CN115927811A - Heat treatment device for 35CrMo steel - Google Patents
Heat treatment device for 35CrMo steel Download PDFInfo
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- CN115927811A CN115927811A CN202211706121.9A CN202211706121A CN115927811A CN 115927811 A CN115927811 A CN 115927811A CN 202211706121 A CN202211706121 A CN 202211706121A CN 115927811 A CN115927811 A CN 115927811A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 103
- 239000010959 steel Substances 0.000 title claims abstract description 103
- 238000010438 heat treatment Methods 0.000 title claims abstract description 62
- 238000003860 storage Methods 0.000 claims abstract description 27
- 238000001816 cooling Methods 0.000 claims abstract description 25
- 238000005266 casting Methods 0.000 claims abstract description 11
- 238000010791 quenching Methods 0.000 claims abstract description 7
- 230000000171 quenching effect Effects 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000007605 air drying Methods 0.000 claims description 25
- 238000005496 tempering Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 239000007858 starting material Substances 0.000 abstract description 2
- 229910000859 α-Fe Inorganic materials 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 229910001339 C alloy Inorganic materials 0.000 description 3
- 241001233242 Lontra Species 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 239000010949 copper Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000025274 Lightning injury Diseases 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
Images
Classifications
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- 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
- Y02P10/20—Recycling
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- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a heat treatment device for 35CrMo steel, which comprises a bracket and a heating furnace fixed on the bracket; a heat treatment process of 35CrMo steel comprises the following steps: s1, starter motor drive arc rotates, when discharge gate one corresponds with discharge gate two, 35CrMo steel casting in the storage case drops to the steel placement groove on, and the drive end of telescopic link one is withdrawed, drives the steel placement groove and inserts to the heating furnace in. According to the invention, through adjusting the quenching temperature, the normalizing, cooling after quenching modes are optimized, the stress in the workpiece is eliminated through the heat treatment method, the ferrite blade structure in the workpiece is more stable, the hardness is moderate, the problem that steel is easy to crack is thoroughly solved, automatic blanking is realized through the rotation of the arc-shaped plate, the steel piece is automatically moved into the heating furnace through the movement of the steel piece placing groove, the steel piece is guided out after the heating is finished through the rotation of the baffle, the manual operation is reduced, and the safety is higher.
Description
Technical Field
The invention relates to the technical field of steel treatment, in particular to a heat treatment device for 35CrMo steel.
Background
35CrMo medium carbon alloy steel, which comprises the chemical components of carbon C:0.26 to 0.34; silicon Si:0.17 to 0.37; manganese Mn:0.40 to 0.70; and (3) Lopa Cr:0.80 to 1.10; molybdenum Mo:0.15 to 0.25; phosphorus P: less than or equal to 0.035; s, sulfur: less than or equal to 0.035; nickel Ni: less than or equal to 0.030; copper Cu: less than or equal to 0.030. The 35CrMo medium carbon alloy steel has the characteristics of good hardenability, high comprehensive mechanical property, insensitive tempering brittleness, low price and the like, and is widely applied to manufacturing various machine parts bearing impact bending and torsion high load. Such as large-section gears and transmission shafts in petroleum equipment and large-sized impeller locking devices in wind power. The environments of both oil drilling and wind power working are very severe, and the oil drilling and production are often used in very cold (about minus 40 ℃) areas and bear very large loads. The temperature is low in winter in the north, the lowest temperature is lower than-30 ℃, typhoons are often encountered in the south, and severe weather such as lightning strokes is accompanied. Therefore, the 35CrMo steel used under the conditions has higher impact toughness and good mechanical property, and the problem of improving the mechanical property of steel castings is needed to be solved at present.
Disclosure of Invention
The invention aims to solve the problem of how to effectively improve the mechanical property of carbon alloy steel in 35CrMo, and provides a heat treatment device for 35CrMo steel.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a heat treatment device of 35CrMo steel, includes the support and fixes the heating furnace on the support, the outer wall of heating furnace passes through fixed plate fixedly connected with storage case, the last lateral wall of storage case is fixed with telescopic link one, the drive end of telescopic link one is fixed with telescopic link two through the riser, the outer wall of telescopic link two is fixed with the open steel standing groove that sets up of downside through the diaphragm, the pivot is installed to the lower lateral wall of steel standing groove, the outer wall of pivot is fixed with the baffle that is located steel standing groove downside, the end fixing of pivot has the push pedal, the drive end of telescopic link two is located the left side of push pedal.
Preferably, the outer wall of storage case is fixed with the motor, the drive end of motor runs through and extends to in the storage case and is fixed with the arc of laminating mutually with the storage incasement wall through the connecting rod, discharge gate one has been seted up at the arc middle part, discharge gate two has been seted up to the outer wall of storage case.
Preferably, the support tip slides and inserts and is equipped with the air-drying plate, run through respectively on air-drying plate and the support and be provided with opening one and opening two, the tip of air-drying plate is fixed with telescopic link three through the horizontal plate, the drive end fixedly connected with of telescopic link three slides and inserts the otter board of establishing in the air-drying plate, the lower lateral wall of support is provided with the cooler bin.
Preferably, cooling water or cooling oil is arranged in the cooling tank.
Preferably, the downside of support is seted up flutedly, be equipped with the U template in the recess, the one end of U template and the one end fixed connection of air-drying plate, the interior roof and the interior diapire of U template all are provided with the sawtooth, the interior roof fixedly connected with straight board of recess, the tip fixedly connected with motor of straight board, the drive end fixedly connected with of motor is located the half-gear of U template.
A heat treatment process of 35CrMo steel comprises the following steps:
s1, starting a motor to drive an arc-shaped plate to rotate, when a first discharge port corresponds to a second discharge port, enabling a 35CrMo steel casting in a storage box to fall onto a steel casting placing groove, and withdrawing a driving end of a first telescopic rod to drive the steel casting placing groove to be inserted into a heating furnace;
s2, heating the heating furnace to 860 ℃ for 3-4 hours;
s3, after heating is finished, extending out the driving end of the first telescopic rod to push out the steel piece placing groove, retracting the driving end of the second telescopic rod, enabling the baffle to rotate downwards under the action of gravity, enabling the steel piece to slide downwards to the air drying plate along the baffle, enabling the third telescopic rod to drive the screen plate to move back, and enabling the steel piece to fall into a cooling box to be subjected to water cooling or oil cooling for 40-60S;
and S3, after cooling, taking out the steel piece, putting the steel piece on the steel piece placing groove again, pushing the steel piece into the heating furnace, raising the temperature of the heating furnace, heating to 620 ℃ for 4-6h, and carrying out heat preservation and tempering after quenching.
S4, discharging the steel part placing groove after tempering is completed, enabling the baffle plate to rotate downwards, enabling the steel part to fall onto the air drying plate, performing air cooling to a temperature below 100 ℃, pulling the screen plate towards the left side by using a third telescopic rod, and enabling the steel part to fall into water or oil for further cooling.
Compared with the prior art, the heat treatment device for the 35CrMo steel has the advantages that:
in conclusion, the invention optimizes the cooling mode after normalizing and quenching by adjusting the quenching temperature, eliminates the stress in the workpiece by the heat treatment method of the invention, ensures that the structure of the ferrite blade in the workpiece is more stable and the hardness is moderate, thoroughly solves the problem of easy cracking of steel, realizes automatic blanking by the rotation of the arc-shaped plate, realizes the automatic movement of the steel piece into the heating furnace by the movement of the steel piece placing groove, realizes the export of the steel piece after the heating is finished by the rotation of the baffle, reduces the manual operation and has higher safety.
Drawings
FIG. 1 is a schematic structural diagram of a heat treatment device for 35CrMo steel provided by the invention;
FIG. 2 is an enlarged view of a portion A of a heat treatment apparatus for 35CrMo steel according to the present invention;
FIG. 3 is a side view of the inside of a storage bin in a heat treatment apparatus for 35CrMo steel according to the present invention;
FIG. 4 is a top view of an arc plate in the heat treatment device for 35CrMo steel.
In the figure: 1. a support; 2. heating furnace; 3. a material storage box; 4. a motor; 5. an arc-shaped plate; 6. a first telescopic rod; 7. a vertical plate; 8. a second telescopic rod; 9. a transverse plate; 10. a steel piece placing groove; 11. a baffle plate; 12. pushing the plate; 13. an air-drying plate; 14. a screen plate; 15. a horizontal plate; 16. a third telescopic rod; 17. a cooling tank; 18. a U-shaped plate; 19. a motor; 20. a half gear; 21. and a first discharge hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, a heat treatment device for 35CrMo steel, including support 1 and the heating furnace 2 fixed on support 1, the outer wall of heating furnace 2 is fixed with storage box 3 through fixed plate fixedly connected with, the last lateral wall of storage box 3 is fixed with telescopic link one 6, the drive end of telescopic link one 6 is fixed with telescopic link two 8 through riser 7, the outer wall of telescopic link two 8 is fixed with the open steel standing groove 10 that sets up of downside through diaphragm 9, the outer wall of storage box 3 is fixed with motor 4, the drive end of motor 4 runs through and extends to in the storage box 3 and is fixed with arc 5 that laminates mutually with the storage box 3 inner wall through the connecting rod, discharge gate one 21 has been seted up at the middle part of arc 5, discharge gate two has been seted up to the outer wall of storage box 3, carry out the storage of steel in the storage box 3, when carrying out the heat treatment of steel, start motor 4 drives arc 5 and rotates, when discharge gate one 21 sets up with discharge gate two relatively, the steel in the storage box 3 falls out to steel standing groove 10, when discharge gate one 21 and discharge gate two, when staggering, can stop derivation of steel.
The pivot is installed to the lower lateral wall of steel part standing groove 10, the outer wall of pivot is fixed with baffle 11 that is located steel part standing groove 10 downside, the end fixing of pivot has push pedal 12, the drive end of telescopic link two 8 is located the left side of push pedal 12, the drive end fixedly connected with aluminium oxide ceramic heat insulating rod of telescopic link two 8, before carrying out heat treatment work, the drive end of telescopic link two 8 stretches out and promotes push pedal 12 and rotate, push pedal 12 drives the pivot and rotates, it contacts with steel part standing groove 10 to drive baffle 11 up to rotate, after the steel part fell to steel part standing groove 10, the drive end of telescopic link one 6 is withdrawed, it adds thermal treatment to drive steel part standing groove 10 and insert to heating furnace 2 in through riser 7, after the heat treatment is accomplished, the drive end of telescopic link one 6 stretches out and drives steel part standing groove 10 and move toward the outside, the drive end of withdrawing of telescopic link two 8, baffle 11 rotates down under the action of gravity, the steel part that the heat treatment was accomplished can cool off to air-dry on the board 13.
The tip of support 1 slides and inserts and is equipped with air-drying plate 13, it is provided with opening one and opening two to run through respectively on air-drying plate 13 and the support 1, the tip of air-drying plate 13 is fixed with three 16 telescopic links through horizontal plate 15, the drive end fixedly connected with of three 16 telescopic links slides and inserts otter board 14 of establishing in air-drying plate 13, the lower lateral wall of support 1 is provided with cooler bin 17, be equipped with cooling water or coolant oil in the cooler bin 17, when needs are derived the steel part and are carried out water or oil cold, three 16 telescopic links drive otter board 14 and move back, make the steel part drop to the cooler bin 17 in through opening one and opening two.
The downside of support 1 is seted up flutedly, be equipped with U template 18 in the recess, the one end of U template 18 and the one end fixed connection who air-dries board 13, the interior roof and the interior diapire of U template 18 all are provided with the sawtooth, the interior roof fixedly connected with straight board of recess, the tip fixedly connected with motor 19 of straight board, the drive end fixedly connected with of motor 19 is located half gear 20 in U template 18, when the work piece drops to air-drying board 13 and carries out the air cooling, starter motor 19 drives half gear 20 and rotates, drive U template 18 and air-drying board 13 and move toward the left side when half gear 20 meshes with roof sawtooth in the U template 18, drive air-drying board 13 and move to the right side when half gear 20 meshes with U template 18 bottom wall sawtooth, and then realize the round trip movement of air-drying board 13 through the rotation of half gear 20, realize rocking of steel spare, realize the abundant contact of steel spare and air, improve air cooling efficiency.
A heat treatment process of 35CrMo steel comprises the following steps:
s1, a motor 4 is started to drive an arc-shaped plate 5 to rotate, when a first discharge port 21 corresponds to a second discharge port, a 35CrMo steel casting in a storage box 3 falls onto a steel casting placing groove 10, and a driving end of a first telescopic rod 6 is retracted to drive the steel casting placing groove 10 to be inserted into a heating furnace 2;
s2, heating the heating furnace 2 to 860 ℃ for 3-4h;
s3, after heating is completed, extending out the driving end of the first telescopic rod 6, pushing out the steel piece placing groove 10, retracting the driving end of the second telescopic rod 8, enabling the baffle 11 to rotate downwards under the action of gravity, enabling the steel piece to slide downwards along the baffle 11 to the air drying plate 13, driving the screen plate 14 to move back by the third telescopic rod 16, and enabling the steel piece to fall into the cooling box 17 to be subjected to water cooling or oil cooling for 40-60S;
and S3, after cooling, taking out the steel piece, putting the steel piece on the steel piece placing groove 10 again, pushing the steel piece into the heating furnace 2, raising the temperature of the heating furnace 2, heating to 620 ℃ for 4-6h, and carrying out heat preservation and tempering after quenching.
S4, discharging the steel part placing groove 10 out of the furnace after tempering is completed, enabling the baffle 11 to rotate downwards, enabling the steel part to fall onto the air drying plate 13 to be cooled to be below 100 ℃, pulling the net plate 14 to the left by the three telescopic rods 16, and enabling the steel part to fall into water or oil to be further cooled.
Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The utility model provides a heat treatment device of 35CrMo steel, includes support (1) and fixes heating furnace (2) on support (1), its characterized in that, the outer wall of heating furnace (2) passes through fixed plate fixedly connected with storage case (3), the last lateral wall of storage case (3) is fixed with telescopic link (6), the drive end of telescopic link (6) is fixed with telescopic link two (8) through riser (7), the outer wall of telescopic link two (8) is fixed with the open steel standing groove (10) that set up of downside through diaphragm (9), the pivot is installed to the lower lateral wall of steel standing groove (10), the outer wall of pivot is fixed with baffle (11) that are located steel standing groove (10) downside, the end fixing of pivot has push pedal (12), the drive end of telescopic link two (8) is located the left side of push pedal (12).
2. The heat treatment device for 35CrMo steel according to claim 1, wherein a motor (4) is fixed on the outer wall of the storage box (3), a driving end of the motor (4) penetrates through the storage box (3) and is fixed with an arc-shaped plate (5) attached to the inner wall of the storage box (3) through a connecting rod, a first discharge hole (21) is formed in the middle of the arc-shaped plate (5), and a second discharge hole is formed in the outer wall of the storage box (3).
3. The device for heat treatment of 35CrMo steel according to claim 1, characterized in that an air drying plate (13) is slidably inserted into the end of the support (1), the air drying plate (13) and the support (1) are respectively provided with a first through hole and a second through hole, an expansion link third (16) is fixed to the end of the air drying plate (13) through a horizontal plate (15), a mesh plate (14) slidably inserted into the air drying plate (13) is fixedly connected to the driving end of the expansion link third (16), and a cooling box (17) is arranged on the lower side wall of the support (1).
4. The heat treatment device for 35CrMo steel according to claim 3, characterized in that cooling water or cooling oil is provided in the cooling tank (17).
5. The heat treatment device for 35CrMo steel according to claim 3, characterized in that the lower side of the support (1) is provided with a groove, a U-shaped plate (18) is arranged in the groove, one end of the U-shaped plate (18) is fixedly connected with one end of the air drying plate (13), both the inner top wall and the inner bottom wall of the U-shaped plate (18) are provided with sawteeth, the inner top wall of the groove is fixedly connected with a straight plate, the end part of the straight plate is fixedly connected with a motor (19), and the driving end of the motor (19) is fixedly connected with a half gear (20) positioned in the U-shaped plate (18).
6. The heat treatment process of the 35CrMo steel is characterized by comprising the following steps of:
s1, a starting motor (4) drives an arc-shaped plate (5) to rotate, when a first discharge port (21) corresponds to a second discharge port, a 35CrMo steel casting in a storage box (3) falls onto a steel casting placing groove (10), and a driving end of a first telescopic rod (6) is retracted to drive the steel casting placing groove (10) to be inserted into a heating furnace (2);
s2, heating the heating furnace (2) to 860 ℃ for 3-4h;
s3, after heating is completed, extending out the driving end of the first telescopic rod (6), pushing out the steel part placing groove (10), withdrawing the driving end of the second telescopic rod (8), enabling the baffle (11) to rotate downwards under the action of gravity, enabling the steel part to slide downwards along the baffle (11) to the air drying plate (13), enabling the third telescopic rod (16) to drive the screen plate (14) to move back, and enabling the steel part to fall into a cooling box (17) to be subjected to water cooling or oil cooling for 40-60S;
and S3, after cooling, taking out the steel piece, putting the steel piece on the steel piece placing groove (10) again, pushing the steel piece into the heating furnace (2), raising the temperature of the heating furnace (2), heating to 620 ℃ for 4-6h, and carrying out heat preservation and tempering after quenching.
S4, discharging the steel piece placing groove (10) after tempering is completed, enabling the baffle (11) to rotate downwards, enabling the steel piece to fall onto the air drying plate (13), cooling the steel piece to be below 100 ℃, pulling the net plate (14) towards the left side through a third telescopic rod (16), and enabling the steel piece to fall into water or oil to be further cooled.
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CN202211706121.9A CN115927811A (en) | 2022-12-29 | 2022-12-29 | Heat treatment device for 35CrMo steel |
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CN202211706121.9A CN115927811A (en) | 2022-12-29 | 2022-12-29 | Heat treatment device for 35CrMo steel |
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CN216663164U (en) * | 2021-11-19 | 2022-06-03 | 东莞昊崴精密五金有限公司 | Final heat treatment device for steel for cutter |
CN217677684U (en) * | 2022-05-16 | 2022-10-28 | 淅川县粉末冶金有限公司 | Blank heat treatment device |
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