Rolling sand chamber assembly and manufacturing method of two-component cone sand making machine

Abstract

The invention relates to a double component rolling sand making cavity assembly for a cone sand making machine and a manufacturing method. The upper part of the rolled mortar wall is made of Mn13, the lower part of the rolled mortar wall is made of high-chromium cast iron, and a ring-shaped groove is formed in the outer wall or the inner wall at the lower part of the rolled mortar wall, and is in concave-convex fusion casting coordination with a ring-shaped groove formed in the inner wall or the outer wall at the upper part of the rolled mortar wall; the upper part of a crushing wall is made of Mn13, the lower part of the crushing wall is made of high-chromium cast iron, and a ring-shaped groove is formed in the outer wall or the inner wall at the lower part of the crushing wall, and is in concave-convex fusion casting coordination with a ring-shaped groove formed in the inner wall or the outer wall at the upper part of the crushing wall. The double component rolling sand making cavity assembly has the advantages that 1, the critical defects that in the sand making process on the rolled mortar wall and the crushing wall which are made of a single material, the abrasion losses on the rolled mortar wall and the crushing wall by stone materials in different specifications are different, so that the upper parts of the rolled mortar wall and the crushing wall are slightly abraded while the lower parts of the rolled mortar wall and the crushing wall are seriously abraded, then a groove is formed in a rolling sand making cavity, and the sand cannot be made, are solved radically; 2, the abrasion loss of the Mn13 at the upper parts of the rolled mortar wall and the crushing wall when the stone materials are crushed is in relative accordance with the abrasion loss of the rolling sand making cavity at the lower part of the high-chromium cast iron rolled mortar wall.

Description

technical field [0001] The invention relates to a two-component cone sand making machine, which can not only meet the wear-resisting requirements of gravel crushing but also meet the wear-resistant requirements of rolling and compacting sand during the sand making process. The assembly and the manufacturing method belong to the field of assembly manufacturing of cone sand making machine components. Background technique [0002] CN102350388A, the name "high chromium rolling mortar wall assembly for conical sand making machine", it includes the rolling mortar wall assembly, and it is characterized in that: the material of the rolling mortar wall is high chromium white wear-resistant cast iron, and its chromium content is greater than or equal to 9%, equal to or less than 32%. Advantages: First, the wear resistance of the rolling mortar wall is greatly improved, and its wear resistance is about 5 times that of the current Mn13 rolling mortar wall. Not only the service life is ...

AI Technical Summary

Problems solved by technology

However, due to the two different working states of the cone sand making machine from stone crushing to sand making in the process of sand making, the upper part of the rolling mortar wall is used for crushing stone materials, and the impact load formed by the stone materials on the upper part of the rolling mortar wall And contact extrusion, and the stone material and the wall of the rolling mortar are indeterminate, not all contact crushed crushed stones, so the wear state of the upper part of the wall of the rolling mortar is relatively small; while the lower part of the wall of the rolling mortar is rolling. In the sand making part, the crushed stones are completely contacted and overlapped with the mortar wall, and the crushed stones located between the mortar wall and the crushing wall are under the strong rolling of the mortar wall and the crushing wall. Sand and gravel are very serious in wearing and tearing the rolling mill (including the broken wall)

If a single material is used to make the wall of the mortar, no matter it is manganese steel or high-chromium cast iron, the wear amount of the stone of different specifications on the wall of the mortar is different, and the wear of the upper part of the wall of the mortar is small, and the wear of the middle part is smaller than that of the upper part. The situation where the lower part wears and forms a groove, which causes the wall of the rolling socket to be worn and scrapped

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