| 摘要 |
PURPOSE:To obtain a heater wherein a heating surface heating and melting a joint area of a hot-melt foam by coming into contact with the same does not stick and accumulate a metallic oxide or resin and it is always kept clean and smooth. CONSTITUTION:This is a heater 30 for welding of a foam wherein heating surfaces 31, 32 heating and melting joint areas 21, 22 of hot-melt foams 11, 12 by coming into contact with the joint areas 21, 22 are constituted of either a lubricatable metallic oxide or ceramics or a cermet. |
