CN108611471A - 20MnCr5 incudes normalizing process - Google Patents
20MnCr5 incudes normalizing process Download PDFInfo
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- CN108611471A CN108611471A CN201810743857.0A CN201810743857A CN108611471A CN 108611471 A CN108611471 A CN 108611471A CN 201810743857 A CN201810743857 A CN 201810743857A CN 108611471 A CN108611471 A CN 108611471A
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- rod iron
- isothermal
- temperature
- 20mncr5
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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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/28—Normalising
-
- 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
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/002—Heat treatment of ferrous alloys containing Cr
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
-
- 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
- C21D9/0075—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rods of limited length
-
- 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 present invention relates to rod iron technical field of heat treatment, incude normalizing process in particular to 20MnCr5.20MnCr5 induction normalizing process includes the following steps：Rod iron, which is sent in induction heater, to be heated to 770-790 DEG C and is kept the temperature；It is rotated by roller and rod iron is sent in controlling temp type air cooling device, fan delivery is controlled in 30-35m3Between/h, air-cooled rear rod iron temperature control is in 290-310 degree；Rod iron is sent to high tempering isothermal heater and carries out induction tempering after cooling down, rod iron is heated to 750-790 DEG C；After air-cooled to rod iron progress, rod iron is transmitted cold bed by roller rotation, carries out natural cooling.Rod iron following process that treated deformation is micro-, and obtained hardness, even tissue improves pretreated quality.Solve the problems, such as that rod iron the pre-heat treatment hardness dispersion degree is big, metallographic structure is uneven, mechanical property is inconsistent, deformation is big, Lathe quantity is big.
Description
Technical field
The present invention relates to rod iron technical field of heat treatment, incude normalizing process in particular to 20MnCr5.
Background technology
Traditional heat treatment heating means and cooling means, the hardness of material, metallographic structure, mechanical property after production, respectively
Item performance indicator dispersion degree is big and deformation is difficult to control, therefore the unstable quality of heat treatment, after material need to be straightened correction after deformation
Turning again needs increase alignment correction, raw material to reserve size quantity and cause Lathe quantity big greatly, increases manpower and materials cost and original
The waste of material.
In the prior art, the 20MnCr5 rod irons produced by the prior art deform seriously in post-processing.
Therefore it provides a kind of thermal effectiveness it is good 20MnCr5 induction normalizing process wanted as those skilled in the art
The important technological problems of solution.
Invention content
The purpose of the present invention is to provide a kind of 20MnCr5 to incude normalizing process, is imitated with alleviating heat treatment in the prior art
The technical problem of fruit difference.
An embodiment of the present invention provides a kind of 20MnCr5 to incude normalizing process, includes the following steps：
By feeder feeding, rod iron is sent in induction heater by roller rotation and is heated to 770-790 DEG C simultaneously
It is kept the temperature；
It is rotated by roller and rod iron is sent in controlling temp type air cooling device, while roller rotation sends out rod iron
Outside air-cooled temperature control segmented cooling device, fan delivery is controlled in 30-35m3Between/h, air-cooled rear rod iron temperature control exists
290-310 degree；
Rod iron is sent to high tempering isothermal heater and carries out induction tempering after cooling down, rod iron is heated to 750-
790℃；
After air-cooled to rod iron progress, rod iron is transmitted cold bed by roller rotation, carries out natural cooling.
An embodiment of the present invention provides the first possible embodiments, wherein above-mentioned induction heater includes multiple senses
Answer heating zone, multiple sensing heating area series connection.
An embodiment of the present invention provides the first possible embodiments, wherein above-mentioned sensing heating area includes that induction adds
A hot area, 4th area of 2nd area of sensing heating, 3rd area of sensing heating and sensing heating；
Wherein, one area's temperature of sensing heating is 780 DEG C, 3rd area of sensing heating no more than 720 DEG C, two area's temperature of sensing heating
Temperature is 780 DEG C, four area's temperature of sensing heating is 780 DEG C.
An embodiment of the present invention provides the first possible embodiments, wherein one area's temperature of above-mentioned sensing heating exists
Between 680-720 DEG C.
An embodiment of the present invention provides the first possible embodiments, wherein above-mentioned high tempering isothermal heater packet
Include multiple isothermal heating zones, multiple isothermal heating zone series connection.
An embodiment of the present invention provides the first possible embodiments, wherein above-mentioned isothermal heating zone includes that isothermal adds
2nd area are heated in a hot area, isothermal, isothermal heats 3rd area, isothermal heats 4th area and isothermal heats 5th area；
Wherein, isothermal heats area's temperature and heats two area's temperature no more than 780 DEG C, isothermal as 780 DEG C, 3rd area of isothermal heating
Temperature is 780 DEG C, isothermal four area's temperature of heating are 780 DEG C, isothermal five area's temperature of heating are 780 DEG C.
An embodiment of the present invention provides the first possible embodiments, wherein above-mentioned isothermal heats area's temperature and exists
Between 740-780 DEG C.
An embodiment of the present invention provides the first possible embodiments, wherein the above-mentioned rod iron moment is in rotation status.
An embodiment of the present invention provides the first possible embodiments, wherein the rotary speed of above-mentioned rod iron is in 100-
150r/min。
An embodiment of the present invention provides the first possible embodiments, wherein the hardness of above-mentioned rod iron is in 144-
Between 167HB.
Advantageous effect：
An embodiment of the present invention provides a kind of 20MnCr5 to incude normalizing process, includes the following steps：By on feeder
Material is sent to rod iron in induction heater by roller rotation and is heated to 770-790 DEG C and is kept the temperature；It is revolved by roller
Handle rod iron is sent in controlling temp type air cooling device, while rod iron is sent out air-cooled temperature control segmented and cooled down by roller rotation
Outside device, fan delivery is controlled in 30-35m3Between/h, air-cooled rear rod iron temperature control is in 290-310 degree；Rod iron cooling knot
It is sent to high tempering isothermal heater after beam and carries out induction tempering, rod iron is heated to 750-790 DEG C；To rod iron into sector-style
After cold, rod iron is transmitted cold bed by roller rotation, carries out natural cooling.Rod iron following process that treated deformation is micro-, and what is obtained is hard
Degree, even tissue, improve pretreated quality.Solution rod iron the pre-heat treatment hardness dispersion degree is big, metallographic structure is uneven, mechanics
The problem that performance is inconsistent, deformation is big, Lathe quantity is big.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and is obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the cooling characteristics C curve that 20MnCr5 provided in an embodiment of the present invention incudes 20MnCr5 in normalizing process.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
The present invention is described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.
With reference to shown in figure 1：
An embodiment of the present invention provides a kind of 20MnCr5 to incude normalizing process, includes the following steps：By on feeder
Material is sent to rod iron in induction heater by roller rotation and is heated to 770-790 DEG C and is kept the temperature；It is revolved by roller
Handle rod iron is sent in controlling temp type air cooling device, while rod iron is sent out air-cooled temperature control segmented and cooled down by roller rotation
Outside device, fan delivery is controlled in 30-35m3Between/h, air-cooled rear rod iron temperature control is in 290-310 degree；Rod iron cooling knot
It is sent to high tempering isothermal heater after beam and carries out induction tempering, rod iron is heated to 750-790 DEG C；To rod iron into sector-style
After cold, rod iron is transmitted cold bed by roller rotation, carries out natural cooling.
An embodiment of the present invention provides a kind of 20MnCr5 to incude normalizing process, includes the following steps：By on feeder
Material is sent to rod iron in induction heater by roller rotation and is heated to 770-790 DEG C and is kept the temperature；It is revolved by roller
Handle rod iron is sent in controlling temp type air cooling device, while rod iron is sent out air-cooled temperature control segmented and cooled down by roller rotation
Outside device, fan delivery is controlled in 30-35m3Between/h, air-cooled rear rod iron temperature control is in 290-310 degree；Rod iron cooling knot
It is sent to high tempering isothermal heater after beam and carries out induction tempering, rod iron is heated to 750-790 DEG C；To rod iron into sector-style
After cold, rod iron is transmitted cold bed by roller rotation, carries out natural cooling.Rod iron following process that treated deformation is micro-, and what is obtained is hard
Degree, even tissue, improve pretreated quality.Solution rod iron the pre-heat treatment hardness dispersion degree is big, metallographic structure is uneven, mechanics
The problem that performance is inconsistent, deformation is big, Lathe quantity is big.
Wherein, when being cooled down after rod iron normalizing, cooling component can carry out rod iron 360 degree of coolings, make rod iron
Cooling is more uniform, improves rod iron metallographic quality after cooling.
Specifically, air-cooled temperature control segmented cooling device includes the cooling air blast of 360 ° of quenchings and the cooling jet of 180 ° of quenchings
Device, 360 ° of cooling air blasts of quenching include toroidal frame ontology and the first nozzle, and toroidal frame body interior is provided with puff prot, and first
Nozzle and puff prot coordinate, and the first jet thrust connect with high-pressure gas box, and the first nozzle can be by high pressure gas injection spray when work
Gas port, the multiple puff prots being then arranged in toroidal frame inner body wall carry out quenching cooling with 360 degree of direction to rod iron ontology,
Reach quenching non-blind area, no soft spots, without soft band.
Wherein, the axis extended line of puff prot passes through the axle center of rod iron ontology, it is ensured that the cooling air of ejection can be to rod iron
Ontology carries out cooling operations.
Moreover, being provided with the cooling air blast of semicircle quenching and the cooling jet of 180 ° of quenchings after the cooling air blast of 360 ° of quenchings
Device, the cooling air blast of 360 ° of quenchings carry out quenching cooling to rod iron ontology, then quench cooling air blast to steel by semicircle
Stick ontology carries out acceleration cooling, carries out cooling holding to rod iron ontology finally by the cooling air blast of 180 ° of quenchings, it is ensured that rod iron
The quenched Light deformation of ontology is bent indeformable effect after reaching quenching, is convenient for following process and final mass.
It should be pointed out that by 360 ° of quenching coolings to single rod iron ontology, make its hardness, metallographic structure, mechanics
Performance is uniform, and scattered error is small.
It needs to keep rotating during, it is noted that rod iron ontology is in advance, to ensure the uniform of quenching.
Wherein, the spray face of the cooling air blast of 360 ° of quenchings is rounded, is carried out to rod iron ontology comprehensively uniformly cooling.
In the alternative of the present embodiment, induction heater includes multiple sensing heating areas, multiple sensing heating area series connection.
In the alternative of the present embodiment, sensing heating area includes one area of sensing heating, 2nd area of sensing heating, sensing heating
4th area of 3rd area and sensing heating；Wherein, one area's temperature of sensing heating no more than 720 DEG C, two area's temperature of sensing heating be 780 DEG C,
Three area's temperature of sensing heating is 780 DEG C, four area's temperature of sensing heating is 780 DEG C.
In the alternative of the present embodiment, one area's temperature of sensing heating is between 680-720 DEG C.
Specifically, multiple sensing heating areas are stitched together to form induction normalizing line, rod iron enters from one end, from the other end
Discharge completes normalizing of the rod iron in induction normalizing line by controlling the speed of rod iron, convenient and efficient.Wherein, multiple senses
Answer normalizing furnace be stitched together the induction normalizing line length to be formed be 60 meters.
Wherein, the control of rod iron transmission speed is in 2-3m/min.
In the alternative of the present embodiment, high tempering isothermal heater includes multiple isothermal heating zones, and multiple isothermals add
It connects hot-zone.
In the alternative of the present embodiment, isothermal heating zone includes that isothermal heats an area, isothermal heats 2nd area, isothermal heating
4th area are heated in 3rd area, isothermal and isothermal heats 5th area；Wherein, isothermal heats area's temperature and heats 2nd area no more than 780 DEG C, isothermal
Temperature is 780 DEG C, isothermal three area's temperature of heating are 780 DEG C, isothermal four area's temperature of heating are 780 DEG C, isothermal heats five area's temperature
It is 780 DEG C.
In the alternative of the present embodiment, isothermal heats area's temperature between 740-780 DEG C.
In the alternative of the present embodiment, the rod iron moment is in rotation status.
In the alternative of the present embodiment, the rotary speed of rod iron is in 100-150r/min.
In the alternative of the present embodiment, the hardness of rod iron is between 144-167HB.
The heat treatment procedure of the present embodiment rod iron is as follows：
The first step heats the material to 30-50 DEG C of Ac1 temperatures above by incuding normalizing heating equipment
Second step：Feeder feeding is sent to rod iron in inductor by roller rotation and heats austenitizing heat preservation；Steel
Stick is sent to one area≤720 DEG C of sensing heating, 780 DEG C of 2nd area, 780 DEG C of 3rd area, 780 DEG C of 4th area.
Third walks：It is rotated by roller and rod iron is sent in air-cooled temperature control segmented cooling device, while roller rotates
Rod iron is sent out outside air-cooled temperature control segmented cooling device, wind turbine cooling rate is controlled in 30HZ.
4th：Rod iron is sent to high tempering isothermal temperature and carries out induction tempering after cooling down, heat the material to
30-50 DEG C of Ac1 temperatures above；Heat area≤780 DEG C, 780 DEG C of 2nd area, 780 DEG C of 3rd area, 780 DEG C of 4th area, 780 DEG C of 5th area.
4th step：After air-cooled, rod iron is transmitted special cold bed mechanism by roller rotation, carries out natural cooling.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of 20MnCr5 incudes normalizing process, which is characterized in that include the following steps：
By feeder feeding, rod iron is sent in induction heater by roller rotation and is heated to 770-790 DEG C and carries out
Heat preservation；
Rotated by roller and rod iron be sent in controlling temp type air cooling device, at the same roller rotation rod iron is sent out it is air-cooled
Outside temperature control segmented cooling device, fan delivery is controlled in 30-35m3Between/h, air-cooled rear rod iron temperature control is in 290-
310 degree
Rod iron is sent to high tempering isothermal heater and carries out induction tempering after cooling down, rod iron is heated to 750-790
℃；
After air-cooled to rod iron progress, rod iron is transmitted to cold bed by roller rotation, carries out natural cooling.
2. 20MnCr5 according to claim 1 incudes normalizing process, which is characterized in that the induction heater includes more
A sensing heating area, multiple sensing heating area series connection.
3. 20MnCr5 according to claim 2 incudes normalizing process, which is characterized in that the sensing heating area includes sense
An area, 4th area of 2nd area of sensing heating, 3rd area of sensing heating and sensing heating should be heated；
Wherein, one area's temperature of sensing heating is 780 DEG C, three area's temperature of sensing heating no more than 720 DEG C, two area's temperature of sensing heating
For 780 DEG C, four area's temperature of sensing heating be 780 DEG C.
4. 20MnCr5 according to claim 3 incudes normalizing process, which is characterized in that one area's temperature of the sensing heating
Between 680-720 DEG C.
5. 20MnCr5 according to claim 1 incudes normalizing process, which is characterized in that the high tempering isothermal heating
Device includes multiple isothermal heating zones, multiple isothermal heating zone series connection.
6. 20MnCr5 according to claim 5 incudes normalizing process, which is characterized in that the isothermal heating zone includes etc.
2nd area are heated in one area of temperature heating, isothermal, isothermal heats 3rd area, isothermal heats 4th area and isothermal heats 5th area；
Wherein, isothermal heats area's temperature and heats two area's temperature no more than 780 DEG C, isothermal as 780 DEG C, isothermal three area's temperature of heating
For 780 DEG C, isothermal heat four area's temperature be 780 DEG C, isothermal heat five area's temperature be 780 DEG C.
7. 20MnCr5 according to claim 6 incudes normalizing process, which is characterized in that the isothermal heats area's temperature
Between 740-780 DEG C.
8. 20MnCr5 according to claim 1 incudes normalizing process, which is characterized in that the rod iron moment is in rotation
State.
9. 20MnCr5 according to claim 8 incudes normalizing process, which is characterized in that the rotary speed of the rod iron exists
100-150r/min.
10. incuding normalizing process according to claim 1-9 any one of them 20MnCr5, which is characterized in that the rod iron
Hardness is between 144-167HB.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810743857.0A CN108611471A (en) | 2018-07-06 | 2018-07-06 | 20MnCr5 incudes normalizing process |
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109182675A (en) * | 2018-11-12 | 2019-01-11 | 南京钢铁股份有限公司 | A kind of induction heating normalizing method of 38B3 round steel |
| CN110387458A (en) * | 2019-08-23 | 2019-10-29 | 郑州机械研究所有限公司 | A kind of motor turning piston afterheat normalizing technique |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202337798U (en) * | 2011-10-29 | 2012-07-18 | 洛阳炎龙工贸有限公司 | Automatic medium-frequency normalizing line |
| CN102773399A (en) * | 2012-07-12 | 2012-11-14 | 海盐三马标准件有限公司 | Machining process of engineering machinery crawler belt nut |
| CN203112895U (en) * | 2012-12-28 | 2013-08-07 | 西安奥邦科技有限责任公司 | Monitoring system of medium frequency heating and annealing PLC (Programmable Logic Controller) control upper computer of metal tube |
| CN103233101A (en) * | 2013-04-08 | 2013-08-07 | 浙江吉利汽车研究院有限公司杭州分公司 | GCr15 bearing steel heat treatment method |
| CN103421936A (en) * | 2013-05-10 | 2013-12-04 | 上海北特科技股份有限公司 | Induction heating quenching and tempering system |
| CN105734259A (en) * | 2014-12-09 | 2016-07-06 | 重庆市金升机械配件制造有限公司 | Heat treatment process for knuckle bearing |
| CN107385171A (en) * | 2017-09-21 | 2017-11-24 | 江苏南钢通恒特材科技有限公司 | Spray quenching device and rod iron production line |
-
2018
- 2018-07-06 CN CN201810743857.0A patent/CN108611471A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202337798U (en) * | 2011-10-29 | 2012-07-18 | 洛阳炎龙工贸有限公司 | Automatic medium-frequency normalizing line |
| CN102773399A (en) * | 2012-07-12 | 2012-11-14 | 海盐三马标准件有限公司 | Machining process of engineering machinery crawler belt nut |
| CN203112895U (en) * | 2012-12-28 | 2013-08-07 | 西安奥邦科技有限责任公司 | Monitoring system of medium frequency heating and annealing PLC (Programmable Logic Controller) control upper computer of metal tube |
| CN103233101A (en) * | 2013-04-08 | 2013-08-07 | 浙江吉利汽车研究院有限公司杭州分公司 | GCr15 bearing steel heat treatment method |
| CN103421936A (en) * | 2013-05-10 | 2013-12-04 | 上海北特科技股份有限公司 | Induction heating quenching and tempering system |
| CN105734259A (en) * | 2014-12-09 | 2016-07-06 | 重庆市金升机械配件制造有限公司 | Heat treatment process for knuckle bearing |
| CN107385171A (en) * | 2017-09-21 | 2017-11-24 | 江苏南钢通恒特材科技有限公司 | Spray quenching device and rod iron production line |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109182675A (en) * | 2018-11-12 | 2019-01-11 | 南京钢铁股份有限公司 | A kind of induction heating normalizing method of 38B3 round steel |
| CN110387458A (en) * | 2019-08-23 | 2019-10-29 | 郑州机械研究所有限公司 | A kind of motor turning piston afterheat normalizing technique |
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Application publication date: 20181002 |