Production process of glass jar

Production process of glass jar

Glass jar production process mainly includes, raw material pre-processing. Crush the bulk raw materials (quartz sand, soda ash, limestone, feldspar, etc.), dry the wet raw materials, and remove the iron-containing raw materials to ensure the quality of the glass. The batch is prepared for melting. The glass batch is heated in a pool kiln or pool furnace at a high temperature of 1550 ~ 1600 degrees, and heated to form a uniform, non-bubble, and liquid glass that meets the molding requirements. The liquid glass is put into a mold to form a glass product of a desired shape, such as a flat plate, various utensils, and the like. Through processes such as annealing and quenching, the stress, phase separation or crystallization in the glass is eliminated or generated, and the structural state of the glass is changed.

1, food glass jar

Uses and related requirements: food packaging containers, food packaging consumables, large consumption. The glass jar needs to pass the food commodity inspection and meet the national hygiene standards. Suitable for food in various states. In order to prevent food deterioration, the tightness of its bottle caps is strictly required. If high temperature sterilization is required, the tank must be resistant to 130 degrees Celsius.

2, Gift glass jar

Uses and related requirements: gift packaging containers, often used for viewing, decoration, gifts. Pay attention to the shape of the glass jar, strict requirements on the material of the glass jar, the better the transparency.

3. Medical glass jar

Uses and related requirements: drug packaging containers, medical equipment, often used for drug packaging, the bottle body is required to have light-shielding properties, the tank body is generally brown, green, black, the user may provide medical packaging certification Also commonly used in glass torches.

4. Chemical test glass jar

Uses and related requirements: Chemical vessels and test equipment have strict requirements for the capacity of glass jars, and the caps must have anti-corrosion functions.


Post time: Jan-20-2020