The main purpose of sandblasting machine

　　sandblasting machineIt is the category of air conveyor.

　　sandblasting machineUsing compressed air in the pipeline, the powder particles (Diameter1 ~ 4mm)Materials are transported from one place to another. In the process of converting kinetic energy into potential energy, the high-speed sand particles have the effect of washing the surface of the object and improving the surface quality of the object.

The sandblasting machine moves forward by compressed air in the pipeline, showing two states: suspension and pulsation.

The ideal working condition is required to indicate the uniform floating state of sand particles in the pipeline. Proper amount of sand and proper amount of air and wind pressure are important factors to determine the effect of sand particle flow. The magnitude of the air flow shall be greater than the settling velocity of at least larger sand particles in the pipe. The wind pressure is sufficient to overcome the air friction loss and resistance to push the sand flow in the pipe. This ensures a smooth flow of sand in the pipe.

However, with the increase of the pipeline, the wind pressure gradually decreases, the airflow velocity decreases, the floating particles first cause uneven suspension, and the flow state of uneven density appears. A pulsating flow condition occurs when the airflow velocity is less than a certain number. If the airflow speed is further reduced, part of the material particles will stagnate at the bottom of the pipe, and other parts will slide forward, causing the stagnant material layer to move unstably, and then form a blockage, causing the operation to fail. This issandblasting machineInThe sandblasting process strives to avoid.

　　sandblasting machineDue to the influence of the abrasive on the surface of the workpiece and the cutting effect, it provides a certain degree of cleanliness and roughness for the surface of the workpiece, and improves the mechanical properties of the surface of the workpiece. Therefore, the fatigue resistance of the workpiece is improved, the coating and adhesion are increased, and the durability of the coating is prolonged. It also contributes to the leveling and decoration of the paint, removes impurities, variegated and oxide layers on the surface, and roughens the surface of the medium.

Sandblasting machine is a widely used process in mechanical manufacturing. Forging, casting, heat treatment and surface treatment parts all need to remove the oxide scale, sticky sand, old coating, molten salt heat, etc. on the surface by sandblasting.

(1) workpiece surface cleaning

oxides, residual salts, residual oil, etc. after heat treatment; black (yes)Color casting oxides, sand, etc.; No residual processing of precision casting oxides, sand, etc.; Residues of processed parts, fine burrs, etc.; Cold and hot rolled steel plates such as oxide scale and welding slag of welding materials(Steel)Oxides, corrosion layers, etc.; sintering residues on the surface of ceramic parts such as mold cavity release agents and deposits; flash of plastic molded parts; radioactive elements on the surface of objects; bridges, hydropower station gates, ships, buildings; airport Runway rubber adhesion layer; various pipes and container tanks in train carriages; oil pollution of old parts, accessories, etc.; remaining paint, corrosion layer and accessories of containers; wrong sintered layer on ceramics; scratches on decorative surfaces, etc.

         (2)Pretreatment of workpiece surface before coating.

Before painting, before painting; before spraying metal spraying before galvanizing, chromium, nickel; before oxidation treatment before flaw detection.