Unlock instant, AI-driven research and patent intelligence for your innovation.

A manufacturing process of iron backing plate for high-speed rail fasteners

A manufacturing process and technology of iron backing plates, applied in the field of manufacturing technology of iron backing plates for high-speed rail fasteners, can solve the problems of reduced production efficiency, increased costs, and increased complexity of the overall production process, so as to save procedures and costs, and improve The effect of production efficiency

Active Publication Date: 2019-12-13
建湖金洋科技有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of heat treatment process is aimed at castings after cooling and forming, that is, after the alloy liquid is cooled and formed, the castings are subjected to secondary heat treatment, which increases the complexity of the overall production process, resulting in increased costs and reduced production efficiency.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A manufacturing process of iron backing plate for high-speed rail fasteners
  • A manufacturing process of iron backing plate for high-speed rail fasteners
  • A manufacturing process of iron backing plate for high-speed rail fasteners

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention will be further described in detail below in conjunction with specific examples, but they should not be construed as limiting the protection scope of the present invention.

[0015] Preparation Example

[0016] Take the preparation of iron backing plates for WJ-7 fasteners as an example. In the process of implementing the present invention, an intermediate frequency GW3T-2500KW electric furnace is used to smelt the alloy raw material, and an Italian GNR direct-reading spectrum analyzer detects the elemental composition of the alloy solution.

[0017] The specific preparation process is as follows:

[0018] Prepare the alloy liquid with reference to the composition formula shown in Table 1, then pour it into the sand mold when the temperature of the alloy liquid is 1450-1460 °C, and then control the cooling process according to the parameters shown in Table 2 to form a casting, and then get the specified after-treatment Dimensions of the iron bac...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a manufacturing process of an iron backing plate for a high-speed rail fastener. The manufacturing process comprises the following steps that alloy liquid is prepared, pouringis carried out, and natural cooling is carried out to 1100 DEG C-1200 DEG C; and heat preservation is carried out for 10-40 min, cooling is then carried out to 200 DEG C-300 DEG C at the rate of 2-8 DEG C / min, and then natural cooling is carried out to room temperature. By adding a specific temperature control procedure in the cooling molding process of the alloy liquid, an iron backing plate product with excellent mechanical properties is obtained. The whole process does not need to carry out secondary heat treatment on a casting, so that working procedures and costs are saved, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of mechanical casting, and in particular relates to a manufacturing process of an iron backing plate for high-speed rail fasteners. Background technique [0002] The iron backing plate used for fasteners is an important part of the high-speed rail track damping system, and its casting process usually includes alloy liquid pouring, cooling forming, and post-processing. In addition to improving the alloy formula, optimizing the manufacturing process is an important means to improve the performance of the iron backing plate. For example, CN104294143A discloses an iron backing plate for high-speed rail fasteners and its preparation method. While improving the element formula, the heat treatment process for the casting is added, so that the tensile strength and yield strength of the product are significantly improved. However, this type of heat treatment process is aimed at castings after cooling and forming, th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C22C37/06C22C37/10C22C33/08
CPCC22C33/08C22C37/06C22C37/10
Inventor 沙金洋树士轩
Owner 建湖金洋科技有限公司