CN112058993A - Forming process of stainless steel tensile member - Google Patents
Forming process of stainless steel tensile member Download PDFInfo
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- CN112058993A CN112058993A CN202010878732.6A CN202010878732A CN112058993A CN 112058993 A CN112058993 A CN 112058993A CN 202010878732 A CN202010878732 A CN 202010878732A CN 112058993 A CN112058993 A CN 112058993A
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- stretching
- stainless steel
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- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/28—Associations of cutting devices therewith
- B21D43/287—Devices for handling sheet or strip material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
-
- 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
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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)
- Optics & Photonics (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention provides a forming process of a stainless steel stretching piece, which comprises the operations of material selection, fixed die, pre-annealing, polishing, first stretching, first cleaning, first bright annealing, second stretching, second cleaning and second bright annealing, wherein in the second stretching, a semi-finished product of the first stretching is further stretched to reduce the diameter of a stainless steel stretching piece blank and increase the height, in the first stretching and the second stretching, oil stains on a machined piece are washed away through twice cleaning, and then the first bright annealing and the second bright annealing are respectively carried out, so that the annealing performance and the brightness of the machined piece can be improved, the deformation in the stretching process can be reduced, the stretching speed can be improved, and the brightness of the stainless steel stretching piece can be improved.
Description
Technical Field
The invention relates to a forming process, in particular to a forming process of a stainless steel stretching piece.
Background
In the process of processing and forming a coating material carrier applied to an evaporation coating machine, steel wool which is subjected to cutting, carrying and extrusion forming is generally required to be pressed into a phi 16 cylindrical stainless steel drawing piece, but in the existing forming process for the stainless steel drawing piece, the drawing speed is low due to the large blank thickness, the drawing deformation is large, and the drawn stainless steel drawing piece has a cracking tendency due to the repeated pressing and drawing processes, so that the performance of the drawing piece is influenced.
Therefore, a forming process of the stainless steel tensile member, which has better forming stability and can improve the brightness of the tensile member, is urgently needed.
Disclosure of Invention
The invention aims to provide a forming process of a stainless steel tensile member, which has better forming stability and can improve the brightness of the tensile member.
The invention provides the following technical scheme:
a forming process of a stainless steel stretching piece comprises the following steps:
selecting materials: selecting a stainless steel plate as a blank, calculating the size of the stainless steel plate according to the size of the formed tensile member, and cutting the blank into a circular plate by using a cutting machine according to the calculated target size;
fixing a mold: selecting a hot stretching die according to the cut circular plate, wherein the die is provided with two die positions with sequentially deepened depths, fixing the die on a die spotting machine, and cleaning the die;
pre-annealing: placing the cut round plate in an annealing furnace for annealing treatment, keeping the temperature of the annealing furnace at 1050-;
polishing: polishing the surface of the workpiece to clean burrs;
stretching for the first time: placing the polished blank in a mold position with the shallowest mold depth, starting a mold closing machine, heating to 580-630 ℃, carrying out primary hot stretching to obtain a primary stretched semi-finished product,
cleaning for the first time: carrying out primary cleaning on the primary stretched semi-finished product;
primary bright annealing: placing the cleaned first-time stretched semi-finished product in a closed annealing furnace for annealing again, keeping the temperature of the annealing furnace at 1050 ℃ and 1100 ℃ for 20 minutes, and then rapidly cooling to form a bright surface on the surface of the semi-finished product;
and (3) second stretching: placing the first-time stretched semi-finished product with the surface bright surface treated in another mould position, and performing second-time hot stretching and shape correction to obtain a second-time stretched semi-finished product;
and (3) cleaning for the second time: cleaning the secondary stretched semi-finished product again;
secondary bright annealing: and (3) placing the cleaned second-time stretched semi-finished product in a closed annealing furnace for annealing again, keeping the temperature of the annealing furnace at 1050-.
Preferably, the stainless steel circular plate has a thickness of 0.5mm and a diameter of 185 mm.
Preferably, the difference between the height of the first-time stretching semi-finished product and the height of the second-time stretching semi-finished product is 6-7 mm.
Preferably, the stretching speed of the first stretching and the second stretching is 100 mm/min.
Preferably, the pre-annealed annealing furnace holding temperature is 1080 ℃.
Preferably, the temperature in the die position in the first drawing is 600 ℃.
Preferably, the temperature in the die position in the second drawing is 600 ℃.
The invention has the beneficial effects that: after the circular plate blank is subjected to primary pre-annealing and polishing, the operation processing steps of primary stretching, primary cleaning, primary bright annealing, secondary stretching, secondary cleaning and secondary bright annealing are sequentially carried out, the primary stretched semi-finished product is further stretched in the secondary stretching to reduce the diameter of the stainless steel stretched piece blank and increase the height, oil stains on a machined piece are washed off in the primary stretching and the secondary stretching, and then primary bright annealing and secondary bright annealing are respectively carried out, so that the annealing performance and the brightness of the machined piece can be improved, the deformation in the stretching process can be reduced, the stretching speed can be improved, and the brightness of the stainless steel stretched piece can be improved.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments in order to further understand the features and technical means of the invention and achieve specific objects and functions.
The embodiment of the invention discloses a forming process of a stainless steel stretching piece, which comprises the following steps:
selecting materials: selecting a stainless steel plate as a blank, calculating the size of the stainless steel plate according to the size of the formed tensile member, and cutting the blank into a circular plate by using a cutting machine according to the calculated target size;
fixing a mold: selecting a hot stretching die according to the cut circular plate, wherein the die is provided with two die positions with sequentially deepened depths, fixing the die on a die spotting machine, and cleaning the die;
pre-annealing: placing the cut round plate in an annealing furnace for annealing treatment, keeping the temperature of the annealing furnace at 1050-;
polishing: polishing the surface of the workpiece to clean burrs;
stretching for the first time: placing the polished blank in a mold position with the shallowest mold depth, starting a mold closing machine, heating to 580-630 ℃, carrying out primary hot stretching to obtain a primary stretched semi-finished product,
cleaning for the first time: carrying out primary cleaning on the primary stretched semi-finished product;
primary bright annealing: placing the cleaned first-time stretched semi-finished product in a closed annealing furnace for annealing again, keeping the temperature of the annealing furnace at 1050 ℃ and 1100 ℃ for 20 minutes, and then rapidly cooling to form a bright surface on the surface of the semi-finished product;
and (3) second stretching: placing the first-time stretched semi-finished product with the surface bright surface treated in another mould position, and performing second-time hot stretching and shape correction to obtain a second-time stretched semi-finished product;
and (3) cleaning for the second time: cleaning the secondary stretched semi-finished product again;
secondary bright annealing: and (3) placing the cleaned second-time stretched semi-finished product in a closed annealing furnace for annealing again, keeping the temperature of the annealing furnace at 1050-.
The stainless steel round plate has a thickness of 0.5mm and a diameter of 185 mm.
The difference height between the first-time stretched semi-finished product and the second-time stretched semi-finished product is 6-7 mm.
The drawing speed of the first drawing and the second drawing was 100 mm/min.
The annealing furnace for pre-annealing was maintained at a temperature of 1080 ℃.
The temperature in the die position in the first drawing was 600 ℃.
The temperature in the die position during the second drawing was 600 ℃.
The working principle of the invention is as follows: the invention discloses a forming process of a stainless steel drawing piece, which comprises the steps of performing primary pre-annealing and polishing on a circular plate blank, sequentially performing primary drawing, primary cleaning, primary bright annealing, secondary drawing, secondary cleaning and secondary bright annealing, further drawing a primary drawn semi-finished product in the secondary drawing to reduce the diameter of the stainless steel drawing piece blank and increase the height of the stainless steel drawing piece blank, washing and removing oil stains on a machined piece through twice cleaning in the primary drawing and the secondary drawing, and then performing the primary bright annealing and the secondary bright annealing respectively, so that the annealing performance and the brightness of the machined piece can be improved, the deformation in the drawing process can be reduced, the drawing speed can be improved, and the brightness of the stainless steel drawing piece can be improved.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A forming process of a stainless steel tensile member is characterized by comprising the following steps:
selecting materials: selecting a stainless steel plate as a blank, calculating the size of the stainless steel plate according to the size of the formed tensile member, and cutting the blank into a circular plate by using a cutting machine according to the calculated target size;
fixing a mold: selecting a hot stretching die according to the cut circular plate, wherein the die is provided with two die positions with sequentially deepened depths, fixing the die on a die spotting machine, and cleaning the die;
pre-annealing: placing the cut round plate in an annealing furnace for annealing treatment, keeping the temperature of the annealing furnace at 1050-;
polishing: polishing the surface of the workpiece to clean burrs;
stretching for the first time: placing the polished blank in a mold position with the shallowest mold depth, starting a mold closing machine, heating to 580-630 ℃, carrying out primary hot stretching to obtain a primary stretched semi-finished product,
cleaning for the first time: carrying out primary cleaning on the primary stretched semi-finished product;
primary bright annealing: placing the cleaned first-time stretched semi-finished product in a closed annealing furnace for annealing again, keeping the temperature of the annealing furnace at 1050 ℃ and 1100 ℃ for 20 minutes, and then rapidly cooling to form a bright surface on the surface of the semi-finished product;
and (3) second stretching: placing the first-time stretched semi-finished product with the surface bright surface treated in another mould position, and performing second-time hot stretching and shape correction to obtain a second-time stretched semi-finished product;
and (3) cleaning for the second time: cleaning the secondary stretched semi-finished product again;
secondary bright annealing: and (3) placing the cleaned second-time stretched semi-finished product in a closed annealing furnace for annealing again, keeping the temperature of the annealing furnace at 1050-.
2. The process for forming a stainless steel drawn member according to claim 1, wherein: the stainless steel round plate is 0.5mm in thickness and 185mm in diameter.
3. The process for forming a stainless steel drawn member according to claim 1, wherein: the difference height between the first-time stretched semi-finished product and the second-time stretched semi-finished product is 6-7 mm.
4. The process for forming a stainless steel drawn member according to claim 1, wherein: the stretching speed of the first stretching and the second stretching is 100 mm/min.
5. The process for forming a stainless steel drawn member according to claim 1, wherein: the holding temperature of the annealing furnace for pre-annealing is 1080 ℃.
6. The process for forming a stainless steel drawn member according to claim 1, wherein: the temperature in the die position in the first drawing is 600 ℃.
7. The process for forming a stainless steel drawn member according to claim 1, wherein: the temperature in the die position during the second drawing is 600 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010878732.6A CN112058993A (en) | 2020-08-27 | 2020-08-27 | Forming process of stainless steel tensile member |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010878732.6A CN112058993A (en) | 2020-08-27 | 2020-08-27 | Forming process of stainless steel tensile member |
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| CN112058993A true CN112058993A (en) | 2020-12-11 |
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| CN202010878732.6A Pending CN112058993A (en) | 2020-08-27 | 2020-08-27 | Forming process of stainless steel tensile member |
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| CN (1) | CN112058993A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114986770A (en) * | 2022-06-15 | 2022-09-02 | 模鑫(台州)科技有限公司 | Manufacturing process of glove mold |
| CN117680551A (en) * | 2023-12-11 | 2024-03-12 | 东莞市创明电池技术有限公司 | Manufacturing process of cylindrical steel shell and application of cylindrical steel shell |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081707A (en) * | 2015-09-28 | 2015-11-25 | 中材科技(成都)有限公司 | Hot drawing technology for 410# steel cylinders |
| CN105081043A (en) * | 2015-09-28 | 2015-11-25 | 中材科技(成都)有限公司 | Hot drawing technology of 430 material steel cylinder |
| CN106270264A (en) * | 2016-08-30 | 2017-01-04 | 成都科创诺商贸有限公司 | A kind of Pneumatic automobile high rigidity steel cylinder Hot drawing technique |
| CN106270263A (en) * | 2016-08-30 | 2017-01-04 | 成都科创诺商贸有限公司 | A kind of Pneumatic automobile corrosion resistant steel cylinder Hot drawing technique |
| CN109201837A (en) * | 2018-08-15 | 2019-01-15 | 东莞市瑞成精密模具有限公司 | A kind of battery steel shell drawing process |
-
2020
- 2020-08-27 CN CN202010878732.6A patent/CN112058993A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081707A (en) * | 2015-09-28 | 2015-11-25 | 中材科技(成都)有限公司 | Hot drawing technology for 410# steel cylinders |
| CN105081043A (en) * | 2015-09-28 | 2015-11-25 | 中材科技(成都)有限公司 | Hot drawing technology of 430 material steel cylinder |
| CN106270264A (en) * | 2016-08-30 | 2017-01-04 | 成都科创诺商贸有限公司 | A kind of Pneumatic automobile high rigidity steel cylinder Hot drawing technique |
| CN106270263A (en) * | 2016-08-30 | 2017-01-04 | 成都科创诺商贸有限公司 | A kind of Pneumatic automobile corrosion resistant steel cylinder Hot drawing technique |
| CN109201837A (en) * | 2018-08-15 | 2019-01-15 | 东莞市瑞成精密模具有限公司 | A kind of battery steel shell drawing process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114986770A (en) * | 2022-06-15 | 2022-09-02 | 模鑫(台州)科技有限公司 | Manufacturing process of glove mold |
| CN117680551A (en) * | 2023-12-11 | 2024-03-12 | 东莞市创明电池技术有限公司 | Manufacturing process of cylindrical steel shell and application of cylindrical steel shell |
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Application publication date: 20201211 |
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