Nickel core coating braze coating material as well as preparation method and braze coating method thereof
A technology of nickel-based brazing filler metal and coating, applied in welding/cutting media/materials, welding equipment, manufacturing tools, etc., can solve the problems of easy oxidation and deterioration, affecting the quality of brazing coating, and not easy to oxidize, so as to promote wet spreading, Stable welding performance, not easy to absorb moisture and oxidize
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0061] According to another aspect of the present invention, the present invention also provides a method for preparing the above-mentioned nickel core flux-coated brazing material, the preparation method comprising: disposing the brazing filler metal powder, the hard particles and the first flux into suspension according to the proportions Slurry, and then press-coated on the surface of the pure nickel core after texturing to obtain a drug skin layer; spray the second flux on the surface of the drug skin layer to obtain a hardened layer; then spray a silicate solution on the surface of the hardened layer to obtain a protective layer, which is obtained after drying. Said nickel core powder coating brazing material. The drying temperature is preferably 120°C to 160°C, such as but not limited to 120°C, 130°C, 140°C, 150°C or 160°C, and the drying method is preferably tunnel drying.
[0062] The preparation method of the above nickel core flux-coated brazing material provided by ...
Embodiment 1
[0074] This embodiment provides a nickel-core flux-coated brazing material, the structure of which is as follows: figure 1 and figure 2 shown. It consists of a nickel inner core 100 , a drug skin layer 200 , a hardened layer 300 and a protective layer 400 from the inside to the outside. Select BNi-2 nickel-based solder (BNi85.4Cr7Si4.5B3.1Fe3).
[0075] Nickel inner core 100: Take a pure nickel wire with a diameter of 1.0 mm and a length of 11 m, and weigh the nickel wire to be 70 g.
[0076] The coating layer 200: the mass of the nickel wire is 70g, and the total mass of the nickel-based brazing filler metal is 82g. According to the mass percentage of each element of the nickel-based solder, the other elements Cr, Si, B, and Fe in the nickel-based solder are calculated, with a total of 12g, that is, the total mass of the solder metal powder is 12g, which is composed of Cr, Si, B, and Fe, and the mass The ratio is 7:4.5:3.1:3.
[0077]The mass fraction of WC is 15%, and ...
Embodiment 2
[0083] This embodiment provides a nickel-core flux-coated brazing material, which is different from Embodiment 1 in that the hard particles in the flux-coated layer are 45% diamond particles, the nickel-based brazing filler metal is BNi76CrP, and the mass of the nickel wire is 70 g. Then the total mass of the nickel-based brazing filler metal is 92g. According to the mass percentage of each element of the nickel-based solder, the other elements Cr and P in the nickel-based solder are calculated, and the total is 22g, that is, the total mass of the solder metal powder is 22g, which is composed of Cr and P, and the mass ratio is 14:10.
[0084] The mass fraction of diamond is 45%, and the mass fraction of the first flux is 10%, then the mass fraction of the solder metal powder accounts for 45% of the coating layer. From this, it can be calculated that the weight of the entire coating layer is 48.9g, thus calculating The mass of the WC was 22g, and the mass of the first flux was ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Granularity | aaaaa | aaaaa |
| Granularity | aaaaa | aaaaa |
| Diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More