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A kind of forehearth molding and mixing process

A mixing process and forehearth technology, which is applied in the field of forehearth forming and mixing process, can solve problems such as bursting, delamination, and product streaks

Active Publication Date: 2017-01-11
安徽凤阳赛吉元无机材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] High borosilicate glass has a high melting temperature and is prone to stratification. When the molten glass flows from the melting pool to the forehearth, due to the decrease in temperature, the fluidity of the molten glass becomes poor, and stratification is more likely to occur, resulting in streaks in the product, or even burst
Adding a stirring device to the forming part of the material channel solves the problem. The application number is the invention patent of CN201220098060.8. After this structure is adopted in the present invention, compressed gas is passed into the pulse valve, and the gas becomes intermittent pulse through the pulse valve. After the pulse gas enters the air injection space, the air injection space can spray air to the inner wall of the material channel, blow off the powder attached to the inner wall of the material channel, speed up the flow of powder, and prevent the inner wall of the material channel from being blocked. However, this process leads to glass liquid Delamination is more likely to occur when the fluidity becomes poor, causing the product to streak or even burst

Method used

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  • A kind of forehearth molding and mixing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The process is carried out in four steps, first (1) preheating: heating the stirring paddle to 1000 °C, and then (2) installing material channel accessories: divided into three steps: cleaning material channel, installing accessories and inspection, among which cleaning material Clean the process with tap water twice, and install the accessories process to install the preheated stirring paddle in the material channel, and then carry out (3) feeding: it is divided into three steps: feeding, conditioning and feeding, in which the feeding process will use 10-30g The high borosilicate glass is fed into the feeder, the temperature is adjusted to 1100°C by the temperature adjustment process, 5g of additives are added by the feeding process, and then (4) molding treatment: divided into three steps: pressure adjustment, cooling and quenching, in which the pressure adjustment process adjusts the material The internal pressure of the tunnel is 1.10kpa, and the cooling process cool...

Embodiment 2

[0023] Carry out embodiment 1 repeatedly by the same steps as described, the difference is: in the step (1), the stirring paddle is heated to 1100 DEG C by preheating, in the step (2), the process of cleaning the forehearth is cleaned 3 times with tap water, and in the step ( 3) In the middle feeding process, 20g of high borosilicate glass is fed into the feeder, the temperature adjustment process adjusts the temperature to 1200°C, the feeding process adds 7g of additives, and the step (4) pressure adjustment process adjusts the internal pressure of the feeder to 1.14kpa, The cooling process cools down to 150°C at a cooling rate of 125°C / h.

Embodiment 3

[0025] Carry out embodiment 1 repeatedly by the same steps as described, the difference is: in the step (1), preheating stirrer is heated 1200 ℃, and in the step (2), the process of cleaning the forehearth is cleaned 3 times with tap water, and in the step (3) ) in the feeding process, 30g of high borosilicate glass is fed into the feeder, the temperature adjustment process adjusts the temperature to 1300°C, the feeding process adds 8g of additives, step (4) the pressure adjustment process adjusts the internal pressure of the feeder to 1.18kpa, and cools down The process cools down to 200°C at a cooling rate of 130°C / h.

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Abstract

The invention discloses a channel molding stirring technique, relating the technical field of channel molding. The technique comprises the following steps: preheating, installing channel accessories, feeding, and molding. By adding a stirring device to the channel molding position, when liquid glass flows to the channel from the melting tank, the temperature is lowered, and the flowability of the liquid glass is reduced, thereby solving the problems of stripes and even blowout in the product due to high stratification tendency of the glass. The stirring paddle is put to the inside of the channel after being heating, so that the liquid glass is uniform up and down through the rotation of the stirring paddle.

Description

technical field [0001] The invention belongs to the technical field of forehearth forming, and more specifically, the invention relates to a forehearth forming and stirring process. Background technique [0002] High borosilicate glass has a high melting temperature and is prone to stratification. When the molten glass flows from the melting pool to the forehearth, due to the decrease in temperature, the fluidity of the molten glass becomes poorer, and stratification is more likely to occur, resulting in streaks in the product, or even burst. Adding a stirring device to the forming part of the material channel solves the problem. The application number is the invention patent of CN201220098060.8. After this structure is adopted in the present invention, compressed gas is passed into the pulse valve, and the gas becomes intermittent pulse through the pulse valve. After the pulse gas enters the air injection space, the air injection space can spray air to the inner wall of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C1/00C03B19/00
Inventor 陆幼强施家沂牛虎辰苏海波卢灶光
Owner 安徽凤阳赛吉元无机材料有限公司
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