Composite pan bottom consisting of several layers of stainless steel plate, aluminium plate and stainless iron plate. The stainless Steel Aluminum clad discs circles of the composite pot comprises a stainless steel plate layer, an aluminium plate layer and a stainless iron plate in turn. The stainless Steel Aluminum clad discs circles of the composite pan is stacked with aluminium plate and stainless iron plate, so that it has the functions of uniform heating, non-burning food and non-sticking pan.
However, in terms of high temperature resistance and dry burning resistance, the problem has not yet been completely solved. In daily life, we will encounter the situation of inadvertently drying the water in the pot, or burning food, or heating the flame too fiercely, often immediately move the pot to open. At this time, the stainless Steel Aluminum clad discs circles made pan bottom stainless steel pan, because the thermal expansion coefficient of each layer of metal plate is quite different, will appear the phenomenon of composite layer detachment. Especially in order to improve the thermal conductivity, when the aluminium plate and the copper plate are directly compounded, the formed aluminium-copper alloy has a lower melting point, which makes the bottom of the composite pot less resistant to high temperature fire, thus failing to meet the conventional dry-burning test standards, and can not meet the requirements of the actual use environment for the pot. On the other hand, if the composite plate of stainless steel and copper is used only, its material price is quite expensive, which leads to high production cost.
