CN112275829A - Wire rolling process of high-carbon chromium bearing steel hot-rolled wire rod - Google Patents
Wire rolling process of high-carbon chromium bearing steel hot-rolled wire rod Download PDFInfo
- Publication number
- CN112275829A CN112275829A CN202011174542.2A CN202011174542A CN112275829A CN 112275829 A CN112275829 A CN 112275829A CN 202011174542 A CN202011174542 A CN 202011174542A CN 112275829 A CN112275829 A CN 112275829A
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- China
- Prior art keywords
- bearing steel
- carbon chromium
- chromium bearing
- rolling
- wire rod
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
- B21C37/045—Manufacture of wire or bars with particular section or properties
-
- 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
- B21B1/16—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
-
- 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
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a wire rolling process of a high-carbon chromium bearing steel hot-rolled wire rod, which mainly uses devices comprising a heating furnace, a small-sized heating box, a rolling transmission belt, a push rod, a wire rolling machine, a slow cooling device, a cutting device, a rolling device, a polishing and grinding device, a straightening device, a high-carbon chromium bearing steel plate blank and the like. Through replacing rapid cooling device on the production line, make to change into slow cooling device, during the use, can progressively adjust through the inside temperature of slow cooling device, make when using, will place in batches inferior inside slow cooling device, make the mode that progressively reduces through the temperature to slow cooling device inside make to cool down inside, when making play the increasing device use, avoid high carbon chromium bearing steel plate blank to cause the phenomenon that causes the damage to internal structure characteristic at rapid cooling's in-process, make the security when increasing device uses.
Description
Technical Field
The invention relates to the technical field of wire rod rolling, in particular to a wire rod rolling process of a high-carbon chromium bearing steel hot-rolled wire rod.
Background
Most of bearing rings and rolling bodies are made of special steel, high-carbon chromium bearing steel (GCr 15, GCr15SiMn, ZGCr15 and ZGCr15 SiMn) is used for manufacturing the rings and the rolling bodies, the hardness of parts is high, therefore, hot rolling wire rods are required to be carried out on the high-carbon chromium bearing steel, the shape and the ductility of the high-carbon chromium bearing steel are changed in the manufacturing process of the high-carbon chromium bearing steel, large-sized high-carbon chromium bearing steel is extruded into small-sized long strips with specific shapes, the existing wire rod rolling process needs to be changed, and therefore, a wire rod rolling process of the high-carbon chromium bearing steel hot rolling wire rods is developed and improved aiming at the existing wire rod rolling process, but certain problems exist in the existing wire rod rolling process of the high-carbon chromium bearing steel hot rolling wire rods.
In the wire rod rolling technology of current high carbon chromium bearing steel hot rolling wire rod, the device appears and the temperature can be along with the phenomenon that the temperature reduces gradually when using when the total panel of course of working adds man-hour, influence simultaneously and exist the phenomenon of certain inconvenience of appearance to adding man-hour in the course of working, there is the appearance to need cooling down the back to panel and carry out the design processing simultaneously when using, but the common rapid cooling in-process of appearing can cause inside production physical and chemical reaction to current high carbon chromium bearing steel slab for the phenomenon that leads to the inner structure characteristic to change.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a wire rolling process of a high-carbon chromium bearing steel hot-rolled wire rod, which solves the problems of damage to the wire rod during rapid cooling and increase of stable temperature during processing when a device is used.
In order to achieve the purpose, the invention provides the following technical scheme: a wire rolling process for a high-carbon chromium bearing steel hot-rolled wire rod mainly comprises a heating furnace, a small-sized heating box, a rolling transmission belt, a push rod, a wire rolling machine, a slow cooling device, a cutting device, a rolling device, a polishing and grinding device, a straightening device, a high-carbon chromium bearing steel plate blank and the like.
Preferably, the processing steps of the wire rod rolling process of the high-carbon chromium bearing steel hot-rolled wire rod comprise;
s1: placing a high-carbon chromium bearing steel plate blank in a heating furnace for heating, so that the heating temperature reaches 1120 ℃, and simultaneously conveying the heated steel plate to a rolling conveying belt;
s2: conveying the high-carbon chromium bearing steel plate blank to the interior of a wire rod rolling mill device through a rolling conveying belt, so that the high-carbon chromium bearing steel plate blank is compressed and shaped through the wire rod rolling mill device, a fixed shape is formed, and the high-carbon chromium bearing steel plate blank is discharged;
s3: conveying the high-carbon chromium bearing steel plate blank to the inside of a cutting device through a conveying belt, cutting redundant parts, fixing and compressing the parts into specific shapes, and processing and polishing the parts through a primary high-temperature-resistant polishing device;
s4: processing a high-carbon chromium bearing steel plate blank by using the interior of a wire rolling machine for multiple times, gradually refining the wire rolling machine, forming a long strip shape, and slowly cooling the strip shape in a slow cooling device;
s5: and placing the cooled high-carbon chromium bearing steel plate blank in a straightening device for shaping, polishing by a polishing and grinding device, and conveying to the inside of a rolling device for rolling to form a strip shape.
Preferably, when the wire rod is rolled, the small-sized heating box is installed at the position, which is equidistant, outside the rolling transmission belt, the sensing device is installed inside the small-sized heating box, and the small-sized heating box is started when the high-carbon chromium bearing steel plate blank is used.
Preferably, the slow cooling device replaces a common quick cooling device, and the slow cooling device is placed in a specific area, so that the internal temperature of the slow cooling device can be freely controlled.
Preferably, a push rod is installed on the upper portion of the rolling transmission device, the push rod is fixed on a cross rod on the upper portion of the rolling transmission device, the moving speed of the push rod is the same as the running speed of the roller transmission device, the push rod is placed at the rear end of the high-carbon chromium bearing steel plate blank, and the push rod moves according to the advancing direction of the high-carbon chromium bearing steel plate blank.
Preferably, the wire rolling mill adopts a gradual reduction mode to gradually compress and form the high-carbon chromium bearing steel plate blank, and the whole device is arranged on the same straight line.
The beneficial effects are as follows:
1. through the externally mounted with device rolling transmission band have small-size incubator, during the use, fix around rolling transmission band through small-size incubator for in the use, but the sectional type heats for high carbon chromium bearing steel sheet embryo, makes when using, and sustainable heating keeps 1120 ℃ to device high carbon chromium bearing steel sheet embryo, makes the practicality when increasing the device use when using.
2. Through replacing rapid cooling device on the production line, make to change into slow cooling device, during the use, can progressively adjust through the inside temperature of slow cooling device, make when using, will place in batches inferior inside slow cooling device, make the mode that progressively reduces through the temperature to slow cooling device inside make to cool down inside, when making play the increasing device use, avoid high carbon chromium bearing steel plate blank to cause the phenomenon that causes the damage to internal structure characteristic at rapid cooling's in-process, make the security when increasing device uses.
Detailed Description
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 invention provides a technical scheme that: a wire rolling process for a high-carbon chromium bearing steel hot-rolled wire rod mainly comprises a heating furnace, a small-sized heating box, a rolling transmission belt, a push rod, a wire rolling machine, a slow cooling device, a cutting device, a rolling device, a polishing and grinding device, a straightening device, a high-carbon chromium bearing steel plate blank and the like.
The wire rod rolling process of the high-carbon chromium bearing steel hot-rolled wire rod comprises the processing steps of;
s1: placing a high-carbon chromium bearing steel plate blank in a heating furnace for heating, so that the heating temperature reaches 1120 ℃, and simultaneously conveying the heated steel plate to a rolling conveying belt;
s2: conveying the high-carbon chromium bearing steel plate blank to the interior of a wire rod rolling mill device through a rolling conveying belt, so that the high-carbon chromium bearing steel plate blank is compressed and shaped through the wire rod rolling mill device, a fixed shape is formed, and the high-carbon chromium bearing steel plate blank is discharged;
s3: conveying the high-carbon chromium bearing steel plate blank to the inside of a cutting device through a conveying belt, cutting redundant parts, fixing and compressing the parts into specific shapes, and processing and polishing the parts through a primary high-temperature-resistant polishing device;
s4: processing a high-carbon chromium bearing steel plate blank by using the interior of a wire rolling machine for multiple times, gradually refining the wire rolling machine, forming a long strip shape, and slowly cooling the strip shape in a slow cooling device;
s5: and placing the cooled high-carbon chromium bearing steel plate blank in a straightening device for shaping, polishing by a polishing and grinding device, and conveying to the inside of a rolling device for rolling to form a strip shape.
Wherein, when the wire rod is rolled, the small-sized heating boxes are arranged at the outer part of the rolling transmission belt at equal intervals, the sensing devices are arranged in the small-sized heating boxes, the small-sized heating boxes are started when the high-carbon chromium bearing steel plate blank is used, when in use, the phenomenon that the temperature of the high-carbon chromium bearing steel plate blank is lost in the use process due to the fact that the production chain is longer when the common device is used exists, so as to influence the later processing, the small-sized heating box is arranged outside the rolling transmission belt of the device, and when in use, the small-sized heating box is fixed around the rolling transmission belt, so that in the use process, the high-carbon chromium bearing steel plate blank can be heated in a sectional mode, so that the high-carbon chromium bearing steel plate blank can be continuously heated to be maintained at 1120 ℃ when the high-carbon chromium bearing steel plate blank is used, and the practicability of the device in use is improved when the high-carbon chromium bearing steel plate blank is used.
Wherein, the slow cooling device replaces common quick cooling device, the slow cooling device is through placing at specific area, but the inside temperature of slow cooling device is free control, when using, common device cools down through rapid cooling's such as water-cooling mode, make the phenomenon that expend with heat and contract with cold appear in the use, make the phenomenon of damaging can install high carbon chromium bearing steel sheet embryo inside to causing, make when using one side of device independently install the slow cooling device, cool down high carbon chromium bearing steel sheet embryo through the mode of progressively cooling down, avoid the rapid cooling in-process to cause the phenomenon of damage to the device simultaneously.
Wherein, the upper part of the rolling transmission device is provided with a push rod which is fixed on an upper cross rod of the rolling transmission device, the movement speed of the push rod is the same as the running speed of the roller transmission device, the push rod is arranged at the rear end of the high-carbon chromium bearing steel plate blank and moves according to the advancing direction of the high-carbon chromium bearing steel plate blank, when in use, the common device only drives the high-carbon chromium bearing steel plate blank to move through a roller, so that the phenomenon of insufficient applied traction force exists, therefore, the push rod is arranged on the upper part of the rolling transmission device, the push rod is fixed on the upper cross rod of the rolling transmission device, the movement speed of the push rod is the same as the running speed of the roller transmission device, when in use, the push rod can drive the high-carbon chromium bearing steel plate blank to move through a constant speed, so that the high-carbon chromium bearing steel plate blank is increased when in use, the function of the traction force is increased, so that the stability of the high-carbon chromium bearing steel plate blank in moving is increased when the high-carbon chromium bearing steel plate blank is used.
Wherein, the wire rod rolling machine adopts the mode that reduces step by step to carry out the gradual compression molding to high carbon chromium bearing steel plate blank, the device is whole to be placed on same straight line, when using, upwards install a plurality of high carbon chromium bearing steel plate blanks through production, make can process high carbon chromium bearing steel plate blank in proper order, when using through the wire rod rolling machine, extrude high carbon chromium bearing steel plate blank through the cylinder of inside specific shape, make and extend high carbon chromium bearing steel plate blank through inside specific shape, ductility when making increase high carbon chromium bearing steel plate blank use, make play right, when playing increase device use in the course of working simultaneously, the effect of lasting design, the device is fixed on same production line simultaneously, make the effect of stabilizing the processing operation when increasing the device use in the use.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 (6)
1. A wire rod rolling process of a high-carbon chromium bearing steel hot-rolled wire rod is characterized by comprising the following steps of: the wire rolling process of the high-carbon chromium bearing steel hot-rolled wire rod mainly uses devices comprising a heating furnace, a small-sized heating box, a rolling transmission belt, a push rod, a wire rolling machine, a slow cooling device, a cutting device, a rolling device, a polishing and grinding device, a straightening device, a high-carbon chromium bearing steel plate blank and the like.
2. The wire rod rolling process of the high-carbon chromium bearing steel hot-rolled wire rod according to claim 1, characterized in that: the processing steps of the wire rod rolling process of the high-carbon chromium bearing steel hot-rolled wire rod comprise;
s1: placing a high-carbon chromium bearing steel plate blank in a heating furnace for heating, so that the heating temperature reaches 1120 ℃, and simultaneously conveying the heated steel plate to a rolling conveying belt;
s2: conveying the high-carbon chromium bearing steel plate blank to the interior of a wire rod rolling mill device through a rolling conveying belt, so that the high-carbon chromium bearing steel plate blank is compressed and shaped through the wire rod rolling mill device, a fixed shape is formed, and the high-carbon chromium bearing steel plate blank is discharged;
s3: conveying the high-carbon chromium bearing steel plate blank to the inside of a cutting device through a conveying belt, cutting redundant parts, fixing and compressing the parts into specific shapes, and processing and polishing the parts through a primary high-temperature-resistant polishing device;
s4: processing a high-carbon chromium bearing steel plate blank by using the interior of a wire rolling machine for multiple times, gradually refining the wire rolling machine, forming a long strip shape, and slowly cooling the strip shape in a slow cooling device;
s5: and placing the cooled high-carbon chromium bearing steel plate blank in a straightening device for shaping, polishing by a polishing and grinding device, and conveying to the inside of a rolling device for rolling to form a strip shape.
3. The wire rod rolling process of the high-carbon chromium bearing steel hot-rolled wire rod according to claim 1, characterized in that: when the wire rod is rolled, the small-size incubator is installed to the equidistant position of transmission band outside will rolling, and the internally mounted of small-size incubator has induction system, and small-size incubator starts when high carbon chromium bearing steel plate blank uses.
4. The wire rod rolling process of the high-carbon chromium bearing steel hot-rolled wire rod according to claim 1, characterized in that: the slow cooling device replaces a common quick cooling device, and the internal temperature of the slow cooling device can be freely controlled by placing the slow cooling device in a specific area.
5. The wire rod rolling process of the high-carbon chromium bearing steel hot-rolled wire rod according to claim 1, characterized in that: the push rod is arranged on the upper portion of the rolling transmission device, the push rod is fixed on a cross rod on the upper portion of the rolling transmission device, the moving speed of the push rod is the same as the running speed of the roller transmission device, the push rod is placed at the rear end of the high-carbon chromium bearing steel plate blank, and the push rod moves according to the advancing direction of the high-carbon chromium bearing steel plate blank.
6. The wire rod rolling process of the high-carbon chromium bearing steel hot-rolled wire rod according to claim 1, characterized in that: the wire rolling machine adopts a gradual reduction mode to gradually compress and form the high-carbon chromium bearing steel plate blank, and the whole device is arranged on the same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011174542.2A CN112275829A (en) | 2020-10-28 | 2020-10-28 | Wire rolling process of high-carbon chromium bearing steel hot-rolled wire rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011174542.2A CN112275829A (en) | 2020-10-28 | 2020-10-28 | Wire rolling process of high-carbon chromium bearing steel hot-rolled wire rod |
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| Publication Number | Publication Date |
|---|---|
| CN112275829A true CN112275829A (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011174542.2A Pending CN112275829A (en) | 2020-10-28 | 2020-10-28 | Wire rolling process of high-carbon chromium bearing steel hot-rolled wire rod |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205949486U (en) * | 2016-08-17 | 2017-02-15 | 天津昊坤亿达金属制品有限公司 | Steel pushing device |
| CN106825044A (en) * | 2017-03-27 | 2017-06-13 | 北京国网富达科技发展有限责任公司 | A kind of TiAl alloy plate hot rolling device and hot-rolling method |
-
2020
- 2020-10-28 CN CN202011174542.2A patent/CN112275829A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205949486U (en) * | 2016-08-17 | 2017-02-15 | 天津昊坤亿达金属制品有限公司 | Steel pushing device |
| CN106825044A (en) * | 2017-03-27 | 2017-06-13 | 北京国网富达科技发展有限责任公司 | A kind of TiAl alloy plate hot rolling device and hot-rolling method |
Non-Patent Citations (2)
| Title |
|---|
| 何军: "攀长钢特殊钢棒线材连轧生产线工艺设备特点", 《钢铁技术》 * |
| 张俊山: "我国第一条阀门钢高速线材轧机的工艺特点", 《轧钢》 * |
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Application publication date: 20210129 |