Disadvantages
1. Aluminum clad wood doors and windows profiles are mainly made of solid wood with poor stress. At the same time, solid wood is scarce and the price is relatively high.
2. The outer aluminum alloy of aluminum clad wood doors and windows only plays a protective role on the surface, and uses nylon fastening decorative solid wood, resulting in the strength and toughness of the aluminum alloy itself not being exerted.
3. Aluminum clad wood doors and windows the manufacturing process is complex, the equipment is expensive, the threshold is high, and the comprehensive cost is high.
Disadvantages
1. Wood-clad aluminum doors and windows are realized through aluminum alloy bridge breaking, and then hung with solid wood. The structure and technology are complex, and the technical requirements for production enterprises are relatively high.
2. From the production of profiles to the manufacture of doors and windows, the whole process of wood-clad aluminum requires high equipment Price, complicated technology and high project threshold.
The selection of raw materials for aluminum-wood composite doors and windows mainly needs to pay attention to the following aspects.
1. Wood. The wood on the inside of aluminum-wood doors and windows mostly adopts hard oak, oak, cherrywood and so on. After integrated processing, the material is tight and the nail grip is strong; The finger joint glue used is D3 Grade single component waterproof adhesive, it is not easy to cause warping deformation and the moisture content is stable; The moisture content of wood is strictly controlled between 10% and 14% during the production process. Oak, oak, cherrywood and other hard wood have beautiful appearance patterns and high mechanical strength. It has the characteristics of high corrosion resistance, high strength, moisture resistance, not easy to deform, good paint coloring performance, etc.
2. Aluminum. The aluminum material is aviation aluminum. Its advantages are: UV discoloration resistance, pulverization resistance, high dulling resistance, flawless surface, consistent color, high hardness, abrasion resistance, impact resistance, acid and alkali resistance, high flame retardant; ideal color effects can be obtained through various surface treatment methods.
a. Electrophoresis coating treatment is characterized by strong metal texture.
B. Electrostatic powder spraying, with rich color series and good durability.
c. Fluorocarbon spraying treatment, fine surface texture, excellent weather resistance.
3. Paint. The paint used for wooden doors and windows mostly adopts the special paint for European doors and windows. This kind of paint has the characteristics of corrosion prevention, waterproof, mildew prevention and insect prevention, its high permeability and UV protection performance can effectively protect the wood while showing the texture of the wood. The topcoat has high elasticity after film formation and is easy to maintain.
a. The paint surface has good elasticity and can change with the expansion and deformation of the wood surface. It can be used for a long time without cracking.
B. The texture is natural, which can more fully reflect the texture characteristics of the wooden surface and make the wooden characteristics revealed.
4. Hollow glass. There are mainly Channel aluminum double-Channel sealed hollow glass and adhesive strip hollow glass. It has high flatness, good light transmission, strong heat preservation and sound insulation, and is filled with molecular sieve within aluminum spacing strip, which can fully absorb the moisture between the two layers of glass, so that the doors and windows will not appear aerosol, Hydra Zen cream, different glasses can be selected according to different climatic conditions.
5. Hardware. The hardware of aluminum-wood doors and windows adopts well-known hardware accessories at home and abroad. Its material surface adopts three processes: chrome plating, zinc plating and immersion corrosion prevention metallic paint. It has high strength, strong toughness, wear resistance, strong versatility and weight capacity, it can meet the maximum self-weight of Casement 130KG; The three-dimensional adjustability is strong, which is convenient for the adjustment and maintenance of Casement; It is easy to operate, has various opening modes, hidden design, and has high safety performance. It has the advantages of flexible operation, advanced surface treatment technology, exquisite appearance, corrosion resistance, wear resistance, long service life, etc. It also has a variety of opening methods such as flat opening, upper suspension, push and pull.
6. Sealant strip. The adhesive strip used for doors and windows has excellent UV resistance, aging quality resistance, high and low temperature resistance, and is a high-quality door and window sealing material. Reasonable door and window system structure with high-quality raw materials can produce first-class door and window products.
