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Quenching inductor for double steps of steering joint and quenching method for steering joint

A technology for quenching inductors and steering knuckles, which is applied in the direction of furnace types, furnaces, heat treatment furnaces, etc. It can solve the problems of uniform effective hardened layer, difficulty in continuous distribution, high requirements for inductor manufacturing precision, and difficulty in process adjustment, so as to avoid early Effects of burnout, avoidance of burnout, and uniform distribution of heating temperature

Active Publication Date: 2015-04-15
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the way of overall quenching, the power of the required equipment is large, the manufacturing precision of the inductor is high, and the process adjustment is difficult; the continuous quenching method of the single-turn inductor will cause the phenomenon of magnetic field jumping due to the influence of the magnetic field distribution by the part structure , making it difficult to distribute the effective hardened layer evenly and continuously

Method used

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  • Quenching inductor for double steps of steering joint and quenching method for steering joint
  • Quenching inductor for double steps of steering joint and quenching method for steering joint
  • Quenching inductor for double steps of steering joint and quenching method for steering joint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Step 1: place the journal part 30 of the part to be processed upward on the fixture of the lower center of the machine tool, tighten the upper center; press the start button to make the part to be processed start to rotate;

[0037] Step 2: After the part rotates for 2 seconds, the quenching sensor quickly moves from the initial position to the first stationary heating position at 3000mm / min. At this time, the first annular effective heating ring 1 corresponds to the second rounded corner R2 of the part. The acute-angled portion of the second annular effective heating ring 2 corresponds to the first rounded corner R7, and the first rounded corner R7 and the second rounded corner R7 of the steering knuckle are simultaneously treated by using the first annular effective heating ring 1 and the second annular effective heating ring 2 The second rounded corner R2 and part of the journal are preheated. After heating for 10 seconds, the ring water spray ring 3 starts to spray w...

Embodiment 2

[0043] Step 1: place the journal part 30 of the part to be processed upward on the fixture of the lower center of the machine tool, tighten the upper center; press the start button to make the part to be processed start to rotate;

[0044] Step 2: After the part rotates for 2 seconds, the quenching sensor quickly moves from the initial position to the first stationary heating position at 3000mm / min. At this time, the first annular effective heating ring 1 corresponds to the second rounded corner R2 of the part. The acute-angled portion of the second annular effective heating ring 2 corresponds to the first rounded corner R7, and the first rounded corner R7 and the second rounded corner R7 of the steering knuckle are simultaneously treated by using the first annular effective heating ring 1 and the second annular effective heating ring 2 The second fillet R2 and part of the journal are heated, and after 12 seconds of heating, the ring water spray ring 3 starts to spray water;

...

Embodiment 3

[0050] Step 1: place the journal part 30 of the part to be processed upward on the fixture of the lower center of the machine tool, tighten the upper center; press the start button to make the part to be processed start to rotate;

[0051] Step 2: After the part rotates for 2 seconds, the quenching sensor quickly moves from the initial position to the first stationary heating position at 3000mm / min. At this time, the first annular effective heating ring 1 corresponds to the second rounded corner R2 of the part. The acute-angled portion of the second annular effective heating ring 2 corresponds to the first rounded corner R7, and the first rounded corner R7 and the second rounded corner R7 of the steering knuckle are simultaneously treated by using the first annular effective heating ring 1 and the second annular effective heating ring 2 The second fillet R2 and part of the journal are heated, and after 11 seconds of heating, the ring water spray ring 3 starts to spray water;

...

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Abstract

The invention relates to a quenching inductor for double steps of a steering joint and a quenching method for the steering joint. The section of the lower part of an inner circumferential part of a second annular effective heating ring of the quenching inductor is of an acute angle shape; a first annular effective heating ring is positioned above the acute angle shape; two ends of the first annular effective heating ring and two ends of the second annular effective heating ring are assembled and welded with water pipe connectors through cooling water pipes to respectively form a first conductive loop and a second conductive loop; a circular water spraying ring is positioned on one side of the periphery of the second annular effective heating ring; a water spraying hole is formed in the inner circumferential surface of the circular water spraying ring. The quenching inductor can heat the double steps of the steering joint section by section through the two effective heating rings and cool the double steps of the steering joint through the circular water spraying ring and is high in heating efficiency and high in cooling capacity, and an effective hardening layer is distributed uniformly and continuously.

Description

Technical field: [0001] The invention belongs to the technical field of commercial vehicle front drive axle parts processing, and relates to a steering knuckle double-step fillet and partial journal quenching inductor and a quenching method thereof. Background technique: [0002] The steering knuckle bears the load of the front axle and the steering function in the front drive axle at the same time, which is a security part. According to its service conditions and usage requirements, double-step transition fillets and part of the journal are required for induction hardening, and the effective hardened layer is required to be continuously distributed. In the way of overall quenching, the power of the required equipment is large, the manufacturing precision of the inductor is high, and the process adjustment is difficult; the continuous quenching method of the single-turn inductor will cause the phenomenon of magnetic field jumping due to the influence of the magnetic field di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D9/00C21D1/10
CPCY02P10/25
Inventor 姜波崔凯李航宇王宏孙凤池毛春力付吉顺郇宜梅高霞王建莉
Owner CHINA FIRST AUTOMOBILE
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