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2023.3.29
Cast aluminum doors are a type of entryway that uses cast aluminum as the primary material. Cast aluminum is produced by pouring molten aluminum into a mold, allowing it to cool and solidify, and then removing the finished product. These doors are known for their durability, low maintenance, and corrosion resistance, making them an excellent choice for various applications. Today, let’s take you through the reasons for the price difference between cast aluminum doors.
Durability: Cast aluminum doors are robust and can withstand harsh weather conditions, heavy usage, and impacts. They are less likely to dent, warp, or corrode compared to other materials like wood or steel.
Low maintenance: Aluminum doors require very little maintenance, as they do not rust, rot, or fade over time. Occasional cleaning with soap and water is typically sufficient to keep them looking new.
Corrosion resistance: Aluminum has a natural oxide layer that protects it from corrosion. This makes cast aluminum doors suitable for coastal areas with high humidity and salt exposure.
Design flexibility: With casting, intricate designs and patterns can be easily incorporated into the door, allowing for a wide range of customization options.
Lightweight: Cast aluminum doors are lighter than steel or wrought iron counterparts, making them easier to install and handle.
Energy efficiency: Aluminum has good thermal conductivity, which helps in maintaining temperature stability inside the building. Some aluminum doors come with insulation, further enhancing their energy efficiency.
1. Outer plate material and process
Ordinary cast aluminum doors use aluminum ingots with low standards or unreasonable proportions. The color is pure white in a short period of time, and rust spots may appear after oxidation for a slightly longer period of time.
Made of high-quality alloy aluminum ingots (aviation aluminum), the color is pure white, without impurities, with stable structure, strong performance, oxidation resistance, corrosion resistance, and good adhesion of the surface paint, without causing paint peeling problems.
The same is true of cast aluminum plates, with different processes and different qualities. The traditional and old-fashioned process uses sand casting. Compared to vacuum precision casting, the aluminum plate thus cast has a lower density and a slightly weaker strength.
Using a 100 kW motor negative pressure system (vacuum casting assembly line) for die casting, the molecular structure of the aluminum panel is more compact than that of ordinary manual sand molding.
2. Inner plate material and process
The common cast aluminum doors on the market are mostly made of steel plate splices or solid wood composites. The cost of steel plate spliced inner panels is low, but when it comes to appearance, grade, and matching with the overall home style, it is slightly inferior. If the surface of the solid wood composite backboard is generally made of construction polyester chemical paint, this type of armored door has a smooth and three-dimensional appearance, and the surface is highly toxic due to the residual formaldehyde from the construction polyester chemical paint, which is not environmentally friendly.
The inner panel is generally made of carbonized logs of precious tree species imported from North America, Africa, and Southeast Asia, such as white wax, red oak, Myanmar teak, ebony, cherry wood, or fashionable and environmentally friendly panels. The surface is wiped with natural vegetable oil – wood wax oil, with a natural and noble texture and a faint log fragrance. Moreover, the log panel is made of high-grade log wood materials that are environmentally friendly and undergo a 200 degree long time deep carbonization (heat, moisture, crack, and deformation resistant) process. The 3 degree armor assembly structure (steel core, panel, and clip edge) ensures stable structural performance and is not prone to deformation and cracking.
3. Hinge material
Nowadays, cast aluminum doors are mostly made of ordinary steel with six dimensional adjustable hinges or heaven and earth hinges. In terms of material, ordinary steel hinges are formed by pressing in a mold. This type of hinge is formed by forcibly pressing and deforming the metal material, and the structure of the material itself has undergone changes. Therefore, this type of hinge is prone to sagging, bending, deformation, and even jamming.
The patented product – high pressure precision cast 304 stainless steel seven dimensional hinge is adopted. Due to the fact that the molecular structure of the hinge casting material itself has not undergone any changes, this hinge has the characteristics of super load-bearing, non deformation, and non sagging, with a single hinge bearing up to 400 kilograms.
4. Lock body and cylinder
Ordinary armored doors generally use a spring driven lock body, which has unstable performance and is prone to mechanical failures. A silent gear driven lock is used, which belongs to seamless transmission, and the mechanical structure operates smoothly with guaranteed safety.
The ordinary armored door lock core generally adopts a marble structure lock core or a blade lock core, and adopts an imported three-dimensional structure lock core, that is, a marble structure+blade structure+magnetic structure. It fully complies with the EU safety level standards, and the technical opening may be infinitely close to zero
5. Sealing
The thickness of the door leaf is 90-95 ㎜, and the unique door leaf beveling process is used to make the door leaf more flexible and free to open and close. Especially, the door seam is smaller than that of ordinary armored doors, reducing air circulation; The product adopts a special adhesive strip imported from the UK Q-LON (the main material is ethylene propylene diene monomer, without peculiar smell, with a smooth and beautiful surface, oxidation and corrosion resistance, high temperature resistance of 100 ℃, low temperature resistance of – 45 ℃, and no cracking. It has a long service life and will not age and deteriorate for 50 years), a four degree four dimensional airtight system; It not only reduces the noise of closing the door, but also tightly insulates the indoor and outdoor air, avoiding the suffering of external noise and changes in temperature difference in the outdoor environment, achieving complete isolation of indoor and outdoor air; The steel core uses aviation aluminum foil as the filling material (aviation aluminum foil is known as the “king of thermal insulation materials” and is a new generation of thermal insulation, fire prevention, and sound insulation materials);
The sound insulation performance of the product reaches the national level 3 standard (- 33 decibels), and the thermal insulation performance reaches the national level 6. It is a truly low-carbon energy-saving product;
General armored door leaf frames are generally surrounded by solid wood edge sealing technology, which is easy to crack. Dizhinuo uses ultra-strong hard space aluminum armor for edge closing, and then accurately locks and assembles with the door leaf steel core through double rows of precision mechanical screws.
6. Armor core
The steel core of ordinary doors and cast aluminum doors is generally made of ordinary galvanized steel plates, while the steel core of cast aluminum doors is made of special grade electrolytic plates for automobiles. The special electrolytic plates for automobiles have characteristics such as super hardness, oxidation resistance, and corrosion resistance.
7. Paint finish
The metal paint surface material is plastic foundation make-up paint produced by the world’s top chemical coating manufacturer Akesu Company in the Netherlands. It is painted in six degrees by hand, and polished with fluorocarbon paint imported from Germany. It has the characteristics of artistic beauty, environmental protection, oxidation resistance, corrosion resistance, UV protection, strong adhesion of surface materials, and color fastness for 30 years.
Buying a good house or apartment is not easy. Doors are not only the “facade” of your house, but also the most frequently used belongings in your home. Therefore, it is important to choose a good door with good quality and no worries at all. Be sure to shine your eyes, don’t be greedy for small bargains, and choose inferior or “counterfeit” products.