CN106011438A - Heat treatment induction hardening technique for sprocket wheel - Google Patents
Heat treatment induction hardening technique for sprocket wheel Download PDFInfo
- Publication number
- CN106011438A CN106011438A CN201610503368.9A CN201610503368A CN106011438A CN 106011438 A CN106011438 A CN 106011438A CN 201610503368 A CN201610503368 A CN 201610503368A CN 106011438 A CN106011438 A CN 106011438A
- Authority
- CN
- China
- Prior art keywords
- workpiece
- heat treatment
- sprocket wheel
- quenching
- induction hardening
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- C21D9/32—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for gear wheels, worm wheels, or the like
-
- 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
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
- C21D1/10—Surface hardening by direct application of electrical or wave energy; by particle radiation by electric induction
-
- 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
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/60—Aqueous agents
-
- 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
Abstract
The invention discloses a heat treatment induction hardening technique for a sprocket wheel. The heat treatment induction hardening technique adopts the following technical steps of inspecting; cleaning and drying; hardening; cleaning and drying; tempering; detecting and performing rust-resisting treatment. According to the heat treatment induction hardening technique, the technique is simple, environmental protection without pollution in the whole process is realized, the hardness, the strength and wear resistance of the sprocket wheel can be effectively improved, and the service life of the sprocket wheel is prolonged; in the hardening step, an HX-200 medium is adopted to cool, and a workpiece is enabled to be uniformly hardened; a uniform diaphragm is formed on the surface of metal, so that the workpiece is effectively protected from being cracked; and the carried quantity is little, the hardened workpiece does not need to be cleaned, and the medium does not need to be discharged. The heat treatment induction hardening technique is suitable for various materials; the adjustment for the concentration is avoided, so that the production cost is reduced; and energy is saved, so that environmental pollution is reduced, and economic benefits are increased.
Description
Technical field
The present invention relates to a kind of sprocket wheel heat treatment induction hardening process.
Background technology
Alloy steel casting is because having the advantage such as high intensity, high-wearing feature, progressively substitute ordinary carbon steel part, it is widely used in casting field, in actual applications, need rationally to select the intensity of low-alloy steel, hardness and toughness, existing alloy steel casting Technology for Heating Processing is complicated, energy-saving effect is inconspicuous, although in its intensity of the highest raising and hardness, but can could be improved technique for certain high request, high-level workpiece.And in quenching process, go out innage, increase cost, case hardness occurs not because of the phenomenon easily split from one.Current technique, pollutes environment mostly, and the production time is long, and product is short for service life.
Summary of the invention
It is an object of the invention to provide a kind of sprocket wheel heat treatment induction hardening process, with the problem solving to propose in above-mentioned background technology.
The present invention use HX-200 as hardening media, HX-200 is that a kind of concentration contains various material, safety, colorless and odorless, without precipitation, nodeless mesh, environmental protection, the most aging, non-combustible, the high-performance hardening media of non-environmental-pollution, can be fully molten with aqueous phase, it it is moisture evaporation during quenching, concentration of medium improves relatively, after keeping the skin wet, medium composition is constant, cooling performance is constant, its metal surface is made to form uniform epithelium after quenching, stability is high, quenching hardness is high, uniformly it is unlikely to deform, point point is faster than water for high-temperature region cooling, low-temperature space cooling is less than water, workpiece can be effectively protected to prevent cracking, thus it is the hardest thoroughly to solve oil quenching, the problem that shrend is easily split.And HX-200 durability against pollution is strong, corrosion-free to workpiece and equipment, after quenching, workpiece is without cleaning, and viscosity is less than oil, and drag-out is few, low cost；Pyroconductivity is big, and quenching temperature rise is little, and production efficiency is high, is substantially reduced the cool time, saves time and expense, improves production efficiency 20%-30%, and energy-conservation about 10%, save into product integrated cost more than 20% for factory；May act as metal working lubricant, release is good.
For achieving the above object, the present invention provides following technical scheme: a kind of sprocket wheel heat treatment induction hardening process, and processing step is as follows:
A, check that workpiece has flawless, the defect such as damage, shove charge；
B, workpiece is sent into cleaning machine being dried, the time is 1-2min;
C, carry out sensing heating, heat time heating time is 6-10s, and quenching machine power setting is 60%, electric current 500A, quench stop position 1.00mm, cool down position 200mm, speed is 600mm/min, with HX-200 medium quenching cool down, use spray mode cooling down；
D, sent into cleaning-drying 1-2min in cleaning machine by by the workpiece after quenching;
Dried workpiece is tempered by E immediately, and temperature is set as 200-240 DEG C, and temperature retention time is 2-3h；
After F, use cooling medium cooling, check metallographic structure by standard, test product hardness；
G, by after workpiece immersion in liquid preventives water 3-5min take out, complete Technology for Heating Processing.
Compared with prior art, the invention has the beneficial effects as follows:
Present invention process is simple, omnidistance environment friendly and pollution-free, it is possible to the effective raising hardness of sprocket wheel, intensity and wearability, extends the service life of sprocket wheel；Quenching Step use HX-200 medium cool down; making its uniform quenching, metal surface forms uniform epithelium, and effectively protection workpiece prevents cracking; drag-out is few; workpiece No clean after quenching, medium exempts from discharge, it is adaptable to various materials; without adjusting concentration; reduce production cost, save the energy, decrease environmental pollution, increase economic efficiency.
Detailed description of the invention
Below the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Embodiment one
A kind of sprocket wheel heat treatment induction hardening process, processing step is as follows:
A, check that workpiece has flawless, the defect such as damage, shove charge；
B, workpiece is sent into cleaning machine being dried, the time is 1min;
C, carry out sensing heating, heat time heating time is 6s, and quenching machine power setting is 60%, electric current 500A, quench stop position 1.00mm, cool down position 200mm, speed is 600mm/min, with HX-200 medium quenching cool down, use spray mode cooling down；
D, sent into cleaning-drying 1min in cleaning machine by by the workpiece after quenching;
Dried workpiece is tempered by E immediately, and temperature is set as 200 DEG C, and temperature retention time is 2h；
After F, use cooling medium cooling, check metallographic structure by standard, test product hardness；
G, by after workpiece immersion in liquid preventives water 3min take out, complete Technology for Heating Processing.
Embodiment two
A kind of sprocket wheel heat treatment induction hardening process, processing step is as follows:
A, check that workpiece has flawless, the defect such as damage, shove charge；
B, workpiece is sent into cleaning machine being dried, the time is 2min;
C, carry out sensing heating, heat time heating time is 8s, and quenching machine power setting is 60%, electric current 500A, quench stop position 1.00mm, cool down position 200mm, speed is 600mm/min, with HX-200 medium quenching cool down, use spray mode cooling down；
D, sent into cleaning-drying 2min in cleaning machine by by the workpiece after quenching;
Dried workpiece is tempered by E immediately, and temperature is set as 190 DEG C, and temperature retention time is 3h；
After F, use cooling medium cooling, check metallographic structure by standard, test product hardness；
G, by after workpiece immersion in liquid preventives water 4min take out, complete Technology for Heating Processing.
Embodiment three
A kind of sprocket wheel heat treatment induction hardening process, processing step is as follows:
A, check that workpiece has flawless, the defect such as damage, shove charge；
B, workpiece is sent into cleaning machine being dried, the time is 2min;
C, carry out sensing heating, heat time heating time is 7s, and quenching machine power setting is 60%, electric current 500A, quench stop position 1.00mm, cool down position 200mm, speed is 600mm/min, with HX-200 medium quenching cool down, use spray mode cooling down；
D, sent into cleaning-drying 1min in cleaning machine by by the workpiece after quenching;
Dried workpiece is tempered by E immediately, and temperature is set as 200 DEG C, and temperature retention time is 2.5h；
After F, use cooling medium cooling, check metallographic structure by standard, test product hardness；
G, by after workpiece immersion in liquid preventives water 5min take out, complete Technology for Heating Processing.
Embodiment four
A kind of sprocket wheel heat treatment induction hardening process, processing step is as follows:
A, check that workpiece has flawless, the defect such as damage, shove charge；
B, workpiece is sent into cleaning machine being dried, the time is 1min;
C, carry out sensing heating, heat time heating time is 9s, and quenching machine power setting is 60%, electric current 500A, quench stop position 1.00mm, cool down position 200mm, speed is 600mm/min, with HX-200 medium quenching cool down, use spray mode cooling down；
D, sent into cleaning-drying 1min in cleaning machine by by the workpiece after quenching;
Dried workpiece is tempered by E immediately, and temperature is set as 1950 DEG C, and temperature retention time is 3h；
After F, use cooling medium cooling, check metallographic structure by standard, test product hardness；
G, by after workpiece immersion in liquid preventives water 5min take out, complete Technology for Heating Processing.
Embodiment five
A kind of sprocket wheel heat treatment induction hardening process, processing step is as follows:
A, check that workpiece has flawless, the defect such as damage, shove charge；
B, workpiece is sent into cleaning machine being dried, the time is 2min;
C, carry out sensing heating, heat time heating time is 10s, and quenching machine power setting is 60%, electric current 500A, quench stop position 1.00mm, cool down position 200mm, speed is 600mm/min, with HX-200 medium quenching cool down, use spray mode cooling down；
D, sent into cleaning-drying 2min in cleaning machine by by the workpiece after quenching;
Dried workpiece is tempered by E immediately, and temperature is set as 180 DEG C, and temperature retention time is 2h；
After F, use cooling medium cooling, check metallographic structure by standard, test product hardness；
G, by after workpiece immersion in liquid preventives water 3min take out, complete Technology for Heating Processing.
Experimental example:
The heat treatment induction hardening process that sprocket wheel uses ordinary heat treatment and various embodiments of the present invention processes, the experimental data obtained such as following table:
From above table data, the sprocket wheel quenching using the technique of embodiment five to obtain has optimum efficiency.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, being appreciated that and these embodiments can carry out multiple change without departing from the principles and spirit of the present invention, revise, replace and modification, the scope of the present invention be defined by the appended.
Claims (1)
1. a sprocket wheel heat treatment induction hardening process, it is characterised in that: processing step is as follows:
A, check that workpiece has flawless, the defect such as damage, shove charge；
B, workpiece is sent into cleaning machine being dried, the time is 1-2min;
C, carry out sensing heating, heat time heating time is 6-10s, and quenching machine power setting is 60%, electric current 500A, quench stop position 1.00mm, cool down position 200mm, speed is 600mm/min, with HX-200 medium quenching cool down, use spray mode cooling down；
D, sent into cleaning-drying 1-2min in cleaning machine by by the workpiece after quenching;
Dried workpiece is tempered by E immediately, and temperature is set as 180-200 DEG C, and temperature retention time is 2-3h；
After F, use cooling medium cooling, check metallographic structure by standard, test product hardness；
G, by after workpiece immersion in liquid preventives water 3-5min take out, complete Technology for Heating Processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610503368.9A CN106011438A (en) | 2016-07-01 | 2016-07-01 | Heat treatment induction hardening technique for sprocket wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610503368.9A CN106011438A (en) | 2016-07-01 | 2016-07-01 | Heat treatment induction hardening technique for sprocket wheel |
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| Publication Number | Publication Date |
|---|---|
| CN106011438A true CN106011438A (en) | 2016-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610503368.9A Pending CN106011438A (en) | 2016-07-01 | 2016-07-01 | Heat treatment induction hardening technique for sprocket wheel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588179A (en) * | 2017-11-08 | 2018-01-16 | 临沂市金立机械有限公司 | A kind of new material for sprocket wheel gas quenching and the technique using material processing sprocket wheel |
| CN109750148A (en) * | 2017-11-03 | 2019-05-14 | 常州盛天传动件有限公司 | A kind of mesh-belt conveying formula tempering production technology and production line for sprocket wheel production |
| CN112813236A (en) * | 2021-01-04 | 2021-05-18 | 安徽黄山恒久链传动有限公司 | High-frequency quenching process for improving toughness of chain wheel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838729A (en) * | 2009-03-20 | 2010-09-22 | 王锦堂 | Sprocket tooth part induction heat treatment process |
| CN102409142A (en) * | 2011-11-28 | 2012-04-11 | 中国第一汽车股份有限公司 | Commercial vehicle gear box three-speed gear induction quenching process |
| CN103409607A (en) * | 2013-08-06 | 2013-11-27 | 重庆大江工业有限责任公司 | Chain wheel quenching method and quenching inductor |
| CN103695778A (en) * | 2013-12-24 | 2014-04-02 | 攀枝花攀煤矿山机械制造有限公司 | Preparation technology for chain wheel of heavy scraper conveyor |
| AU2015100926A4 (en) * | 2015-02-28 | 2015-08-13 | Shandong Energy Heavy Equipment Manufacturing Group Co., Ltd. | Processing method of mining-drive sprocket for round-link chain |
-
2016
- 2016-07-01 CN CN201610503368.9A patent/CN106011438A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838729A (en) * | 2009-03-20 | 2010-09-22 | 王锦堂 | Sprocket tooth part induction heat treatment process |
| CN102409142A (en) * | 2011-11-28 | 2012-04-11 | 中国第一汽车股份有限公司 | Commercial vehicle gear box three-speed gear induction quenching process |
| CN103409607A (en) * | 2013-08-06 | 2013-11-27 | 重庆大江工业有限责任公司 | Chain wheel quenching method and quenching inductor |
| CN103695778A (en) * | 2013-12-24 | 2014-04-02 | 攀枝花攀煤矿山机械制造有限公司 | Preparation technology for chain wheel of heavy scraper conveyor |
| AU2015100926A4 (en) * | 2015-02-28 | 2015-08-13 | Shandong Energy Heavy Equipment Manufacturing Group Co., Ltd. | Processing method of mining-drive sprocket for round-link chain |
Non-Patent Citations (2)
| Title |
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| 中国机械工程学会热处理学会: "《热处理手册 第1卷 工艺基础 第4版》", 31 January 2008, 北京：机械工业出版社 * |
| 任玉宝: "《实用齿轮加工手册》", 31 July 1988, 青海人民出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109750148A (en) * | 2017-11-03 | 2019-05-14 | 常州盛天传动件有限公司 | A kind of mesh-belt conveying formula tempering production technology and production line for sprocket wheel production |
| CN107588179A (en) * | 2017-11-08 | 2018-01-16 | 临沂市金立机械有限公司 | A kind of new material for sprocket wheel gas quenching and the technique using material processing sprocket wheel |
| CN107588179B (en) * | 2017-11-08 | 2020-02-07 | 临沂市金立机械有限公司 | Novel material for sprocket gas quenching and process for machining sprocket by using novel material |
| CN112813236A (en) * | 2021-01-04 | 2021-05-18 | 安徽黄山恒久链传动有限公司 | High-frequency quenching process for improving toughness of chain wheel |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20161012 |