The utility model relates to a hot pressing graphite mould, in particular to a hot pressing graphite mould used for powder metallurgy. Including the pressurized column, die sleeve and mould base, which is characterized in that the outer and inner sheet is also provided with a mosaic mosaic, mosaic is located at the outer die sleeve, to mold the inner wall of the sleeve, inlaid piece located outside the inlay tablet and is close to the outer wall inlaid piece inlaid piece, the bottom height is greater than the external inlay tablet the bottom mold height, the top of the base in a step shape, and the top convex size and the size of the inner wall with outer inlay tablet into outer inlays in the inner wall of the bottom sheet is inlaid in the bulge at the top, the bottom and the outer die sleeve inlaid the bottom ends of the top of the base is located in the mold on the steps. The size of each component of the utility model is matched with each other, and the die is easy to disassemble, and different shape samples can be sintered according to requirements. The local damage only needs to be replaced by small components, thereby saving resources, reducing cost and prolonging service life, and the sintered sample has regular shape and precise size.
【技术实现步骤摘要】
一种用于粉末冶金的热压石墨模具
本技术涉及一种热压石墨模具,特别涉及一种用于粉末冶金的热压石墨模具。
技术介绍
目前,用于粉末冶金的小型石墨模具大多是由外部套筒、底座、加压柱组成,单个模具可烧结的试样形状单一,一旦模具局部损坏,整个模具随即报废,这些均造成造成了资源的浪费,成本的增加。
技术实现思路
本技术的目的是针对目前用于粉末冶金的热压石墨模具存在的缺陷,提供一种多构件组成的、可烧结不同形状试样的热压石墨模具。为实现上述目的,本技术采用以下技术方案:一种用于粉末冶金的热压石墨模具,包括上加压柱、模具套筒及模具底座,其特征在于:还设有外镶嵌片和内镶嵌片,外镶嵌片位于模具套筒内,紧贴模具套筒内壁,内镶嵌片位于外镶嵌片内且紧贴外镶嵌片内壁,内镶嵌片底端高度大于外镶嵌片底端高度,模具底座顶端呈台阶状,且顶端凸起尺寸与外镶嵌片内壁尺寸配合伸入到外镶嵌片内壁中,内镶嵌片底端置于顶端凸起上,模具套筒的底端和外镶嵌片的底端位于模具底座顶端台阶上。所述的外镶嵌片和内镶嵌片都是由两个半圆片组成。所述的上加压柱顶端与模具底座底端具有相同的形状和尺寸,与热压烧结炉内部加压柱尺寸相匹配。所述的上加压柱的下部截面为圆形、方形、三角形或其他需要的试样形状;上加压柱伸入内镶嵌片内,与内镶嵌片的型腔的形状、尺寸匹配。所述的模具外部套筒是圆柱形,并与热压炉内部腔体的尺寸相匹配。本技术相比现有技术有如下优点:本技术各构件的尺寸相互匹配,模具拆卸方便,可根据需求烧结出不同形状试样。局部损坏只需更换小构件即可,节省了资源、降低了成本、延长了使用寿命,烧结出的试样形状规则,尺寸精确。附图说明图1是装 ...
【技术保护点】
一种用于粉末冶金的热压石墨模具,包括上加压柱、模具套筒及模具底座,其特征在于:还设有外镶嵌片和内镶嵌片,外镶嵌片位于模具套筒内,紧贴模具套筒内壁,内镶嵌片位于外镶嵌片内且紧贴外镶嵌片内壁,内镶嵌片底端高度大于外镶嵌片底端高度,模具底座顶端呈台阶状,且顶端凸起尺寸与外镶嵌片内壁尺寸配合伸入到外镶嵌片内壁中,内镶嵌片底端置于顶端凸起上,模具套筒的底端和外镶嵌片的底端位于模具底座顶端台阶上。
【技术特征摘要】
1.一种用于粉末冶金的热压石墨模具,包括上加压柱、模具套筒及模具底座,其特征在于:还设有外镶嵌片和内镶嵌片,外镶嵌片位于模具套筒内,紧贴模具套筒内壁,内镶嵌片位于外镶嵌片内且紧贴外镶嵌片内壁,内镶嵌片底端高度大于外镶嵌片底端高度,模具底座顶端呈台阶状,且顶端凸起尺寸与外镶嵌片内壁尺寸配合伸入到外镶嵌片内壁中,内镶嵌片底端置于顶端凸起上,模具套筒的底端和外镶嵌片的底端位于模具底座顶端台阶上。2.如权利要求1所述的一种用于粉末冶金的热压石墨模具,其特征在于:所述的外镶嵌片和内镶嵌片都是...
【专利技术属性】
技术研发人员:程晓农,高帅,陈敏,郭丽萍,杨娟,
申请(专利权)人:江苏时代华宜电子科技有限公司,江苏大学,
类型:新型
国别省市:江苏,32
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