One-time forming method and special mold for graphite insulation barrel
A molding method and molding die technology are applied in the field of a one-time molding method of a graphite thermal insulation barrel and the molding die field, which can solve the problems of long production cycle, high energy consumption, and high production cost, and achieve improved service life, uniform wall thickness, and high quality. consistent effect
Active Publication Date: 2014-03-12
江苏宏基高新材料股份有限公司
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Problems solved by technology
Therefore, it is self-evident that the graphite insulation barrel in the prior art has a long production cycle, high energy consumption per unit product, and high production cost.
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[0028] The present invention will be further described below in conjunction with the embodiments and accompanying drawings. The embodiments are only used to explain the present invention, and do not constitute a limitation to the protection scope of the present invention.
[0029] image 3 and Figure 4 Shown is the embodiment of graphite heat preservation barrel molding die, graphite heat preservation barrel forming mold, comprises female mold 1 and mold core 2, and described mold core 2 concentricity is arranged in described female mold 1; There is a bending edge 21, and the bending edge 21 covers the upper end of the female mold 1.
[0030] The bottom of the axial cross-sectional projection of the mold core 2 is at right angles, and the cavity between the female mold 1 and the mold core 2 matches the size of the graphite insulation barrel.
[0031] The outer edge of the bending edge 21 is provided with a limit notch 23 , and the upper end of the female mold 1 is located i...
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Abstract
The invention discloses a one-time forming method and forming mold for a graphite insulation barrel. The one-time forming method comprises the steps as follows: adding a powdery material into a special mold, then placing the special mold into an isostatic pressing forming machine for forming, then placing an obtained product into a roasting furnace for roasting, and finally loading the obtained product into a graphitization furnace for graphitization treatment. The forming mold includes a female mold and a mold core, wherein the mold core is concentrically arranged in the female mold; and the bottom of the axial section view projection of the mold core is right-angled. According to the invention, not only is the blank waste caused by secondary machining of the cylindrical graphite blank avoided, but also the production period is greatly shortened; the energy is saved; and moreover, the graphite insulation barrel is uniform in wall thickness and consistent in quality, so that the service life of the graphite insulation barrel is prolonged.
Description
technical field [0001] The invention belongs to the technical field of forming graphite heat preservation barrels, and in particular relates to a one-time forming method of graphite heat preservation barrels and a forming mold thereof. Background technique [0002] At present, the production of graphite insulation barrels for molten single crystals and metals is realized by machining cylindrical graphite blanks, that is, when making finished graphite insulation barrels, the middle part of the cylindrical graphite blanks needs to be hollowed out into a hollow cylinder. This leads to a large waste of materials during the production of graphite insulation barrels and a long production cycle. At the same time, due to the difference in the internal and external quality of the cylindrical blanks, the quality of the processed graphite insulation barrels is uneven, which can easily affect the use of graphite insulation barrels. its lifespan. In order to ensure that the graphite hea...
Claims
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IPC IPC(8): B28B3/02B28B7/00C04B35/52C04B35/622
Inventor 高晓伟伍梦飞张建抗
Owner 江苏宏基高新材料股份有限公司