Glass bottle mould maintenance and repair

Mold is the basis of medicinal glass molding, its quality directly affects the quality of the glass bottle, mold in the process of use is bound to be damaged, the main reason is: using the process of oxidation and wear and mechanical damage. To elaborate the mold maintenance and good management can extend its service life, reduce the production cost. A, mold repair is mainly affected by mechanical damage parts repair, removal of oxide skin and surface polishing treatment, make it reach the required in good condition.

from the bottle blowing machine to replace the mould first to remove scale and the scale of lubricant. Cleaning method: manual mechanical cleaning method, blasting method and direct chemical cleaning method and electrochemical cleaning method, etc. The first two methods most commonly used, sand blasting method with high efficiency. It has two kinds of dry and wet processing, abrasive are fine quartz sand and fine sand corundum, glass beads, dry grinding.

with the main failure types of glass forming die: oxidation ( Peeling, peeling, pitting) , chamfering and deformation. Squamous spalling is the main form of glass forming mold scrap. The key factors that affect the service life of the mould is the heat resistant material, namely at high temperature, the oxidation resistance of material and antigrowth ability. It depends on the organization of the substrate and the graphite morphology.

add copper and chromium cast iron, tin and other elements, can promote the formation of pearlite, improve the hardness of cast iron, thereby improving mould chamfering resistance, scratch resistance, wear resistance ability. To join the elements such as silicon, aluminum, SiO2 and Al2O3 surface oxide film formation, thus improve the mold surface oxidation resistance.