North One World's largest single ductile iron machine tool casting successfully poured

Nearly 170 tons of 1360 degrees Celsius molten iron, divided into 5 ladle, a command, a huge torrent of water like a volcanic eruption down, reflecting the entire red casting workshop. Ren Haicheng, the general manager of Beiyi Heavy Machinery Casting Co., Ltd. (hereinafter referred to as Beiyi Heavy Casting), was finally loose. “The molded casting is 20.5 meters long and weighs 145 tons. This is a new height. It is another round of sprint launched by the North Heavy Caster to the new world record after the successful casting of the same type of Machine tool in February this year. , indicating that our ability to produce more than 100 tons of QT600-3 brand large ductile iron machine tool castings has been further consolidated." Ren said with emotion.

Experts from China Foundry Association Jia Chengbing, Wenping full-time vice chairman and other experts in the foundry industry made a special trip. After 9 months, they witnessed the record refresh of the world's largest single-iron duct machine castings. Vice Chairman Wenping said, “The five casting packages simultaneously cast a single casting. The requirements for hot metal conditioning and microstructure are very high, and the physical and chemical properties must be consistent to ensure the quality of the casting after molding. The accumulation and breakthrough of technical level, first-line operation experience, and factory site management ensured the successful pouring of large machine tool castings."

The breakthrough of key basic components helps the independent research and development capabilities of the whole machine
Casting is the foundation of the equipment manufacturing industry. The key technology of casting and the breakthrough of basic technology are the starting point of independent innovation of the whole machine. The 145-ton vertical beam casting of the North Heavy Recasting Casting is a key component on heavy-duty machine tools. Its stringent elongation and tensile strength determine the accuracy, life and stability of the machine.

With the development of nuclear power equipment, large ships, aerospace, mining machinery, railway construction, automobile industry, environmental protection equipment and military products, the demand for heavy-duty and super-heavy-duty machine tools is increasing rapidly, and the performance of heavy-duty and super-heavy-duty machine tools is numerically controlled. High-speed, high-precision, and multi-functionalization have developed rapidly. According to reports, the previous machine tool castings generally do not exceed 10 meters in length and weigh between 20 tons and 50 tons. At present, the length of castings required for heavy-duty machine tools has exceeded 20 meters, and the single weight of castings has exceeded 140 tons. In addition, it is accompanied by an increase in the complexity of the casting structure. For example, the numerical control gantry boring and milling machine beam, which used to be connected by three segments, each weighing about 40 tons. The left and right vertical columns of the CNC gantry boring and milling machine are composed of two parts, the weight of each piece is about 50 tons. At present, these products can be cast in one time to achieve one-piece production.

"Northern one casting", casting "heavy" fame
As one of the largest modern professional casting companies in North China, Beiyi Heavy Machinery Casting Co., Ltd., in addition to meeting domestic demand, is also exported to Japan, Germany, the United States, Finland, Russia and other countries. As the first subsidiary of Beiyi Machine Tool to relocate and renovate, Beiyi Heavy Casting produced the first furnace of molten iron on February 16, 2001, casting the first batch of castings; and ten years later, the plant has owned More than 3,000 sets of professional casting tooling, the pit shape area is 2000m2, the annual design production capacity is 50,000 tons, and various castings of HT200~HT350, QT400~QT700 can be produced, and the maximum casting weight can reach 160 tons.

Beijing First Machine Tool Plant, the parent company of Beiyi Recast, has developed its large-scale, diversified and compounded CNC gantry boring and milling machine products after the acquisition of the famous German brand WALDRICH-COBO. The demand for heavy-duty machine tools has brought a steady stream of large-scale casting orders, providing many practical opportunities for Beiyi Recast's own training and technological breakthroughs.

A successful large-scale casting product makes Beiyi Recaster more calm in the future. “Everything has just opened its head. In the future, our performance in the field of heavy and super heavy castings is worth looking forward to.” Obviously, General Manager Ren Haicheng will never let go of the market opportunity.

With the development of nuclear power equipment, large ships, aerospace, mining machinery, railway construction, automobile industry, environmental protection equipment and military products, the demand for heavy-duty and super-heavy-duty machine tools is increasing rapidly, and the performance of heavy-duty and super-heavy-duty machine tools is numerically controlled. High-speed, high-precision, and multi-functionalization have developed rapidly. According to reports, the previous machine tool castings generally do not exceed 10 meters in length and weigh between 20 tons and 50 tons. At present, the length of castings required for heavy-duty machine tools has exceeded 20 meters, and the single weight of castings has exceeded 140 tons. In addition, it is accompanied by an increase in the complexity of the casting structure. For example, the numerical control gantry boring and milling machine beam, which used to be connected by three segments, each weighing about 40 tons. The left and right vertical columns of the CNC gantry boring and milling machine are composed of two parts, the weight of each piece is about 50 tons. At present, these products can be cast in one time to achieve one-piece production.

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