CN85108439A - Spray coating materials for combined layers - Google Patents
Spray coating materials for combined layers Download PDFInfo
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- CN85108439A CN85108439A CN85108439.7A CN85108439A CN85108439A CN 85108439 A CN85108439 A CN 85108439A CN 85108439 A CN85108439 A CN 85108439A CN 85108439 A CN85108439 A CN 85108439A
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Abstract
The invention belongs to from conjunction with spray material, be especially suitable for use as the key coat of red copper or copper master alloy matrix.Spray material of the present invention is that composition is Ni 15-39%, Cr 3--15%, and A 13-18% (weight %), all the other are the wire rod of copper.Wherein the content of copper is greater than the content of nickel.Wire rod is made up of crust and other metal-powder blended core body of a kind of metal in the component.This spray material also is applicable to matrixes such as general steel, brass, bronze simultaneously except forming from combining the coating with red copper and copper master alloy.
Description
The invention belongs to from conjunction with spray material, be especially suitable for use as the key coat of copper and copper master alloy matrix.
For guaranteeing flame spray coating and the firm metallurgical binding of matrix, matrix surface must pass through special processing, as removes surperficial foul, grease, carries out surface roughening processing etc. then.Combine not firm matrix with coating for some, perhaps through the thin matrix of sandblast or mechanical roughening treatment meeting distortion, then earlier spraying one deck in conjunction with bottom after, could spray needed working lining again.
That uses at present has Mo silk, Ni/Al silk, Ni/Al powder, aluminium nickel coat powder, Ni-Cu/Al powder, Ni-Cr-Al-Cu powder etc. in conjunction with the bottom spray material certainly.They can both combine bottom certainly with formation such as common iron, stainless steel, nickel and nickelalloy, brass, bronze.But all can not form from combining bottom with red copper and copper master alloy.
Typical composition is a Cu-10%Al(weight) aluminium copper-clad composite powder be a kind of from conjunction with spray material (METCO Technical Bulletin, 1978.12.8 version), it can form from combining with steel, brass, bronze, but can not form from combining with the red copper matrix.
The thermospray that proposes among the GB2073248A is Al2～30% in conjunction with the composition of the powder coating material that coating is used, and Cr 2～25%, and Si 0～8%, and B 0～4%, and Fe 0～6%, and all the other are Cu or Ni or (Cu+Ni).This powder coating material has good adhesive power as the key coat of steel matrix, and anti-seawater corrosion, can bear machining; But powder particle disperses in spraying process easily, can not complete reaction generate desired phase, and oxidation produces a large amount of smog easily again, both has been difficult to guarantee coating quality, again serious environment pollution.And this powdered material can not as red copper and copper master alloy matrix from conjunction with bottom.
The composite spraying line that proposes among the US3436248.It is the metal-powder of another component of packing in a kind of metal-coating of component, and the perhaps mixture of two kinds of powder is through swaging or drawing forms.The fusing point of outer tube metal is lower than the fusing point of core metal.Also the powder of several components can be added and directly be processed into line after suitable binding agent becomes integral body.During wire spraying, can make each element fully participate in reaction.But the wire rod of this composition can not be used for red copper or copper master alloy from conjunction with bottom.
The objective of the invention is to design a kind of from conjunction with the bottom spray material, it can form from combining coating with red copper and copper master alloy, also is applicable to matrixes such as general steel, brass, bronze simultaneously.
Another object of the present invention is the spray material of design, and smog is few in spraying process, and the oxide inclusion of coating is few, can reduce environmental pollution, improves coating quality.
Making has enough bonding strengths must correctly select appropriate ingredients and state between coating and matrix.Only in spraying process, thermopositive reaction takes place between each component produce enough heats, the material that makes coating and matrix produce mortise just is fit to do from combining spray material.For oxidation and the coating particle that reduces spraying process floating coat particle can participate in reaction fully, enough temperature when arriving matrix, the coating particle of spray gun ejection are arranged, between coating and matrix, produce good binding between the particle of coating inside, should adopt wire rod.The spray material that the present invention proposes is a kind of Ni15-39% of containing, Cr3-15%, Al3-18%(weight percent) all the other are the wire rod of copper, wherein the content of copper is greater than the content of nickel.The thermopositive reaction that can be taken place when forming compound between nickel aluminium in spraying process, copper aluminium, the aluminium chromium keeps particle enough temperature shock to be arranged to matrix surface.Wire rod is made up of outer tube and core body, and outer tube is the lower metal of fusing point in the each component, and core body is other metal-powder in the component.
For obtaining comprehensive performance, the composition of material is Ni31-37%, Cr7.5-8.5%, Al6-11%(weight percent), all the other are copper.
For the ease of processing, the outer tube of wire rod is a copper, and core body is powder such as chromium, aluminium, nickel.
The various powder that use among the present invention can be the spray material different shape commonly used and the powder of size, if use-80～160 purpose nickel powders, and-200 purpose chromium powders, 17 microns aluminium powder wherein has 80% spherical powder then better.
Available general various working methods such as rolling, draw, swage are made wire rod with excellent base.For example the uniform nickel of thorough mixing, chromium, aluminium powder form are packed in the copper pipe, directly swaging after clogging with stopper in two ends, the line base can be worked into desired size.
Spray Wire of the present invention be particularly suitable for doing red copper and copper master alloy matrix in conjunction with bottom, spraying back coating print does not ftracture through 90 degree bendings, can stand Vehicle Processing, mill processing; Coatingsurface roughness height can combine as bronze, alumina-ceramic, silver etc. with multiple working lining.
Spray Wire of the present invention also be fit to do other matrixes such as steel, brass, bronze in conjunction with bottom.
Spray Wire of the present invention smog in spraying process is few, and each component can participate in reaction fully; In the coating simple substance component of spray material seldom, coating quality is good.
Fig. 1 is the diffracted ray of the X ray facies analysis of method and equipment for coating of coil and stsip of the present invention.
Fig. 2 is the diffracted ray with the X ray facies analysis of the powder coating of the identical composition of wire rod of the present invention.
Fig. 3 uses Spray Wire of the present invention after spraying on the red copper matrix, the concentration curve of the copper at interface, chromium element.
Fig. 4 uses Spray Wire of the present invention after spraying on the red copper matrix, the copper at interface, nickel element concentration change curve.
Fig. 5 uses Spray Wire of the present invention after spraying on the red copper matrix, the copper at interface, aluminium element concentration curve.
In Fig. 3～5,1,2,3,4 represent copper respectively, chromium, the concentration of element change curve of nickel and aluminium.
Further specify enforcement of the present invention and effect with the following example.
Example one, with purity is nickel powder (80 order) more than 99.5%, chromium powder (200 order) aluminium powder (17 microns) is pressed 36.9%Ni, 7.6%Cr, the 11.5%Al(weight percent) behind the uniform mixing, packing in the annealing copper tube of φ 6X0.5 millimeter, swages by every time working modulus of about 16% after stopping up in two ends, make the wire rod of 3.0 millimeters of φ, finally through 350 ℃ of annealing 10 minutes.
Spray Wire of the present invention is used the oxy-acetylene wire pistol, and spraying parameter is: air pressure 0.55-0.6 megabar, and oxygen pressure 0.45-0.5 megabar, flow is 0.8 meter
3/ hour; Acetylene gas pressure 0.11-0.12 megabar, flow is 0.9 meter
3/ hour; Advance a speed and be the 190-200 millimeter/minute, spray distance is the 150-180 millimeter.
The measuring method of the bonding properties of the coating of Shi Yonging is as follows in the present invention:
1. coating bonding properties qualitative reaction:
With the matrix sheet material of 1.5X30X80 millimeter, the coating of 0.2 millimeter thickness of spraying is then with bending shaft 90 degree of test piece around 10 millimeters of φ.
2. anchoring strength of coating quantitative testing:
Matrix right cylinder with two sections φ 35X40 millimeters, sprayed coating on one section the circular section is coated with epoxy type tackiness agent (2W-3) on the circular section of another section therein, and these two right cylinders are opposed bonding, on material stretch test machine, measure its pulling-off force then, calculate its bonding strength again.The room temperature shearing resistance of the 2W-3 caking agent of selecting for use 〉=300 kilograms per centimeter
2
With the Spray Wire that this composition is made, after spraying on red copper, brass and the low-carbon (LC) steel disc, its bonding properties can not ftracture by qualitative reaction.With the bonding strength of red copper be 1.76-1.88 kilogram/millimeter
2, with the bonding strength of brass be 1.8-2.3 kilogram/millimeter
2For further specifying the effect of Spray Wire of the present invention, use the Spray Wire of embodiment of the invention composition respectively, the spraying powder and the Metco445 of identical composition make spray test to red copper, brass and low carbon steel substrate, respectively make three samples, matrix surface is after oil removing and sandblasting, adopt the spraying coating process spraying that is fit to various spray material respectively, the results are shown in Table 1.
The spray test of several spray material of table 1. on different matrix
The results are shown in Figure 1,2 to what the method and equipment for coating of coil and stsip of this kind composition of the present invention and powder coating with composition carried out the X ray facies analysis.As can be seen from the figure the both has main phase Ni
3Al, sosoloid such as NiAl and Cu-Ni.But more Cu is arranged in the powder coating
2O, Ni, Al phase.Oxide inclusion is many in this explanation powder coating, loose copper powder is oxidation easily in spraying process, and owing to each component can not reasonable disposition fuse, having more Ni and Al powder not to react in spraying just flies on the matrix, can not make coating particle that enough heats are arranged, this must influence coating quality, and three samples all can not bear Vehicle Processing, have in addition after spraying at once integral body come off.
The concentration of element change curve of utilized scanning electron microscope analysis method and equipment for coating of coil and stsip of the present invention and copper basal body interface shows, existing mutual diffusion (seeing Fig. 3-5) between each element in the wire rod and matrix prove between coating after spraying and matrix to have formed micro-metallurgical binding.
Because spray material has from the bonded characteristic, the coating of spray material of the present invention still has bonding properties preferably with clear base surface without roughening treatment.
Use spray material of the present invention as brook in conjunction with bottom, spraying Cu-10Al alloy working lining can bear machining.
Behind the key coat of spraying material of the present invention on the stainless steel part, spray aluminum oxide working lining again, coating is in conjunction with firmly.
Example two, the identical raw material in the use-case one is pressed 15.3%Ni, 4%Cr, 8.2%Al, all the other are the ratio of copper (weight %), in the annealing copper tube with 9 * 0.9 millimeters of the φ of packing into behind nickel, chromium, the aluminium powder uniform mixing, use-case one identical technology is made wire rod.
This wire rod can form satisfied key coat at steel with same spraying coating process on bronze and the red copper matrix.
Example three, identical raw material in the use-case one is pressed 23%Ni, 5.4%Cr, 13%Al, all the other are the ratio of copper (weight %), as outer tube, make wire rod by the technology of example one with copper pipe.This wire rod can be used for blast-furnace tuyere, cinder notch in conjunction with bottom.
Claims (4)
1, a kind of is the key coat thermal spraying material that base contains nickel, chromium, aluminium with copper, feature of the present invention is that said material is to be 15-39%Ni by component, 3-15%Cr, 3-18%Al (weight percent), the wire rod that copper surplus is formed, wherein the content of copper is greater than the content of nickel; Wire rod is made up of outer tube and core body, and outer tube is made of a kind of metal in the said component, and core body is made of the mixed powder of other metal in the said component.
2,, it is characterized in that said material is is 31-37%Ni by component, 7.5-8.5%Cr, 6-11%Al(weight percent by the said key coat thermal spraying material of claim 1), surplus is the wire rod of copper composition.
3, by the said key coat thermal spraying material of claim 1.2, it is characterized in that said outer tube is made of the lower metal of fusing point in the component.
4, by the said key coat thermal spraying material of claim 1.2, it is characterized in that said outer tube is a copper pipe, said core body is the mixed powder of nickel, chromium, aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85108439A CN1007734B (en) | 1985-11-27 | 1985-11-27 | Spray coating materials for combined layers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85108439A CN1007734B (en) | 1985-11-27 | 1985-11-27 | Spray coating materials for combined layers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85108439A true CN85108439A (en) | 1987-06-17 |
| CN1007734B CN1007734B (en) | 1990-04-25 |
Family
ID=4796013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85108439A Expired CN1007734B (en) | 1985-11-27 | 1985-11-27 | Spray coating materials for combined layers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1007734B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1294292C (en) * | 2003-08-08 | 2007-01-10 | 北京有色金属研究总院 | One-step antiwear composite silk material and its use |
| CN102016089B (en) * | 2008-05-07 | 2012-08-22 | 独立行政法人科学技术振兴机构 | Brass alloy powder, brass alloy extruded material and method for producing the brass alloy extruded material |
| CN104862640A (en) * | 2015-05-29 | 2015-08-26 | 山东鑫茂奥奈特复合固体润滑工程技术有限公司 | Method for preparing anti-erosion wearing-resistant coating of slurry pump overflowing part |
| CN111235512A (en) * | 2020-03-16 | 2020-06-05 | 重庆国际复合材料股份有限公司 | Preparation method of copper cooling sheet |
| CN114029492A (en) * | 2021-10-27 | 2022-02-11 | 北京工业大学 | Seamless nickel-aluminum composite powder core wire and preparation method thereof |
-
1985
- 1985-11-27 CN CN85108439A patent/CN1007734B/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1294292C (en) * | 2003-08-08 | 2007-01-10 | 北京有色金属研究总院 | One-step antiwear composite silk material and its use |
| CN102016089B (en) * | 2008-05-07 | 2012-08-22 | 独立行政法人科学技术振兴机构 | Brass alloy powder, brass alloy extruded material and method for producing the brass alloy extruded material |
| CN104862640A (en) * | 2015-05-29 | 2015-08-26 | 山东鑫茂奥奈特复合固体润滑工程技术有限公司 | Method for preparing anti-erosion wearing-resistant coating of slurry pump overflowing part |
| CN104862640B (en) * | 2015-05-29 | 2017-08-25 | 山东鑫茂奥奈特复合固体润滑工程技术有限公司 | A kind of preparation method of Wet Parts of slurry pump Anti-erosion wear-resistant coating |
| CN111235512A (en) * | 2020-03-16 | 2020-06-05 | 重庆国际复合材料股份有限公司 | Preparation method of copper cooling sheet |
| CN114029492A (en) * | 2021-10-27 | 2022-02-11 | 北京工业大学 | Seamless nickel-aluminum composite powder core wire and preparation method thereof |
| CN114029492B (en) * | 2021-10-27 | 2024-04-16 | 北京工业大学 | Seamless nickel-aluminum composite powder core wire and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1007734B (en) | 1990-04-25 |
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