CN115404322A - Slow cooling process and equipment for high-temperature forged blank - Google Patents
Slow cooling process and equipment for high-temperature forged blank Download PDFInfo
- Publication number
- CN115404322A CN115404322A CN202211074992.3A CN202211074992A CN115404322A CN 115404322 A CN115404322 A CN 115404322A CN 202211074992 A CN202211074992 A CN 202211074992A CN 115404322 A CN115404322 A CN 115404322A
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- temperature
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000010583 slow cooling Methods 0.000 title claims abstract description 18
- 238000009413 insulation Methods 0.000 claims abstract description 44
- 238000004321 preservation Methods 0.000 claims abstract description 40
- 238000001816 cooling Methods 0.000 claims abstract description 27
- 238000005242 forging Methods 0.000 claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 54
- 239000010959 steel Substances 0.000 claims description 54
- 229920000742 Cotton Polymers 0.000 claims description 48
- 239000000853 adhesive Substances 0.000 claims description 17
- 230000001070 adhesive effect Effects 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 11
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 238000005457 optimization Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000003203 everyday effect Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005255 carburizing Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/84—Controlled slow cooling
-
- 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
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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 Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The invention discloses a slow cooling and cooling process for a high-temperature forged blank, which is used for cooling the forged blank in closed equipment and comprises the following steps: a blank that was completed by forging without cooling was obtained. And (5) preparing the insulation board. And (5) preparing a heat preservation cover. The blank is placed on a heat-insulating plate. Covering the blank with a heat-insulating cover to reduce the temperature of the blank to normal temperature in the heat-insulating cover. The method is characterized in that a heat insulation plate and a heat insulation cover are additionally arranged behind a forging blank production line which needs a normalizing or isothermal normalizing process in a conventional mode, a high-temperature forging blank is placed on the heat insulation plate, the heat insulation cover covers the blank, the temperature of the blank is slowly reduced to the normal temperature under the heat insulation condition, the cooling speed of the blank cooled to the normal temperature is reduced by 3-5 times, the same metallographic grade and mechanical property as those of the blank after the normalizing or isothermal normalizing process is added are achieved, the cooled blank also meets the technical requirements, the heat treatment process of the normalizing or isothermal normalizing process is directly omitted, the method is simple and easy to operate, and the production cost is saved.
Description
Technical Field
The invention relates to the technical field of heat treatment of forging blanks, in particular to a slow cooling process for high-temperature forging blanks.
Background
In order to improve the metal cutting performance of many forging blanks in the current forging industry and increase the deformation resistance of the forging blanks in the subsequent carburizing and quenching, the normalizing or isothermal normalizing process is required to be added after the forging of the blanks so as to meet the mechanical performance and the deformation resistance of the forging blanks. The normalizing or isothermal normalizing process needs to be heated to 850-950 ℃ for heat preservation for 2-5 hours, but needs to invest in expensive production lines and consume a large amount of energy, thereby greatly increasing the production cost, the investment cost and the workload of the production process.
Disclosure of Invention
Aiming at the technical problem, the invention provides a slow cooling process for a high-temperature forging blank, which gradually reduces the temperature of the blank to normal temperature in closed equipment.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a slow cooling process for high-temperature forged blank, which is used for cooling the forged blank in a closed device, comprises the following steps:
a blank that was completed by forging without cooling was obtained.
And (5) preparing the insulation board.
And (5) preparing a heat preservation cover.
The blank is placed on a heat-insulating plate.
Covering the blank with a heat-insulating cover to reduce the temperature of the blank to normal temperature in the heat-insulating cover.
Compared with the prior art, the invention has the following advantages: the method is characterized in that a heat insulation plate and a heat insulation cover are additionally arranged behind a forging blank production line which needs a normalizing or isothermal normalizing process in a conventional manner, a high-temperature forging blank is placed on the heat insulation plate, the blank is covered by the heat insulation cover, the temperature of the blank is slowly reduced to the normal temperature under the condition of heat insulation, the cooling speed of the blank cooled to the normal temperature is reduced by 3-5 times, the same metallographic grade and mechanical property as those of the blank after the normalizing or isothermal normalizing process are increased are achieved, the cooled blank also meets the technical requirements, the heat treatment process of the normalizing or isothermal normalizing process is directly omitted in the process, the process is simple and easy to operate, and the production cost is saved.
More preferably, the temperature reduction speed of the heat preservation cover is in the range of 100-200 ℃/h.
By adopting the technical scheme, the temperature of the blank is reduced to about 30 ℃ at normal temperature within 12 hours, and the requirement of the blank on the same metallurgical grade and mechanical property after the blank is subjected to heat treatment by a normalizing or isothermal normalizing process is met.
Further preferably, the step of preparing the insulation board comprises:
and obtaining a steel plate with a preset area.
And obtaining the heat insulation cotton with the same area as the steel plate.
Fixing the heat insulation cotton on the surface of the steel plate.
And compacting the heat-preservation cotton by using a compacting device.
By adopting the technical scheme, the heat-insulation board formed by combining the steel plate and the heat-insulation cotton can be used for placing the blank on the heat-insulation cotton without rapid cooling, and the purpose of conveniently placing the blank can be achieved.
Further preferably, the fixing of the insulation wool on the surface of the steel plate comprises:
an adhesive is coated on the surface of the steel plate.
And laying heat-insulating cotton on the adhesive.
By adopting the technical scheme, the steel plate and the heat-preservation cotton are fixed together, when a large number of blanks or blanks in a large area are to be placed, the heat-preservation cotton is placed to be driven by the blanks to move on the steel plate due to the fact that the heat-preservation cotton is in contact with the blanks, and the blanks are conveniently placed.
The supporting legs are welded on the bottom surface of the steel plate and used for supporting the steel plate to bear the blank.
By adopting the technical scheme, the steel plate is supported by the supporting legs, the heat of the blank is reduced and is transmitted to the ground through the steel plate, the speed of slowing down the cooling of the blank is achieved, the cooling time is prolonged, and the metallographic grade and the mechanical property of the blank meet the technical requirements.
Further optimization is that the step of preparing the heat-insulating cover comprises:
and manufacturing the cover body by using molding equipment.
And coating an adhesive on the surface of the cover body.
And laying heat-insulating cotton on the adhesive to cover the cover body.
By adopting the technical scheme, the cover body is bonded with the heat-preservation cotton through the adhesive on the surface of the manufactured cover body, so that the heat-preservation cotton is prevented from sliding off the surface of the cover body, the time for reducing the temperature of the blank is prolonged, and the auxiliary effect of slowly reducing the temperature of the blank in the cover body is achieved.
Further optimization is that the material of the heat preservation cotton is silicate fiber ester.
By adopting the technical scheme, the heat-insulating cotton prepared by changing the material has high temperature resistance and excellent heat-insulating property, so that the blank can not burn in the cooling process and can delay the cooling speed of the blank, and the metallographic grade and the mechanical property of the cooled blank can meet the technical requirements.
Further optimized, the cover comprises:
the lifting hook is arranged on the top surface of the cover body, is fixedly connected with the cover body and is used for assisting the cover body to cover or uncover so as to place or take out the blank.
The cover net is covered on the surface of the cover body and fixedly connected with the surface of the cover body.
And the heat-insulating layer is laid on the cover net and used for preventing the cover body from reducing the temperature of the blank to normal temperature.
Adopt above-mentioned technical scheme, through the combination of heat preservation and cover net, make the heat preservation can not slide from the cover net, can guarantee that the internal temperature of cover reduces gradually to make the blank slowly cooled off at the internal of cover.
Further optimization is that the material of the lifting hook is the same as that of the cover body.
By adopting the technical scheme, the lifting hook and the cover body can not cause stress to occur at the connecting part because of different materials when being manufactured, and the cover body is prevented from being broken when being hoisted.
Further optimization is that the cover net is made of steel wires.
By adopting the technical scheme, the cover net made of the steel wires and the heat-preservation cotton can be well combined together and coated on the cover body, and the purpose of delaying the rapid reduction of the temperature in the cover body can be achieved between the cover net and the heat-preservation cotton.
Drawings
FIG. 1 is a flow chart of the process of this embodiment;
FIG. 2 is a schematic diagram of a cooling process in this embodiment;
FIG. 3 is a schematic structural view of the driven bevel gear in the present embodiment;
FIG. 4 is a schematic cross-sectional view taken at A in FIG. 3;
FIG. 5 is a schematic structural view of a steel plate according to the present embodiment;
FIG. 6 is a schematic sectional view of a steel plate in the present embodiment;
FIG. 7 is a schematic sectional view of the cover in the present embodiment;
FIG. 8 is a schematic cross-sectional view of the steel plate at A in FIG. 7;
reference numerals: 1-a heat insulation board; 2-blank; 3-a heat preservation cover; 31-a cover; 32-a hook; 33-a cover net; 34-an insulating layer; 4-a steel plate; 5-heat preservation cotton; 6-a support leg; 7-driven bevel gear.
Detailed Description
The present invention is described in further detail below with reference to fig. 1-8.
A slow cooling process for high temperature forged blank 2, as shown in fig. 1, for cooling forged blank 2 in a closed apparatus, comprising:
the uncooled blank 2 completed by forging was obtained. In one embodiment, as shown in fig. 2, 3 and 4, the blank 2 may be any forged, uncooled fabricated part of the driven bevel gear 7, ring gear, or the like.
And preparing the heat-insulating board 1. The shape of the heat insulation board 1 is not limited, the heat insulation board can be square, round or any irregular shape, and the heat insulation board 1 with the shape matched with the cooling requirement can be prepared according to the actual production requirement.
And preparing the heat preservation cover 3. The heat preservation cover 3 is internally provided with a semi-closed cavity, and when the heat preservation cover covers the heat preservation plate 1, the semi-closed cavity and the heat preservation plate 1 can form a closed space to provide a closed cooling space for the slow cooling of the blank 2.
The blank 2 is placed on the heat-insulating plate 1. The blank 2 can be directly placed on the heat-insulating plate 1, the placing rule can be linear arrangement, circumferential arrangement or other irregular arrangement, and the blank 2 can be completely covered by the heat-insulating cover 3.
And covering the blank 2 with the heat-insulating cover 3 to form a closed cooling space between the blank and the heat-insulating plate 1, so that the temperature of the blank 2 is reduced to normal temperature in the heat-insulating cover 3.
The method is characterized in that an insulation board 1 and an insulation cover 3 are added behind a forging blank 2 production line which conventionally needs a normalizing or isothermal normalizing process, the high-temperature forging blank 2 is placed on the insulation board 1, the insulation cover 3 covers the blank 2, the blank 2 and the insulation cover provide a closed cooling space for the blank 2, so that the temperature of the blank 2 is slowly reduced to the normal temperature under the condition of heat insulation, the cooling speed of the blank 2 cooled to the normal temperature is reduced by 3-5 times, the same metallographic grade and mechanical property as those of the blank 2 after the normalizing or isothermal normalizing process is added are achieved, the cooled blank 2 also meets the technical requirements, the heat treatment process of the normalizing or isothermal normalizing process is directly omitted, the method is simple and easy to operate, and the production cost is saved.
Specifically, the temperature reduction speed range of the heat preservation cover 3 in the embodiment is 100-200 ℃/h. The temperature of the blank 2 is reduced to about 30 ℃ at normal temperature within 12 hours, and the requirements of the same metallurgical grade and mechanical property after the blank is subjected to heat treatment by a normalizing or isothermal normalizing process are met.
Specifically, the step of preparing the insulation board 1 in this embodiment includes:
a steel plate 4 of a preset area is obtained. The thickness of the steel plate 4 can be 6mm, 8mm or 10mm, and even multiple layers of steel plates 4 can be stacked together for placing the blanks 2 with different weights, and the steel plates 4 with different thicknesses can be prepared as required on an actual production line for placing the blanks 2.
The heat-insulating cotton 5 having the same area as the steel plate 4 is obtained, so that the heat-insulating cotton 5 can be fully paved on the steel plate 4 for placing a large number of blanks 2 or occupying a large area of the blanks 2.
The heat insulating cotton 5 is fixed on the surface of the steel plate 4. The concrete fixing mode can be bonding or fix the heat preservation cotton 5 on the steel plate 4 by means of a fixing piece, the embodiment is a bonding mode, the fixing piece is a common fixing mode, and the application is not repeated.
The heat preservation cotton 5 is compacted by a compacting device. The compressing device is the prior art, and only needs to compress the heat insulation cotton 5 on the steel plate 4.
With this heated board 1 that can combine together preparation and form with steel sheet 4 and heat preservation cotton 5, reach and can enough place blank 2 on heat preservation cotton 5 and can not rapid cooling, can play the purpose of conveniently placing blank 2 again.
Specifically, fixing the heat insulating cotton 5 on the surface of the steel plate 4 in this embodiment includes:
an adhesive is applied to the surface of the steel plate 4. The adhesive is epoxy resin AB glue, so that the heat-insulating cotton 5 can be firmly adhered to the steel plate 4, and the heat-insulating cotton has the characteristic of high temperature resistance.
And paving the heat insulation cotton 5 on the adhesive, and fixing the heat insulation cotton 5 on the steel plate 4 through the adhesive.
Make steel sheet 4 and heat preservation cotton 5 fixed together, when will placing a large amount of blanks 2 or the blank 2 of great area, place heat preservation cotton 5 because with the contact of blank 2 driven by blank 2 and the drunkenness on steel sheet 4, conveniently place blank 2.
Specifically, the support legs 6 are welded on the bottom surface of the steel plate 4 in this embodiment, the surface of the steel plate 4 may be a plane or a grid, a certain friction force is formed between the surface of the grid-shaped steel plate 4 and the heat insulation cotton 5, the auxiliary heat insulation cotton 5 can be better laid on the steel plate 4, and as shown in fig. 1, 5 and 6, the support legs 6 are used for supporting the steel plate 4 to bear the blank 2. The legs 6 may be hollow or solid. The hollow legs 6 can support the steel plate 4 to carry the light-weight blank 2. The solid legs 6 can support the steel plate 4 to bear the heavy weight of the blank 2.
The steel plate 4 is supported by the supporting legs 6, heat of the blank 2 is reduced and is transmitted to the ground through the steel plate 4, the speed of slowing down the cooling of the blank 2 is achieved, the cooling time is prolonged, and the metallographic grade and the mechanical property of the blank 2 meet the technical requirements.
Specifically, the step of preparing the heat-insulating cover 3 in this embodiment includes:
the cover 31 is manufactured using a molding apparatus. The internal diameter of the cap 31 is dimensioned to be greater than the dimensions of the blank 2 to ensure that the cap 31 completely covers the blank 2.
An adhesive is applied to the surface of the cover 31. Specifically, the outer surface is coated with an adhesive, which may be uniformly coated on the outer surface of the cover 31, or may be distributed on the surface of the cover 31 in a dot shape.
The heat-insulating cotton 5 is laid on the adhesive to cover the cover body 31, and the temperature in the cover body 31 is rapidly reduced.
On the surface of the manufactured cover body 31, the cover body 31 is bonded with the heat preservation cotton 5 through the adhesive, so that the heat preservation cotton 5 is prevented from sliding off from the surface of the cover body 31, the time for reducing the temperature of the blank 2 is prolonged, and the auxiliary effect of slowly reducing the temperature of the blank 2 in the cover body 31 is achieved.
Specifically, the material of the heat insulation cotton 5 in this embodiment is silicate fiber ester. The heat insulation cotton 5 made of the modified material has high temperature resistance and excellent heat insulation performance, and can not burn the blank 2 in the cooling process and delay the cooling speed of the blank 2, so that the metallographic grade and the mechanical performance of the cooled blank 2 meet the technical requirements.
Specifically, as shown in fig. 7 and 8, the cover 31 in the present embodiment includes:
and the hook 32 is arranged on the top surface of the cover body 31, is fixedly connected with the cover body 31 and is used for assisting the cover body 31 to cover or uncover so as to place or take out the blank 2. The shape of the hook 32 may be either an S-shape or an inverted V-shape.
The cover net is a multi-layer net structure, covers the surface of the cover body 31, and is fixedly connected with the surface of the cover body 31.
And the heat insulation layer is laid on the cover net and used for preventing the cover body 31 from reducing the temperature of the blank 2 to the normal temperature.
Through the combination of heat preservation and cover net, make the heat preservation can not slide from the cover net, can guarantee that the temperature in the cover body 31 reduces gradually to make blank 2 slowly cooled off in the cover body 31.
The material of the hook 32 is the same as that of the cover 31.
The lifting hook 32 and the cover body 31 are made of different materials, so that stress at the connecting part is avoided, and the cover body 31 is prevented from being broken when being lifted.
Specifically, the cover net in this embodiment is made of steel wires. The net cover can also be a net cover formed by weaving a plurality of layers of steel wires, the cover net made of the steel wires and the heat insulation cotton 5 can be well combined together and coated on the cover body 31, and the purpose of delaying the rapid reduction of the temperature in the cover body 31 can be achieved between the cover net and the heat insulation cotton 5.
Temperature reduction process
Taking a driven bevel gear 7 of a certain company as a blank 2, please refer to fig. 1 to 8, and the specific cooling process and cooling effect are described as follows:
the high-temperature blank 2 (about 1100 ℃) of the driven bevel gear 7 is placed on the heat preservation plate 1, the driven bevel gear 7 is immediately covered by the heat preservation cover 3, the temperature of the blank 2 is reduced to about 30 ℃ within 12 hours at the speed of 100-200 ℃ per hour, and each forged blank 2 of the driven bevel gear 7 is completely cooled according to the method, so that the process that the forged driven bevel gear 7 is cooled to the normal temperature from the blank 2 in the air and then isothermal normalizing is carried out is omitted.
One isothermal normalizing production line is used for more than 700 ten thousand yuan, 236 tons of blanks are thermally treated every day, 15560 DEG of electricity consumption is saved every day, the electricity charge is 0.74 yuan/degree, 11480 yuan is saved totally, calculated in a two-shift production mode, one person is needed to cover the heat-insulating cover 3 every shift, the required wages are about 400 yuan, 11080 yuan is saved every day, each production line can be expected to save 200-400 ten thousand yuan every year, and the metallographic grade and the mechanical property of the blanks 2 can meet the technical requirements.
The present embodiment is only for explaining the invention, and it is not limited to the invention, and those skilled in the art can make modifications to the embodiment as necessary without inventive contribution after reading the present specification, but all of them are protected by the patent law within the scope of the present invention.
Claims (10)
1. The utility model provides a high temperature forging blank slow cooling technology for will cool off through forged blank (2) in the closed equipment, its characterized in that includes:
obtaining a blank (2) which is completed through forging and is not cooled;
preparing a heat insulation board (1);
preparing a heat preservation cover (3);
placing the blank (2) on the heat-insulating plate (1);
and covering the blank (2) with the heat-preservation cover (3) so as to reduce the temperature of the blank (2) to the normal temperature in the heat-preservation cover (3).
2. The slow cooling process for the high-temperature forging blank according to claim 1, wherein the cooling speed of the heat-preserving cover (3) is in the range of 100-200 ℃/hour.
3. The slow cooling process for the high-temperature forging blank according to claim 1, wherein the step of preparing the heat-insulating plate (1) comprises the following steps:
obtaining a steel plate (4) with a preset area;
obtaining heat insulation cotton (5) with the same area as the steel plate (4);
fixing the heat-insulating cotton (5) on the surface of the steel plate (4);
compacting the heat-insulating cotton (5) by a compacting device.
4. The slow cooling process for high temperature forging blank as claimed in claim 3, wherein the step of fixing the heat-insulating cotton (5) on the surface of the steel plate (4) comprises the steps of:
coating an adhesive on the surface of the steel plate (4);
and laying the heat-preservation cotton (5) on the adhesive.
5. The slow cooling process for the high-temperature forging blank as set forth in claim 3, wherein legs (6) are welded to the bottom surface of the steel plate (4), and the legs (6) are used for supporting the steel plate (4) to bear the blank (2).
6. The slow cooling process for the high-temperature forged blank as set forth in claim 1, wherein the step of preparing the heat-retaining cover (3) comprises:
manufacturing a cover body (31) by using molding equipment;
coating an adhesive on the surface of the cover body (31);
and paving the heat-preservation cotton (5) on the adhesive to coat the cover body (31).
7. The slow cooling process for the high-temperature forged blank according to claim 6, wherein the material of the heat-insulating cotton (5) is silicate fiber ester.
8. The slow cooling process for high-temperature forging blank according to claim 6, wherein the cover body (31) comprises:
the lifting hook (32) is arranged on the top surface of the cover body (31), is fixedly connected with the cover body (31), and is used for assisting the cover body (31) to cover or uncover so as to place or take out the blank (2);
the cover net (33) is covered on the surface of the cover body (31) and is fixedly connected with the surface of the cover body (31);
and the heat insulation layer (34) is laid on the cover net (33) and used for preventing the cover body (31) from reducing the temperature of the blank (32) to the normal temperature.
9. The slow cooling process for the high-temperature forging blank according to claim 8, wherein the material of the lifting hook (32) is the same as that of the cover body (31).
10. The slow cooling process for the high-temperature forged blank according to claim 8, wherein the material of the shielding net (33) is steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211074992.3A CN115404322A (en) | 2022-09-02 | 2022-09-02 | Slow cooling process and equipment for high-temperature forged blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211074992.3A CN115404322A (en) | 2022-09-02 | 2022-09-02 | Slow cooling process and equipment for high-temperature forged blank |
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| Publication Number | Publication Date |
|---|---|
| CN115404322A true CN115404322A (en) | 2022-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211074992.3A Pending CN115404322A (en) | 2022-09-02 | 2022-09-02 | Slow cooling process and equipment for high-temperature forged blank |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007000883A (en) * | 2005-06-22 | 2007-01-11 | Sanyo Special Steel Co Ltd | Method for manufacturing hot-forged hub product |
| CN111517627A (en) * | 2020-06-12 | 2020-08-11 | 五冶集团上海有限公司 | Quartz annealing furnace |
-
2022
- 2022-09-02 CN CN202211074992.3A patent/CN115404322A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007000883A (en) * | 2005-06-22 | 2007-01-11 | Sanyo Special Steel Co Ltd | Method for manufacturing hot-forged hub product |
| CN111517627A (en) * | 2020-06-12 | 2020-08-11 | 五冶集团上海有限公司 | Quartz annealing furnace |
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