CN202447407U - Mould special for cold-drawing steel pipe - Google Patents
Mould special for cold-drawing steel pipe Download PDFInfo
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- CN202447407U CN202447407U CN2012200654420U CN201220065442U CN202447407U CN 202447407 U CN202447407 U CN 202447407U CN 2012200654420 U CN2012200654420 U CN 2012200654420U CN 201220065442 U CN201220065442 U CN 201220065442U CN 202447407 U CN202447407 U CN 202447407U
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- steel pipe
- sizing
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Abstract
The utility model discloses a mould special for a cold-drawing steel pipe, comprising a mould body formed by polycrystalline diamond. The mould body is internally provided with a mould hole which is penetrated by a steel pipe and penetrates through both ends of the mould body; the mould hole is provided with an entrance section, a sizing section and an exit section, wherein the diameter of the outer end of the entrance section is more than that of the inner end, the inner end of the entrance section is connected with the sizing section, the sizing section is connected with the exit section, and the edge of the longitudinal tangent plane of the entrance section is of an arc shape and tangent with the inner wall of the sizing section. The mould is formed by adopting the polycrystalline diamond, the rigidity of the mould is greatly higher than that of a hard alloy, and therefore, the surface of a drawn steel pipe has higher smooth degree, the drawing speed can be increased, the production time is shortened, and the service life of the mould is prolonged.
Description
Technical field
The utility model relates to steel tube fabrication technique, relates in particular to a kind of cold drawing steel tube particular manufacturing craft.
Background technology
Cold drawing steel tube is dimensional accuracy height and the good accurate cold-drawing seamless pipe of surface smoothness that is used for frame for movement, hydraulic test.Select accurate seamless pipe manufacturing machine structure or hydraulic test etc. for use, can practice thrift machining man-hour greatly, improve stock utilization, help simultaneously improving the quality of products.Obtain the higher seamless pipe with better quality of dimensional accuracy, must adopt cold rolling, cold-drawn or method that both combine.Cold rollingly on cluster mill, carry out usually, steel pipe is rolling in becoming the annular pass of being formed in section circle hole groove and motionless taper top.Cold-drawn is carried out on the strand formula of 0.5～100T or double-chain drawbench usually.Need select suitable mould for use in the cold drawing steel tube process of tube plug drawing mill; Mould when design, be according to material, wall thickness, surface appearance and the mechanical performance of blank different, design every time the compression surplus and the size and the pass of mould therefor; Especially want emphasis to consider relative position and the deformation characteristics thereof in mould in the steel pipe process of tube plug drawing mill; To reduce draw power, reduce the mould loss, improve die life.Therefore, production high accuracy cold drawing steel tube requires mould that high strength, high tenacity and high-wearing feature are arranged, and existing mould steel obviously can not satisfy above-mentioned requirements, is difficult to produce high-precision cold drawing steel tube.
The utility model content
The purpose of the utility model provides a kind of cold drawing steel tube particular manufacturing craft, improves the surface smoothness of cold drawing steel tube, promotes drawing efficient, improves die life, reduces production costs.
The utility model is that the technical scheme that its technical problem of solution is adopted is,
A kind of cold drawing steel tube particular manufacturing craft; Comprise a polycrystalline diamond forming mould body, have the nib that supplies steel pipe to pass through in this die ontology, nib runs through the die ontology two ends; Said nib has entrance, sizing section and outlet section; The outer end diameter of entrance is greater than inner diameter, and the inner of entrance is connected with sizing section, and sizing section is connected with outlet section;
Particularly, the vertical section edge of said entrance is a circular arc, and is tangent with the sizing section inwall.
The advantage of the utility model is that this mould adopts the polycrystalline diamond moulding, and its hardness is much higher than carbide alloy, and therefore, the steel tube surface that institute's draw is gone out has higher fineness, and can improve draw speed, shortens the production time.
Description of drawings
Fig. 1 is the profile of the cold drawing steel tube particular manufacturing craft of the utility model proposition.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand with effect and understand, below in conjunction with illustrating and specific embodiment, further set forth the utility model.
As shown in Figure 1; The cold drawing steel tube particular manufacturing craft that the utility model proposes comprises by polycrystalline diamond forming mould body 100; Die ontology 100 is located in the die sleeve 200, has the nib 110 that supplies steel pipe to pass through in this die ontology 100, and nib 110 runs through die ontology 100 two ends; Said nib 110 has entrance 111, sizing section 112 and outlet section 113; The outer end diameter of entrance 111 is greater than inner diameter, and the inner of entrance 111 is connected with sizing section 112, and sizing section 112 is connected with outlet section 113; The vertical section edge of said entrance 111 is a circular arc, and is tangent with the inwall of sizing section 112.
In the present embodiment, in order to produce the steel pipe that diameter is 22mm, the diameter of sizing section 112 is set to 22mm, and the length of sizing section 112 is set to 6mm.
This mould adopts the polycrystalline diamond moulding, and its hardness is much higher than carbide alloy, and therefore, the steel tube surface that institute's draw is gone out has higher fineness, and can improve draw speed, shortens the production time.
More than show and described the advantage of basic principle, principal character and the utility model of the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; The utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (2)
1. a cold drawing steel tube particular manufacturing craft is characterized in that, comprises a polycrystalline diamond forming mould body; Has the nib that supplies steel pipe to pass through in this die ontology; Nib runs through the die ontology two ends, and said nib has entrance, sizing section and outlet section, and the outer end diameter of entrance is greater than inner diameter; The inner of entrance is connected with sizing section, and sizing section is connected with outlet section.
2. a kind of cold drawing steel tube particular manufacturing craft according to claim 1 is characterized in that the vertical section edge of said entrance is a circular arc, and tangent with the sizing section inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200654420U CN202447407U (en) | 2012-02-27 | 2012-02-27 | Mould special for cold-drawing steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200654420U CN202447407U (en) | 2012-02-27 | 2012-02-27 | Mould special for cold-drawing steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202447407U true CN202447407U (en) | 2012-09-26 |
Family
ID=46863302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200654420U Expired - Lifetime CN202447407U (en) | 2012-02-27 | 2012-02-27 | Mould special for cold-drawing steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202447407U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521614A (en) * | 2013-10-17 | 2014-01-22 | 常州常宝精特钢管有限公司 | Working face molded line of inner cavity of heading die of steel tube heading machine |
| CN104741400A (en) * | 2015-04-13 | 2015-07-01 | 江苏华程工业制管股份有限公司 | Inequilateral empty sinking mold for rectangular specially-shaped steel pipe |
| CN105107857A (en) * | 2015-08-26 | 2015-12-02 | 山东建筑大学 | Novel preparation method for high-strength nanocrystalline steel pipe |
| CN109433851A (en) * | 2018-11-07 | 2019-03-08 | 南通长海铝业有限公司 | The moulding process and aluminium-alloy pipe of aluminium-alloy pipe |
| CN109648266A (en) * | 2018-12-29 | 2019-04-19 | 山东腾达紧固科技股份有限公司 | A kind of rectangle adjusting nut processing technology |
| WO2022099627A1 (en) * | 2020-11-13 | 2022-05-19 | 盐城利盐新材料有限公司 | Composite die for improving cold drawing deformation |
-
2012
- 2012-02-27 CN CN2012200654420U patent/CN202447407U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521614A (en) * | 2013-10-17 | 2014-01-22 | 常州常宝精特钢管有限公司 | Working face molded line of inner cavity of heading die of steel tube heading machine |
| CN103521614B (en) * | 2013-10-17 | 2015-11-04 | 常州常宝精特钢管有限公司 | Steel pipe heading machine band heading mold inner chamber working face molded line |
| CN104741400A (en) * | 2015-04-13 | 2015-07-01 | 江苏华程工业制管股份有限公司 | Inequilateral empty sinking mold for rectangular specially-shaped steel pipe |
| CN104741400B (en) * | 2015-04-13 | 2016-08-17 | 江苏华程工业制管股份有限公司 | A kind of rectangle steel tubes inequilateral empty sinking mould |
| CN105107857A (en) * | 2015-08-26 | 2015-12-02 | 山东建筑大学 | Novel preparation method for high-strength nanocrystalline steel pipe |
| CN109433851A (en) * | 2018-11-07 | 2019-03-08 | 南通长海铝业有限公司 | The moulding process and aluminium-alloy pipe of aluminium-alloy pipe |
| CN109648266A (en) * | 2018-12-29 | 2019-04-19 | 山东腾达紧固科技股份有限公司 | A kind of rectangle adjusting nut processing technology |
| CN109648266B (en) * | 2018-12-29 | 2022-02-08 | 山东腾达紧固科技股份有限公司 | Rectangular adjusting nut machining process |
| WO2022099627A1 (en) * | 2020-11-13 | 2022-05-19 | 盐城利盐新材料有限公司 | Composite die for improving cold drawing deformation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI FENGXIAN STEEL TUBE CO., LTD. Free format text: FORMER NAME: FENGXIAN STEEL TUBING MILL, SHANGHAI |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 201400, 858, five-star village, South Bridge Town, Shanghai, Fengxian District Patentee after: SHANGHAI FENGXIAN STEEL PIPE FACTORY Patentee after: Shanghai Shenzhou Yangguang Special Tubes Company Limited (SYT) Address before: 201400, 858, five-star village, South Bridge Town, Shanghai, Fengxian District Patentee before: Shanghai Fengxian District Steel Pipe Factory Patentee before: Shanghai Shenzhou Yangguang Special Tubes Company Limited (SYT) |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120926 |