Method for combining pot or kettle with heating device

Abstract

The invention relates to a method for combining a pot or kettle with a heating device, in particular to a method for combining the bottom of the stainless steel pot or kettle with an aluminum block and aluminum plate where an electric heating pipe or magnetic conductive metal is preformed. Mainly, the electric heating pipe or magnetic conductive metal wraps the aluminum block in a precasting mode, and then the pot or kettle which has already been heated to a set temperature and the aluminum block and aluminum plate are punched respectively at high speed and high pressure, so instant press-drawing is conducted between the bottom of the pot or kettle and the aluminum block, the aluminum block wrapped by the electric heating pipe or magnetic conductive metal can be closely combined with the bottom of the pot or kettle, speed is high, disengagement is avoided, lots of labor can be saved particularly, machining steps are simplified, and the aims of increasing the yield and saving energy can be achieved.

Description

technical field [0001] The invention relates to a combination method of a pot or pot body and a heating device. Firstly, an electric heating tube or a magnetically conductive metal is precast into an aluminum block, and then the aluminum block, pot or pot body, and an aluminum plate are preheated, and then the aluminum block is quickly stamped. The blocks are attached to the bottom of the pot or kettle body. Background technique [0002] Press, the traditional electric pot is provided with a heating device at the bottom of the middle pot, which can be heated when the power is turned on, so that the inner pot placed in the middle pot can be steamed and cooked to achieve the purpose of serving food. [0003] In the early electric cookers, because aluminum metal has better thermal conductivity, the entire medium pot is made of aluminum metal, so it only needs to fix the electric heating tube. However, because aluminum metal is soft, the thickness of the medium pot is generally ...

AI Technical Summary

Problems solved by technology

However, the existing method is to combine them with high frequency waves. However, due to the different materials, there is only surface bonding. When the electric heating tube is heated, the heat is quickly transferred to the medium pot. The two materials withstand different temperatures, and the coefficients of thermal expansion and cold contraction are also different. , so it is easy to fall off, and sometimes it is accidentally bumped, and it is easy to separate the electric heating tube from the medium pot

[0005] The inventor lacks this, and has developed a friction welding processing method, which has indeed improved the problem of the electric heating tube falling off. However, because friction welding requires a lot of manpower and more processing passes, the speed is limited and cannot cope with mass production.

[0006] There is another method of processing the bottom of the pan completely, which is to turn the pan upside down so that the bottom of the pan is facing up, then place a smaller aluminum block on it, and then stack #430 stainless steel on it, Stamping after heating, although it can be combined, it is limited to the bottom of the pan and the aluminum block should not be too large, otherwise it will be squeezed out of the double bottom during stamping and cannot be repaired, so there is a gap between the bottom of the pan and the double bottom. Prone to water seepage over time

[0007] The inventor is specialized in the research and development and manufacture of cooking utensils. He knows that the lack of the combination of the heating device of the traditional electric cooker can no longer meet the current needs, so he started to develop a combination of the heating device of the pot or pot body. This method not only saves manpower and processing times, but also makes the bonding effect more ideal and never falls off, which obviously meets the requirements of the invention patent.

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