Teach you to buy qualified security door

What is security door

Many people think that security doors have been around for so many years. Who doesn't know what a security door is? However, during the interview with reporters, it was found that many consumers had misunderstandings about the concept of security doors. They believed that any stainless steel door or iron door was a security door, but it was not. It is understood that many dealers in the market claim to sell anti-theft doors, and their appearances are similar, but the actual price varies by as much as a few hundred dollars. Actually, at best, many of them are only protective doors. They are not security doors. Many consumers often only pay attention to whether the price is cheap, the style is not beautiful, or the appearance of the door on the visual inspection, at most a hand knock on the door, try a lock, do not know both There is a big difference in quality. The materials used for the qualified security doors must meet the requirements of the national standard. Two similarly looking doors, one for selling 1,000 yuan and the other for 300 yuan, can be purchased. The key lies in the difference in production materials and the price of protective doors. The reason why it is so cheap is that it uses unqualified materials and therefore does not provide protection against theft. According to a security door dealer, formal security doors should pass the national quality inspection standards before they are sold, and the manufacturer must have a production license. The sales point should have quality inspection reports, sales licenses, and business licenses for security doors. However, most manufacturers of protective doors do not have a full “passport”.

What is the standard of tamper resistance?

Security doors are so-called security doors, but also because it has strict requirements on the anti-destructive performance. According to the person in charge of the State Administration of Quality Supervision, Inspection and Quarantine, whether the anti-theft performance of anti-theft doors is up to standard is mainly met with two indicators. One is that within the prescribed time, with a prescribed tool, a maximum of 615 square centimeters cannot be opened within 15 minutes. Of the mouth. This is a very important indicator in the anti-vandalism performance of security doors. It comprehensively stipulates the requirements for material security and structure of security doors. This requires the production of anti-theft door material has a certain strength and thickness; the second is within the provisions of the 15 minutes can not open the door by means of abnormal opening, which requires the use of locks and hinges and the installation of certain requirements . Ordinary door locks can not be used as security door locks, security door locks in safety and quality should be significantly better than civilian locks, the standard requirements for locks is higher than civil locks, clearly specified locks must achieve GA/T73- 94 "Mechanical anti-theft lock" requirements, and the installation of the lock in the strength and anti-corruption, etc. have certain requirements, in the installation site of the lock should have anti-drilling steel plate. The person in charge said that the main quality problem that occurred in the spot inspection of the anti-theft door some time ago was the failure of the anti-destructive performance. Among them, there is a product with no ribs inside the door body, and only two 0.5 mm thick steel plates are used as the inner and outer door panels. It takes only 4 minutes for the inspectors to easily open up a 615 square centimeter hole. Another unqualified product was not equipped with any protective measures during the installation of the locks. The test personnel used a time of 1 minute and 11 seconds to remove the lock and open the door, which was far from the standard 15 minutes. Regarding the problems found in random inspections, the AQSIQ has asked local quality and technical supervision departments to carry out strict rectification and review of unqualified companies for random inspections, and urges all production enterprises to strengthen quality awareness, improve product quality, and promote the healthy development of anti-theft and security door products.

How to choose a qualified security door

The security door can be divided into three types of door-type structure: flat-type security door, fence-type security door and fence-type folding door. At present, it is mainly used as a separate door in a residential house and it is a flat-type security door. The security door is mainly used in conjunction with the building intercom electronic control system products, as a building intercom door with a residential or residential walkway; in the security level can be divided into A-class, B-class and C-class anti-theft security doors, including C-class anti-theft performance The highest is Grade B, followed by Grade A, and Grade A is the lowest. Most of the products on the market today are Class A anti-theft security doors. It is more suitable for general residents and consumers; the main materials are steel, steel and wood structure, stainless steel, and aluminum alloy. And five kinds of copper.

These anti-theft door products have their own characteristics in terms of quality, performance and use, and their natural prices are not the same. Since there are so many "doorways" for security doors, how do developers and ordinary consumers choose and buy security doors? An anti-theft door industry gave some guidance recommendations: First, the anti-vandalism function is the most important function of anti-theft security door, when the purchase can ask the seller to show the relevant department's inspection certificate, product quality should comply with national standards GB17565- 1998 "Technical requirements for the general technical conditions of anti-theft security doors"; Second, the thickness of the steel plate of qualified anti-theft security door frames should be more than 2 mm, the thickness of the door body is generally more than 20 mm, and can be removed by removing the cat's eye, doorbell box or lock handle In other ways to inspect the internal structure of the door, the thickness of the steel plate of the door should be 1.0 mm or more, and there should be several reinforcing steel bars inside, so that the front and rear panels of the door can be organically connected together to enhance the overall strength of the door. The asbestos in the door is best. The material with fireproof, heat preservation and sound insulation functions as filler; Third, check whether the lock adopts a special anti-theft lock that has been tested by the public security department, and whether the steel plate is used for protection at the place where the lock is installed; and fourthly, check the quality of the product. Whether there is a welding defect, whether the match between the door leaf and the door frame is dense, and whether the gap is uniform or not. Kai is flexible and so on; fifth, try to choose a brand assurance products, such as their daughter, Wang Li, on the day, moon and stars God, these large-scale enterprises, good reputation, focus on product quality and after-sales service.

Security Door Furniture Brand Door Price Stainless Steel Residence Aluminum Alloy