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Production method of railway box wagon heat-isolating layer

A technology for a railway boxcar and a production method, which is applied to railway car bodies, railway car body parts, layered products, etc., can solve the problems of reducing the load and volume of trains, increasing the self-weight of trains, and failing to meet the requirements of trains, and achieves thermal insulation effects. Good, light weight, small footprint effect

Inactive Publication Date: 2008-04-23
锦州希尔达汽车零部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem of the railway box car with this structure is that the weight of the whole box car is heavy due to the use of bamboo boards as the heat insulation layer. requirements, while reducing the load and volume of the train
In addition, the bolts on the steel pendant are also easy to scratch the goods in the car body

Method used

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  • Production method of railway box wagon heat-isolating layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] The insulation layer of the railway box car is composed of 100 parts of raw epoxy resin (such as: E-51, E-618 and other models) and 85 parts of epoxy curing agent (such as: 115, 125, 140 and other models) according to the ratio of parts by weight. , 36 parts of industrial grade alcohol (more than 95%), 35 parts of short fiber (commonly known as fluff or plush), 32 parts of thickening powder (such as polyphenyl powder, perlite and other light heat insulation powder), 25 parts of color masterbatch and The foaming agent is composed of 0.8 parts. The short fiber can be nylon 66 or nylon 6, the thickness is 1.5-3.0D, and the length is 0.3-0.6mm. The fineness of the thickening powder is 200-1000 mesh. The foaming agent is composed of aluminum powder and saturated sodium hydroxide solution, and the weight-number ratio of aluminum powder and saturated sodium hydroxide solution is 2:1 or 1.5:1 or 1:1, and the fineness of aluminum powder is 200-1000 mesh .

Embodiment 2

[0010] The heat insulation layer of the railway box car is composed of 140 parts of raw epoxy resin (such as: E-51, E-618 and other models) and 60 parts of epoxy curing agent (such as: 115, 125, 140 and other models) according to the ratio of parts by weight. , 50 parts of industrial grade alcohol (more than 95%), 24 parts of short fiber (commonly known as fluff or plush), 45 parts of thickening powder (such as polyphenyl powder, perlite and other light heat insulation powder), 16 parts of color masterbatch and The foaming agent consists of 1.6 parts, and the type of the short fiber is nylon 66 or nylon 6, the thickness is 1.5-3.0D, and the length is 0.3-0.6mm. The fineness of the thickening powder is 200-1000 mesh, and the foaming agent can be aluminum powder and saturated sodium hydroxide solution, and the ratio of parts by weight of aluminum powder and saturated sodium hydroxide solution is 2:1 or 1.6:1 or 1:1, the fineness of aluminum powder is 200-1000 mesh.

Embodiment 3

[0012] The heat insulation layer of the railway box car is composed of 120 parts of raw epoxy resin (such as: E-51, E-618 and other models) and 73 parts of epoxy curing agent (such as: 115, 125, 140 and other models) according to the ratio of parts by weight. , 42 parts of industrial grade alcohol (above 95%), 30 parts of short fiber, 39 parts of thickening powder (such as polyphenyl powder, perlite and other light heat insulation powder), 20 parts of color masterbatch and 1.2 parts of foaming agent, The type of the short fiber is nylon 66 or nylon 6, the thickness is 1.5-3.0D, and the length is 0.3-0.6mm. The fineness of the thickening powder is 200-1000 mesh, the foaming agent is aluminum powder and saturated sodium hydroxide solution, and the ratio of parts by weight of aluminum powder and saturated sodium hydroxide solution is 2:1 or 1.5:1 or 1 : 1, the fineness of aluminum powder is 200-1000 mesh.

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Abstract

This is a kind of railway boxcar thermal insulation layer, which comprises epoxy resin 100 - 140 shares, epoxy firming agent 60 - 85, alcohol 36 - 50, short fibre 24 - 35, thickening powder 32 - 45, master batch pigment 16 - 25 shares and vesicant 0.8 - 1.6 shares according to weight shares. Its producing method is that mix epoxy resin, alcohol, short fibre and thickening powder, then add epoxy firming agent and vesicant, lay them still after prepared; pour mixed materials into hopper, smear them on the inner surface of the railway boxcar body using pressure gun method; drying, haul the train body first time smeared into drying room, and gradually increase temperature to 60 - 70 Deg. C in 20 - 30 minutes, then continuously heat it for 40 - 60 minutes; second time smear, smear for the second time when the train body is cooled to room temperature, smear the inner surface of the train body for 5 - 8 times, then drying and clean. It has good heat insulation effect, light weight, small usage space, fire retarding and anticorrosion functions and long service life.

Description

technical field [0001] In particular, the invention relates to a production method for a heat insulation layer of a railway box car. Background technique [0002] The railway boxcar is a means of transportation for transporting fruits, vegetables and other items. The existing railway boxcar body is made of a boxcar base made of thin steel plates, a painted bamboo board and used to fix the bamboo board on the boxcar base. The steel pendant and the bolts on the steel pendant are composed. The problem of the railway boxcar with this structure is that the weight of the whole boxcar is heavy due to the use of bamboo boards as the heat insulation layer, and the weight of each car body is about 3 tons, which increases the self-weight of the train and cannot meet the speed of the train. Requirements, while reducing the load and volume of the train. In addition, the bolts on the steel pendant can easily scratch the cargo in the car body. Contents of the invention [0003] The pu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/00B61D17/18C09K3/00
Inventor 于庆华
Owner 锦州希尔达汽车零部件有限公司
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