Cutter tooth holder lost foam casting mold and casting method

Abstract

The invention discloses a lost foam casting mold for a cutter tooth holder. The lost foam casting mold for the cutter tooth holder comprises a cutter tooth holder white mold and a casting system whitemold, sand box casting is changed into lost foam casting, and a sprue and a plurality of groups of ingates are arranged in a roller, so that molten metal is cast in the cutter tooth holder white moldfrom bottom to top; the first ingate, the second ingate and the third ingate in the ingates convey the molten metal to the roller and promote the molten metal to form local entrainment scouring in the roller at the same time, so that impurities such as bubbles and dross remaining in the roller, a first inverted teeth and a second inverted teeth are washed away, the pouring quality is greatly improved, the production cost is reduced, a first riser and a second riser are correspondingly arranged at the joints of the end part of the roller and the end parts of the first inverted tooth and the second inverted tooth, so that molten metal with impurities is timely discharged, the pouring quality of a cutter tooth holder is greatly improved, the internal structure distribution is uniform, the compactness is good, the mechanical properties of the two sides are consistent, and the service life of the cutter tooth holder is remarkably prolonged.

Description

technical field [0001] The invention relates to the technical field of blade holder casting, in particular to a blade holder lost foam casting mold and a casting method. Background technique [0002] As one of the key components in the coal mining industry, the knife-tooth seat is usually cast horizontally with sand molds. Since there are many inverted teeth on the drum and multiple risers along the length of the sand mold, the cutting surface of the inverted teeth formed by pouring is too large. Too many, heavy grinding workload, poor surface quality of castings, increased unit consumption of molten metal, and horizontal pouring can easily cause the structure on one side of the inverted tooth to be less compact, and the mechanical properties are inconsistent with those on the other side of the inverted tooth, reducing the service life of the tooth holder. Contents of the invention [0003] In view of this, in view of the above-mentioned shortcomings, it is necessary to pr...

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Problems solved by technology

[0002] As one of the key components in the coal mining industry, the knife-tooth seat is usually cast horizontally with sand molds. Since there are many inverted teeth on the drum and multiple risers along the length of the sand mold, the cutting surface of the inverted teeth formed by pouring is too large. Many, heavy grinding workload, poor surface quality of castings, increased unit consumption of molten metal, and horizontal pouring can easily cause the structure on one side of the inverted tooth to be less compact, and the mechanical properties are inconsistent with those on the other side of the inverted tooth, reducing the service life of the tooth seat

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