The pressure type sand blasting machine uses compressed air as the power to form a high-speed jet beam to spray the blasting material (copper ore sand, quartz sand, corundum, iron sand, sea sand) on the surface of the workpiece to be treated at high speed, so that the outer surface of the workpiece surface The appearance or shape of the workpiece changes. Due to the impact and cutting action of the abrasive on the workpiece surface, the workpiece surface has a certain degree of cleanliness and different roughness, and the mechanical properties of the workpiece surface are improved, so the fatigue resistance of the workpiece is improved. It increases the adhesion between it and the coating, prolongs the durability of the coating film, and is also conducive to the leveling and decoration of the coating.
Compared with other cleaning processes (such as pickling, tool cleaning), the pressure blasting machine has the following characteristics:
First, sand blasting is the most thorough, most versatile, fastest and most efficient cleaning method.
Second, the blasting treatment can be arbitrarily selected between different roughnesses, and other processes cannot achieve this.
Manual polishing can produce a rough surface, but the speed is too slow. Chemical solvent cleaning will clean the surface too smoothly, which is not conducive to coating adhesion.
Sand blasting, as a conventional abrasive jet technology, has been continuously developed, improved and perfected. With its unique processing mechanism and extensive processing and application scope, it has become more and more popular in today's surface treatment industry. Used in machinery manufacturing, instrumentation, medical equipment, electronic appliances, textile machinery, printing and dyeing machinery, chemical machinery, food machinery, tools, cutting tools, measuring tools, molds, glass, ceramics, crafts, machinery repair, and many other fields.
The working principle of the pressure type sand blasting machine is to use compressed air to drive the abrasive (or shot) to be sprayed onto the workpiece surface, and perform micro-cutting or impact on the workpiece surface to achieve rust removal, paint removal, surface impurities removal, surface strengthening and Various decorative treatments. It is widely used in various metal components and welding surfaces in the manufacture of ships, aircrafts, metallurgy, mining, railways, bridges, chemicals, vehicles and heavy machinery. At the same time, it is an ideal device for non-metallic (glass, plastic, etc.) surfaces, decoration and carving.
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