A kind of metal sheet and its preparation method and application
A metal sheet and metal powder technology, applied in the field of dissimilar metal welding, can solve the problems of high cost of composite transition layer and general connection effect of a single transition metal, and achieve the effects of high strength, improved strength and simple preparation process
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[0048] The invention also discloses a method for preparing a metal sheet. The steps include: separately preparing a metal slurry using niobium, vanadium and zinc as metal powder raw materials, and a metal slurry using chromium and zinc powder as metal powder raw materials; The metal pastes are evenly attached to the surfaces of both sides of the copper foil.
[0049] Wherein the preparation method of metal slurry comprises:
[0050] a. metal powder by mass ratio: metal binder: water=5:1~3:15~25 ratio takes metal powder, metal binder and water;
[0051] b. Heat the water to 90-100°C, add the metal adhesive to the water to dissolve, cool to room temperature, and obtain the bonding solution;
[0052] c. Add the metal powder into the bonding solution, stir to make the mixture uniform, and obtain the metal slurry;
[0053] Wherein, the mass percentage of zinc in the metal powder is 5-15%; the mass ratio of niobium and vanadium in the metal powder using niobium, vanadium and zinc ...
Embodiment 1
[0070] 1. Preparation of metal sheets:
[0071] Prepare metal pastes with niobium, vanadium, and zinc as metal powder raw materials, and chromium and zinc powders as metal powder raw materials:
[0072] Wherein, the mass percentage of zinc in the metal powder is 5%; the mass ratio of niobium and vanadium in the metal powder with niobium, vanadium and zinc as raw materials is 2.5:1.
[0073] Steps include:
[0074]A. metal powder by mass ratio: metal binder: take by weighing metal powder, metal binder and water in the ratio of water=5:1:15;
[0075] b. Heat the water to 90°C, add the metal adhesive to the water to dissolve, cool to room temperature, and obtain the bonding solution;
[0076] c. Add the metal powder into the bonding solution, stir to make the mixture uniform, and obtain the metal slurry;
[0077] Put one kind of metal slurry into the GR630 high-pressure spraying machine, spray on one side of the copper foil surface, and after drying; add another metal slurry i...
Embodiment 2
[0081] 1. Preparation of metal sheets:
[0082] Prepare metal pastes with niobium, vanadium, and zinc as metal powder raw materials, and chromium and zinc powders as metal powder raw materials:
[0083] Wherein, the mass percentage of zinc in the metal powder is 10%; the mass ratio of niobium and vanadium in the metal powder with niobium, vanadium and zinc as raw materials is 3:1.
[0084] Steps include:
[0085] A. be metal powder by mass ratio: metal binder: the ratio of water=5:2:20 takes by weighing metal powder, metal binder and water;
[0086] b. Heat the water to 95°C, add the metal adhesive to the water to dissolve, cool to room temperature, and obtain the bonding solution;
[0087] c. Add the metal powder into the bonding solution, stir to make the mixture uniform, and obtain the metal slurry;
[0088] Put one kind of metal slurry into the GR630 high-pressure spraying machine, spray on one side of the copper foil surface, and after drying; add another metal slurry ...
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