Upsetting method of large steel ingot for forging press

Abstract

The present invention is an upsetting method for a large steel ingot of a forging press. The forging press is equipped with a crane and a moving platform. Place it on the mobile platform; in the second step, use four grippers to hang the steel ingot with the cone-shaped tong handle on the lower upsetting plate; in the third step, use the manipulator throwing tongs to place the steel ingot tongs on the opposite side Align the center hole of the lower upsetting plate and erect it to a vertical position; the fourth step, the forging press performs the upsetting operation on the steel ingot blank through the upper upsetting plate and the lower upsetting plate; and the fifth step, the upsetting blank Turn over and place on the lower upsetting pan and return to the furnace. The present invention does not occupy the place where the upsetting material is placed, and the pinch marks on the surface of the steel ingot are significantly improved, avoiding unsafe operations when lifting and transporting large ingots for upsetting by driving, effectively preventing the hidden danger of the wire rope chute on the driving, and using straight billets for upsetting. ; Upsetting requirements can be met in the shortest time, which saves effective time and improves production capacity and product quality.

Description

technical field [0001] The invention relates to a production method for upsetting a steel ingot in the metallurgical industry, in particular to an operation method for upsetting a large steel ingot. Background technique [0002] Upsetting refers to the process of using pressure to reduce the height of the blank and increase the diameter or transverse dimension. This is the most basic deformation method in plastic forming. For example, upsetting is included in processes such as elongation, punching, and die forging. In the usual production process, in order to make the internal quality of the product meet the technical requirements, there must be a sufficient forging ratio. The size of the existing steel ingot limits the maximum specification it can produce. However, after the upsetting operation of the steel ingot, it can meet the requirements. Technical requirements for the production of large-scale products. [0003] Steel ingots of different specifications have differen...

AI Technical Summary

Problems solved by technology

However, in actual operation, it was found that due to the large volume of the ingot body, the center of gravity was unstable, repeated lifting, and the ingot slipped during the process of taking the ingot out of the furnace and erecting it, resulting in many scratches on the surface of the ingot. The finished product rate is reduced, and the temperature of the material drops rapidly at the same time, so the forging temperature cannot be guaranteed

In addition, the driving wire rope is easy to get out of the groove, which directly causes harm to the quality of the product and the safety of the equipment.

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