[ChinaGoodWood.com] when choosing high-quality security doors, we must master the quality identification method of security doors, otherwise we will be at a loss in the process of purchasing. How to identify the quality of security doors?
The following is a detailed introduction to the identification of the quality of security doors, and security door maintenance knowledge.
1. Class standard: security level of security level of security level of security level of security level of security level of security level of security level of security level of security level A, B and C can be divided into the highest performance of security level C, the second level B and the lowest level A.
The majority that we see in building materials market is A class security door, suit to use commonly family more.
2. Check the filling materials: now the more standard filling materials are foaming agents, which can be used for insulation and sound insulation. The disadvantages are poor fire protection performance,Door Jamb but there is no problem to achieve anti-theft effect.
Better still is slag wool.
Manufacturers when buy indicate the best with what kind of filling material, have a look at when installing security doors, generally on the cat’s eye from door plucked can see what’s in it, if some cat’s eye is well, and it is not down, can see in door lock.
If you find that the filling is not correct, you can refer to the manufacturer accordingly.
3. Check the steel plate: although the security door is made of steel plate on the surface, the steel plate and steel plate are different.
The provisions of the state, security door plate thickness to 1 mm, but some tiny thickness of door of guard against theft that you never even, only 0.4 mm, thin plate loses the significance of guard against theft, with a pry things started.
In addition, the steel plate of the security door should be cold-rolled.
Cold rolled sheet has good stretch and toughness, but the price is more expensive, so some manufacturers use hot rolled sheet to save cost.
The easiest way to identify a burglar door is to knock on the door with your hand.
4. A good lock is not a lot of lock points:Door Jamb Wholesale many people who sell security doors say that they have more lock points when selling security doors. In fact, this is just a front to attract customers.
A really good lock is not the more locking points the better. There is no essential difference between 4 locking points and 10 or 20 locking points.
No matter how many lock points there are, the center is on the lock core, the lock core is broken, no more lock points are useless.
Lock qualified security doors generally use three-way lock, not only lock lock lock, up and down horizontal bar can be inserted lock, the door to be fixed.
5. Process quality: remind that special attention should be paid to check whether there are welding defects, such as open welding, non-welding, leakage welding, slag inclusion, etc.
See whether the door fan and door frame cooperate compactly, whether the clearance is even and consistent, whether the opening is flexible, whether all joints are compactly, whether the paint plating is even and firm, smooth, etc.
High-quality security doors have rubber seals on the door frames, so they don’t make a sharp metal impact when closing.
6. Beware of renovation door traps: buy security doors and avoid renovation door traps. Some small stores selling security doors on the street will recycle some old security doors and sell them after renovation.
Watch the process of handing in your keys.
In general, new security doors packing is in good condition, installation workers in front of the customer packaging, keys inside the package, the key of packaging is complete, in front of the customer to pack lock core, locked after, again send keys to the client.
If the door’s packaging itself is damaged and the key is in the worker’s pocket, it could be a refurbished door.
Best customers into regular home city to buy security doors, because regular city sales security doors must be approved by the public security bureau TeHang division, and city of general requirements to merchants to provide proof of related sales security doors.
In addition, you should also check the production registration approval, quality verification certificate, inspection report, fire prevention inspection report, sealing inspection report, etc.
7. Be careful to buy below 700 yuan: at present, the 1mm thick steel plate panel on the market is 7,200 yuan per ton, and the door frame hot-rolled steel plate is 6,500 yuan per ton.
If meet the national standards, do a security doors need steel cost is 500 yuan, plus locks, filling material, paint, etc, the cost price is generally not less than 700 yuan, qualified security doors and frame should be in more than 60 kg weight, less than that of door of guard against theft that price and short weight, consumers need to be careful to buy.
How to maintain the family security doors, security doors 1 protective film on the surface of the protective film on the installed one month must tear, such as have the sun to the door to torn off immediately, or it will damage the paint.
2. Use methods of A, B and C locks B keys can be provided to the installer.
After the installation is completed (after the decoration and acceptance is qualified), the owner only needs to insert the C key into the lock core to rotate 360 degrees, and the B key will automatically fail. The A and C keys can be used as usual.
The owner should not attempt to open it with the C key before checking in.
Points 3, at ordinary times in the hinges,Door Jamb Factory locks and other open movement drops of oil on maintenance and maintenance 4, lock to disable the vegetable oil, lubricating oil of usable drip into the open is not flexible, such as a pencil lead powder, or check lock, lock connection points up and down, and door lock whether rusty phenomenon.
If there is rust, a few drops of oil can be dripping in the upper and lower connection lock point and lock hole, etc., after multiple opening.
5. The paint surface of the burglar door shall pay attention to prevent the scratches and scratches of hard objects and sharp objects. When cleaning, use water drops into the cleaning cleaning clean wet towel and wring it dry and scrub it.
6. When entering or leaving the house, please close the door at any time, sleep or go out, please lock the top and bottom of the earth with the key, so as to enhance the anti-pry function.