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Glass ceramic and preparation method thereof

A technology of vitreous porcelain and feeding channel, which is applied in the field of vitreous porcelain and its preparation, can solve the problems of large market and unavailable statistics, and achieve the effect of expanding production, not easy to stick dirt, and not easy to scratch

Inactive Publication Date: 2011-10-12
JINGDEZHEN COKING IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The demand of the market (from the needs of families, hotels, and guesthouses) is so large that it cannot be counted

Method used

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  • Glass ceramic and preparation method thereof
  • Glass ceramic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of vitreous porcelain, this vitreous porcelain is made of quartz sand 85kg, lithium feldspar 20kg, feldspar 44kg, sodium carbonate 33kg, barium carbonate 5kg, sodium nitrate 5kg, fluorite powder 10kg, borax 8.2kg, sodium fluorosilicate 18kg, 14kg of calcite and 0.6kg of clarifying agent are raw materials, and the standards of each raw material are as follows:

[0025] name

composition%

Graininess

Appearance Quality

color

Moisture

Special inspection items

stone

Britain

sand

SiO 2 =98.9

(+0.5, -0.3)

al 2 o 3 =0.8

(+0.3, -0.35)

Fe 2 o 3 ≤0.05

+20mesh≤

0.1

+100 mesh ≥

80

-150 mesh≤7

No ultra-fine knots

Solid debris

(mud and

stone, etc.)

White

or micro

yellow

≤8

SiO 2 , Al 2 o 3 ,

K 2 O, CaO,

MgO every six months

at least occasionally

1 test

[0026] lithi...

Embodiment 2

[0098]A kind of vitreous porcelain, the vitreous porcelain is made of 75 parts by weight of quartz sand, 10 parts by weight of lithium feldspar, 30 parts by weight of feldspar, 25 parts by weight of sodium carbonate, 2 parts by weight of sodium nitrate, 2 parts by weight of barium carbonate, fluorite powder 5 parts by weight, 5 parts by weight of borax, 10 parts by weight of sodium fluorosilicate and 10 parts by weight of calcite are used as raw materials. After mixing the raw materials, they are sent into a glass furnace and melted into molten glass at 1400 ° C. The molten glass is passed through the feed The feeding channel is divided into six parts: mixing zone, rear zone A, rear zone B, middle zone, adjustment zone and material pan zone. There is a heater in the feeding channel and a The cooler can adjust the temperature of the feeder channel according to the temperature of the product and the feeder channel. The feeder includes an equalizing part, a punching part, a sheari...

Embodiment 3

[0100] A kind of vitreous porcelain, the vitreous porcelain is made of 100 parts by weight of quartz sand, 30 parts by weight of lithium feldspar, 60 parts by weight of feldspar, 45 parts by weight of sodium carbonate, 8 parts by weight of sodium nitrate, 6 parts by weight of barium carbonate, fluorite powder 15 parts by weight, 10 parts by weight of borax, 30 parts by weight of sodium fluorosilicate and 20 parts by weight of calcite are used as raw materials. After mixing the raw materials, they are sent into a glass furnace, and melted into molten glass at 1600 ° C. The molten glass is passed through the feeding The feeding channel is divided into six parts: mixing zone, rear zone A, rear zone B, middle zone, adjustment zone and material pan zone. There is a heater in the feeding channel and a The cooler can adjust the temperature of the feeder channel according to the temperature of the product and the feeder channel. The feeder includes an equalizing part, a punching part, ...

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Abstract

The invention relates to a glass ceramic and a preparation method thereof, comprising the following raw materials by weight parts: 75-100 weight parts of quartz sands, 10-30 weight parts of lithium feldspar, 30-60 weight parts of feldspar, 25-45 weight parts of sodium carbonate, 2-8 weight parts of sodium nitrate, 2-6 weight parts of barium carbonate, 5-15 weight parts of fluorite powders, 5-10 weight parts of borax, 10-30 weight parts of sodium fluosilicate and 10-20 weight parts of calcite; the method comprises the following steps of: mixing the raw materials and sending the mixture in a glass furnace; melting the mixture as glass melt at the temperature of 1400-1600 DEG C; sending the glass melt into a material supply machine by a material supply passage; sending the glass melt into a forming machine for forming by the material supply machine; sending the formed product into an annealing furnace for annealing; subsequently inspecting the quality of the annealed product; returning the unqualified product to the raw material; and conducting the operations of applique, enamel firing and steeling to the qualified product so as to prepare the finished products. Compared with the prior art, the method has the advantages of low expansion heat-resistance performance, high hardness, being not easy to be scraped or cracked, environmental protection and the like.

Description

technical field [0001] The invention relates to a vitreous porcelain and a preparation method thereof. Background technique [0002] Tempered vitreous porcelain is based on natural quartzite and high-quality chemical raw materials. After high-temperature melting, cooling, and solidification, it forms an amorphous inorganic substance. Because there are a large number of microcrystalline opaque crystals in it, the glass undergoes light scattering and becomes various opacities. Or translucent glass, the glass contains a large number of polymer dispersed particles, these amorphous particles have a different refractive index from the main glass, and after light is irradiated, they scatter and appear milky white, that is, porcelain white. Due to the above advantages, the current production of products has achieved unprecedented development. In the production of such products, there is currently only one factory in China that produces opal glass production lines, and there are no v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C10/00
Inventor 盛旺喜朱庆来牛文华欧阳云霄
Owner JINGDEZHEN COKING IND GRP CO LTD
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