Glass quality assessment. Glass packaging and labeling.
Finished glass products should have a smooth surface and polished edges. The outer surface of the bottom of the cookware must be balanced. Lids and stoppers should be carefully selected to match the shape and color of the glass. Dodatkowo …
Characteristics of household glassware.
Household glass includes a very wide range, m.in.: table glass, fancy goods, crystal, mirrors, thermoses and heat-resistant glass. These are products of various shapes, sizes and colors. They can be decorated or plain, thin-walled or very thick, w zależności od …
Building and technical glass.
The main properties of building glass, from which its application results, to: transparency, chemical resistance to weather conditions, high hardness, bad thermal conductivity and non-flammability. The disadvantage is its fragility.
Do szkła budowlanego zalicza się przede wszystkim szkło …
Types of glass.
Different criteria are taken into account when classifying glass.
Because glass softening temperature stands out:
• soft glass - softening temperature approx. 500°C, quite soft, brittle, susceptible to hydrofluoric acid, easy to sand;
• hard glass…
Technological process of glass.
The technological process consists of many operations and activities, during which appropriate temperature conditions should be maintained, atmosphere and gas pressure. Temperature is the determining factor on the melting efficiency, the atmosphere affects cleanliness, pressure and the homogeneity of the glass mass. …
In Poland, there are all the raw materials needed to create a glass set.
The basic raw materials are: sand, baking soda (artillery), limestone (stabilizer).
Sand – (mainly silicon dioxide SiO2) - natural ingredient, glass-forming, is approx. 3/4 whole glass mass. Wzrost zawartości SiO2 przyczynia …
Glass - general information.
As archaeological research has shown, the art of glass making was known already six thousand years ago. Ancient was the cradle of glass industry: Egypt, Syria and Rome. After the fall of the Roman Empire, in modern times, glassmaking slowly began to revive, początkowo …