Method and dedicated roller body shaping device for producing grooved cast roller through centrifugal method

Abstract

The invention discloses a method and a dedicated roller body shaping device for producing a grooved cast roller through a centrifugal method. The dedicated roller body shaping device comprises a cold type, and further comprises locating movable blocks and hole type movable blocks. The cold type is located outside, the annular locating movable blocks and the annular hole type movable blocks are arranged on the inner wall of the cold type in parallel at intervals. Two ends of the hole type movable blocks are limited by the locating movable blocks respectively. According to the principle, a roller body with a hole type is directly produced through the centrifugal method, therefore, a previous roller body shaping device is changed, on the basis of the existing cold type, the locating movable blocks and the hole type movable blocks are ingeniously designed, the hole type can be cast in the roller body of a roller in advance, fine grain high-abrasion-resisting layers are arranged at the bottom and on the surface of the hole type, the bottom and the surface of the hole type have identical hardness and abrasion resistance, and the service life of the roller can be effectively prolonged.

Description

technical field [0001] The invention relates to a method for centrifugally producing cast rolls with grooves and a special roll body molding device thereof. Background technique [0002] In production and manufacturing, rolls with flat rolls and rolls with grooves on the roll body will be used. For the production of rolls with grooves on the roll body, the existing centrifugal production method is shown in the appendix of the manual. figure 1 , using the commonly used cold type 1 to produce the ordinary centrifugal composite roll with the conventional roll body as a flat roll, and then process the pass type 7-1. This method has obvious defects: when processing the pass type, the surface of the roll body is fine The grain layer 7-3 is processed away, that is, the high wear-resistant layer is processed away, resulting in the bottom of the hole pattern 7-1 being equiaxed crystals with relatively coarse grains, low hardness and poor wear resistance, so the service life is short....

AI Technical Summary

Problems solved by technology

[0002] In production and manufacturing, rolls with flat rolls and rolls with grooves on the roll body will be used. For the production of rolls with grooves on the roll body, the existing centrifugal production method is shown in the appendix of the manual. figure 1 , using the commonly used cold type 1 to produce the ordinary centrifugal composite roll with the conventional roll body as a flat roll, and then process the pass type 7-1. This method has obvious defects: when processing the pass type, the surface of the roll body is fine The grain layer 7-3 is processed away, that is, the high wear-resistant layer is processed away, resulting in the bottom of pass 7-1 being an equiaxed grain with coarser grains, low hardness and poor wear resistance, so the service life is short

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