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冷压液压机结构形式既可以是四柱结构，也可以是框架式结构，冷压工艺，即在常温下对金属材料进行挤压成形的过程。在冷挤压液压机的工作过程中，将金属材料放入模具中，通过高压油的作用，使金属材料发生塑性变形并被迫进入模具的型腔，最终形成所需的形状和尺寸。这一工艺要求液压机具备高精度的定位和运动能力，以确保产品的形状和尺寸精度。
冷挤压工艺能够在常温下实现材料的塑性变形，减少了热加工过程中的材料浪费，提高了材料的利用率；冷挤压液压机通常采用自动化控制，能够实现快速、连续的生产，由于冷挤压过程中材料的变形是在模具内完成的，因此产品的形状和尺寸精度较高，能够满足精密加工的需求，冷挤压液压机适用于多种金属材料的加工，包括铝、铜、钢等，且能够生产形状复杂、尺寸精确的产品。
Cold-pressed hydraulic presses are widely used in many fields, such as the automobile manufacturing industry, which is used to produce engine blocks, gears, bearings and other parts to meet the needs of the automobile industry for high-precision and high-strength parts. In the manufacturing process of mechanical products such as machine tools, tools and molds; In the aerospace field, cold extrusion hydraulic presses are used to produce high-precision and high-strength structural parts and parts; electronic products industry, with the trend of precision and miniaturization of electronic products, the cold extrusion hydraulic press has also been widely used in the manufacture of electronic components.
The four-column structure is simple and has good stability. It is widely used in various processes such as stamping, pressing, straightening, bending, flanging, sheet stretching, etc. The guide structure mainly adopts round guide sleeve on the four columns, which is simple and reliable; the frame structure has the advantages of strong anti-deflection load capacity and high precision, which has become the ideal choice for high-precision pressing and large-scale workpieces. The guide structure is guided by surface bonding on the side column, and the bonding area between the guide block and the side column is larger, and the anti-bias load capacity is stronger. In the event of partial load, the stability of the hydraulic press can be maintained, and it is suitable for high-precision pressing and large-scale workpiece applications.
The four-column equipment structure usually adopts a three-beam four-column structure, that is, the upper, middle and lower three beams and four columns form a rigid frame. This structure makes the overall stability of the equipment high. The columns and beams are the main load-bearing components. After optimized design, the appearance is beautiful and economical. The electrical system is mostly controlled by PLC, which can realize one-key operation. The system also has the function of holding pressure delay, which can be adjusted according to the process requirements. The modulus of the end face of the three beams of the main machine is large, which improves the rigidity of the three beams. Key components such as the main cylinder and the piston rod are manufactured with excellent forgings.
The frame-type equipment structure adopts a frame-type frame welded with integral steel plates, which has extremely high overall rigidity and compressive strength. The upper beam, sliding block, worktable and other components are welded with high-quality steel plates, and the welding stress is eliminated through high-frequency vibration to ensure the stability and durability of the body structure. The high-precision guide structure enables the frame-type hydraulic press to realize high-precision positioning and movement during the pressing process, which is more suitable for high-precision pressing and large workpieces, such as precision processing, mold manufacturing and other fields.
The cold extrusion process uses the principle of metal plastic deformation to apply strong pressure to the metal in the extrusion die cavity at room temperature to extrude it from the die hole or the gap between the convex and concave dies, so as to obtain the required shape and Size of parts. In this process, the metal blank is subjected to three-way compressive stress in the mold, plastic flow occurs, and finally deforms according to the shape of the mold cavity. Technological process: blank making-annealing treatment-cold extrusion forming-subsequent treatment.
Die design is the key to the success of the cold extrusion process. The shape, size and precision of the die cavity directly affect the shape, size and precision of the final part; in the process of cold extrusion, it is necessary to precisely control the pressure applied to the metal blank; good lubrication and cooling conditions are important for reducing the deformation resistance of the material, improving the carrying capacity of the mold and extending the service life of the mold. The cold extrusion process has the advantages of high production efficiency, high material utilization, high precision of parts and the ability to process complex shape parts. Therefore, it is widely used in automobile, machinery, electronics, aerospace and other fields to produce parts of various shapes and sizes, such as gears, bearings, connecting rods, housings, etc.
Shandong Zhongyou Heavy Industry Cold Press is highly efficient, high-precision and multi-functional, which significantly improves production efficiency and product quality and meets diversified processing needs.
The hydraulic presses designed and produced by Shandong Zhongyou Heavy Industry have undergone strict control and inspection one by one from the parts to the finished products. Strong strength, advanced technology and equipment, perfect detection means, pragmatic work style, and excellent whole process management, build the excellent quality of the company's products
Our Shandong Zhongyou Heavy Industry strictly controls the selection of raw materials, and has passed ISO certification and quality inspection standards. The products have been strictly tested and the quality is reliable, and tailor-made solutions for customers.