CN101704021A - Molding roller of thin-wall titanium welding pipe - Google Patents
Molding roller of thin-wall titanium welding pipe Download PDFInfo
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- CN101704021A CN101704021A CN200910044722A CN200910044722A CN101704021A CN 101704021 A CN101704021 A CN 101704021A CN 200910044722 A CN200910044722 A CN 200910044722A CN 200910044722 A CN200910044722 A CN 200910044722A CN 101704021 A CN101704021 A CN 101704021A
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- molding roller
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Abstract
The invention discloses a molding roller of a thin-wall titanium welding pipe with long service life, comprising a precise molding roller pair and a sizing roller pair which are made of copper alloy material. The molding roller of the thin-wall titanium welding pipe is characterized in that a molding parts (2) of molding rollers (1) which correspond to welding lines and are in the precise molding roller pair and the sizing roller pair are made of wearable material which is not compatible with titanium material. In the invention, the molding part or an accumulating tumor part of the molding rollers is made of Cr12Mov alloy material so that the difficult problem that the surface of the titanium welding pipe is easily scratched is solved, the problem of scratching the titanium welding pipe due to high strength of the welding lines and weld beadings is also solved, the service life of the roller is improved to be more than three times that of the original molding roller, and the Cr12Mov alloy material is not compatible with the titanium material so as to reduce the possibility of generating accumulating tumors on the surface of the molding roller.
Description
Technical field:
The present invention relates to a kind of production of thin-wall titanium welding pipe, specifically a kind of molding roller of thin-wall titanium welding pipe.
Background technology:
Along with the continuous development of China's nuclear power and thermoelectricity, the application of thin-wall titanium welding pipe more and more widely.It is to improve on the stainless steel welded pipe Equipment Foundations that the equipment of titanium welding pipe is used, and basic principle is similar, but its processing technology is different, and most importantly there is very big difference in molding roller.Because titanium and stainless steel exist very big different on material; this metal specific strength of thin-walled titanium band height; yield strength height; elasticity is big; be difficult to moulding; the former mother metal height of the hardness ratio of weld seam; therefore acquire a certain degree of difficulty on PASS DESIGN; the most scabrous problem of titanium welding pipe is exactly a surface tear; this be since on each point of pass its diameter difference, roller its rotating speed when rotated is the same, but its linear velocity difference of every; roller just exists speed difference with the pipe that welds like this, and the metallic dust buildup that sticks on the roller will be the pipe scuffing that welds.At present, domestic thin-wall titanium welding pipe generally adopts Cu alloy material with molding roller, preferably resolves the surface tear problem in the thin-wall titanium welding pipe production.But, in process of production, because thin-wall titanium welding pipe and molding roller surface mutual friction mutually, traditional copper alloy roll weares and teares easily, service life is short, and because the former mother metal height of hardness ratio of weld seam has overlap to form when welding is unstable, its intensity is than copper alloy roll height, is easy to generate buildup on the molding roller surface corresponding with weld seam and scratches the surface of thin-wall titanium welding pipe.
Summary of the invention:
The molding roller of thin-wall titanium welding pipe that the purpose of this invention is to provide a kind of long service life.
The present invention adopts following technical scheme to realize its goal of the invention, a kind of molding roller of thin-wall titanium welding pipe, it comprises that the precisive shaped roll made by Cu alloy material is right to, sizing roll, and the precisive shaped roll to the forming part of, the sizing roll centering molding roller corresponding with weld seam is and the incompatible high-abrasive material of titanium material.
Because buildup generally is created in the buildup district in the forming part, therefore, the buildup portion in the forming part of the present invention is and the incompatible high-abrasive material of titanium material.
High-abrasive material of the present invention is chrome-nickel steel or alloy tool steel.Described high-abrasive material is an alloy tool steel Cr12Mov alloy.
Owing to adopt technique scheme, the present invention has realized goal of the invention preferably, forming part or buildup portion at molding roller adopt the Cr12Mov alloy material, both solved the difficult problem of titanium welding pipe surface tear, solved also simultaneously that high and overlap is to the scuffing of titanium welding pipe because of weld strength, in the service life of having improved roll, be more than three times of former molding roller service life, and Cr12Mov alloy material and titanium material are not affine, have reduced the generation of molding roller surface buildup.
Description of drawings:
Fig. 1 is the structural representation of the embodiment of the invention 1;
Fig. 2 is the structural representation of the embodiment of the invention 2.
The specific embodiment:
The invention will be further described below in conjunction with accompanying drawing.
Embodiment 1:
As shown in Figure 1, a kind of molding roller of thin-wall titanium welding pipe, it comprises that the precisive shaped roll made by Cu alloy material is right to, sizing roll, and the precisive shaped roll to the forming part 2 of, the sizing roll centering molding roller 1 corresponding with weld seam is and the incompatible high-abrasive material of titanium material.
Cu alloy material is adopted at molding roller of the present invention 1 two ends, and forming part 2 adopts and the incompatible high-abrasive material of titanium material (present embodiment is an alloy tool steel Cr12Mov alloy material).The Cr12Mov material carries out Quenching Treatment, and hardness is HRC60, after two flour millings finish grind, carries out integral body processing after clamp it with Cu alloy material on both sides and makes molding roller 1.Because the hardness and the rigidity of Cr12Mov alloy material are better than Cu alloy material, improved the service life of molding roller 1, be more than three times of former molding roller 1 service life, and Cr12Mov alloy material and titanium material are not affine, have reduced the generation of molding roller 1 surperficial buildup.
Embodiment 2:
Because buildup generally is created in zone corresponding with the titanium welding pipe weld seam in the forming part 2, i.e. buildup portion 3, therefore, the buildup portion 3 in the forming part 2 of the present invention for and the incompatible high-abrasive material of titanium material (present embodiment is the chrome-nickel steel material).Surplus with embodiment 1.
Claims (4)
1. molding roller of thin-wall titanium welding pipe, it comprises that the precisive shaped roll made by Cu alloy material is right to, sizing roll, it is characterized in that the precisive shaped roll to the forming part [2] of, the sizing roll centering molding roller [1] corresponding with weld seam for and the incompatible high-abrasive material of titanium material.
2. molding roller of thin-wall titanium welding pipe according to claim 1 is characterized in that the buildup portion [3] in the described forming part [2] is and the incompatible high-abrasive material of titanium material.
3. molding roller of thin-wall titanium welding pipe according to claim 1 and 2 is characterized in that described high-abrasive material is chrome-nickel steel or alloy tool steel.
4. molding roller of thin-wall titanium welding pipe according to claim 3 is characterized in that described high-abrasive material is an alloy tool steel Cr12Mov alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910044722A CN101704021A (en) | 2009-11-06 | 2009-11-06 | Molding roller of thin-wall titanium welding pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910044722A CN101704021A (en) | 2009-11-06 | 2009-11-06 | Molding roller of thin-wall titanium welding pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101704021A true CN101704021A (en) | 2010-05-12 |
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ID=42374312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910044722A Pending CN101704021A (en) | 2009-11-06 | 2009-11-06 | Molding roller of thin-wall titanium welding pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101704021A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972777A (en) * | 2010-10-22 | 2011-02-16 | 李志雄 | Titanium welded pipe and stainless steel welded pipe forming roller and surface treatment method thereof |
| CN105234215A (en) * | 2015-11-03 | 2016-01-13 | 江苏省南扬机械制造有限公司 | Scratch-proof forming device for aluminum pipe production line |
-
2009
- 2009-11-06 CN CN200910044722A patent/CN101704021A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972777A (en) * | 2010-10-22 | 2011-02-16 | 李志雄 | Titanium welded pipe and stainless steel welded pipe forming roller and surface treatment method thereof |
| CN105234215A (en) * | 2015-11-03 | 2016-01-13 | 江苏省南扬机械制造有限公司 | Scratch-proof forming device for aluminum pipe production line |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100512 |