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Stainless steel pot with welded bottom, and its making method

A technology of stainless steel pot and manufacturing method, which is applied in the direction of manufacturing tools, welding equipment, applications, etc., can solve the problems of expensive materials, high production costs, and low melting point, and achieve saving of metal materials, good thermal conductivity, and uniform heat transfer Effect

Inactive Publication Date: 2005-11-09
广东欧亚家居有限公司
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AI Technical Summary

Problems solved by technology

In daily life, if the water in the pot is accidentally boiled dry, or the food is scorched, or the flame is too strong, the pot will be removed immediately. At this time, the stainless steel pot with composite pot bottom, Due to the large difference in the coefficient of thermal expansion of each layer of metal plates, the phenomenon of composite layer detachment will occur
Especially in the case of compounding the copper plate in order to improve the heat conduction effect, when the aluminum plate and the copper plate are directly compounded, the aluminum-copper alloy formed has a lower melting point, which makes the bottom of the composite pot less resistant to high-temperature fire, so that it cannot achieve Conventional dry-burning test standards cannot meet the requirements of the actual use environment for pots
On the other hand, if it is simply made of stainless steel and copper composite panels, the material price is quite expensive, resulting in high production costs.

Method used

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  • Stainless steel pot with welded bottom, and its making method
  • Stainless steel pot with welded bottom, and its making method

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Embodiment Construction

[0019] Such as figure 1 , figure 2 As shown, according to the size of the bottom of the stainless steel pot 2, an aluminum plate 31 of corresponding size, a stainless steel plate 32 or a stainless iron plate 32' disc, and a copper plate 33 or 33' disc are produced, wherein the stainless steel plate or the stainless iron plate should be thinner. Lay the copper plate 33 or 33' on the stainless steel plate 32 or the stainless iron plate 32', apply copper-based solder flux between the two, place it on a brazing machine, and perform brazing at a heating frequency of 300KHz to 350KHz . After the laminations obtained by brazing are trimmed, an aluminum plate 31 of a corresponding size is added. According to the order of copper plate-stainless steel plate-aluminum plate-stainless steel pot bottom (including pot body 1), the overall temperature is 400°C~550°C. Heating at a certain temperature, and then placing it on a pressure welding machine with an impact force of 1000T-2500T (to...

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Abstract

A stainless steel pot with complex bottom, which is a laminated one composed sequentially of original pot bottom, aluminium plate, stainless steel plate and copper plate, is disclosed. A technology for making its complex bottom includes such steps as braze welding of a copper plate onto a stainless steel plate, overlaying it with an aluminium plate and original pot bottom, and hot-pressure welding. Its advantages are high thermal conductivity and high resistance to high temp.

Description

Technical field [0001] The invention relates to a stainless steel pot with a composite bottom, in particular to a stainless steel pot with an aluminum-stainless steel-copper composite bottom that is pressure-welded through brazing transition and a manufacturing method thereof. Background technique [0002] In order to solve the problem of uneven heating at the bottom of the stainless steel pan, a stainless steel pan with an aluminum plate composite pan bottom has appeared. Chinese patent ZL00240125.8 "a kind of stainless steel pan with composite pan bottom" discloses a composite pan bottom made of several layers of stainless steel plates, aluminum plates and stainless iron plates. The above-mentioned composite pan bottom includes successively stacked stainless steel plate layers, aluminum plate layers, stainless iron plate layers, aluminum plate layers and stainless steel plate layers. This kind of composite pot bottom is laminated with aluminum plate and stainless iron pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47J27/00
Inventor 冯国柱彭达昌
Owner 广东欧亚家居有限公司
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