Some glasses have a ring of curling around the mouth, and the wall thickness is relatively thick, but there are also glasses that have nothing but a thin layer at the mouth.
This is due to different oral treatments. There are two common treatment methods: grinding and frying.
[ Fried mouth is also called blast mouth ]
Burst refers to the cap that connects the upper part of the glassware product with the blowpipe. Part split off.
The geometric size of the product after the cap is cut off is generally about one millimeter higher than the finished product specification size. Commonly seen, there are two ways of blasting, artificial and mechanical, and artificial blasting is divided into heating cutting method and cooling cutting method. Machine blasting mainly refers to the laser blasting machine using laser to cut the excess cap part.
[ Grinding ]
The purpose of the mold opening of the glass product is to make the product rough and uneven or the part of the glass mold reserved at the mouth during molding, so that the product meets the requirements of a certain shape, size and plane. The mouth processing method of this grinding process is basically operated manually. In this case, it is subdivided into simple grinding on the grinding disc, and grinding on the abrasive belt, and there is also an edge grinding and chamfering machine assisted. , There can be rough grinding, fine grinding and fine grinding processes.
After the above two different oral treatments, many glassware products still have the phenomenon of rough hair with different strengths. In order to restore the bright and shiny surface of the glass itself, the next polishing process is required. , The common polishing methods include flame polishing, mechanical polishing and chemical polishing.
