CN1289696C - Wheel rotating quenching process and apparatus therefor - Google Patents
Wheel rotating quenching process and apparatus therefor Download PDFInfo
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- CN1289696C CN1289696C CN 200510046165 CN200510046165A CN1289696C CN 1289696 C CN1289696 C CN 1289696C CN 200510046165 CN200510046165 CN 200510046165 CN 200510046165 A CN200510046165 A CN 200510046165A CN 1289696 C CN1289696 C CN 1289696C
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Abstract
The present invention relates to a vehicle wheel rotating quenching technical method and a device used for the technical field of the heat treating technology of machine components. The vehicle wheel rotating quenching technology comprises the following steps: before being heated, the vehicle wheels of different sizes and specifications need to mark the water level; the position of the required water level is marked; the vehicle wheels are suspended on driving axle wheels and driven rollers of a vehicle wheel rotating quenching device; the water level needs to rapidly reach the preset height for carrying out rotary quenching treatment to the vehicle wheels; a valve of a water sprayer is opened, and water is uniformly sprayed on the pedaling surfaces of the vehicle wheels; the underwater depth of the vehicle wheels can be controlled by adjusting a variable water level device to enable the pedaling surfaces of the vehicle wheels to have hardness layers with a certain depth; the rotating speeds of the vehicle wheels can be adjusted to control the required cooling speed to guarantee the temperature condition required by the formation of bainite structures and enable the pedaling surfaces of the vehicle wheels to generate uniform bainite structures. The technical device has the advantages of scientific design, uniform hardness, low hardness gradient of hardened layers and deep depth, and satisfies the requirements of the hardened layers of the partial depth of the components.
Description
Technical field: the present invention relates to a kind of wheel rotary quenching process method and device in the component of machine thermal treatment process technology field.
Background technology: at present, quench wheel adopts thermal treatment process such as integral quenching, induction quenching, flame quenching at present usually.Integral quenching makes that the wheel integral hardness is higher, fragility is bigger, is out of shape wayward.Some practical productions of incompatibility, it is more shallow that surface heats such as induction quenching, flame quenching are handled the hardened-depth that obtains, and Hardness Distribution is steeper, can not satisfy the application request of wheel fully.Therefore develop a kind of wheel rotary quenching process method and device is new problem anxious to be solved both at home and abroad always.
Summary of the invention: the object of the present invention is achieved like this: wheel rotary quenching process method and device, the wheel rotary quenching process is, the wheel of different size specification will carry out the water level sign before heating, perform mark in required elevation of water surface position, in the catch basin of variable water gauge, deposit the corresponding water yield then in, guarantee to make water level to reach the height of institute's mark rapidly; Wheel is heated to austenitic temperature Ac
3After+30～50 ℃ of also abundant insulations, it is hung at the active arbor wheel of wheel spin hardening device and above the driven roll, the control of conversion speed regulation device make initiatively, and arbor wheel drive wheel rotates, reach certain rotating speed, adjust water level by variable water gauge then, allow water level reach predetermined height rapidly wheel is rotated quenching, then open the water-jet valve, water is injected on the wheel tread equably; Adjust variable water gauge and can control the wheel underwater penetration, make wheel tread obtain the rigidity layer of certain depth, adjust the then speed of cooling of may command requirement of wheel rotation rotating speed, the temperature difference of wheel center position and wheel tread makes heat constantly conduct to tread, guarantee that bainite structure forms required temperature condition, make wheel tread generate uniform bainite structure; Wheel spin hardening device mainly comprises equipment such as variable water gauge, active arbor wheel, driven roll, RHVC, water-jet, wheel be placed in initiatively arbor wheel and driven roll above, by the rotation of main drive shaft wheel drive wheel, and possesses RHVC kinetic energy; Variable water gauge can make wheel immerse certain degree of depth in the water; In quenching process, directly spray water to wheel tread with water-jet; Wheel spin hardening device supports a plurality of wheels to quench simultaneously, is 1～3.
Main points of the present invention are its structure and principle of work.Its principle of work is, the wheel rotary quenching process will satisfy the hardened layer requirement of parts locally and designated depth, adjust variable water gauge and can control the wheel underwater penetration, make wheel tread obtain the rigidity layer of certain depth, adjust the then speed of cooling of may command requirement of wheel rotation rotating speed, the temperature difference of wheel center position and wheel tread makes heat constantly conduct to tread, guarantees that bainite structure forms required temperature condition, makes wheel tread generate uniform bainite structure.Wheel rotary quenching process method and device are compared with prior art, has the design science, technology is easy to manufacture, device structure is simple, can satisfy the hardened layer requirement of parts locally and designated depth, be that integral quenching is beyond one's reach, with respect to quenching technology for surfaces, its hardness is more even, the hardened layer hardness gradient is less, the degree of depth is darker, it is a kind of very superior and practical thermal treatment process, whole quenching technology process operation is easy, control flexibly, can satisfy the requirement of wheel rotary quenching process preferably, improved quality product, the distribution of hardness is milder, it is fast to have overcome the hard surfacing rate of heating, quench-hardened case is shallow, the shortcoming that the Hardness Distribution gradient is steeper, make the part overall performance reach advantages such as higher level, will be widely used in the component of machine thermal treatment process technology field.
Description of drawings: concrete structure of the present invention is provided by following examples and accompanying drawing thereof.
Fig. 1 is a wheel spin hardening apparatus structure synoptic diagram of the present invention.
Fig. 2 is a wheel rotary quenching process graphic representation of the present invention.
Fig. 3 is a wheel spin hardening quench-hardened case scatter chart of the present invention.
Embodiment:
Embodiment one, selects the 35T driving wheel, material 65Mn, and specification φ 530 * 115, surface hardness 300-350HB, hardened-depth 〉=13mm; Select heating installation, the wheel of specification is carried out water level indicator know before heating, perform mark in required elevation of water surface position, the water that deposits in the catch basin of variable water gauge guarantees to make water level to reach the height of institute's mark rapidly then; Wheel is heated to austenitic temperature Ac
3After+30～50 ℃ of also abundant insulations, it is hung at the active arbor wheel of wheel spin hardening device and above the driven roll, the control of conversion speed regulation device make initiatively, and arbor wheel drive wheel rotates, reach certain rotating speed, adjust water level by variable water gauge then, allow water level reach predetermined height rapidly wheel is rotated quenching, then open the water-jet valve, water is injected on the wheel tread equably; Adjust variable water gauge and can control the wheel underwater penetration, make wheel tread obtain rigidity layer, adjust the then speed of cooling of may command requirement of wheel rotation rotating speed, the temperature difference of wheel center position and wheel tread makes heat constantly conduct to tread, guarantee that bainite structure forms required temperature condition, make wheel tread generate uniform bainite structure; Cool time decides according to wheel diameters, continues 10～30 minutes approximately.
Embodiment two, select the 40T driving wheel, material 65Mn, and specification φ 540 * 125, surface hardness 320-360HB, hardened-depth 〉=15mm; Select heating installation, temperature control and furnace temperature recording meter are arranged, temperature-controlled precision is ± 10 ℃ in the time of 450 ℃, 850 ℃; The spin hardening device makes the wheel can reliable and stable standing on the carrying roller, and can steadily rotate, and speed range is at 40-60rpm, stepless speed regulation.And have a device of two continuous spraying functions; Frock adopts general lifting tooling; Check and correction test specimen sign before the shove charge, errorless back are at tread place brushing antioxidizing paint, and natural airing fed to boiler heating is in the optional 75KW car type furnace of heating installation or other the suitable stove.Heating temperature and time carry out by technology.Before quenching the water level of swivel arrangement is adjusted, the preceding water level 10mm under the vehicle wheel limit that promptly quenches, water level 40mm on wheel limit during quenching adjusts the water level of water tank simultaneously; Rapidly wheel is put into during quenching on the spin hardening device middle idler roller, rotating-wheel, rotating speed are controlled at the water tank flashboard of leaving behind rapidly after the 45-50rpm, and about 10-15 gives last water spray again after second, and adjustment constantly, guarantees required water level; The back inspection trolley wheel tread hardness of quenching is answered 〉=50HRC; Temper number is 320-360HB, hardened-depth 〉=15mm.
Embodiment three, wheel spin hardening device mainly comprises equipment such as variable water gauge 1, active arbor wheel 2, driven roll 3, RHVC 4, water-jet 5, wheel is placed in initiatively, and arbor wheel 2 drives the wheel rotation by active arbor wheel 2, and possesses RHVC 4 kinetic energy with above the driven roll 3; Variable water gauge 1 can make wheel immerse certain degree of depth in the water; In quenching process, directly spray water to wheel tread with water-jet 5; Wheel spin hardening device supports a plurality of wheels to quench simultaneously, is 1～3.
Claims (2)
1, a kind of wheel rotary quenching process method, it is characterized in that: the wheel rotary quenching process is, the wheel of different size specification will carry out the water level sign before heating, perform mark in required elevation of water surface position, in the catch basin of variable water gauge, deposit the corresponding water yield then in, guarantee to make water level to reach the height of institute's mark rapidly; Wheel is heated to austenitic temperature Ac
3After+30～50 ℃ of also abundant insulations, it is hung at the active arbor wheel of wheel spin hardening device and above the driven roll, the control of conversion speed regulation device make initiatively, and arbor wheel drive wheel rotates, reach certain rotating speed, adjust water level by variable water gauge then, allow water level reach predetermined height rapidly wheel is rotated quenching, then open the water-jet valve, water is injected on the wheel tread equably; Adjust variable water gauge and can control the wheel underwater penetration, make wheel tread obtain the rigidity layer of certain depth, adjust the then speed of cooling of may command requirement of wheel rotation rotating speed, the temperature difference of wheel center position and wheel tread makes heat constantly conduct to tread, guarantee that bainite structure forms required temperature condition, make wheel tread generate uniform bainite structure; Cool time decides according to wheel diameters, continues 10～30 minutes approximately.
2, the device of a kind of wheel rotary quenching process method according to claim 1, it is characterized in that: said wheel spin hardening device mainly comprises equipment such as variable water gauge, active arbor wheel, driven roll, RHVC, water-jet, wheel be placed in initiatively arbor wheel and driven roll above, by the rotation of main drive shaft wheel drive wheel, and possesses RHVC kinetic energy; Variable water gauge can make wheel immerse certain degree of depth in the water; In quenching process, directly spray water to wheel tread with water-jet; Wheel spin hardening device supports a plurality of wheels to quench simultaneously, is 1～3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510046165 CN1289696C (en) | 2005-04-04 | 2005-04-04 | Wheel rotating quenching process and apparatus therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510046165 CN1289696C (en) | 2005-04-04 | 2005-04-04 | Wheel rotating quenching process and apparatus therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1667138A CN1667138A (en) | 2005-09-14 |
| CN1289696C true CN1289696C (en) | 2006-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200510046165 Expired - Fee Related CN1289696C (en) | 2005-04-04 | 2005-04-04 | Wheel rotating quenching process and apparatus therefor |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101270408B (en) * | 2008-03-04 | 2010-06-02 | 马鞍山钢铁股份有限公司 | Thermal treatment method for high-carbon steel train wheel circular rim surface and heat treatment apparatus |
| CN101255489B (en) * | 2008-03-04 | 2010-06-09 | 马鞍山钢铁股份有限公司 | Device for eliminating gas-cutting hardening layer of railway wheel sample and technical method |
| CN105586474A (en) * | 2016-01-27 | 2016-05-18 | 安徽三山机械制造有限公司 | Vertical quenching equipment for large-diameter wheel |
| CN112378167A (en) * | 2020-11-29 | 2021-02-19 | 湖南省品源机械制造有限公司 | Vehicle wheel hub cooling automatic control system |
| CN112575170A (en) * | 2020-11-29 | 2021-03-30 | 湖南省品源机械制造有限公司 | Vehicle wheel hub quenching cooling bearing system |
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- 2005-04-04 CN CN 200510046165 patent/CN1289696C/en not_active Expired - Fee Related
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Granted publication date: 20061213 Termination date: 20120404 |