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A kind of charcoal/charcoal crucible and its manufacturing method

A technology for crucibles and prefabricated bodies, which is applied to crucibles, crucible furnaces, chemical instruments and methods, etc., can solve problems such as damage to connection structures, poor integrity of crucibles, and loss of performance, and achieve reasonable processes, avoid waste of raw materials, and prolong service life. Effect

Active Publication Date: 2022-04-08
XIAN CHAOMA SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the crucible is completely connected by mechanical structure, the integrity of the crucible is poor, and it is easy to be eroded during use, resulting in damage to the connection structure, which will cause the parts of the crucible to fall apart and lose their effectiveness.

Method used

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  • A kind of charcoal/charcoal crucible and its manufacturing method
  • A kind of charcoal/charcoal crucible and its manufacturing method
  • A kind of charcoal/charcoal crucible and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as figure 1 with figure 2 As shown, the first charcoal / charcoal crucible of this embodiment is composed of a crucible inner layer 1 and a crucible outer layer 3 that surrounds and covers part of the outer surface of the crucible inner layer 1. The crucible inner layer 1 is composed of a crucible bottom 2 It is assembled with 14 crucible petals 4, and the surrounding centers of the 14 crucible petals 4 are located on the axis line of the carbon / charcoal crucible, and the crucible bottom 2 and the 14 crucible petals 4 form an accommodation cavity 5, and the inside of the crucible The materials of layer 1 and outer layer 3 of the crucible are both carbon / carbon composite materials.

[0041] Such as image 3 with Figure 4 Shown, the concrete manufacturing process of first kind of charcoal / charcoal crucible of the present invention is:

[0042] Step 1. Choose a density greater than 1.3g / cm 3 The square material machine adds a long plate with a bevel on the side t...

Embodiment 2

[0053] Such as Figure 5 with Image 6 As shown, the second charcoal / charcoal crucible of the present invention is composed of a crucible inner layer 1 and a crucible outer layer 3 covering the outer surface of the crucible inner layer 1, and the crucible inner layer 1 is composed of three crucible flaps 4 assembled, 4 The surrounding center of the crucible petals 4 is located on the axis of the crucible, and the three crucible petals 4 form an accommodating cavity 5, and the materials of the crucible inner layer 1 and the crucible outer layer 3 are carbon / carbon composite materials, so The central angles corresponding to the circular arcs of the cross section of the crucible flap 4 along the horizontal direction are all 120°.

[0054] The concrete manufacturing process of second kind of charcoal / charcoal crucible of the present invention is:

[0055] Step 1. Select the petal-shaped profiling blank of carbon / carbon composite material to obtain the crucible petal 4 through ma...

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Abstract

The invention discloses a charcoal / charcoal crucible, which is composed of a crucible inner layer and a crucible outer layer covered on the outer surface of the crucible inner layer. A plurality of crucible flaps are assembled, and the inner layer of the crucible and the outer layer of the crucible are both carbon / carbon composite materials; the invention also discloses a manufacturing method of the carbon / carbon crucible. All or part of the crucible inner layer of the carbon / charcoal crucible of the present invention is a split structure, which greatly improves the utilization rate of the equipment required for crucible preparation, avoids waste of raw materials, improves the production efficiency of the crucible, and reduces the crucible manufacturing cost. The outer surface of the inner layer of the crucible is covered with a rapidly prepared outer layer of the crucible as a strengthening layer, which increases the strength and mechanical properties of the crucible's circumferential structure, improves the corrosion resistance of the crucible, and prolongs the service life of the crucible; the manufacturing method of the present invention Simple and easy to implement.

Description

technical field [0001] The invention belongs to the field of composite material preparation, and in particular relates to a carbon / carbon crucible and a manufacturing method thereof. Background technique [0002] The crucible is an important part of a chemical instrument. It is a container for melting and refining metals, silicon materials, etc., as well as solid-liquid heating and reaction, and is the basis for ensuring the smooth progress of chemical reactions. Take the crucible for single crystal Czochralski as an example. Now the line width of integrated circuits has entered the nanometer era. The larger the diameter of silicon wafers, the more integrated circuits that can be engraved, and the lower the cost of chips. With the rapid increase in demand and size, the market demand for monocrystalline silicon rods is also showing a trend of rapid growth. [0003] According to different crystal growth methods, single crystal silicon can be divided into Czochralski method (...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/83C04B35/532F27B14/10B01L3/04C30B13/14C30B15/10C30B19/06
CPCC04B35/83C04B35/532F27B14/10B01L3/04C30B15/10C30B13/14C30B19/067F27B2014/102C04B2235/5248C04B2235/612C04B2235/96
Inventor 程皓张灵玉赵松闵明康文杰党瑞萍王晶晶邢如鹏侯卫权孟凡才
Owner XIAN CHAOMA SCI TECH
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