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Melt material outlet nozzle

A technology of molten material and nozzle, which is applied in the direction of feeding machine nozzle, liquid is divided into beads and granulated, etc. It can solve the problems of poor glass body and inability to flow out of glass flow, etc.

Inactive Publication Date: 2013-02-13
OHARA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the method of producing such a glass body, the molten glass wets up and adheres to the vicinity of the tip of the nozzle, and in many cases, it is impossible to flow out a glass flow with a fixed flow rate and a fixed shape.
Moreover, the glass that has been wetted and raised remains near the tip of the nozzle for a long time and is cooled to a certain temperature by the outside air, so the glass devitrification occurs near the tip of the nozzle, resulting in a devitrified molten glass Mixed into the dripping glass drops, it is easy to cause defects caused by devitrification in the obtained glass body

Method used

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Examples

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Embodiment

[0100] Hereinafter, examples of the present invention will be described, but the scope of the present invention is not limited to the following examples.

[0101]

[0102] A nozzle for producing tiny spherical particles with a diameter of 1 mm was fabricated. A cylindrical material formed of platinum was prepared, and a through hole with a diameter of 0.8 mm was drilled in the center of the material using a tool obtained by modifying a commercially available turning tool or drill. Then, a wire rod having a diameter of 0.5 mm was produced, and the surface inside the through-hole was subjected to wire grinding processing using an abrasive of the wire rod and diamond. And, the end and the outer surface of this material are cut into a predetermined shape, and the inner surface, the outer surface, and the end surface have a centerline average roughness (Ra) of 0.2 μm by grinding using a polishing cloth or a whetstone. The melt flows out of the nozzle. Here, using standard sampl...

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Abstract

The invention provides a smelt outflow nozzle that the melt has little wet rising on the nozzle when manufactures micro spherical particle or preformed materials, and the glass that has wet rising on the front end of the nozzle is easily to completely removed. The smelt outflow nozzle (1) outflows the smelt from the front end (2) and has a flow passage (6) of the smelt, comprising an inner surface (31) facing to the flow passage (6), an outer surface (32) covering the inner surface (31) and an end face (21) connected with the inner surface (31) and the outer surface (32) at the front end (2). The mean roughness (Ra) of center line of the outer surface (32) is less than or equal to 1.6 [mu]m.

Description

technical field [0001] The present invention relates to a melt outflow nozzle which is used to form a spherical, ellipsoidal or oblate spherical molded body such as a spherical, ellipsoidal or oblate spherical molded body by flowing out molten glass or the like. The present invention particularly preferably relates to a melt outflow nozzle for shaping minute spherical particles used as a preform material for obtaining an optical element by precise pressing, or micro-bonding in a semiconductor device or the like ( Micro-soldering) used solder balls and other fine metal balls, the optical components include DVD (Digital Versatile Disc, Digital Versatile Disc), CD (Compact Disc, Optical Disc), optical disk (MO, Magneto-optical Disc) etc. Optical reading lenses, lenses for mobile phones with cameras, lenses for optical communication, lenses or prisms used in optical equipment, etc. Background technique [0002] In recent years, with the development of Micro Engineering, the ind...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J2/04C03B7/08
Inventor 工藤雄士杉山勋
Owner OHARA
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