สุดยอดคู่มือประตูรักษาความปลอดภัยโลหะ

เวลาอ่านโดยประมาณ: 10 นาที
Definition of the security ประตู

The full name of the security door is “security door“. It has both burglary and security properties. By the “security general technical conditions” provisions, qualified security doors in 15 minutes using chisels, screwdrivers, crowbars, and other ordinary hands I tools and portable power tools such as hand drills can not pry open, or open up an opening in the door 615 square millimeters, or in the locking point, 150 square millimeters in a semicircle open a 38 square millimeter opening. And security doors. The locks used on them must be special locks for security doors with anti-drilling functions that have been tested and qualified by the Ministry of Public Security testing center. anti-theft] can be made of different materials, but only to meet the standard test pass, to receive the door’s security products quasi-production certificate, can be called a security door.
The entrance door is the first door into the house, also called the entry door. It is the first gate into the house, of course, its anti-theft performance should be higher. So the entrance door is also called security doors, mainly pure steel entrance doors, stainless steel doors, armored doors. At present, the commonly used entry doors are armored security doors (security doors for short).
Composition of the security door

Heart security door has a door frame, door, hardware, cat’s eye, doorbell five parts. Among them, the door frame is divided into: in the installation, external door frame. The door has a front panel, back panel, filler (rock wool, honeycomb paper, etc.)
NSype of the security door
1. Today, there are many types of security doors on the market, by the Ministry of Public Security, promulgated the standard GB25-92 “security General Technical Conditions”, security doors can be divided into fence type security doors, solid doors, and composite doors 3 kinds.

The most common type of security door is the welded steel tube door, which has the advantage of being ventilated, lightweight, aesthetically pleasing, and relatively inexpensive. The upper part of the door is made of steel tubes or steel plates and the lower part of the door is made of cold-rolled steel plates, which are locked with multiple locking points to ensure that the door is pry-proof. However, it is not as effective as a closed-door in terms of security.

The solid door is made of cold-rolled steel plates extruded from the door, all of which are 1.2 mm and 1.5 mm thick, with strong impact resistance. The door is filled with rock wool insulation and fireproof material inside the double-layered steel plate, which has the functions of anti-theft, fireproof, heat insulation, and sound insulation. General solid security doors are installed with cat eyes, doorbells, and other facilities.

The composite security door is a combination of a solid door and a barred security door, which is anti-theft, fly-proof in summer, ventilated, and cool in winter. The door is a combination of a solid door and a barred door.
2. According to the level of security is divided into four levels, respectively A, B, C, D four levels from high to low, in descending order, four levels
- Grade A anti-theft requirements
Grade A security doors: letter code J, anti-damage time shall not be less than 30 minutes, the number of locking points between the door frame and the door fan is not less than 12, the thickness of the steel plate of the door frame shall be selected 2 mm; thickness of the outer/inner plate. The permitted deviation is only 0.17 mm, at least only 0.06 mm.
- Grade B security requirements
Grade B security door: letter code Y, anti-damage time shall not be less than 15 minutes, the number of locking points between the door frame and the door fan shall be not less than 10, the thickness of the steel plate of the door frame shall be 2 mm; thickness of the outer/inner plate 1.00 mm/1.00 mm
- Grade C security requirements
Grade C security doors: letter code B, anti-tampering time shall not be less than 10 minutes, the number of locking points between the door frame and the door shall not be less than 8, the thickness of the steel plate of the door frame shall be 1.8 mm; thickness of the outer/inner plate 0.80 mm/0.80 mm
- Grade D security requirements
Grade D security doors: letter code D, anti-tampering time not less than 6 minutes, not less than 6 locking points between the door frame and the door leaf, the thickness of the steel plate of the door frame should be 1.5 mm; thickness of the outer/inner plate 0.80 mm/0.60 mm
Style of the security door
- Single security doors

2. Double security doors

3. Unit security doors

NSaterial ของ the security door
Security doors are divided into five main types of material: steel, aluminum, steel and wood, stainless steel, and copper, which have their characteristics in terms of quality and performance, and naturally, the price is not the same.
1. Steel
It is arguably the most common and most used by the people in the market. Most of the security doors that people are familiar with belong to this series. The door is cheaper and more reasonably priced, and its sales account for more than 90% of the total market sales. The disadvantage of this type of door is the hard lines of appearance, it is difficult to integrate with the modern interior decoration.
2. Aluminum alloy

The aluminum alloy used in this door is different from the ordinary aluminum alloy doors and windows we have seen, it has a high hardness and a bright color.
It is harder and brighter, and decorated with floral patterns to give a sense of gold and splendor, and is a mid-range security door. Because this door is not easy to fade, so also has a certain consumer group.
3. Steel-wooden

This is a kind of door that can be matched with the interior decoration, generally, by the user’s request, the security performance using the middle of the steel plate to achieve, the manufacturer can choose different colors, wood, lines, and patterns according to the user’s request and the interior decoration into – body, no longer like the steel door as cold incongruous. Therefore it is also more expensive than steel security doors.
4. Stainless steel

Stainless steel security doors] are strong and durable, with higher security. Market stainless steel security doors come in many colors, silver, and white, yellow titanium.
It is best to choose a larger manufacturer that is close to the installation site to make after-sales service more convenient.
5. Copper

Most copper security doors combine traditional security and entry doors into one, with advanced styles and good performance in terms of fire, corrosion, pry, and dust resistance. In terms of material, copper security doors are the best, and in terms of price, they are also the most expensive, with the basic prices seen on the market is over 10,000 yuan, with the most expensive reaching hundreds of thousands of yuan. It is mainly used in banks and other financial institutions or high-class residential villas.
How to select the security door
1. Ask the seller to show the relevant departments of the “test certificate”, check whether it meets the national compulsory standard GB17565-1998 technical requirements.
2. Remove the cat’s eye, doorbell box, or lock handle, check the internal structure of the door body. There should be several reinforcing bars inside the door so that the front and rear panels of the door are organically connected. It is best to have asbestos and other materials with fireproof, thermal, and sound insulation functions as fillers inside the door.
3. The security door closed resistance is too large, but also in the activity of the latch tongue coated with a little lubricant.
4. Check the quality of the production process, whether there are welding defects, the door and the door frame with the fit is dense, etc.
5. Paw-paw security door weight, regular security door weight not less than 40 kg.
How to check the security door
1. Check the steel plate: national regulations, the thickness of the security door steel plate to reach 1 mm, but some companies to reduce costs, some only use 0.4 mm of steel plate, plate thin to lose the significance of anti-theft. According to the security door business, consumers test the steel plate, you can press the steel plate in the door, if the steel plate is pressed down, indicating that the quality of the security door is not good.
2. Check the foot: qualified security doors under the foot using stainless steel materials, but some small workshops to reduce costs, even with stainless steel. I visited Nanchang’s new more security doors, the boss introduced a tip to identify the suction stone on the lower step, if the suction stone sucked hard to take away, indicating that the lower step material is not qualified.
3. Check the quality of the product’s workmanship, whether there are welding defects, the door and the door frame with the door is dense, etc.
4. Good lock not only lock point more: locks qualified security doors generally use three-way locks, not only door locks lock, up and down the horizontal bar can be inserted into the lock, the door is fixed. Often some businesses use lock more to attract consumers a good lock is not the more lock points the better, the lock core is not anti-theft, and then more lock points are useless.
การซ่อมบำรุง of the security door
In cold areas, security doors “winter” problem is also very important, because the cold areas of the indoor and outdoor temperature difference are very large, in the hot and cold water flow is very easy to make the security] lock core moisture, and then ice, to avoid this situation, before the arrival of winter, we should be the appropriate amount of two drops of anti-freeze oil in the lock core, after the winter and then cleaned with gasoline or diesel. Do not use vegetable oil as a lubricant for the lock cylinder.
So many security doors, it’s really useful, thank you