How much do you know division standard level of security doors?

Security doors level security doors for anti-theft security door, the latest national standards 'anti-theft security door general technical conditions', the security door of guard against theft are divided into: a, b, c, d four levels. The level of security door is according to the thickness of door of steel of the body and prevent damage time to distinguish between security doors. Frame according to the b, c, d anti-theft security level should choose 2 respectively. 00 mrn 1。 80毫米,升。 50毫米。 The outside of the door leaf plate, inner panel thickness in the form of a 'plate/board', according to the security level of security of b, c, d, respectively. Choose 1. 00毫米/ 1号文件。 OO mm, 0。 80毫米/ 0。 8O mm、0. 80毫米/ 0。 6毫米。 Security doors for anti-theft door, qualified in accordance with the provisions of national security doors can prevent damage time is not less than 15 minutes, if it is lower than the stipulated time, it is not safe qualified security doors, so only b security doors and security doors is accord with a standard level of security anti-theft door. General household security door is given priority to with class c, d level, the higher the level, the higher the anti-theft performance. Anti-theft lock core standards in addition to the door itself, door lock is the key to guard against theft, national security locks core can be divided into three levels: A level is the most original and most unsafe lock core, the owner of the keys is flat, only A single single bullet slot, some cross keys also belong to A level, such as long as the lock can open two or three minutes, A master will be faster. Grade B is the security level, from the point of view of key is double double row the bullet slot, such a lock if you have tools, skilled workers to about 10 minutes to open. Class C is the most secure level, from the general double double row the bullet slot on the keys, and alongside A blade or curve, the technical opening time higher than that of class B and class A. Level of security doors to distinguish than thickness: the thickness of the steel plate determines the resistance to impact strength. Frame the thickness of cold rolled steel sheet: a YiBingDing level 2 mm, 2 - respectively 1. 8 mm, 1. 8-1. 5 mm and 1. 5 mm. Door leaf plate thickness: a YiBingDing level 1 mm, 1 mm, 0 respectively. 8 mm and 0. 8 mm. Inside the door leaf plate thickness: a YiBingDing level 1 mm, 1-0 respectively. 8 mm, 0. 8 mm and 0. 6 mm. Worst than filler: the provisions of the state security doors with a honeycomb paper as the filler, class a door according to different security doors brand, the filler is different also, have a plenty of aluminum silicate rock wool ( Fire cotton) , have a plenty of aviation aluminum honeycomb, also have a plenty of aluminum foil. Class a security doors usually adopt aluminum silicate rock wool and aluminum foil. Aluminum silicate rock wool has good heat preservation, fireproofing and sound insulation performance of the aluminum foil light weight, corrosion resistance, non-toxic tasteless, has a good thermal conductivity, heat resistance and low temperature resistance. In general, serie b security doors to choose is rock wool and pu foam. Rock wool has the advantage of good flame retardant function, is a poor conductor of heat. Polyurethane foam filling after the seamless, after curing bonding strength. Shockproof compressive, no crack after curing, no corruption, no loss, with a cryogenic thermal conductivity, thermal insulation resistance. Effective insulation, sound insulation, waterproof and moistureproof after curing. Class c and d level filling of honeycomb paperboard, generally in the market are basically do not have heat preservation, fireproofing and sound insulation performance. Than locks, anti-theft lock is opposite is the most important components, anti-theft lock the stand or fall of performance is directly related to the safety of the door. Normal manufacturer production security door, the door in the upper left corner will have a song typeface gravure 'security level marks'. Class a security door lock of guard against theft level for class B, the advanced level of protection; And b, c, d level security doors, its level of lock of guard against theft to A level, common level of protection. Prevent damage time because of the different levels and a significant difference between the two. B not less than 30 minutes, not less than 15 minutes, class c not less than 10 minutes, level of not less than 6 minutes. At the same time, the locking points between frame and door leaf, a, b, c, d level security doors should not less than 12, 10, 8 and 6. The quality of the same level security doors how to judge? Security door is the escort of whole bedroom, general is mainly used in the home of the bedroom door installation, security doors according to the different degree of guard against theft in the domestic market can be divided into four different levels, respectively is A, B, C, D four grades, such as anti-theft performance of the grade A lowest, other grades according to the level of door of guard against theft that, in turn, increases, but if consumers are facing the same level of security doors should be how to choose the quality of such security doors? Famous chengdu security doors enterprises -- Large front door industry related professionals for you to analyze the following: in addition to observe the appearance such as lacquer layer surface no bubble, colour and lustre is uniform, if the same level, the greater the weight, lock the more points, steel skeleton dense, locks protect more more security doors, quality is relatively better. Because the consumer is buying indoor when it is difficult to see the framework of security doors, security doors products before so big door suggest that consumers may refer to security doors of merchants to provide product section ( Section) , but also from the weight on the judgment, in general, the greater the weight, the internal steel skeleton closer, door was more strong more security, and the locks is also the anti-theft performance of guard against theft is an important standard, and locks protect including prevention drill and cases, including prevention drill piece covered in locks ( Eyes) , you can turn. Case that is in the door locks on the package a few piece of sheet steel. Both protective measures to prevent man-made damage of the locks and so on. In short, above are some simple method of judging the quality of the same level security doors, specific to how to guard against theft of choose and buy, also need to consumer is buying door of guard against theft before knowledge to understand before perform the pick.