| 摘要 |
PURPOSE:To improve the durability of a divided punch receiver for a sintering furnace by putting flexible and heat insulating sheets at both ends of the carbonaceous material of the punch receiver. CONSTITUTION:A punch receiver for a pressure sintering furnace is composed of a graphitic material 2, a carbonaceous material 3 and stainless steel 4. When the punch receiver is assembled, flexible and heat insulating sheets are put at both ends of the carbonaceous material 3. The sheets may be made of expansive graphite obtd. by treating flake graphite with an oxidizing agent and heating the treated graphite. The thickness of the sheets is regulated to about 0.05-5mm. When pressure sintering is carried out with the resulting punch receiver, eccentric load is prevented and a heat shock on the materials 2, 3 can be weakened. Accordingly, the punch receiver can be semipermanently used.
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