Sand blasting machine is a machine that uses compressed air as a power to form a high-speed jet beam to spray material at high speed to the surface of the workpiece to be treated, so that the mechanical properties of the outer surface of the surface of the workpiece changes. Working principle edit this paragraph due to the impact of abrasives on the surface of the workpiece and cutting effect, so that the surface of the workpiece to obtain a certain degree of cleanliness and different roughness, so that the mechanical properties of the surface of the workpiece is improved, so improve the fatigue resistance of the workpiece, increase the adhesion between it and the coating, prolonging the durability of the film, but also conducive to the leveling of the coatings and decorative, the surface of the impurities, miscellaneous colors and oxidation layer to remove the surface. At the same time to make the media surface roughening, so that the role of the substrate surface residual stress and improve the hardness of the substrate surface.
Classification
1, inhalation dry sand blasting machine 1. general composition of a complete inhalation dry sand blasting machine is generally composed of six systems, namely, structural system, media power system, piping system, dust removal system, control system and auxiliary systems. 2. principle of operation of the inhalation dry sand blasting machine is compressed air as the driving force, through the high-speed movement of the airflow in the spray the formation of the negative pressure, will be the abrasive through the pipeline into the spray and the sand blasting machine will be used as a dry sand blasting machine to remove the surface impurities. The abrasive is sucked into the spray through the sand delivery pipe and shot out through the nozzle, and then sprayed onto the processed surface to achieve the expected processing purpose. In the inhalation type dry sand blasting machine, compressed air is both the power of material supply and the accelerating power of the jet. Second, the pressure type dry sand blasting machine for the pressure type dry sand blasting machine we focus on the introduction of the pressure type sand blasting work unit, that is, by the pressure tank and the spray composition of the basic work unit. 1. general composition of a complete pressure type dry sand blasting machine work unit generally consists of four systems, namely, the pressure tank, the media power system, piping system, control system. 2. the working principle of the pressure type dry sand blasting machine presses the pressure type dry sand blasting machine is to the Compressed air as a driving force, through the compressed air in the pressure tank to establish the working pressure, the abrasive through the sand valve pressure into the sand pipe and through the nozzle shot, sprayed to the surface being processed to achieve the expected processing purposes. In the pressurized dry sand blasting machine, compressed air is both material supply power and jet acceleration power. Third, the liquid sand blasting machine liquid sand blasting machine relative to the dry sand blasting machine, the biggest feature is very good control of the sand blasting process dust pollution, improve the working environment of the sand blasting operation. The following is a detailed introduction to the structural composition and working principle of the liquid sand blasting machine.1. General CompositionA complete liquid sand blasting machine is generally composed of five systems, i.e. structural system, media power system, piping system, control system and auxiliary system.2. Working PrincipleThe liquid sand blasting machine uses the abrasive fluid pump as the abrasive fluid supplying power, and through the abrasive fluid pump, the stirred and homogeneous abrasive fluid (mixture of abrasive material and water) is transported into the spray. Through the pump, the well-mixed abrasive liquid (mixture of abrasive and water) is conveyed into the spray. Compressed air is used as the accelerating power of the abrasive fluid, which enters into the spray through the pipeline. Inside the spray, the compressed air accelerates the abrasive fluid that enters into the spray and shoots it out through the nozzle to the processed surface to achieve the expected processing purpose. In the liquid sand blasting machine, the abrasive pump for the material supply power, compressed air for the accelerating power
Characteristics
Unlike other sand processing equipment, the sand blasting machine is a kind of abrasive can be used with the help of the compressed air power, spray to the surface of the workpiece a kind of sand processing equipment. According to the characteristics of the sand blasting machine, sand blasting machine is suitable for cleaning up the rough surface of forging and casting parts, stamping parts and machining parts, used for spraying, plating before the pre-treatment process, strengthen the surface of the parts, sand blasting machine is especially suitable for the production of small and medium-sized parts of a single piece of small batch production. The sand blasting machine is characterized by inlet pressure, sand blasting pressure display, and equipped with a pressure reducing valve, can be adjusted according to the need for sand blasting pressure. The compressed air inlet is equipped with a filter to filter out the moisture in the compressed air. The sand blasting machine is equipped with automatic separation and automatic dust removal system. The used sand is transported from the bottom of the machine by negative pressure to the cyclone separator for separation, which separates the dust, rust, oxide and other impurities generated during the sand blasting process from the good sand. The features of the sand blasting machine enable the sand blasting machine to continue to use the sand stored in the hopper at the lower part of the separator and be recycled, the large oxidized skin and other impurities are blocked by the separator at the lower part of the net, the dust part is transported to the sand blasting machine dust box for processing, the dust is collected and the clean air is discharged into the atmosphere.
Advantages
1. The basic metal parts of the sand blasting equipment will not be damaged, and the dimensional accuracy will not change; 2. The surface of the parts is not polluted, and the abrasive will not have a chemical reaction with the parts of the material; 3. The sand blasting equipment can easily deal with the grooves, concave and other hard-to-reach parts, and a wide range of abrasives can be selected to use; 4. The processing cost is greatly reduced, mainly reflected in the Sand blasting equipment can meet a variety of surface finishing requirements; 5. low energy consumption, cost savings; 6. sand blasting equipment does not pollute the environment, eliminating the need for environmental management costs;
Equipment Functions
Sand blasting equipment has been widely used in machinery manufacturing, instrumentation, medical equipment, electrical and electronic appliances, textile machinery, dyeing and printing machinery, ceramics, arts and crafts, machinery repair and many other fields. and many other fields. Sandblasting equipment as a conventional sand treatment equipment through continuous development, improvement and refinement, with a unique processing mechanism and a wide range of processing, application range, sandblasting equipment in today's surface treatment industry is increasingly favored, the function of the equipment 1. sandblasting equipment for the surface of the workpiece cleanup Sandblasting equipment can be used as a metal corrosion layer, the residual salt on the surface of the heat-treatment parts and oxidation, the oxidized layer on the surface of the rolling parts, the oxidized layer on the surface of the forging parts, and the oxidized layer on the surface of the forging parts, and the oxidized layer on the surface of the rolling parts. The sand blasting equipment can be used to clean the surface of workpiece, such as the rust and corrosion layer of metal, the residual salt and oxidized layer on the surface of heat-treated parts, the oxidized layer on the surface of rolled parts, the oxidized layer on the surface of forged parts, the oxidized layer on the surface of welded parts, the sand and oxidized layer on the surface of castings, the residual dirt and tiny burr on the surface of machined parts, and the surface of old parts, etc., so as to remove the surface adhesion layer and reveal the color of the base. 2. Sand blasting equipment is used for pretreatment before coating the surface of the workpiece Sand blasting equipment can be used as a variety of plating process, brush plating process, spraying process and bonding process of the pre-treatment process, in order to obtain the active surface, improve the plating, coating and adhesion between the bonding parts. 3. Sand blasting equipment can change the physical and mechanical properties of the workpiece Sand blasting equipment can change the surface stress state of the workpiece, improve the lubrication conditions of the coupling, reduce the noise of the coupling in the process of movement, harden the surface of the workpiece, and improve the wear resistance and fatigue strength of the part. 4. Sand blasting equipment for workpiece surface finishing sand blasting equipment can change the surface roughness Ra value of the workpiece to produce matte or diffuse reflection of the surface of the workpiece, in order to achieve the purpose of finishing processing.
Safe Operating Procedures
Sand blasting machine is the modern highest efficiency, less investment in a cost-effective casting cleaning equipment, sand blasting machine is usually used for, easy to corrode the surface of the material or workpiece to remove rust, de-rusting, and de-rusting of non-rusting metals to remove oxidized skin treatment. In the daily work, the sand blasting machine operating procedures are directly related to the ability to produce safely. Sand blasting machine safety regulations: 1, sand blasting machine air storage tank, pressure gauge, safety valve should be calibrated regularly. Air storage tank two weeks to discharge a dust, sand tank in the filter once a month to check. 2, check the sand blasting machine ventilation pipe and sand blasting machine door is sealed. Five minutes before work, must open the ventilation and dust removal equipment, ventilation and dust removal equipment failure, prohibit the sand blasting machine work. 3, before work must wear good protective equipment, not allowed to operate the sand blasting machine bare arm. 4, sand blasting machine compressed air valve should be opened slowly, the air pressure is not allowed to exceed 0.8MPa. 5, sand blasting granularity should be compatible with the work requirements, generally between ten to twenty applicable, the sand should be kept dry. 6, When the sand blasting machine is working, it is forbidden for unrelated personnel to approach. When cleaning and adjusting the running parts, the machine should be shut down.7. It is not allowed to blow the dust on the body with the compressed air of the sand blasting machine.8. After the work is finished, the ventilating and dust removing equipments of the sand blasting machine should continue to run for five minutes and then shut down, in order to discharge the indoor dust, and to keep the site clean.9. In the event of accidents of persons and equipments, the scene should be maintained, and report to the relevant departments.
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