Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Heat treating process and inductor for key surface of hub

A surface heat treatment and hub unit technology, applied in heat treatment furnaces, heat treatment equipment, furnace types, etc., can solve the problems of insufficient depth, difficult heating, and failure to meet the requirements of drawings, etc., to achieve easy production, low precision, and low requirements Effect

Inactive Publication Date: 2003-03-19
ZHEJIANG WANXIANG PRECISION IND
View PDF0 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] 2. Analysis of Process Difficulties
[0010] 1. The head of the part is very thin and easy to heat through; the sharp corners of the second step and the edge of the head are easy to overheat;
[0011] 2. The filter area (channel) with different diameters at the root of the flange is an area that is not easily heated, and requires a deeper hardened layer;
[0019] This method has solved the heating problem at the root of the flange of the workpiece through experiments. The groove of the workpiece can also be heated, but the depth is not enough to meet the requirements of the drawings. The test proves that this solution is also not feasible.

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
  • Heat treating process and inductor for key surface of hub
  • Heat treating process and inductor for key surface of hub
  • Heat treating process and inductor for key surface of hub

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The heat treatment method for the key surface of the wheel hub unit is to put the workpiece to be quenched into the inductor, heat it through the medium frequency induction heater, and use high power, short time, and internal water spray method for quenching. The radial gap between the workpiece and the upper induction coil is 5 to 10 mm. , the radial gap with the lower induction coil is 3-5 mm, and the axial gap is 1.5-2.5 mm.

[0033] The inductor used for surface induction heating has two guide bodies 4, an upper induction coil 5, and a lower induction coil 6, and a magnet guide 7 is arranged outside the lower induction coil. It communicates with the left semicircle of the lower induction coil, the left semicircle of the upper induction coil, the right semicircle of the lower induction coil, the right semicircle of the upper induction coil and another guide body, and passes through water.

[0034] Said upper and lower induction coils are square special-shaped copper ...

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 present invention is heat treating process and inductor for key surface of hub. During the quenching, the workpiece is set inside the inductor, heated in the MF inducing heater and quenched through great power and short time inwards water spraying. The workpiece is set between the upper and the lower inducing coils. The inductor has two flow guide bodies, one semicircular upper coil and one semicircular lower coil with magnetic conductor. The present invention has the advantages of easy-to-manufacture inductor, ideal quenched hardness in all sections of the quenched part and no obvious "sharp corner effect", and no strict requirement on the quenching machine and part fixture.

Description

technical field [0001] The invention relates to a key surface heat treatment method of a hub unit and an inductor thereof. Background technique [0002] The hub unit is a high-tech, high-value-added auto parts developed in recent years. It is the new economic growth point and development direction of the steam axle company, especially at present the company is negotiating with the world's largest auto parts supplier DELPHI on the third generation Hub unit supporting matters, so the trial production of hub unit samples is a top priority, and surface heat treatment is the key process of hub unit manufacturing; especially the surface heat treatment process of DELPHI part 7467101 / 03 is difficult and demanding, and has become a key bottleneck process of DELPHI project development. [0003] 1. For the requirements of the surface heat treatment of the key process of the DELPHI project part 7467101 / 03, see figure 1 ,described as follows: [0004] Part A: ...

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 Applications(China)
IPC IPC(8): C21D1/10C21D1/667C21D9/34
CPCY02P10/25
Inventor 周鑑高徐卫潘予
Owner ZHEJIANG WANXIANG PRECISION IND
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com