Special formula for lightweight glass packaging material

Abstract

The invention discloses a special formula for a lightweight glass packaging material. The lightweight glass packaging material is prepared from the following raw materials in parts by weight: 900-1100 parts of quartz sand, 110-150 parts of lepidolite, 260-360 parts of soda, 260-360 parts of limestone, 4000-4300 parts of cullet, 18-22 parts of barite, 4-7 parts of chromite ore powder, 28-32 parts of anhydrous sodium sulfate, 17-21 parts of sodium fluosilicate, 0.8-1.2 parts of chrome green and 0.8-1.2 parts of carbon powder. According to the special formula disclosed by the invention, with sodium-calcium-silicate glass as a basic skeleton, alumina, magnesium oxide and barium oxide are auxiliary filled, and a part of sodium oxide is replaced by lithia and potassium oxide, so that the structure is ensured to be stable, and the strength of the glass is strengthened; by virtue of the evenness of a batch of above 95.8 percent, a lightweight bottle (L=0.44*bottle weight / brimful capacity (0.81)), produced by the special formula, with the lightweight degree to be small than or equal to 1 has the impact resistance to be larger than or equal to 0.4J, the internal pressure resistance to be larger than or equal to 1.4MPa and the vertical load to be larger than or equal to 4000N and exceeds the European standard.

Description

technical field [0001] The invention belongs to the field of packaging materials, in particular to a special formula for lightweight glass packaging materials. Background technique [0002] Lightweight glass packaging is the trend of global green packaging development, and it has been widely used in developed countries such as Europe and the United States. Foreign glass furnaces are gas-fired, all-electric melting or electric boosting, without huge auxiliary structures such as regenerators, and the configuration of melting refractory materials is relatively high. The melting temperature is about 1600 ° C, and the melting quality is good. Therefore, the foreign glass packaging formula is relatively simple. [0003] Producer gas is generally the main fuel for domestic kilns, which has low calorific value, complex kiln structure, and the furnace temperature is generally around 1550°C. According to the characteristics of fuel and domestic kiln conditions, combined with the ...

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Problems solved by technology

[0003] Producer gas is generally the main fuel for domestic kilns, which has low calorific value, complex kiln structure, and the furnace temperature is generally around 1550°C. According to the characteristics of fuel and domestic kiln conditions, combined with the characteristics of the main chemical components of local raw materials, it is necessary to design a A special formula for lightweight glass packaging material with low melting point and high density