Vacuum forming method of asphalt-based thermal insulation cylinder
A technology of vacuum forming and heat preservation cylinder, which is applied in the production of heat preservation materials in single crystal furnaces, can solve the problems of poor heat preservation performance, instability, and low production efficiency, and achieve the effect of improving production efficiency, product performance, and uniform stress
Inactive Publication Date: 2020-08-07
JILIN LIANKE SPECIAL GRAPHITE MATERIAL
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Problems solved by technology
The process of preparing the insulation cylinder by vacuum filtration is relatively complicated, the production efficiency is low, and the fibers of the prepared insulation cylinder are distributed in all directions, and the insulation performance is not good and unstable.
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[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0023] The purpose of the present invention is to provide a vacuum forming method for asphalt-based insulation cylinders to solve the above-mentioned problems in the prior art. The fibers are uniformly wound in the same direction, so that the radiation direction of the thermal field is perpendicular to the fiber direction of the insulation cylinder, thereby improving its thermal insulation performance.
[0024] In order to make the above objects, features and a...
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The invention discloses a vacuum forming method of an asphalt-based thermal insulation cylinder, and relates to the technical field of production of thermal insulation materials in single crystal furnaces. The vacuum forming method comprises the following steps of 1, manufacturing a mould; 2, cutting a carbon felt; 3, spraying resin; 4, spirally winding a soft felt; 5, performing vacuum forming; 6, fixing an outer mold; 7, curing; 8, carbonizing; and obtaining a thermal insulation cylinder blank machined part. According to the vacuum forming method of the asphalt-based thermal insulation cylinder, fibers are uniformly wound in the same direction, so that the thermal field radiation direction is perpendicular to the fiber direction of the thermal insulation cylinder, and the thermal insulation performance of the fibers is improved.
Description
technical field [0001] The invention relates to the field of production of thermal insulation materials in single crystal furnaces, in particular to a vacuum forming method for an asphalt-based thermal insulation cylinder. Background technique [0002] The insulation cylinder is the necessary and main insulation device in the thermal field of the monocrystalline silicon growth furnace at present. It is located outside the heating body. Its main functions include: maintaining the heat of the heater, forming a suitable temperature field, reducing heat energy loss, and reducing operating power. The method of preparing the insulation cylinder at home and abroad is the vacuum filtration molding method, that is, the chopped carbon fiber slurry is injected into the cylindrical mold, and the chopped carbon fiber carbon is deposited layer by layer through the vacuum pump at the bottom to prepare the insulation cylinder. The process of preparing the insulation cylinder by vacuum filtr...
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IPC IPC(8): B29C70/34B29C70/44
CPCB29C70/342B29C70/446
Inventor 么伟杨洁陈晓庆朱丽娟罗微王英武
Owner JILIN LIANKE SPECIAL GRAPHITE MATERIAL