CN104226982A - Alloy powder special for laser-induction combined cladding - Google Patents
Alloy powder special for laser-induction combined cladding Download PDFInfo
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- CN104226982A CN104226982A CN201410477449.7A CN201410477449A CN104226982A CN 104226982 A CN104226982 A CN 104226982A CN 201410477449 A CN201410477449 A CN 201410477449A CN 104226982 A CN104226982 A CN 104226982A
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Abstract
The invention discloses alloy powder special for laser-induction combined cladding. The special alloy powder comprises the following chemical components: 0.2 to 1 percent of C, 1.0 to 5.0 percent of W, 1.5 to 3.5 percent of Si, 0.25 to 2.5 percent of B, 10.0 to 30.0 percent of Cr, 3 to 6 percent of Mo, 10 to 20 percent of Ni, 3 to 8 percent of W, 0.2 to 1 percent of B, 10 to 30 percent of TiC and the balance of Fe. The special alloy powder is prepared by the following procedures of vacuum high-frequency induction melting, atomization, screening, activation, washing, drying, chemical nickel plating, filtering, washing and drying, and the formed special alloy powder has a particle size of 20 to 60 microns.
Description
Technical field
The invention belongs to material science and field of surface engineering technique, particularly a kind of laser-induction composite cladding special metals powder.
Background technology
Laser melting and coating technique is the Green Remanufacturing Technique of a kind of advanced person that nearly 40 years grow up, it can have fine microstructures in the substrate surface preparation of low cost and fine and close, bond strength is high, wear-resisting and anti-corrosion, conduct electricity and the coating of heat conductivility, reach the object of surface modification or reparation, to replace a large amount of expensive high performance structural member.At present, the alloy powder that cladding alloy coating is used is mostly alloy powder used for hot spraying or on the basis of these alloy powders, the alloying element adopting powder mixing machine method to mix different proportion forms alloy powder.Therefore, there is the problem of the following aspects:
(1) alloying element and particle size distribution uneven, the cladding alloy coating of formation easily produces microstructure segregation, pore, cause the obdurability of copper alloy coating, wear-resisting and anti-corrosion, conduct electricity and heat conductivility not high; (2) feature of laser melting coating Fast Heating and rapid solidification, make the thermograde of laser cladding process very big, and the alloy coat of preparation differs larger with the thermophysical property between base material, cause alloy coat very easily to ftracture, limit the development of laser melting and coating technique and the extensive use in industrial circle to a great extent.
In recent years, under high efficiency condition, the thermal stress in coating can be reduced to minimum degree, thus the laser-induction composite cladding technology of preparing preparing high performance flawless coating causes the broad interest of people.But, the alloy powder that laser-induction composite cladding flawless coating uses, also usually alloy powder used for hot spraying is adopted, although the thermograde in laser-induction composite cladding process obtains and reduces significantly, but alloy powder used for hot spraying differs comparatively large with thermophysical property between base material, only can prepare small part high-performance flawless coating in less laser-induction composite cladding process window.
Summary of the invention
The object of this invention is to provide a kind of laser-induction composite cladding special metals powder, the chemical composition of this special metals powder is: C0.2 ~ 1%; W1.0 ~ 5.0%; Si1.5 ~ 3.5%; B0.25 ~ 2.5%; Cr10.0% ~ 30.0; Mo3 ~ 6%; Ni10 ~ 20%; W3 ~ 8%; B0.2 ~ 1%; TiC10 ~ 30%; Surplus is Fe.
Special metals powder of the present invention is prepared by following operation: vacuum high-frequency induction melting, and----------dry----filter--washing--drying, the special metals powder size of formation is 20 ~ 60 μm to chemical nickel plating in washing in activation in screening in atomization.
Compared with prior art, a kind of laser provided by the invention-induction composite cladding special metals powder has the following advantages: special metals powder of the present invention have passed through chemical nickel plating process in preparation process, namely at the coated one deck nickel of copper alloy powder outer surface, define core--shell structure, effectively can improve the high temperature oxidation resistance of special metals powder in laser-induction composite cladding process.
Detailed description of the invention
Embodiment 1
A kind of laser-induction composite cladding special metals powder of the present invention, chemical composition is: C0.2 ~ 0.8%; W2.0 ~ 5.0%; Si1.5 ~ 2.5%; B0.25 ~ 2.5%; Cr15.0% ~ 25.0; Mo3 ~ 5%; Ni10 ~ 15%; W3 ~ 6%; B0.2 ~ 1%; TiC15 ~ 30%; Surplus is Fe.Special metals powder of the present invention is prepared by following operation: vacuum high-frequency induction melting, and----------dry----filter--washing--drying, the special metals powder size of formation is 40 ~ 60 μm to chemical nickel plating in washing in activation in screening in atomization.
Embodiment 2
A kind of laser-induction composite cladding special metals powder of the present invention, chemical composition is: C0.2 ~ 1%; W1.0 ~ 5.0%; Si1.5 ~ 3.5%; B1.5 ~ 2.5%; Cr15.0% ~ 30.0; Mo4.5 ~ 5.5%; Ni10 ~ 20%; W3 ~ 8%; B0.2 ~ 1%; TiC10 ~ 30%; Surplus is Fe.Special metals powder of the present invention is prepared by following operation: vacuum high-frequency induction melting, and----------dry----filter--washing--drying, the special metals powder size of formation is 20 ~ 50 μm to chemical nickel plating in washing in activation in screening in atomization.
Claims (2)
1. laser-induction composite cladding special metals powder, is characterized in that the chemical composition of this special metals powder is: C0.2 ~ 1%; W1.0 ~ 5.0%; Si1.5 ~ 3.5%; B0.25 ~ 2.5%; Cr10.0% ~ 30.0; Mo3 ~ 6%; Ni10 ~ 20%; W3 ~ 8%; B0.2 ~ 1%; TiC10 ~ 30%; Surplus is Fe.
2. a kind of laser-induction composite cladding special metals powder according to claim 1,----------dry----filter--washing--drying, the special metals powder size of formation is 20 ~ 60 μm to chemical nickel plating in washing in activation in screening in atomization to it is characterized in that described special metals powder is prepared by following operation: vacuum high-frequency induction melting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410477449.7A CN104226982A (en) | 2014-09-18 | 2014-09-18 | Alloy powder special for laser-induction combined cladding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410477449.7A CN104226982A (en) | 2014-09-18 | 2014-09-18 | Alloy powder special for laser-induction combined cladding |
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| Publication Number | Publication Date |
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| CN104226982A true CN104226982A (en) | 2014-12-24 |
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| CN201410477449.7A Pending CN104226982A (en) | 2014-09-18 | 2014-09-18 | Alloy powder special for laser-induction combined cladding |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106807934A (en) * | 2015-11-29 | 2017-06-09 | 印杰 | A kind of high abrasion mould laser reinforcing powder |
| CN107513643A (en) * | 2017-10-29 | 2017-12-26 | 吉林大学 | Laser melting coating Co-base alloy material and product |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030116234A1 (en) * | 2001-12-21 | 2003-06-26 | Santella Michael L. | Consumable welding filler metal for cladding alloys |
| CN1854317A (en) * | 2005-04-19 | 2006-11-01 | 沈阳大陆激光技术有限公司 | Powdery alloy processing material in site by movable laser smelt-coating process |
| CN102021559A (en) * | 2009-09-09 | 2011-04-20 | 沈阳大陆激光技术有限公司 | Cobalt-based alloy powder for laser cladding of steam turbine last-stage blade |
| CN102168210A (en) * | 2011-04-07 | 2011-08-31 | 杭州博华激光技术有限公司 | Laser cladding technological method and alloy material for laser cladding |
| CN102899664A (en) * | 2012-11-15 | 2013-01-30 | 丹阳惠达模具材料科技有限公司 | Laser cladding alloy powder and preparation method thereof |
-
2014
- 2014-09-18 CN CN201410477449.7A patent/CN104226982A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030116234A1 (en) * | 2001-12-21 | 2003-06-26 | Santella Michael L. | Consumable welding filler metal for cladding alloys |
| CN1854317A (en) * | 2005-04-19 | 2006-11-01 | 沈阳大陆激光技术有限公司 | Powdery alloy processing material in site by movable laser smelt-coating process |
| CN102021559A (en) * | 2009-09-09 | 2011-04-20 | 沈阳大陆激光技术有限公司 | Cobalt-based alloy powder for laser cladding of steam turbine last-stage blade |
| CN102168210A (en) * | 2011-04-07 | 2011-08-31 | 杭州博华激光技术有限公司 | Laser cladding technological method and alloy material for laser cladding |
| CN102899664A (en) * | 2012-11-15 | 2013-01-30 | 丹阳惠达模具材料科技有限公司 | Laser cladding alloy powder and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106807934A (en) * | 2015-11-29 | 2017-06-09 | 印杰 | A kind of high abrasion mould laser reinforcing powder |
| CN107513643A (en) * | 2017-10-29 | 2017-12-26 | 吉林大学 | Laser melting coating Co-base alloy material and product |
| CN107513643B (en) * | 2017-10-29 | 2019-04-02 | 吉林大学 | Laser melting coating Co-base alloy material and product |
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Application publication date: 20141224 |