Method for producing one-piece compressed hard glass fish collecting lamp bulb shell

Abstract

The invention discloses a method for producing one-piece compressed hard glass fish collecting lamp bulb shell. The method comprises the following steps of: (1) selecting the specific size of a standard bulb shell to design the scheme of forming dies in advance, wherein in die materials, graphite or high-strength heat-resisting alloy can be used as blanks; (2) designing the bulb shell dies; (3) designing the two dies which have the same size, and forming feed holes with the diameters of between 30 and 50 millimeters uniformly at the upper ends of the two dies, wherein the two dies can be opened or closed under the mechanical control; (4) blanking hard glass melts continuously from a blanking opening and melting in a hard glass electric kiln at the high temperature of 1,200 DEG C, and conveying the hard glass melts into the dies directly from the feed holes of the dies; (5) after the hard glass melts are conveyed into the dies from the feed holes of the dies, introducing compressed air from the feed holes of the dies, and blowing; and (6) opening the dies, and cooling slowly to form the fish collecting lamp bulb shell. The method has the advantages that: the lamp bulb shell is fixed in a shape, uniform in outer diameter and wall thickness, standard in length and high stability and consistency; a large number of glass materials are saved; and the cost is reduced.

Description

technical field [0001] The invention relates to the field of quartz product manufacturing, in particular to a production method of a hard glass fish-collecting light bulb shell formed by one-time pressing Background technique [0002] At present, the domestic electric light source industry has been using the traditional processing method for the production and manufacture of the shell of the fishing lamp. The shell material used is the ultraviolet filter quartz tube. The production method adopts the technical process of glass lathe flame shaping and artificial blowing. The Φ60 ∽100mm and 500∽600mm in length, the UV-filtering quartz tube is fixed on one end of the glass lathe with a fixture; then the lathe is started, and the rotating quartz tube is fired directly with an oxyhydrogen flame. When the quartz tube is close to the softening point, artificial Blow molding and sealing, and form the fish-collecting bulb shell after cooling. This traditional processing method has ma...

AI Technical Summary

Problems solved by technology

This traditional processing method has many defects and deficiencies. First, the original shape and wall thickness of the quartz tube will change under high temperature and softened state during shaping, resulting in the outer diameter, inner diameter and wall thickness of the bulb after molding. The consistency of the thickness is poor, especially the wall thickness is different, which is easy to seriously affect the internal and external pressure of the whole fish-collecting lamp and reduce the service life of the fish-collecting lamp; One-third of the pipe cannot be reused, resulting in waste