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Lead-free high-transparency hard glass bowl and preparation method thereof

A high-transparency, hard glass technology, applied in glass manufacturing equipment, glass molding, manufacturing tools, etc., can solve the problems of lead being harmful to the human body, lead poisoning, etc., achieve good hardness and gloss, simple preparation method, and improve The effect of thermal stability

Active Publication Date: 2018-06-29
安徽晶晶玻璃制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, some glass manufacturers add lead to the glass components in order to increase the purity and whiteness of glassware. The higher the lead content, the whiter and more transparent the glass, but lead is harmful to the human body. If you use leaded glassware for a long time , will cause harm to multiple systems such as human nerves, hematopoiesis, digestion, kidneys, cardiovascular and endocrine, and if the content is too high, it will cause lead poisoning

Method used

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  • Lead-free high-transparency hard glass bowl and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0030] A lead-free high-transparency hard glass bowl, comprising the following raw materials in parts by weight:

[0031] 60 parts of silicon oxide, 15 parts of aluminum oxide, 10 parts of sodium oxide, 5 parts of magnesium oxide, 4 parts of zirconium oxide, 0.7 part of titanium oxide, 0.5 part of antimony oxide, 0.12 part of yttrium oxide, 0.08 part of bismuth oxide, 8 parts of barium sulfate, 0.5 part of sodium nitrate.

[0032] The preparation method of the above-mentioned lead-free high-transparency hard glass bowl comprises the following steps:

[0033] (1) The raw materials are uniformly mixed, then ball milled and pulverized, passed through a 200-mesh sieve, and iron removed. The temperature is raised to 1350°C at a rate of 55°C / min. bowls, cooled naturally to room temperature in the air;

[0034] (2) The glass bowl made is sent into the annealing kiln, and the temperature is raised to 300°C once, the heating rate is 25°C / min for the first time, the temperature is kep...

Embodiment 2

[0036] A lead-free high-transparency hard glass bowl, comprising the following raw materials in parts by weight:

[0037] 55 parts of silicon oxide, 12 parts of aluminum oxide, 8 parts of sodium oxide, 3 parts of magnesium oxide, 3 parts of zirconium oxide, 0.5 part of titanium oxide, 0.3 part of antimony oxide, 0.1 part of yttrium oxide, 0.05 part of bismuth oxide, 5 parts of barium sulfate, 0.3 part of sodium nitrate.

[0038] The preparation method of the above-mentioned lead-free high-transparency hard glass bowl comprises the following steps:

[0039] (1) The raw materials are uniformly mixed, then ball-milled and pulverized, passed through a 200-mesh sieve, and iron removed, heated to 1360°C at a rate of 60°C / min, stirred for 35 minutes, and then poured into the molding machine to make glass of different specifications. bowls, cooled naturally to room temperature in the air;

[0040] (2) The prepared glass bowl is sent to the annealing kiln, and the temperature is rais...

Embodiment 3

[0042] A lead-free high-transparency hard glass bowl, comprising the following raw materials in parts by weight:

[0043] 65 parts of silicon oxide, 18 parts of aluminum oxide, 12 parts of sodium oxide, 6 parts of magnesium oxide, 6 parts of zirconium oxide, 1.2 parts of titanium oxide, 0.7 parts of antimony oxide, 0.15 parts of yttrium oxide, 0.1 part of bismuth oxide, 10 parts of barium sulfate, 0.7 part of sodium nitrate.

[0044] The preparation method of the above-mentioned lead-free high-transparency hard glass bowl comprises the following steps:

[0045] (1) The raw materials are uniformly mixed and then ball-milled and pulverized, passed through a 200-mesh sieve, and iron removed. The temperature is raised to 1320°C at a rate of 60°C / min. bowls, cooled naturally to room temperature in the air;

[0046] (2) The glass bowl made is sent into the annealing kiln, and the temperature is raised to 320°C once, the heating rate is 30°C / min for the first time, the temperature ...

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Abstract

The invention provides a lead-free high-transparency hard glass bowl and a preparation method thereof, and relates to the technical field of glass. The lead-free high-transparency hard glass bowl is prepared from the following raw materials in parts by weight: 50-70 parts of silicon oxide, 10-20 parts of aluminum oxide, 6-16 parts of sodium oxide, 1-8 parts of magnesium oxide, 1-8 parts of zirconium oxide, 0.2-1.5 parts of titanium oxide, 0.1-0.8 parts of antimony oxide, 0.08-0.2 parts of yttrium oxide, 0.02-0.15 parts of bismuth oxide, 3-15 parts of barium sulfate and 1-5 parts of sodium nitrate. The obtained glass bowl does not contain lead element and has high strength, hardness and transparency.

Description

technical field [0001] The invention relates to the technical field of glass, in particular to a lead-free high-transparency hard glass bowl and a preparation method thereof. Background technique [0002] Glass is an amorphous inorganic non-metallic material, generally made of a variety of inorganic minerals (such as quartz sand, borax, boric acid, barite, barium carbonate, limestone, feldspar, soda ash, etc.) of. Its main components are silica and other oxides. For hundreds of years, people have believed that glass is green and cannot be changed. It was later found that the green color came from a small amount of iron in the raw material, and the compound of divalent iron made the glass appear green. After adding manganese dioxide, the original ferrous iron turns into ferric iron, which is yellow, while the tetravalent manganese is reduced to trivalent manganese, which is purple. Optically, yellow and violet can complement each other to a certain extent, and when they a...

Claims

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Application Information

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IPC IPC(8): C03C6/00C03B19/02C03B25/00
Inventor 倪明发许德章李怀正田民选
Owner 安徽晶晶玻璃制品有限公司