A kind of preparation method of sandwich structure of metal egg box
A sandwich structure, egg box technology, applied in metal processing equipment, metal processing, manufacturing tools, etc., can solve problems such as difficult forming, and achieve high performance, stable performance, and good interlayer bonding.
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[0039] A method for preparing a sandwich structure of a metal egg box, the sandwich structure of the metal egg box is plate-shaped or tubular, and the method for preparing the sandwich structure of the metal egg box comprises the following steps:
[0040] Step 1. Set a connection point 2 for connection and fixation on the surface of the metal foil 1 as the core material. On the surface of the metal foil 1, the area other than the connection point 2 is a non-connection area 3. In the non-connection area 3 Coating anti-soldering flux or anti-soldering foaming agent, wherein the anti-soldering-foaming agent is formed by adding a foaming agent such as titanium hydride to the anti-soldering flux;
[0041] Step 2. When the sandwich structure of the metal egg box is plate-shaped, the following steps are included:
[0042] Step 2.1a, assemble the metal foil 1 and the metal inner shell 4 and the metal outer shell 5 as shell materials, the metal inner shell 4 and the metal outer shell 5 a...
Embodiment 1
[0056] The preparation process scheme of the TC4 titanium alloy egg carton sandwich structure is as follows:
[0057] First, cut the TC4 titanium alloy foil (metal foil 1) with a thickness of 0.2mm and the TC4 titanium alloy sheet (metal inner shell 4 and metal outer shell 5) with a thickness of 10.8mm into the required size, and then perform surface cleaning. Process, where the foil is used as the core and the sheet is used as the face plate.
[0058] Step 1. Set a connection point 2 for connection and fixation on the surface of each layer of metal foil 1 as the core material. On the surface of the metal foil 1, the area other than the connection point 2 is a non-connection area 3. The connection area 3 is coated with solder stop flux. Solder stop flux can be coated on one side or both sides (that is, one side or two sides coating), and the connection points 2 are arranged in uniform rows and rows on the surface of the metal foil 1. When the two sides are coated During the ...
Embodiment 2
[0065] The preparation process scheme of the plate-like sandwich structure of aluminum alloy egg box is as follows:
[0066] First, cut the aluminum alloy foil (metal foil 1) and plate (metal inner shell 4 and metal outer shell 5) into the required size, and then perform surface chemical cleaning treatment, in which the foil is used as the core board and the plate is used as the panel .
[0067] Step 1. Set a connection point 2 for connection and fixation on the surface of each layer of metal foil 1 as the core material. On the surface of the metal foil 1, the area other than the connection point 2 is a non-connection area 3. The connection area 3 is coated with solder stop flux, and the connection point 2 is coated with solder flux. Solder stop flux can be coated on one side or both sides (that is, one side or two sides coating), and the connection points 2 are arranged in uniform rows and rows on the surface of the metal foil 1. When the two sides are coated During the pro...
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