Classification material of lock and its purchase method

1. Classification of locks:

As far as the door lock is concerned, the door lock, the bedroom lock, the passage lock, the bathroom lock, etc. according to the purpose; the ball type lock, the handle lock, the mortise lock, the lock, etc. according to the shape. The ball lock and handle lock have three functions: lock, handle and ball touch. To install a door handle, it is necessary to install a door handle.

1.1 Household door lock: It is used for insurance safety, so it is also called insurance lock or anti-theft lock.

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

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

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

2, the material of the lock

The lock materials mainly include copper, stainless steel, zinc alloy, steel, aluminum or aluminum alloy.

2.1 Copper: It is the most widely used, has good mechanical properties, good corrosion resistance and processing performance, bright color, smooth surface, good density, no porosity, and trachoma.

2.2 Stainless steel: Durable, the more you use it, the brighter it is. Good strength, strong corrosion resistance and constant color.

2.3 Zinc alloy material: The strength and rust resistance are poor, and it is easy to make a lock with a complicated pattern.

2.4 Steel: good strength, low cost, generally coated, easy to rust.

2.5 Aluminum or aluminum alloy: Ordinary aluminum alloy is soft and light, with low strength and easy to be formed.

3, the choice of locks

3.1 To choose the copper core, but some of the core is plastic, only a layer of copper on the core.

3.2 All copper nickel plating and iron nickel plating have almost the same appearance, but the price difference is very large. Generally, the whole copper is silent, the iron is not silent, the whole copper is fine, and the iron work is rough.

3.3 When the ball type is installed, if the eccentric core is not in place, it is easy to cause problems.

3.4 The fastest selling now is the handle lock, the ball lock is out of date.

3.5 The smaller the sound, the better the sound.

3.6 From the shape of the key, the pit-shaped key trigger is safer than the tooth-shaped key, and the pit-shaped key must be lost to the original factory.

3.7 The more square tongues, the better the safety.

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

3.9 First check whether the product packaging logo is complete (including the implementation of standards, grades, company name, address, production date), whether the packaging is firm, and whether the manual matches the product.

3.10 Observe whether the lock head, lock body, lock tongue, handle and cover plate parts and related accessories are complete, whether the surface color of the plated 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 should be selected for comparison.

3.12 When purchasing a two-way lock product, the inner and outer locks must be tested with all the keys.

3.13 should also check the insurance of the product, it is recommended to try each lock at least three times.

3.14 Select the trivial according to the use environment, such as dry and wet, door structure, thickness, left or right open, open or open.

3.15 Try to choose the key with more teeth, because the more the key teeth, the greater the difference, the lower the mutual opening rate of the lock.

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