CN104294267A - Laser cladding powder applied to copper smelting distributor - Google Patents
Laser cladding powder applied to copper smelting distributor Download PDFInfo
- Publication number
- CN104294267A CN104294267A CN201410390202.1A CN201410390202A CN104294267A CN 104294267 A CN104294267 A CN 104294267A CN 201410390202 A CN201410390202 A CN 201410390202A CN 104294267 A CN104294267 A CN 104294267A
- Authority
- CN
- China
- Prior art keywords
- laser cladding
- powder
- distributor
- cladding powder
- copper smelting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0824—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with a specific atomising fluid
- B22F2009/0828—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with a specific atomising fluid with water
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
A disclosed laser cladding powder applied to copper smelting distributor is composed of the following chemical compositions in percent: 2.5% of C, 22% of Cr, 2% of Nb, 3.5% of Mo, 2.5% of B, 2% of Si, and the balance Fe. A preparation method of the powder comprises putting the raw materials with the above ratio in a vacuum environment, melting, performing water atomization processing, screening, and controlling the granularity to be 150-53 mu m. The laser cladding powder helps to improve the plasticity and the toughness of a cladding layer, also reduce the thermal expansion coefficient of the cladding layer, reduce residual stress and eliminate stress concentration, thereby eliminating cracks and shrinkage porosity.
Description
Technical field
The present invention relates to a kind of powdered alloy, especially for a kind of laser cladding powder of Copper making divider.
Background technology
Laser melting coating is exactly the one in process for treating surface.The principle of laser melting coating utilizes high energy laser beam to irradiate metal material surface exactly, substrate surface is melted rapidly, liquid metal forms a molten bath, drop into metal powder material simultaneously, in this molten bath, metallic substance originally fuses mutually with the metal-powder be added, and forms the liquid-metal layer that one deck is new.Treat laser beam through after, liquid-metal layer cools rapidly and forms the solid-state cladding layer of one deck in metallic surface thus.Along with improving constantly of laser power and stability, obtain rapid promotion and application.Laser melting and coating technique can be widely used in the every field such as aviation, mine, metallurgy, petrochemical industry.
The Core equipment of divider system Copper making industry, before many from external import, domestic not for the powdered alloy of Copper making divider laser melting coating, usual used powdered alloy is not suitable for Copper making divider, because of needs highly abrasion-resistant heat-and corrosion-resistant.Therefore, be necessary to develop a kind of metal alloy powders being specifically designed to Copper making divider laser melting coating.
Summary of the invention
The object of this invention is to provide a kind of powdered alloy being exclusively used in Copper making divider laser melting coating, this powdered alloy is exclusively used in the cladding process of Copper making divider, and the cladding layer of formation has high corrosion resistance.And microstructure of surface cladding layer is fine and close, the defect such as pore-free, crackle, shrinkage cavity, utilize this powdered alloy to carry out laser melting coating, technique is simple and convenient, without the need to thermal treatment before and after cladding.
For solving the problem, the technical solution used in the present invention is:
A kind of laser cladding powder for Copper making divider, be made up of the chemical composition of following percentage ratio: C:2.5%, Cr:22%, Nb:2%, Mo:3.5%, B:2.5%, Si:2%, surplus is Fe, and this powder preparation method is that after after the raw material of said ratio being put into vacuum melting, water atomization process is also sieved, Task-size Controlling is at 150-53 μm.
In powdered alloy of the present invention, the effect of each composition is as follows respectively:
Cr improves hardness and forms the oxide skin of protectiveness on surface and improve wear resistance and corrosion resistance, niobium had not only improved intensity by precipitation hardening but also by the further refinement of ferrite scape grain, molybdenum can reduce conversion rates effectively, improves hot strength and the creep resisting ability of superalloy; Improve corrosion resistance, thorough melting during cladding, together laser molten pool is formed with base material, in molten bath, be uniformly distributed after coagulation for other elements or compound and become cladding layer: this invention had both improved plasticity and the toughness of cladding layer, reduce again the thermal expansivity of cladding layer, reduce unrelieved stress, eliminate stress concentrated, thus eliminate crackle and shrinkage porosite.
Accompanying drawing explanation
Fig. 1 is that cladding powder of the present invention uses schematic diagram.
Number in the figure, 1. base material 2. cladding powder.
Embodiment
A kind of laser cladding powder for Copper making divider, be made up of the chemical composition of following percentage ratio: C:2.5%, Cr:22%, Nb:2%, Mo:3.5%, B:2.5%, Si:2%, surplus is Fe, and this powder preparation method is that after after the raw material of said ratio being put into vacuum melting, water atomization process is also sieved, Task-size Controlling is at 150-53 μm.
Claims (1)
1. the laser cladding powder for Copper making divider, it is characterized in that, be made up of the chemical composition of following percentage ratio: C:2.5%, Cr:22%, Nb:2%, Mo:3.5%, B:2.5%, Si:2%, surplus is Fe, this powder preparation method is that after after the raw material of said ratio being put into vacuum melting, water atomization process is also sieved, Task-size Controlling is at 150-53 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410390202.1A CN104294267A (en) | 2014-08-08 | 2014-08-08 | Laser cladding powder applied to copper smelting distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410390202.1A CN104294267A (en) | 2014-08-08 | 2014-08-08 | Laser cladding powder applied to copper smelting distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104294267A true CN104294267A (en) | 2015-01-21 |
Family
ID=52314210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410390202.1A Pending CN104294267A (en) | 2014-08-08 | 2014-08-08 | Laser cladding powder applied to copper smelting distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104294267A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100289194A1 (en) * | 2007-10-05 | 2010-11-18 | Sandvik Intellectual Property Ab | The use and method of producing a dispersion strengthened steel as material in a roller for a roller hearth furnace |
| CN102912189A (en) * | 2012-11-15 | 2013-02-06 | 江苏新亚特钢锻造有限公司 | Laser-cladding cobalt-based alloy powder and method for preparing same |
| CN102995013A (en) * | 2013-01-08 | 2013-03-27 | 株洲南方燃气轮机成套制造安装有限公司 | Composite coating and cladding technology |
| CN103695899A (en) * | 2013-12-20 | 2014-04-02 | 北矿新材科技有限公司 | Iron-based laser cladding powder for repairing wear-resistant and corrosion-resistant cladding layer and preparation method thereof |
| CN103752818A (en) * | 2014-01-21 | 2014-04-30 | 中国科学院半导体研究所 | Iron-based composite powder high in chromium content for laser cladding |
-
2014
- 2014-08-08 CN CN201410390202.1A patent/CN104294267A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100289194A1 (en) * | 2007-10-05 | 2010-11-18 | Sandvik Intellectual Property Ab | The use and method of producing a dispersion strengthened steel as material in a roller for a roller hearth furnace |
| CN102912189A (en) * | 2012-11-15 | 2013-02-06 | 江苏新亚特钢锻造有限公司 | Laser-cladding cobalt-based alloy powder and method for preparing same |
| CN102995013A (en) * | 2013-01-08 | 2013-03-27 | 株洲南方燃气轮机成套制造安装有限公司 | Composite coating and cladding technology |
| CN103695899A (en) * | 2013-12-20 | 2014-04-02 | 北矿新材科技有限公司 | Iron-based laser cladding powder for repairing wear-resistant and corrosion-resistant cladding layer and preparation method thereof |
| CN103752818A (en) * | 2014-01-21 | 2014-04-30 | 中国科学院半导体研究所 | Iron-based composite powder high in chromium content for laser cladding |
Non-Patent Citations (1)
| Title |
|---|
| 黄凤晓等: "Nb对送粉激光熔覆层组织和性能的影响", 《金属热处理》 * |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150121 |