CN101871039A - Surface recombination shot-blasting processing method of stainless steel material - Google Patents
Surface recombination shot-blasting processing method of stainless steel material Download PDFInfo
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- CN101871039A CN101871039A CN201010151444A CN201010151444A CN101871039A CN 101871039 A CN101871039 A CN 101871039A CN 201010151444 A CN201010151444 A CN 201010151444A CN 201010151444 A CN201010151444 A CN 201010151444A CN 101871039 A CN101871039 A CN 101871039A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
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Abstract
The invention relates to a surface recombination shot-blasting processing method of a stainless steel material, comprising the following steps of: carrying out shot-blasting processing on the surface of a target material by using an S30432 stainless steel material as the target material and adopting pneumatic type shot-blasting equipment under the conditions of air pressure between 0.5 MPa and 0.75 MPa and shot flow higher than 7 kg/minute: firstly carrying out the shot-blasting processing on the surface of the S30432 stainless steel material by using metal shots with diameters of 0.8 mm and shot-blasting intensity of 0.2 A mm, and then carrying out the shot-blasting processing on the surface of the S30432 stainless steel material by using non-metal shots with the diameters of 0.15 mm and the shot-blasting intensity of 0.1-0.35 A mm. The invention has the positive advantages of not only having the benefits of the shot-blasting processing, but also preventing the S30432 stainless steel material from being changed in the property of the material surface after the composite shot-blasting processing of the surface by remaining chippings of the metal blasting shots on the surface of a workpiece. The invention enhances the high temperature and pressure water vapour oxidation resistant property.
Description
[technical field]
The present invention relates to the technical field of novel material, novel process, relate to the process for treating surface of stainless material, concrete is a kind of method of the surface of homemade S30432 stainless material being handled with composite shot blasting.
[background technology]
The development of high-parameters, large-capacity ultra-supercritical unit (higher vapor temperature and pressure) depends on the raising of making the boiler material performance, has only the development that intensity is higher, the persistence better material could be supported the ultra supercritical unit.
The Super304H steel is as the super used steel pipe of (surpassing) critical boiler high temperature parts, only has SUMITOMO CHEMICAL metal Co., Ltd. and European DMV company to produce at present.Along with the increase of super (surpassing) critical unit demand both at home and abroad, this steel pipe resource day is becoming tight.With regard to China,, limited super (surpassing) critical Boiler Manufacture development because of long-term dependence on import material.For this reason, domestic part stainless steel tube manufacturing concern begins to carry out the development of Super304H stainless steel tube, and with the product called after S30432 steel of production domesticization.At present, to the performance perameter of S30432 steel each side also in test and research, for applying of S32032 steel provides theoretical foundation and technical data deposit.
The high-parameters station boiler because of pipe heating surface failure reasons in, outer wall corrosion and inwall steam oxidation are important factors, also are the major causes that causes the quick-fried leakage accident of boiler.Adopt effective technology that tube surface is handled, improve the corrosion resistance of material, can reduce corrosive effectively and form speed, reduce owing to rusty scale thickens the wall temperature rising amplitude that causes, the high heat-conduction coefficient of long-term maintenance guarantees tubing heat resistance energy, reduces the generation of quick-fried leakage accident, prolong the work-ing life of pipe, improve the safety operation level of boiler.Therefore, tube surface being handled is the good method of improving the anti-oxidant and corrosion resistance nature of alloy surface.
With regard to the S30432 stainless steel, shot peening is carried out on its surface, its surface layer grain is disintegrated, tissue obtains refinement, and can promote chromium (Cr) element in the stainless steel to external diffusion, forms chromium sesquioxide (Cr on the surface
2O
3) thin layer, the compactness of this layer chromium sesquioxide oxide film is than original Z 250 (Fe
3O
4) good a lot, therefore, can improve the ability of S30432 stainless-steel pipe high temperature resistance high-pressure steam oxidation.But as the shot-peening material, the chip of the metal shot-peening of its generation remains in workpiece surface to existing shot peening easily with single metallic substance, and this can reduce the stainless corrosion resistance of S30432.
[summary of the invention]
The objective of the invention is to overcome the deficiencies in the prior art, propose a kind of method that the S30432 surface of stainless steel is carried out the composite shot blasting processing, can reach the character that had both changed material surface, improve the performance of material surface high temperature resistance high-pressure steam oxidation again.
For achieving the above object, the technical scheme taked of the present invention is:
Surface recombination shot-blasting processing method of stainless steel material, with the S30432 stainless material is target, adopt the pneumatic type blaster, in air pressure is under 0.5～0.75MPa, the condition of bullet flow greater than 7Kg/min, shot peening is carried out on surface to target, it is characterized in that adopting earlier diameter is that 0.8mm, shot peening strength are that the metal bullet of 0.2Amm carries out shot peening to the surface of S30432 stainless material, fraction of coverage reaches more than 120%; And then be that 0.15mm, shot peening strength are that the nonmetal bullet of 0.1～0.35Amm carries out shot peening to the surface of S30432 stainless material with the diameter, fraction of coverage reaches more than 120%.
Described metal bullet is stainless shot.
Described nonmetal bullet is the glass ball.
The positively effect of surface recombination shot-blasting processing method of stainless steel material of the present invention is:
The benefit of existing shot peening, avoided the chip of metal shot-peening to remain in workpiece surface easily again, make the S30432 stainless material after the composite shot blasting on surface is handled, both change the character of material surface, improved the performance of material surface high temperature resistance high-pressure steam oxidation again.In operation, do not increase any complicated step yet, implement easily, promote easily.
[embodiment]
Three specific embodiments of surface recombination shot-blasting processing method of stainless steel material of the present invention below are provided.
Embodiment 1
Adopt the pneumatic type blaster, in air pressure is under 0.5～0.75MPa, the condition of bullet flow greater than 7Kg/min, the employing diameter is that 0.8mm, shot peening strength are that the metal bullet of 0.2Amm carries out shot peening to the S30432 surface of stainless steel, and fraction of coverage reaches more than 120%; Adopting diameter again is that 0.15mm, shot peening strength are that the nonmetal bullet of 0.1Amm carries out shot peening to the surface of S30432 stainless material, and fraction of coverage reaches more than 120%.
Embodiment 2
Adopt the pneumatic type blaster, in air pressure is under 0.5～0.75MPa, the condition of bullet flow greater than 7Kg/min, the employing diameter is that 0.8mm, shot peening strength are that the metal bullet of 0.2Amm carries out shot peening to the S30432 surface of stainless steel, and fraction of coverage reaches more than 120%; Adopting diameter again is that 0.15mm, shot peening strength are that the nonmetal bullet of 0.2Amm carries out shot peening to the surface of S30432 stainless material, and fraction of coverage reaches more than 120%.
Embodiment 3
Adopt the pneumatic type blaster, in air pressure is under 0.5～0.75MPa, the condition of bullet flow greater than 7Kg/min, the employing diameter is that 0.8mm, shot peening strength are that the metal bullet of 0.2Amm carries out shot peening to the S30432 surface of stainless steel, and fraction of coverage reaches more than 120%; Adopting diameter again is that 0.15mm, shot peening strength are that the nonmetal bullet of 0.35Amm carries out shot peening to the surface of S30432 stainless material, and fraction of coverage reaches more than 120%.
Only be preferred embodiment of the present invention in sum, it is not to be used for limiting practical range of the present invention, and all variation or modification according to the equivalence that the present invention did all should be considered as technology category of the present invention.
Claims (3)
1. surface recombination shot-blasting processing method of stainless steel material, with the S30432 stainless material is target, adopt the pneumatic type blaster, in air pressure is under 0.5～0.75MPa, the condition of bullet flow greater than 7Kg/min, shot peening is carried out on surface to target, it is characterized in that adopting earlier diameter is that 0.8mm, shot peening strength are that the metal bullet of 0.2Amm carries out shot peening to the surface of S30432 stainless material, fraction of coverage reaches more than 120%; And then be that 0.15mm, shot peening strength are that the nonmetal bullet of 0.1～0.35Amm carries out shot peening to the surface of S30432 stainless material with the diameter, fraction of coverage reaches more than 120%.
2. surface recombination shot-blasting processing method of stainless steel material according to claim 1 is characterized in that, described metal bullet is stainless shot.
3. surface recombination shot-blasting processing method of stainless steel material according to claim 1 is characterized in that, described nonmetal bullet is included as the glass ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010151444A CN101871039A (en) | 2010-04-20 | 2010-04-20 | Surface recombination shot-blasting processing method of stainless steel material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010151444A CN101871039A (en) | 2010-04-20 | 2010-04-20 | Surface recombination shot-blasting processing method of stainless steel material |
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| CN101871039A true CN101871039A (en) | 2010-10-27 |
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| CN201010151444A Pending CN101871039A (en) | 2010-04-20 | 2010-04-20 | Surface recombination shot-blasting processing method of stainless steel material |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977985A (en) * | 2014-05-05 | 2014-08-13 | 大连理工大学 | Compound cleaning method for reproducing components |
| CN104152652A (en) * | 2014-07-01 | 2014-11-19 | 江苏曙光华阳钻具有限公司 | Process for strengthening surfaces of inner and outer walls of non-magnetic drill collar and internal and external threads of joints at two ends |
| CN106676561A (en) * | 2016-12-22 | 2017-05-17 | 当涂县宏宇金属炉料有限责任公司 | Surface treatment method of metal part |
| CN107523823A (en) * | 2016-06-22 | 2017-12-29 | 株洲中车时代电气股份有限公司 | A kind of passivating method of parts of stainless steel |
| CN107641697A (en) * | 2016-07-20 | 2018-01-30 | 株式会社日立制作所 | Bead for the tolerance that cavitates |
| CN107866743A (en) * | 2017-11-29 | 2018-04-03 | 无锡透平叶片有限公司 | A kind of titanium alloy blade and its processing method |
| CN108193153A (en) * | 2018-01-30 | 2018-06-22 | 上海核工程研究设计院有限公司 | A kind of zircaloy composite shot blasting surface modifying method |
| CN112011674A (en) * | 2020-08-28 | 2020-12-01 | 东风商用车有限公司 | Composite shot blasting strengthening method for steel plate spring |
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| US4217769A (en) * | 1978-10-10 | 1980-08-19 | Consolidated Papers, Inc. | Method of forming a coating application roll |
| US5057108A (en) * | 1990-01-12 | 1991-10-15 | Zimmer, Inc. | Method of surface finishing orthopedic implant devices |
| CN1621539A (en) * | 2004-12-11 | 2005-06-01 | 燕山大学 | Technology for prevention of GH169 alloy notch brittle |
| CN101353719A (en) * | 2007-06-15 | 2009-01-28 | 阿尔斯托姆科技有限公司 | Method for the surface treatment of ferritic/martensitic 9-12% cr steel |
| CN101530985A (en) * | 2009-04-09 | 2009-09-16 | 上海交通大学 | Method for processing composite shot blasting considering both surface peening and polishing |
-
2010
- 2010-04-20 CN CN201010151444A patent/CN101871039A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4217769A (en) * | 1978-10-10 | 1980-08-19 | Consolidated Papers, Inc. | Method of forming a coating application roll |
| US5057108A (en) * | 1990-01-12 | 1991-10-15 | Zimmer, Inc. | Method of surface finishing orthopedic implant devices |
| CN1621539A (en) * | 2004-12-11 | 2005-06-01 | 燕山大学 | Technology for prevention of GH169 alloy notch brittle |
| CN101353719A (en) * | 2007-06-15 | 2009-01-28 | 阿尔斯托姆科技有限公司 | Method for the surface treatment of ferritic/martensitic 9-12% cr steel |
| CN101530985A (en) * | 2009-04-09 | 2009-09-16 | 上海交通大学 | Method for processing composite shot blasting considering both surface peening and polishing |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977985A (en) * | 2014-05-05 | 2014-08-13 | 大连理工大学 | Compound cleaning method for reproducing components |
| CN104152652A (en) * | 2014-07-01 | 2014-11-19 | 江苏曙光华阳钻具有限公司 | Process for strengthening surfaces of inner and outer walls of non-magnetic drill collar and internal and external threads of joints at two ends |
| CN107523823A (en) * | 2016-06-22 | 2017-12-29 | 株洲中车时代电气股份有限公司 | A kind of passivating method of parts of stainless steel |
| CN107641697A (en) * | 2016-07-20 | 2018-01-30 | 株式会社日立制作所 | Bead for the tolerance that cavitates |
| CN106676561A (en) * | 2016-12-22 | 2017-05-17 | 当涂县宏宇金属炉料有限责任公司 | Surface treatment method of metal part |
| CN107866743A (en) * | 2017-11-29 | 2018-04-03 | 无锡透平叶片有限公司 | A kind of titanium alloy blade and its processing method |
| CN108193153A (en) * | 2018-01-30 | 2018-06-22 | 上海核工程研究设计院有限公司 | A kind of zircaloy composite shot blasting surface modifying method |
| CN112011674A (en) * | 2020-08-28 | 2020-12-01 | 东风商用车有限公司 | Composite shot blasting strengthening method for steel plate spring |
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Application publication date: 20101027 |