CN102699205A - Fixed outer diameter combined die for welded steel tubes - Google Patents
Fixed outer diameter combined die for welded steel tubes Download PDFInfo
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- CN102699205A CN102699205A CN2012101894708A CN201210189470A CN102699205A CN 102699205 A CN102699205 A CN 102699205A CN 2012101894708 A CN2012101894708 A CN 2012101894708A CN 201210189470 A CN201210189470 A CN 201210189470A CN 102699205 A CN102699205 A CN 102699205A
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Abstract
The invention discloses a fixed outer diameter combined die for welded steel tubes and relates to the field of equipment for producing the welded steel tubes. The fixed outer diameter combined die comprises an upper die body and a lower die body and is characterized in that an upper die core is fixed in the upper die body; a lower die core is fixed in the lower die body; the upper die core comprises a plurality of layers of upper die core bodies of which the thicknesses are different; a plurality of layers of upper die core bodies are superposed and fixed layer by layer; the upper die core bodies are semicircular; the lower die core comprises a plurality of layers of lower die core bodies of which the thicknesses are different; a plurality of layers of lower die core bodies are superposed and fixed layer by layer; and the lower die core bodies are semicircular. The fixed outer diameter combined die is simple in structure and reasonable in design. The die cores of an upper die and a lower die are formed by combining the die core bodies which are superposed layer by layer, and the size of a die cavity can be changed by increasing or reducing the number of the die core bodies. The fixed outer diameter combined die can be used for producing steel pipes of different specifications, the die core bodies can be assembled and fixed conveniently, the frequency of replacing dies is reduced, and the workload of workers is reduced.
Description
Technical field:
The present invention relates to welded still pipe production equipment field, relate in particular to a kind of welded still pipe and decide the external diameter assembling die.
Background technology:
Welded still pipe is also claimed welded tube, is the steel pipe of processing through welding behind the cans with steel plate or band steel.The welded still pipe production technology is simple, and production efficiency is high, and description is many, and equipment money is few, but common intensity is lower than seamless steel pipe.
Since the thirties in 20th century, along with developing rapidly and the progress of welding and inspection technology of quality strip steel rolling production, weldquality improves constantly, and the description of welded still pipe is increasing, and has replaced seamless steel pipe in growing field.Welded still pipe is divided into ERW and spiral welded pipe by the form of weld seam.The intensity of spiral welded pipe is generally high than ERW, can produce the bigger welded tube of caliber with narrower blank, can also use the blank of same width to produce the different welded tube of caliber.But compare with the vertical masonry joint pipe of equal length, fusion length increases by 30 ~ 100%, and speed of production is lower.The ERW production technology is simple, and production efficiency is high, and cost is low, and development is very fast.
The welded still pipe production process need be decided external diameter with steel plate or band steel through mould through the steel pipe of cans.In the prior art, the mold radius of use is fixed, and the steel pipe of producing different size will use decides the external diameter mould accordingly, and die change is frequent, and workload is big, and the number of molds that needs is many, and the die sinking cost is big.
Summary of the invention:
Technical problem to be solved by this invention is to overcome the defective of prior art, provides a kind of welded still pipe of die cavity size variable to decide the external diameter assembling die.
Technical problem to be solved by this invention adopts following technical scheme to realize.
A kind of welded still pipe is decided the external diameter assembling die, comprises upper die body and lower mold body, it is characterized in that: be fixed with upper mold core in the said upper die body, be fixed with lower mold core in the said lower mold body.
Said upper mold core comprises the multilayer patrix core body that thickness does not wait, and multilayer patrix core body successively superposes fixing.
Said patrix core body is semicircle.
Said lower mold core comprises the multilayer counterdie core body that thickness does not wait, and multilayer counterdie core body successively superposes fixing.
Said counterdie core body is semicircle.
The present invention is simple in structure, reasonable in design; The core rod of mould combines through the core rod body that is layering up and down; Quantity through increase and decrease core rod body can change the die cavity size, can be used for producing the steel pipe of different size, and the core rod body installs and fixes conveniently; Reduce the die change number of times, reduced workman's workload.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
The specific embodiment:
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with concrete diagram, further set forth the present invention.
As shown in Figure 1, a kind of welded still pipe is decided the external diameter assembling die, comprises upper die body 1 and lower mold body 4; Be fixed with upper mold core 2 in the upper die body 1, be fixed with lower mold core 3 in the lower mold body 4, upper mold core 2 comprises the multilayer patrix core body 21 that thickness does not wait; Multilayer patrix core body 21 successively superposes fixing, and patrix core body 21 is semicircle, and lower mold core 3 comprises the multilayer counterdie core body 31 that thickness does not wait; Multilayer counterdie core body 31 successively superposes fixing, and counterdie core body 31 is semicircle.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (5)
1. a welded still pipe is decided the external diameter assembling die, comprises upper die body and lower mold body, it is characterized in that: be fixed with upper mold core in the said upper die body, be fixed with lower mold core in the said lower mold body.
2. welded still pipe according to claim 1 is decided the external diameter assembling die, it is characterized in that: said upper mold core comprises the multilayer patrix core body that thickness does not wait, and multilayer patrix core body successively superposes fixing.
3. welded still pipe according to claim 2 is decided the external diameter assembling die, it is characterized in that: said patrix core body is for semicircle.
4. welded still pipe according to claim 1 is decided the external diameter assembling die, it is characterized in that: said lower mold core comprises the multilayer counterdie core body that thickness does not wait, and multilayer counterdie core body successively superposes fixing.
5. welded still pipe according to claim 4 is decided the external diameter assembling die, it is characterized in that: said counterdie core body is for semicircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101894708A CN102699205A (en) | 2012-06-11 | 2012-06-11 | Fixed outer diameter combined die for welded steel tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101894708A CN102699205A (en) | 2012-06-11 | 2012-06-11 | Fixed outer diameter combined die for welded steel tubes |
Publications (1)
| Publication Number | Publication Date |
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| CN102699205A true CN102699205A (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101894708A Pending CN102699205A (en) | 2012-06-11 | 2012-06-11 | Fixed outer diameter combined die for welded steel tubes |
Country Status (1)
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| CN (1) | CN102699205A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141574A (en) * | 2015-04-28 | 2016-11-23 | 五冶集团上海有限公司 | The preparation method of stainless steel coil of nozzle plate of coke oven |
| CN107999635A (en) * | 2018-01-22 | 2018-05-08 | 吉林大学 | The wrinkle resistant finishing die of spherical part and application |
| CN111941920A (en) * | 2020-08-17 | 2020-11-17 | 曹振宇 | Surrounding edge shaping structure and method for packaging box |
| CN112058955A (en) * | 2019-06-11 | 2020-12-11 | 宝山钢铁股份有限公司 | Straightening die suitable for large-diameter straight seam welded steel pipe |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4483167A (en) * | 1981-07-14 | 1984-11-20 | Kabushiki Kaisha Sanyo Seiki | Forming rolls for use in the fabrication of welded tubes |
| CN2595472Y (en) * | 2002-12-03 | 2003-12-31 | 袁厚之 | Composite roller |
| CN101670368A (en) * | 2009-09-27 | 2010-03-17 | 大连三高重工设备有限公司 | Equal rigid frame of tube-welding machine unit |
| CN201997658U (en) * | 2011-03-16 | 2011-10-05 | 武汉巨迪金属管业有限公司 | Welded joint forging and pressing die of metal thin-wall welded pipe |
| CN202639082U (en) * | 2012-06-11 | 2013-01-02 | 安徽祥宇钢业集团有限公司 | Combined mould for sizing outer diameters of welded steel tubes |
-
2012
- 2012-06-11 CN CN2012101894708A patent/CN102699205A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4483167A (en) * | 1981-07-14 | 1984-11-20 | Kabushiki Kaisha Sanyo Seiki | Forming rolls for use in the fabrication of welded tubes |
| CN2595472Y (en) * | 2002-12-03 | 2003-12-31 | 袁厚之 | Composite roller |
| CN101670368A (en) * | 2009-09-27 | 2010-03-17 | 大连三高重工设备有限公司 | Equal rigid frame of tube-welding machine unit |
| CN201997658U (en) * | 2011-03-16 | 2011-10-05 | 武汉巨迪金属管业有限公司 | Welded joint forging and pressing die of metal thin-wall welded pipe |
| CN202639082U (en) * | 2012-06-11 | 2013-01-02 | 安徽祥宇钢业集团有限公司 | Combined mould for sizing outer diameters of welded steel tubes |
Non-Patent Citations (1)
| Title |
|---|
| 贾凤翔: "《不锈钢焊接钢管》", 31 January 2007, article "《不锈钢焊管的矫直和平头》" * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141574A (en) * | 2015-04-28 | 2016-11-23 | 五冶集团上海有限公司 | The preparation method of stainless steel coil of nozzle plate of coke oven |
| CN107999635A (en) * | 2018-01-22 | 2018-05-08 | 吉林大学 | The wrinkle resistant finishing die of spherical part and application |
| CN107999635B (en) * | 2018-01-22 | 2021-09-28 | 吉林大学 | Spherical piece crease-resistant forming die and application |
| CN112058955A (en) * | 2019-06-11 | 2020-12-11 | 宝山钢铁股份有限公司 | Straightening die suitable for large-diameter straight seam welded steel pipe |
| CN111941920A (en) * | 2020-08-17 | 2020-11-17 | 曹振宇 | Surrounding edge shaping structure and method for packaging box |
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Application publication date: 20121003 |