CN100503876C - Method for using braze welding material as corrosion-resistant coat - Google Patents
Method for using braze welding material as corrosion-resistant coat Download PDFInfo
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- CN100503876C CN100503876C CNB2007101652939A CN200710165293A CN100503876C CN 100503876 C CN100503876 C CN 100503876C CN B2007101652939 A CNB2007101652939 A CN B2007101652939A CN 200710165293 A CN200710165293 A CN 200710165293A CN 100503876 C CN100503876 C CN 100503876C
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Abstract
The present invention belongs to the field of anticorrosion treatment technology, and is especially method of using brazing material to form anticorrosive coating. The present invention features that brazing material Ni82CrBSi is first hot sprayed to the surface of metal member and then molten to form one anticorrosive coating. The method of the present invention can raise the anticorrosion performance of member at high temperature greatly, and is simple. The coating formed through melting the sprayed material has low porosity, high bonding strength and high anticorrosion performance.
Description
Technical field
The invention belongs to preservative treatment technology, relate to a kind of method that braze is used as corrosion-resistant finishes.
Background technology
Perishable steel part anticorrosion, a variety of methods are arranged, as: spray paint, plating, thermospray or the like, the heat resistance of these coating is only below 700 ℃, for the occasion of the anti-higher temperature of needs, when for example some part need carry out welding sequence subsequently, its temperature had reached about 1000 ℃, the coating of above-mentioned coating can't play protection effect with destroyed.At the part more than 700 ℃, for example the high-temperature component of engine does not still have the protective system that meets the demands at present for the environment for use temperature.
Summary of the invention
The objective of the invention is: propose a kind of method that braze is used as corrosion-resistant finishes, to satisfy the protection against corrosion needs of metallic surface in high-temperature corrosion environment.
Technical scheme of the present invention is: a kind of method that braze is used as corrosion-resistant finishes, it is characterized in that, use heat spraying method after metallic surface spraying Ni82CrBSi braze, to carry out melting treatment, the mass percent composition of this braze is: Cr content 6～8%, B content 2.75～3.5%, Si content 4～5%, surplus are Ni; The granularity of braze is 25～125 μ m; The step of spraying is as follows:
1, oil removing; Use acetone or spirit solvent that the wiping oil removal treatment is carried out on the metal parts surface that is sprayed;
2, blast; Using 40～80 purpose aluminum oxide sand that blast is carried out on the metal parts surface that is sprayed handles;
3, clamping workpiece; The metal parts clamping that will be sprayed makes the metal parts surface that is sprayed towards spray gun to the anchor clamps of plasma spraying equipment;
4, set spraying parameter;
4.1, nozzle diameter: φ 6～φ 9mm;
4.2, main gas parameter; Main gas is argon gas, main atmospheric pressure 3～5Bar, 30～50 liters/minute of main air stream amounts;
4.3, inferior gas parameter; Inferior gas is hydrogen, inferior atmospheric pressure 3～5Bar, 3～5 liters/minute of inferior airsheds;
4.4,3～5 liters/minute of carrier gas fluxes;
4.5,500～700 amperes of working currents;
4.6,50～90 volts of operating voltage;
4.7, powder feeding rate 30～50 gram/minute;
4.8, spray distance 120～150mm;
5, spraying; To the metal parts surface spraying braze that quilt sprays, spray time 10～20 minutes;
6, braze fusion; The metal parts that will be sprayed is put into process furnace, is warmed up to 950 ℃～1050 ℃, is incubated 1～2 hour, and the air cooling of coming out of the stove is to room temperature.
Advantage of the present invention is: improved part erosion resistance at high temperature greatly.Operation is easy, and technological operation is strong.After the coating fusion, porosity descends, and bonding strength and corrosion resistance nature improve greatly, have satisfied the protection against corrosion needs of metallic surface in high-temperature corrosion environment.
Embodiment
Below the present invention is described in further details.A kind of method that braze is used as corrosion-resistant finishes, it is characterized in that, use heat spraying method after metallic surface spraying Ni82CrBSi braze, to carry out melting treatment, the mass percent composition of this braze is: Cr content 6～8%, B content 2.75～3.5%, Si content 4～5%, surplus are Ni; The granularity of braze is 25～125
μ m; The step of spraying is as follows:
1, oil removing; Use acetone or spirit solvent that the wiping oil removal treatment is carried out on the metal parts surface that is sprayed;
2, blast; Using 40～80 purpose aluminum oxide sand that blast is carried out on the metal parts surface that is sprayed handles;
3, clamping workpiece; The metal parts clamping that will be sprayed makes the metal parts surface that is sprayed towards spray gun to the anchor clamps of plasma spraying equipment;
4, set spraying parameter;
4.1, nozzle diameter: φ 6～φ 9mm;
4.2, main gas parameter; Main gas is argon gas, main atmospheric pressure 3～5Bar, 30～50 liters/minute of main air stream amounts;
4.3, inferior gas parameter; Inferior gas is hydrogen, inferior atmospheric pressure 3～5Bar, 3～5 liters/minute of inferior airsheds;
4.4,3～5 liters/minute of carrier gas fluxes;
4.5,500～700 amperes of working currents;
4.6,50～90 volts of operating voltage;
4.7, powder feeding rate 30～50 gram/minute;
4.8, spray distance 120～150mm;
5, spraying; To the metal parts surface spraying braze that quilt sprays, spray time 10～20 minutes;
6, braze fusion; The metal parts that will be sprayed is put into process furnace, is warmed up to 950 ℃～1050 ℃, is incubated 1～2 hour, and the air cooling of coming out of the stove is to room temperature.
Embodiment 1.Adopt the plasma spraying equipment of UNICOAT company.
Spraying parameter is: nozzle diameter: φ 6mm; The gas parameter; Main gas is argon gas, main atmospheric pressure 3Bar, 30 liters/minute of main air stream amounts; Inferior gas parameter; Inferior gas is hydrogen, inferior atmospheric pressure 3Bar, 3 liters/minute of inferior airsheds; 3 liters/minute of carrier gas fluxes; 700 amperes of working currents; 90 volts of operating voltage; Powder feeding rate 30 gram/minute; Spray distance 120mm; 10 minutes; The metal parts that will be sprayed after the spraying is put into process furnace, is warmed up to 950 ℃, is incubated 2 hours, and the air cooling of coming out of the stove is to room temperature.
Embodiment 2.Adopt the plasma spraying equipment of UNICOAT company.
Spraying parameter is: nozzle diameter: φ 7mm; The gas parameter; Main gas is argon gas, main atmospheric pressure 4Bar, 40 liters/minute of main air stream amounts; Inferior gas parameter; Inferior gas is hydrogen, inferior atmospheric pressure 4Bar, 4 liters/minute of inferior airsheds; 4 liters/minute of carrier gas fluxes; 600 amperes of working currents; 80 volts of operating voltage; Powder feeding rate 40 gram/minute; Spray distance 130mm; 15 minutes; The metal parts that will be sprayed after the spraying is put into process furnace, is warmed up to 1000 ℃, is incubated 1.5 hours, and the air cooling of coming out of the stove is to room temperature.
Embodiment 3.Adopt the plasma spraying equipment of UNICOAT company.
Spraying parameter is: nozzle diameter: φ 9mm; The gas parameter; Main gas is argon gas, main atmospheric pressure 5Bar, 50 liters/minute of main air stream amounts; Inferior gas parameter; Inferior gas is hydrogen, inferior atmospheric pressure 5Bar, 5 liters/minute of inferior airsheds; 5 liters/minute of carrier gas fluxes; 500 amperes of working currents; 60 volts of operating voltage; Powder feeding rate 50 gram/minute; Spray distance 140mm; 20 minutes; The metal parts that will be sprayed after the spraying is put into process furnace, is warmed up to 1050 ℃, is incubated 1 hour, and the air cooling of coming out of the stove is to room temperature.
Claims (1)
1, a kind of method that braze is used as corrosion-resistant finishes, it is characterized in that, use heat spraying method after metallic surface spraying Ni82CrBSi braze, to carry out melting treatment, the mass percent composition of this braze is: Cr content 6～8%, B content 2.75～3.5%, Si content 4～5%, surplus are Ni; The granularity of braze is 25～125 μ m; The step of spraying is as follows:
1.1, oil removing; Use acetone or spirit solvent that the wiping oil removal treatment is carried out on the metal parts surface that is sprayed;
1.2, blast; Using 40～80 purpose aluminum oxide sand that blast is carried out on the metal parts surface that is sprayed handles;
1.3, clamping workpiece; The metal parts clamping that will be sprayed makes the metal parts surface that is sprayed towards spray gun to the anchor clamps of plasma spraying equipment;
1.4, set spraying parameter;
1.4.1, nozzle diameter: φ 6～φ 9mm;
1.4.2, main gas parameter; Main gas is argon gas, main atmospheric pressure 3～5Bar, 30～50 liters/minute of main air stream amounts;
1.4.3, inferior gas parameter; Inferior gas is hydrogen, inferior atmospheric pressure 3～5Bar, 3～5 liters/minute of inferior airsheds;
1.4.4,3～5 liters/minute of carrier gas fluxes;
1.4.5,500～700 amperes of working currents;
1.4.6,50～90 volts of operating voltage;
1.4.7, powder feeding rate 30～50 gram/minute;
1.4.8, spray distance 120～150mm;
1.5, the spraying; To the metal parts surface spraying braze that quilt sprays, spray time 10～20 minutes;
1.6, the braze fusion; The metal parts that will be sprayed is put into process furnace, is warmed up to 950 ℃～1050 ℃, is incubated 1～2 hour, and the air cooling of coming out of the stove is to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101652939A CN100503876C (en) | 2007-11-05 | 2007-11-05 | Method for using braze welding material as corrosion-resistant coat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101652939A CN100503876C (en) | 2007-11-05 | 2007-11-05 | Method for using braze welding material as corrosion-resistant coat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101148748A CN101148748A (en) | 2008-03-26 |
| CN100503876C true CN100503876C (en) | 2009-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101652939A Active CN100503876C (en) | 2007-11-05 | 2007-11-05 | Method for using braze welding material as corrosion-resistant coat |
Country Status (1)
| Country | Link |
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| CN (1) | CN100503876C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102021556B (en) * | 2009-09-16 | 2013-06-12 | 中国科学院金属研究所 | Insulation coating for traction motor bearing and preparation method thereof |
| CN102033504B (en) * | 2010-12-27 | 2012-10-24 | 重庆工商大学 | Intelligent spray control method and device for coating porosity of waste oil treatment equipment |
| CN102127729B (en) * | 2011-02-18 | 2012-09-05 | 湖北工业大学 | Soldering strengthening method for thermal sprayed coating on surface of metal material |
| CN104264094A (en) * | 2014-09-12 | 2015-01-07 | 芜湖鼎瀚再制造技术有限公司 | Remanufacturing technique of stamping machine stamping die |
| CN105170973B (en) * | 2015-10-31 | 2017-12-05 | 湘潭大学 | A kind of wear resistant corrosion resistant coating material and the method applied to steel pipe |
| DE102017121975A1 (en) * | 2017-09-22 | 2019-03-28 | GEDIA Gebrüder Dingerkus GmbH | Process for the production of components from sheet metal |
-
2007
- 2007-11-05 CN CNB2007101652939A patent/CN100503876C/en active Active
Non-Patent Citations (2)
| Title |
|---|
| 等离子喷涂NiCrBSi合金涂层的高温性能. 肖明清，吴瑞祥，李长青.金属材料与冶金工程，第35卷第3期. 2007 |
| 等离子喷涂NiCrBSi合金涂层的高温性能. 肖明清，吴瑞祥，李长青.金属材料与冶金工程，第35卷第3期. 2007 * |
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|---|---|
| CN101148748A (en) | 2008-03-26 |
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Owner name: XI'AN AERO-ENGINE CORPORATION LTD. Free format text: FORMER OWNER: XI'AN AEROPLANE ENGINE (GROUP) CO., LTD. Effective date: 20090522 |
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Effective date of registration: 20090522 Address after: Xu Jia Bay, Xi'an, Shaanxi, Beijiao Patentee after: XI'AN AVIATION POWER Co.,Ltd. Address before: Xu Jia Bay, Xi'an, Shaanxi, Beijiao Patentee before: Xi'an Aero-Engine(Group) Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
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Address after: 710021 Xu Jia Bay, Xi'an, Shaanxi, Beijiao Patentee after: AECC AVIATION POWER CO,LTD. Address before: 710021 Xu Jia Bay, Xi'an, Shaanxi, Beijiao Patentee before: AVIC AVIATION ENGINE Corp.,PLC Address after: 710021 Xu Jia Bay, Xi'an, Shaanxi, Beijiao Patentee after: AVIC AVIATION ENGINE Corp.,PLC Address before: 710021 Xu Jia Bay, Xi'an, Shaanxi, Beijiao Patentee before: XI'AN AVIATION POWER Co.,Ltd. |