[Guangdong Shoushou wholesale introduces the anti-corrosion measures of door and window hardware accessories]

Modern building doors and windows can be roughly divided into plastic windows, composite windows and aluminum alloy windows according to the types of profiles. Aluminum alloy windows are the main building doors and windows products in China, which accounts for a considerable proportion in the current buildings. In fact, aluminum alloy windows have their advantages in terms of wind pressure resistance, water tightness, air tightness and environmental protection. This is because the moment of inertia of aluminum alloy window is 3-4 times of that of plastic window; With the use of the bridge breaking in the aluminum alloy profile, the thermal insulation and heat insulation performance of the aluminum alloy window has been greatly improved, which is very suitable for the energy saving requirements which are advocated by the present.

Aluminum alloy door and window hardware is an important part of it, its performance and quality have an important impact on the function of doors and windows. With the development of modern technology, door and window hardware accessories (handle, handrail, hinge, slide rail, connecting parts, etc.) are also increasingly coming into the market. The shape and color of these products are varied and colorful, which makes the practicability and appearance of doors and windows more colorful. But due to the difference between parts and surface decoration materials, their service life (mainly refers to the corrosion resistance, durability and strength) is far from each other. Even if the color is the same, even the aluminum alloy window parts with similar hand feel have several or even dozens of times the difference. In addition to considering that the aluminum alloy door and window hardware must have sufficient mechanical strength, it is also necessary to pay attention to whether the selected materials can keep good corrosion resistance when they are in contact with the aluminum alloy. Whether the hardware of aluminum alloy doors and windows can meet the design life requirements is very important for the safety and durability of aluminum alloy doors and windows in the process of use. Only when they are combined can they really play the beautiful and generous and durable features of aluminum alloy doors and windows.

The material similar to the potential difference of aluminum profile is used

It is one of the best choices to use materials with similar potential difference to aluminum profile or materials with good corrosion resistance, such as handle, hinge and various connectors made of aluminum alloy. The same metal combination is an ideal design to avoid self couple battery. However, many parts are not easy to use aluminum and aluminum alloy because of strength or manufacturing difficulty, so stainless steel with good corrosion resistance should also be one of the first materials to be used. Stainless steel with good corrosion resistance is generally composed of chromium, nickel, titanium and other components in the steel, which itself is a complex primary cell structure, so it has good chemical stability. In many acid, alkali and salt solutions, the corrosion resistance is high in organic acid, steam and wet air. Using stainless steel will reduce or avoid the harm of galvanic corrosion.

Adopt zinc alloy and make proper surface treatment

Zinc alloy is widely used in door and window hardware due to its simple manufacturing process and low cost. Zinc alloy is easy to be corroded in acid, alkali and salt solution, but it is easy to be passivated in the atmosphere and has good oxidation resistance. The surface of zinc alloy parts generally adopts metal coating or non-metal coating. Typical treatment processes include zinc alloy passivation, zinc passivation, painting, plastic powder spraying, etc. the former has good wear resistance, and the passivation film has certain acid-base resistance, which can prolong the corrosion resistance time of parts; The latter is a non-metallic film with good insulation, which can avoid galvanic corrosion. At present, there is a surface treatment method in the market electroplating pearl chromium. The pearl chromium coating has high hardness, good wear resistance, rust resistance and beautiful appearance. Pearl chromium is one of the best surface treatment methods for aluminum alloy door and window hardware, no matter from the perspective of corrosion protection or appearance selection.

Choose more stainless steel materials

The exposed common carbon steel hardware is generally not suitable to be used as aluminum alloy door and window hardware materials, because carbon steel itself does not have the performance of surface passivation, so it is the sacrificial anode in aluminum alloy door and window in the process of electrochemical corrosion. The better measure is to add insulating material or non-metallic coating on the contact part of aluminum profile after plating metal film on the surface, so as to avoid or reduce the damage of galvanic corrosion on hardware. Stainless steel has excellent anti-corrosion performance, so we should vigorously promote the use of stainless steel instead of carbon steel to make door and window accessories.

Carry out corresponding surface treatment.

Metal coating

The practice shows that the electroplating layer formed on the surface of hardware is not only beautiful and smooth, but also has high bonding strength with the base metal under the coating, and the coating is not easy to fall off. In addition, the decorative layer also has the characteristics of corrosion resistance, oxidation resistance and long service life.

Non metallic protective coating

The artificial oxide film on the surface of steel and aluminum hardware is not only beautiful, smooth and dense, but also has much higher bonding strength with the substrate, which is difficult to grind off. This layer of oxide film can also prevent the metal under it from further corroding with air or other harmful gases. Because the oxide film on the surface of steel and aluminum hardware has lost its original metallic properties and become non-metallic, it is also called non-metallic protective decorative layer.

Double layer anticorrosion is adopted

At present, carbon steel is widely used in the hardware fittings of aluminum alloy doors and windows, such as transmission lock, lining steel, etc. For carbon steel, the main cause of corrosion is insufficient thickness of zinc coating. It is necessary to increase the thickness of zinc coating for carbon steel parts, and strengthen the post-treatment process. Inorganic salts such as silicate or organic film should be used for covering treatment, which can greatly improve the corrosion resistance of zinc coating. After sealing, the original rainbow passive film will become golden yellow.

Today, with the rise of industries all over the world, the harm of industrial atmosphere to doors, windows and hardware is quite common. The selection of hardware materials and appropriate surface protection have been paid attention to by the industry. In recent years, the aluminum alloy profile has been improved in many aspects, such as the use of surface electrostatic spraying, so that the surface color of aluminum alloy can be rich and colorful, which also makes the aluminum alloy doors and windows play a key role in enriching the facade effect of new residential areas and expanding the use space.

[introduction to Guangdong handle wholesale: what is the use of handle in door and window hardware system]

Aluminum door and window accessories (i-lock, handle, pulley, hinge, etc.) are known as the "heart of doors and windows". It can be seen that they are not "supporting roles", and they play an important role and position in the overall effect of aluminum alloy doors and windows as well as aluminum profiles and glass.

What is the door and window handle?

The handle is divided into single point handle and transmission handle, which can rotate to realize the door and window locking and opening with the transmission.

In the function of the door and window hardware system, the handle can be rotated 90 degrees and 180 degrees, and connected with the connector through the plug, so as to transfer the movement and make the lock point enter the lock seat, so as to realize the locking function.

What is the use of handle in door and window hardware system?

The handle base is made of high-quality aluminum alloy and precisely cut with numerical control equipment to ensure smooth appearance and touch design, so that users can obtain satisfactory comfort when using.

The main body of the handle can be locked with the screw and the bottom gasket, which is convenient and fast. The screw will not be exposed after the handle is installed, so as to maintain the consistency and beauty of the product appearance.

The handle is made of high quality stainless steel, so the handle has higher torsional strength and can be used for thicker profiles.

[Guangdong handle wholesale manufacturers]

Guangdong Tianbian construction hardware products Co., Ltd., founded in 1989, is located in Jinli Town, Gaoyao City, Guangdong Province, the hometown of hardware. It is a large-scale enterprise in the domestic construction hardware industry, and also one of the large-scale hardware manufacturers of doors, windows and curtain walls in China; Mainly engaged in high-end building doors and windows curtain wall hardware system hardware accessories product development, production and sales. After 30 years of hard work, innovation and precipitation, we have stepped on the development road of the leading enterprise of construction hardware manufacturing. From Foshan Tianbian aluminum alloy door and window accessories die casting factory to Guangdong Tianbian construction hardware products Co., Ltd., from channel circulation products "crescent lock king" to engineering supporting perfect system hardware product service, from unknown small factory to large-scale modern production base. Mr. Liu Baoqiang, chairman of the board of directors, led the new and old Tianbian people. After five times of large-scale technological innovation and enterprise upgrading, Tianbian hardware has become a representative in the innovation and development of the industry and a famous domestic brand.

It is worth noting that a huge investment was made in 2005 to build a new production base of 50000 square meters in Jinsheng Industrial Park, Gaoyao District, Zhaoqing City, which was completed and put into use in 2008. The new production base has advanced production equipment, perfect production line, perfect R & D center and detection system. With the national professional testing institutions synchronous standard product testing center, to ensure that products meet national standards at the same time, constantly improve product performance. In order to ensure the high-quality production of the products, all the developed products are strictly tested by the testing system, and are put into mass production after confirming that all the performance indexes of the products meet the national standards.

Where there are buildings, there are building hardware beside the field! Tianbian hardware makes every user feel the enjoyment of modern science and technology building hardware system, makes all buildings using Tianbian hardware products more beautiful, energy-saving and environmental protection, and becomes the most beautiful landscape in the city.