A hydraulic press is a machine that uses liquid as a working medium to transfer energy to achieve various processes.
In addition to forging forming, hydraulic presses can also be used for correction, press fitting, packing, briquetting and pressing. The hydraulic press includes a hydraulic press and a hydraulic press. A water-d liquid is used as a working medium, which is called a hydraulic press, and an oil as a working medium is called a hydraulic press. The specifications of hydraulic presses are generally expressed in terms of nominal working force (kilograms) or nominal tonnage (tons). The hydraulic press for forging is mostly a hydraulic press with a high tonnage. In order to reduce the size of the equipment, large forging hydraulic presses usually use higher pressure (about 35 MPa), and sometimes use ultra high pressure of 100 MPa or more. Hydraulic presses for other purposes generally use a working pressure of 6 to 25 MPa. The hydraulic press has a lower tonnage than a hydraulic press. The common models of hydraulic presses are: double-column, four-column, eight-column, welded and multi- steel strip winding , and medium and small vertical hydraulic presses are also C- type.
The applicable materials for the hydroforming process of the four-column hydraulic press include carbon steel, stainless steel, aluminum alloy, copper alloy and nickel alloy. In principle, the materials suitable for cold forming are suitable for the hydroforming process of the four-column hydraulic press.
The four-column hydraulic press hydroforming process has a wide range of applications in the automotive, aerospace, aerospace and pipeline industries. The four-column hydraulic press hydroforming process is mainly applicable to circular, rectangular or profiled hollow structural parts that vary along the axis of the component, such as the exhaust of a car. System shaped pipe fittings; non-circular cross-section hollow s, such as engine brackets, instrument panel brackets, body hollow shafts and complex fittings.
The four-column hydraulic machine mainly has four working processes: the main cylinder descends, the main cylinder returns, the ejection cylinder is ejected, and the ejecting cylinder is retracted. The system is divided into two states: manual and automatic. In the automatic operation, the four working processes are cyclically performed, and each two processes have a certain delay when switching; during manual operation, the operation and stopping of each process can be manually controlled. .
The four-column hydraulic press is widely used in industry, but the manual on-site control has certain danger and misoperation. d on the automatic control system of the four-column hydraulic press, the computer is used as the upper computer, and the hydraulic machine is remotely and self-powered through the PLC. control. This not only improves the production efficiency of the four-column hydraulic press, but also ensures the safe and reliable production of the four-column hydraulic press, which is undoubtedly an improvement for industrial production.