CN104195491A - Method for preparing high-melting-point metal coating by arc spraying - Google Patents
Method for preparing high-melting-point metal coating by arc spraying Download PDFInfo
- Publication number
- CN104195491A CN104195491A CN201410411141.2A CN201410411141A CN104195491A CN 104195491 A CN104195491 A CN 104195491A CN 201410411141 A CN201410411141 A CN 201410411141A CN 104195491 A CN104195491 A CN 104195491A
- Authority
- CN
- China
- Prior art keywords
- metal coating
- spraying
- refractory metal
- electric arc
- arc spraying
- 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
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
The invention discloses a method for preparing a high-melting-point metal coating by arc spraying. The high-melting-point metal coating comprises a base layer, a middle layer and a metal layer. The preparation method comprises the following steps: (1) surface treatment of the substrate material; (2) acetylene-oxygen flame spraying of the middle layer; (3) surface sanding treatment of the middle layer; and (4) arc spraying of the high-melting-point metal coating. The thickness of the coating prepared by the method is 2-5mm. The method is reasonable in preparation steps and simple and convenient to operate, and can effectively avoid the problem of great difference of thermal expansion coefficients between the high-melting-point metal and substrate; and the prepared high-melting-point metal coating has the advantages of compact surface, firm combination between the middle layer and substrate, no warping, cracking or other defects, high thickness and wide application range.
Description
Technical field
The present invention relates to metallic coating technical field, particularly relate to a kind of method that refractory metal coating is prepared in electric arc spraying.
Background technology
Refractory metal coating coating material used is rare metal class, and this metalloid has that hardness is large, good heat resistance, the advantage such as corrosion-resistant, is widely used industrial.Electric arc spraying is prepared metallic coating and is had simple and convenient, shaping efficiency advantages of higher, is the preparation method who extensively adopts in metallic coating preparing technical field.But adopt electric arc spraying process directly in the time that refractory metal coating is prepared in substrate material surface spraying, because difference of thermal expansion coefficients is between the two larger, and refractory metal is difficult to melting, make working parameter be difficult to grasp, and then make shrinking percentage, thermal stresses and the porosity of the metallic coating of preparing all larger, coating is yielding, and in substrate material surface generation warpage, ftracture and the defect such as peel off.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of method that refractory metal coating is prepared in improved electric arc spraying, can effectively solve electric arc spraying and prepare the problems referred to above that refractory metal coating exists.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of method that provides electric arc spraying to prepare refractory metal coating, and described refractory metal coating comprises stratum basale, middle layer and metal level, described preparation method comprises the steps:
(1) surface treatment of base material: substrate material surface is carried out to sandblast grinding process, then it is put into successively to the ultrasonator ultrasonic cleaning 5～10min respectively that fills acetone and clear water, dry moisture after taking-up for subsequent use;
(2) acetylene-oxygen flame spraying middle layer: the linear thermoplastic's plastics taking diameter as 5～15mm are spray material, adopts the thermoplastic interlayer of acetylene-oxygen spraying coating process at substrate surface spraying one deck of processing through step (1);
(3) interlayer surfaces grinding process: by after the thermoplastic interlayer self-vulcanizing 6～12h of preparation in step (2),, then clean and dry with clear water smooth its surface finish with abrasive band;
(4) electric arc spraying hot metal coating: carry out electric arc spraying refractory metal coating in surface treated interlayer surfaces, described spraying parameter is: spray voltage 30～50V, spraying current 100～150A, spray distance 250～280mm, 45～90 ° of spray angles.
In a preferred embodiment of the present invention, described thermoplastics is polyethylene or polypropylene.
In a preferred embodiment of the present invention, in described step (2), described acetylene-oxygen thermospray temperature is 150～180 DEG C.
In a preferred embodiment of the present invention, in described step (3), the polishing speed in described abrasive band is 8～10m/s, and after described polishing, the thickness in middle layer is 1.5～3mm.
In a preferred embodiment of the present invention, the thickness of described refractory metal coating is 2～5mm.
The invention has the beneficial effects as follows: the method for refractory metal coating is prepared in a kind of electric arc spraying of the present invention, its preparation section is reasonable, simple to operation, can effectively avoid the large problem of difference of thermal expansion coefficients between refractory metal and base material, prepared refractory metal coatingsurface densification, and between middle layer and substrate, combination is firm, without the defect such as warpage, cracking, and its thickness is larger, applied range.
Embodiment
Below preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
The embodiment of the present invention comprises:
Embodiment 1
(1) surface treatment of base material: taking stainless steel as base material, and to adopt particle diameter be that the silicon carbide of 100 μ m carries out sandblast grinding process to its surface, described blasting craft is: blasting pressure 0.4MPa, sandblast is apart from 10mm, 90 ° of sandblast angles, then it is put into successively to ultrasonator ultrasonic cleaning 10min and the 5min respectively that fills acetone and clear water, after taking-up, dry moisture for subsequent use;
(2) acetylene-oxygen flame spraying middle layer: the wire vinyon taking diameter as 5mm is spray material, adopts acetylene-oxygen spraying coating process, at 150 DEG C, above-mentioned stainless steel surface after treatment is sprayed to layer of polyethylene middle layer;
(3) interlayer surfaces grinding process: above-mentioned polyethylene middle layer is placed under room temperature and is solidified after 6～12h, with abrasive band with the rotating speed of 8m/s by smooth its surface finish, clean and dry with clear water, obtaining thickness is the thermoplastic polyethylene middle layer of 1.5mm;
(4) electric arc spraying hot metal coating: at surface treated interlayer surfaces electric arc spraying high-melting-point molybdenum coating, described spraying parameter is: spray voltage 30V, spraying current 150A, spray distance 250mm, 45～90 ° of spray angles, obtain a layer thickness and are the metallic coating of 2 surface compact.
Embodiment 2
(1) surface treatment of base material: taking cast iron as base material, and to adopt particle diameter be that the silicon carbide of 80 μ m carries out sandblast grinding process to its surface, described blasting craft is: blasting pressure 0.45MPa, sandblast is apart from 10mm, 90 ° of sandblast angles, then it is put into successively to ultrasonator ultrasonic cleaning 10min and the 5min respectively that fills acetone and clear water, after taking-up, dry moisture for subsequent use;
(2) acetylene-oxygen flame spraying middle layer: the wire acrylic plastering taking diameter as 10～15mm is spray material, adopts acetylene-oxygen spraying coating process, at 160～180 DEG C, above-mentioned Cast Iron Surface after treatment is sprayed to one deck polypropylene middle layer;
(3) interlayer surfaces grinding process: above-mentioned polyethylene middle layer is placed under room temperature and is solidified after 6～12h, with abrasive band with the rotating speed of 10m/s by smooth its surface finish, clean and dry with clear water, obtaining thickness is the thermoplastic polypropylene middle layer of 3mm;
(4) electric arc spraying hot metal coating: in surface treated interlayer surfaces electric arc spraying high-melting-point Cr-Zr alloy coating, described spraying parameter is: spray voltage 50V, spraying current 100A, spray distance 280mm, 45～90 ° of spray angles, obtain a layer thickness and are the metallic coating of 5 surface compact.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. a method for refractory metal coating is prepared in electric arc spraying, it is characterized in that, described refractory metal coating comprises stratum basale, middle layer and metal level, and described preparation method comprises the steps:
(1) surface treatment of base material: substrate material surface is carried out to sandblast grinding process, then it is put into successively to the ultrasonator ultrasonic cleaning 5～10min respectively that fills acetone and clear water, dry moisture after taking-up for subsequent use;
(2) acetylene-oxygen flame spraying middle layer: the linear thermoplastic's plastics taking diameter as 5～15mm are spray material, adopts the thermoplastic interlayer of acetylene-oxygen spraying coating process at substrate surface spraying one deck of processing through step (1);
(3) interlayer surfaces grinding process: by after the thermoplastic interlayer self-vulcanizing 6～12h of preparation in step (2),, then clean and dry with clear water smooth its surface finish with abrasive band;
(4) electric arc spraying hot metal coating: carry out electric arc spraying refractory metal coating in surface treated interlayer surfaces, described spraying parameter is: spray voltage 30～50V, spraying current 100～150A, spray distance 250～280mm, 45～90 ° of spray angles.
2. the method for refractory metal coating is prepared in electric arc spraying according to claim 1, it is characterized in that, described thermoplastics is polyethylene or polypropylene.
3. the method for refractory metal coating is prepared in electric arc spraying according to claim 1, it is characterized in that, in described step (2), described acetylene-oxygen thermospray temperature is 150～180 DEG C.
4. the method for refractory metal coating is prepared in electric arc spraying according to claim 1, it is characterized in that, in described step (3), the polishing speed in described abrasive band is 8～10m/s, and after described polishing, the thickness in middle layer is 1.5～3mm.
5. the method for refractory metal coating is prepared in electric arc spraying according to claim 1, it is characterized in that, the thickness of described refractory metal coating is 2～5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410411141.2A CN104195491A (en) | 2014-08-20 | 2014-08-20 | Method for preparing high-melting-point metal coating by arc spraying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410411141.2A CN104195491A (en) | 2014-08-20 | 2014-08-20 | Method for preparing high-melting-point metal coating by arc spraying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104195491A true CN104195491A (en) | 2014-12-10 |
Family
ID=52080852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410411141.2A Pending CN104195491A (en) | 2014-08-20 | 2014-08-20 | Method for preparing high-melting-point metal coating by arc spraying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104195491A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1812881A (en) * | 2003-08-07 | 2006-08-02 | 于西纳公司 | A metal-polyamide/polyethylene-metal laminate |
-
2014
- 2014-08-20 CN CN201410411141.2A patent/CN104195491A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1812881A (en) * | 2003-08-07 | 2006-08-02 | 于西纳公司 | A metal-polyamide/polyethylene-metal laminate |
Non-Patent Citations (2)
| Title |
|---|
| P. ZAJCHOWSKI 等: ""Evaluation of Three Dual-Wire Electric Arc-Sprayed Coatings: Industrial Note"", 《JOURNAL OF THERMAL SPRAY TECHNOLOGY》, vol. 5, no. 4, 31 December 1996 (1996-12-31), pages 457 - 462 * |
| 赵晓东 等: ""火焰喷涂超高分子聚乙烯涂层工艺及性能研究"", 《热喷涂技术》, vol. 4, no. 1, 31 March 2012 (2012-03-31), pages 28 - 31 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7033919B2 (en) | Plasma spray coating design using phase and stress control | |
| CN101191225A (en) | Antiseptic wearable coat and coating method thereof | |
| JP2017100938A (en) | Rare earth oxide-based corrosion resistant coating for semiconductor application | |
| CN105476490A (en) | Cookware with high wear resistance and manufacturing method of cookware | |
| CN101962767B (en) | Electron beam cladding modification method for high-temperature preset coating | |
| CN104451524B (en) | A kind of NiCrBSi coating production for minor diameter ball | |
| CN101869985B (en) | Method for preparing metal ceramic coating material with plasma/combustion synthesis/quasistatic pressing process | |
| CN104775087A (en) | Metal composite ceramic thermal barrier coating preparation method | |
| CN102618868A (en) | Method for obtaining composite coating by means of laser cladding of extrusion preset powder | |
| KR20190108693A (en) | Coating method of spray surface | |
| CN105239356A (en) | Composite ceramic coating for surface of SiC fiber and preparation method thereof | |
| CN104451675A (en) | Preparation method of ceramic sealing coating with high thermal shock resistance | |
| CN100540511C (en) | A kind of compound carbon resisting coating material and on matrix the preparation compound carbon resisting coating method | |
| CN108118326A (en) | A kind of increasing material manufacturing method of 3.87m high purity coppers rotary target material | |
| CN108044079A (en) | A kind of high-strength alloy and heat-stable ceramic laminated coating die casting and preparation method thereof | |
| CN104032256A (en) | Method for preparing wear-resisting corrosion-resisting nickel-based alloy coating | |
| CN104529527A (en) | Method for increasing surface roughness of man-made diamond single crystal | |
| CN104087936A (en) | Method for preparing anti-ablative coating of carbon-based composite material | |
| CN108977754A (en) | A kind of plasma spray coating process based on super fine composite powder | |
| CN103590048B (en) | Thermal sprayed coating on surface of metal material ultrasonic wave added presses gradual pressure working method | |
| CN104195491A (en) | Method for preparing high-melting-point metal coating by arc spraying | |
| CN109778098A (en) | A method of avoid difference of thermal expansion coefficients between high melting point metal film and substrate big | |
| CN113122795A (en) | Preparation method of yttrium oxide coating of quartz for semiconductor | |
| CN105154880B (en) | Turbo rotor groove milling cutter surface TiCN multi-layer composite coatings preparation technologies | |
| CN106694329A (en) | Metal powder spraying technological process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141210 |