CN201722406U - Thermal treating device for alloy steel products - Google Patents
Thermal treating device for alloy steel products Download PDFInfo
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- CN201722406U CN201722406U CN2010202125634U CN201020212563U CN201722406U CN 201722406 U CN201722406 U CN 201722406U CN 2010202125634 U CN2010202125634 U CN 2010202125634U CN 201020212563 U CN201020212563 U CN 201020212563U CN 201722406 U CN201722406 U CN 201722406U
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Abstract
The utility model relates to a thermal treating device for alloy steel products, comprising a thermal treating system and a conveying system for conveying and connecting alloy steel products in the thermal treating system, wherein the thermal treating system sequentially comprises a normalizing furnace, a hardening furnace and a tempering furnace along the conveying system, wherein the heating temperatures and the residence times of the normalizing furnace, the hardening furnace and the tempering furnace can be set; and the normalizing furnace, the hardening furnace or the tempering furnace is provided with a plurality of heating areas along the conveying system. The thermal treating device has the characteristics of simple equipment, convenient realization of higher degree of automation, convenient operation and low environmental pollution.
Description
Technical field
The utility model relates to a kind of device that the alloy product made from steel is heat-treated.
Background technology
Material, steel alloy for example, intensity, hardness, plasticity and toughness unity of contradictions body normally.Select rational alloying constituent and content to reach preferred alloy material, be the direction of making great efforts in the industry always.At a particular job requirement of Ship's Container lockset, selecting rational strength, hardness and plasticity and toughness material is exactly technical problem to be solved in this area.
Available technology adopting 42CrMo material and simultaneously in addition corresponding thermal treatment process are with the material as lockset.Wherein thermal treatment comprises:
One, normalizing: in the meshbeltfurnace, 900 ℃ ± 10 ℃ of normalizing temperatures, soaking time air cooling after 120 minutes;
Two, quench: in the meshbeltfurnace, 890 ℃ ± 10 ℃ of quenching temperatures, soaking time oil cooling after 120 minutes;
Three, tempering: in the meshbeltfurnace, 630 ℃ ± 10 ℃ of tempering temperatures, soaking time water cooling after 180 minutes.
But material of the prior art and corresponding thermal treatment process thereof still have deficiency.For example, what current material 42CrMo adopted is the steel alloy with noble metal, and its material cost is higher; Simultaneously, in the heat treatment process, after particularly quenching, its bent crystal martensite volume begins to increase, and plasticity, toughness are relatively poor; Moreover the technology in the thermal treatment is comparatively complicated, the high while thermal treatment of cost easily produces more environmental pollution.Above technical problem all remains new technology it is solved.
The utility model content
For solving the problems of the technologies described above, the utility model provides a kind of thermal treatment unit of novel alloy product made from steel.Wherein said steel alloy product material is 25CrMnSi.Its thermal treatment unit comprises: heat treatment system with described steel alloy is transported the haulage system that is connected between described heat treatment system, described heat treatment system has successively along described haulage system: normalizing furnace, quenching furnance, the tempering stove that can set the Heating temperature and the residence time; Described normalizing furnace, quenching furnance or tempering stove are provided with a plurality of heating zone along described haulage system.
As further improvement, also comprise the upper control unit that links to each other with haulage system with heat treatment system.
In addition, on described normalizing furnace, quenching furnance, tempering stove or quenching tank, also be provided with and detect described steel alloy product time device and temperature device therein, described device can send data signal to described upper control unit; The data signal that described upper control unit can send according to described time and temperature device sends control signal to described heat treatment system and haulage system, adjusts temperature and the residence time of described steel alloy product in stove.
Above-mentioned thermal processing equipment is simple, be convenient to realize higher level of automation, little characteristics of environmental pollution in easy to operate, the heat treatment process simultaneously, also guaranteed the advantage in the environmental protection, is suitable for making handling high strength, high-ductility alloy steel.
Description of drawings
Fig. 1 is the synoptic diagram of this thermal treatment unit.
Embodiment
For solving the problems of the technologies described above, the utility model provides a kind of thermal treatment unit of novel steel alloy product.Wherein said material is 25CrMnSi.This material has been avoided the comparatively use of expensive alloyed metal element of the prior art, makes the metal cost reduce.Simultaneously, present technique 25CrMnSi quenches the back tissue based on martensite as soft steel (carbon content is smaller or equal to 0.30%), low alloy steel, can guarantee to possess high-ductility, toughness simultaneously under the prerequisite of intensity with prior art and hardness.And the carbon content of the 42CrMo of prior art is greater than 0.30%, and after quenching, bent crystal martensite volume begins to increase, and plasticity, toughness are relatively poor under identical intensity, stiffness conditions.Therefore the use of present technique 25CrMnSi material had both guaranteed the requirement of mechanical property, had also reached reduction metal cost, and the purpose of subsequent heat treatment cost.
What this creation provided comprises with the corresponding thermal treatment process of above-mentioned technology steel alloy product material 25CrMnSi:
One, normalizing: in the producer gas generator, 920 ℃ ± 10 ℃ of temperature, soaking time air cooling after 120 minutes;
Two, quench: in the meshbeltfurnace, 880 ℃ ± 10 ℃ of temperature, soaking time water cooling after 180 minutes;
Three, tempering: in the pit furnace, air cooling is but after 180 minutes for 610 ℃ ± 10 ℃ of temperature, soaking time.
Corresponding, the utility model provides a kind of thermal treatment unit of steel alloy product, it comprises: heat treatment system with described steel alloy product is transported the haulage system that is connected between described heat treatment system, described heat treatment system has successively along described haulage system: normalizing furnace, quenching furnance, the tempering stove that can set the Heating temperature and the residence time; Described normalizing furnace, quenching furnance or tempering stove are provided with a plurality of heating zone along described haulage system.
As shown in Figure 1, thermal treatment unit comprises in an embodiment:
1, normalizing furnace 1: temperature can be set as 920 ℃ ± 10 ℃, and the residence time can be set as 120 minutes normalizing furnace 1.
During normalizing, place temperature to be lower than 100 ± 10 ℃ 1 li of normalizing furnace steel alloy product 8, be warmed up to 920 ℃ ± 10 ℃, be incubated 120 minutes, when temperature is lower than 600 ℃, come out of the stove, place the first air cooling place I then, carry out the air cooling first time;
Preferred normalizing furnace is divided into 7 heating zone, and each Heating Zone Temperature is set at 920 ℃ ± 10 ℃.Steel alloy product 8 workpiece that a plurality of sizes that are prefabricated into normalizing furnace 1 adapt are according to batch by above-mentioned 7 heating zone, and be heated intensification, and successive is incubated in above-mentioned 7 heating zone successively, so that steel alloy product 8 obtains the soaking time of useful length in normalizing furnace.Heating zone quantity also can be other quantity, its determine according to one of be to adapt time with the required heating of workpiece, to guarantee the requirement that adds heat request and large scale continuous prod of workpiece.
For reaching the purpose of automatic production and more effective control normalizing operation, in 7 above-mentioned heating zone, can be provided with temperature monitoring apparatus 9 simultaneously, with demonstration, record and the remote reporting of realization temperature, and the further timely adjustment that realizes the normalizing furnace temperature.Preferably, one, two, three, four, the slender acanthopanax hot-zone adopts the TCW-32A three phase voltage regulating, six or seven districts are with digital displaying meter temperature indicating degree, and each is distinguished all EL-100-60 multipoint recorder displayed record temperature.Steel alloy product 8 is come out of the stove after 120 minutes in insulation, places the first air cooling place I then, carries out the air cooling first time.
2, quenching furnance 2 and quenching tank 7: described quenching stove is: 880 ℃ ± 10 ℃ of temperature, soaking time 180 minutes.Preferably, temperature can be set as 550 ± 10 ℃ and 880 ± 10 ℃, and the corresponding residence time can be set as the quenching furnance 2 of 60 ± 5 minutes and 120 ± 5 minutes; Cooling back product temperature is made as 300 ℃, and being equipped with heat-eliminating medium is the quenching tank 7 of water-soluble quenching liquid 3.
During quenching, place temperature to be lower than in 100 ± 10 ℃ the quenching furnance aforementioned through the steel alloy product 8 of air cooling for the first time, then temperature raise and be controlled at be incubated 60 ± 5 minutes in 550 ± 10 ℃ the quenching furnance 2 after, continue to be warmed up to 880 ± 10 ℃ then, be incubated 120 ± 5 minutes.Taking-up places quenching tank 7 to quench, and heat-eliminating medium is a water-soluble quenching liquid 3, and steel alloy product 8 cold causing are then transported quenching tank 7 about 300 ℃.
Preferred quenching furnance is made up of 5 heating zone, and each Heating Zone Temperature controls to 550 ± 10 ℃ and 880 ± 10 ℃.The corresponding residence time of workpiece is inserted quenching tank 7 after can being set as 60 ± 5 minutes and 120 ± 5 minutes automatically, quenches.Can be provided with temperature monitoring apparatus 9 in each heating zone, with demonstration, record and the remote reporting of realization temperature, and the further timely adjustment that realizes the quenching furnance temperature.Preferably, each heating zone can be provided with the master control of digital display intelligent temperature controller, multipoint recorder centralized recording and monitoring.In addition, heating zone quantity also can be other quantity, its determine according to one of be to adapt time with the required heating of workpiece, to guarantee the requirement that adds heat request and large scale continuous prod of workpiece.
The heat-eliminating medium that adopts that quenches is a water-soluble quenching liquid 3.Preferably be furnished with PVA10%, three hexanol amine 1%, phenylformic acid receives 0.2%, the water-soluble quenching liquid of alizarin assistant 0.2%.For realizing further automatic production, the quenchant system 5 that is connected with quenching tank 7 can adopt has the higher systemic circulation form of automatic capability, and is furnished with special agitating function, guarantees supplying with stable continuously of hardening liquid.Temperature before hardening liquid 3 quenches can be normal temps, for example below 30 degree.Steel alloy product 8 in hardening liquid 3 residence time 8-25 minute, detect the cooling temperature of workpiece by the temperature monitoring apparatus in the quenching tank 79, cause about 300 ℃ when workpiece is cold, by quenching tank 7 lift travelling belts workpiece is sent quenching tank 7 to area I I place then, carry out temper then.
3, tempering stove 4: temperature can be set as 610 ± 10 ℃, and the residence time can be set as 180 minutes tempering stove 4.
During tempering, place temperature to be lower than 50 ± 10 ℃ 4 li of tempering stoves through the steel alloy product 8 that quenches, be warmed up to 610 ± 10 ℃, be incubated taking-up in 180 minutes, place the second air cooling place III then, carry out air cooling aforementioned.
Preferred tempering stove: is made up of 5 heating zone, each Heating Zone Temperature is raised to 610 ± 10 ℃, be incubated the air cooling that carries out of taking-up in 180 minutes.The quantity of heating zone can be selected other quantity equally for these reasons, and each heating zone can be provided with the master control of digital display intelligent temperature controller, the multipoint recorder centralized recording is also monitored equitemperature watch-dog 9, to realize demonstration, record and the remote reporting of temperature.
4, haulage system: it transports connection with described steel alloy product between described heat treatment system, to realize the thermal treatment process of described steel alloy product.
It comprises as the lower section: as described in will coming from normalizing furnace 1 as described in steel alloy product 8 be transported to the first air cooling place I, be transported to the first transportation equipment A of described quenching furnance 2 again; To come from the described described steel alloy product 8 that moves back quenching furnance 2 and be transported to described quenching tank 7 coolings, be transported to the second transportation equipment B at area I I place again; Described steel alloy product 8 is transported to described tempering stove 4, is transported to the 3rd transportation equipment C of the second air cooling place III again.For example adopt lifting rig, conveying belt isoline transportation equipment etc.
In addition, this Equipment for Heating Processing also is furnished with the described steel alloy product of detection in the above-mentioned zone that needs the time to control and rests on the timing device 10 of time in the above-mentioned stove, and can realize demonstration, record and the remote reporting of time, is convenient to the increasingly automated of whole production.
As further improving; also has upper control unit 6 in this Equipment for Heating Processing; normalizing furnace 1 in the native system; quenching furnance 2 and quenching tank 7; quenchant system 5; tempering stove 4 and haulage system can be respectively or wired or wireless 11 the form passed through simultaneously be connected with upper control unit 6; so that upper control unit 6 can obtain the data signal that timing device 10 in the native system and temperature monitoring apparatus 9 send; and in time adjust the temperature and the residence time in the stove; and control haulage system matches with it and in time transports, and realizes that finally the system of extensiveization of total system controls automatically.
From the introduction of above-mentioned thermal treatment process and equipment thereof as can be known, in the normalizing stage, adopted the normalizing temperature that is higher than prior art 42CrMo at present technique 25CrMnSi, its effective result changes foundry goods internal tree dendrite, crystal grain thinning, the mechanical property of comparatively being improved.
In present technique, quench simultaneously adopt water-cooled, tempering air cooling these not only prior art costs are low relatively, also farthest avoided environmental pollution simultaneously, simultaneously corresponding treating processes simple optimizing, equipment cost are low.Above-mentioned Equipment for Heating Processing has: automatically the degree height, be convenient to its whole process is carried out long-range and on-the-spot process control, guaranteed that the described steel alloy product that carries out smoothly, makes of thermal treatment process reaches required mechanical property, pollutes characteristics such as little.
Adopt the material that is obtained after the above-mentioned technology, its tensile strength satisfies: 850MPa, yield strength satisfies: 700MPa, hardness HB:240-280, when the machinery that satisfies the lockset material requires, have low, the good proper intensity of metal cost, hardness, plasticity and toughness and thermal processing equipment is simple, easy to operate, environmental pollution is little characteristics.
The embodiment that is disclosed in the utility model will obtain embodying and protection by claim, and will be any according to resulting enlightenment in the utility model, all fall among the scope that the utility model protects.
Claims (4)
1. the thermal treatment unit of a steel alloy product, it is characterized in that, comprise: heat treatment system with described steel alloy product is transported the haulage system that is connected between described heat treatment system, described heat treatment system has successively along described haulage system: normalizing furnace, quenching furnance, the tempering stove that can set the Heating temperature and the residence time; Described normalizing furnace, quenching furnance or tempering stove are provided with a plurality of heating zone along described haulage system.
2. according to the thermal treatment unit of the described steel alloy product of claim 1, it is characterized in that: the heating zone of described normalizing furnace is seven, and the heating zone of described quenching furnance is that the heating zone of five or described tempering stove is five.
3. according to the thermal treatment unit of the described steel alloy product of claim 1, it is characterized in that: also comprise the upper control unit that links to each other with haulage system with heat treatment system.
4. according to the thermal treatment unit of the described steel alloy product of claim 1, it is characterized in that: on described normalizing furnace, quenching furnance, tempering stove or quenching tank, also be provided with and detect described steel alloy product time device and temperature device therein, described device can send data signal to described upper control unit; The data signal that described upper control unit can send according to described time and temperature device sends control signal to described heat treatment system and haulage system, adjusts temperature and the residence time of described steel alloy product in stove.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202125634U CN201722406U (en) | 2010-05-31 | 2010-05-31 | Thermal treating device for alloy steel products |
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|---|---|---|---|
| CN2010202125634U CN201722406U (en) | 2010-05-31 | 2010-05-31 | Thermal treating device for alloy steel products |
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| CN201722406U true CN201722406U (en) | 2011-01-26 |
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| CN2010202125634U Expired - Fee Related CN201722406U (en) | 2010-05-31 | 2010-05-31 | Thermal treating device for alloy steel products |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251079A (en) * | 2011-07-11 | 2011-11-23 | 温州市开诚机械有限公司 | Water-quenching-and-tempering heat treatment process for high-temperature high-pressure low-alloy steel casting for turbine |
| WO2013037116A1 (en) * | 2011-09-15 | 2013-03-21 | 长沙中联重工科技发展股份有限公司 | Alloy steel for casting crawler plate, crawler plate and manufacturing method thereof and engineering machinery |
-
2010
- 2010-05-31 CN CN2010202125634U patent/CN201722406U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251079A (en) * | 2011-07-11 | 2011-11-23 | 温州市开诚机械有限公司 | Water-quenching-and-tempering heat treatment process for high-temperature high-pressure low-alloy steel casting for turbine |
| WO2013037116A1 (en) * | 2011-09-15 | 2013-03-21 | 长沙中联重工科技发展股份有限公司 | Alloy steel for casting crawler plate, crawler plate and manufacturing method thereof and engineering machinery |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20130531 |