Glass has wind and light insulation, stable performance, and various types have different characteristics due to different usage occasions, making it very suitable for a wide range of applications. When selecting glass, we should not only pay attention to price, but also have a certain understanding of its types and performance, to leverage strengths and avoid weaknesses, in order to find more suitable materials for use. We have collected information and compiled this article to help everyone understand how glass bottles are made and the differences between tempered glass and heat-resistant glass.

1. How are glass bottles made

The production process of glass bottles mainly includes: ① pre processing of raw materials. Crush the bulk raw materials (quartz sand, soda ash, limestone, feldspar, etc.) to dry the wet raw materials, and remove iron from the iron containing raw materials to ensure the quality of the glass Batch preparation. ③ Melting. The glass batch is heated at high temperatures (1550-1600 degrees Celsius) in a tank or furnace to form a uniform, bubble free liquid glass that meets the molding requirements.

2.The difference between tempered glass and heat-resistant glass.

Different uses

Tempered glass is widely used in the construction, decoration, automotive manufacturing industries (doors and windows, curtain walls, interior decoration, etc.), furniture manufacturing industries (furniture accessories, etc.), and home appliance manufacturing industries (products such as televisions, ovens, air conditioners, refrigerators, etc.)

The main application of heat-resistant glass in the daily necessities industry (heat-resistant glass preservation boxes), heat-resistant glass tableware, etc., in the medical industry (mostly used for medical ampoules and experimental beakers).

Different effects of temperature changes

Heat resistant glass is a type of heat resistant impact material .Strong (able to withstand sudden changes in temperature and thermal expansion coefficient)Small), using glass with high temperature (high strain temperature and softening temperature), so it can be safely used in ovens and microwave ovens even when the temperature suddenly changes.

Tempered glass may undergo sudden temperature changes in a microwave oven, which may result in cracking. During the production of tempered glass, it contains "nickel sulfide”As time and temperature change, the glass expands and there is a possibility of self explosion. It cannot be used at all in the oven.

Different crushing methods

When heat-resistant glass is broken, it produces cracks and does not fly away. There is no risk of self explosion due to nickel sulfides in heat-resistant glass because it gradually cools down and there is no condensed energy inside the glass, so it does not fly away during breakage.

When tempered glass breaks, it will shatter and fly away. During the tempering process, the glass forms pre-stress and condenses energy inside. Therefore, in the event of damage or self explosion, the condensed energy will be released, forming fragments that fly away and producing explosive sounds.