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Second, check the door body quality
1. Certificate: Anti-vandalism function is the most important function of anti-theft security door. At the time of purchase, the seller must provide the manufacturer certificate (manufacturer must have), and keep the purchase order (stamp), you can also ask to show the door Test certificate.
2. Appearance: To inspect the appearance of the door body, the paint layer on the door panel should be uniform in color, free of scratches and bubbles.
3. Weight: Check the weight of the door, the weight of a qualified security door should generally be more than 40 kg.
4. Internal structure: The internal structure of the door body can be inspected by removing accessories such as cat's eyes, door bells or lock handles. The thickness of the steel plate of the door body should be 1.0 mm or more. There are several reinforcing steel bars inside, and the door should have fire prevention, heat preservation, Sound insulation material as filler. Finally, the locks should be checked to see if a special anti-theft lock is used that has passed the inspection of the door. At the same time, a steel plate with a thickness of 2 mm or more should be protected at the lock.
Stainless steel security doors should also pay attention to the quality of the door:
1. The stainless steel plate of the door is generally selected 304 # and 206 # - the number represents the degree of rust resistance of stainless steel. 206# has poor anti-rust effect, and it will play matt or rust (such as welding spot) when it encounters acid (such as floor cleaner);
2. Generally require manufacturers to provide 1.2 thick stainless steel plate (some finished products on the market is 0.8 thick);
3. It can also be seen that the shadow gauges on the stainless steel plate of the door are not regular (thicker and more structured), and whether the weld is flat (process level).
Third, check the installation quality After installing the security door, the user must first check the keys, insurance policies, invoices and after-sales service orders and other accessories and information and anti-theft door manufacturers to provide the same accessories and information, do not appear less key Happening. When the lock that has been installed on the door body is opened with a key, the lock cylinder should be easy and flexible, and there should be no jamming; the door should be flexible and free from jams, abnormal sounds, etc. during the process of opening 90 degrees.
Buy security door, put the following three
First, choose the appropriate external dimensions Consumers should choose the right anti-theft security door according to the actual requirements of the size of the room door, opening direction, color pattern.