1. There are seams or poor welding Hollow aluminum alloy profiles are extruded using a plane shunt combination die. The metal goes through the process of shunting and welding, so there are welding lines in the hollow profiles. If the metal welding is not good and gaps appear, it is a defect. There are two reasons for the gap. One is that the shunt hole and the welding chamber are small, the metal flow is insufficient, and the metal does not form enough hydrostatic pressure in the welding chamber. The product is not welded well and flows out of the die hole, resulting in welding of the product. Gaps; the second is caused by excessive lubrication and poor lubrication causing poor welding of hollow profiles. The former can be solved by grinding or milling to enlarge the shunt hole and the welding chamber area, and increase the metal supply flow, so that the metal can form sufficient hydrostatic pressure in the welding chamber. The latter can be solved by using a non-lubricated extrusion process.   2. The wall of the aluminum alloy profile has a concave or convex arcuate surface. 1）The reason for the concave arcuate surface of the hollow aluminum alloy profile wall: the mold core working belt is lower than the lower mold hole working belt, and the effective length of the mold core working belt is too short. Correction method: Place a spacer ring between the mold core and the lower mold so that the mold core working belt is at the same height as the lower mold hole sizing belt under stress. At the same time, the same thickness is reduced at the outlet of the lower mold. 2）Reasons for the bulging of the hollow aluminum alloy profile wall: the mold has been used for too long, the mold core working belt is severely worn, grooves appear, and the friction resistance is increased. The slow metal flow causes the hollow profile wall to bulge. Correction method: If the profile wall thickness tolerance allows, you can file or polish the surface of the working belt of the mold core to reduce the friction resistance; if the wear of the mold core working belt is serious and the profile wall thickness has reached the upper deviation, the mold can be Preheat to about 300°C, repair weld the mold core shape, then file it to the required size and polish it before use; if the mold core working belt is not worn, file the outer obstruction and the inner stagnation of the mold core working belt. That’s it.   3. Surface stripes on aluminum alloy profiles Stripes appear on the outer surface of extruded profiles, which are more obvious after anodizing. This defect is mostly seen on the parts with large differences in wall thickness of the profile, the welding parts of the metal under the shunt bridge, and the back side with "branches" and threaded holes on the inside. cause: 1）The "branches" and threaded holes on the inside of the profile cause surface streaks due to insufficient or excessive metal supply; 2）Stripes on the profile surface caused by the welding area under the mold shunt bridge; 3）Problems in profile cross-section design. Due to the large wall thickness difference of the profile, the parts where the length of the working belt changes suddenly will produce stripe-like color difference after anodization; 4）Due to insufficient cooling capacity of the machine, black streak areas are caused after anodization; 5）The quality of the cast billet itself is not good, which affects the stripe color difference after anodization of the extruded material. Correction method: 1）Check whether there are any large differences in wall thickness, branches and threaded holes on the decorative surface of the profile in the customer's drawings; 2）The shunt bridge should be designed on the non-decorative surface of the profile. While ensuring the strength of the mold, the welding chamber should be as large as possible so that the metal can form sufficient hydrostatic pressure; 3）For large-diameter pipes or large-size hollow profile molds, an upper welding chamber can be provided on the male mold; 4）For the "branches" or stripes at the threaded holes on the inside of the profile, the mold repair method is to polish the mold hole working belt of these parts, polish them smooth, or modify or reduce the connection transition radius of these parts; 5）Sometimes the stripes are formed by the casting material itself, which requires uniform heating temperature and thorough homogenization annealing; 6)After the extruded material exits the die hole, its grain size depends on the temperature entering the quenching zone and the cooling rate in the quenching zone. If the cooling temperature is too low and the cooling rate is uneven, the grains will be too large or the grain size will be uneven. The color difference will be more obvious after anodization, requiring the operator to adjust the air pressure and cooling water pressure of the cooling system in a timely manner.

The China Import and Export Fair (commonly known as the Canton Fair) is one of the biggest events on the global trade calendar. Since its first edition in 1957 in Guangzhou, China, the biennial show has grown into a huge platform for import and export across various industries, showcasing products from numerous industries each spring and autumn. Co-sponsored by the Ministry of Commerce of the People's Republic of China and the People's Government of Guangdong Province; the China Foreign Trade Center provides organizational work; each spring and autumn event is hosted by these units in Guangzhou, and the China Foreign Trade Center is responsible for planning.   The upcoming 135th Canton Fair will mark another important moment in its long and glorious history. The show, scheduled to take place in the spring of 2024 at Guangzhou’s massive Canton Fair pavilion, promises to build on the traditions of the past by encouraging international trade and business interaction. Carefully organized into three stages, each focused on a specific industry or product, so attendees can effectively navigate and maximize their participation in this global trade event. Our booth will be at Hall No.12.1，Hall No.12.1 , all customers are welcome to visit

In the third month of sunny spring, the spring is full of vitality, and the branches add greenery. In order to strengthen the construction of corporate culture, gather the strength of the company team, pay attention to the physical health of the company's employees, and promote a low-carbon, environmentally friendly, and healthy lifestyle, on March 23, Guangya organized employees to participate in the "Beautiful Foshan, Moving Forward" 50km hiking activity. Measure the green and beautiful Foshan with your footsteps, and witness the high-quality development of the city.     For this hiking activity, the company chose the "Shunde Line" with a total distance of 43 kilometers. In this event, a total of 100 members of the company actively participated and experienced this unforgettable hiking journey together.     On the journey, everyone was full of energy, walking briskly, feeling the spring breeze on their faces, and breathing fresh air. They sometimes exchange work experiences, sometimes discuss the benefits of exercising, and sometimes share the joy of life. Laughter and joy come one after another, like vibrant and beautiful paintings.     As night fell, some buddies completed a 50km hike and arrived at the finish line. They wore victorious smiles on their faces. From 8am to 8pm, it was a long 12 hour challenge that tested their willpower and endurance, as well as a challenge they challenged themselves to their limits.    

  T4, T5, and T6 are markers related to the heat treatment state of aluminum alloys, usually used to indicate different hardness and strength. These markings are typically used to describe the state of aluminum alloy materials that have undergone heat treatment. Here are some of their main differences:   1.T4 status: T4 indicates that the aluminum alloy has undergone natural aging. In the T4 state, the aluminum alloy undergoes solid solution treatment and then naturally ages at room temperature for a period of time. This state typically provides moderate hardness and strength, but is not as high as other states. The T4 state is suitable for applications that require a certain level of hardness and strength, but do not require too high performance.   2. T5 status: T5 indicates that the aluminum alloy has undergone artificial aging treatment. In the T5 state, after solid solution treatment, aluminum alloy will undergo artificial aging treatment at a certain temperature to increase its hardness and strength. T5 state typically provides higher hardness and strength than T4, making it suitable for applications that require higher performance.   3. T6 status: T6 indicates that the aluminum alloy has undergone artificial aging treatment and is usually aged at higher temperatures. The T6 state provides the highest hardness and strength, typically used in applications that require high performance and strength. In the T6 state, aluminum alloys typically undergo stricter heat treatment processes to achieve optimal performance.       The selection of these states depends on specific engineering requirements and applications, requiring a balance between hardness, strength, and other material properties. Aluminum alloys in different states can be used for different applications to meet specific requirements. Therefore, when selecting the appropriate heat treatment state, it is necessary to consider the final performance requirements of the material.    

Aluminum extrusion process definition   Aluminum extrusion molding applies strong pressure to the aluminum blank placed in the mold cavity, forcing the aluminum blank to undergo directional plastic deformation and extrusion from the die hole of the extrusion die, thereby obtaining the required cross-sectional shape, size and a certain Plastic processing method of parts or semi-finished products with mechanical properties. The principle of aluminum extrusion is similar to squeezing out toothpaste. Guangya has a 4,000-ton extrusion press, which can meet the processing and customization of various aluminum profile products.   Aluminum extrusion die   For product structure design engineers, we can design aluminum extrusion dies according to customer needs. Our engineers understand the basic extrusion die structure and the mechanism of how to shape different extrusion parts contour shapes, which helps in extrusion processing. When designing extruded parts, optimized design is used to reduce mold costs and improve extruded part production efficiency.       Advantages and applications of aluminum extrusion process   The aluminum extrusion process has the advantages of durability, lightness and strength, good thermal conductivity, fashionable appearance, easy secondary processing, short mold processing cycle, low cost, etc.   Its application scenarios are also very wide, such as: aviation and aerospace industry, transportation industry, building products industry, consumer goods industry, electronics industry, lighting industry, solar energy industry, etc.

The purpose of coating pretreatment depends on the process requirements of different industries and the processing purpose of the products. Generally used to eliminate vegetable grease, oil stains, corrosive substances, residual residues, etc. on the surface of the coated material, and give the coated material certain organic chemical and physical properties to improve the adhesion of the coating and Improve the defensive and decorative properties of coating materials.     Excellent coating pretreatment can give full play to the actual effect and function of the coating's decorative design. Otherwise, no matter how many coatings you apply, it will not be able to give full play to its required effect. Therefore, coating pretreatment is a key process in the entire coating construction process, which can ensure the excellent quality of the coating, such as multi-functional phosphorus-free degreasing powder, wide versatility, low alkali, phosphorus-free and environmentally friendly.     1. Ensure and improve the safety and protection properties of the coating. ​ 2. Improve the adhesion of the coating to the surface of the blocks. ​ 3. Produce appropriate roughness. ​ 4. Improve the compatibility and compatibility between the coating and the substrate.        

The competitive landscape of the recycled aluminum industry has improved.   In 2021, China's recycled aluminum output will reach 8.3 million tons, a year-on-year increase of 12.16%, and the product output value will reach 180 billion yuan, a year-on-year increase of 38.5%. As of the end of 2021, China has built an annual output of recycled aluminum of 15.795 million tons. There are more than 1,000 recycled aluminum plants across the country. Industry concentration is low and most are small.   According to statistics from the Recycled Metal Branch of the China Nonferrous Metals Industry Association, the industry's current annual production capacity is 380,000 tons, and there are only 30 companies with an annual production capacity of 100,000 tons.   China's recycled aluminum industry takes a leading position in the research and development, production and sales of heatless materials. In the future, the R&D, production and sales of heat-free materials in China will be dominated by a few leading companies with certain advanced characteristics. The market competition pattern will be significantly improved, and product gross profit will significantly exceed the current level.

Metallic fluorocarbon paint is a high-grade topcoat with excellent anti-corrosion, decorative and mechanical properties. It is used as a long-lasting coating in outdoor environments. Fluorocarbon paint contains F-C chemical bonds, has excellent stability, and has strong UV resistance. Protects outdoor paint for more than 20 years. Fluorocarbon topcoat has significant protective effects and is mainly used in areas with harsh corrosive environments or high decorative requirements, such as bridge steel structures, concrete exterior wall coatings, construction venues, guardrail decoration, port facilities, marine equipment anti-corrosion, etc. Heavy anti-corrosion Fluorocarbon paint is mainly used in heavy anti-corrosion areas, such as oceans and coastal areas. It has excellent solvent resistance and can withstand acid, alkali, salt water, gasoline, diesel, highly corrosive solutions, etc. The paint film does not dissolve and there are no abnormal phenomena.   Decoration performance Fluorocarbon paint films are available in a variety of colors and can be formulated with solid color paints and metallic topcoats. Maintains gloss and color when used outdoors, and the coating does not discolor for a long time.   Ultra weather resistant Fluorocarbon paint coating has excellent weather resistance and UV resistance. The paint film will not flake after 20 years of use and has very good protective properties.   Self cleaning Fluorocarbon paint has self-cleaning properties, large surface energy, no staining, easy to clean, and the paint film will remain as new for a long time.   Mechanical behavior Fluorocarbon paint film has strong mechanical properties, and its adhesion, impact strength, and flexibility meet all standard testing.