Method for upsetting large steel ingots through forging and pressing machine

Abstract

The invention provides a method for upsetting large steel ingots through a forging and pressing machine. The forging and pressing machine is provided with a traveling crane and a moving platform. The method is characterized by including: step 1, providing an upper upsetting disc and a lower upsetting disc, and placing the lower upsetting disc on the moving platform; step 2, using a four-claw clamp to place a horizontal crane with a conical clamp handle formed thereon on the lower upsetting disc; step 3, using a manipulator throwing clamp to align a steel ingot clamp handle to a central hole of the lower upsetting disc and erect the steel ingot clamp handle to a vertical position; step 4, upsetting steel ingot blanks by the forging and pressing machine through the upper upsetting disc and the lower upsetting disc; step 5, turning and placing the steel ingot blanks after upsetting on the lower upsetting disc and remelting. By the method, occupying of an upsetting material placement site is avoided, clamp marks on the surfaces of the steel ingots are improved remarkably, unsafe operation when the traveling crane hoists the large steel ingots for upsetting is avoided, hidden trouble that a steel wire rope of the traveling crane slides out of a groove is prevented effectively, and convenience in straight blank borrowing operation during upsetting is realized; upsetting requirements can be met in shortest time, effective time is saved, and productivity and product quality are improved.

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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