How to choose the right sandblasting machine?

1. Generally speaking, the sandblasting effect is mainly determined by the parts material and sandblasting abrasive. According to the different parts and materials, the sandblasting abrasive material is different, the size and size of the sandblasting abrasive are different, and the sandblasting effect is different. Users can choose sandblasting abrasives according to the characteristics of the product and the process of the product.

2. Determine the type of equipment for production efficiency. According to the processing capacity, choose automatic sandblasting production line, semi-automatic sandblasting equipment, press-in sandblasting machine, suction sandblasting machine and other sandblasting equipment. 3. The size of the workpiece determines the equipment specifications.

Choose the size of the cabin according to the size of the workpiece so that there is enough space to complete the processing work. 4. Selection of sandblasting abrasives. Sandblasting abrasives are metal or non-metallic, such as steel jade sand, glass sand, resin sand, walnut sand, steel grit, steel shot, etc.

According to the process done in the early stage, the type and specification of sand are selected

1. Choose a close businessman, or a fast delivery businessman, and the purchase speed of spare parts is fast.

2. There are professional after-sales personnel and stable storage of sand accessories.

3. The above is for standard equipment, in the face of non-standard equipment, it is recommended that customers must visit the factory of the sandblasting machine manufacturer, one to see the scale of the factory, the second to see if there are similar products, and the third to see if there are professional engineering and technical personnel to meet the non-standard design and research and development!

1.Generally speaking, the sandblasting effect is mainly determined by the sandblasting medium (abrasive), which can range from metal abrasives with strong effects to resin abrasives with soft effects, while dry spraying and liquid spraying are also key considerations, and customers can bring workpiece samples to determine.

2.The type of equipment is determined by production efficiency: automatic sandblasting production line, semi-automatic sandblasting equipment, press-in sandblasting equipment, pressure sandblasting machine, and suction sandblasting machine are selected according to the processing capacity.

3.Workpiece size determines equipment specifications: The size of the cabin is selected according to the workpiece size so that there is enough space to complete the processing work.

4.Compressed air requirements: Determine the capacity of the air compressor according to the equipment specifications, and leave 20% margin to protect the service life of the air compressor.

5.After-sales service: When you choose sandblasting equipment, you should consider the professional knowledge and experience of the seller or manufacturer, a good supplier can provide you with the most effective guidance and permanent after-sales service.

6.Product**: Only professional manufacturers can provide good cost-effective products, and adaptable products can invest less and have large returns.

7.When purchasing a sandblasting machine first, the manufacturer should be required to provide detailed product introduction information, such as the scheme diagram. The origin of the main accessories. Thick plates of steel plates. Wait a minute.

When choosing a sandblasting machine, you need to consider the following aspects:

Use requirements: First of all, you need to choose the appropriate model and specification of the sandblasting machine according to the actual use needs. Different models and specifications of sandblasting machines are suitable for different workpiece materials and processing needs, and need to be selected according to the actual situation.

Brand and quality: Choose a well-known brand of sandblasting machine, which can guarantee the quality and stability of the machine. At the same time, it is necessary to pay attention to check the machining accuracy of the machine and the quality of parts to avoid quality problems.

Function and performance: The function and performance of the sandblasting machine are also important factors to consider when purchasing. It is necessary to pay attention to check whether the parameters such as sandblasting pressure, nozzle aperture, and abrasive flow rate of the machine meet the requirements, and whether it has advanced functions such as automatic control, self-cleaning, and adjusting the amount of sandblasting.

Maintenance: During the use of the sandblasting machine, there may be failures and parts that need to be replaced. Therefore, when purchasing a sandblasting machine, you need to consider the repair and maintenance services of the first supplier in order to solve the problem in time.

And cost-effective: The sandblasting machine's is also a factor to consider. It is necessary to be careful not to pursue low prices too much, resulting in poor machine quality, and at the same time, not to pursue high-end models excessively, resulting in low cost performance.

It should be noted that different models and usage scenarios of sandblasting machines may require targeted selection, and the specific situation needs to be selected according to the actual situation.

First, product quality.

Sandblasting machine not only in the appearance to have characteristics, in the selection of materials and the assembly process of each part is also very strict, the sandblasting machine on the market by the pressure tank, medium power system, pipeline system, control system, can be understood from the performance and quality of the components, good products have environmental protection and energy saving, quality assurance, strong stability and other characteristics.

Second, the scale and qualification of the enterprise.

Although there are many manufacturers of sandblasting machines, some enterprises do not have their own qualifications, and there are no relevant production qualifications. If you have the conditions, you can choose to inspect the factory on the spot, you can intuitively understand the basic situation of the enterprise, or ask for the qualification of the enterprise for production, so that you can understand the scale of the sandblasting machine enterprise.

Third, the after-sales system and after-sales team.

Although the sandblasting machine technology has been developed for many years, the product technology is mature, and the quality control is also stable, it is still necessary to pay attention to the choice of regular manufacturers, because it can ensure the after-sales of the product.

<> conveyor type automatic sandblasting machine.

Turntable automatic sandblasting machine.

Here's how to choose the right sandblasting machine:

The first step is to determine which model can meet the production requirements for your own products.

The second step is to contact the manufacturer and ask for the same type of machine to process the model and see the effect after processing.

The third step is to visit the factory that has been confirmed by proofing to see if it is a manufacturer and whether there is a guarantee after sale.

Fourth, I don't say that everyone knows, bargaining! Bargain! Bargain!

It is in the process of transporting powdery particles (diameter 1 4mm) materials from one place to another by using compressed air in the pipeline, and converting kinetic energy into potential energy, so that the high-speed moving sand particles wash the surface of the object to improve the surface quality of the object.

Sandblasting cleaning is a widely used process in machinery manufacturing, all forging, casting, heat treatment and surface treatment of parts, must be sandblasted to remove the surface of oxide scale, sticky sand, old plating, molten salt heat. rust, etc.

Introduction to terminology

The ideal working condition requirement is that the sand particles present a uniform suspended flow state in the pipeline, and the appropriate sand feeding amount and the appropriate air volume and air pressure are the most critical factors to determine the flow effect of the sand particles.

The size of the air volume should make the flow rate of the air in the pipeline at least greater than the settlement rate of the maximum particles of sand, and the wind pressure should be enough to overcome the friction loss and resistance of the air in the pipeline to promote the flow of sand particles, so as to ensure the smooth flow of sand particles in the pipeline.

Industrial equipment.

1. Pretreatment: Electroplating, painting, spraying and other sandblasting treatment before covering, the surface is absolutely clean, and the adhesion and anti-corrosion ability of the covering layer are greatly improved.

2. Cleaning: casting, stamping, welding, heat treatment and other metal workpieces to remove oxide scale, residue and dirt; Surface cleaning of non-metallic products, removal of black spots on the surface of ceramic embryos and restoration of lacquer patterns, etc.

3. Refurbishment of old parts: refurbishment and cleaning of all moving parts such as automobiles, motorcycles, mechanical and electrical equipment, etc. At the same time, it eliminates fatigue stress and prolongs service life.

4. Finishing: All metal products and non-metal products (plastic, crystal, glass, etc.) surface traces are eliminated, and matte matte surface treatment is used to improve the surface of the product.

5. Mold treatment: argon surface matte treatment on the surface of the mold, first-class production, and mold cleaning, without damaging the surface of the mold, to ensure the accuracy of the mold.

6. Burr treatment: remove the micro burrs of the machined parts, and eliminate the overflow burrs of the injection parts.

7. Rework of defective products: removal of defective covering layer of products, removal of poor surface coloring and printing.

8. Strengthening: increase the surface hardness of metal parts and eliminate stress, such as aircraft blades, springs, machining tools and other surface treatment.

9. Etching and anti-slip processing: surface etching patterns, words and anti-slip treatment on the surface of metal products and non-metal products, such as: marble, handle anti-slip, seal, stone tablet lettering, etc.

10. Denim clothing treatment: the effect of frosting, whitening and whiskering of denim clothing is achieved.

Sandblasting is a method of using compressed air to blow quartz sand out at high speed to clean the surface of parts. It is also called sand blowing in the factory, which not only removes rust, but also degreases by the way, which is very useful for painting. It is often used to remove rust on the surface of parts; Modify the surface of the parts (the small wet sandblasting machine sold on the market is used for this purpose, the sand grains are usually corundum, and the medium is water); In the steel structure, the application of high-strength bolts for connection is a relatively advanced method, because the high-strength connection is the use of friction between the joint surfaces to transmit force, so the quality of the joint surface is very high, at this time must be treated with sandblasting on the joint surface.

The sandblasting process is divided into dry sandblasting and wet sandblasting.

Dry sandblasting has two kinds of mechanical sandblasting and air pressure sandblasting, each of which is divided into manual, non-automatic or continuous automatic methods, and the manual air pressure sandblasting machine is widely used in China, and it also uses a variety of complex shapes of small and medium-sized parts.

The abrasive used in wet sandblasting is the same as that of dry sandblasting, and the abrasive can be mixed with water to form a mortar, and the abrasive generally accounts for 20%-35%, and constantly stirred to prevent sinking, and the sand can be pressed into the nozzle to spray to the parts, or the sand and water can be put into the tank respectively, mixed before flowing to the nozzle, and then sprayed to the parts, in order to prevent the steel parts from corroding, sodium nitrite and other corrosion inhibitors must be added to the water, in addition, the sand should be dried before the next use. There are many forms of equipment for wet sandblasting machines, and the most commonly used is also the blasting chamber.

The difference between shot blasting and sandblasting is the connection.

But whether it is shot blasting or sandblasting, it is in the form of compressed air that can be used. Of course, it is not necessary to use a high-speed rotating impeller for shot blasting. Generally speaking, shot blasting (small steel shot) is mostly used in steel plate pretreatment (rust removal before painting) in the repair and shipbuilding industries; Sandblasting (ore used in repair and shipbuilding industries) is mostly used in forming ships or sections, and the role is to remove the old paint and rust on the steel plate and recoat it.

In the repair and shipbuilding industry, the main role of shot blasting and sand blasting is to increase the adhesion of steel plate coating paint.

In fact, the cleaning of castings is not only with shot blasting, for large parts, the drum sand is generally cleaned first, that is, the riser of the casting is cut off and then rolled in the drum, and the parts collide with each other in the drum, and most of the sand on the surface is removed before shot blasting or shot peening.

Shot blasting and sandblasting can play a role in the purpose of cleaning and decontamination of the workpiece, the purpose is to prepare for the next sequence, that is, to ensure the roughness requirements of the next process, and some in order to have a consistent surface, shot blasting has a strengthening effect on the workpiece, and the sandblasting is not obvious. Generally, the shot blasting is a small steel ball, and the sandblasting is quartz sand. According to different requirements, the number of meshes.

Precision casting uses sandblasting and shot blasting processes almost every day.

Precautions for using a sandblasting machine:

1. The amount of sand is small, or even no sand: the sand in the sand storage bucket is exhausted, turn off the gas, and slowly add the corresponding sand material. Second, the sandblasting gun of the sandblasting machine may be blocked:

After the gas stops, go to the nozzle to see if there are any foreign objects, and if so, clean up the foreign objects; There is also to see whether the sand is dry, and too wet the sand will also cause blockage, so the compressed air must be dry.

3. The sandblasting pipe is blocked: the pipe is blocked by stolen goods, after the gas is stopped and the gas is turned off, the nozzle is removed first, and then the sandblasting machine is turned on, and the foreign body is blown out with the high-pressure gas of the air compressor; If it still doesn't work, you need to remove the tube to clean it or replace it with a new one.

Fourth, the sandblasting abrasive moisture combination does not cause sand, this spray gun nozzle clean, sandblasting abrasive poured out, dried with a screen filter.

5. A large amount of water generated by the compressed air of the air compressor supporting the sandblasting machine will not only cause the sand to be wet, but also cause the sandblasting pipe wall to be wet and adhere to the sand, and slowly block the pipeline, so this kind of thing should be avoided, and it is best to equip a dryer.

1. The design and manufacture of the sandblasting machine shall comply with the provisions of the following standards, and shall be manufactured, manufactured and used in accordance with the drawings and technical documents approved in accordance with the prescribed procedures.

2. The electrical system of the sandblasting machine conforms to the provisions of GB T.

3. The pneumatic system of the pressure sandblasting machine shall comply with the provisions of GB T 7932 and the Regulations for Safety and Technical Supervision of Pressure Vessels.

4. The surface painting of the sandblasting tank of the sandblasting machine shall comply with the provisions of JB T 9062, and the other surface painting shall comply with the provisions of JB T 5364.

5. The sandblasting machine should clearly apply to the type of abrasive and the range of abrasive particle size.

6. The sandblasting machine should clarify the working pressure, applicable nozzle caliber and air consumption.

7. The sandblasting machine should be able to operate normally under the environmental conditions of the ambient temperature of -10 degrees to 45 degrees and the relative temperature of not more than 90.

8. The noise sound pressure level of the single-gun ** sandblasting machine should not exceed 85 decibels. When there is a noise agreement between the two parties, it shall be executed according to the agreement.

9. The air supply of the air compressor should be greater than the maximum air consumption of the sandblasting machine.

10. The compressed air used in the sandblasting machine must be dry and oil-free.

11. The sandblasting machine should be equipped with safety protection devices.

12. The ** type sandblasting machine should be equipped with a dust removal device. When the non-** type sandblasting machine is used, the operator must have reliable labor protection measures.

13. When the electric control switch of the hand-operated sandblasting machine is located at the spray gun, the control voltage must be a safe voltage.

14. The sandblasting machine is not allowed to be in the spray state as soon as the compressed air is turned on. After the loss of the control signal, the gun should be in a non-spraying state.

15. The operation, rotation and other parts of the sandblasting machine should be sealed reliably.