Security doors as a specific product, then, how ordinary consumers use the naked eye to identify security doors and metal doors, steel entry doors and other non-security door it?
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First of all, consumers should look at the signs on the doors. The anti-theft door is marked with the word “FAMâ€. This is an abbreviation for “anti-theft security door.†Non-security doors such as metal doors and steel entry doors do not have this mark.
Secondly, the difference between security door and ordinary metal door can be distinguished from the quality and texture of the door. Security doors weigh more than 65 kilograms, door frame plate thickness is more than 2 millimeters; while metal doors, steel entry doors and other non-security doors weigh only about 30 kilograms, door frame steel plate thickness is only about 1 millimeter.
In addition, it is necessary to carefully inspect whether the lock adopts a special anti-theft lock that has passed the inspection of the public security department, and at the same time check whether the lock has the anti-drilling function. Nowadays, there are many multi-directional locks for anti-theft locks. The advantage is that not only the locks are locked, but also the upper and lower cross bars can be inserted and locked, which greatly increases the door's anti-mast performance.
Consumers must make sure of the functions and attributes of the purchased goods when they purchase security doors, and ask for instructions; operators must also fulfill their due obligations in operation, or they will suffer unexpected losses.
How to identify the quality of security doors:
1 The lock requires a three-position lock structure, six hinges, doors and windows, and a door lock. Even if the hinges are knocked off, the door cannot be opened.
2 Whether it is a closed or fenced security door, the weight is lighter than the light, because the heavy steel is large and large, and it has good resistance to destruction.
3 The radius of the lock around the 100mm should be more than 1.5mm thick steel plate protection, such as an area of ​​less than 200 square centimeters or a thickness of less than 1.5mm, easily damaged, the quality is not good.
4 The diameter of the door chain and the height of the welding foot, the hinge is also one of the easy-to-break components, the chain is thicker than the thin one, and the height of the welding leg should be more than 2mm.
5 The thickness of the fence, the number of connection points is critical. The diameter of the fence is more than 14mm, and the connection point is a bit more difficult to be destroyed.
In addition, without welding defects, the gap between the door frame and the door leaf is uniform, the opening and closing is flexible, and the joint is sealed; the plating is firm, smooth, and free of defects.
Security door maintenance knowledge:
Door maintenance: often use a clean soft cloth to wipe the dirt on the door leaf, pay attention to ensure the security doors dry, to avoid the sun and rain. Re-plasticized steel plate products should be protected by plastic film to avoid scratching; spray steel plate products to avoid staining with water or other difficult to remove dirt or corrosive substances to extend the life of the security door. It is recommended to decorate the protective film on the plastic plate, or cover the spray plate with a film.
Fireproof door features:
High-quality cold-rolled steel plate is rolled and cold-formed by a flexible production line. The door frame is provided with an inlaid sealing groove. It is equipped with a flame-retardant, sound-insulating sealing strip. The inside of the door leaf is filled with fire-resistant, heat-insulating and sound-insulating materials, with light weight. Soundproofing materials and artificial leather finishes are secured with luxurious decorative studs, plus chrome or stainless steel edging, precision cast stainless steel hinges and advanced fireproof locks, and can be equipped with round or rectangular glass. The styling is particularly dignified and elegant, with excellent fire protection, sound insulation, and heat insulation. It can be applied to communications, broadcasting and computer rooms and stadiums, theaters, dance halls, hospitals, advanced industrial plants, conference rooms and other buildings.
Door industry series:
What is a grid security door? What is a composite security door?
The door leaf is composed of a plurality of (fixed) fixed grid sticks and can be divided into ventilated and semi-sealed. The indoor and outdoor visible area is large, safe and reliable, and the price is low. The flower-shaped style is more and can be used in many occasions. The door frame and the door leaf are flush with each other and have three functions of excellent anti-theft, insulation, sound insulation, etc. or doors used in more than three kinds of houses. Available in various colors and luxurious decoration, it can be equipped with five chains, many locking points, beautiful appearance, and safety and reliability.
What is a seamless steel security door? What is a plastic security door?
Security door leaf and door frame are covered with seam edge, with features such as insulation, flame retardant, and sound insulation suitable for interior installation, etc. It is equipped with five chains, with multiple lock points, beautiful appearance, generous appearance, safety and reliability. It is equipped with a 180° door mirror. Indoors, visitors can use the door mirror to clearly observe the outdoor conditions and visitors, and use the outdoor electronic doorbell to call the indoor staff. The seamless door processed by the composite board has all the features of the steel seamless door, and the texture is beautiful, has a good affinity, can choose various colors, luxury decoration, can be equipped with five chains, lock points, Beautiful appearance, safe and reliable.
How can I tell if the purchased security door is effective?
Distinguish the type of security door
Currently, there are many types and types of security doors on the market. According to the standard issued by the Ministry of Public Security, GB25-92 "General Technical Conditions for Security Doors", security doors can be divided into three types: fence-type security doors, physical doors, and composite doors.
Fence type security door
The fence type security door is a security door made of welded steel pipe. Its greatest advantage is ventilation, light weight, beautiful appearance, and relatively low price. The upper part of the security door is a fence-type steel pipe or steel bar, and the lower part is a cold-rolled steel plate. The multi-spot locking is used to ensure the anti-theft function of the security door. However, the security effect is not as good as a closed security door.
Physical door
The physical door is extruded from cold-rolled steel plate. The door panels are all steel plates. The thickness of the steel plate is mostly 12 mm and 15 mm, and the impact resistance is strong. The double-layer steel door leaf is filled with rock wool insulation and fireproof materials, and has the functions of anti-theft, fire prevention, heat insulation and sound insulation. General entity security doors are equipped with cat's eyes, doorbells and other facilities.
Composite security door
Composed of a physical door and a fence-type security door, it features anti-theft and anti-mosquitoes in the summer, ventilation and cooling, and warm winter insulation.
If conditions permit, it is better to choose solid-type and composite security doors, because the anti-theft performance of these two anti-theft doors is better than the fence type. At present, the security doors on the market are divided into luxury, mid-range, and ordinary categories. The luxury panel material is stainless steel, the main frame is made of stainless steel square tube, and the floral fence is made of stainless steel. The mid-range type is usually a combination of square, round steel and floral decoration; the common type is square steel, round steel and flat. Steel (16 x 4 mm) and other materials. Users can choose their favorite type according to their own situation.
Check key parts
Check the performance and structure of the door lock. The anti-drilling lock is adopted. After the drill bit drills into the keyhole, the lock head rotates synchronously with the drill bit, which can play a role of not destroying the lock head. The locks require a three-position locking structure, with 3 hinges for a single door, 6 hinges for a double door, and a concealed lock for the door leaf and door frame. Even if the hinge is knocked off, the door cannot be opened.
The number of locks on the door and the number of rods to be inserted are best. Two locks are used to control the gates of two plungers. Even if they can be damaged, they will delay the time. In general, a lock head can control 3 to 4 plungers. This type of door has poor anti-theft performance. Once the lock is damaged, several plungers lose their function at the same time.
Code lock and automatic lock
All belong to all-round locks, mainly used for fully enclosed security doors. Password lock has excellent anti-theft performance, and the password is not easy to be cracked and usually has multiple lock points. There are two lock points on the panel and two lock points on the left, which increases the hookness between the door panel and the door frame. The automatic lock, although without a password, is easy to operate. Once locked, the 15 lock points of the three lock positions can be closed at the same time, which is convenient and safer.
Look at the thickness and area of ​​the reinforcing plate around the lock. The security door is divided into two types: closed type and fence type. Whichever type is selected, the lock is the main part of the theft and damage, so the lock plate should be thicker than 2 mm. Cold steel plate, guard plate height is not less than 500 mm. If the closed security door rest of the cold steel plate should also be more than 1.5 mm.
See process quality
Today's security doors are no longer "irony" as they were in the past, but are more focused on styling. Some security doors use high-temperature phosphating treatment, and then use imported plastic powder coating, there are red, green, yellow and other colors, the color more pleasing. The anti-theft door made of stainless steel is beautiful and elegant. Its characteristic is that it does not rust, and there is no problem of discoloration and paint stripping. For the security door material selection is fundamental, the production process quality is the key. Special attention should be paid to checking for any welding defects such as open welding, unwelded, missing welding, slag inclusions, etc. See if the match between the door leaf and the door frame is dense, whether the gap is uniform, whether the opening is flexible, whether all joints are dense, whether the paint plating is uniform, firm and smooth.
Do not underestimate the installation of security doors
When the security door is installed, it is required to be fixed with expansion bolts and welded to death by welding. The number of fixed points is not less than 8 and one side is 4. In terms of maintenance, it is advisable to refuel the door shaft and wiper rod every 3 to 6 months to allow it to be opened flexibly. However, do not add oil to the lock head to prevent dust from sticking and affecting the performance of the door lock.
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