CN201433161Y

CN201433161Y - Glass forming plug

Info

Publication number: CN201433161Y
Application number: CN2009203058865U
Authority: CN
Inventors: 项中科; 袁俊鸿
Original assignee: Chengdu Guangming Optoelectronics Co Ltd
Current assignee: CDGM Glass Co Ltd; Chengdu Guangming Optoelectronics Co Ltd
Priority date: 2009-07-09
Filing date: 2009-07-09
Publication date: 2010-03-31
Anticipated expiration: 2019-07-09

Abstract

The utility model provides a forming plug capable of making the amount of processing stripes of optical glass with the viscosity lower than 10dpas less than 3 percent. The glass forming plug comprisesa main body and a working surface, wherein the working surface is a spherical surface consisting of an upper line, a lower line, a left line and a right line; and the radius/width of the working surface is between 0.6 and 0.85. The shape of the working surface of the forming plug is changed, so the heat dissipation of glass metal is more quick, the amount of processing the glass stripes is less than 3 percent, even most of the glass stripes are not required to be processed, and the forming plug can be widely applied to forming high-end dense flint, lanthanides and fluorophosphates optical glass.

Description

The glass ware forming plug

Technical field

The utility model relates to a kind of glass ware forming plug, particularly a kind ofly produces the used moulding plug of opticglass that viscosity is lower than 10dpas.

Background technology

The moulding plug is as the part of optical glass strip material forming mould, and major function is to allow high temp glass liquid move by certain flow direction on the surface within it, by its heat radiation, to the estriate glass of moulding bed die formation solidified.The working face of at present common moulding plug is the indent cylindrical surface that cast iron or xantal material are made, and its gradient α is certain, and the moulding plug gradient α that adopts is 65 ° usually.Along with opticglass constantly develops, the opticglass market requirement that viscosity is lower than 10dpas is bigger, but low-viscosity opticglass is little because of viscosity in moulding process, mold temperature is high, if adopt traditional moulding plug, can be uneven because of plug heat radiation, glass forms the dead angle easily in plug flows out to the process of moulding bed die, limit mould, produce stripes problem, the glass cord amount of finish is generally at 5-30%, the production cost height.

The utility model content

Technical problem to be solved in the utility model provides a kind of viscosity that can make and is lower than 10dpas opticglass striped amount of finish less than 3% moulding plug.

The technical scheme that the utility model technical solution problem is adopted is: the glass ware forming plug, comprise main body and a working face, described working face constitutes a sphere by last lines, following lines, left lines and four lines of right lines, and half warp/width of described working face is 0.6-0.85.

The beneficial effects of the utility model are: the utility model is by the shape of the working face of change moulding plug, make the glass metal heat radiation faster, resulting glass cord amount of finish is less than 3%, even most glass cords exempt from processing, can be widely used in the moulding of high-end dense flint class, group of the lanthanides and fluorophosphate optical glass.

Description of drawings

Fig. 1 is the stereographic map of moulding plug of the present utility model.

Fig. 2 is the stereographic map of another kind of moulding plug of the present utility model.

Fig. 3 is the glass ware forming synoptic diagram.

Embodiment

Opticglass moulding plug is the key part that high temp glass liquid is converted into the definite shape curing glass, if its unreasonable structure can cause the heat radiation of low-viscosity glass uneven, thereby produce striped.

As shown in Figure 1 and Figure 2, moulding plug of the present utility model comprises main body 6 and a working face 1, described working face 1 constitutes a sphere by last lines 2, following lines 3, left lines 4 and 5 four lines of right lines, half warp/width of described working face 1 is 0.6-0.85, described half through being half warp of described sphere, described width is the width of plug, i.e. the width that forms between two limit moulds 10 among Fig. 3; Described working face 1 is 15-60 ° with the gradient α of the lower plane of main body 6; Left side lines 4 and right lines 5 can be straight lines, as shown in Figure 1, also can be curves, as shown in Figure 2.

The main body 6 of glass ware forming plug of the present utility model is made by cast iron, xantal or graphite.

The utility model is by changing the radiating surface that gradient α increases glass metal; The size that limits half warp/width can change the flow direction of glass, thereby increases the contact surface of glass metal and moulding plug, reaches the purpose of better heat radiation.

As shown in Figure 4, it is the glass ware forming synoptic diagram, glass precursor solution flows out through leaking material pipe 7, contact with the working face 1 of moulding plug main body 6, uncured glass metal flows forward along bed die 11 and Bian Mo 10, and by traction calculon 8 and transporting reticulation belt by draw hook 9 to front haulage, forming solidified does not have the rare viscosity opticglass of striped.

Claims

1. glass ware forming plug, comprise a main body (6) and a working face (1), it is characterized in that: described working face (1) constitutes a sphere by last lines (2), following lines (3), left lines (4) and (5) four lines of right lines, and half warp/width of described working face (1) is 0.6-0.85.

2. glass ware forming plug as claimed in claim 1 is characterized in that: described working face (1) is 15-60 ° with the gradient α of the lower plane of main body (6).

3. glass ware forming plug as claimed in claim 1 or 2 is characterized in that: described left lines (4) and right lines (5) are straight line or curve.

4. glass ware forming plug as claimed in claim 1 or 2 is characterized in that: described main body (6) is made by cast iron, xantal or graphite.