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In order to ensure that the technical requirements of exterior doors and windows are clarified in the process of project design, procurement, and construction, the performance requirements of wind pressure resistance, water tightness, air tightness, heat preservation, sound insulation, lighting, safety, etc. are met, and common problems in exterior doors and windows projects are avoided. Repeatedly, these ten key points of door and window quality control are worth seeing! These are the quality inspection points when the broken bridge aluminum doors and windows project is completed.

Front part: Quality control performance requirements for exterior doors and windows

1. Carefully choose the color of aluminum alloy doors and windows.

Mainly divided into two kinds of monochrome and wood grain color. General monochrome such as white, gray, wood grain color such as North American oak, South Asian rosewood, camphor wood, sandalwood, red sandalwood. In terms of the color of the paint surface, the color of the aluminum door needs to be combined with the decoration style and design of your home, so as to perfectly combine the harmonious atmosphere.

2. Choose aluminum alloy doors and windows made of healthy and environmentally friendly materials

During the purchasing process, you will definitely smell the smell from the doors and windows. Doors and windows made of inferior materials can damage the respiratory tract, leading to dizziness and headaches. High-quality aluminum alloy doors are made of high-quality, healthy and environmentally friendly aluminum profiles. The smell is light, and it usually doesn’t smell after a while.

3. Door and window details matter

Doors and windows with good details are equivalent to appreciating a carefully crafted handicraft. Its connection, colloid bonding, and extrusion processes are all products processed through multiple links and multiple processes. The treatment of details is related to the beauty and life of doors and windows. When purchasing, you must carefully inquire, select, and read the product manual to understand the forming process.

4. Focus on texture

Aluminum alloy doors and windows are the patron saint of a home. The quality is good or bad is to determine the value of a door and window. At the time of purchase, you can judge whether it is rough, cracked, or poorly colored by touching it. Regular brand aluminum alloy doors and windows, the manufacturer, place of origin, model, specification, etc. will be written on the label. Beware of buying counterfeit and inferior products.

The spray guns should maintain a certain inclination, which is biased towards the running direction of the profile. The spray guns should be kept vertically parallel in arrangement, and the end parts should be kept in a straight line. There should be no overlapping parts between the spray guns. It is advisable to cover all profiles.
Control of fluidizing air pressure
The control of fluidized air pressure, the function of the fluidized bed is to use the effect of the air flow to make the powder form a proper fluidized state, the hand feel is similar to the state of liquid flow, and the fluidization is detected to reach a sufficient state. The simpler operation is: use When the powder is stirred by hand or stick, there is no resistance. Fluidization facilitates the suction of powder into the duct. Under the action of accelerated wind, the effect of atomization is produced. Insufficient or excessive pressure will cause insufficient fluidization.

Aluminum profiles are extruded sections of aluminum that have a variety of cross sectional shapes. They are commonly used in construction, manufacturing, and engineering industries due to their lightweight, corrosion resistant, and high strength properties.

Aluminum profiles are typically produced using an extrusion process, in which a heated billet of aluminum is pushed through a steel die/mould to create a specific cross sectional shape. The profile can be created in almost any design or shape, including tubes, L shapes, T shapes, Z shapes, and U shapes, as long as the customers offer us the samples or their own designs, we are able to customized and produce them.

Aluminum extruded profiles can be widely used for a range of applications, such as for framing systems, window and doors, curtain walls, railings, automotive parts, LED lighting, heat sinks and more. They may also be anodized, powder coated, PVDF, polished, sandblasted and wood grain transferred to enhance their appearance or provide additional protection against corrosion.

In general, aluminum profiles are versatile and highly customized, making them a popular choice for various industrial and architectural applications.

A brief description of extrusion method for aluminum profile processing
Aluminum processing is a very important technology, when the aluminum processing also need to consider many issues, for users, consider the process should be considered the most is the operation method, because the choice of different aspects of the extrusion effect is not the same as that of industrial aluminum production the manufacturers give you about processing aluminum extrusion method.
Aluminum extrusion
1. according to the direction of extrusion: can be divided into forward extrusion, reverse extrusion, lateral extrusion.
2. according to deformation characteristics: plane deformation extrusion, axisymmetric deformation extrusion, general three-dimensional deformation extrusion.
3. according to the state of lubrication: no lubrication, extrusion, lubrication, extrusion, glass lubrication, extrusion, ideal lubrication extrusion (hydrostatic extrusion).
4. according to the extrusion temperature: cold extrusion, warm extrusion, hot extrusion.
5. according to the type of mold or mold structure is divided into: flat die extrusion, cone die extrusion, split die press, with punch extrusion.
6. according to the blank shape or the number of points: bar extrusion, tube extrusion, solid aluminum extrusion, hollow aluminum extrusion, single section aluminum extrusion, extrusion products (single hole extrusion), extrusion products (porous extrusion).
7. according to equipment types: vertical extrusion, horizontal extrusion, continuous extrusion.

Matte matte aluminum profile fabric: fabric to avoid the Aluminum Alloy profile bright light will form certain interference environment, under the condition of building decoration in the shortcomings of its surface such as brocade as soft and delicate, very popular with the favor of the market, but the existing grinding material must overcome sand surface is not uniform, and can see the pattern.
Aluminum machining
Multi color surface treatment of aluminum: the monotonous white and tinted silver has been unable to meet the good cooperation of architects and the exterior decorative tile, exterior wall latex, new stainless steel color, champagne, gold, gold, titanium series (red wine, red jujube red, black and purple) with color glass the decorative effect of the icing on the cake. These aluminum must be followed by chemical or mechanical polishing and oxidation, the effect was good.
Electrophoretic coating aluminum: electrophoretic coating aluminum surface soft luster, can resist the erosion of acid rain, cement mortar, Japan 90% aluminum after electrophoretic coating.
Powder electrostatic spraying aluminum profile: powder electrostatic spraying profile is characterized by excellent corrosion resistance, acid, alkali, salt fog is much better than the oxidation coloring aluminum profiles.
Plasma enhanced electrochemical surface ceramic aluminum profile: this type of aluminum profile is the most advanced processing technology in the world. The aluminum profile products are of good quality, but the cost is higher. It has more than 20 kinds of colors, the biggest feature is that it can be printed as needed according to the printing cloth, the surface of the section is colourful and the decoration effect is excellent.

Causes of surface corrugation defects on aluminum profile:
1. the design of the length, proportion or cavity size of the aluminum profile extrusion die is seriously wrong, and the flow ratio is seriously disturbed.
2. aluminum extrusion dies work with angle of obstruction and angle of flow.
3. the difference of the drop ratio of the upper and lower die in the aluminum extrusion die.
4. die die work with parallel aluminum extrusion, a horn mouth.
5. the die resistance of the aluminum profile extrusion die is high on the flow table, blocking the work out with the material or drainage slot (size, depth, position).
6. aluminum profile extrusion die work belt outside the empty knife is too few, even does not have (the electric spark not to hit well) or too big (the work belt does not support to crack the distortion).
7. the new die or repaired aluminum extrusion die is difficult to produce because of the uneven grit, polishing and uneven working band.
8. part of aluminum extrusion work with oil.
9. the support pad is too small to hinder.
10. aluminum tail waves appear around 1m (V3 volume aluminum press).