The diagram illustrates the step-by-step process of shaping glass containers.
Overall, the process consists of nine distinct stages, beginning with heating the raw glass material and ending with quality inspection where final products are packed in box and defective ones are thrown away.
In the first step, raw glass is heated in a furnace at 150°C. In the next step, the hot glass is transferred to the first mould, where it is pressed from the top. After being pressed the glass container forms a thick-wall inside a second mould. In the fifth step, air is blown into this container to expand it into its final shape.
In next step the shaped glass container transferred to a kiln at 482°C. Then the container undergoes a cooling stage at 25°C for 60 minutes. When it cools down, in the final stage a worker inspects the glass container for quality. Finally, approved containers are packed into boxes, while defective containers are rejected and thrown away in waste bin.
