| 摘要 |
The present invention relates to a connecting method for a bottom of a pot. Either a body (3, Fig.8) made of metal and a heating device (30, Fig.8) made of pre-cast aluminium block is provided or a body made of aluminium alloy and a heating device made of a stainless steel plate is provided. The body made of the aluminium or the heating device made of aluminium is melted by using a rotating friction and the body made of metal or the heating device made of stainless steel is softened to expand pores on a surface of the body or the heating device. When the heating device is pressed to contact the bottom end of the body, a melted aluminium alloy penetrates into the pores, thus connecting the body with the heating device. The heating device may include a channel (301, Fig.8) precast to receive an electric pipe (31, Fig.8). |
