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How to improve the efficiency of blasting and reduce the cost of blasting


I. Normal use of spray gun and adjustment of distance between spray gun and workpiece:

When blasting, the correct distance between the blast gun and the workpiece must be adjusted. Generally speaking, the effective distance between the blast gun and the workpiece of the ordinary pressure blasting equipment is between 80mm-130mm, and the pressure blasting equipment The effective distance between the spray gun and the workpiece is between 200mm --- 400mm. Of course, it is necessary to follow up the actual situation of the workpiece. For example, the hardness of the workpiece is hard, the distance between the spray gun and the workpiece is closer, the hardness of the workpiece is softer, and the distance between the spray gun and the workpiece is farther. The blasting pressure is higher, the distance between the spray gun and the workpiece is longer, the blasting pressure is lower, and the distance between the spray gun and the workpiece is closer.

Second, the best angle of sand blasting

Some users believe that holding a spray gun at 90 degrees is the best angle for sandblasting the work surface, but it is not. The really best blasting angle is 45 degrees. Only when the blasting angle is adjusted to 45 degrees, can the blasting function be most effective.

Three, sandblasting supplies selection

In order to save costs for many customers, the consumables used are industrial river sand, as well as cheap quartz sand and ore sand. The cost of this kind of sand is relatively lower than that of professional sand blasting sand; after use, the sand blasting workshop is full of dust and sand, the wear rate of the blasting equipment is very large, and it is very bad for the workers' bodies. Seeming to save money is actually a huge waste of costs. For example: loss of machinery, injury to workers, factory environment, etc. It is recommended that manufacturers must select high-quality abrasives. Abrasives are generally divided into 3 levels, which are classified as follows: 3 levels-3 levels-2 levels-2 levels-1 level-1 levels. The price and quality of each order is different, and users choose according to their own circumstances.

Fourth, maintenance of wearing parts

The parts where sand flows normally are all called wearing parts. As a leader in the industry, Xiefan uses all the most wear-resistant materials on the wearing parts to minimize the wear. Consumable parts generally include: spray nozzle, spray gun body, sand nozzle, gas nozzle, sand pipe, air pipe, sand return pipe, window glass, gloves, silicone and so on. The user must pay attention to the inspection and maintenance of the wearing parts during use. If the wearing parts are found to be worn, they must be replaced in time.

Five, the choice of air compressor

The air compressor is an auxiliary equipment of the sand blasting machine, and it is also an indispensable power for the sand blasting. Sand blasting machine also has strict requirements on the selection of air compressors, such as the flow rate of the gas source and the dry purity of the gas source. Generally, a sand blasting gun with a nozzle of 8 mm and a sand blasting pressure of 6 kg requires a flow rate of 0.8 cubic meters per minute. According to the manufacturer's requirements, about 15% will be reserved. A spray gun with a clean air source at a flow rate of 1 cubic per minute. Two guns is 2 cubic meters of flow per minute. The increase of the number of spray guns at the same time increases the power of the air compressor according to the ratio.

6. Training for worker operation

Some sandblasting machines are manual sandblasting, and the operation is manually operated. For such a situation, there is a high demand on the operator; therefore, the efficiency and effect of the blasting are controlled by the blasting operator. This situation usually occurs, and the majority of users can avoid it according to different situations. The operator will repeatedly blast the sand at a certain part of the product, that is, two blasts. The worker is not familiar with the performance and operation of the blasting equipment, which will cause damage to the blasting equipment. The worker will also replace some consumable parts that can be used when the consumable parts are replaced. The sand blasting dust removal system will not install instructions for cleaning and so on.

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