Security door expertise?

I wonder what kind of knowledge you want to know. Let me summarize it from the perspective of decoration.

Security door is the first "insurance" to ensure the safety of our lives at home. When choosing a door for decoration, we should pay attention not to choose any inferior door, so how can we distinguish the quality of a security door?

Security doors should also be paid attention to when purchasing. Security doors are divided into four grades: A, B, C and D, and Class A doors are commonly used. Its steel plate thickness is 2.0, and the lock core is a class C lock core. Then its closure consists of 12 locks. Class C lock core has the best safety.

When buying a security door. Some customers just started to look at the decoration materials when they set the fingerprint lock of the security door in advance. In fact, it is not recommended for customers to set it in advance, and it is not recommended for customers to buy it in advance at night, because the first-level door of the security door is a hook between heaven and earth, and some fingerprint locks cannot be used if a three-in-one lock is added. If you don't use it, it may be regarded as waste in the future. For example, the security door is Class A, and if you want to replace it in the future, the manufacturer of smart locks had better look at the hierarchical structure of door locks in advance, and then use their corresponding smart locks.

Honeycomb paper or rock wool is often used inside the security door, because it can play the role of sound insulation and heat preservation. Honeycomb paper is not ordinary honeycomb paper, but specially treated, so it plays the role of sound insulation.

Security door grade A steel plate is 2.0 thick. Generally, there are more Grade A courses. If some people need class c and d doors. Then the thickness of this steel plate is about 1.5.

What developers leave behind is the D-class door, and sometimes they don't even follow the level, so try to replace it. Another is that the lock left by the developer must be changed, because that lock is the lowest level A lock, and this security performance is the worst. For example, if there are 15 doors with Class A lock cores, it is possible to open the same doors with one key. This is the disadvantage of class A lock. Including class B locks does not rule out this phenomenon, so now the class C locks beyond class B and class C are all class A doors. If the developer says he doesn't want to change the door, he can change the lock core and replace it with the lock core of the C-class door lock.

There will also be some problems in the installation of security doors. Generally speaking, the conventional doorways will be made directly with expansion screws, but the standard doorways need to be smashed or trimmed in the installation process, because some doors are doorways of 1970, and if they are to be turned into doorways with a height of 2050, some walls will have to be smashed. At this time, bricklayers need to dock in advance.

In the installation process, the master will trim the door first, and then proceed to the next step. If you encounter some special walls, you can embed some iron sheets at the door and then weld them. After the door is installed, the tile union will grout it. Bricklayers can reserve some cement yellow sand when sticking tiles, and then grout the security door later. The general bricklayer's method of measuring the security door is also faster. If it is a standard size installation, it will take about a week.

Finally, talk about the price of security doors. Take Nanjing as an example. If a single security door is replaced by an A-class door, it can be completely installed around 2200. The price of two doors is more expensive than this, at least 1000 or more, or more than 3000.

The knowledge about the choice of security door for decoration is summarized here, hoping to give some reference to the owners who are renovating and avoid going into misunderstanding when purchasing security doors!