| 摘要 |
<p>PURPOSE:To make it possible to rapidly coat a resin composition in a proper emitting amount, by providing pleats to the piston mounted to a cylinder part. CONSTITUTION:In an injection cylinder used in a die bonding silver paste applied to a lead frame or ceramic substrate, a piston 8 having a pleat 9 comprises polyethylene, polypropylene or glass and a pleat 9 with a thickness of 0.05-0.5mm is formed to the piston 8 at a position longer by 3-40% to the diameter of the piston 8 and separated by 2-5mm from a tapered part. If the piston 8 having this pleat 9 is placed on a resin composition 3 to be mounted in a cylinder part 1 and pressed from the upper part 6 of the cylinder part 1 by N2-gas, the resin composition is emitted from a leading end nozzle in an emitting amount corresponding to a pressurizing time.</p> |
