| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hot water tank having improved heat insulation and warmth retaining property and durability. <P>SOLUTION: The hot water tank includes a stainless steel tank having a cylindrical body 1 and end plates 2 formed so as to close both ends of the body 1, wherein a projected bead 4 is formed by melting a stainless steel wire into the body of the stainless steel tank. Deformation of the hot water tank caused by excessive negative pressure is prevented without deviating a reinforcing part in position, without generating a gap in the tank, and without reducing a plate thickness of the body. <P>COPYRIGHT: (C)2012,JPO&INPIT |
