heated steel belt; and c, rolling and pressing: enabling the steel belt after coating the hot melt glue to pass through an interval between adjacent press rollers, wherein the press rollers apply a pressure vertical to the surface of the steel belt to the hot melt glue. According to the method for manufacturing the glued steel belt for the steel-belt-reinforced plastic composite pipe, disclosed by the invention, after the manufactured steel belt is subjected to the surface treatment, the roughness of the surface of the steel belt is improved, the adhesion surface of the surface of the steel belt is increased, the hot melt glue can be riveted with the surface of the steel belt so that the surface of the steel belt effectively resists corrosion of outside water, and the reliability of the steel belt is improved; in addition, when the glued steel belt is subjected to a rolling and pressing treatment, the hole melt glue and the steel surface are combined more compactly, an adhesion effect is improved and the service life of the glued steel belt is long.

Description

technical field [0001] The invention relates to a method for manufacturing a rubberized steel strip for a steel strip reinforced plastic composite pipe. Background technique [0002] Steel belt reinforced plastic composite pipe has the advantages of light weight, high ring rigidity, corrosion resistance, etc., and it is more and more widely used in municipal drainage and sewage pipelines. In steel belt reinforced plastic composite pipes, the bonding strength between steel and plastic and the heat resistance, water resistance, weather resistance, and alternating stress resistance of the adhesive layer directly affect the overall mechanical properties and service life of the pipe. In the prior art, the surface of the steel strip is coated with hot melt adhesive in an extruder to produce a steel strip reinforced plastic composite pipe, and the steel strip and polyethylene are bonded by the hot melt adhesive. [0003] Patent 200410076972.7 discloses a manufacturing method of pl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C47/02B29C43/22B29C43/46B29B11/00
Inventor 陈锬郑明嘉何浏炜胡兵郭美福李建中杨志骅雷小均苏俊业
Owner SICHUAN KINGFA TECH DEV
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