Case one

Content tips: plastic steel doors and windows are a new generation of door and window materials. Because of their high wind pressure resistance, good air tightness and water tightness, small air and rainwater penetration, low heat transfer coefficient, heat preservation and energy saving, sound insulation and heat insulation, and not easy to age, they are rapidly replacing steel windows and aluminum alloy windows.

1. doors and windows structure and classification:

1. According to the function of doors and windows, it is divided into: louver doors and windows, insulation doors, fire doors, sound insulation doors, etc.

2, according to the opening of doors and windows classification

(1) casement doors and windows: doors and windows open inward or outward.

(2) sliding doors and windows: door and window sash opening and closing by horizontal movement.

(3) Folding door: the door leaf can be folded together when opened.

(4) Turn the door and window: the door and window sash is opened and closed by rotation. The turning window includes upper hanging window, lower hanging window, middle hanging window, vertical turning window, etc.

(5) Spring door: A door equipped with a spring hinge will automatically close after opening.

(6) Other doors: including rolling shutter doors, lifting doors, upper doors, etc.

3. According to the materials of doors and windows, it can be divided into: wooden doors and windows, plastic doors and windows, aluminum alloy doors and windows, steel doors and windows, glass fiber reinforced plastic doors and windows, reinforced concrete, etc.

4. According to the position of doors and windows: doors are divided into outer doors and inner doors. The windows are divided into side windows (located on the inner and outer walls) and skylights.

Structure of 2. door leaf

1. Splice door: a door made of wooden boards. Sturdy and durable, mostly for the gate.

2, plywood door: the middle of the light skeleton, two sides of the plywood, fiberboard and other thin plate door. Generally for the interior door.

3. Paneled door: The door leaf is composed of a skeleton and a door core plate. The defender core board may be wood board, plywood, hard fiber board, plastic board, glass, etc. When the door core plate is glass, it is a glass door. When the door core is yarn or hundred pages, it is a screen door or a hundred pages door. Can also according to the need, part of the use of glass, yarn or hundred pages, such as the upper glass, the lower hundred page combination and so on.

shopping of steel doors and windows:

Plastic steel doors and windows are a new generation of door and window materials. Because of their high wind pressure resistance, good air tightness and water tightness, small air and rainwater penetration, low heat transfer coefficient, heat preservation and energy saving, sound insulation and heat insulation, and not easy to age, they are rapidly replacing steel windows and aluminum alloy windows.

1. Manufacture of plastic steel doors and windows. Plastic steel doors and windows are generally manufactured in factories with special cutting and welding equipment for plastic steel doors and windows. They are semi-automated and automated, and the quality can be guaranteed.

2. Structure of plastic steel doors and windows. Plastic steel doors and windows are made up of special western hard polyvinyl chloride (PVC) plastic profiles as the main material, plus off-duty hardware. The profile is a porous cavity, and the main cavity is lined with steel made of cold rolled steel plate to improve the strength of plastic steel doors and windows. Profile wall thickness should be above 2.5mm.

3. Buy plastic doors and windows.

(1) Pay attention to surface quality. The color of plastic profiles on the surface of doors and windows is bluish white or ivory white, clean, flat and smooth, with no scratches or bumps on the large surface, and no welding or fracture at the welding port. Good quality plastic steel doors and windows should have a protective film on the surface, the user will tear off the protective film before use.

(2) do not buy cheap plastic steel doors and windows. Good plastic steel doors and windows from the plastic quality, lining steel quality, hardware quality is higher, life can reach more than ten years. And cheap plastic steel doors and windows use profiles, calcium carbonate content of more than 50%, additives containing lead salt, poor stability, and affect human health. Lining steel is hot plate, the thickness is not enough, some even without lining steel, glass, hardware are also inferior products. The service life is only two or three years.

(3) Pay attention to glass and hardware. The glass shall be flat and free of water. There is no direct contact between the glass and the plastic profile, and there is a sealing strip close to the gap. The hardware is complete, the position is correct, the installation is firm, and the use is flexible.

what are the characteristics of aluminum alloy doors and windows:

(1) Good sealing performance: The aluminum alloy itself is easy to extrude, the cross-sectional size of the profile is accurate, and the processing accuracy is high. Optional waterproof, elastic, durability are relatively good sealing materials, such as rubber bead and silicone series sealant. In terms of profiles, various sealing strip fixing grooves have been completed together with the section in the extrusion molding process, creating favorable conditions for the installation of sealing materials.

(2) Light weight and high strength: Aluminum alloy materials are mostly hollow core thin-walled composite sections, which are convenient to use and reduce weight, and the sections have high bending strength. The doors and windows made are durable and have small deformation.

(3) strong corrosion resistance: aluminum alloy oxide layer does not fade, does not fall off, does not need painting, easy maintenance, no maintenance.

(4) beautiful appearance: aluminum alloy surface after anodic electrochemical treatment, can present ancient lead liver copper, golden yellow, silver white and other colors, can be arbitrarily selected, after oxidation bright and shiny. The window sash frame is large and can be inlaid with a large area of glass, so that the indoor light is sufficient and bright, which enhances the virtual-real contrast between the indoor and outdoor facades and makes the room richer.

how to modify, selection of solid wood door:

Solid wood doors are part of the high-grade luxury door and window decoration, which can be made of red spring wood, Thai teak wood or rosewood. Commodity wood door specifications are 80cm x 190cm, 80cm x 200cm, 90cm x 200cm several. The price of each door ranges from 1500 to 3000 yuan, and the high-quality teak wood door is as high as 3000 to 4000 yuan.

Innovative goods, as well as plastic steel doors. The frame is lined with steel and the outer skin is lined with plastic. The appearance is quite hardwood lacquer. Can be made into double doors, and attached door frame, each set of about 500~800 yuan, can also be customized according to the door size specifications measured accurately. The plastic steel door has the characteristics of heat preservation, heat insulation, noise reduction, sound absorption, flame retardant, etc., which is economical and practical, and has a gorgeous appearance.

how to buy wooden doors:

The most popular when the number of integrated wood process wooden doors. It is an international advanced wood processing technology that uses high-quality wood and recombines it after segmentation. It destroys the original cell structure of wood and forms a new structure, making it a new type of wood that is not easy to warp, deform, and crack to adapt to the temperature difference. And humidity changes. This kind of wood is especially popular in some developed countries such as the United States and Japan.

If a layer of rare tree species sliced veneer is pasted on the surface of the laminated wood, such as European beech, American red oak, etc., the extremely ordinary wooden door will be transformed into a noble, elegant, luxurious and high-level craft wooden door, making your room glorious.

the right to buy security door:

The key to the purchase of security doors is strong, there are three points for reference:

1, the structure should be reasonable

Security doors with door frames are more secure and easy to install screens in summer. The spacing between the steel pipes of the gate fence is not more than 6cm (it is best that the hand cannot reach in).

2. The material should be thick

The thickness of the pipe plate is generally not less than 1.2mm, the surface treatment of the steel management body has high smoothness, no roughness and blistering, and the thick steel pipe has good sound quality and stable hand feeling.

3. Lock

The anti-theft lock with multi-insurance function of the third tongue lock head should be selected, which can be opened or locked indoors and outdoors, and a door lock protection iron plate should be installed on the door to make it difficult for keyless people to pry.