液壓機是一種以液體為工作介質，用來傳遞能量以實現各種工藝的機器。液壓機除用于鍛壓成形外，也可用于矯正、壓裝、打包、壓塊和壓板等。液壓機包括水壓機和油壓機。以水基液體為工作介質的稱為水壓機,以油為工作介質的稱為油壓機。液壓機的規格一般用公稱工作力（千牛）或公稱噸位（噸）表示。鍛造用液壓機多是水壓機，噸位較高。為減小設備尺寸，大型鍛造水壓機常用較高壓強（35兆帕左右），有時也采用 100兆帕以上的超高壓。其他用途的液壓機一般采用 6～25兆帕的工作壓強。油壓機的噸位比水壓機低。
Hydraulic press is a kind of machine which uses liquid as working medium and is made according to Pascal principle to transfer energy to realize various processes. The hydraulic press is generally composed of this machine (host), power system and hydraulic control system. Hydraulic press classification has valve hydraulic press, liquid hydraulic press, engineering hydraulic press.
Introduction to hydraulic press
Hydraulic press (also known as: Hydraulic Press) hydraulic press is a kind of machine which uses hydrostatic pressure to process metal, plastic, rubber, wood, powder and other products. It is commonly used in pressing process and pressing forming process, such as forging, stamping, cold extrusion, straightening, bending, flanging, sheet metal drawing, powder metallurgy, press fitting and so on.
Its principle is to use Pascal's law to make use of liquid pressure transmission machinery, many kinds. Of course, the use is fundamental
There are many kinds of things that need to be done. For example, according to the type of liquid transmission pressure, there are two major types of oil press and hydraulic press.
The total pressure produced by hydraulic press is large, which is often used for forging and stamping. Forging hydraulic press is divided into die forging hydraulic press and free forging hydraulic press. Die forging hydraulic press should use die, while free forging hydraulic press does not need die. The first 10000 ton hydraulic press made in China is a free forging hydraulic press.
Application of hydraulic press
Hydraulic press is a kind of machine which uses liquid as working medium to transfer energy to realize various processes. Hydraulic press is not only used for forging forming, but also for straightening, pressing, packing, pressing block and pressing plate. Hydraulic press includes hydraulic press and hydraulic press. The water-based liquid as the working medium is called the hydraulic press, and the one with oil as the working medium is called the hydraulic press. The specification of hydraulic press is generally expressed by nominal working force (KN) or nominal tonnage (ton). Forging hydraulic press is mostly hydraulic press with high tonnage. In order to reduce the size of the equipment, high pressure (about 35 MPa) is often used in large forging hydraulic press, and sometimes the ultra-high pressure above 100 MPa is used. The working pressure of hydraulic press for other purposes is 6 ~ 25 MPa. The tonnage of hydraulic press is lower than that of hydraulic press.
This equipment is especially suitable for bending, forming, flanging and other processes of center load parts. Equipped with blanking buffer device, it can also be used for punching and blanking. It is the first choice for shipbuilding industry, pressure vessel industry and chemical industry.
It can be used for drawing forming, turning over, bending and stamping of sheet metal parts, and can also be used for general pressing process. It can also be used for blanking buffer, punching, moving table and other devices according to the needs of users.
In addition to forging, the three beam and four column hydraulic press can also be used for correction, press fitting, packing, pressing block and pressing plate.
It can also be used for the pressing process of shaft parts, profile calibration, crimping, press mounting, bending, shaping, embossing, nesting, stretching and plastic material pressing process of plate parts, such as stamping, bending, flanging and thin stretching, and also can be used for the pressing and forming operations of alignment, pressing, plastic products and powder products. Because of its wide range of applications, it is also known as universal hydraulic press