The classification of the lock material and its purchase method

1, the classification of locks:

In terms of door locks, door locks, bedroom locks, channel locks, bathroom locks, etc. are used depending on the purpose; ball-shaped locks, handle locks, mortice locks, and locks are used according to the shape. Ball locks and handle locks have three functions: lock, handle, and touch ball. Stay locked to install door handles.

1.1 door locks: play a safe role, it is also known as insurance locks or anti-theft locks.

1.2 channel lock: the role of the handle and the impact of the door, suitable for kitchen, living room, living room, dining room and children's room.

1.3 Bathroom lock: It can be locked inside, and it can be opened with a key outside the door. It is suitable for bathroom or bathroom.

1.4 bedroom lock: locked in the inside, the outside must be opened with a key, suitable for bedroom and balcony doors.

2, the lock material

Lock materials mainly include copper, stainless Steel, zinc alloy, steel, Aluminum or aluminum alloy.

2.1 Copper: The most widely used, good mechanical properties, corrosion resistance and processing performance are good, bright color, smooth surface, high density, no porosity, trachoma.

2.2 Stainless steel: Durable, brighter and brighter. Good strength, strong corrosion resistance, and constant color.

2.3 Zinc alloy material: poor strength and rust resistance, easy to make complex pattern locks.

2.4 Iron and steel: Better strength, lower cost, generally coated, easy to rust.

2.5 Aluminum or Aluminum Alloy: Common aluminum alloys are soft, light, and have a lower strength and are easier to shape and shape.

3, the purchase of locks

3.1 To select the copper core, but some of the core is plastic, only covered with a layer of copper at the core.

3.2 All-copper nickel plating and iron-nickel plating are almost the same in appearance, but the price difference is very large. Generally, the copper strips are silent, the iron triads are not muted, the copper triads are fine workmanship, and the iron triads are relatively rough.

3.3 When the ball type is installed, such as eccentric core, etc., it is not easy to install, and it is easy to go wrong.

3.4 The fastest selling now is the handle lock and the ball lock is obsolete.

3.5 The smaller the sound, the better.

3.6 From the key shape, the pit key has a higher security than the dental key, and the pit key must be lost when the key is lost.

3.7 The more square-headed tongues, the better the security.

3.8 Enterprises with high reputation, stable quality and good after-sales service should be selected.

3.9 First, check whether the product packaging is complete (including the implementation of standards, grades, business name, address, date of production), whether the packaging is firm, and whether the instructions are consistent with the product.

3.10 Observe whether the locks, locks, lock tongues, handles, and components and related parts are complete, and whether the surface color of the electroplated parts and painted parts is bright and uniform and there are signs of rust, oxidation, and damage.

3.11 Check whether the product use function is reliable and flexible. Two or more controls should be selected for comparison.

3.12 When buying a two-way lock product, you must use all keys to lock the inner and outer lock switches.

3.13 The product should also be inspected for insurance. It is recommended to try each lock at least three times.

3.14 choose the use of environmental protection equipment, such as dry and wet, the structure of the door, thickness, left open or right open, open or open.

3.15 Select as many keys as possible to lock the teeth, because the more teeth, the greater the difference, the lower the lock open rate.