CN115433813A - Quenching device for continuously heating internal spline for quenching machine tool - Google Patents
Quenching device for continuously heating internal spline for quenching machine tool Download PDFInfo
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- CN115433813A CN115433813A CN202111618924.4A CN202111618924A CN115433813A CN 115433813 A CN115433813 A CN 115433813A CN 202111618924 A CN202111618924 A CN 202111618924A CN 115433813 A CN115433813 A CN 115433813A
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- 238000010791 quenching Methods 0.000 title claims abstract description 93
- 230000000171 quenching effect Effects 0.000 title claims abstract description 91
- 238000010438 heat treatment Methods 0.000 title claims abstract description 83
- 238000005507 spraying Methods 0.000 claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000002826 coolant Substances 0.000 claims description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 16
- 229910052802 copper Inorganic materials 0.000 claims description 16
- 239000010949 copper Substances 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 14
- 238000003466 welding Methods 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 3
- 239000000110 cooling liquid Substances 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 3
- 230000006698 induction Effects 0.000 abstract description 25
- 238000000034 method Methods 0.000 description 22
- 230000008569 process Effects 0.000 description 21
- 238000001816 cooling Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000005672 electromagnetic field Effects 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 210000004222 sensilla Anatomy 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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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
- C21D1/62—Quenching devices
- C21D1/667—Quenching devices for spray quenching
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
-
- 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
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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 discloses a quenching device for continuously heating an internal spline for a quenching machine tool, and belongs to the technical field of induction heat treatment of artillery parts. The induction applying body comprises a connecting device and an induction applying body, wherein the connecting device comprises a transformer connecting plate, a water inlet pipe, a connecting pipe A and a water outlet pipe, the induction applying body comprises a connecting pipe B, a heating ring, a spraying ring and a connecting pipe C, and the back of an opening of the transformer connecting plate is welded with the right angle of the short edge of the connecting pipe A; the short edge end of the front side connecting pipe A is connected with a water inlet pipe, the short edge end of the rear side connecting pipe A is welded with a water outlet pipe, the long edge end of the connecting pipe A of the rear side connecting device is welded with a water outlet of the connecting pipe B, and the long edge end of the connecting pipe A of the front side connecting device is welded with a water inlet of the connecting pipe C; the water inlet of the connecting pipe B is welded with the heating ring, the water outlet of the connecting pipe C is welded with the spraying ring, and the spraying ring and the heating ring are mutually connected. The invention has the advantages of uniform and rapid heating, low heat loss and reduced operation risk.
Description
Technical Field
The invention relates to a quenching device for continuously heating an internal spline for a quenching machine tool, and belongs to the technical field of induction heat treatment of artillery parts.
Background
In a gun or other mechanical mechanisms, part of transmission parts are provided with an internal spline structure and are matched with a spline shaft for use, so that certain torsion force and friction force are borne in the working process, the workpiece is ensured to have better toughness in the core part, and meanwhile, the inner surface and the outer surface, particularly the spline part, need to have certain wear resistance, so that the hardness of the surface of the workpiece can be improved by selecting an internal spline induction quenching process. The induction heating quenching parts of the internal splines comprise parts with larger inner holes, longer splines and thinner wall thickness, the original production mode is one-time heating quenching, the inductor is bent into a spiral shape by adopting a round copper pipe, cooling water is introduced into the inductor to cool the inductor, the inductor is placed inside the part splines during quenching heating, the whole outer surfaces of the internal splines of the parts are simultaneously heated, and after the internal splines reach the metallographic structure transition temperature, the whole parts are rapidly transferred into a quenching medium groove to be cooled. Such workpieces are prone to the following problems during production: the heating area is large, the required power is high, and the equipment loss is large; the heating time is long, the deformation of the thin wall is easy to cause, the subsequent machining procedure needs to be added, the hardness after quenching is high, the machining is difficult, and the final size is not easy to ensure; the heating time is long, and due to the sharp angle effect of electromagnetic induction, the temperature at the sharp angle of the spline is high, so that an overheating over-burning tissue is easy to appear, and the poor use performance of the part can be caused; because the part is still, if the distance between the inner spline and the sensing body is not uniform after the part is placed, the heating temperature of different splines is not uniform, and the condition of uneven hardness occurs after quenching; after the induction heating is finished, if the speed of the induction heating is slightly slow when the induction heating enters the quenching liquid, the part is cooled more, and the temperature of the part is lower than the phase change temperature when the induction heating is immersed in the quenching liquid, so that the phenomenon that the quenching hardness requirement cannot be met can be caused, and certain requirements are met for the operation process.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the quenching device for continuously heating the internal spline of the quenching machine tool, which is suitable for continuous heating and quenching work of the internal spline part, has uniform and rapid heating, low heat loss, small thin-wall deformation and no overhigh temperature of a sharp corner, directly finishes the heating and quenching process, reduces the step of transferring the quenching and cooling of the internal spline part, and reduces the operation risk.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a quenching device of internal spline continuous heating for quenching machine tool, includes connecting device and the body of sensing of executing, and connecting device includes transformer connecting plate, inlet tube, connecting pipe A and outlet pipe again, and the body of sensing of executing includes connecting pipe B, heating ring, sprays circle and connecting pipe C again.
The two sets of connecting devices are symmetrically arranged, the back of an opening of the U-shaped transformer connecting plate is welded and connected with the right angle of the short edge of the L-shaped connecting pipe A, and the transformer connecting plate is a connecting part of the quenching device and an output transformer of machine tool equipment; the end of the short edge of the front side connecting pipe A is welded and connected with a water inlet pipe, the water inlet pipe is an input end of quenching device cooling liquid and is externally connected with a cooling medium, the end of the short edge of the rear side connecting pipe A is welded and connected with a water outlet pipe, the end of the long edge of the connecting pipe A of the rear side connecting device is welded and connected with a water outlet of the connecting pipe B, and the end of the long edge of the connecting pipe A of the front side connecting device is welded and connected with a water inlet of the connecting pipe C; the left side of a connecting pipe C of the sensing body is a Z-shaped pipe body, the right side of the connecting pipe C of the sensing body is a vertical pipe body, the left side of a connecting pipe B of the sensing body is also a Z-shaped pipe body, the right side of the connecting pipe B is an inclined pipe body, a water inlet of the connecting pipe B is connected with a heating ring in a welding mode, a water outlet of the connecting pipe C is connected with a spraying ring in a welding mode, and the spraying ring is connected with the heating ring in an interconnection mode.
A plurality of square spraying holes are formed in the outer side of the spraying ring, and the spraying holes are uniformly distributed and keep a horizontal direction of 45 degrees; the sensing bodies are all formed by bending red copper square pipes; the cooling medium is organic quenching liquid or inorganic quenching liquid.
In the using process, a transformer connecting plate of the quenching device is clamped on a quenching machine tool, a water pipe of a cooling medium is connected to a water inlet pipe of the device, then an internal spline part is fixed on a chuck of the quenching machine tool, and a spraying ring and a heating ring of an induction body of the quenching device are placed at the center of the bottom of the internal spline part to complete the fixation of the internal spline part; after the surface distance between the spraying ring and the heating ring of the sensing body of the device and the inner spline part is adjusted, the circulation of a cooling medium is started, the cooling medium enters from the water inlet pipe, flows through the front side connecting pipe A and the connecting pipe C and enters into the spraying ring, the spraying ring starts to spray through the spraying holes, the rotating speed of the inner spline part is set, the electrical parameters of the device are adjusted, the cooling medium rotates for a circle in the spraying ring and then enters into the heating ring from the spraying ring, flows out after rotating for a circle in the heating ring, flows through the connecting pipe B and the rear side connecting pipe A, and finally flows out from the water outlet pipe, the inner spline part rotates gradually and falls to be heated by the heating ring, the spraying ring sprays, quenches and cools until the spraying ring and the heating ring of the sensing body completely rise out from the inside of the inner spline part, the quenching process is completed, and the process parameters and the concentration of quenching liquid can be automatically adjusted.
The connecting pipes B and C are used for connecting the spraying ring, the heating ring and the connecting device of the inductor, and conducting current and cooling medium; the heating ring generates an alternating magnetic field to heat the internal spline part, the rotation of the internal spline part can ensure uniform heating, and the heating time of the internal spline part is controlled in the descending process; the connecting device consisting of the transformer connecting plate, the water inlet pipe, the connecting pipe A and the water outlet pipe plays a role in clamping and fixing the quenching device and transmitting current; the induction body consisting of the connecting pipe B, the heating ring, the spraying ring and the connecting pipe C generates an alternating magnetic field on the internal spline part through alternating current, induction heating and quenching cooling are carried out on the internal spline part, and the quenching process is completed by matching the rotation and descending of the internal spline part. Adopt heating, the quenching cooling novel processing mode who goes on in succession, reduced the volume of executing the sense body, the area of simultaneous heating is less, the efficiency of electromagnetic field is higher, it is very fast to heat to transition temperature's speed, and adopt the rotation of numerical control quenching lathe cooperation internal spline part, make the heating even and rapidly, the heat loss is low, the too high condition of temperature can not appear in the closed angle, and the thin wall warp for a short time, directly accomplish the heating quenching process, reduced the step of shifting the internal spline part quenching cooling, reduced the operational risk.
Because the principle of induction heat treatment is electromagnetic heating, in order to ensure that the quenching device is not inductively heated in the use process, the material of the quenching device is red copper, the influence on the device caused by an induction magnetic field can be prevented, the phenomenon of deformation of the device caused by heat generation is avoided, and the quenching device has better corrosion resistance. The quenching device is made of a red copper tube, and the traditional round copper tube is changed into a square copper tube so as to increase the area of an electromagnetic field; the cooling water is originally connected into the copper pipe, the quenching cooling medium (organic quenching liquid or inorganic quenching liquid) is connected into the copper pipe, the spraying ring at the bottom of the sensing body is additionally provided with the spraying holes, the spraying angle and effect of the internal spline part are ensured, and the cooling medium cools the whole sensing body while cooling the internal spline part.
The beneficial effects of the invention are: the invention has reasonable design, convenient operation, safety and practicability, meets the process requirements, improves the product quality, meets the requirements of batch production, has high production efficiency, small manufacturing difficulty and strong operability, and is successfully applied to a plurality of products. The quenching part of the internal spline has the advantages that the problem easily occurs in the process of one-time induction heating quenching, and the design and application of the continuous heating quenching device for the internal spline of the quenching machine tool can effectively improve the quality of the part and reduce the influence of manual operation; the heating quenching device can be popularized to the design of devices similar to induction heat treatment workpieces, and plays an important role in ensuring quality and improving production efficiency.
Drawings
The invention is further described with reference to the following figures and detailed description.
Fig. 1 is a schematic view showing the structure of the present invention and the flow direction of the cooling medium.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic view of fig. 1 in the direction of a.
Fig. 4 is a schematic view of the spray holes of the present invention.
FIG. 5 is a front view of an internally splined component.
Fig. 6 is a left side view of fig. 5.
FIG. 7 is a schematic view of the heating start point of the present invention.
FIG. 8 is a schematic view of the heating and quenching process of the present invention.
FIG. 9 is a schematic diagram of the end point of quenching of the present invention.
Reference numbers in the figures:
1. the device comprises a connecting device 101, a transformer connecting plate 102, a water inlet pipe 103, connecting pipes A and 104, a water outlet pipe 2, a sensing body 201, connecting pipes B and 202, heating rings 203, spraying rings 204, connecting pipes C and 3, internal spline parts 4 and a machine tool chuck.
Detailed Description
As shown in fig. 1-9, a quenching device for continuously heating an internal spline for a quenching machine tool comprises a connecting device 1 and an inducing body 2, wherein the connecting device 1 comprises a transformer connecting plate 101, a water inlet pipe 102, a connecting pipe A103 and a water outlet pipe 104, the inducing body 2 comprises a connecting pipe B201, a heating ring 202, a spraying ring 203 and a connecting pipe C204, the connecting device 1 comprises two sets which are symmetrically arranged, the back of an opening of the U-shaped transformer connecting plate 101 is welded and connected with a right angle position of a short side of the L-shaped connecting pipe A103, and the transformer connecting plate 101 is a connecting part of the quenching device and an output transformer of machine tool equipment; the end of the short side of the front connecting pipe A103 is welded and connected with a water inlet pipe 102, the water inlet pipe 102 is the input end of the quenching device cooling liquid and is externally connected with a cooling medium, the end of the short side of the rear connecting pipe A103 is welded and connected with a water outlet pipe 104, the end of the long side of the connecting pipe A103 of the rear connecting device 1 is welded and connected with the water outlet of the connecting pipe B201, and the end of the long side of the connecting pipe A103 of the front connecting device 1 is welded and connected with the water inlet of the connecting pipe C204; the left side of the connecting pipe C204 of the sensilla 2 is a Z-shaped pipe body, the right side is a vertical pipe body, the left side of the connecting pipe B201 of the sensilla 2 is also a Z-shaped pipe body, the right side is an inclined pipe body, the water inlet of the connecting pipe B201 is connected with the heating ring 202 in a welding mode, the water outlet of the connecting pipe C204 is connected with the spraying ring 203 in a welding mode, and the spraying ring 203 is connected with the heating ring 202.
A plurality of square spraying holes 2031 are formed in the outer side of the spraying ring 203, and the spraying holes 2031 are uniformly distributed and are kept in a horizontal direction of 45 degrees; the sensing bodies 2 are all formed by bending red copper square pipes; the cooling medium is organic quenching liquid or inorganic quenching liquid.
In the using process, the transformer connecting plate 101 of the quenching device is clamped on a quenching machine tool, a water pipe of a cooling medium is connected to a water inlet pipe 102 of the device, then the internal spline part 3 is fixed on a chuck 4 of the quenching machine tool, and then the spraying ring 203 and the heating ring 202 of the sensing body 2 of the quenching device are placed at the center of the bottom of the internal spline part 3 to complete the fixation of the internal spline part 3; after the surface distances of the spraying ring 203, the heating ring 202 and the inner spline part 3 of the induction applying body 2 of the device are adjusted, the circulation of a cooling medium is started, the cooling medium enters from the water inlet pipe 102, flows through the front side connecting pipe A103 and the connecting pipe C204, enters into the spraying ring 203, the spraying ring 203 starts to spray through the spraying holes 2031, the rotation speed of the inner spline part 3 is set, the electrical parameters of the equipment are adjusted, the cooling medium rotates for one circle in the spraying ring 203, then enters into the heating ring 202 from the spraying ring 203, rotates for one circle in the heating ring 202, flows out, flows through the connecting pipe B201 and the rear side connecting pipe A103, and finally flows out from the water outlet pipe 104, the inner spline part 3 rotates gradually and is heated by the heating ring 202, the spraying ring 203 sprays and quenches and cools until the spraying ring 203 and the heating ring 202 of the induction applying body 2 completely rise out from the inside of the inner spline part 3, the quenching process is completed, and the process parameters and the concentration of quenching liquid can be adjusted automatically.
The connecting pipes B201 and C204 are used for connecting the spraying ring 203, the heating ring 202 and the connecting device 1 of the induction body 2 and conducting current and cooling media; the heating ring 202 generates an alternating magnetic field to heat the internal spline part 3, the rotation of the internal spline part 3 can ensure uniform heating, and the heating time of the internal spline part 3 is controlled in the descending process; the connecting device 1 consisting of the transformer connecting plate 101, the water inlet pipe 102, the connecting pipe A103 and the water outlet pipe 104 plays a role in clamping and fixing the quenching device and transmitting current; the induction body 2 consisting of the connecting pipe B201, the heating ring 202, the spraying ring 203 and the connecting pipe C204 generates an alternating magnetic field for the inner spline part 3 through alternating current, induction heating and quenching cooling are carried out on the inner spline part 3, and the quenching process is completed by matching with the rotation and descending of the inner spline part 3. Adopt the heating, quench the novel processing mode that the cooling goes on in succession, the volume of executing the sense body 2 has been reduced, the area of simultaneous heating is less, the efficiency of electromagnetic field is higher, it is very fast to heat to transition temperature's speed, and adopt the rotation of numerical control quenching lathe cooperation internal spline part 3, make the heating even and rapidly, the heat loss is low, the high-temperature condition can not appear in the closed angle, and the thin wall is out of shape for a short time, directly accomplish the heating quenching process, 3 quench-cooling steps of transfer internal spline part have been reduced, the operational risk has been reduced.
Because the principle of induction heat treatment is electromagnetic heating, in order to ensure that the quenching device is not inductively heated in the use process, the material of the quenching device is red copper, the influence on the device caused by an induction magnetic field can be prevented, the phenomenon of deformation of the device caused by heat generation is avoided, and the quenching device has better corrosion resistance. The quenching device is made of a red copper tube, and the traditional round copper tube is changed into a square copper tube so as to increase the area of an electromagnetic field; the cooling water is originally connected into the copper pipe, the quenching cooling medium (organic quenching liquid or inorganic quenching liquid) is connected into the copper pipe, the spraying hole 2031 is additionally formed in the spraying ring 203 at the bottom of the sensing body 2, the spraying angle and effect of the internal spline part 3 are guaranteed, and the cooling medium cools the whole sensing body 2 while cooling the internal spline part 3.
Claims (4)
1. The utility model provides a quenching device of internal spline continuous heating for quenching machine tool, includes connecting device (1) and the body of sensing (2), and connecting device (1) includes transformer connecting plate (101), inlet tube (102), connecting pipe A (103) and outlet pipe (104) again, and the body of sensing (2) of sensing includes connecting pipe B (201), heating ring (202), sprays circle (203) and connecting pipe C (204) again, its characterized in that: the two sets of connecting devices (1) are symmetrically arranged, the back of an opening of a U-shaped transformer connecting plate (101) is welded and connected with a short-edge right angle of an L-shaped connecting pipe A (103), and the transformer connecting plate (101) is a connecting part of the quenching device and an output transformer of machine tool equipment; the end of the short side of the front side connecting pipe A (103) is connected with a water inlet pipe (102) in a welding mode, the water inlet pipe (102) is an input end of quenching device cooling liquid and is externally connected with a cooling medium, the end of the short side of the rear side connecting pipe A (103) is connected with a water outlet pipe (104) in a welding mode, the end of the long side of the connecting pipe A (103) of the rear side connecting device (1) is connected with a water outlet of the connecting pipe B (201) in a welding mode, and the end of the long side of the connecting pipe A (103) of the front side connecting device (1) is connected with a water inlet of the connecting pipe C (204) in a welding mode; the left side of a connecting pipe C (204) of the sensing body (2) is a Z-shaped pipe body, the right side of the connecting pipe C is a vertical pipe body, the left side of a connecting pipe B (201) of the sensing body (2) is also a Z-shaped pipe body, the right side of the connecting pipe B is an inclined pipe body, a water inlet of the connecting pipe B (201) is connected with a heating ring (202) in a welding mode, a water outlet of the connecting pipe C (204) is connected with a spraying ring (203) in a welding mode, and the spraying ring (203) is connected with the heating ring (202) mutually.
2. The quenching apparatus for continuously heating an internal spline of a quench machining tool according to claim 1, wherein: the outer side of the spraying ring (203) is provided with a plurality of square spraying holes (2031), and the spraying holes (2031) are uniformly distributed and keep a horizontal direction of 45 degrees.
3. The quenching apparatus for continuously heating an internal spline for a quenching machine tool according to claim 1, wherein: the sensing bodies (2) are all formed by bending red copper square pipes.
4. The quenching apparatus for continuously heating an internal spline for a quenching machine tool according to claim 1, wherein: the cooling medium is organic quenching liquid or inorganic quenching liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111618924.4A CN115433813A (en) | 2021-12-28 | 2021-12-28 | Quenching device for continuously heating internal spline for quenching machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111618924.4A CN115433813A (en) | 2021-12-28 | 2021-12-28 | Quenching device for continuously heating internal spline for quenching machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115433813A true CN115433813A (en) | 2022-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111618924.4A Withdrawn CN115433813A (en) | 2021-12-28 | 2021-12-28 | Quenching device for continuously heating internal spline for quenching machine tool |
Country Status (1)
| Country | Link |
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| CN (1) | CN115433813A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074470A (en) * | 2013-01-18 | 2013-05-01 | 万向钱潮传动轴有限公司 | Surface quenching sensor of small-diameter internal spline |
| CN208964980U (en) * | 2018-08-31 | 2019-06-11 | 山推工程机械股份有限公司 | Ring flange internal spline impewdance matching inductor |
-
2021
- 2021-12-28 CN CN202111618924.4A patent/CN115433813A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074470A (en) * | 2013-01-18 | 2013-05-01 | 万向钱潮传动轴有限公司 | Surface quenching sensor of small-diameter internal spline |
| CN208964980U (en) * | 2018-08-31 | 2019-06-11 | 山推工程机械股份有限公司 | Ring flange internal spline impewdance matching inductor |
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Application publication date: 20221206 |