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Ring rolling machine drives the development of ring forgings

In recent years, energy conservation and emission reduction has become a key project in my country in order to protect our common living homeland from being corroded by carbon dioxide. With the rapid growth of wind power projects in my country, the demand for key wind power components such as wind power flanges and ring forgings has also increased. , The appearance of ring rolling machine has accelerated the production, size and quality of ring forgings. After free forging and die forging, a new process-rolling ring appeared.

Ring rolling machine drives the development of ring forgings:

Rolling ring is a kind of forging classification, mainly using rolling and reaming. When free forging is used to grind the ring, the horse bar is mainly used to grind the ring. The stress-strain condition of the horse bar mill ring is similar to the elongation, which is different from the elongation of the long axis. It is the elongation of the ring blank along the circumferential direction, which is partially loaded and the overall force is applied. The metal in the deformation zone flows along the tangential direction and the width direction when the horse bar is reamed. When the horse bar grinds the ring, the metal in the deformation zone mainly flows along the tangential direction, and the inner and outer diameters increase. The forging of the ring on the horse bar is generally thinner, so the resistance to the tangential flow of metal in the deformation zone at the outer end is much smaller than that in the width direction. The contact surface between the horse bar and the forging is arc-shaped, which is conducive to the tangential flow of metal. Therefore, the dimensional change of the forging is that the wall thickness is thinned, the inner and outer diameters are enlarged, and the width (height) direction is slightly increased when the horse bar ring is rolled. Therefore, the reaming on the horse bar can forge thin-walled forgings.

The forging process of forging ring gears and gear blanks with ring rolling machines mainly includes the following processes: thickening, elongating, punching, and reaming. The difference between free forging and ring rolling process is mainly in the process of hole expansion. Freedom generally uses a horse bar to ream the hole.


Has accumulated rich experience in production. The following are the advantages of the ring rolling machine to share with you:

1. The material utilization rate of ring rolling machine is high. The shape of the ring produced by the ring rolling machine is close to the finished product, and the machining allowance is small. In addition, the shape of the rings produced by the ring rolling machine is regular, which is beneficial to the later machining and can also reduce the cost of machining.

2.the product quality is good. The metal fiber of the ring produced by the ring rolling machine is continuously distributed along the circumferential direction, which is suitable for the force and wear of the part during use.

3. High production efficiency. The production of ring parts by ring rolling machine is similar to static rolling, with basically no impact and vibration, low noise, easy operation, high degree of mechanization and automation, and greatly reduced labor intensity.


Henan Jinzhen Equipment Co., Ltd. specializes in providing forging and metallurgical equipment, including ring rolling machines, steel ball skew rolling machines, scrap metal balers, vibrating feeders, etc. The products have been exported to more than 80 countries and regions. We have 20 years of export experience. We have a huge sales system and perfect after-sales service to ensure that every machine that leaves the factory meets the national quality requirements.