CN115351068A - Thermal forming processing technology - Google Patents
Thermal forming processing technology Download PDFInfo
- Publication number
- CN115351068A CN115351068A CN202211069440.3A CN202211069440A CN115351068A CN 115351068 A CN115351068 A CN 115351068A CN 202211069440 A CN202211069440 A CN 202211069440A CN 115351068 A CN115351068 A CN 115351068A
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- steel
- forming
- conveying
- angle
- finished product
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- 238000012545 processing Methods 0.000 title claims abstract description 17
- 238000005516 engineering process Methods 0.000 title abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 89
- 239000010959 steel Substances 0.000 claims abstract description 89
- 239000000463 material Substances 0.000 claims abstract description 27
- 238000001816 cooling Methods 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 238000010791 quenching Methods 0.000 claims abstract description 19
- 230000000171 quenching effect Effects 0.000 claims abstract description 19
- 229910001566 austenite Inorganic materials 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000005520 cutting process Methods 0.000 claims abstract description 15
- 230000006835 compression Effects 0.000 claims abstract description 7
- 238000007906 compression Methods 0.000 claims abstract description 7
- 238000003698 laser cutting Methods 0.000 claims abstract description 7
- 238000005507 spraying Methods 0.000 claims abstract description 6
- 229910000734 martensite Inorganic materials 0.000 claims description 11
- 238000012805 post-processing Methods 0.000 claims description 7
- 238000003856 thermoforming Methods 0.000 claims 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 8
- 238000005266 casting Methods 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 229910052742 iron Inorganic materials 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000002844 melting Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 4
- 238000007493 shaping process Methods 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/004—Heating the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
- B21D13/04—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling
- B21D13/045—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling the corrugations being parallel to the feeding movement
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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
-
- 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
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a hot forming processing technology, which comprises the following steps: the steel coil is placed in a feeding mechanism, the steel is flattened by a compression roller on a flattening device, the steel is heated to the austenite temperature range (850 ℃ -93 ℃) by heating equipment, and then the steel is rolledThe forming device is used for shaping steel, quenching cooling is carried out through quenching cooling equipment at the speed of 50-100 ℃/s after forming, the steel is cut through a material cutting device according to actual requirements after full quenching cooling, and finally laser cutting, burr treatment and surface spraying are carried out on the steel through a post-treatment device. Aiming at the problems of complex production energy consumption and low finished product strength and heavy weight of the existing high-speed guardrail and angle steel casting process, the hot forming process provided by the invention can ensure that the finished product strength reaches 1500 MPa-1600 MPa, the Vickers hardness reaches 400 HV-510 HV, and the finished product can bear 10-30 tons (1000-3000N/mm) 2 ) The method abandons the traditional method of melting and casting iron ore and adopts a steel coil material to heat and form, improves the strength of finished products and reduces the energy consumption of production.
Description
Technical Field
The invention relates to the technical field of steel forming processing, in particular to a hot forming processing technology.
Background
The traditional casting process is adopted when the highway guard plate and the angle steel are produced, namely, a method of melting and pouring iron ore into a specific mould for casting and forming is adopted.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a hot forming processing technology, which comprises the steps of heating 22MnB5 steel to 850-930 ℃ by heating equipment to form austenite, shaping the austenite by using roll forming equipment, and quenching the austenite at a cooling speed of 50-100 ℃/s by using quenching cooling equipment to form martensite, so that the strength of a finished product reaches 1500-1600 MPa, the Vickers hardness reaches 400-510 HV, and the finished product can bear 10-30 tons (1000-3000N/mm) 2 ) The pressure of the method is higher than that of the traditional iron ore melting and casting method which adopts a steel coil material for heating and forming, the strength of the finished product is improved, the production energy consumption is reduced, and the emission of pollutants is reduced.
The invention is realized by the following technical scheme:
a hot forming process, comprising the steps of: s1, placing a 22MnB5 steel coil material in a feeding mechanism, and conveying the steel coil material to a flattening device through the feeding mechanism for extruding and flattening treatment;
s2, introducing the steel coil subjected to the leveling treatment into heating equipment to heat the steel material to the temperature of 850-930 ℃ so as to form austenite;
s3, conveying the heated steel to roll forming equipment to shape the steel according to actual requirements;
s4, conveying the shaped steel to a quenching cooling device, and quenching at a cooling speed of 50-100 ℃/S to form martensite;
s5, transferring the quenched and cooled steel to a material cutting device through a conveying mechanism for fixed-length cutting;
and S6, conveying the steel with the fixed length to a post-processing device through a conveying mechanism for laser cutting and burr processing, and spraying the surface.
By adopting the technical scheme, the heating equipment heats the 22MnB5 steel to 850-930 ℃ to enable the 22MnB5 steel to form austenite, so that the toughness of the steel is improved, the steel is quenched at the cooling speed of 50-100 ℃/s through the quenching and cooling device to form martensite, and compared with the traditional casting and forming process, the process that the steel is heated to form austenite and is quenched and cooled to form martensite through the hot forming process improves the toughness and the strength of a finished product.
Further, cylinders are arranged on two sides of the leveling device, a press roller is mounted above the leveling device through a slide rail, 5-10 forming rollers are mounted on the roll forming device, 3 cams are arranged on the forming rollers, the forming rollers can be replaced by angulation rollers for angle steel forming processing, the angulation rollers are provided with angle wheels, the material cutting device is provided with an upper hydraulic cylinder and a lower hydraulic cylinder, and tool bits are mounted on the hydraulic cylinders.
Through adopting above-mentioned technical scheme, the setting of compression roller can level and smooth the curling produced arch of steel coil stock for follow-up firing equipment can carry out abundant even heating to steel, makes its good formation austenite, the setting of forming roll makes steel carry out moulding to it after forming the austenite, the pneumatic cylinder by institute with the setting of tool bit can make the intercepting device cuts off the steel of cutting from top to bottom opening and shutting in succession, has improved the degree of automation of hot forming processing technology.
In conclusion, the invention has the following beneficial effects:
1. the heating equipment heats the 22MnB5 steel to 850-930 ℃ to enable the 22MnB5 steel to form austenite, so that the toughness of the steel is increased, the steel is quenched at a cooling speed of 50-100 ℃/s through a quenching cooling device to form martensite, compared with the traditional casting forming processing technology, the process that the steel is heated to form austenite and is quenched and cooled to form martensite through a hot forming processing technology enables the strength of a finished product to reach 1500-1600 MPa, the Vickers hardness to reach 400-510 HV, and the finished product can bear 10-30 tons (1000-3000N/mm) 2 ) Pressure of (2) so thatThe toughness and the strength of the finished product are both improved;
2. the traditional iron ore melting casting method is abandoned, and a steel coil material is used for heating and forming, so that the production energy consumption is reduced while the strength and the toughness of the finished product are improved, and the emission of pollutants is reduced;
3. the setting of compression roller can level and smooth the curling produced arch of steel coil stock for follow-up firing equipment can carry out abundant even heating to steel, makes its good formation austenite, the setting of forming roll makes steel carry out moulding to it after forming the austenite, the pneumatic cylinder with the setting of tool bit can make the intercepting device is continuous to open and shut the intercepting steel from top to bottom, has improved the degree of automation of hot forming processing technology.
Drawings
FIG. 1 is a schematic view of a process line configuration of the present invention;
FIG. 2 is a schematic view of the structure of the leveling device of FIG. 1;
FIG. 3 is a schematic structural view of the roll forming apparatus of FIG. 1;
FIG. 4 is a schematic view of the structure of the material cutting device in FIG. 1;
FIG. 5 is a schematic structural view of an angled roller in the third embodiment;
fig. 6 is a schematic structural view of a highway fender according to the second embodiment.
In the figure, 1, a feeding mechanism; 2. a leveling device; 3. a heating device; 4. roll forming equipment; 5. a quenching cooling device; 6. a material cutting device; 7. a post-processing device; 8. a conveying device; 9. a cylinder; 10. a compression roller; 11. a forming roller; 12. a cam; 13. a hydraulic cylinder; 14. a cutter head; 15. an angled roller; 16. a corner wheel.
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.
The invention is described in further detail below with reference to the figures and examples.
Example one
A hot forming process, comprising the steps of: s1, placing a 22MnB5 steel coil in a feeding mechanism 1, and conveying the steel coil to a flattening device 2 through the feeding mechanism 1 for extruding and flattening treatment;
s2, introducing the steel coil subjected to the leveling treatment into heating equipment 3, and heating the steel to the temperature of 850-930 ℃ to form austenite;
s3, conveying the heated steel to roll forming equipment 4 to shape the steel according to actual needs;
s4, conveying the shaped steel to a quenching cooling device 5, and quenching at a cooling speed of 50-100 ℃/S to form martensite;
s5, transferring the quenched and cooled steel to a material cutting device 6 through a conveying mechanism for fixed-length cutting;
and S6, conveying the steel products with the fixed length to a post-processing device 7 through a conveying mechanism for laser cutting, burr processing and surface spraying.
The implementation principle of the specific embodiment is as follows: the steel is heated to the temperature of 850-930 ℃ through the heating device 3 to form austenite, the toughness of the steel is improved, the steel is shaped through the roll forming device 4, the steel is quenched at the cooling speed of 50-100 ℃/s through the quenching cooling device 5 to form martensite, the strength of the steel is improved, the steel is cut at a fixed length through the material cutting device 6, and finally the steel is conveyed to the post-processing device 7 through the conveying mechanism to be subjected to laser cutting and burr treatment, and the surface of the steel is sprayed to obtain a final product.
Example two
In this embodiment, the processing technique in the first embodiment is applied to processing a highway fender, and includes the steps of: the method comprises the following steps of placing a 22MnB5 steel coil material into a feeding mechanism 1, conveying the steel coil material to a flattening device 2 through the feeding mechanism 1, pressing down by using an air cylinder 9 to drive a compression roller 10 to extrude the steel material to be flattened, introducing the flattened steel material into a heating device 3 to be heated, and heating the steel material to 900 ℃ to form austenite; and then the heated steel is transported to the roll forming equipment 4, at the moment, the cam 12 arranged on the forming roller 11 extrudes the steel to form wave-shaped lines as shown in figure 6, the shaped steel is transported to the quenching and cooling device 5, quenching is carried out at a cooling speed of 75 ℃/s to form martensite, the quenched and cooled steel is transmitted to the material cutting device 6 through the conveying mechanism to carry out fixed-length cutting, and finally the fixed-length cut steel is transmitted to the post-processing device 7 through the conveying mechanism to be subjected to laser cutting, burr treatment and surface spraying.
EXAMPLE III
The difference between the embodiment and the second embodiment lies in that the machined product is different, and the embodiment applies the hot forming machining process to angle steel machining, and the steps include: placing a 22MnB5 steel coil material into a feeding mechanism 1, conveying the steel coil material to the flattening device 2 through the feeding mechanism 1, pressing down the air cylinder 9 to drive the compression roller 10 to extrude the steel material to be flattened, introducing the flattened steel material into the heating equipment 3 to heat, and heating the steel material to 930 ℃ to form austenite; and then conveying the heated steel to the roll forming equipment 4, wherein the angle wheel 16 arranged on the angle roller 15 extrudes the steel to form a right angle, then conveying the shaped steel to the quenching cooling device 5, quenching at a cooling speed of 83 ℃/s to form martensite, and finally conveying the quenched and cooled steel to the post-processing device 7 through the conveying mechanism for laser cutting, burr treatment and surface spraying.
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 (4)
1. A hot forming process, comprising the steps of:
s1, placing a 22MnB5 steel coil in a feeding mechanism (1), and conveying the steel coil to a flattening device (2) through the feeding mechanism (1) for extruding and flattening treatment;
s2, introducing the steel coil subjected to the leveling treatment into heating equipment (3) to heat the steel material to the temperature of 850-930 ℃ so as to form austenite;
s3, conveying the heated steel to roll forming equipment (4) to shape the steel according to actual needs;
s4, conveying the shaped steel to a quenching cooling device (5), and quenching at a cooling speed of 50-100 ℃/S to form martensite;
s5, transferring the quenched and cooled steel to a material cutting device (6) through a conveying mechanism for fixed-length cutting;
and S6, conveying the steel products with the fixed length to a post-processing device (7) through a conveying mechanism for laser cutting, burr processing and surface spraying.
2. The thermoforming process according to claim 1, wherein: level and to put (2) both sides and be provided with cylinder (9), level and to put (2) top and install compression roller (10) through the slide rail.
3. The thermoforming process of claim 1, wherein: the roll forming device is provided with 5-10 forming rollers (11), the forming rollers (11) are provided with 3 cams (12), the forming rollers (11) can be replaced by angle forming rollers (15) for forming and processing angle steel, and the angle forming rollers (15) are provided with angle wheels (16).
4. The thermoforming process according to claim 1, wherein: the material cutting device (6) is provided with an upper hydraulic cylinder and a lower hydraulic cylinder (13), and a cutter head (14) is installed on the hydraulic cylinders (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211069440.3A CN115351068A (en) | 2022-09-02 | 2022-09-02 | Thermal forming processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211069440.3A CN115351068A (en) | 2022-09-02 | 2022-09-02 | Thermal forming processing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115351068A true CN115351068A (en) | 2022-11-18 |
Family
ID=84005783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211069440.3A Withdrawn CN115351068A (en) | 2022-09-02 | 2022-09-02 | Thermal forming processing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115351068A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117862294A (en) * | 2024-03-13 | 2024-04-12 | 河北路鑫交通设施有限公司 | Three-wave forming machine for guardrail plate |
-
2022
- 2022-09-02 CN CN202211069440.3A patent/CN115351068A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117862294A (en) * | 2024-03-13 | 2024-04-12 | 河北路鑫交通设施有限公司 | Three-wave forming machine for guardrail plate |
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Application publication date: 20221118 |