In response to the great strategic goal of the country’s One Belt and One Road, our Longhua Company will participate in the Central Asia One Belt and One Road (Xinjiang) Industrial Expo from May 16 to May 18, 2024, as an excellent high-tech enterprise in the intelligent manufacturing of die-casting equipment. This exhibition, booth number is 2198. In this booth, we will display our company's new scientific and technological achievements and intelligent manufacturing technology. This expo is an important event marking a new chapter in the industrial development of Central Asia. Longhua Company will take this opportunity to showcase our newly developed die-casting machines, die-casting robots and other green casting equipment with "Hefei Institute of Physical Sciences, Chinese Academy of Sciences", "Bengbu Institute" and other large institutes, and share our experience with colleagues from all walks of life. Technological innovation and new scientific and technological achievements in this field. Since its establishment, Longhua Company has been committed to promoting the advancement of industry technology and product upgrades to meet customer needs. Our products are widely used in various "non-ferrous metal deep processing" fields, such as: new energy vehicles, fuel vehicles, motorcycles, mopeds, hardware tools, aerospace, furniture, construction machinery, agricultural machinery, IT, space carriers, aircraft, etc. . We look forward to establishing friendly contacts with more international customers along the Belt and Road through this expo, exploring opportunities for win-win cooperation, and creating a better future together. Finally, I sincerely wish the 2024 Central Asia Belt and Road (Xinjiang) Industrial Expo a complete success! Let us work together to promote regional economic development and share the bright prospects of win-win cooperation!

Common problems with die-cast aluminum pots and their corresponding solutions are as follows: 1. Deformation or discoloration: Treatment plan: Avoid rapid temperature changes, do not use too high firepower when using, avoid putting it in cold water when cooling, use mild detergent to clean, avoid using hard objects such as metal brushes for cleaning. 2. Surface wear: Solution: Avoid using metal utensils or knives to scratch the surface of the aluminum pot. Use a soft cleaning tool, such as a soft sponge or cloth. 3. Adherence to food: Solution: Use enough grease or cooking spray to avoid over-drying over high heat, and clean aluminum pans regularly to prevent food residue from accumulating. 4. The bottom of the pot is sunken: Solution: Avoid collision or violent beating, choose a flat stove surface for use, and do not over-stir or use excessive pressure when using. 5. Coating wear: Solution: Choose a high-quality coated aluminum pan, avoid using sharp objects to scratch the surface, and avoid using metal cutlery. 6. Metal migration: Solution: Choose high-quality aluminum pots, do not store food in aluminum pots, especially acidic foods, and avoid using aging or damaged aluminum pots for a long time. 7. Oil and water leakage: Solution: Regularly check whether the welding joint of the aluminum pot is intact. If oil or water leakage is found, replace or repair the aluminum pot in time. The above solutions can help extend the service life of aluminum pots and ensure that common problems are reduced during use.

Some common problems that can occur with die-cast aluminum pans include: 1. Deformation or discoloration: Due to the high thermal conductivity of aluminum, the pot may be deformed or discolored due to high temperature or sudden changes in temperature during use. 2. Surface wear: Prolonged use or improper use may cause wear on the surface of the pot, especially if metal tableware or knives are used to wipe the aluminum pot. 3. Food sticking: Without proper coating or regular maintenance, food may stick to aluminum pans, making cleaning difficult. 4. The bottom of the pot is dented: Prolonged use or collision may cause the bottom of the aluminum pot to be dented, which may affect the heat conduction performance. 5. Coating wear: Some aluminum pots are coated to prevent food from sticking, but long-term use or improper use may cause the coating to wear and need to be replaced regularly. 6. Metal migration: Low-quality or substandard aluminum pots may have metal migration problems, releasing metal elements such as aluminum into food, which may affect health. 7. Oil and water leakage: There may be quality problems in the welding joints of some aluminum pots, resulting in oil and water leakage. To avoid these problems, it is very important to choose a high-quality aluminum pot and follow correct usage and maintenance methods.

During the manufacturing process of die-cast radiators, you may encounter some common problems, here are some of them: 1. Stomata and bubbles: Problem description: Porosity and bubbles are common defects in the die-casting process and may appear on the surface or inside the radiator. Solution: Optimize the die-casting process to ensure smooth metal flow and avoid gas being trapped in the casting. The generation of pores and bubbles can be reduced by improving mold design, controlling pouring temperature and speed, and adopting a suitable pouring system. 2. Thermal cracks: Problem description: During the cooling process of the radiator, thermal cracks may occur due to uneven metal temperature or rapid cooling. Solution: Optimize the casting process, control the cooling rate and temperature uniformity of the metal, and avoid excessive cooling or the occurrence of stress concentration areas. In addition, appropriate alloy composition and process parameters are selected to reduce the occurrence of hot cracks. 3. Deformation and dimensional deviation: Problem description: The radiator may shrink and deform unevenly during the cooling process, resulting in size deviation or irregular shape. Solution: Optimize the mold design, take into account the shrinkage of the radiator, and use a suitable cooling system to ensure that the casting is cooled evenly and avoid deformation. In addition, post-processing processes, such as heat treatment or machining, can be used to correct dimensional deviations in castings. 4. Surface quality issues: Problem Description: The surface of the radiator may be oxidized, blemished or rough. Solution: Strengthen mold surface treatment, such as polishing, sandblasting, etc., to improve surface quality. In addition, the coating materials should be selected and used rationally to control the oxidation reaction during the casting process to reduce the occurrence of surface defects. By optimizing the process, improving equipment and strengthening quality management, these problems can be effectively solved and the quality and production efficiency of die-cast radiators can be improved.

There are some differences in the principle of refrigeration and working methods of air-cooled screw-type cold water machines and air-cooled cold water machines. It is mainly reflected in the type of compressor and refrigeration method: 1. Compressor type: Wind-cold screw-type cold water machine: Use screw compressor as the core component of the refrigeration system. The screw -type compressor compress the refrigerant through the rotation of the screw, which has efficient and stable refrigeration performance and is suitable for a large refrigeration system. Cold-cold cold water machine: Usually a reciprocating compressor or screw compressor. Compared with the screw -type cold water machine, the type of compressor of the air-cooled cold water machine may be more diverse, but in some cases, the reciprocating compressor may be lower than the screw compressor, but the efficiency is usually lower. 2. Refrigeration method: Wind-cold screw-type cold water machine: Use a fan to flow the air over the condenser, so as to cool the refrigerant and distribute the heat into the environment. This method can save water resources and suitable for the scene of water -free cooling system. Cold-cold cold water machine: It also uses a fan to flow the air over the condenser, but its compressor type may not be limited to screw type, which can be duplex. This method can also distribute heat into the environment, but in some cases, more water resources may be needed to maintain the cooling effect. In summary, the air -cooled screw -type cold water machine has some differences in the type and cooling method of the compressor and the cooling method. Screw -type cold water machines usually have higher energy efficiency and stability, suitable for the requirements of large refrigeration systems, while air-cooled cold water machines may have some advantages in the cooling method and cost, suitable for the needs of small and medium-sized refrigeration systems.

Spot coolers and mold temperature controllers are two common devices used to control mold temperature. They have some differences in working principles and application scenarios: 1. Cooling machine: Working principle: The spot cooler controls the temperature of the mold by directly injecting refrigerant into the cooling channel in the mold. The refrigeration process is usually accomplished using components such as compressors, condensers, evaporators, and control systems. Application scenario: The spot cooler is suitable for scenarios where precise control of mold temperature is required, especially for large and complex molds and production processes that require high product quality. Spot coolers generally provide greater temperature control accuracy and stability. 2. Mold temperature controller: Working principle: The mold temperature controller circulates the heat transfer medium (usually water or oil) through the cooling channels of the mold to absorb or release heat to control the temperature of the mold. The mold temperature controller includes heating elements, circulation pumps, control systems and other components. Application scenario: Mold temperature controller is suitable for situations where the mold temperature requirements are not too strict, such as in plastic injection molding, die-casting and other production processes. Mold temperature controllers generally provide relatively low cost and simpler operation, but the temperature control accuracy may not be as high as that of spot coolers. In general, spot coolers are suitable for production scenarios with higher mold temperature control requirements, while mold temperature controllers are more suitable for general mold temperature control needs. The choice of which equipment to use should be determined based on specific production needs, mold design and product quality requirements.

2024 Labor Day Holiday Notice Dear friends: The long-awaited Labor Day is finally here. Longhua Technology wishes everyone a happy holiday! At the request of the State Council, the May Day holiday period is: 5 days off from May 1st to May 5th, with working hours on April 28th (Sunday) and May 11th (Saturday). Longhua Technology warmly reminds our respected new and old customers: The May Day holiday is approaching. In order to ensure that your company's production can continue smoothly after the holiday, please put the following things in place before the holiday: 1. For customers who need to shut down the furnace during holidays, please be sure to clean the aluminum liquid in the crucible before cooling the crucible; if there is a lot of aluminum liquid remaining in the crucible, the solidified aluminum liquid will easily expand the crucible when the furnace is opened again. crack; 2. If the customer intends to keep the stove warm during the holidays, please also set the heat preservation temperature above 650 degrees. 3. For customers who start the furnace again after holidays, please repeat the initial preheating process for the crucible, empty the crucible, and preheat for a longer time than the initial preheating. 4. When adding materials after the crucible is preheated, please be sure to pay attention. The ingots must be placed vertically into the crucible, and cannot be placed too much or too tightly at one time to avoid cracking the crucible.

Cold chamber die casting machine has the following advantages in producing aluminum alloy pots: Precise molding: Cold chamber die casting machines can provide high-precision castings to ensure that the shape, size and surface quality of aluminum alloy pots meet requirements, thereby ensuring product quality and stability. High-efficiency production: The cold chamber die-casting machine has a fast production cycle, can quickly fill the mold and cool it quickly, so it can greatly improve production efficiency and meet market demand. Excellent surface quality: The cold chamber die-casting machine can effectively control the surface finish and surface defects of castings to produce aluminum alloy pots with smooth appearance, no pores, and no defects, improving the aesthetics and added value of the product. Optimized mechanical properties: Through cold chamber die-casting technology, the uniform structure and optimized mechanical properties of aluminum alloy pots can be achieved, improving the strength, hardness and wear resistance of the product, and enhancing the service life of the product. Saving material costs: The cold chamber die-casting machine can reduce the scrap rate, maximize the use of raw materials, reduce production costs, and improve the economic benefits of the enterprise. To sum up, the cold chamber die casting machine has the advantages of precise molding, efficient production, excellent surface quality, optimized mechanical properties and cost saving when producing aluminum alloy pots, making it an ideal choice for the aluminum alloy pot manufacturing industry.