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Method for preparing carbon/carbon split type structure crucible support at low cost

A split-type, low-cost technology, applied to chemical instruments and methods, supporting appliances, laboratory appliances, etc., can solve the problems of long preparation period, poor mechanical properties of crucible holders, high cost of raw materials, etc., and achieve short preparation period and guarantee Uniformity and consistency, cost-effective results

Inactive Publication Date: 2022-02-18
上海康碳复合材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation cycle is long, the cost of raw materials is high, and the mechanical properties of the crucible prepared by the pure vapor deposition method are poor, and the fracture toughness shows brittle or pseudoplastic fracture.

Method used

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  • Method for preparing carbon/carbon split type structure crucible support at low cost
  • Method for preparing carbon/carbon split type structure crucible support at low cost
  • Method for preparing carbon/carbon split type structure crucible support at low cost

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A low-cost method for preparing a carbon / carbon split structure crucible, comprising the following steps:

[0026] 1. Prepare the crucible holder prefabricated body, open a circular hole in the center of the crucible holder prefabricated body, the diameter of the hole is 30mm, such as figure 1 shown;

[0027] 2. Put the crucible holder preform B according to figure 2 The crucible holder and the crucible holder are supported by carbon / carbon tooling A, so that the gap between the crucible holders is kept at a distance of 10mm. The graphite tube C is inserted from the bottom of the crucible holder to meet the multi-layer independent gas supply in terms of height. The hole between the gas outlet of the graphite tube C and the crucible holder should be blocked. The plugging material is soft felt D, and the diameter of the graphite tube is 10mm. Adjust the quantity of intake graphite and the outlet position of the intake graphite tube according to the number of crucible s...

Embodiment 2

[0031] A low-cost method for preparing a carbon / carbon split structure crucible, comprising the following steps:

[0032] 1. Prepare the crucible holder prefabricated body, open a circular hole in the center of the crucible holder prefabricated body, and the diameter of the hole is 100mm;

[0033] 2. Put the crucible holder preform B according to figure 2 The crucible holder and the crucible holder are supported by carbon / carbon tooling A, so that the gap between the crucible holders is kept at a distance of 30mm. The graphite tube C is inserted from the bottom of the crucible holder to meet the multi-layer independent gas supply in terms of height. The hole between the gas outlet of the graphite tube C and the crucible holder should be blocked. The plugging material is soft felt D, and the diameter of the graphite tube is 25mm. Adjust the quantity of intake graphite and the outlet position of the intake graphite tube according to the number of crucible support prefabricated...

Embodiment 3

[0037] A low-cost method for preparing a carbon / carbon split structure crucible, comprising the following steps:

[0038] 1. Prepare the crucible holder prefabricated body, open a circular hole in the center of the crucible holder prefabricated body, and the diameter of the hole is 80mm;

[0039] 2. Put the crucible holder preform B according to figure 2 The crucible holder and the crucible holder are supported by carbon / carbon tooling A, so that the gap between the crucible holders is kept at a distance of 25mm. The graphite tube C is inserted from the bottom of the crucible holder to meet the multi-layer independent gas supply in terms of height. The hole between the gas outlet of the graphite tube C and the crucible holder should be blocked. The plugging material is soft felt D, and the diameter of the graphite tube is 20mm. Adjust the quantity of intake graphite and the outlet position of the intake graphite tube according to the number of crucible support prefabricated ...

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Abstract

The invention discloses a method for preparing a carbon / carbon split type structure crucible support at a low cost. The method comprises a carbon / carbon tool, a plurality of protruding grooves are uniformly formed in the carbon / carbon tool from top to bottom, and crucible supports are vertically arranged in the protruding grooves in a multi-layer manner. Through a scheme that a bore is formed in the core part of a crucible support and gas is fed to the multiple layers independently, a high-strength and high-density crucible support can be prepared within a short time, and the preparation method is low in cost and suitable for mass production.

Description

technical field [0001] The invention relates to a low-cost method for preparing a carbon / carbon split structure crucible support. Background technique [0002] The appearance of carbon / carbon crucible holder has greatly solved the problem that the service life of graphite crucible holder is not up to standard. However, it is an indisputable fact that its preparation cost is high. Furnace deposition is a popular solution, but it needs multiple cycles of furnace, and machining needs 1-2 times in the middle to be successfully prepared. In addition, the crucible holder is prepared by molding, impregnation and carbonization, and at the same time, its mechanical properties are assisted by vapor deposition. [0003] The patent "A Method for Making a Molded and Acupunctured Carbon-Carbon Bowl Holder" (CN 112358232 A) discloses a method for making a molded and needle-punched carbon-carbon pot holder. The basic steps are as follows: (1) Prepare laminated 2.5D needle-punched Prefabri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/52C04B35/622C04B35/78B01L9/00
CPCC04B35/78C04B35/522C04B35/622B01L9/00C04B2235/6567
Inventor 邵忠李国强于守洪
Owner 上海康碳复合材料科技有限公司