What brand is good for household security doors, and how to choose security doors

About which brand of household security door is good, many netizens will ask "which brand of household security door is good" when choosing a home security door, I have a long time and experience in online shopping, for the choice of home security door, I suggest you analyze the following two aspects, the first is to choose a store with a large sales volume, and the large consumption indicates that the household security door in this store is very popular with everyone; There is also a look at the buyer's evaluation, the evaluation should not only be more, but also the praise rate is high, and the user will write out the use of the experience, so, I suggest you find the sales of home security doors on the Internet:

This is one of the best home security doors in terms of consumer sales.

Class A: It is the original unsafe lock cylinder, the key is flat, only a single-sided single-row bullet slot, including some cross keys, such a lock can be opened in about two or three minutes, and the familiar hand will be faster.

Class B: It is a safer level, it is a double-sided double-row bullet slot from the key, and if there are tools, it will take about 10 minutes for a skilled worker to open the door.

Super B level: is the current level of security, from the key is a double-sided double-row bullet slot, and there is a blade or curve next to it, such a lock cylinder to open it takes more than 280 minutes, the general skilled locksmith also has to spend an hour.

Security door level differentiation:

1. Specific thickness: The thickness of the steel plate determines the strength of the impact resistance.

1) The thickness of the cold-rolled steel plate of the door frame: 2 mm for grade A, mm for grade B, mm for grade C, mm for grade D.

2) Thickness of the outer plate of the door leaf: 1 mm for grade A, 1 mm for grade B, mm for grade C, mm for grade D.

3) Thickness of the inner plate of the door leaf: 1 mm for grade A, mm for grade B, mm for grade C, mm for grade D.

2. Than fillers.

1) Grade A doors are filled differently according to different brands, aluminum silicate rock wool (fireproof cotton), aviation honeycomb aluminum, aluminum foil.

Features: Aluminum silicate rock wool has good thermal insulation, fire and sound insulation properties, aluminum foil is light in weight, corrosion resistance, tasteless, and has good thermal conductivity, heat resistance and low temperature resistance.

2) Class B anti-theft door is made of rock wool and polyurethane foam.

Features: Rock wool has a good flame retardant function and is a poor conductor of heat; The polyurethane foam is filled without gaps, and the bond is strong after curing. Shockproof and compressive, no cracking, no corrosion, no falling off after curing, with ultra-low temperature thermal conductivity, heat preservation resistance.

Efficient insulation, sound insulation, waterproof and moisture-proof after curing.

3) Grade C and Grade D filling, the general market is honeycomb paper.

Features: Basically no thermal insulation, fire protection and sound insulation performance.

3. Locks: anti-theft locks are important components for the door, and the performance of anti-theft locks is directly related to the safety of the door. The anti-theft door produced by the regular manufacturer will have a "security level mark" with a Song body gravure in the upper left corner of the door.

1) The anti-theft level of Class A anti-theft door locks is Class B, that is, the advanced protection level.

2) Class B, C and D anti-theft doors, the anti-theft level of the locks is Class A, that is, the ordinary protection level.

1. According to the size of the door and the direction of the door, there are generally four specifications of the standard door for home use, which is represented by the width and height of the building opening, and the user can choose the appropriate anti-theft security door according to the size of the door opening and the direction of the door, color and pattern.

2. Pay attention to the surface quality and safety of the anti-theft door, the thickness of the steel plate used in the door frame of the steel anti-theft door should not be less than 2 mm, the thickness of the steel plate used in the front and rear panels of the door leaf is generally between 1 mm, and the thickness of the door body is generally more than 20mm, and the weight of the door body should be checked, which should generally be more than 40kg. Check the steel seal of the anti-theft door on the hinge side of the inner door, if there is no steel seal, it does not meet the requirements of the national standard and is not an anti-theft door.

3. Pay attention to the safety of the security of the anti-theft door hardware, the anti-theft performance of the anti-theft door is mainly the performance of the key and lock, so when selecting the anti-theft door, it is necessary to check whether the lock adopts the special lock for anti-theft that has been tested and qualified by the public security department, whether there is a reinforced steel plate for protection at the lock installation place, and check the performance report of the key and lock. There are three levels of anti-theft door lock cylinder, which are ABC (super B) three, of which super B-level locks are the safest.

4. Check the structure and process of the anti-theft door, remove the cat's eye, doorbell box or lock handle, and check the internal structure of the door. There should be several reinforcing steel bars inside the door to organically connect the front and rear panels of the door body. It is best to have asbestos and other materials with fireproof, thermal insulation and sound insulation functions as filling.

Check the process quality of the product, whether there are welding defects, whether the fit between the door leaf and the door frame is dense, etc.

5, the choice of professional brand anti-theft door products anti-theft door brand is a sign of product quality and service, when buying anti-theft doors in the market, it is best to buy in the regular large-scale home building materials city. When purchasing, you should also pay attention to the "FAM" mark of the security door, the name of the enterprise, the implementation of the standard, etc., and the door that meets the standard can be both safe and reliable. When customizing or purchasing anti-theft doors, you should purchase qualified products from the manufacturers who have obtained the "Production License Registration Certificate" issued by the Public Security Bureau, and if necessary, you can ask the seller to show the "Test Certificate" of the relevant departments.