CN106145673A

CN106145673A - A kind of low-expansion coefficient cranberry glass and preparation method thereof

Info

Publication number: CN106145673A
Application number: CN201610652528.6A
Authority: CN
Inventors: 欧小宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-10
Filing date: 2016-08-10
Publication date: 2016-11-23

Abstract

The invention discloses a kind of low-expansion coefficient cranberry glass and preparation method thereof, the percentage by weight of low-expansion coefficient cranberry glass consists of: SiO2:58 61%, Al2O3:5 8%, B2O3:13 16%, MgO:5 8%, K2O:0.5 1.5%, Li2O:0.5 1.5%, CeO2:1 3%, TiO2:1 4%, ZnO:2 4%, BaO:0.5 2.5%, Cu2O:1 2%；Preparation process includes: raw material pulverizing processes, dispensing, mixing, and preheating is melted, cooling, compressing, annealing, fine grinding, and inspection is dried, packaging, warehouse-in.The raw material of the present invention is through pulverization process, and fineness is high, and preparation method, through preheating, improves coloration efficiency, and the glass of preparation is low without striped, color even, the coefficient of expansion.

Description

A kind of low-expansion coefficient cranberry glass and preparation method thereof

Technical field

The present invention relates to glass making techniques field, be specifically related to a kind of low-expansion coefficient cranberry glass and preparation thereof Method.

Background technology

Object has breathing phenomenon owing to temperature changes.Along with temperature raises, in glass, the warm-up movement amplitude of particle increases, Particle spacing becomes big, and outward manifestation is for expanding.But the increase of particle spacing, it is necessary to overcome the active force between particle, this work Firmly for oxide glass, it is simply that the bonding force 2z/r2 between various cationes and oxonium ion, the biggest glass swelling of bonding force is just The most difficult, thermal coefficient of expansion is the least；Otherwise, the thermal coefficient of expansion of glass is the biggest；The key of Si-O key is strong relatively big, so quartz glass There is the least thermal coefficient of expansion.

Red copper oxide is cupprous oxide, and cerise pulverulent solids is practically insoluble in water, in an acidic solution discrimination Turn to cupric and copper simple substance, humid air is gradually oxidized to cupric oxide, can be used for manufacturing red glass.

At present, SiO2-B2O3-Al2O3-Na2O system is low thermal coefficient of expansion, the master of light production employing Want mode, but owing to SiO2 and Al2O3 belongs to infusibility composition, the coefficient of expansion to be made is low, and alkali metal content is necessary for the lowest, causes The high temperature viscosity of glass is the biggest, it is difficult to produces the quality index such as bubble, striped and reaches the glass of standard.

Summary of the invention

The present invention is for overcoming deficiency of the prior art, it is provided that a kind of low-expansion coefficient blue transparent glass and preparation side thereof Method, is achieved through the following technical solutions.

A kind of low-expansion coefficient cranberry glass, its percentage by weight consists of: SiO2:58-61%, Al2O3:5- 8%, B2O3:13-16%, MgO:5-8%, K2O:0.5-1.5%, Li2O:0.5-1.5%, CeO2:1-3%, TiO2:1- 4%, ZnO:2-4%, BaO:0.5-2.5%, Cu2O:1-2%.

Further, in described low-expansion coefficient cranberry glass, the weight percent content sum of B2O3 Yu Al2O3 More than 20%.

Further, in described low-expansion coefficient cranberry glass, the weight percent content sum of K2O with Li2O is little In 2.5%.

The preparation method of a kind of low-expansion coefficient cranberry glass, described preparation method is carried out in the steps below: (1) Each raw material of low-expansion coefficient cranberry glass is carried out pulverization process；(2) according to low-expansion coefficient cranberry glass Formula carries out dispensing；(2) use V-type batch mixer that dispensing is mixed；(3) batch is put into preheater to preheat, in advance Hot temperature is 460-540 DEG C；(4) after preheating, batch is melted 21-23 hour at 1540～1640 DEG C, obtains high temp glass liquid； (6) high temp glass liquid is cooled to 1320～1360 DEG C；(7) die apparatus is used to be made by the high temp glass hydraulic pressure after cooling Type, forming temperature is 1240～1270 DEG C；(8) formed glass is put into annealing furnace to make annealing treatment, annealing temperature be 410～ 510 DEG C, the time is 24-27 minute；(9) fine grinding；(10) inspection；(11) dry；(12) packaging；(13) warehouse-in.

Further, in the step (2) of described preparation method, during dispensing raw material order of addition be SiO2, Al2O3, B2O3, BaO、MgO、ZnO、K2O、Li2O、CeO2、TiO2、Cu2O。

The invention have the benefit that raw material through preheating, improves coloring through pulverization process, fineness height, preparation method Efficiency, the glass of preparation is low without striped, color even, the coefficient of expansion.

Detailed description of the invention

Embodiment 1

A kind of low-expansion coefficient cranberry glass, its percentage by weight consists of: SiO2:58%, Al2O3:8%, B2O3:13%, MgO:8%, K2O:1.5%, Li2O:0.5%, CeO2:3%, TiO2:4%, ZnO:2.5%, BaO:0.5%, Cu2O:1%.

The preparation method of a kind of low-expansion coefficient cranberry glass, is carried out in the steps below: (1) is red to low-expansion coefficient Each raw material of color clear glass carries out pulverization process；(2) carry out dispensing according to the formula of low-expansion coefficient cranberry glass, join During material, raw material order of addition is SiO2, Al2O3, B2O3, BaO, MgO, ZnO, K2O, Li2O, CeO2, TiO2, Cu2O；(2) use Dispensing is mixed by V-type batch mixer；(3) batch being put into preheater to preheat, preheating temperature is 460 DEG C；(4) will be pre- After heat, batch melts 23 hours at 1540 DEG C, obtains high temp glass liquid；(6) high temp glass liquid is cooled to 1320 DEG C；(7) use Die apparatus is by compressing for the high temp glass liquid after cooling, and forming temperature is 1240 DEG C；(8) formed glass is put into annealing furnace Making annealing treatment, annealing temperature is 410 DEG C, and the time is 27 minutes；(9) fine grinding；(10) inspection；(11) dry；(12) packaging； (13) warehouse-in.

Embodiment 2

A kind of low-expansion coefficient cranberry glass, its percentage by weight consists of: SiO2:61%, Al2O3:5%, B2O3:16%, MgO:5%, K2O:0.8%, Li2O:1.2%, CeO2:2.5%, TiO2:3.5%, ZnO:2%, BaO: 1.5%, Cu2O:1.5%.

The preparation method of a kind of low-expansion coefficient cranberry glass, is carried out in the steps below: (1) is red to low-expansion coefficient Each raw material of color clear glass carries out pulverization process；(2) carry out dispensing according to the formula of low-expansion coefficient cranberry glass, join During material, raw material order of addition is SiO2, Al2O3, B2O3, BaO, MgO, ZnO, K2O, Li2O, CeO2, TiO2, Cu2O；(2) use Dispensing is mixed by V-type batch mixer；(3) batch being put into preheater to preheat, preheating temperature is 490 DEG C；(4) will be pre- After heat, batch melts 22 hours at 1600 DEG C, obtains high temp glass liquid；(6) high temp glass liquid is cooled to 1330 DEG C；(7) use Die apparatus is by compressing for the high temp glass liquid after cooling, and forming temperature is 1250 DEG C；(8) formed glass is put into annealing furnace Making annealing treatment, annealing temperature is 470 DEG C, and the time is 25 minutes；(9) fine grinding；(10) inspection；(11) dry；(12) packaging； (13) warehouse-in.

Embodiment 3

A kind of low-expansion coefficient cranberry glass, its percentage by weight consists of: SiO2:59%, Al2O3:7%, B2O3:15%, MgO:7%, K2O:0.5%, Li2O:1%, CeO2:1%, TiO2:1%, ZnO:4%, BaO:2.5%, Cu2O:2%.

The preparation method of a kind of low-expansion coefficient cranberry glass, is carried out in the steps below: (1) is red to low-expansion coefficient Each raw material of color clear glass carries out pulverization process；(2) carry out dispensing according to the formula of low-expansion coefficient cranberry glass, join During material, raw material order of addition is SiO2, Al2O3, B2O3, BaO, MgO, ZnO, K2O, Li2O, CeO2, TiO2, Cu2O；(2) use Dispensing is mixed by V-type batch mixer；(3) batch being put into preheater to preheat, preheating temperature is 540 DEG C；(4) will be pre- After heat, batch melts 21 hours at 1640 DEG C, obtains high temp glass liquid；(6) high temp glass liquid is cooled to 1360 DEG C；(7) use Die apparatus is by compressing for the high temp glass liquid after cooling, and forming temperature is 1270 DEG C；(8) formed glass is put into annealing furnace Making annealing treatment, annealing temperature is 510 DEG C, and the time is 24 minutes；(9) fine grinding；(10) inspection；(11) dry；(12) packaging； (13) warehouse-in.

Although technical scheme is described in detail by above-described embodiment, but the technical side of the present invention Case is not limited to above example, in the case of without departing from the thought of the present invention and objective, to technical scheme institute Any change done falls within claims of the present invention limited range.

Claims

A 1. low-expansion coefficient cranberry glass, it is characterised in that its percentage by weight consists of: SiO2:58-61%, Al2O3:5-8%, B2O3:13-16%, MgO:5-8%, K2O:0.5-1.5%, Li2O:0.5-1.5%, CeO2:1-3%, TiO2:1-4%, ZnO:2-4%, BaO:0.5-2.5%, Cu2O:1-2%.
2. a kind of low-expansion coefficient cranberry glass as claimed in claim 1, it is characterised in that: described B2O3 and Al2O3 Weight percent content sum more than 20%.
3. according to a kind of low-expansion coefficient cranberry glass as described in claim 1 or 2, it is characterised in that: described K2O with The weight percent content sum of Li2O is less than 2.5%.
4. the preparation method of a low-expansion coefficient cranberry glass, it is characterised in that: described preparation method presses following step Suddenly carry out: (1) carries out pulverization process to each raw material of low-expansion coefficient cranberry glass；(2) red according to low-expansion coefficient The formula of clear glass carries out dispensing；(2) use V-type batch mixer that dispensing is mixed；(3) batch is put into preheater to enter Row preheating, preheating temperature is 460-540 DEG C；(4) after preheating, batch is melted 21-23 hour at 1540～1640 DEG C, obtains high Temperature vitreous humour；(6) high temp glass liquid is cooled to 1320～1360 DEG C；(7) use die apparatus by the high temp glass after cooling Liquid is compressing, and forming temperature is 1240～1270 DEG C；(8) formed glass is put into annealing furnace to make annealing treatment, annealing temperature Degree is 410～510 DEG C, and the time is 24-27 minute；(9) fine grinding；(10) inspection；(11) dry；(12) packaging；(13) warehouse-in.
The preparation method of a kind of low-expansion coefficient cranberry glass the most as claimed in claim 4, it is characterised in that: described system In the step (2) of Preparation Method, during dispensing raw material order of addition be SiO2, Al2O3, B2O3, BaO, MgO, ZnO, K2O, Li2O, CeO2、TiO2、Cu2O。