CN102133699A - Manufacturing process for corrosion-resistant and wear-resistant steel pipe - Google Patents
Manufacturing process for corrosion-resistant and wear-resistant steel pipe Download PDFInfo
- Publication number
- CN102133699A CN102133699A CN201110050859XA CN201110050859A CN102133699A CN 102133699 A CN102133699 A CN 102133699A CN 201110050859X A CN201110050859X A CN 201110050859XA CN 201110050859 A CN201110050859 A CN 201110050859A CN 102133699 A CN102133699 A CN 102133699A
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- China
- Prior art keywords
- welding
- wear
- steel pipe
- anticorrosive anti
- steel tube
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
Abstract
The invention discloses a manufacturing process for a corrosion-resistant and wear-resistant steel pipe. The process comprises the following steps of: sectioning a steel pipe into two parts; performing spray coating; and welding. Thus, the aim of spray-coating an alloy protection layer on the inner surface of a long steel pipe, small steel pipe or bent steel pipe is fulfilled, the corrosion resistance and the wear resistance of the steel pipe are effectively improved, operating requirements under different working conditions are met, and manufacturing difficulty and production cost of the process are also reduced. The manufacturing process for the corrosion-resistant and wear-resistant steel pipe is simple in design, is easy to realize and has an obvious beneficial effect.
Description
Technical field
The present invention relates to a kind of steel tube manufacture technique, particularly relate to a kind of anticorrosive anti-wear steel tube manufacture technique.
Background technology
When some special media of transmission, often need steel pipe internal-surface to have anticorrosive anti-wear performance preferably, traditional processing method mainly contains: (1) casting double-layer pipe, internal layer adopts anticorrosive anti-wear, but technology is comparatively complicated; (2) on the steel pipe inwall, directly spray the anticorrosive anti-wear material, but for realizing spraying than long or less or curved steel pipe.
Summary of the invention
Technical problem to be solved by this invention provide a kind of can be at the anticorrosive anti-wear steel tube manufacture technique of long steel pipe or little steel pipe or curved steel pipe internal-surface spraying alloy protecting layer.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: a kind of anticorrosive anti-wear steel tube manufacture technique, it is characterized in that, and comprise following operation:
A, bevelling: offer the twice bevel for welding in outer surface of steel tube upper edge axis symmetry with beveling machine;
B, cut open two lobes: steel pipe is cutd open two lobes into symmetry along the center line of twice bevel for welding;
C, sandblast: adopt sand-blasting machine on the inner surface of two lobe steel pipes, to do blasting treatment;
D, spraying: cuing open is even spraying alloy protecting layer on the inner surface of steel pipe of two lobes;
E, clamping: adopt special tooling that two lobe steel pipes are carried out the clamping location, have the gap between two lobes, identical before guaranteeing the monnolithic case size and cuing open;
F, welding: adopt the welding manner of single face welding and double face shaping that two lobe steel pipes are welded as integral body;
G, destressing: adopt destressing equipment to go welding stress to handle to welded still pipe.
As preferably, described tube material is stainless steel or carbon steel or cast steel.
As preferably, described welding cut is V-type or U type.
As preferably, the described two lobe operations of cuing open adopt laser cutting or wire cutting method.
As preferably, described spraying process adopts supersonic spray coating or electric arc spraying or plasma spraying or laser cladding method.
As preferably, the material of described alloy protecting layer is Ni-based or cobalt-based or ferrous alloy material.
As preferably, the thickness of described alloy protecting layer is more than or equal to 1mm.
As preferably, adopt the welding material identical to weld in the described welding sequence earlier with spraying alloy protecting layer, adopting the welding material identical to weld with tube material.
As preferably, the weld seam inner face flushed with spraying alloy protecting laminar surface after described welding sequence was finished.
As preferably, brush special-purpose hole sealing agent at the weld seam inner face again after the described destressing operation, described special-purpose hole sealing agent is resinae hole sealing agent or metal species hole sealing agent.
A kind of anticorrosive anti-wear steel tube manufacture technique of the present invention; by earlier steel pipe being cutd open the method that is two lobes, sprays then, welds again; realized the purpose of spraying alloy protecting layer on long steel pipe or little steel pipe or curved steel pipe internal-surface; both effectively improved steel pipe the anticorrosive anti-wear performance, satisfied the instructions for use of different operating modes, reduced its manufacture difficulty and production cost again.A kind of anticorrosive anti-wear steel tube manufacture technique of the present invention, technological design is simple, be easy to realize, beneficial effect is obvious.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 cuts open the preceding steel-tube construction schematic diagram of two lobe operations in a kind of anticorrosive anti-wear steel tube manufacture technique of the present invention.
Fig. 2 is the steel-tube construction schematic diagram behind the welding sequence in a kind of anticorrosive anti-wear steel tube manufacture technique of the present invention.
Wherein, Reference numeral: 1 is steel pipe, and 2 is bevel for welding, and 3 is the alloy protecting layer, and 4 is weld seam.
The specific embodiment
Disclosed all features in this specification, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
As depicted in figs. 1 and 2, a kind of anticorrosive anti-wear steel tube manufacture technique of the present invention, the anticorrosive anti-wear steel tube manufacture technique comprises following operation: A, bevelling: offer twice bevel for welding 2 with beveling machine in steel pipe 1 outer surface upper edge axis symmetry; B, cut open two lobes: steel pipe 1 is cutd open two lobes into symmetry along the center line of twice bevel for welding 2; C, sandblast: adopt sand-blasting machine on the inner surface of two lobe steel pipes, to do blasting treatment; D, spraying: cuing open is even spraying alloy protecting layer on the inner surface of steel pipe of two lobes; E, clamping: adopt special tooling that two lobe steel pipes are carried out the clamping location, have the gap between two lobes, identical before guaranteeing the monnolithic case size and cuing open; F, welding: adopt the welding manner of single face welding and double face shaping that two lobe steel pipes are welded as integral body; G, destressing: adopt destressing equipment to go welding stress to handle to welded still pipe.
As depicted in figs. 1 and 2, a kind of anticorrosive anti-wear steel tube manufacture technique of the present invention, tube material can be stainless steel or carbon steel or cast steel.In order to guarantee single face welding and double face shaping welding procedure effect, the welding cut is designed to V-type or U type.Cuing open two lobe operations can adopt laser cutting or wire cutting method to finish.Spraying process can adopt supersonic spray coating or electric arc spraying or plasma spraying or laser cladding method.In order to improve steel pipe anticorrosive anti-wear performance, the material of alloy protecting layer is Ni-based or cobalt-based or ferrous alloy material preferably, and the thickness of alloy protecting layer is designed to 1.5 mm here more preferably greater than equaling 1mm.Adopt the welding material identical to weld in the welding sequence earlier,, so not only can guarantee weldquality but also can save manufacturing cost adopting the welding material identical to weld with tube material with spraying alloy protecting layer.Weld seam 4 inner faces flushed with spraying alloy protecting laminar surface after welding sequence was finished, and can guarantee that like this weld seam has same good anticorrosive anti-wear performance.Welding needs to adopt automatic welder(welding machine), and the good relevant parameter of calculating and setting.In order further to improve the face of weld quality, can after the destressing operation, brush special-purpose hole sealing agent at weld seam 4 inner faces again, described special-purpose hole sealing agent is resinae hole sealing agent or metal species hole sealing agent.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an anticorrosive anti-wear steel tube manufacture technique is characterized in that, comprises following operation:
A, bevelling: offer twice bevel for welding (2) in steel pipe (1) outer surface upper edge axis symmetry with beveling machine;
B, cut open two lobes: steel pipe (1) is cutd open two lobes into symmetry along the center line of twice bevel for welding (2);
C, sandblast: adopt sand-blasting machine on the inner surface of two lobe steel pipes, to do blasting treatment;
D, spraying: cuing open is even spraying alloy protecting layer (3) on the inner surface of steel pipe of two lobes;
E, clamping: adopt special tooling that two lobe steel pipes are carried out the clamping location, have the gap between two lobes, identical before guaranteeing the monnolithic case size and cuing open;
F, welding: adopt the welding manner of single face welding and double face shaping that two lobe steel pipes are welded as integral body;
G, destressing: adopt destressing equipment to go welding stress to handle to welded still pipe.
2. a kind of anticorrosive anti-wear steel tube manufacture technique according to claim 1 is characterized in that: described tube material is stainless steel or carbon steel or cast steel.
3. a kind of anticorrosive anti-wear steel tube manufacture technique according to claim 1 is characterized in that: described welding cut is V-type or U type.
4. a kind of anticorrosive anti-wear steel tube manufacture technique according to claim 1 is characterized in that: the described two lobe operations of cuing open adopt laser cutting or wire cutting method.
5. a kind of anticorrosive anti-wear steel tube manufacture technique according to claim 1 is characterized in that: described spraying process adopts supersonic spray coating or electric arc spraying or plasma spraying or laser cladding method.
6. a kind of anticorrosive anti-wear steel tube manufacture technique according to claim 1 is characterized in that: the material of described alloy protecting layer is Ni-based or cobalt-based or ferrous alloy material.
7. according to claim 1 or 6 described a kind of anticorrosive anti-wear steel tube manufacture techniques, it is characterized in that: the thickness of described alloy protecting layer is more than or equal to 1mm.
8. a kind of anticorrosive anti-wear steel tube manufacture technique according to claim 1 is characterized in that: adopt the welding material identical with spraying alloy protecting layer to weld in the described welding sequence earlier, adopting the welding material identical with tube material to weld.
9. according to claim 1 or 8 described a kind of anticorrosive anti-wear steel tube manufacture techniques, it is characterized in that: weld seam after described welding sequence is finished (4) inner face flushes with spraying alloy protecting laminar surface.
10. a kind of anticorrosive anti-wear steel tube manufacture technique according to claim 1 is characterized in that: brush special-purpose hole sealing agent at weld seam (4) inner face again after the described destressing operation, described special-purpose hole sealing agent is resinae hole sealing agent or metal species hole sealing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110050859XA CN102133699A (en) | 2011-03-03 | 2011-03-03 | Manufacturing process for corrosion-resistant and wear-resistant steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110050859XA CN102133699A (en) | 2011-03-03 | 2011-03-03 | Manufacturing process for corrosion-resistant and wear-resistant steel pipe |
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| CN102133699A true CN102133699A (en) | 2011-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110050859XA Pending CN102133699A (en) | 2011-03-03 | 2011-03-03 | Manufacturing process for corrosion-resistant and wear-resistant steel pipe |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563222A (en) * | 2012-02-29 | 2012-07-11 | 中联重科股份有限公司 | Concrete delivery pipe and production method thereof |
| CN108118334A (en) * | 2017-12-22 | 2018-06-05 | 北京机科国创轻量化科学研究院有限公司 | A kind of method that superelevation rate laser melting coating prepares cobalt-based wear-and corrosion-resistant coating |
| CN111660064A (en) * | 2020-05-14 | 2020-09-15 | 杭州科晟能源技术有限公司 | Manufacturing method of corrosion-resistant pipe fitting of superheater and pipe bending device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1376175A (en) * | 1970-11-19 | 1974-12-04 | Bopp & Reuther Gmbh | Valve assemblies |
| CN2250190Y (en) * | 1994-11-11 | 1997-03-26 | 张庆新 | Double half pipe combined internal and external enamel long commissioning pipe |
| CN2921526Y (en) * | 2006-07-04 | 2007-07-11 | 范兴宽 | High impact resisting liner ceramic composite bend |
| CN101733638A (en) * | 2009-12-09 | 2010-06-16 | 江西泰豪特种电机有限公司 | Method for machining combined stainless steel shaft bushing |
-
2011
- 2011-03-03 CN CN201110050859XA patent/CN102133699A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1376175A (en) * | 1970-11-19 | 1974-12-04 | Bopp & Reuther Gmbh | Valve assemblies |
| CN2250190Y (en) * | 1994-11-11 | 1997-03-26 | 张庆新 | Double half pipe combined internal and external enamel long commissioning pipe |
| CN2921526Y (en) * | 2006-07-04 | 2007-07-11 | 范兴宽 | High impact resisting liner ceramic composite bend |
| CN101733638A (en) * | 2009-12-09 | 2010-06-16 | 江西泰豪特种电机有限公司 | Method for machining combined stainless steel shaft bushing |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563222A (en) * | 2012-02-29 | 2012-07-11 | 中联重科股份有限公司 | Concrete delivery pipe and production method thereof |
| CN102563222B (en) * | 2012-02-29 | 2014-07-23 | 中联重科股份有限公司 | Concrete delivery pipe and production method thereof |
| CN108118334A (en) * | 2017-12-22 | 2018-06-05 | 北京机科国创轻量化科学研究院有限公司 | A kind of method that superelevation rate laser melting coating prepares cobalt-based wear-and corrosion-resistant coating |
| CN111660064A (en) * | 2020-05-14 | 2020-09-15 | 杭州科晟能源技术有限公司 | Manufacturing method of corrosion-resistant pipe fitting of superheater and pipe bending device |
| CN111660064B (en) * | 2020-05-14 | 2021-06-08 | 杭州科晟能源技术有限公司 | Manufacturing method of corrosion-resistant pipe fitting of superheater and pipe bending device |
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Application publication date: 20110727 |