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Steel belt corrugated pipe and preparation method thereof

A corrugated pipe and steel belt technology, applied in the field of pipelines, can solve the problems of poor performance of steel belt corrugated pipes, poor heat resistance and rigidity, etc., and achieve the effects of reducing viscosity, improving processing performance, and being easy to implement.

Inactive Publication Date: 2019-07-26
四川兰晨管业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: although polyvinyl chloride has high mechanical properties, its properties such as heat resistance and rigidity are relatively poor, and the performance of the steel strip bellows formed by winding and compounding steel strips and polyvinyl chloride materials is poor.

Method used

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  • Steel belt corrugated pipe and preparation method thereof
  • Steel belt corrugated pipe and preparation method thereof
  • Steel belt corrugated pipe and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A method for preparing a steel strip bellows comprises the following steps:

[0046] Mix and stir 35.56kg polyvinyl chloride and 44.44kg polyethylene evenly to obtain a blend of polyvinyl chloride and polyethylene, then add 7kg chlorinated polyethylene and 0.8kg dicumyl peroxide, mix and stir evenly to obtain a mixture .

[0047] Put the mixture, 75g of clove essential oil, 25g of vitamin E, 0.8kg of dioctyl phthalate, 0.2kg of glycerin, 5kg of glass fiber and 0.5kg of hydrotalcite stabilizer into the mixer and stir evenly, then into the kneader , melted at 140°C for 15 minutes, and finally sent to a twin-screw extruder for extrusion to obtain a melt.

[0048] The galvanized steel strip is uncoiled, flattened, cleaned with water to remove dust and other impurities on the surface, dried, and the steel strip 3 is textured and coated with plastic, and then the adhesive resin is evenly coated on the galvanized steel strip surface.

[0049] The molten material is bonded a...

Embodiment 2

[0051] A method for preparing a steel strip bellows comprises the following steps:

[0052] Mix and stir 46.36kg of polyvinyl chloride and 38.64kg of polyethylene to obtain a blend of polyvinyl chloride and polyethylene, then add 9kg of chlorinated polyethylene and 1kg of dicumyl peroxide, mix and stir to obtain a mixture.

[0053] Put the mixture, 250g of clove essential oil, 50g of vitamin E, 1.678kg of dioctyl phthalate, 0.33kg of glycerin, 6kg of glass fiber and 1kg of hydrotalcite stabilizer into the mixer and stir evenly, then into the kneader, It was melted at 160°C for 20 minutes, and finally sent to a twin-screw extruder for extrusion to obtain a melt.

[0054] The galvanized steel strip is uncoiled, flattened, cleaned with water to remove dust and other impurities on the surface, dried, and the steel strip 3 is textured and coated with plastic, and then the adhesive resin is evenly coated on the galvanized steel strip surface.

[0055] The molten material is bonded...

Embodiment 3

[0057] A method for preparing a steel strip bellows comprises the following steps:

[0058] 46.5kg of polyvinyl chloride and 46.5kg of polyethylene were mixed and stirred evenly to obtain a blend of polyvinyl chloride and polyethylene, and then 11kg of chlorinated polyethylene and 1.3kg of dicumyl peroxide were added, mixed and stirred evenly to obtain a mixture .

[0059] The mixture, 400g clove essential oil, 100g vitamin E, 875g dioctyl phthalate, 125g glycerin, 8kg glass fiber and 1.7kg hydrotalcite stabilizer are sent into the mixer and stirred evenly, then sent into the kneader, It was melted at 180°C for 25 minutes, and finally sent to a twin-screw extruder for extrusion to obtain a melt.

[0060] The galvanized steel strip is uncoiled, flattened, cleaned with water to remove dust and other impurities on the surface, dried, and the steel strip 3 is textured and coated with plastic, and then the adhesive resin is evenly coated on the galvanized steel strip surface.

...

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Abstract

The invention discloses a steel belt corrugated pipe and a preparation method thereof. The steel belt corrugated pipe comprises an inner layer, a steel belt and an outer layer, the steel belt is positioned between the inner layer and the outer layer, and each of the inner layer and the outer layer is prepared from, by weight, 80-93 parts of polyvinyl chloride and polyethylene blend, 7-11 parts ofsolubilizer, 0.1-0.5 part of antioxidant, 1-3 parts of plasticizer, 5-8 parts of reinforcing material and 0.5-1.2 parts of stabilizer. The steel belt corrugated pipe has the advantage of excellent performance. The preparation method includes: mixing raw materials, and melting at 140-180 DEG C for 15-25min to obtain melt; treating the steel belt: uniformly coating the surface of the steel belt withadhesive resin; utilizing hot melt connecting technology to complete adhesive compositing of the melt and the steel belt with the adhesive resin, and cooling for shaping to obtain the steel belt corrugated pipe. The preparation method has the advantages of being simple in preparation step, convenient in operation, easy in implementation, convenient for mass production and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of pipelines, more specifically, it relates to a steel strip corrugated pipe and a preparation method thereof. Background technique [0002] Steel belt corrugated pipe generally refers to belt-reinforced spiral corrugated pipe, which uses U-shaped steel belt composite PE material, so that the ring stiffness of the pipe can be greatly improved without increasing the cost, and the strength of the pipe is greatly improved compared with the winding pipe and the carat pipe under the same weight. . It can solve a series of problems such as heavy loads, and the advantages of large-diameter pipes are more obvious. The diameter of the produced pipes ranges from DN300mm to DN2400mm, and the ring stiffness is kept above 8KN / m2, which is lighter and stronger than cement pipes and other plastic pipes. Widely used in drainage and sewage pipes of municipal engineering, construction engineering, water conservancy projects,...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L27/06C08L23/28C08L91/00C08K5/14C08K5/12C08K5/053C08K7/14C08K3/26C08K13/04B32B15/085B32B15/18B32B27/32B32B1/08F16L9/14F16L11/08F16L57/02F16L57/04F16L57/06F16L58/04F16L58/10
CPCB32B1/08B32B15/085B32B15/18B32B27/32B32B2597/00C08L23/06C08L27/06C08L2205/035C08L2205/08F16L9/14F16L11/08F16L57/02F16L57/04F16L57/06F16L58/04F16L58/10C08L23/286C08L91/00C08K5/14C08K5/12C08K5/053C08K7/14C08K3/26C08K13/04
Inventor 冯平赵泽旭
Owner 四川兰晨管业有限公司
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