| 摘要 |
PURPOSE:To shorten the time required for welding because of high efficiency of thermal conduction or obtain easy welding only by heat generated at the time of forming case which is in a state of thermosoftening. CONSTITUTION:A plug made of a synthetic resin for sealing 4, with a hollow 6 or protruding part which has a wedge-like profile affixed on either or both side of its upper part, inserted by a rubber plug for preventing leakage 5 at the time of use, is inserted in upper and inner parts of an opening part 3 of a transfusion case made of a synthetic resin 2 and is heated by applying pressure inward, or a plug made of synthetic resin for sealing with a hollow or protruding part which has the same profile as above affixed on its upper part is inserted and pressurized inward in an opening part of a case made of synthetic resin for transfusion 2 in a state of thermosoftening, thus welding is made by the heat remaining at the place of an opening part. |
