1. The material of the door panel
1, stainless steel door
Advantages: The anti-theft performance is strong and durable, good sound insulation, good corrosion resistance, good texture, long-lasting color, and never rust.
Disadvantages: The cost-effectiveness is not high, the style is more traditional, mostly silver-white appearance and color are a bit monotonous, which makes people feel stiff.
Advantages: good sound insulation, plasticity, good corrosion resistance, and not easy to rust, because zinc alloys are protected on the surface for forming a layer of passivation. Good decorative, bright colors, to meet different styles and long -demand life, up to 15 years.
Disadvantages: Poor corrosion resistance, low melting point, melting at 385 ° C, which is easy to cast. The strength of the peristalsis is not high, spontaneous and deformable, easy to aging, and the dissolution of zinc, giving, and gold will be low as warm as warm.
3, cast aluminum doors
Advantages: high-end atmosphere, novel and beautiful shape, short production cycle, is a variety of one-time casting style, maintenance costs, cost cost Low, flame -retardant pollution resistance, oxidation, corrosion resistance, daily maintenance only needs to be wiped with wet cloth.
Disadvantages: higher prices, lower than copper doors, and higher than stainless steel doors. In order to improve the performance of the cast aluminum door, the production process is more complicated.
4, copper door
優點：銅紋條理清晰、大氣，整體看起來協調、立體感好:不易彎曲變形，耐腐蝕，密度大，隔音效果好;防盜性能Strong, with high -level anti -theft locks, insurance bolt, etc. At the same time, no lock core is seen outside the door, equipped with built -in locks.
Disadvantages: The price is not high, the price is expensive, and the bumps are prone to scars.
2. Fill in the door Things
1, honeycomb paper
Honeycomb paper is a material shape learned from the sealing hexagonal honeycomb according to the enlightenment of bionics. It has very good mechanical characteristics. Essence
Advantages: The materials are cheap, light weight, high strength, smooth surface, not easy to deform, good sound insulation effect, no pollution, in line with modern environmental trends.
Disadvantages: Wet weather, paper bees will be slowly corroded, affecting the sound insulation and warmth of the door.
2. Aviation aluminum foil
In fact, it is a honeycomb-shaped aluminum foil. The aluminum foil is also good or bad, some are thicker and some are thinner. Verify its method and press it with your palms. If you can make a slight sound, it is aviation aluminum foil.
Advantages: It has strong corrosion resistance, aging resistance, no cracking, no foam. Flame retardant heat insulation, sound insulation, and shock -proof effects are not bad. Non -toxic and harmless is the most environmentally friendly.
Disadvantages: If the glue is not good, it will generate noise and the price is high.
Some of the internal structures are made of very dense keels arranged horizontally and vertically, and some are made of steel mesh throughout the interior. space, and then use a foaming machine to break into the gaps. After a while, it will completely expand, so the overall weight of the door is thicker and stronger. Since the combined polyether uses water as the foaming agent, it is green, safe and environmentally friendly.
Advantages: good sealing, warmth retention, good sound insulation effect, high temperature resistance above 200°C, and very long service life.
Disadvantages: poor flame retardancy, flammable at high temperatures, and can produce toxic gases.
4. Rockwool
High temperature It is made by melting into fibers, adding an appropriate amount of binder, and solidifying processing.
Advantages: impact resistance, heat preservation, heat insulation, sound insulation, moisture-proof, affordable price.
Disadvantages: Not cost-effective and expensive. Outdoor security doors that cannot be used directly are prone to deterioration and decay.
3. The main lock body and hinge of the entrance door
1. Main lock body
The main lock body is made of solid 304 stainless steel. It is made of solid 304 stainless steel and has logos written on the main lock body, which is very conspicuous.
2. Hinge
It is the connecting hardware that fixes the door and door frame p>
(1) The anti-theft function is more chain
There is no way to open the lock hole in the comparison of the anti-theft door. 2) Bright hinge
The door is not limited by angle when the door is opened and closed, and it is more convenient to use without angle. Necessary sale
(3) dark hinge
High value, high price There are some disadvantages. The opening and closing of the door cannot be opened for about 90 °. Life.
4. Choice points of the entrance door
1. See the anti-theft level
Every entryThe doors all have nationally certified anti-theft grade steel seals, which are divided into four levels: A, B, C, and D. Only Grade A is recommended. Grade A steel seals are generally printed on the inner doors.
Hinge edge.
2. Look at the lock cylinder level
The security level of the lock cylinder is divided according to national standards For Class A, Class B and Class C, Class C lock cylinders are the best, as follows:
(1) A-level lock core, anti-opening technology for 21 minutes, anti-drilling >10 minutes, anti-sawing >5 minutes, anti-prying 210 minutes, anti-pull >10 minutes, anti-impact >10 minutes
(2) Class B lock cylinder, prevent technical opening for 25 minutes, anti-drilling for 215 minutes, anti-sawing >5 minutes, anti-prying >15 minutes, anti-pull >15 minutes, anti-impact 215 minutes
(3) C-level lock core, anti-technical opening for 210 minutes, anti-drilling for 230 minutes, anti-sawing >30 minutes, anti-pulling ≥30 minutes, anti-impact >30 minutes
3. Look at the sound insulation performance
The sound insulation must be good, at least if you speak in the entrance hall, people outside cannot hear you.
4. Look at the material thickness
The material can be galvanized plate, real copper plate, Copper-plated plates and cast aluminum plates are both anti-theft and more beautiful. The thickness of the door panel and door frame metal material is more than 2mm (steel, copper, alloy plate thickness), the thickness of the door body and door leaf is more than 20mm (high-end entrance door 50-90mm), the hinge thickness is more than 1mm, and the length is more than 90mm.
5. Fire resistance
The fireproof performance of the entrance door is also very important. Choose a qualified fireproof door, and carefully check its fireproof grade, fireproof time, material quality and other indicators to ensure the door\’s Fire protection performance complies with relevant local standards.
6. Anti-theft performance
In The anti-theft performance of the door is also a top priority. Doors with anti-theft designs such as independent lock core anti-pry functions and thickened steel plates should be selected to improve the security and resistance of the door.
7. Material selection
The material of the entrance door should be strong and durable. It has the functions of fire prevention, anti-theft and sound insulation. Currently, the entrance door materials on the market mainly include solid wood doors, steel doors, color steel doors, aluminum alloy doors, etc., which are suitable for different needs and decoration styles.
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