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Method for ball socket surface quenching and special inductive loop

A surface quenching and ball-and-socket technology, applied in the method and its special induction coil, the field of ball-and-socket surface quenching, can solve the problem of not meeting the demand and so on.

Active Publication Date: 2009-10-07
SHANDONG HONGYU AGRI MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional ball and socket quenching process can no longer meet the demand

Method used

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  • Method for ball socket surface quenching and special inductive loop
  • Method for ball socket surface quenching and special inductive loop
  • Method for ball socket surface quenching and special inductive loop

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1, a kind of method for ball socket surface quenching, refer to figure 1 , figure 2 , image 3 , is to use the inductance coil to contact the surface of the ball and socket, and do slow rotation and swing compound motion with the center of the ball and socket as the center. The input voltage of the inductance coil is 380V, and the input current of the super audio frequency induction heating power supply of the inductance coil is 20A ~ 30A. The oscillation frequency of the audio induction heating power supply is 30KHZ ~ 40KHZ. The input current and oscillation frequency of the super audio induction heating power supply of the inductor coil are determined according to the requirements of the size of the ball socket and the depth of the hardened layer. Generally, the ball socket Every time the diameter increases by 2mm, the input current will increase by 1A, and the oscillation frequency will decrease by 1KHZ. The outer diameter of the inductance coil used is ...

Embodiment 2

[0020] Embodiment 2, a method for quenching the surface of a ball and socket, refer to figure 1 , figure 2 , image 3 , taking the processing of the FT800.55.129B inner lifting arm ball socket as an example, the processing process and the structure of the inductance coil used are exactly the same as in Example 1. The high-frequency quenching hardness of the ball socket surface required by this embodiment is HRC56-62, and the hardened layer The depth is 1.2-2.5, so the input current is adjusted to 30A, the oscillation frequency is adjusted to 30KHZ, and then the temperature self-sensing system is adjusted according to its hardness requirements and hardened layer requirements. The lifting arm is clamped on the tooling, and slowly rotates and swings. After about 15 seconds, the system will automatically spray water for cooling. Others are exactly the same as in Embodiment 1.

[0021] The operation according to the inventive method can not only stabilize the mechanical properti...

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Abstract

The invention discloses a method for ball socket surface quenching and a special inductive loop thereof. The method adopts an induction loop to contact the surface of a ball socket and does compound movement of slow rotation and swinging centered by the center of the ball socket, wherein the input voltage of the induction loop is 380V, the input current of a supersonic frequency induction heating power supply of the induction loop is 20A-30A, and the oscillating frequency is 30kHz-40kHz; the used induction loop is a copper tubing with spiral winding and the lower end thereof shapes like a gyro; and a magnetizer is arranged in the spiral of the spiral copper tube. The method is characterized by convenience, practicality, manpower and physical resources conservation, good reliability, and stable mechanical performance of the processed workpiece.

Description

technical field [0001] The invention belongs to the field of metal heat treatment technology and equipment thereof, and in particular relates to a method for quenching the surface of a ball socket and a special inductance coil thereof. Background technique [0002] In recent years, for the surface quenching of metal parts with ball sockets, the flame burned by the mixed gas of acetylene-oxygen or gas-oxygen is generally used, sprayed on the surface of the part to make it rapidly heated, and spray water immediately when the quenching temperature is reached Cooling, so as to obtain the expected hardness and hardened layer depth, a surface quenching method, the whole process is very simple, and no special equipment is required, but in the whole operation process, it is easy to cause the surface of the workpiece to be overheated or the temperature is not enough, and the cooling time is too long. If it is too long or too short, it is easy to cause cracks on the surface of the wor...

Claims

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Application Information

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IPC IPC(8): C21D1/10C21D9/00C21D1/62
CPCY02P10/25
Inventor 于晓卿王忠明于志浩王祎博林霞唐国松
Owner SHANDONG HONGYU AGRI MACHINERY
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