Introduction to glassware

author:安迪模具 Release time:2016-01-10

 Glass mould is the main production technology and equipment, glass products mainly divided into container glass mould and class glass mold, mold in the process of using inner cavity quality decided to the surface of the glass products quality and production efficiency. Therefore, the cavity surface has high precision and smooth finish. Due to mold frequently come in contact with the molten glass of 700 ℃ ~ 1100 ℃, under oxidation and thermal fatigue, growth, at the same time, the mould of contact with the glass of the friction and wear, which requires the mold material has good heat resistance, wear resistance, corrosion resistance, thermal shock, resistance to oxidation, long resistance and thermal fatigue resistance and oxidation resistance is the main performance index. In addition, the mold is also required to be compact, easy to process, thermal conductivity, and low thermal expansion coefficient.

Thermal conductivity is a physical quantity that reflects the heat transfer capacity of the material. Used in glass mould, glass is expected to drop into the glass mold cavity temperature about 1100 ℃, cooled to below 780 ℃ from the mold. For this mold temperature should be dropped to below 780 ℃, as soon as possible in order to improve the production efficiency, to meet the requirements of forming speed and the cooling ability of mould is very important.
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