Buy security doors do not want to be cheap, because the anti-theft door market is mixed. At present, there are nearly 2,000 enterprises that produce anti-theft doors throughout the country. This does not include a large number of unregistered underground factories, resulting in a wide price gap for security doors, ranging from RMB 400 to RMB 2,000. A few days ago, the quality supervision department found that 70% of the products were unqualified. In this regard, the new national security door safety standards will be officially implemented in the first quarter of this year. Recently, the Minhang Consumer Protection Committee has repeatedly received complaints from customers about the quality of security doors. A manufacturer has been complained six times in a row, and two of these mediations have not been completed. Such as a security door Ms. Yang ordered, after the completion of the renovation found that opening and closing difficulties, when the doorbell ringing sound, uneven surface, uneven paint. In the mediation, the manufacturer stated that the consumer had to pay 200 yuan for replacement, otherwise it refused. Ms. Yang can only choose to solve lawsuits. Property reminder Buy security door should pay attention to three good: One is to check the quality of the door. Anti-vandalism function is the most important function of anti-theft security door. When buying, the seller is required to show the public security department's test certificate. At the same time should check the weight of the door, generally should be more than 40 kg, the thickness of the steel plate of the door frame should be more than 2 mm, and check the internal structure by removing the cat's eye, doorbell box or lock handle, the thickness of the steel plate should be more than 1 mm, There are several reinforcing steel reinforcements, and asbestos and other materials with fireproof, heat-insulating, and sound-insulating functions are the best fillers in the door. Check the locks to see if they have adopted special anti-theft locks that have been tested by the public security department. At the same time, there should be steel plates with a thickness of more than 3 mm at the locks. The second is to choose the right size. Should choose the appropriate anti-theft security door according to the actual requirements such as the size of the door opening, the opening direction, and the color pattern. The appearance of the exterior surface of the door should be uniform in color, without scratches or bubbles. The third is to check the installation quality. After the security door is installed, consumers must first check whether the keys, insurance policies, invoices, and after-sales service documents are consistent with the accessories and materials provided by the security door manufacturer. When the lock is turned on, the lock cylinder should be easy and flexible, no jamming phenomenon, and the door should be flexible and free from jams, abnormal sounds, etc. during the opening process of 90 degrees. Door purchase security door three trees paint door prices
An electrostatic spray gun is a type of device used for applying a coating, such as paint or powder, to a surface. It operates by charging the particles of the coating material with a negative or positive electric charge, which then attract to the opposite charge of the surface being coated. In this article, we will explore what electrostatic spray guns are, how they work, and why they are important.
What is an electrostatic spray gun?
An electrostatic spray gun is a tool used to apply a charged coating to a surface by utilizing the principles of electrostatics. By imparting a charge to the coating material as it is sprayed, the particles of the coating become attracted to the surface of the object being sprayed, creating an even, uniform coating.
How do electrostatic spray guns work?
Electrostatic spray guns operate based on the principles of electrostatics, which states that particles that have the same charge will repel each other, while particles with opposite charges will attract. The electrostatic spray gun charges the paint, powder or other coating material with a negative or positive charge as it exits the nozzle, creating a fine spray of charged particles. When these charged particles reach the surface being coated, they are naturally attracted to the opposite charge of the surface, creating an even and uniform coating.
Why are electrostatic spray guns important?
Electrostatic spray guns play a significant role in the coating industry, primarily due to the following reasons:
Increased efficiency: Electrostatic spray guns deliver a more efficient transfer of the coating material to the surface being applied, resulting in a reduction of overspray and waste.
Improved quality: The charged particles delivered by an electrostatic spray gun create an even and uniform coating, resulting in a higher quality and more professional finish.
Environmentally friendly: Electrostatic spray guns reduce the amount of coating material necessary for a project, resulting in reduced waste and environmental impact.
In summary, electrostatic spray guns are essential tools in the coating industry. They offer increased efficiency, improved quality, and environmental benefits compared to traditional spray methods. When used correctly and maintained regularly, electrostatic spray guns can provide a valuable tool for a range of coating applications.
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