Mould Temperature and Heat Flux Measurements and the Control of Heat Transfer During the Production of Glass Containers

Techniques that have been used to measure mould temperatures and heat flow during the production of press-ware and containers are described. Results are presented that illustrate the effect of changes in important forming variables, such as the temperature of the mould, the pressing pressure, and mould lubricants, on the heat transfer. The implication of these results for the control of the heat transfer during the production of glass containers on the IS machine (the basic design of this machine was introduced in the 1920s and the bulk of glass containers produced worldwide are manufactured on this type of machine) is discussed briefly.