As the representative of the oldest air tools, the earliest air guns can be traced back to 1580, when air guns used air pumps rather than air compressors to compress air. Although the design of the early air guns was far inferior to today's air guns, the... moreAs the representative of the oldest air tools, the earliest air guns can be traced back to 1580, when air guns used air pumps rather than air compressors to compress air. Although the design of the early air guns was far inferior to today's air guns, the shooting speed of the air gun projectiles could have reached 200-300 meters per second at that time, which was extremely amazing.
The biggest difference between air guns and common firearms is that the kinetic energy source of the projectile is different. Firearms rely on the high-energy expansion gas generated by the intense combustion of propellant and other propellants to push the projectile. The energy comes from the chemical exothermic reaction. The air gun uses the gas pressurized by the air pump to eject the projectile, so the gas pressure generated by the air gun is much lower than that of the firearm, and the power of the air gun is usually weaker than that of the firearm.
Although the power of air guns is weaker than that of firearms, early... less
We can use China spray gun for DIY. Painting cars and house walls is not easy, and requires a series of products, such as varnishes, primers and sprayers. This process is very complicated and involves a lot of skills, which explains why professional car... moreWe can use China spray gun for DIY. Painting cars and house walls is not easy, and requires a series of products, such as varnishes, primers and sprayers. This process is very complicated and involves a lot of skills, which explains why professional car painting work is so expensive, and it seems that DIY is more affordable.
First clean the spray gun, because the coating of the spray gun can protect it from corrosion and extend the shelf life. Before putting the paint into the spray gun, please add some solvent to ensure that the inside and outside are clean.
Then, before starting to paint, you can practice with used car panels. Hold the spray gun and spray about 15 cm away from the panel by sweeping left and right. Be careful to use the trigger only when moving the spray gun.
Mix the primer with the thinner according to the proportions in the instructions to make the primer powdery. Use wet and dry sandpaper to smooth the panel, and then use newspaper or cloth to cover the unwanted areas. Each board... less
First, the airless paint sprayer has extremely high coating efficiency. The spraying efficiency is as high as 500-1200 square meters per hour, which is more than 10 times that of traditional roller construction and more than 3 times that of air... moreFirst, the airless paint sprayer has extremely high coating efficiency. The spraying efficiency is as high as 500-1200 square meters per hour, which is more than 10 times that of traditional roller construction and more than 3 times that of air compressor spraying.
Second, excellent surface quality. Spray coating is smooth, bright, dense, without brush marks, rolling marks, and particles.
Third, easily overcome corners, voids and uneven areas that are difficult to brush
Fourth, save paint. The thickness of the brush coating is very uneven, generally 30-250 microns, the coating utilization rate is low, and the air compressor is easy to obtain a coating with a thickness of 30 microns, which saves 20-30% of the coating.
Fifth, extend the service life of the coating. High-pressure airless spray can make the paint particles penetrate into the gaps of the wall, make the paint film form a mechanical bite on the wall, enhance the adhesion of the paint, and extend the service life. less
First, the cordless paint sprayer construction is about 10 times more efficient than the traditional manual roller brush, and the construction efficiency is high; second, the airless spray under high pressure will atomize the paint into fine particles,... moreFirst, the cordless paint sprayer construction is about 10 times more efficient than the traditional manual roller brush, and the construction efficiency is high; second, the airless spray under high pressure will atomize the paint into fine particles, evenly distributed on the wall surface , Forming a smooth, smooth and dense coating on the wall to obtain a high-quality wall coating quality unmatched by traditional methods such as brushing; the third coating particles penetrate into the wall body under high pressure, enhancing the coating The mechanical engagement force of the particles and the wall, the coating is denser, and the service life of the coating is longer; fourth, compared with brushing and roller coating, airless spraying does not require dipping during construction, and there will be no dripping first. In order to avoid paint waste; what is more different from traditional air spraying is that airless spraying is atomizing paint instead of atomizing air, so it will not cause the paint... less
High-pressure airless paint sprayer, also known as airless spraying, refers to a spraying method that uses a high-pressure plunger pump to directly pressurize the paint to form a high-pressure paint and spray the muzzle to form an atomized airflow on the... moreHigh-pressure airless paint sprayer, also known as airless spraying, refers to a spraying method that uses a high-pressure plunger pump to directly pressurize the paint to form a high-pressure paint and spray the muzzle to form an atomized airflow on the surface of the object. Compared with air spraying, the paint surface is uniform and non-grainy. Because it is isolated from the air, the paint is dry and clean. Airless spraying can be used for the construction of high-viscosity paint, and the edges are clear, and it can even be used for some spraying projects with boundary requirements. According to the type of machinery, it is also divided into pneumatic airless sprayer, electric airless sprayer, internal combustion airless sprayer and so on.
Airless spray has the advantages of high coating efficiency, good coating quality, and no need to add additional thinner
For high solids or high viscosity anti-corrosion coatings, high-pressure airless spray must be used. What kind of material to choose which... less
Recently, many friends asked me how to check the air tightness of stainless steel hose after buying it. Today, Yuyao Gaozhan will share with you his little knowledge on this issue.
Pure copper wire has higher strength and elongation than ECCA Wire(XINYU-ENAMELEDWIRE) http://www.xinyu-enameledwire.com/ , which means pure copper is better than copper-clad aluminum in mechanical properties. From the... more1. Mechanical characteristics
Pure copper wire has higher strength and elongation than ECCA Wire(XINYU-ENAMELEDWIRE) http://www.xinyu-enameledwire.com/ , which means pure copper is better than copper-clad aluminum in mechanical properties. From the point of view of wire design, pure copper wire has better mechanical strength than ECCA wire, which is not necessarily required in practical application. ECCA wires are much lighter than pure copper, so the overall weight of ECCA wires is lighter than pure copper wires, which will bring convenience to the transportation and erection of wires. In addition, ECCA wire is softer than pure copper wire, and ECCA wire is better than the pure copper wire in flexibility.
2. Electrical Performance
Because the conductivity of aluminum is poorer than that of copper, the DC resistance of ECCA wire is larger than that of pure copper wire. Whether this affects mainly depends on whether the wire will be used for power supply, such as supplying power to amplifiers. If it... less
Varnish Wire(XINYU-ENAMELEDWIRE) http://www.xinyu-enameledwire.com/product/enameled-rectangular-copperaluminum-wire/ is the main raw materials for motors, electrical appliances and household appliances. Especially in recent years, the electric power... moreVarnish Wire(XINYU-ENAMELEDWIRE) http://www.xinyu-enameledwire.com/product/enameled-rectangular-copperaluminum-wire/ is the main raw materials for motors, electrical appliances and household appliances. Especially in recent years, the electric power industry has achieved sustained and rapid growth. With the rapid development of household appliances, the application of varnish wire has brought about a wider range of fields, with higher requirements for varnish wire. So what is the manufacturing process of varnish wire?
First of all, in the production line, in the normal coating machine operation, most of the operators, energy and physical strength are on the production line, so that the operators have paid a lot of labor, and the line changing joints are prone to quality problems and operational errors. The effective method is a large capacity line. The key to this wire is to control the tension. When the tension is high, it is not only a thin wire, making the surface of the wire lose light, but also... less
