Lost foam casting method

Abstract

The invention discloses a lost foam casting method, and belongs to the technical field of lost foam casting. Lost foam casting equipment suitable for the lost foam casting method comprises a bottom plate, first mounting plates are symmetrically and fixedly connected to the left side and the right side of the top of the bottom plate, and a molding sand collecting mechanism is arranged on the innersides of the two first mounting plates jointly. Through the arrangement of the structure, a cast casting can be conveniently taken out under the condition that inclination and turnover are not needed,it can be guaranteed that the casting is not damaged, the quality of the casting can be guaranteed, metal chippings generated in the casting process can be separated from molding sand in the moldingsand collecting process, the metal chippings cannot be doped in the molding sand, small broken particles cannot be mixed in the molding sand when the molding sand falls into a collecting box, the collected molding sand can be clean, secondary utilization can be conducted without consuming a large amount of manpower and material resources for cleaning, the manufacturing cost can be greatly reduced,and the molding sand is not wasted.

Description

technical field [0001] The invention relates to the technical field of lost foam casting, in particular to a lost foam casting method. Background technique [0002] The lost foam casting technology is to bond and combine foamed plastic models similar in size and shape to the castings to form a model cluster. After brushing the refractory coating and drying it, it is buried in the foundry sand for vibration molding, and the liquid metal is poured under certain conditions. The method of vaporizing the model and occupying the position of the model, solidifying and cooling to form the required casting. [0003] In the prior art, after the casting is cast and cooled, it is often necessary to tilt the sand box to pour out the casting. If the casting is not poured, it will be covered with molding sand and it is not easy to take it out. The collision between the poured casting and the ground may cause the casting to be deformed. It will reduce the quality of castings, and the dumpi...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a lost foam casting method to solve the problem in the prior art mentioned in the above background technology that after the casting is cast and cooled, it is often necessary to tilt the sand box to pour out the casting, without dumping the casting. Covered by molding sand, it is not easy to take out, and the collision of the poured castings with the ground may cause deformation of the castings, which will reduce the quality of the castings. The pouring of the casting sand will cause the casting sand to be scattered and difficult to collect, and the casting sand may be mixed with metal produced during the casting process. Debris and small particles mixed in the process of scattering, metal chips and small particles may consume a lot of manpower and material resources to clean up, and when the cleaning cost is greater than the value of the molding sand, the molding sand may be discarded and not reused. Will cause the problem of waste of molding sand

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