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Quartz nozzle and preparation method thereof

A technology of quartz nozzles and quartz tubes, which is applied in stone processing equipment, glass manufacturing equipment, manufacturing tools, etc., can solve the problems of accelerated cooling, condensation blocking pipes, and low precision of nozzle holes, and achieves controllable diameter and roundness. Improve consistency and maintain stability

Pending Publication Date: 2022-04-29
NINGBO INNOVATION CENT FOR APPLIED MAGNETICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the nozzle hole size at the lower end of the quartz tube is one of the key parameters for preparing amorphous materials, but in the experimental process, the nozzle hole is obtained by manually grinding the bottom of the quartz tube on sandpaper, so the size accuracy of the nozzle hole is low; in addition , the manual grinding process varies from person to person, which will make the consistency of the quartz tube nozzle hole poor; at the same time, the bottom of the quartz tube is drawn with a certain taper and the grinding process makes the quartz wall thickness around the nozzle hole thinner, so that the metal melt is sprayed during the injection process. Accelerated cooling leads to condensation plugging, which seriously affects the preparation process of materials.

Method used

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  • Quartz nozzle and preparation method thereof
  • Quartz nozzle and preparation method thereof

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Experimental program
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Embodiment 1

[0031] like figure 1 As shown, the quartz nozzle includes a hollow quartz tube 1 with openings at both ends. The thickness H of the tube wall of the quartz tube is 1.5mm. Along the length direction of the quartz tube, the tube wall at the A end of the quartz tube 1 gradually approaches the central axis 4. The opening 2 at the end A forms a funnel-shaped structure, and the opening 3 forms a nozzle hole of the funnel-shaped structure, and the diameter of the opening 3 is 0.12 mm.

[0032] In this embodiment, the pipe wall at the end A is planarized to the outer wall of the end 5 close to the central axis 4, that is, the outer wall of the end 5 is formed into a plane by means of external mechanical extrusion or grinding.

[0033] In this embodiment, when the pipe wall at end A approaches the central axis 4, the inner wall 7 of the pipe wall "expands" to form an outer convex surface, and the tangential angle 6 of the outer convex surface is 30°, thereby increasing the diameter of ...

Embodiment 2

[0042] In this embodiment, the structure of the quartz nozzle package is basically the same as that of Embodiment 1, the difference is that the thickness H of the quartz tube wall is 1.0 mm; the diameter of the opening 3 is 0.3 mm; Convex surface, the tangential angle 6 of the outer convex surface is 90°.

[0043] In this embodiment, the preparation method of the quartz nozzle is basically the same as that of Example 1, except that the quartz tube 1 with a tube wall thickness H of 1.0 mm is used; The tube is burned and softened for drawing, and the inner wall of the quartz tube 1 is tightly attached to and covers the frustum structure of the mold. Since the inner concave arc surface can make the inner wall of the quartz tube covered with the frustum structure be convex, the outer convex surface The tangential angle 6 is 90°; and a nozzle hole with a diameter of 0.3 mm is obtained when laser drilling is performed.

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Abstract

The invention provides a quartz nozzle and a preparation method thereof. The quartz nozzle comprises a hollow quartz tube with two open ends, the thickness of the tube wall of the quartz tube is H, the tube wall of one end of the quartz tube gradually gets close to the central axis in the length direction of the quartz tube, the tube wall and the opening of the end form a funnel-shaped structure, and the thickness of the tube wall of the funnel-shaped structure is larger than H. When a melt passes through the nozzle, the risk that the material preparation is influenced by pipe blockage due to condensation caused by accelerated melt cooling due to the fact that the thickness of the pipe wall at the nozzle is reduced can be greatly reduced. A mold with a frustum structure is adopted, the outer wall face of the frustum structure is in a concave shape, the mold is embedded in a quartz tube, the quartz tube is burnt and softened, drawing is conducted, the frustum structure is completely and internally attached and wrapped, and then punching is conducted to obtain the spraying hole. The method is simple and easy to implement, high in consistency and high in reliability.

Description

technical field [0001] The invention belongs to the field of precision processing of quartz materials, and in particular relates to a quartz nozzle and a preparation method thereof. Background technique [0002] In the preparation experiment of amorphous soft magnetic alloy wire / strip and powder, the ultra-pure quartz tube can withstand the high temperature of the master alloy melt up to 1300 degrees, and does not react with the metal melt. It is the preferred material for scientific research and production equipment . [0003] The process of industrial production of quartz tubes with nozzles is simple. Generally, the quartz tubes are softened by hydrogen-oxygen flames and drawn into a certain taper at the same time. In the application, the cone tips are ground to obtain pores of a certain size. For example, the Chinese invention patent document CN109440023A discloses a high magnetic induction nitrogen-coupled iron-based amorphous nanocrystalline alloy and its preparation m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/06B22F9/08B23K26/382B24B1/00B28D1/14C03B20/00C03B23/047
CPCB22D11/0642B22D11/0611B22F9/082C03B20/00C03B23/047B28D1/14B24B1/00B23K26/382B22F2009/0892B23K2103/56
Inventor 朱方梁满其奎崔贞陈淑文刘婷婷
Owner NINGBO INNOVATION CENT FOR APPLIED MAGNETICS CO LTD
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