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

Active Publication Date: 2021-11-02
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the connection effect of adding a single transition metal is general and the cost of the composite transition layer is high when titanium alloy and stainless steel are welded

Method used

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  • A kind of metal sheet and its preparation method and application
  • A kind of metal sheet and its preparation method and application
  • A kind of metal sheet and its preparation method and application

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preparation example Construction

[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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Abstract

The invention provides a metal sheet, which includes a copper foil layer, and a first adsorption layer and a second adsorption layer respectively attached on both sides of the copper foil layer; the first adsorption layer includes niobium, vanadium and zinc, and the second adsorption layer includes Chromium and zinc; wherein, the mass percentage of zinc in the first adsorption layer or the second adsorption layer is 5-15%; the mass ratio of niobium and vanadium in the first adsorption layer is 2.5-3.5:1. Also provided is a metal sheet preparation method, which respectively prepares metal slurries using niobium, vanadium, and zinc as metal powder raw materials, and chromium and zinc powder as metal powder raw materials; side surface. Also provided is a method of applying the metal sheet to the welding of titanium alloys and stainless steels. The metal sheet itself provided by the invention has high strength and reduces the cost; the preparation process is simple, and the welding quality is guaranteed. When applied to titanium alloy and stainless steel welding, it realizes layer-by-layer transition, which greatly improves the strength of welded joints.

Description

technical field [0001] The invention relates to the technical field of dissimilar metal welding, in particular to a metal sheet and a preparation method thereof, and a method for applying the metal sheet to the welding of titanium alloy and stainless steel. Background technique [0002] The titanium alloy and stainless steel are welded. The titanium alloy-stainless steel structure can combine the good weldability, wear resistance, and low cost of stainless steel with the low density and good corrosion resistance of titanium alloy, and give full play to the performance and economy of the two materials. complementary advantages. However, the physical and chemical differences between titanium alloy and stainless steel are quite large, and the strength of the joint formed by direct connection is low, so it cannot be widely used in industrial production. [0003] Studies have shown that adding transition metals between titanium alloy and stainless steel can obtain higher strengt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B15/01B32B15/20B32B15/18B32B33/00B23K31/02C22C27/02
CPCB23K31/02B32B15/01B32B15/18B32B15/20B32B33/00B32B2255/06B32B2255/205B23K2103/18C22C27/02
Inventor 张鹏贤禄建强张瑾房志忠庞义斌
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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