CN111088416A - Manufacturing process of high-strength roller and heat treatment device adopted in manufacturing process - Google Patents
Manufacturing process of high-strength roller and heat treatment device adopted in manufacturing process Download PDFInfo
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- CN111088416A CN111088416A CN202010103821.3A CN202010103821A CN111088416A CN 111088416 A CN111088416 A CN 111088416A CN 202010103821 A CN202010103821 A CN 202010103821A CN 111088416 A CN111088416 A CN 111088416A
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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
- C21D1/18—Hardening; Quenching with or without subsequent tempering
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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
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Abstract
The invention relates to the technical field of metal processing, and discloses a manufacturing process of a high-strength roller and a heat treatment device adopted by the manufacturing process, wherein the manufacturing process of the high-strength roller comprises the following steps: s1, selecting a cylindrical high-carbon steel raw material, soaking the high-carbon steel in the S1 in deionized water for 30-40min, wherein the diameter of the cylindrical high-carbon steel is 50-100cm, and the length of the cylindrical high-carbon steel is 150-200cmS2, and then blowing the high-carbon steel to dry by using a blower; s3, placing the high-carbon steel processed in the step S2 on the right side inside the box body for preheating for 10-20min, and taking out for natural cooling; and S4, putting the high-carbon steel processed in the S3 into the right side of the interior of the box body for heating. According to the invention, high-temperature quenching and Chinese tempering are carried out on the high-carbon steel twice, the high-carbon steel has good hardness, so that the hardness and the strength of the final product are greatly improved, and impurities in the high-carbon steel are removed by preheating the high-carbon steel, so that the quality of the final product is ensured.
Description
Technical Field
The invention relates to the technical field of metal processing, in particular to a manufacturing process of a high-strength roller and a heat treatment device adopted in the manufacturing process.
Background
The extrusion roller is used for crushing materials on a roller press under high pressure, so the extrusion roller is also called a high-pressure roller mill, the normal working pressure is 40-80 kN/cm1, and the working principle of the extrusion roller mill is that the fed materials are crushed and pressed into cakes under the action of high pressure when passing through a gap between two grinding rollers rotating in opposite directions. In the relative rotation of the rollers, the linear speed of the periphery of the grinding roller is 1-2 m/s, so that the extrusion roller of the roller press bears severe high-stress abrasive wear and stress fatigue failure. Also, since foreign matter such as metal parts often enters the crushed material, the form of destruction of the roll surface is complicated. This puts high demands on the wear resistance of the roll surface of the roll squeezer.
The existing compression roller has the defects of low strength, poor quality and poor service life.
Disclosure of Invention
The present invention is to provide a manufacturing process of a high-strength roll and a heat treatment apparatus used for the manufacturing process, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a process for manufacturing a high strength roll, comprising the steps of:
s1, selecting a cylindrical high-carbon steel raw material, wherein the diameter of the cylindrical high-carbon steel is 50-100cm, and the length of the cylindrical high-carbon steel is 150-200 cm;
s2, soaking the high-carbon steel in the S1 in deionized water for 30-40min, and then blowing the high-carbon steel dry by using a blower;
s3, placing the high-carbon steel processed in the step S2 on the right side inside the box body for preheating for 10-20min, and taking out for natural cooling;
s4, placing the high-carbon steel processed in the step S3 on the right side inside the box body for heating, wherein the heating temperature is 900-1100 ℃, and the heating time is 60-120 min;
s5, pushing the pull rod to move the heated water tank to the left side inside the tank body, then opening a water spraying head at the bottom of the water tank, and rapidly cooling the heated high-carbon steel;
s6, after the high-carbon steel is cooled, quickly sending the high-carbon steel to the right side in the box body for heating, wherein the heating temperature is 800-900 ℃, the heating time is 30-60min, and then moving to the position below the sprinkler head for quickly cooling;
s7, heating the high-carbon steel again after two times of high-temperature quenching, wherein the heating temperature is 500-600 ℃, finally taking out the high-carbon steel, and naturally cooling until the heat treatment process is finished;
s8, placing high-carbon steel into a numerical control machine tool for rough machining, then cooling for ten minutes, then performing semi-finish machining, then performing finish machining, and finally machining mounting ports at two ends of the roller;
and S9, taking out the workpiece, and manually filing burrs on the surface of the workpiece to obtain a final product.
Preferably, the original surface of the high carbon steel in S1 is required to be rust-free and dent-free, and has consistent color and smooth surface.
A heat treatment device for manufacturing and adopting high-strength rollers comprises a box body, wherein supporting legs are fixedly connected to the bottom of the box body, a box cover is arranged on the left side of the box body, the top of the box body at the top of the box cover is hinged, a pull rod is arranged on the right side of the box body, a through hole is formed in the bottom of the right side of the box body, a supporting plate is fixedly connected to the left end of the pull rod through the through hole and penetrates into the box body, bulges are arranged on the periphery of the top of the supporting plate, sliding blocks are fixedly connected to two ends of the bottom of the supporting plate and are slidably connected with the bottom of the inner wall of the box body, a fuel tank is arranged on the right side of the top of the box body and is fixedly connected with the top of the box body through a supporting rod, a flame jet head is fixedly connected to the bottom of the, the left side fixedly connected with water filling port at water tank top, the top fixedly connected with water injection pipe of water filling port, the bottom fixedly connected with sprinkler bead of water tank, the sprinkler bead runs through to the inside of box, the top fixedly connected with spacing groove at box middle part, the inner wall top fixedly connected with hydraulic rod of spacing groove, hydraulic rod's bottom fixedly connected with insulated door, the below of insulated door is opened at the top of box has the opening that matches with the insulated door.
Preferably, the left side of the bottom of the inner wall of the box body is sunken, and the left side of the bottom of the box body is fixedly connected with a water outlet.
Preferably, one side of the bottom of the box cover close to the box body is fixedly connected with an inserted bar, and the inserted bar is inserted into a socket on the left side of the bottom of the box body.
The invention provides a manufacturing process of a high-strength roller and a heat treatment device adopted by the manufacturing process. The method has the following beneficial effects:
(1) the invention carries out twice high-temperature quenching and once Chinese tempering on the high-carbon steel, and the high-carbon steel has good hardness, so that the hardness and the strength of the final product are greatly improved.
(2) According to the invention, the high-carbon steel is preheated and soaked in the deionized water, so that impurities in the high-carbon steel are removed, the quality of a final finished product is ensured, and the service life is prolonged.
Drawings
Fig. 1 is a front view of the present invention.
In the figure: 1 box body, 2 box covers, 3 pull rods, 4 supporting plates, 5 fuel tanks, 6 flame-throwing heads, 7 water tanks, 8 water injection pipes, 9 water-spraying heads, 10 limiting grooves, 11 hydraulic push rods and 12 heat-insulating doors.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
a process for manufacturing a high strength roll, comprising the steps of:
s1, selecting a cylindrical high-carbon steel raw material, wherein the diameter of the cylindrical high-carbon steel is 50cm, the length of the cylindrical high-carbon steel is 150cm, the original surface of the high-carbon steel is required to be free of rust and depression, the color of the high-carbon steel is consistent, and the surface of the high-carbon steel is smooth;
s2, soaking the high-carbon steel in the S1 in deionized water for 30min, and then blowing the high-carbon steel dry by using a blower;
s3, putting the high-carbon steel processed in the step S2 into the right side of the interior of the box body 1 for preheating for 10min, and taking out for natural cooling;
s4, placing the high-carbon steel processed in the step S3 on the right side inside the box body 1 for heating, wherein the heating temperature is 900 ℃, and the heating time is 60 min;
s5, the pull rod 3 is pushed, the heated steel is moved to the left side inside the box body 1, then the water spray head 9 at the bottom of the water tank 7 is opened, and the heated high-carbon steel is rapidly cooled;
s6, after the high-carbon steel is cooled, quickly feeding the high-carbon steel to the right side in the box body 1 for heating at 800 ℃ for 30min, and then moving the box body to the position below the water spray head 9 for quickly cooling;
s7, after two times of high-temperature quenching, heating the high-carbon steel again, wherein the heating temperature is 500 ℃, finally taking out the high-carbon steel, and naturally cooling until the heat treatment process is finished;
s8, placing high-carbon steel into a numerical control machine tool for rough machining, then cooling for ten minutes, then performing semi-finish machining, then performing finish machining, and finally machining mounting ports at two ends of the roller;
and S9, taking out the workpiece, and manually filing burrs on the surface of the workpiece to obtain a final product.
A heat treatment device for manufacturing high-strength rollers comprises a box body 1, wherein the left side of the bottom of the inner wall of the box body 1 is concave, the left side of the bottom of the box body 1 is fixedly connected with a water outlet, the bottom of the box body 1 is fixedly connected with supporting legs, the left side of the box body 1 is provided with a box cover 2, one side, close to the box body 1, of the bottom of the box cover 2 is fixedly connected with an inserted bar, the inserted bar is inserted into a socket on the left side of the bottom of the box body 1, the top of the box body 1 on the top of the box cover 1 is hinged, the right side of the box body 1 is provided with a pull rod 3, the bottom on the right side of the box body 1 is provided with a through hole, the left end of the pull rod 3 penetrates into the inner part of the box body 1 through the through hole to be fixedly connected with, a fuel tank 5 is arranged on the right side of the top of the tank body 1, the fuel tank 5 is fixedly connected with the top of the tank body 1 through a support rod, the bottom of the fuel tank 5 is fixedly connected with a flame projecting head 6, the flame projecting head 6 penetrates through the interior of the tank body 1, the left side of the top of the box body 1 is provided with a water tank 7, the water tank 7 is fixedly connected with the box body 1 through a support rod, the left side of the top of the water tank 7 is fixedly connected with a water injection port, the top of the water injection port is fixedly connected with a water injection pipe 8, the bottom of the water tank 7 is fixedly connected with a water spraying head 9, the water spraying head 9 penetrates into the tank body 1, the top of the middle part of the box body 1 is fixedly connected with a limit groove 10, the top of the inner wall of the limit groove 10 is fixedly connected with a hydraulic push rod 11, the bottom of the hydraulic push rod 11 is fixedly connected with a heat insulation door 12, and an opening matched with the heat insulation door is formed in the top of the box body 1 below the heat insulation door 12.
Example two:
a process for manufacturing a high strength roll, comprising the steps of:
s1, selecting a cylindrical high-carbon steel raw material, wherein the diameter of the cylindrical high-carbon steel is 600cm, the length of the cylindrical high-carbon steel is 180cm, the original surface of the high-carbon steel is required to be free of rust and depression, the color of the high-carbon steel is consistent, and the surface of the high-carbon steel is smooth;
s2, soaking the high-carbon steel in the S1 in deionized water for 35min, and then blowing the high-carbon steel dry by using a blower;
s3, putting the high-carbon steel processed in the step S2 into the right side of the interior of the box body 1 for preheating for 15min, and taking out for natural cooling;
s4, placing the high-carbon steel processed in the step S3 on the right side inside the box body 1 for heating, wherein the heating temperature is 1000 ℃, and the heating time is 100 min;
s5, the pull rod 3 is pushed, the heated steel is moved to the left side inside the box body 1, then the water spray head 9 at the bottom of the water tank 7 is opened, and the heated high-carbon steel is rapidly cooled;
s6, after the high-carbon steel is cooled, quickly feeding the high-carbon steel to the right side in the box body 1 for heating at 850 ℃ for 50min, and then moving the box body to the position below the water spray head 9 for quickly cooling;
s7, after two times of high-temperature quenching, heating the high-carbon steel again, wherein the heating temperature is 550 ℃, and finally taking out the high-carbon steel, and naturally cooling until the heat treatment process is finished;
s8, placing high-carbon steel into a numerical control machine tool for rough machining, then cooling for ten minutes, then performing semi-finish machining, then performing finish machining, and finally machining mounting ports at two ends of the roller;
and S9, taking out the workpiece, and manually filing burrs on the surface of the workpiece to obtain a final product.
A heat treatment device for manufacturing high-strength rollers comprises a box body 1, wherein the left side of the bottom of the inner wall of the box body 1 is concave, the left side of the bottom of the box body 1 is fixedly connected with a water outlet, the bottom of the box body 1 is fixedly connected with supporting legs, the left side of the box body 1 is provided with a box cover 2, one side, close to the box body 1, of the bottom of the box cover 2 is fixedly connected with an inserted bar, the inserted bar is inserted into a socket on the left side of the bottom of the box body 1, the top of the box body 1 on the top of the box cover 1 is hinged, the right side of the box body 1 is provided with a pull rod 3, the bottom on the right side of the box body 1 is provided with a through hole, the left end of the pull rod 3 penetrates into the inner part of the box body 1 through the through hole to be fixedly connected with, a fuel tank 5 is arranged on the right side of the top of the tank body 1, the fuel tank 5 is fixedly connected with the top of the tank body 1 through a support rod, the bottom of the fuel tank 5 is fixedly connected with a flame projecting head 6, the flame projecting head 6 penetrates through the interior of the tank body 1, the left side of the top of the box body 1 is provided with a water tank 7, the water tank 7 is fixedly connected with the box body 1 through a support rod, the left side of the top of the water tank 7 is fixedly connected with a water injection port, the top of the water injection port is fixedly connected with a water injection pipe 8, the bottom of the water tank 7 is fixedly connected with a water spraying head 9, the water spraying head 9 penetrates into the tank body 1, the top of the middle part of the box body 1 is fixedly connected with a limit groove 10, the top of the inner wall of the limit groove 10 is fixedly connected with a hydraulic push rod 11, the bottom of the hydraulic push rod 11 is fixedly connected with a heat insulation door 12, and an opening matched with the heat insulation door is formed in the top of the box body 1 below the heat insulation door 12.
Example three:
a process for manufacturing a high strength roll, comprising the steps of:
s1, selecting a cylindrical high-carbon steel raw material, wherein the diameter of the cylindrical high-carbon steel is 100cm, the length of the cylindrical high-carbon steel is 00cm, the original surface of the high-carbon steel is required to be free of rust and depression, the color of the high-carbon steel is consistent, and the surface of the high-carbon steel is smooth;
s2, soaking the high-carbon steel in the S1 in deionized water for 40min, and then blowing the high-carbon steel dry by using a blower;
s3, putting the high-carbon steel processed in the step S2 into the right side of the interior of the box body 1 for preheating for 20min, and taking out for natural cooling;
s4, placing the high-carbon steel processed in the step S3 on the right side inside the box body 1 for heating, wherein the heating temperature is 1100 ℃, and the heating time is 120 min;
s5, the pull rod 3 is pushed, the heated steel is moved to the left side inside the box body 1, then the water spray head 9 at the bottom of the water tank 7 is opened, and the heated high-carbon steel is rapidly cooled;
s6, after the high-carbon steel is cooled, quickly feeding the high-carbon steel to the right side in the box body 1 for heating at 900 ℃ for 60min, and then moving the box body to the position below the water spray head 9 for quickly cooling;
s7, after two times of high-temperature quenching, heating the high-carbon steel again, wherein the heating temperature is 600 ℃, finally taking out the high-carbon steel, and naturally cooling until the heat treatment process is finished;
s8, placing high-carbon steel into a numerical control machine tool for rough machining, then cooling for ten minutes, then performing semi-finish machining, then performing finish machining, and finally machining mounting ports at two ends of the roller;
and S9, taking out the workpiece, and manually filing burrs on the surface of the workpiece to obtain a final product.
A heat treatment device for manufacturing high-strength rollers comprises a box body 1, wherein the left side of the bottom of the inner wall of the box body 1 is concave, the left side of the bottom of the box body 1 is fixedly connected with a water outlet, the bottom of the box body 1 is fixedly connected with supporting legs, the left side of the box body 1 is provided with a box cover 2, one side, close to the box body 1, of the bottom of the box cover 2 is fixedly connected with an inserted bar, the inserted bar is inserted into a socket on the left side of the bottom of the box body 1, the top of the box body 1 on the top of the box cover 1 is hinged, the right side of the box body 1 is provided with a pull rod 3, the bottom on the right side of the box body 1 is provided with a through hole, the left end of the pull rod 3 penetrates into the inner part of the box body 1 through the through hole to be fixedly connected with, a fuel tank 5 is arranged on the right side of the top of the tank body 1, the fuel tank 5 is fixedly connected with the top of the tank body 1 through a support rod, the bottom of the fuel tank 5 is fixedly connected with a flame projecting head 6, the flame projecting head 6 penetrates through the interior of the tank body 1, the left side of the top of the box body 1 is provided with a water tank 7, the water tank 7 is fixedly connected with the box body 1 through a support rod, the left side of the top of the water tank 7 is fixedly connected with a water injection port, the top of the water injection port is fixedly connected with a water injection pipe 8, the bottom of the water tank 7 is fixedly connected with a water spraying head 9, the water spraying head 9 penetrates into the tank body 1, the top of the middle part of the box body 1 is fixedly connected with a limit groove 10, the top of the inner wall of the limit groove 10 is fixedly connected with a hydraulic push rod 11, the bottom of the hydraulic push rod 11 is fixedly connected with a heat insulation door 12, and an opening matched with the heat insulation door is formed in the top of the box body 1 below the heat insulation door 12.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A manufacturing process of a high-strength roller is characterized in that: the method comprises the following steps:
s1, selecting a cylindrical high-carbon steel raw material, wherein the diameter of the cylindrical high-carbon steel is 50-100cm, and the length of the cylindrical high-carbon steel is 150-200 cm;
s2, soaking the high-carbon steel in the S1 in deionized water for 30-40min, and then blowing the high-carbon steel dry by using a blower;
s3, putting the high-carbon steel processed in the step S2 into the right side inside the box body (1) for preheating for 10-20min, and taking out for natural cooling;
s4, placing the high-carbon steel processed in the step S3 on the right side inside the box body (1) for heating, wherein the heating temperature is 900-;
s5, pushing the pull rod (3), moving the heated steel to the left side inside the box body (1), and then opening a water spraying head (9) at the bottom of the water tank (7) to rapidly cool the heated high-carbon steel;
s6, after the high-carbon steel is cooled, quickly sending the high-carbon steel to the right side in the box body (1) for heating at the temperature of 800-;
s7, heating the high-carbon steel again after two times of high-temperature quenching, wherein the heating temperature is 500-600 ℃, finally taking out the high-carbon steel, and naturally cooling until the heat treatment process is finished;
s8, placing high-carbon steel into a numerical control machine tool for rough machining, then cooling for ten minutes, then performing semi-finish machining, then performing finish machining, and finally machining mounting ports at two ends of the roller;
and S9, taking out the workpiece, and manually filing burrs on the surface of the workpiece to obtain a final product.
2. The manufacturing process of a high-strength roll according to claim 1, wherein: the original surface of the high-carbon steel in S1 is required to be rust-free and dent-free, and has consistent color and smooth surface.
3. A heat treatment device for manufacturing and adopting high-strength rollers comprises a box body (1) and is characterized in that supporting legs are fixedly connected to the bottom of the box body (1), a box cover (2) is arranged on the left side of the box body (1), the top of the box body (1) on the top of the box cover (1) is hinged to the top of the box body, a pull rod (3) is arranged on the right side of the box body (1), a through hole is formed in the bottom of the right side of the box body (1), a supporting plate (4) is fixedly connected to the inside of the box body (1) through the through hole at the left end of the pull rod (3), bulges are arranged on the periphery of the top of the supporting plate (4), sliding blocks are fixedly connected to two ends of the bottom of the supporting plate (4), the sliding blocks are connected with the bottom of the inner wall of the box body (1) in a sliding mode, a fuel tank (5) is arranged on the, the bottom of the fuel tank (5) is fixedly connected with a flame projecting head (6), the flame projecting head (6) penetrates through the interior of the tank body (1), a water tank (7) is arranged on the left side of the top of the box body (1), the water tank (7) is fixedly connected with the box body (1) through a support rod, the left side of the top of the water tank (7) is fixedly connected with a water injection port, the top of the water injection port is fixedly connected with a water injection pipe (8), the bottom of the water tank (7) is fixedly connected with a water spraying head (9), the water spraying head (9) penetrates into the tank body (1), the top of the middle part of the box body (1) is fixedly connected with a limit groove (10), the top of the inner wall of the limit groove (10) is fixedly connected with a hydraulic push rod (11), the bottom of the hydraulic push rod (11) is fixedly connected with a heat insulation door (12), and an opening matched with the heat insulation door is formed in the top of the box body (1) below the heat insulation door (12).
4. The heat treatment apparatus for high-strength roll manufacturing according to claim 4, wherein: the left side of the bottom of the inner wall of the box body (1) is sunken, and a water outlet is fixedly connected to the left side of the bottom of the box body (1).
5. The heat treatment apparatus for high-strength roll manufacturing according to claim 4, wherein: the bottom of the box cover (2) is close to one side of the box body (1) and is fixedly connected with an inserted bar, and the inserted bar is inserted into a socket on the left side of the bottom of the box body (1).
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| CN206646139U (en) * | 2017-04-10 | 2017-11-17 | 南京精锋制刀有限公司 | A kind of annealing device of metal forging material |
| CN108103302A (en) * | 2018-01-09 | 2018-06-01 | 常州艾柯轧辊有限公司 | A kind of cold roll whole heat treatment process |
| CN209537565U (en) * | 2019-01-12 | 2019-10-25 | 福建省永进机械制造有限公司 | A kind of creeper tread annealing device |
| CN110592335A (en) * | 2019-10-22 | 2019-12-20 | 徐州彭圆锻造有限公司 | Calender roller heat treatment process |
-
2020
- 2020-02-20 CN CN202010103821.3A patent/CN111088416B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884126A (en) * | 2016-12-30 | 2017-06-23 | 中钢集团邢台机械轧辊有限公司 | A kind of high chromium steel roller and its manufacture method |
| CN206646139U (en) * | 2017-04-10 | 2017-11-17 | 南京精锋制刀有限公司 | A kind of annealing device of metal forging material |
| KR101798359B1 (en) * | 2017-05-12 | 2017-11-15 | 이유창 | Manufacturing method of super roller and the same using therefor |
| CN108103302A (en) * | 2018-01-09 | 2018-06-01 | 常州艾柯轧辊有限公司 | A kind of cold roll whole heat treatment process |
| CN209537565U (en) * | 2019-01-12 | 2019-10-25 | 福建省永进机械制造有限公司 | A kind of creeper tread annealing device |
| CN110592335A (en) * | 2019-10-22 | 2019-12-20 | 徐州彭圆锻造有限公司 | Calender roller heat treatment process |
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