Spiral ceramic crystal selector and fabrication process of selector

A technology of spiral crystal separator and manufacturing process, which is applied in the directions of manufacturing tools, crystal growth, single crystal growth, etc. Qualified rate, easy to use, easy to manufacture effect

Active Publication Date: 2014-02-12
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of combining the wax pattern and paint, the parts are supported by the crystal selector, which can easily cause the crystal selector to break or produce cracks that are not easy to find
In addition, in the process of shell making, the wax mold needs to be rotated, and it will be subjected to a large buoyancy force when immersed in the slurry. The crystal selector cannot bear such a large force and breaks. There are many problems of exposed steel caused by the position of the device

Method used

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  • Spiral ceramic crystal selector and fabrication process of selector
  • Spiral ceramic crystal selector and fabrication process of selector
  • Spiral ceramic crystal selector and fabrication process of selector

Examples

Experimental program
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Effect test

Embodiment 1

[0023] This embodiment provides a ceramic spiral crystal selector, which is characterized in that: the ceramic spiral crystal selector has a cylindrical structure on the outside, with a spiral through hole inside, and the diameter of the outer structure of the structure is 8mm; the initial section of the internal space The dimensions are 3mm in diameter and 4mm in height; the helix section: the helix angle is 25 degrees, and the helix diameter is 2mm; the extension section: 2mm in diameter and 4mm in height.

[0024] A manufacturing process of a ceramic spiral crystal selector, characterized in that: the manufacture of the ceramic spiral crystal selector 101 also involves an inner shape production mold set, that is, a mold set, including an upper mold 102, a lower mold 103 and an outer profile Form the mold group that is, comprise left mold 104, right mold 105, upper positioning block 106, lower positioning block 107;

[0025] The manufacturing scheme of ceramic spiral crystal...

Embodiment 2

[0029] This embodiment provides a ceramic spiral crystal selector, which is characterized in that: the ceramic spiral crystal selector has a cylindrical structure on the outside, with a spiral through hole inside, and the diameter of the outer structure of the structure is 12mm; the initial section of the internal space The dimensions are 5mm in diameter and 6mm in height; the helix section: the helix angle is 45 degrees, and the helix diameter is 3mm; the extension section: 4mm in diameter and 8mm in height.

[0030] A manufacturing process of a ceramic spiral crystal selector, characterized in that: the manufacture of the ceramic spiral crystal selector 101 also involves an inner shape production mold set, that is, a mold set, including an upper mold 102, a lower mold 103 and an outer profile Form the mold group that is, comprise left mold 104, right mold 105, upper positioning block 106, lower positioning block 107;

[0031] The manufacturing scheme of ceramic spiral crysta...

Embodiment 3

[0035] This embodiment provides a ceramic spiral crystal selector, which is characterized in that: the ceramic spiral crystal selector has a cylindrical structure on the outside, with a spiral through hole inside, and the diameter of the outer structure of the structure is 15mm; the initial section of the internal space The size is 8mm in diameter and 10mm in height; helix section: helix angle 60 degrees, helix diameter 5mm; extension section: diameter 5mm, height 10mm.

[0036] A manufacturing process of a ceramic spiral crystal selector, characterized in that: the manufacture of the ceramic spiral crystal selector 101 also involves an inner shape production mold set, that is, a mold set, including an upper mold 102, a lower mold 103 and an outer profile Form the mold group that is, comprise left mold 104, right mold 105, upper positioning block 106, lower positioning block 107;

[0037] The manufacturing scheme of ceramic spiral crystal selector 101 is to first use the inner...

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Abstract

The invention relates to a ceramic spiral crystal selector. The spiral ceramic crystal selector is characterized in that the outer part of the ceramic spiral crystal selector is in a column structure, the inner part of the ceramic spiral crystal selector is provided with a spiral through hole, and the diameter of the structural external contour is 8-15mm; the diameter of an initial segment of an internal space is 3-8mm, and the height of the initial segment of the internal space is 4-10mm; a spiral lead angle of a spiral segment of the internal space is 25-60 degrees, and the spiral diameter of the spiral segment of the internal space is 2-5mm; the diameter of an extending segment of the internal space is 2-5mm, and the height of the extending segment of the internal space is 4-10mm. A fabrication process of the spiral ceramic crystal selector comprises the following steps of firstly pressing a model by utilizing an internal shape fabrication mold group including an upper mold and a lower mold, then putting the model into an external contour forming mold group including a left mold, a right mold, an upper positioning block and a lower positioning block, finishing positioning, pouring ceramic slurry into the external contour forming mold group, taking out the slurry from the external contour forming mold group after the slurry is dried, and carrying out high-temperature roasting on the dry slurry to obtain the final spiral ceramic crystal selector. The spiral ceramic crystal selector and the fabrication process of the selector have the advantages that the fabrication is convenient, the use is easy; as a steel leakage problem caused by the position of the crystal selector is thoroughly solved, the cost of wasted alloys is lowered, and the casting yield is increased.

Description

technical field [0001] The invention relates to the technical field of spiral crystal selectors, in particular to a ceramic spiral crystal selector and a manufacturing process. Background technique [0002] Currently the most commonly used spiral crystal selector for manufacturing single crystals, such as figure 1 As shown, the crystal selector is molded by casting wax, including the initial section, the crystal selection end and the extension section. In the process of combining the wax pattern and paint, the parts are supported by the crystal selector, which can easily cause the crystal selector to break or produce cracks that are not easy to find. In addition, in the process of shell making, the wax mold needs to be rotated, and it will be subjected to a large buoyancy force when immersed in the slurry. The crystal selector cannot bear such a large force and breaks. There are many problems of exposed steel caused by the location of the device. Contents of the inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B11/00B22C9/02
Inventor 杜洪强张泽海白雪峰邹建波张玲
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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