Carburizing steel bearing quenching mold

A carburizing steel and bearing technology, applied in quenching devices, manufacturing tools, heat treatment equipment, etc., can solve the problems of narrow oil groove, unqualified hardness of carburized steel bearing core, and low oil flow, etc.

Pending Publication Date: 2019-02-15
WAFANGDIAN BEARING GRP STATE BEARING ENG TECH RES CENT CO LTD
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the design method of the previous quenching die is used again, it can no longer meet the heat treatment requirements of the carburized steel bearing ring; the original design of the carburized steel bearing quenching die for railway wagons does not have a horizontal oil hole, and the oil groove of the di

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
  • Carburizing steel bearing quenching mold
  • Carburizing steel bearing quenching mold
  • Carburizing steel bearing quenching mold

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] As shown in the figure, the carburizing steel bearing quenching mold includes an upper mold and a lower mold 1. The lower mold 1 is a truncated conical structure, and a number of oil passage grooves 2 are evenly opened in the circumferential side wall of the lower mold 1 in the longitudinal direction. In each oil passage groove 2 There is an oil hole 3 on it;

[0021] The oil through hole 3 is arranged in one-third of the entire lower mold 1;

[0022] Each of the oil through holes 3 is a transverse oil through hole of the lower mold 1, and each of the oil through holes 3 is set at the same horizontal height of the truncated cone;

[0023] The horizontal oil hole 3 is a closed structure, the outer diameter of the oil hole is 20mm, and the diameter of the end of the oil hole facing the oil inlet direction is 18mm;

[0024] The horizontal oil hole 3 of the mold...

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 relates to a bearing quenching mold, in particular to a carburizing steel bearing quenching mold in the heat treatment process of a wagon and belongs to the technical field of bearings.An upper mold and a lower mold are included; the lower mold is of a cone frustum structure; the circumferential side wall of the lower mold is uniformly provided with a plurality of oil passing grooves in the longitudinal direction, and each oil passing groove is provided with an oil passing hole; a transverse oil passing hole is added for the mold, quenching oil is circulated both inside and outside the quenching mold, and the quenching cooling capacity is improved; the oil grooves for oil passing of the mold are widened, the oil passing amount is large, the mold quenching and cooling capacity is further improved, the carburizing steel bearing core hardness is improved, and therefore the heat treatment quality and the service life of the wagon bearing are guaranteed; and the carburizing steel bearing quenching mold after being optimized thoroughly solves the problem that core hardness is low.

Description

technical field [0001] The invention relates to a bearing quenching die, in particular to a quenching die for carburizing steel bearings in the heat treatment process of railway wagons, and belongs to the technical field of bearings. Background technique [0002] In recent years, with the development of my country's manufacturing industry, the shape of bearings has become more and more complex, the size has become larger, and the effective wall thickness has become thicker and thicker. If the design method of the previous quenching die is used again, it can no longer meet the heat treatment requirements of the carburized steel bearing ring; the original design of the carburized steel bearing quenching die for railway wagons does not have a horizontal oil hole, and the oil groove of the die is particularly narrow. The amount of oil passing through is small, and the quenching and cooling capacity cannot be guaranteed, resulting in unqualified hardness at the core of the carbur...

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
IPC IPC(8): C21D1/673C21D9/40
CPCC21D1/673C21D9/40
Inventor 吴琼于志敏苍会增刘兆红范福炜唐虎娇董智鹏姚艳书
Owner WAFANGDIAN BEARING GRP STATE BEARING ENG TECH RES CENT CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap