CN107653369B - A kind of high-frequency induction heating case heat treating method - Google Patents
A kind of high-frequency induction heating case heat treating method Download PDFInfo
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- CN107653369B CN107653369B CN201710935426.XA CN201710935426A CN107653369B CN 107653369 B CN107653369 B CN 107653369B CN 201710935426 A CN201710935426 A CN 201710935426A CN 107653369 B CN107653369 B CN 107653369B
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- Prior art keywords
- spud
- heating
- frequency induction
- creeper tread
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/42—Induction heating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention belongs to material heat treatment technical fields, more particularly to a kind of high-frequency induction heating case heat treating method that can be improved creeper tread spud wearability, the present invention can carry out local heat treatmet to components such as creeper tread spuds, by executing the heat treatment steps such as local high-frequency induction quenching and cooling, in the case where guaranteeing that substrate performance is constant, improve the hardness of the key positions such as spud, enhance the wearability of key position, to extend bulk life time, and then the safety and reliability of effective guarantee armored vehicle behavioral system.
Description
Technical field
The invention belongs to material heat treatment technical fields, and in particular to a kind of creeper tread spud wearability of can be improved
High-frequency induction heating case heat treating method.
Background technique
Creeper tread is the important component of tracked armored vehicle behavioral system, is played armored vehicle entirety mobility
Important function.In armored vehicle walking process, rubbing action occurs for creeper tread to obtain with ground by the spud of bottom surface
Good adherence properties, it is ensured that vehicle is steady, reliable, safety.In previous creeper tread machining manufacture, do not take effectively
Technical method carries out local wearability protection to spud, and spud is caused to collide with for a long time by friction under harsh service condition
Serious abrasion is formed, is scrapped so as to cause monolith creeper tread.
In order to improve the wearability of creeper tread spud, need in the case where guaranteeing that creeper tread substrate performance is constant, it is right
Spud carries out local heat treatmet, to improve the hardness of spud.Therefore, it is necessary to develop to be suitble to creeper tread spud etc. zero
The method of component progress local heat treatmet.
Summary of the invention
(1) technical problems to be solved
The present invention proposes a kind of high-frequency induction heating case heat treating method, to solve how to guarantee that substrate performance is constant
In the case where improve points hardness the technical issues of.
(2) technical solution
In order to solve the above-mentioned technical problem, the present invention proposes at a kind of high-frequency induction heating localized heat of creeper tread spud
Reason method；Wherein, which includes the following steps:
S1, the creeper tread for carrying out local heat treatmet will be needed to be placed on workbench, using high frequency induction heater to shoe
Band plate is heated；Wherein, inductor is connected in the output end of high frequency induction heater, inductor is in alignment with crawler belt when heating
Need to carry out the spud of local heat treatmet on plate, to carry out local heating to spud；
S2, the power supply for opening high frequency induction heater are needing to carry out localized heat by the inductor output high-energy magnetic line of force
Magnetic flux loop is formed at the spud of processing, high-strength magnetic energy instantaneous conversion is high-strength thermal energy and is gathered in around spud, with right
Spud carries out local fast heating, makes spud that structural transformation occur rapidly；Wherein, when heating between inductor and spud
Gap is 2~4mm；When carrying out local heating, the operating voltage of high frequency induction heater is 8.5 ± 0.1KV, executes laser heating mould
Formula, heating time are 12~15s；
After S3, local heating, creeper tread is rapidly cooled by way of water-spraying control, is completed to spud
Quenching treatment；Wherein, cooler-water temperature is 40~80 DEG C；
S4, creeper tread progress lonneal processing under conditions of interval is no more than 4h, to quenching treatment is passed through；Its
In, the holding temperature of tempering is 160 ± 20 DEG C, and soaking time is 90~120min.
Further, before step S 4, rotary table makes other on inductor alignment creeper tread need to carry out part
The spud of heat treatment executes step S2 and S3 again, completes to all needing to carry out local heat treatmet on creeper tread to land
The quenching treatment of muscle.
Further, the inductor used when heating is similar with needing to carry out the spud shape of local heat treatmet imitative
Shape inductor.
Further, heating time 13s.
(3) beneficial effect
High-frequency induction heating case heat treating method proposed by the present invention can carry out the components such as creeper tread spud
Local heat treatmet is guaranteeing that substrate performance is constant by executing the heat treatment steps such as local high-frequency induction quenching and cooling
In the case where, the hardness of the key positions such as spud is improved, the wearability of key position is enhanced, thus extend bulk life time, into
And the safety and reliability of effective guarantee armored vehicle behavioral system.
Detailed description of the invention
Fig. 1 is the creeper tread spud and profiling inductor schematic diagram of the embodiment of the present invention.
Specific embodiment
To keep the purpose of the present invention, content and advantage clearer, with reference to the accompanying drawings and examples, to tool of the invention
Body embodiment is described in further detail.
The present embodiment proposes that a kind of creeper tread spud for armored vehicle carries out at high-frequency induction heating localized heat
Reason method, the local heat treatmet device for executing the case heat treating method includes rotary table, high frequency induction heater and spray
Water-cooling apparatus.
Rotary table, for carrying the creeper tread for needing to carry out local heat treatmet.It needs to carry out hot place in the present embodiment
The spud of reason is arranged symmetrically on creeper tread, so by the rotation of workbench, it can be to symmetrically arranged spud
Successively carry out local heat treatmet.
High frequency induction heater, for being heated to spud.Wherein, it is connected in the output end of high frequency induction heater
There is profiling inductor similar with needing to carry out the spud shape of local heat treatmet, profiling inductor can be simultaneously in alignment with need
Multiple spuds of local heat treatmet are carried out, carry out local heating with multiple spuds to side, as shown in Figure 1.This reality
Three spuds for applying every side in example include two "-" type spuds and a T font spud.Profiling inductor with
The gap for needing to carry out the spud of local heat treatmet is 2~4mm.
Equipment water jetting cooler, for being sprayed to position after high frequency induction heater carries out local heating to spud
Water is cooling, to complete to handle the high-frequency quenching of creeper tread spud.
The present embodiment carries out high-frequency induction heating case heat treating method to creeper tread spud, includes the following steps:
S1, creeper tread is placed on rotary table, makes the profiling inductor of high frequency induction heater while alignment one
Three spuds of side, enable high frequency induction heater according to the shape of spud, accurately carry out local heating to it,
Other positions without influencing creeper tread；Meanwhile the gap for adjusting profiling inductor and spud is 2~4mm；
S2, the power supply for opening high frequency induction heater are passed through based on kindred effect, kelvin effect and annular effect
Profiling inductor output high-energy magnetic line forms the magnetic flux loop in spud region, and high-strength magnetic energy instantaneous conversion is high-strength thermal energy and gathers
It combines in around spud, to carry out local fast heating to three spuds, makes that structural transformation occurs at spud rapidly；Heating
When, the operating voltage of high frequency induction heater is selected as 8.5 ± 0.1KV, executes laser heating mode, and heating time is 12~
15s, the present embodiment are preferably 13s；
After S3, spud heating, opens equipment water jetting cooler and creeper tread is rapidly cooled, cooling water can follow
Ring uses, and maintains water temperature at 40~80 DEG C；The material structure of needs can be obtained after quick water-spraying control；
S4, workbench is rotated, make the profiling inductor of high frequency induction heater while is directed at three of the other side
Spud executes step S2 and S3 again, to complete the quenching treatment to spuds whole on creeper tread；
S5, under conditions of interval is no more than 4h, the creeper tread by quenching treatment is packed into common box or well formula electricity
It hinders and carries out lonneal in furnace, 160 ± 20 DEG C of tempering temperature, 90~120min of soaking time；After lonneal, it can obtain
The material structure and hardness that must be needed.
Previous spud is without local specially treated, and spud hardness is HRC40~45, in armored vehicle sport car process
In be prone to wear out, spud is worn totally substantially when sport car 4000Km or so, needs to change monolith creeper tread.Use the present embodiment
High-frequency induction heating case heat treating method carry out local heat treatmet after, the hardness of spud is increased to HRC53 or more, armoring
Occur when vehicle sport car 6000Km almost without abrasion condition.
The present embodiment feature quick based on high-frequency induction heating technique to high-efficiency, to creeper tread spud position carry out office
During portion's heat treatment is to strengthen spud performance, creeper tread main part will not be thermally influenced, and matrix does not occur
Variation, can guarantee the original intensity of creeper tread and toughness.Meanwhile the profiling induction heating mode diathermanous time is short, phase transformation transformation
Fastly, the inside parts structural stress of generation and thermal stress are smaller, can reach the minimum effect of part deformation amount.
Using the high-frequency induction heating case heat treating method of the present embodiment, high production efficiency, the parts quenching time is ten
Several seconds, typical products in mass production production task can be completed in a short time.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (4)
1. a kind of high-frequency induction heating case heat treating method of creeper tread spud；Wherein, the case heat treating method packet
Include following steps:
S1, the creeper tread for carrying out local heat treatmet will be needed to be placed on workbench, using high frequency induction heater to the shoe
Band plate is heated；Wherein, be connected with inductor in the output end of the high frequency induction heater, when heating the inductor pair
Standard is in the spud for needing to carry out local heat treatmet on the creeper tread, to carry out local heating to the spud；
S2, the power supply for opening the high frequency induction heater are needing carry out office by the inductor output high-energy magnetic line of force
Magnetic flux loop is formed at the spud of portion's heat treatment, high-strength magnetic energy instantaneous conversion is high-strength thermal energy and is gathered in the spud
Around, to carry out local fast heating to the spud, make the spud that structural transformation occur rapidly；Wherein, it heats
The gap of Shi Suoshu inductor and the spud is 2~4mm；When carrying out local heating, the work of the high frequency induction heater
Making voltage is 8.5 ± 0.1KV, executes laser heating mode, and heating time is 12~15s；
After S3, local heating, the creeper tread is rapidly cooled by way of water-spraying control, is completed to described
The quenching treatment of ground muscle；Wherein, cooler-water temperature is 40~80 DEG C；
S4, interval be no more than 4h under conditions of, to Jing Guo the quenching treatment the creeper tread progress lonneal processing；
Wherein, the holding temperature of the tempering is 160 ± 20 DEG C, and soaking time is 90~120min.
2. case heat treating method as described in claim 1, which is characterized in that before step S 4, the workbench is rotated,
So that the inductor is directed on the creeper tread other and need to carry out the spud of local heat treatmet, execute again step S2 and
S3 completes the quenching treatment to the spud for all needing to carry out local heat treatmet on the creeper tread.
3. case heat treating method as described in claim 1, which is characterized in that the inductor used when heating is and needs
Carry out the similar profiling inductor of the spud shape of local heat treatmet.
4. case heat treating method as described in claim 1, which is characterized in that the heating time is 13s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710935426.XA CN107653369B (en) | 2017-10-10 | 2017-10-10 | A kind of high-frequency induction heating case heat treating method |
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| CN201710935426.XA CN107653369B (en) | 2017-10-10 | 2017-10-10 | A kind of high-frequency induction heating case heat treating method |
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| Publication Number | Publication Date |
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| CN107653369A CN107653369A (en) | 2018-02-02 |
| CN107653369B true CN107653369B (en) | 2019-04-12 |
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| CN112176168A (en) * | 2020-09-23 | 2021-01-05 | 北京北方车辆集团有限公司 | End connector inner arc surface induction heating process method |
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| JP4131715B2 (en) * | 2004-05-18 | 2008-08-13 | トピー工業株式会社 | Method and apparatus for partial heat treatment of heat treatment member |
| CN102102143A (en) * | 2010-04-11 | 2011-06-22 | 马成训 | Heat treatment process of limited deep hardening of groove end of shifting fork and special device thereof |
| CN103451402B (en) * | 2013-09-01 | 2015-04-22 | 株洲九方热表技术有限公司 | Heat treatment method of large shaft part |
| CN203700445U (en) * | 2013-12-12 | 2014-07-09 | 内蒙古科技大学 | Continuous induction heating apparatus for postweld heat treatment of panel |
| CN204915882U (en) * | 2015-06-24 | 2015-12-30 | 北京北方车辆集团有限公司 | Solid forging formula grip -pad |
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