In the die - casting process, hot - chamber and cold - chamber die - casting machines are two common types of equipment. They may seem similar, but actually have significant differences in many aspects. In terms of structure, the injection system of the hot - chamber die - casting machine is directly immersed in the molten metal of the furnace. It scoops and injects the metal through a gooseneck tube, featuring a compact structure and a simple operation process. On the other hand, the injection chamber of the cold - chamber die - casting machine is separated from the furnace. During die - casting, the molten metal needs to be ladled into the injection chamber first and then injected, resulting in a relatively complex structure.     Regarding the working principle, the hot - chamber die - casting machine uses air pressure to push the piston, forcing the molten metal into the mold cavity through the gooseneck tube. It has a high production efficiency and is suitable for producing small, thin - walled castings made of zinc alloys, lead alloys, etc. The cold - chamber die - casting machine uses hydraulic pressure to drive the injection punch, injecting the molten metal in the injection chamber into the mold at high speed. It is suitable for manufacturing large, thick - walled castings made of aluminum alloys and magnesium alloys.     In terms of production efficiency, the hot - chamber die - casting machine has a short operation process and can quickly complete the die - casting cycle, thus achieving high production efficiency. For the cold - chamber die - casting machine, since the molten metal needs to be ladled and then injected, the preparation time is longer, leading to relatively lower production efficiency.     In terms of cost, the hot - chamber die - casting machine has a simple structure and a low equipment cost. However, due to its long - term exposure to high - temperature molten metal, key components are prone to damage, resulting in high maintenance costs. The cold - chamber die - casting machine has a high equipment cost, but the maintenance cost is low during normal operation.Understanding these differences helps enterprises rationally select die - casting equipment according to their own needs and production goals, thereby improving production efficiency and benefits.

    In modern manufacturing, the hot-chamber die-casting machine is an indispensable key equipment, especially playing a huge role in the precision casting of non-ferrous metals.     The hot-chamber die-casting machine operates based on a unique principle. Its pressure chamber is connected to the melting furnace, and the molten metal is directly in the pressure chamber. During the die-casting process, the injection ram directly presses the molten metal into the die cavity at high speed to complete the molding. This design enables a fast and stable filling process of the molten metal, greatly improving production efficiency.      Compared with the cold-chamber die-casting machine, the hot-chamber die-casting machine has obvious advantages. On the one hand, its operation process is simpler. There is no need to scoop the molten metal before each die-casting operation, reducing manual intervention and labor intensity. On the other hand, the hot-chamber die-casting machine has a faster production speed. It can manufacture a large number of castings in a short time, and the quality of the castings is stable, with high dimensional accuracy and good surface finish. It is suitable for manufacturing various small and precision metal parts, such as electronic components and auto parts.     With its unique working principle and remarkable advantages, the hot-chamber die-casting machine occupies an important position in the manufacturing industry, providing strong support for the high-efficiency production of modern industry.

Recently, the two sessions of Anhui Province were successfully held. Chen Guolong, member of the Anhui Provincial Committee of the Chinese People's Political Consultative Conference and Secretary of the Party Committee of Bengbu University, delivered an important speech on promoting local universities to serve the high-quality development of the economy and society. As a member of Bengbu Longhua Die Casting Machine Co., Ltd., we are deeply inspired and full of expectations for the prospects of school-enterprise cooperation. Secretary Chen Guolong mentioned in his speech that Bengbu University will closely connect with local industrial needs, strengthen school-local and school-enterprise cooperation, and promote the transformation of scientific research results driven by scientific and technological innovation. This statement is highly consistent with the development needs and innovation direction of our company in the fields of intelligent manufacturing and die-casting technology. As an applied undergraduate university with "engineering" as its main focus, Bengbu University's talent resources and scientific research capabilities are undoubtedly an important support for the upgrading of local industrial technology. In recent years, the cooperation between Bengbu Longhua Die Casting Machine Co., Ltd. and Bengbu University has gradually deepened, and the two sides have carried out a number of technical research and development projects in the field of die-casting machines. Including cloud platform control systems based on die-casting machine automation production lines, new die-casting machine fault diagnosis and remote monitoring systems, and die-casting machine control and fault diagnosis systems based on machine learning. These projects not only promoted the breakthrough of the company's core technology, but also provided a fresh practical scenario for the academic research of Bengbu University, and realized the seamless connection of "production, learning and research". In particular, in projects such as the linkage control system of die-casting manipulators and die-casting machines, and the die-casting machine data monitoring system based on Internet of Things technology, the scientific research team of Bengbu University demonstrated excellent technical problem-solving capabilities. With the support of their algorithms, the intelligence level of our die-casting equipment has been significantly improved, and the market competitiveness of our products has been greatly enhanced. These achievements fully reflect the concept of "technological innovation as the engine" advocated by Secretary Chen. In the future, we hope to further deepen cooperation with the school under the guidance of the concepts of "establishing morality and cultivating people" and "serving local industrial development" of Bengbu University, and explore more die-casting technology solutions based on cutting-edge technology. For example, in the fields of artificial intelligence, b...

Dear Clients and Friends, The Spring Festival is coming, according to the company's arrangement, the Spring Festival holiday in 2025 will be from January 26 to February 2, a total of 8 days. During the holiday, all employees of the company will reunite with their families to celebrate the New Year. However, in order to better serve customers, our mailbox will be used normally during the period, if you have any questions or needs, you can contact us at any time through the following mailbox: info@longhuamachine.com sales@longhuamachine.com We know that the support and trust of our customers is the biggest driving force for us to move forward. In 2025, we will provide you with better products and services, thank you again for your support and companionship! Bengbu Longhua Die Casting Machine Co., Ltd. looks forward to working with you to create a brilliant future! I wish you all a happy Chinese New Year and a happy family! Bengbu Longhua Die Casting Machine Co., Ltd

Warm congratulations: Bengbu Longhua becomes Member of China Foundry Association！ Bengbu Longhua Die Casting Machine Co., Ltd. (national high-tech enterprise/established in 1982, our company specializes in the production and development of high-speed and high-precision AI die-casting machines (Vice President Unit of Anhui Chamber of Import and Export/Permanent Member and Director Unit of Hong Kong Foundry Association/Member Unit of China Foundry Association). Since 2013, our company has actively responded to the great call initiated by the state to cooperate with large institutes to develop new high-tech products! Our company has successively cooperated with "Hefei Institute of Chinese Academy of Sciences" * "Bengbu Univesity" * "Anhui Institute of Science and Technology" and other large institutes to jointly develop: "High-speed and high-precision die-casting machines and die-casting robots/major scientific and technological projects"! Project The research and development has won the following honors: 13 national invention patents/93 national utility model patents/6 computer software copyright certificates/"1 certificate for the first set of major technical equipment in Anhui Province"/"1 certificate for national intellectual product implementation"/"27 certificates for scientific and technological achievements in Anhui Province"/"5 Longhua trademark certificates"/"2 EU CE certificates/Longhua die-casting machine/robot", "artificial intelligence cold chamber die-casting machine national standard drafting unit", "Hong Kong Foundry Association permanent member/council unit" and other honors. Up to now, Longhua die-casting machines have been exported to 32 countries and regions/namely: Brazil, Egypt , South Africa, Vietnam, Pakistan, Bangladesh, Uruguay, India, Russia, Uzbekistan, Turkmenistan, Kazakhstan, Kyrgyzstan, Tajikistan, Iran,  North Korea, Ecuador, the United States, the United Kingdom, Italy, South Korea, Algeria, Mexico, Azerbaijan, Taiwan Province of China and other countries and regions. Longhua's "high-speed and high-precision AI die-casting machine" and "die-casting robot" help the country to become a technological power and make the world fall in love with Made in China! 

The application of new aluminum alloys in die casting is mainly reflected in its excellent mechanical properties, heat treatment effects, casting properties, welding characteristics and corrosion resistance. New aluminum alloys such as AlSi10MnMg, AlSi7MnMg, AlSi9MnMoZr, etc. have achieved sustainable development by incorporating high recycling rates and minimizing carbon footprint designs. These alloys have detailed carbon footprint calculations and explored the results of phase simulations, considering the sources of primary and recycled aluminum. Characteristics of new aluminum alloys The new aluminum alloys have the following characteristics: · Mechanical properties: high strength and good static and dynamic mechanical properties. · Heat treatment effects: some alloys can achieve optimal performance without heat treatment, reducing resource consumption and carbon footprint in the manufacturing process. · Casting performance: The new aluminum alloy has excellent casting performance and is suitable for various complex die-casting structures. · Welding properties: good welding properties, suitable for die castings that require welding. · Corrosion resistance: excellent corrosion resistance, suitable for applications in various harsh environments. These new aluminum alloys have the potential to redefine high pressure die casting (HP-DC) structures by enabling larger, thinner and higher integrity castings.

The production process of alloy die-casting parts is as follows: the raw materials are transported to the factory by truck in the form of aluminum ingots, and transferred to the aluminum ingot storage area in the workshop by forklift. The smelting furnace melts the raw materials into aluminum liquid and then transfers them to the holding furnace. The feeder takes the materials from the holding furnace and feeds them to the die-casting machine. After the die-casting machine is die-cast, the robot takes the parts and carries out product inspection, water cooling, slag bag removal, laser coding, and material cake removal. After passing the inspection, the parts are taken off the line from the die-casting island. After deburring and X-ray inspection, the qualified parts are transported to the machining area, and the unqualified parts enter the waste area and wait to be cut and returned to the furnace for use. The hot mold parts produced when the equipment is started and the material cakes cut under normal production conditions can be crushed and used as recycled materials. The supporting equipment of the die-casting unit includes: spraying robot and spraying system, picking robot and picking system, product inspection device, product cooling water tank, slag removal device, plasma cutting (or punching method of large press and die), orthopedic device, coding station, spot cooling machine, vacuum machine, mold temperature control system, mold temperature data monitoring feedback system and oil collector, etc., which form a complete system with the die-casting machine. The layout and quantity of peripheral equipment should be determined according to the process requirements of specific products, and the production rhythm should match the die-casting machine. In order to obtain the maximum space utilization, the most efficient logistics route, the best production process and the shortest production rhythm, all the equipment of the above die-casting units must be reasonably laid out.

Heavy Exhibition Notice! Bengbu Longhua Die Casting Machine Co., Ltd. is about to debut at the Aquaflame by aquatherm moscow & Airvent 2025！ Exhibition time: February 4th to February 7th, 2025 Venue: Crocus Exhibition Hall, Moscow, Russia Booth Number: Hall 14 B7145 Welcome to our booth to explore the future of the HVAC (radiator) industry together! Longhua die-casting machine, casting golden brilliance! Важное объявление о выставке! Компания Bengbu Longhua Die Casting Machine Co., Ltd. примет участие в Международной выставке отопления, сантехники, водоочистки, оборудования для бассейнов и вентиляции в России 2025 года! (Aquaflame by Aquatherm Moscow & Airvent 2025) Даты выставки: 4 февраля – 7 февраля 2025 года Место проведения: Россия, Москва, выставочный центр «Крокус Экспо» Номер стенда: зал 14, стенд B7145 Приглашаем посетить наш стенд и обсудить будущее отопительной отрасли (радиаторы) вместе с нами!   Longhua Die Casting Machine – создаем блестящее будущее вместе!