In addition to cold work in the deep processing of glass bottles, glass bottle factories more commonly use thermal work, that is, a manufacturing method between the melting point (1450 degrees) and the Xu cold point (450 degrees). Here we give you a good introduction to the thermal manufacturing method.
The molten hot glass paste is injected and pressed into the engraved pattern mold to become a block, and the pattern is also pressed. Sand mold casting presses the model into moderately deep sand and blasting with acetylene to prevent the sand mold from collapsing. Put the glass paste into the sand mold and wait for the glass to cool before taking it out and then grinding. Glass core forming is one of the earliest techniques used to make glass windows. First, mix soil and horse dung to make a core pericard and place it on a metal rod. Then dip hot glass paste to form the main body of the glass bottle container. And then form the pattern with the glass wire around the outside of the body. It is finished after cooling.
The torch thermoplastic is heated by a small spray gun or a torch. It is also called a torch thermoplastic. It only uses boron glass or soda glass colored rods of various colors, and is continuously combined into a shape with techniques such as stretching, twisting, and winding, suitable for small and exquisite performance, such as glass beads, animals and plants. Because of the different glass rods used, they are divided into solid, hollow and brushed thermoplastic. In addition, they can also be used with colored paintings to increase the interest of the work.
After covering the wax mold with refractory gypsum, the glass raw material and the empty mold are put into the furnace for heating at the same time, and the glass slowly flows into the mold to form at high temperature. Place it in a furnace for dewaxing, slowly remove the plaster mold, and then finish it by grinding and planing. The powder casting method is to fill the glass block and glass powder into a pre-designed model, and put it in a furnace to heat up and melt into a whole glass work.
Finally, there is a common production process in a glass bottle factory that everyone is familiar with-blowing.
Blowing originated in the Roman Empire in the first year of the AD, and it is still the most important, widely used and most varied production method in glass technology. Blowing is mostly based on windows. The process refers to the blowing of molten glass paste with a blowpipe, blowing into small bubbles, and then using tools to heat the shape, and then using another blowpipe to take a small amount of glass for bridging and bottoming. Finally know away and cool the product.