When using conventional workpieces processed by sandblasting machines, the sandblasting machine accessories we * often use are mainly sandblasting guns and Sandblasting pipe 。 Moreover, these two accessories are also relatively vulnerable sand blasting accessories of the sand blasting machine. Before understanding these two vulnerable parts, we must first understand how they are used together, and understand the role of the sandblasting gun and sandblasting pipe in the whole operation process.

The following 5-point blasting gun FAQs:

Problem 1: little or no sand production

In case of such a problem, first consider whether the abrasive in the sand storage bucket has been used up. For safe operation, close the manual sandblasting machine first, and then add the abrasive into the sand storage barrel. If the problem has not been solved, it is necessary to find the cause of the problem again.

Problem 2: Compressed air generates moisture

The air compressor is a necessary equipment for matching with the sandblasting gun. When the air compressor compresses the air, it will produce moisture to make the abrasive wet and condensed, and then adhere to the sandblasting pipe wall, resulting in no sand production. Therefore, a dryer should be equipped to help the normal operation of manual sandblasting machinery. The wet abrasive is poured out and dried, and can be used after being filtered with a screen.

Problem 3: Sand control valve is blocked

Uneven size of unscreened abrasive will cause sand valve blockage. Turn off the power supply of the manual sandblasting machine first, and then open all the sand regulating valves. After the pressure tank is flushed, open the sandblasting gun, and use high-pressure air to force the blockage out. If the problem still exists, it is necessary to disassemble the valve.

Problem 4: Sand blasting pipe is blocked

Sand blasting pipe is easy to be blocked by foreign matters due to its special structure. When this problem occurs, first turn off the manual sandblasting machine to stop its work, then remove the sandblasting gun, and then turn on the manual sandblasting machine to start work, and use the high-pressure gas generated by the air compressor to discharge the foreign matters. If the problem cannot be solved, it is necessary to reconsider whether it is the blockage of the sandblasting pipe, or replace the sandblasting pipe.

Problem 5: Sand blasting gun is blocked

In addition to the sand blasting pipe being easily blocked by abrasive, the sand blasting gun is also easily blocked. First, we turn off the power supply of the sandblasting gun, remove the nozzle, observe whether there is any foreign matter blocking the muzzle, and clean it before reuse. Abrasives need to be kept dry, and too wet abrasive will also cause blockage of all parts, so compressed air must be kept dry.

As we all know, sandblasting machine uses compressed air to drive abrasive, and uses high-speed abrasive to cut the workpiece surface, so as to remove oxide layer, burr and enhance surface stress. Therefore, in the use of the sandblasting machine, the sandblasting pipe plays the role of channeling abrasive and carrying high-pressure air, and has good wear resistance and high pressure resistance strength. The sandblasting pipes we widely use are mainly divided into Type A and Type B. The former is a common model and the latter can resist static electricity. The sandblasting pipe is black and made of rubber. It is generally divided into two inner layers. The inner layer is wear-resistant and the outer layer is compressive. The maximum bearing pressure of the hose * is 0.63MPa. The anti-static resistance of the B-shaped sand pipe is not more than 2.0M Ω/m.

From top to bottom, Sandblasting pipe The sandblasting gun is linked to the end of the. The use of sandblasting guns is particular, and there are many types. Usually, we equip different sandblasting guns according to the different sandblasting processes of dry sandblasting machines and liquid sandblasting machines. Therefore, the sand blasting gun can be classified into dry sand blasting gun and liquid sand blasting gun, and can be divided into spiral type and in-line type according to the structure. The main materials are aluminum alloy die-casting, stainless steel welding and polyurethane casting. The key part of the sandblasting gun is the nozzle of the gun, which mainly includes the boron carbide nozzle with a service life of more than 100 hours, and the tungsten carbide steel nozzle with a service life of 500 hours to 1000 hours. Change nozzles with different diameters according to the choice of abrasives.

To sum up, if an abrasive bucket sandblasting machine properly handles the workpiece under the normal operation of workers, the sandblasting pipe and gun are the extension of the sandblasting machine itself. A small accessory has a great effect, so we must pay attention to safe operation during the operation of the sandblasting machine. Pre operation inspection is essential to ensure safe operation.