Bengbu College awarded Bengbu Longhua Zhou Wenping "Distinguished Professor" Certificate of honor! On November 9, 2022, Chen Guolong, member of the Party Committee and Secretary of Bengbu University (Doctor of Science, Member of the Communist Party of China, postdoc, professor and master supervisor of Institute of Software of Chinese Academy of Sciences), led by Huang Yinghui, Dean of School of Computer Science of Bengbu University, Wu Jie, director of Scientific Research Department, and Dr. Li Xianwei, computer expert [Major of Information and Communication (Computer System and Network Engineering) of Waseda University, Japan; The delegation arrived at Bengbu Longhua for a field visit to the cooperation project between the two sides. Both sides first confirmed the cooperation relationship between the institute and the enterprise, and signed the cooperation agreement of "Bengbu College Student Internship Base" with Longhua. At the same time, Mr. Chen Guolong, Secretary of the Party Committee of Bengbu College, awarded the title of "Distinguished Professor" to Mr. Zhou Wenping of Bengbu Longhua Die Casting Machine Co., LTD. We hope that both parties will further implement the national policy of "Institute, enterprise, industry, university and research cooperation" based on the vision of mutual benefit and mutual sharing of resources.

Warm congratulations! Bengbu Longhua and Bengbu College signed the R&D cooperation agreement of "Ali Cloud Control System for Die Casting Robot"! On November 9, 2022, Chen Guolong, member of the Party Committee and Secretary of Bengbu University (Doctor of Science, Member of the Communist Party of China, postdoc, professor and master supervisor of Institute of Software of Chinese Academy of Sciences), led by Huang Yinghui, Dean of School of Computer Science of Bengbu University, Wu Jie, director of Scientific Research Department, and Dr. Li Xianwei, computer expert [Major of Information and Communication (Computer System and Network Engineering) of Waseda University, Japan; The delegation arrived at Bengbu Longhua and held an on-site signing ceremony with Bengbu Longhua on the R&D cooperation of "Ali Cloud Control System of die casting robot". The die casting machines and automation products of Longhua Technology have been exported to 27 foreign countries and regions so far. Due to the impact of the epidemic, it is inconvenient for technical personnel to go abroad. In order to better and faster solve the problems encountered by customers in the process of product operation, improve the accuracy of after-sales service and the controllability of product operation, Longhua has carried out R&D cooperation with Bengbu College on the project of "Ali Cloud Control System for Die-casting Robot". The successful R&D of this project enables our technicians to directly monitor the operation of products from the cloud, greatly improving the efficiency of our products and services, solving problems for customers, and making our products win the world's reputation.

Longhua die casting robots can automate the die cast process by quickly and efficiently pouring molten metal into a reusable mold. Die casting machines are used in a variety of industries and while material handling is a natural application, casting and foundry applications can be challenging.  Die casting Technologies Center devised a way around the problem of how starting up a series and development work can tie up machine capacity instead of allowing it availability for actual production. The company takes on outsourced tasks to get the die cast parts ready for production. Three Longhua 50KG die casting robots were used to transform an ordinary die casting cell into a fully automated manufacturing cell for a vehicle transmission. The Longhua die casting robots can remove parts, spray molds with a parting agent, and load thixocasting billets. They are mounted on top of the machine and spray the mold with a parting agent as soon as the controller releases the part.  The robot grips the casting by the sprue and removes it from the mobile half of the mold after the mold of the die casting machine opens. The ejectors in the mold eject the casting after the robot controller switches the linear unit to soft axis mode. The robot holds the casting up to an inspection station with sensors to check whether the part is complete. Defective parts are sprayed with a red dot. The robot then sprays and blow dries the halves of the mold. Longhua die cast and foundry robots are designed for a wide variety of applications, including casting extraction, core assembly, die spray cooling and lubrication, dross skimming, and molten metal ladling.

The difference and connection between hot chamber die casting and cold chamber die casting Cold chamber die casting and hot chamber die casting are variations of high pressure die casting process. Therefore, the hot chamber casting and cold chamber casting processes are very similar. However, their scope of application is different. This article briefly discusses the differences between these two processes in detail. Temperature range of hot chamber die casting and cold chamber die casting Hot chamber equipment for processing low-temperature non-ferrous alloys. The maximum temperature of alloys that can be safely die-cast in a hot chamber machine is around 450°C, including alloys such as zinc, magnesium and lead. In contrast, cold chamber equipment deals with high temperature non-ferrous alloys. It usually handles metal alloys with temperatures of 600°C or above, including alloys such as aluminum, copper, and brass. The position of the furnace The alloy melting furnaces are located in different locations and are used for both processes. The hot chamber device has a built-in furnace to melt the metal. Therefore, the metal is delivered directly through the gooseneck to the mold cavity. In the cold chamber die-casting plant, the melting furnace is located externally. The molten metal must be delivered to the machine using either automatic or manually operated ladles. Production time Hot chamber machines provide significantly higher casting cycles than cold chamber machines. Although both devices work very similarly, cold chamber casting has a longer cycle due to manual handling of melted metal. Die life The hot and cold room machines are built of the same materials. Low melting point alloy is used in hot chamber casting, which has little influence on the die. So, it lasts longer. In contrast, die conditions for cold chamber machines degrade faster because the molten metal has a higher temperature. The die casting alloy is melted in the furnace located inside the equipment, and the die casting alloy is melted in a separate furnace located outside the equipment. The melting and casting cycle of the die casting alloy is significantly shortened, so it has a higher production capacity. Therefore, the production capacity is smaller, suitable for high melting point alloys, has a shorter tool life and requires least safety measures requiring more safety measures. Commonly used metal alloys are zinc, lead and so on. Commonly used metal alloys are aluminum, copper, brass, magnesium and so on. Longhua provides exclusive hot and cold chamber die casting services Bengbu Longhua Die Casting Machine Co., LTD is a die casting manufacturing company with strong core competitiveness in China. We have independent intellectual property rights, complete production workshop and experienced technical personnel, equipped with advanced hot and cold room equipment. Below we provide an overview of our hot chamber die casting services and cold chamber die casting services. Cold...

About high pressure die casting process High pressure die casting can produce castings quickly and economically. These castings can be composed of various holes, threads and notches, which are characterized by high dimensional accuracy and good surface finish. They make the metal economical and require little or no surface treatment. The principle of pressure die-casting is to press molten metal into a mold or die under considerable pressure. Machines used for this purpose operate on one or both systems: Hot chamber die casting machine (for metals with low melting point) Cold chamber die casting machine (for metal with high melting point) In a hot-chamber die-casting machine, the metal is kept liquid in a crucible inside the machine, and the pressure chamber that feeds the metal into the mold is located in the metal groove. Such machines can be operated pneumatically, or more usually by the action of a stamping piece to develop pressure. The cast metal of the cold chamber machine is kept liquid in the holding furnace, transferred from the holding furnace to the pressure chamber by a spoon or a special automatic device, and pressed into the mold by a stamping piece. Some simple machines are operated by hand, but in order to increase productivity, fully automatic machines are more commonly used. In pressure die casting, the complex multi-part design of precision manufactured dies, and therefore very expensive, is exposed to harsh working conditions with continuous changes in high pressure and temperature. For the production of zinc and zinc-alloy castings, molds can be made of unalloyed steel, but for magnesium, aluminum, copper, and alloys of these metals, molds are generally made of hot-worked steel, which is much more durable. Another development of high-pressure die casting is vacuum die casting. It produces castings with a better finish than ordinary high pressure castings. There are two systems in which the mold is either enclosed in a hood that draws out the air, or an insulated furnace is installed beneath the casting machine so that metal is drawn into the mold and compacting inside it while the air is drawn out. A process for making cast iron castings has been developed based on this principle.

First, what is die casting? Die casting is a process of using pressure to inject molten metal into a mold and then obtaining a cast product with a precise shape or geometry as the internal shape of the mold. In this article, we will talk about the equipment of this process, what is a die casting machine, the common type of die casting machine, and their mechanism and choice. Two, what is the die casting machine? Die casting machine is used for metal casting process, through the die casting machine to inject molten metal into the mold cavity, when the metal cools and solidifies, it will form the shape of a die casting, which is a manufacturing method to obtain metal castings such as aluminum or zinc die casting. Three, die casting machine type: Die casting machines can be divided into different categories according to different classification methods such as use and size. Generally speaking, die casting machines can be divided into two kinds: hot chamber and cold chamber. 1.1. Hot chamber die casting machine The hot chamber machine has a pressure chamber connected to the mold cavity to which molten metal can flow continuously. When the cylinder of the chamber returns to its unpressured position, the molten metal is fed into the casting mold. A crucible for melting metal is attached to the machine, and a piston mechanism for hydraulic injection of metal into the mold is installed in the crucible. Some hot chamber die-casting machines use compressed air to press metal directly into the mold, without the need for a piston mechanism. The injection mechanism is immersed in molten metal, so it is necessary to avoid chemical corrosion or corrosion of the immersion injection system. Hot chamber die casting machine is mainly used for casting zinc, tin and other low melting point alloys. 1.2. Advantages of hot chamber die casting machine -- High productivity - Improve surface finish - Capable of producing complex castings - Tight dimensional tolerances - Suitable for zinc die casting 2.1 Cold chamber die casting machine In the cold chamber machine, metal melted from a separate holding furnace is scooped into the cold chamber sleeve after the mold is closed. The metal is then pressed into the mold, which is opened to solidify, and the cast will be injected. The metal is melted outside the machine and added to the compression chamber. It can be divided into vertical cold chamber die casting machine and horizontal cold chamber die casting machine according to the motion direction of compression piston. The molten metal is removed from the furnace of the vertical cold chamber die casting machine and injected into the compression chamber. The metal is injected into the mold by a compression piston, and the remaining metal is pushed out by another piston. The horizontal cold chamber die casting machine works in the same way as the vertical die casting machine, except that the direction of piston movement is horizontal. Most modern die casting machines are horizon...

In die casting, there are two main processes - hot chamber and cold chamber. The technology you choose depends on your project specification and the type of results you seek to achieve. In this guide, we'll discuss the former method, including how it works, what metals are used, and what advantages it has compared to its cold chamber counterpart. First、what is hot chamber die casting? Die casting is a permanent die making process pioneered in the early 20th century that uses large amounts of pressure to push molten metal through the die. Due to the large amount of pressure applied, this method can produce castings with a great degree of surface detail, excellent dimensional accuracy, and extremely thin wall-sometimes as small as half a millimeter. Industrial metal castings vary widely in size, from as small as 50 pounds or so. Parts manufactured using this process include tools, machine parts, carburetors, motors, various shells, and toys. Second, about hot chamber die casting In hot chamber die casting, the metal is heated in an attached die casting machine. These casting machines, also known as gooseneck machines, feature built-in furnaces that heat the metal until it reaches a molten state. This process uses a hydraulic piston to force molten metal from the furnace into the mold. This type of die casting is a relatively fast process. The hot chamber die casting process is used for high productivity applications requiring large output. In cold chamber casting, the casting machine does not heat the metal. Instead, the molten metal must be poured into the chamber either manually using a ladle or with an automated ladle system. Once the metal is injected, a hydraulic piston forces the molten metal into the mold under high pressure. 3. Materials for hot chamber die casting. Because hot chamber die casting has an internal melting point, manufacturers of hot chamber die casting machines recommend the use of metals with lower melting points. This is so that the metal will not dissolve or corrode the metal of the machine under heating or high pressure. For example, machine parts such as plungers are continuously submerged in molten metal. If the metal has too high a melting point, it will cause the plunger to continue to damage and lose its function. This may require expensive replacement. Materials such as aluminum have a higher melting point. The metal has a melting point of 1,220 degrees Fahrenheit, compared with 786 degrees for materials like zinc. Therefore, aluminum is not suitable for hot chamber die casting process. The most suitable materials for hot chamber die casting are zinc and magnesium alloys, which will be discussed in more detail below. Zinc: 1. Zinc has special hardness and strength, which can be used in many fields and is a good substitute for pressing, machining, manufacturing and stamping components. Zinc also has excellent structural integrity and wear resistance, which makes it ideal for highly complex, multifaceted shapes in th...

Warm Welcome "Chen Guolong, Secretary of the Party Committee of Bengbu College, went to Bengbu Longhua to inspect and guide the progress of the die-casting automation project" On August 15, 2022, Bengbu College Party Committee Member and Secretary Chen Guolong (CPC Member, Doctor of Science, Postdoctoral Fellow, Professor, Master Supervisor of the Institute of Software, Chinese Academy of Sciences) led the Dean of the School of Computer Science of Bengbu College, Huang Yinghui, Director of the Scientific Research Office, Wu Jie, Computer Expert Dr. Li Xianwei [Information and Communication (Computer System and Network Engineering) Major of Waseda University in Japan, Master Supervisor)] went to Bengbu Longhua to inspect and guide "the progress of the die-casting automation project jointly developed by Bengbu College and Bengbu Longhua". The project went through 1 After more than years of research and development and repeated trial production, all technical indicators of die-casting automation have reached GB/T31555-2015 national standards of the People's Republic of China, and some technical indicators have exceeded national standards. The intellectual property rights of die-casting automation are completely independent, and the degree of localization has reached 99%. During the joint R&D and production, this high-tech product has successively won 9 invention patents, 1 computer software copyright, and 1 integrated circuit diagram design certificate. Die-casting automation high-tech products have been sold to 27 foreign countries and regions. Due to the high degree of automation, high cost performance, low failure rate and simple operation, this product has been well received by new and old customers of Longhua. The birth of this product has greatly reduced the domestic The production and procurement costs of external die-casting manufacturers, due to the replacement of robots, directly reduce industrial accidents in the production process to zero, and at the same time increase foreign exchange reserves for the country and enhance the competitiveness of national brands in the international market. Replacing labor with robots is an inevitable trend in industrial automation! Photo: Member of the Party Committee of Bengbu College, Secretary Chen Guolong, Dean of the School of Computer Science Huang Yinghui, Director of the Scientific Research Office Wu Jie, computer expert Dr. Li Xianwei, etc.