1. Security considerations
First, an important role is to keep the lock with the door to be closed, will not easily be opened, that security role. Influencing factors include the firmness of the lock, anti-disassembly ability, anti-collision ability, anti-drilling ability, anti-smashing ability and anti-technical opening ability. The anti-theft capability of the lock must be considered before purchase, especially as a lock on the villa door and the entrance door. Use a high-security lock. The modern popular mortise lock, the lock body is hidden inside the door leaf, and has good anti-theft performance.
The mutual opening rate is another important factor in terms of safety. The national standard requires that each time it is opened 1,000 times, there must be no more than two times of opening. This requirement is not high. In theory, the ordinary six-bead key can be achieved. The impact of the mutual opening rate is multi-faceted. There are not only technical factors but also production management factors. In addition to considering the technical theoretical data provided by the merchants, it is also necessary to understand the technological solutions in production, especially those with special requirements. Industrial locks, the mutual opening rate should be controlled, otherwise there will be a phenomenon that the next office can open.
2. Applicability considerations mainly include door use (function), door thickness and opening direction
Doors are generally divided into gates (entrance doors), doors, bathroom doors, access doors. Locks with different functions are selected according to their needs. Some of the door openings are relatively large and require two door leaves. One of the doors needs to be equipped with a false lock (a type of decoration that only has a handle, a panel, etc., no lock body and lock cylinder, and does not have a lock function). Respond to the lock on the other door to form a pair of decorative fake locks.
The different opening directions of the doors also correspond to different locks. Standing outside the room, facing the door, the hinge on the left is the left door, the hinge on the right is the right door; the door is opened outside the room for the outside door, the door opens to the room is the inside door, usually within the domestic door Mainly. In this way, the door is generally divided into four types: the left inner door, the left outer door, the right inner door, and the right outer door. Write down your door opening before you buy, you can achieve twice the result with half the effort.
The thickness of the door is generally between 35-50mm. If the door is too thick or too thin, some parts must be changed and special ordering is required. Knowing your door thickness before buying is also an important step.
3. Factors in interior decoration style
It is no longer an era of satisfying the problem of food and clothing. When decorating, they usually have different styles, such as modern and simple, European antique, pastoral style, luxurious and rich, etc. In order to maintain the harmony with the style of the living room, it is required to adopt the corresponding style of locks. In order to achieve the desired decorative effect.
4, personal consumption concept, directly affecting the purchase of lock products
Modern locks pay more attention to decorative effects, and surface treatment and color become a highlight of choice. However, as a durable consumer product, it is necessary to consider the age and use effect, etc., the surface of the generally bright alloy material treatment has obvious discoloration and aging after about one year. Those who are striving for perfection may change their new styles immediately, and from a functional point of view, they can generally reach a service life of five years. In addition to stainless steel, other materials are unlikely to achieve a 5-year fade-free effect. Domestically, the appearance is more important, and foreign countries pay more attention to the performance of products. After you understand your consumption concept, you can easily choose when you choose a product.
5. Economic capacity considerations
Due to the difference in process and decorative effects, there are significant differences in product prices. When purchasing, you should also consider the range of prices you can afford.
6, product service considerations
Locks are important products for both decoration and safety. Especially for occasions with high safety requirements, you must choose a good brand and give yourself a safe home.
The main factors to consider and choose when purchasing:
1. First check the materials prepared before we purchase, and meet the expected expectations. Focus on safety performance, use occasions, door opening direction, and whether the door thickness is reached.
2, through the contrast observation, choose the appropriate style, color.
3. By using the sound to be turned on, use a lock with good function;
First use the key, try to open 1-2 times, to see if the rotation is flexible. Check whether the function of the product is reliable and flexible. You should select more than two products for comparison check. You should also check the insurance organization of the product. It is recommended to test each lock at least three times.
Observe the appearance quality of the product, including whether the lock head, lock body, lock tongue, handle and cover plate parts and related parts are complete, whether the surface color of the plated parts and painted parts is bright and uniform, whether there is rust, signs of oxidation and damage Observe if there is any necessary lubricant inside the lock body.
Then check the tooth condition of the key, such as five spoon teeth, each key should have not less than three different key teeth, while the first tooth and the fifth tooth should try not to choose the deepest key tooth, which is good for key insertion. Pulling is not easy to break.
4. Material selection: There are four kinds of materials used for general locks, which are selected according to the needs of use.
From a durable point of view, the best material should be stainless steel, especially as a surface material, the more bright it is. It has good strength, strong corrosion resistance and constant color. Stainless steel can be mainly divided into ferrite and austenite. Ferritic stainless steel is magnetic, commonly known as stainless iron. It takes a long time, and the environment is not good, it will rust. Austenitic stainless steel is difficult to rust.
Copper is one of the widely used lock materials. It has good corrosion resistance and processing properties, and its color is gorgeous. Especially the copper forged handles and other locks are decorated with smooth surface, good density, no air holes and sand holes. It is both strong and rust-proof. It can be used for plating various surface treatments such as 24K gold or gold, which is magnificent, noble and generous, adding a lot of color to people's home.
Zinc alloy materials have lower strength and rust resistance, but have the advantage of being easy to make parts with complex patterns, especially for pressure casting. The locks of the more complex patterns seen in the market are most likely made of zinc alloy.
Aluminum or aluminum alloy, ordinary aluminum alloy (except aerospace) is soft and light, with low material strength, but easy to form. stainless.
Steel, good strength, low cost, but easy to rust, generally used as the internal structural material of the lock, not suitable for external decorative parts. There are also some inferior locks made of steel, which are cheaper.
5, choose the appropriate surface treatment: the current popular surface treatment is generally divided into ordinary electroplating, multi-layer composite electroplating nickel treatment, electroplating chrome treatment, color separation plating, imitation gold gold treatment, gold plating treatment. PVD processing and more. The best of them is PVD treatment, and the price is also the most expensive. The effect of gold plating is gorgeous, anti-corrosion performance is not high, you need to know your own needs before deciding to choose, so as not to achieve the effect.
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