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Production method and continuous production device for railway box car floor

A technology for a railway boxcar and a production device, which is applied in the field of railway boxcars, can solve the problems of insufficient strength, reduced mechanical properties, threatening driving safety, etc., and achieves the effects of meeting hardness and impact resistance requirements, improving thermal insulation performance, and meeting development needs.

Active Publication Date: 2018-03-20
CRRC SHIJIAZHUANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Internet + e-commerce + fast railway transportation has become a new branch of freight development. Safe, fast, efficient and environmentally friendly railway transportation can better meet the needs of modern logistics development. The research and development of 160km / h railway boxcars will be the main development in response to this demand On the other hand, with the development of modern logistics, higher requirements are put forward for the performance of heat insulation, impact resistance, wear resistance, anti-skid, environmental protection and recyclability of the interior products of boxcars. The existing floors mainly include steel floors and bamboo There are two types of laminates. Although the steel floor can meet the strength and rigidity requirements, the anti-skid performance is not good, and there are safety hazards in the process of loading and unloading or cargo transportation; bamboo laminates have certain anti-skid performance and are lighter in weight, but their strength Not enough, it is easy to get damp and mildew, which will cause decay, reduce the mechanical properties, and it is easy to break and separate layers during cargo loading and unloading and transportation. Due to the poor thermal insulation performance of steel floor and bamboo laminated board, it can no longer meet the development needs of the current railway boxcar

Method used

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  • Production method and continuous production device for railway box car floor
  • Production method and continuous production device for railway box car floor

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Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] In order to solve the problems of short service life and poor weather resistance of the existing bamboo plywood, the invention provides a production method using glass fiber reinforced composite sheet as the floor of the railway boxcar, comprising the following steps:

[0024] Step 1: According to the width and design requirements of the glass fiber reinforced polyurethane sheet, pass the required number of long glass fiber ends through the yarn guide plate and then into the forming mold 4, and be continuously pulled by the traction device 8; Fiber simultaneously pulls release paper on the upper surface and the lower surface of the forming mold 4 inside.

[0025] Step 2: During the traction process, polyisocyanate, polyether polyol, foaming agent and catalyst are continuously poured into the forming mold 4 at the same time, pol...

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PUM

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Abstract

The invention discloses a railroad box car floor production method and a continuous production device thereof. The floor disclosed by the invention adopts glass fiber reinforced polyurethane composite panels in mortise and tenon joint so as to meet the hardness and impact resistant requirement, the potential risk is avoided, the security of transports of goods is guaranteed, the thermal insulation property is improved, the development requirement of the railroad box car is satisfied, the continuous production is realized by using the process method of pultrusion and reaction foaming; the shape of an inner cavity end surface of a forming mold can be replaced according to the section shape of the floor, the adaptability is stronger, and the production efficiency is higher; a yarn structure, a yard guiding plate, a forming mold, a traction device, a demolding paper guiding device, an injection device and a cooling device are arranged according to corresponding positions, the reaction foaming is performed in the forming mold through the injection device in the glass fiber reinforced process, and the traction device is used for continuously pulling out the glass fiber reinforced composite panel from the forming mold, the continuous production is realized, the structure is simplified, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of railway boxcars, in particular to a method for producing a floor of a railway boxcar and a continuous production device. Background technique [0002] The box car is a railway wagon with side walls, end walls, floors and roofs, and has sliding doors and ventilation windows on the side walls. It is used to transport valuable goods that are afraid of the sun and rain. The rapid advancement of e-commerce and the vigorous development of e-commerce have had a huge impact on people's consumption habits and promoted the rapid development of my country's logistics industry. Internet + e-commerce + fast railway transportation has become a new branch of freight development. Safe, fast, efficient and environmentally friendly railway transportation can better meet the needs of modern logistics development. The research and development of 160km / h railway boxcars will be the main development in response to this demand ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/52
CPCB29C70/523B29C70/525
Inventor 张林文杨德旭孟兆军郭娜张建武熊旭辉王艳霞梁涛许秀峰郭安胜乔东
Owner CRRC SHIJIAZHUANG CO LTD
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