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A railway freight gondola car column and preparation method thereof

A column and railway technology, applied in the field of polymer material production, can solve the problems of non-interchangeability and reusability, different sizes of logs, and no guarantee of safety, etc., to achieve a balance between rigidity and flexibility, and safety. The effect of high and blasting stress balance

Active Publication Date: 2016-11-02
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the size of the round wood is different, and the car columns formed are not standardized, not interchangeable and reusable, and discarded after one-time use will cause a lot of waste, and the safety is not guaranteed.

Method used

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  • A railway freight gondola car column and preparation method thereof
  • A railway freight gondola car column and preparation method thereof
  • A railway freight gondola car column and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Nylon resin is used as raw material to produce the method for new material railway freight gondola car column, and its production steps are:

[0055] In the first step, 20 parts of reinforcing fibers (glass fibers of 6 mm) are pretreated to obtain pretreated reinforcing fibers with 0.1 part of coupling agent; 80 parts of nylon resin (nylon 6), 20 parts of pretreated Reinforcing fiber, 0.5 part of nucleating agent (ultrafine talc powder), 0.2 part of heat stabilizer (barium stearate), 0.3 part of antioxidant (antioxidant 1010), 0.5 part of lubricant (chlorinated paraffin) and stirring and mixing Evenly, dry at 80-90°C for 2.5 hours, and prepare a composite material by three-screw extrusion and granulation, and the temperature of the extruder is 290°C.

[0056] In the second step, after the prepared composite material is dried, add 100 parts of composite material by mass ratio, 3 parts of toughening agent (low density polyethylene), 1.0 part of filler (select light calciu...

Embodiment 2

[0061] Nylon resin is used as raw material to produce the method for new material railway freight gondola car column, and its production steps are:

[0062] The first step, with 3 parts of coupling agents (KH560), 30 parts of reinforced fibers (carbon fiber of 3mm) are pretreated to obtain pretreated reinforced fibers; by mass ratio, 70 parts of nylon resin (nylon 66), 30 parts of Pretreatment of reinforcing fibers, 1.5 parts of nucleating agent (ultrafine talc powder), 1.0 parts of heat stabilizer (zinc stearate), 0.5 parts of antioxidant (antioxidant 1010), 1.5 parts of lubricant (molybdenum dioxide powder ) stirring and mixing evenly, drying at 80-90° C. for 4 hours, and preparing a composite material through three-screw extrusion and granulation, and the temperature of the extruder is 275° C.

[0063] In the second step, after the prepared composite material is dried, add 100 parts of composite material by mass ratio, 10 parts of toughening agent (EPDM rubber), 5 parts of ...

Embodiment 3

[0068] Nylon resin is used as raw material to produce the method for new material railway freight gondola car column, and its production steps are:

[0069] The first step, with 5 parts of coupling agents (KH560), 40 parts of reinforcing fibers (bamboo fibers of 12mm) are pretreated to obtain pretreated reinforcing fibers; 60 parts of nylon resin (PA66), 40 parts of Pretreated reinforcing fibers, 3 parts nucleating agent (molybdenum disulfide), 2 parts heat stabilizer (di-n-butyltin dilaurate), 1.5 parts antioxidant (antioxidant 2246), 1.0 parts lubricant (polyglycerol Fatty acid esters) were stirred and mixed evenly, dried at 80-90°C for 1 hour, and composite materials were prepared by three-screw extrusion and granulation, and the temperature of the extruder was 275°C.

[0070] In the second step, after the prepared composite material is dried, add 100 parts of composite material by mass ratio, 10 parts of toughening agent (styrene-butadiene-styrene block copolymer), 6 parts...

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Abstract

The invention discloses a railway freight gondola car column and a preparation method thereof. The car column is prepared from composite materials, toughening agents, fillers and compatibilizers with a mass ratio of 100: (3-15): (0.1-10): (0.1-5); wherein, by weight, The composite material consists of 60-80 parts of nylon resin, 20-40 parts of reinforcing fiber, 0.1-5 parts of coupling agent, 0.5-3 parts of nucleating agent, 0.2-3 parts of heat stabilizer, 0.3-1.5 parts of It is prepared from antioxidant and 0.5-1.5 parts of lubricant. After the strength calculation and ANSYS software analysis of the new material car column, and considering the isotropy requirements and ease of use, a square field shape (rounded corners) is adopted: the cross-sectional size is 45×45mm, the wall thickness is 6mm, and the outer rounded corners are 10mm. The invention has the advantages of sufficient impact strength, bending strength, good weather resistance, balance of blasting stress, balance of rigidity and flexibility, etc., and can be recycled and used.

Description

technical field [0001] The invention belongs to the field of polymer material production, and in particular relates to a railway freight gondola car column and a preparation method thereof. Background technique [0002] In the process of transporting logs and other goods, the railway freight gondola car will use the car column, and now the log type car column is more used. It has the advantages of obtaining local materials and being simple and easy to implement. However, the round logs are of different sizes, and the car columns formed are not standardized, not interchangeable and reusable, and discarded after one-time use causes a lot of waste, and the safety is not guaranteed. Contents of the invention [0003] In order to solve the shortcomings of the prior art and meet the application requirements of the new material car column, the present invention proposes a railway freight open car column and a preparation method thereof, aiming at using polymer materials instead ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/00C08L77/02C08L77/06C08K13/06C08K9/06C08K7/06C08K7/14C08L97/02C08L77/10
CPCC08K2003/2241
Inventor 张敏王正宏许小玲袁越锦
Owner SHAANXI UNIV OF SCI & TECH
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