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Rectangle thin wall pipe material and method for manufacturing same

A technology of thin-walled pipes and rectangles, which is applied in the direction of pipes, rigid pipes, pipes/pipe joints/pipe fittings, etc., can solve the problems of difficult molding process and practical application, and achieve the effect of high cost performance, thin wall, light weight and high strength

Inactive Publication Date: 2011-02-16
核工业第八研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, thin-walled epoxy composite pipes with a wall thickness of less than 5mm have not been used in practical applications due to the difficulty of their forming process.

Method used

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  • Rectangle thin wall pipe material and method for manufacturing same
  • Rectangle thin wall pipe material and method for manufacturing same

Examples

Experimental program
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Effect test

Embodiment 1

[0029] A method for manufacturing a rectangular thin-walled pipe, the method comprising the following steps:

[0030] (1) Prepare raw materials according to the following composition:

[0031] 100 parts by weight of epoxy resin

[0032] Curing agent (modified methyl hexahydrophthalic anhydride) 90 parts by weight

[0033] Accelerator (2-methylimidazole) 1.2 parts by weight

[0034] Release agent (manganese wax) 2.0 parts by weight

[0035] Put the above raw materials into the resin glue tank for mixing and set aside;

[0036] (2) racking: the glass fiber is loaded onto the creel, and the volume share of the glass fiber accounting for the total material is 75%;

[0037] (3) Pultrusion: Glass fiber enters the resin glue tank filled with thermosetting resin, curing agent, accelerator and mold release agent through the yarn drying channel or directly through the yarn guide hole, and then enters the belt with segmental heating and temperature through the yarn dividing plate. T...

Embodiment 2

[0040] A method for manufacturing a rectangular thin-walled pipe, the method comprising the following steps:

[0041] (1) Prepare raw materials according to the following composition:

[0042] Vinyl resin 90 parts by weight

[0043] Curing agent (modified methyl tetrahydrophthalic anhydride) 80 parts by weight

[0044] Accelerator (2,4-dimethylimidazole) 0.8 parts by weight

[0045] Release agent (zinc stearate) 0.5 parts by weight

[0046] Put the above raw materials into the resin glue tank for mixing and set aside;

[0047] (2) Shelving: the continuous glass fiber is loaded onto the creel, and the volume share of the glass fiber accounting for the total material is 65%;

[0048] (3) Pultrusion: Glass fiber enters the resin glue tank filled with thermosetting resin, curing agent, accelerator and mold release agent through the yarn drying channel or directly through the yarn guide hole, and then enters the belt with segmental heating and temperature through the yarn divid...

Embodiment 3

[0051] A method for manufacturing a rectangular thin-walled pipe, the method comprising the following steps:

[0052] (1) Prepare raw materials according to the following composition:

[0053] 120 parts by weight of unsaturated polyester resin;

[0054] 100 parts by weight of curing agent (modified methyl hexahydrophthalic anhydride);

[0055] Accelerator (2-ethyl-4-methylimidazole) 1.0 parts by weight;

[0056] Release agent (calcium stearate) 1.0 parts by weight;

[0057] Put the above raw materials into the resin glue tank for mixing and set aside;

[0058] (2) racking: the non-alkali continuous glass fiber is loaded onto the creel, and the volume share of the glass fiber accounting for the total material is 82%;

[0059] (3) Pultrusion: Glass fiber enters the resin glue tank filled with thermosetting resin, curing agent, accelerator and mold release agent through the yarn drying channel or directly through the yarn guide hole, and then enters the belt with segmental he...

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Abstract

The invention relates to a rectangle thin wall tubular product and a manufacturing method thereof; the rectangle thin wall tubular product is fibrous reinforcement thermosetting composite material which comprises the components: 90-120 parts by weight of thermosetting resin, 80-100 parts by weight of solidifying agent, 0.8-1.2 parts by weight of accelerant, less than or equal to 2.0 parts by weight of mold lubricant and 65-82% (volume) of glass fiber. Compared with the prior art, the rectangle thin wall tubular product has the advantages of high intensity, good insulating property, little dielectric loss, light weight of the thin wall, good combination with other epoxy systems, non-toxicity and environmental protection, and can be applied to heat dissipation of the medium of a dry-type transformer; meanwhile, the invention adopts reasonable manufacturing method and technique, is low in energy consumption, and also has the advantages of little equipment investment, low cost, high cost performance, etc.

Description

technical field [0001] The invention relates to epoxy composite material products, in particular to a rectangular thin-walled pipe and a manufacturing method thereof. Background technique [0002] Epoxy composite pultruded products are widely used in the field of electrical engineering due to their low curing shrinkage and superior insulation and mechanical properties. However, epoxy composite thin-walled tubes with a wall thickness of less than 5mm have not been used in practical applications due to the difficulty in their forming process. Contents of the invention [0003] The object of the present invention is to provide a rectangular thin-walled pipe with high strength and good insulation performance and a manufacturing method thereof in order to overcome the above-mentioned defects in the prior art. [0004] The purpose of the present invention can be achieved through the following technical solutions: a rectangular thin-walled pipe, characterized in that the rectang...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L9/128
Inventor 高建军燕展陆宏光徐哲军杭颂
Owner 核工业第八研究所
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