Manufacturing process of aluminum pot with stainless steel composite pot bottom
A manufacturing process, stainless steel technology, applied in household utensils, kitchen utensils, special materials for cooking utensils, etc., can solve problems that no one has solved, can not know the need for welding strength, undisclosed, etc.
Active Publication Date: 2014-10-15
DEA GENERAL AVIATION HLDG CO LTD
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Problems solved by technology
In the prior art, the process of welding aluminum plates on the outside of the stainless steel pot body is relatively mature, but the process of welding stainless steel sheets, especially 400 series ferritic stainless steel (also called stainless steel) on the outside of the bottom of the aluminum pot body is reversed. But no one has solved it yet
We searched relevant patent documents and found that, for example, the utility model patent with application number 201120406816.6 discloses the structure of welding the stainless steel sheet to the bottom of the aluminum pot, but does not disclose how to weld it. Therefore, it is impossible to know whether its welding strength meets the requirements for use. need
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[0024] Below in conjunction with accompanying drawing, the manufacturing process of the aluminum pan with the stainless steel composite pan bottom applying the technical scheme of the present invention will be further described.
[0025] Such as figure 1 Shown is a schematic structural view of an aluminum pot with a stainless steel composite bottom, including an aluminum pot body 1 with a housing cavity and a stainless steel sheet 2 compounded on the bottom outer surface 11 of the aluminum pot body 1 by welding. In order to weld the stainless steel sheet 2 onto the bottom outer surface 11 of the aluminum pot body 1, we adopt the following welding process:
[0026] The first step: prepare the stainless steel sheet 2 and the aluminum pot body 1 to be welded, and set solder between the stainless steel sheet 2 and the aluminum pot body 1 (not shown in the figure), wherein the stainless steel sheet 2 is a 400 series ferritic stainless steel .
[0027] Among them, such as Figure...
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Abstract
The invention relates to a manufacturing process of an aluminum pot with a stainless steel composite pot bottom. The aluminum pot comprises a aluminum pot body with an accommodating cavity and a stainless steel sheet composited to the outer side of the bottom of the aluminum pot body through welding. The welding process of the aluminum pot body and the stainless steel sheet includes the steps of firstly, preparing the stainless steel sheet and the aluminum pot body to be welded, wherein the stainless steel sheet is 400-series ferrite stainless steel; placing welding flux between the stainless steel sheet and the aluminum pot body; secondly, placing an external heat conduction backup plate on the outer side of the stainless steel sheet, and placing an internal heat conduction backup plate on the inner side of the aluminum pot body, wherein the external heat conduction backup plate and the internal heat conduction backup plate are made of number 45 carbon steel, and the thickness of the external heat conduction backup plate is larger than that of the internal heat conduction backup plate; thirdly, pressurizing and heating the external heat conduction backup plate and the internal heat conduction backup plate through equipment, wherein pressure is larger than 7.5kgf / cm<2>, and heating temperature allows the inner side of the stainless steel sheet to melt. By the process, welding temperature rising can be accelerated, and the binding force between the stainless steel sheet and the aluminum pot body which are combined through composite welding can be increased greatly.
Description
technical field [0001] The invention relates to an aluminum pot product with a stainless steel composite pot bottom, in particular to a manufacturing process of the pot. Background technique [0002] Existing composite pans are generally formed by casting, but there are also cases of manufacturing by welding and forming. In the prior art, the process of welding aluminum plates on the outside of the stainless steel pot body is relatively mature, but the process of welding stainless steel sheets, especially 400 series ferritic stainless steel (also called stainless steel) on the outside of the bottom of the aluminum pot body is reversed. But so far no one has solved it. We searched relevant patent documents and found that, for example, the utility model patent with application number 201120406816.6 discloses the structure of welding the stainless steel sheet to the bottom of the aluminum pot, but does not disclose how to weld it. Therefore, it is impossible to know whether it...
Claims
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IPC IPC(8): A47J27/00A47J36/02
Inventor 顾斌阳恩贵曾毅
Owner DEA GENERAL AVIATION HLDG CO LTD