| 摘要 |
PURPOSE:To supply securely and stably a prescribed amt. of a metal for vapor deposition without scattering a molten metal by forming the vapor deposition metal in a vacuum deposition device into a bar shape, and supplying the same into a crucible for the molten vapor deposition metal by making use of a specific feeder. CONSTITUTION:A raw material metal for vapor deposition to be supplied into a crucible 1 for melting said metal in a vacuum deposition device is supplied in the from of a bar-like metal 3. The feeding of such metal 3 is accomplished by a method for dropping many bar-like metallic materials 3 contained in a supply part 5 onto a raw material base 4 of a raw material supply device 2 by the own weight. Such material is hooked by the pawl 8 of a chain 9 wound around two sprockets 7, 7 and is delivered so that the material is fed through a guide 11 made of a refractory material such as alumina, magnesia or the like into the crucible 1. The front end of the guide 11 used in this case is notched 13 longitudianlly and is tightened by a spring 14, etc., by which the dropping of the material 3 by gravity into the crucible is prevented. |
