CN110666014A - Laying pipe bending process - Google Patents
Laying pipe bending process Download PDFInfo
- Publication number
- CN110666014A CN110666014A CN201910933829.XA CN201910933829A CN110666014A CN 110666014 A CN110666014 A CN 110666014A CN 201910933829 A CN201910933829 A CN 201910933829A CN 110666014 A CN110666014 A CN 110666014A
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- CN
- China
- Prior art keywords
- pipe
- blank
- laying
- spinning
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
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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
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/22—Auxiliary equipment, e.g. positioning devices
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a laying pipe bending process, which comprises the following steps: a. heating and insulating the spinning pipe blank; b. heating the blank of the spinning pipe at 950 +/-30 ℃, and adjusting the heating time according to the blank heating requirement: when the initial rolling temperature of the steel grade in the furnace is less than 1000 ℃, the heating time is 8min +/-1 min; when the initial rolling temperature of the steel grade in the furnace is more than 1000 ℃, the heating time is 7min +/-1 min; c. bending the spinning pipe blank by using a pipe bending machine; d. and naturally cooling the bent spinning pipe blank. The laying pipe bending process disclosed by the invention has the advantages of simple steps, easiness in implementation, no need of cooling equipment such as water cooling or air cooling and the like, improvement on laying pipe bending efficiency, convenience in workshop production, convenience in ensuring the consistency of finished laying pipes bent by workshop workers and production quality.
Description
Technical Field
The invention relates to the technical field of a laying pipe bending process, in particular to a laying pipe bending process.
Background
A laying pipe is a very important device in a high-speed wire rod production line, and is a consumable product in a high-speed wire rod production line because it becomes a wire rod after passing through a rotating laying pipe from a furnace in the high-speed wire rod production line, and can be regarded as a die, and the laying pipe needs to be replaced at regular time when the high-speed wire rod production reaches a certain amount. In the actual production process, workshop workers need to bend the laying pipe frequently to ensure production. Workshop workers usually do not have a fixed bending process in the bending process, so that the finished product quality of the laying pipe is easily uneven, the bending process of the existing laying pipe bending process is complex, large cooling equipment is required, and the high-frequency practical requirement of the laying pipe in the workshop is not met; the spinning pipe blank has various pipes with different specifications and different pipe rolling temperatures.
Disclosure of Invention
The invention provides a laying pipe bending process for solving the problems, and the specific technical scheme is as follows:
a laying pipe bending process comprises the following steps:
a. heating and insulating the spinning pipe blank;
b. heating the blank of the spinning pipe at 950 +/-30 ℃, and adjusting the heating time according to the specification requirement of the blank:
when the initial rolling temperature of the steel grade in the furnace is less than 1000 ℃, the heating time is 8min +/-1 min,
when the initial rolling temperature of the steel grade in the furnace is more than 1000 ℃, the heating time is 7min +/-1 min;
c. bending the spinning pipe blank by using a pipe bending machine;
d. and naturally cooling the bent spinning pipe blank.
As a modification of the scheme, the weight of the spinning pipe blank in the step a is 27 plus or minus 0.1kg, and the mass of the final spinning pipe in the step d is 27 plus or minus 0.1 kg.
In the step c, when the laying pipe is bent, the distance between the clamping blocks on the pipe bending machine is 70mm +/-2 mm.
In the step a, the heat preservation temperature of the spinning pipe blank is 500 ℃, and the heat preservation time is not less than 5 hours.
As a modification of this embodiment, in step c, the bending of the laying pipe blank is completed within 5 min.
Compared with the prior art, the technical scheme adopted by the invention has the technical effects that:
1. the laying pipe bending process disclosed by the invention has the advantages of simple steps, easiness in implementation, no need of cooling equipment such as water cooling or air cooling and the like, improvement on laying pipe bending efficiency, convenience in workshop production, convenience in ensuring the consistency of finished laying pipes bent by workshop workers and production quality.
2. According to the bending process of the laying pipe, disclosed by the invention, different heat preservation times are adopted for pipes with different specifications according to different blanks, so that the pipes with different specifications can achieve a better use effect.
Detailed Description
The following describes embodiments of the present invention in detail.
Example 1
A laying pipe bending process comprises the following steps:
a. heating and insulating the spinning pipe blank, wherein the weight of a single spinning pipe blank is 27 +/-0.1 kg, the starting rolling temperature of the steel used by the spinning pipe blank is 900-;
b. heating the blank of the spinning pipe at 950 ℃ for 8.5 min;
c. bending the spinning pipe blank by using a pipe bending machine; when the laying pipe is bent, the distance between the fixture blocks on the pipe bender is 70mm, and the bending process is finished within 5 min;
d. and naturally cooling the bent spinning pipe blank to finally obtain the spinning pipe with the mass of 27 +/-0.1 kg.
Example 2
A laying pipe bending process comprises the following steps:
a. heating and insulating the spinning pipe blank, wherein the weight of a single spinning pipe blank is 27 +/-0.1 kg, the starting rolling temperature of the steel used by the spinning pipe blank is 1000-;
b. heating the spinning pipe blank at 950 +/-30 ℃ for 7 min;
c. bending the spinning pipe blank by using a pipe bending machine; when the laying pipe is bent, the distance between the fixture blocks on the pipe bender is 70mm, and the bending process is finished within 5 min;
d. and naturally cooling the bent spinning pipe blank to finally obtain the spinning pipe with the mass of 27 +/-0.1 kg.
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 changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (5)
1. A laying pipe bending process is characterized by comprising the following steps:
a. heating and insulating the spinning pipe blank;
b. heating the blank of the spinning pipe at 950 +/-30 ℃, and adjusting the heating time according to the blank heating requirement:
when the initial rolling temperature of the steel grade in the furnace is less than 1000 ℃, the heating time is 8min +/-1 min,
when the initial rolling temperature of the steel grade in the furnace is more than 1000 ℃, the heating time is 7min +/-1 min;
c. bending the spinning pipe blank by using a pipe bending machine;
d. and naturally cooling the bent spinning pipe blank.
2. The laying pipe bending process according to claim 1, wherein the laying pipe billet weight in a is 27 ± 0.1kg, and the final laying pipe mass in step d is 27 ± 0.1 kg.
3. The laying pipe bending process according to claim 2, wherein in said step c, the spacing between the blocks of the pipe bender is 70mm ± 2mm during bending of the laying pipe.
4. The laying pipe bending process according to claim 3, wherein in step a, the laying pipe blank is kept at a temperature of 500 ℃ for not less than 5 hours.
5. The laying pipe bending process according to claim 4, wherein in said step c, laying pipe billet bending is completed within 5 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910933829.XA CN110666014A (en) | 2019-09-29 | 2019-09-29 | Laying pipe bending process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910933829.XA CN110666014A (en) | 2019-09-29 | 2019-09-29 | Laying pipe bending process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110666014A true CN110666014A (en) | 2020-01-10 |
Family
ID=69080159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910933829.XA Pending CN110666014A (en) | 2019-09-29 | 2019-09-29 | Laying pipe bending process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110666014A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101157974A (en) * | 2007-10-18 | 2008-04-09 | 武汉钢铁(集团)公司 | Spinning tube bending nitrogen cooling process |
| CN106311831A (en) * | 2015-07-10 | 2017-01-11 | 北京京诚瑞信长材工程技术有限公司 | Pipe bender |
| CN110064674A (en) * | 2019-04-20 | 2019-07-30 | 北京杜根鸿运科技发展有限公司 | A kind of compound spinneret and its manufacturing method |
| CN110205469A (en) * | 2019-06-27 | 2019-09-06 | 山东莱钢永锋钢铁有限公司 | A kind of spinneret manufacture craft |
-
2019
- 2019-09-29 CN CN201910933829.XA patent/CN110666014A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101157974A (en) * | 2007-10-18 | 2008-04-09 | 武汉钢铁(集团)公司 | Spinning tube bending nitrogen cooling process |
| CN106311831A (en) * | 2015-07-10 | 2017-01-11 | 北京京诚瑞信长材工程技术有限公司 | Pipe bender |
| CN110064674A (en) * | 2019-04-20 | 2019-07-30 | 北京杜根鸿运科技发展有限公司 | A kind of compound spinneret and its manufacturing method |
| CN110205469A (en) * | 2019-06-27 | 2019-09-06 | 山东莱钢永锋钢铁有限公司 | A kind of spinneret manufacture craft |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200110 |
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| RJ01 | Rejection of invention patent application after publication |