What are the main structures of manual sandblasting machines?

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

Manual sandblasting machine processing is different from friction processing such as abrasive cloth and stone, the processed abrasive particles, fly directly to the surface of the object to be processed, when the surface of the processed object has a considerable degree of height, as long as the particles can fly, it can be processed, and because it is not friction processing, although it can improve the surface roughness, but there is no smoothing and mirroring effect, these characteristics are easy to be neglected.

1. Box: The box is one of the most important components of the sandblasting machine, and the box is also the box, and the size of the box is determined according to the size of the product. Such as:

If your workpiece is 400 long, 200 wide and 300 high, then the box you choose is at least 600 long, 400 wide, 550 high, of course, there is no such model on the market, most manufacturers of box-type sandblasting machines have several standard types, this model can be selected. If it is a larger size such as more than 1 meter, it is generally a non-standard model and needs to be customized, so when you choose the box, try to choose the standard, because this is much lower than the non-standard.

2. Dust removal fan: some box-type sandblasting machines have separate dust collectors, and some do not; But whether it is with or without a dust collector, there must be a dust removal fan, if not, the box is not visible at all, and there is no way to work. There are two types of dust removal fan discharge methods:

The first is placed directly behind the box, and a hole is made in the back of the box; The second is placed on the cyclone separator, which is the cylinder that separates the sand and dust.

3. Spray gun: the most important part of the sandblasting machine, it can be said that there is no sandblasting machine without a spray gun. Most of the box-type sandblasting machines use siphon (negative pressure) spray guns

Such as general spray gun, KL spray gun, KL (Call) spray gun switch on the spray gun, can save a solenoid valve, but the market is rarely used, the use is not large, the composition of the spray gun has a sand core, air core, nozzle. The main and most expensive of these is the nozzle.

4. Solenoid valve: The solenoid valve of the box-type Shenzhen sandblasting machine generally adopts a solenoid valve with an interface of 4 points. The main function of the solenoid valve is to switch the gas on and off.

5. Pressure regulating filter, some manufacturers do not directly use the pressure regulating filter, but divide the pressure regulating filter into pressure regulating valve and filter with the same effect.

The sandblasting machine is a kind of machine that uses compressed air as the power to form a high-speed jet beam to spray the sand material to the surface of the workpiece to be treated at high speed, so that the mechanical properties of the workpiece surface change. Due to the impact and cutting effect of the abrasive on the surface of the workpiece, the surface of the workpiece obtains a certain cleanliness and different roughness, and the mechanical properties of the surface of the workpiece are improved, so the fatigue resistance of the workpiece is improved, the adhesion between it and the coating is increased, the durability of the coating film is prolonged, and it is also conducive to the leveling and decoration of the coating, and the impurities, variegation and oxide layer on the surface of the surface are removed, and the surface of the medium is roughened, so that the residual stress on the surface of the substrate is eliminated and the hardness of the surface of the substrate is improved.

The role of the sandblasting machine:

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 surface traces are eliminated, and matte matte surface treatment is used to improve the surface of the product.

5. Mold treatment: matte matte surface treatment of the mold surface, first-class production, and mold cleaning, without hurting the mold surface, 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 machine is the category of air conveying machinery. 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.

Dry sandblasting machine. Suction type dry sandblasting machine.

1) General composition.

A complete suction dry blasting machine is generally composed of six systems, namely structural system, medium power system, pipeline system, dust removal system, control system and auxiliary system.

2) How it works.

The suction dry sandblasting machine is powered by compressed air, and the negative pressure formed in the spray gun through the high-speed movement of the air flow sucks the abrasive into the spray gun through the sand pipe and shoots out through the nozzle, and sprays it to the processed surface to achieve the expected processing purpose. In a suction dry blaster, compressed air is both the supply power and the acceleration power of the jet.

Press-in dry sandblasting machine.

For press-in dry blasting machines, we focus on the press-in blasting work cell, which is the basic work cell consisting of a pressure tank and a spray gun.

1) General composition.

A complete press-in dry sandblasting machine working unit is generally composed of four systems, namely pressure tank, medium power system, pipeline system, and control system.

2) The working principle of the press-in dry sandblasting machine.

Press-in dry sandblasting machine is powered by compressed air, through the working pressure established by compressed air in the pressure tank, the abrasive is pressed into the sand pipe through the sand outlet valve and injected through the nozzle, and sprayed to the processed surface to achieve the expected processing purpose. In press-in dry blasting machines, compressed air is both the supply power and the acceleration power of the jet.

Reduce labor, high efficiency, and uniform effect after sandblasting!

It is widely used, and the industries basically involved are used, the most common electronic bakelite, aviation and aerospace, hardware glass, plastic rubber, furniture and clothing, ceramic flooring and so on and so on.

There are many ways to say the most important function of the automatic sandblasting machine, which is explained by my many years of experience with customers around the world.

Automatic, can replace the single gun of hand spraying, can be used for multiple guns, fixed gun angle and distance, high stability, automatic sandblasting can be very stable, walking will not have overlapping sandblasting shadows, hand spraying has visual weakness, automatic adjustable, multi-directional angle stability.

Automatic sandblasting enables effective quality control.

Automatic sandblasting is generally a mass-produced model that can be customized.

Each has its own uses.

1. Cleaning of the surface of the workpiece.

Oxide scale, residual salt, residual oil, etc. after heat treatment; oxide scale, molding sand, etc. of black (have) color castings; Oxide scale, molding sand, etc. of precision castings are processed without margin; residues, microburrs, etc. of machined parts; oxide scale, welding slag, etc. of weldments; oxide scale, rust layer, etc. of cold and hot-rolled steel plates (section steel); Release agents, deposits, etc. for various mold cavities; sintering residues on the surface of ceramic elements; flash of plastic molded parts; radioactive elements on the surface of objects; bridges, hydropower station gates, ships, buildings; rubber adhesion layer for airport runways; Railroad car; various pipes and containers; oil stains and attachments of old parts; residual paint, rust layer and attachment of containers, etc.; Wrong sintered layers on porcelain; Scratches on the decorative surface, etc2. Pre-treatment of the workpiece before surface coating.

Before painting and baking; Before spraying; Before metal spraying; Before galvanizing, chromium and nickel plating; Before oxidation treatment; Before flaw detection.

Summary. At present, there are several types of sand used in the market for sand blasting machines, and the commonly used sand is: brown corundum, white corundum, glass sand, quartz sand, zirconia corundum, black corundum, green silicon carbide, resin sand, ceramic sand, resin sand, steel grit, steel shot, alumina sand, silicon carbide, etc.

What are the sand used in sandblasting machines.

At present, there are several types of sand used in the market for sand blasting machines, and the commonly used sand is: brown corundum, white corundum, glass sand, quartz sand, zirconia corundum, black corundum, green silicon carbide, resin sand, ceramic sand, resin sand, steel grit, steel shot, alumina sand, silicon carbide, etc.

Sandblasting abrasives have the characteristics of short grinding time, high efficiency, good benefits and low efficiency; Moderate hardness, high toughness, good self-sharpening, low sand consumption and recycling, good finish of grinding parts; Moreover, the chemical composition is stable, wear-resistant, acid and alkali resistant. Sandblasted abrasives have shell-like fractures with sharp edges and corners, which can form new edges and edges in continuous grinding and grading, making their grinding ability superior to other abrasives. In particular, it has the advantages of high hardness, specific gravity, stable chemical properties and unique self-sharpening, which has become the first choice for abrasives in sandblasting process; At the same time, it is also an ideal material for sandblasting, rust removal, cleaning workpieces, grinding and polishing.