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Method for preparing special high-strength tempered glass for high-speed train

A technology for tempered glass and high-speed trains, applied in glass manufacturing equipment, glass forming, glass tempering and other directions, can solve the problems of poor electric heating performance and low strength, and achieve good impact resistance, high strength and low cost. Effect

Inactive Publication Date: 2014-02-05
JIANGSU IRON ANCHOR GLASS LTD BY SHARE LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, the windshield glass of high-speed trains is mostly produced by glass original sheet forming interlayer technology, which has good optical performance but low strength and poor electric heating performance.

Method used

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  • Method for preparing special high-strength tempered glass for high-speed train

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Cut and edge-grind ordinary flat glass, put it into the corresponding mold of the hot-bending forming furnace for hot-bending forming at 500°C;

[0029] (2) Mix 60% potassium nitrate, 5% sodium nitrate, and 35% cesium nitrate, preheat at 200°C for 1 hour, then raise it to 400°C, stir thoroughly to make the required molten salt;

[0030] (3) Put the formed glass into the molten salt tank of the exchange furnace, and perform ion exchange at 400°C for 24 hours to complete the chemical toughening;

[0031] (4) Put the chemically tempered glass into a heating furnace for heating, the heating time is 150 seconds, the furnace waiting time is 10 seconds, and the temperature in the furnace is 690°C, and then put it into a rapid cooling furnace for rapid cooling to strengthen the wind. The pressure is 650 mmAg, the cooling time is 80 seconds, and then it enters the secondary cooling furnace for cooling, and the slow cooling air pressure is 300mmAg, and finally a high-strength...

Embodiment 2

[0035] (1) Cut and edge-grind ordinary flat glass, put it into the corresponding mold of the hot bending forming furnace and perform hot bending at 600°C;

[0036] (2) Mix 50% potassium phosphate, 10% sodium phosphate, and 40% cesium sulfate, preheat at 300°C for 1 hour, then raise to 500°C, stir thoroughly to make the required molten salt;

[0037] (3) Put the formed glass into the molten salt tank of the exchange furnace, and perform ion exchange at 450°C for 12 hours to complete the chemical toughening;

[0038] (4) Put the chemically tempered glass into the heating furnace for heating, the heating time is 160 seconds, the furnace waiting time is 10 seconds, and the temperature in the furnace is 710°C, and then put it into the rapid cooling furnace for rapid cooling treatment to strengthen the wind. The pressure is 750 mmAg, the cooling time is 120 seconds, and then enters the secondary cooling furnace for slow cooling treatment, the slow cooling air pressure is 400 mmAg, a...

Embodiment 3

[0042] (1) Cut and grind the ordinary flat glass, put it into the corresponding mold of the hot bending forming furnace and perform hot bending at 700°C;

[0043] (2) Mix 60% potassium phosphate, 8% sodium phosphate, and 32% cesium sulfate, preheat at 250°C for 1 hour, then raise to 450°C, stir thoroughly to make the required molten salt;

[0044] (3) Put the formed glass into the molten salt tank of the exchange furnace, and perform ion exchange at 420°C for 20 hours to complete the chemical toughening;

[0045] (4) Put the chemically tempered glass into the heating furnace for heating, the heating time is 155 seconds, the furnace waiting time is 10 seconds, the temperature in the furnace is 700°C, and then put into the rapid cooling furnace for rapid cooling treatment, strengthen the wind The pressure is 700mmAg, the cooling time is 100 seconds, and then enters the secondary cooling furnace for cooling, the slow cooling air pressure is 350mmAg, and finally a high-strength si...

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Abstract

The invention relates to the field of tempered glass preparation, in particular relates to a method for preparing special high-strength tempered glass for a high-speed train, and provides a method for preparing special high-strength tempered glass for a high-speed train aiming at the defects of the prior art. The method is characterized in that high-strength single glass is prepared by using a method that a thermal tempering technique is taken as a main method and a chemical tempering technique is taken as an auxiliary method, and furthermore a glass conductive heating film and an anti-splashing film are added by using an interlay technique and a precision forming technique, so as to finally produce multi-layer high-speed train windproof glass with high strength and demisting and defrosting effectiveness. The high-speed train windproof glass prepared by using the method has the characteristics of high strength, good light translucency, uniform electrical heating and the like.

Description

technical field [0001] The invention relates to the field of tempered glass preparation, in particular to a method for preparing high-strength tempered glass for high-speed trains. Background technique [0002] With the increase of train speed, the performance requirements of glass as an important part of high-speed train are getting higher and higher; high-speed train glass requires better impact resistance, certain electric heating performance, good optical performance, and more importantly It must have high strength; because only high strength can guarantee the high-speed train in some specific environments (such as when driving out of the tunnel, or when running in cold winter, or when using electric defrosting, or when two trains are running at high speed. When meeting trains), the driving safety and running stability; therefore, how to produce high-strength windshield glass is an important issue for the safe operation of high-speed trains. [0003] In the existing tec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B23/023C03B27/03B61D25/00B32B17/06
CPCY02P40/57
Inventor 程晓农吴贲华张小燕杨娟王银茂姜守进
Owner JIANGSU IRON ANCHOR GLASS LTD BY SHARE LTD
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