1. The metal deformation condition is good. Because the rotary wheel is in close contact with the metal during the spinning, the contact area is small and the unit pressure is high, which can reach 2500-3500 MPa or more. Therefore, the spinning is suitable for processing materials with high strength and difficult deformation. Moreover, the total deformation force required is small, so that the attack rate consumption is greatly reduced. Processing the same size of the workpiece, the tonnage of the spinning machine is only about 1 / 20 of the tonnage of the press.

2. A wide range of products, according to the capacity of the spinning machine can make large diameter thin-walled pipe, special pipe, variable-section pipe and spherical, hemispherical, elliptical, curved mother-shaped and almost all with steps and varying wall thickness Rotary components such as rockets, missiles and satellite nose cones and casings; submarine penetrating seal rings and torpedo shells, radar mirrors and searchlight enclosures; jet engine fairings and prime mover parts; hydraulic, compressor casings and cylinders Turbine shaft, nozzle, TV cone, combustor cone and bellows; dryer, mixer and washing machine drum; shallow disc, disc, hemispherical head; milk tank and hollow core thin walled daily necessities Wait.

3. High material utilization rate and low production cost. Compared with machining, spinning and machining can save materials by 20% to 50%, as high as 80%, and reduce costs by 30% to 70%.

4. The product performance is significantly improved, and the material structure and mechanical properties of the material after spinning are changed, and the grain size is fine and formed into a fibrous shape. Tensile strength, yield strength and hardness are improved, strength can be increased by 60%-90%, and elongation is lowered.

5. The surface roughness of the product is low and the dimensional tolerance is small. The surface roughness of the spun-processed product is generally 3.2 to 1.6 um, preferably 0.4 to 0.2 um, and can be 0.1 um after multiple spinning. The spinning product can achieve a small wall thickness tolerance, such as φ300 MM. The tolerance is 0.05mm, and the tolerance is 0.12 when φ1600mm.

6. An important feature of metal spinning is the production of a seamless seamless hollow body, which eliminates the weld-related discontinuities, strength reduction, brittle fracture and tensile stress concentration.

7. Compared with metal stamping and sheet metal stamping, metal spinning can greatly simplify the equipment used in the process. Some parts that require 6 to 7 stampings can be manufactured by spinning once, and the metal spinning machine has the same ability. The price of the stamping machine is half.

8. The metal pressure method can produce ultra-wide plates. The basic method is to cut the spinning cylindrical parts along the direction of the bus bar. In foreign countries, it is not a large equipment to spin a φ2m cylindrical spinning machine. It is easy to manufacture a 6m wide plate using such a device, but it takes a relatively large rolling mill to produce a 3m wide plate by a conventional rolling method. The United States uses the spinning process to produce ultra-wide sheets with a width of 7.5 m and a length of 9 m.

9. During the spinning process, defects such as slag inclusions, interlayers, cracks, and blisters are easily exposed due to the approximately point-by-point deformation of the spunbond blank. In this way, the spinning process is also attached to the inspection of the product.

10. Wide source of blanks, hollow stampings, extrusions, castings, welded parts, machined forgings and rolled parts, and round plates are used as blanks, and can spin titanium, molybdenum, tungsten, tantalum, niobium Metals and other alloys that are difficult to deform.