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Slide board for railway passenger dedicated line bridge support, modified ultra-high molecular weight polyethylene and production method for producing the slide board

An ultra-high molecular weight, passenger-dedicated line technology, applied in the field of slide plates for bridge supports, can solve the problems of wasting materials, increasing the construction cost of railway passenger-dedicated lines, and the weight of PTFE plates, so as to reduce the weight of supports and prevent relative sliding , Improve the effect of stamping resistance

Inactive Publication Date: 2008-12-24
深州市工程塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the currently used slide plates for bridge supports use PTFE plates. Although they have the advantages of wear resistance, stamping resistance, and small friction coefficient, due to the defects in the proportion of raw materials, the PTFE plates are heavy and waste materials. Increased the construction cost of the railway passenger dedicated line

Method used

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  • Slide board for railway passenger dedicated line bridge support, modified ultra-high molecular weight polyethylene and production method for producing the slide board
  • Slide board for railway passenger dedicated line bridge support, modified ultra-high molecular weight polyethylene and production method for producing the slide board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The first step is to prepare a masterbatch according to the weight percentage of ultra-high molecular weight polyethylene 85%, low molecular weight polytetrafluoroethylene 2%, polybismaleimide 6%, molybdenum disulfide 4%, silicone oil 3%, and stir Evenly, take the composition according to the weight of the bridge bearing of the required railway passenger dedicated line, and pack it into a mould;

[0033] Step 2: Heat the mold to a temperature of 270°C-285°C, a pressure of 24Mpa, and a duration of 30 minutes;

[0034] Step 3: Cool the mold and take out the slide;

[0035] Step 4: Dimple the upper surface of the skateboard by mechanical means, and grind the lower surface of the skateboard to a rough surface.

Embodiment 2

[0037] The first step is to prepare a masterbatch according to the weight percentage of ultra-high molecular weight polyethylene 93%, low molecular weight polytetrafluoroethylene 1%, polyamide fiber 2%, molybdenum disulfide 2%, ethylene-propylene copolymer 2%, and stir Evenly, take the composition according to the weight of the bridge bearing of the required railway passenger dedicated line, and pack it into a mould;

[0038] Step 2: Heat the mold to a temperature of 260°C to 270°C, a pressure of 26Mpa, and a duration of 40 minutes;

[0039] The third step and the fourth step are the same as in Example 1.

Embodiment 3

[0041] The first step is to prepare a masterbatch according to the weight percentage of 89% of ultra-high molecular weight polyethylene, 2% of low molecular weight polytetrafluoroethylene, 3% of polyamide fiber, 3% of molybdenum disulfide, and 3% of rare earth, and stir evenly. The composition needs to be weighed according to the weight of the bridge bearing of the railway passenger dedicated line, and packed into a mould;

[0042] Step 2: Heat the mold to a temperature of 260°C to 270°C, a pressure of 26Mpa, and a duration of 50 minutes;

[0043] The third step and the fourth step are the same as in Example 1.

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Abstract

The invention discloses a return board for a railway passenger-dedicated line bridge support, modified ultra-high molecular weight polyethylene for producing the return board, and a production method. The main technical characteristic is that: the lower surface of the return board for the railway passenger-dedicated line bridge support is a coarse surface, and the return board is made of the modified ultra-high molecular weight polyethylene comprising 85 to 93 percent of ultra-high molecular weight polyethylene, 1 to 2 percent of low molecular weight polyfluortetraethylene, 2 to 6 percent of poly acyl compound, 2 to 4 percent of supramoly and 2 to 7 percent of a cross-linking agent, etc. The return board has the advantages of strong wear resistance, self-lubricating property, strong anti-punching ability and light weight. The adoption of the return board effectively reduces the weight of the support, lowers the cost of the support, and has high social and economical benefits.

Description

technical field [0001] The invention relates to a slide plate for a bridge support, a raw material and a production method, in particular to a slide plate for a bridge support of a railway passenger dedicated line, a modified ultra-high molecular weight polyethylene for producing the slide plate and a production method. Background technique [0002] With the development of industry and the acceleration of the pace of life, more and more railway passenger dedicated lines will be built. In order to reduce land occupation, most railway passenger dedicated lines adopt viaducts. In this way, the use of bridge supports increases greatly. Similarly, the amount of slides used for bridge bearings will also increase significantly. Most of the currently used slide plates for bridge supports use PTFE plates. Although they have the advantages of wear resistance, stamping resistance, and small friction coefficient, due to the defects in the proportion of raw materials, the PTFE plates are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/04C08L23/06C08K3/30B29C43/02C08L27/18C08L79/08C08L83/04C08L77/00C08L23/16
Inventor 杜文明庄军生藏晓秋
Owner 深州市工程塑料有限公司
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