Polymer ceramic material for pouring mold and manufacturing method thereof

Abstract

The invention discloses a polymer ceramic material for a pouring mold and a manufacturing method thereof. The polymer ceramic material comprises the following components in percentage by weight: 60-70% of a plastic material, 10-15% of ceramic powder, 5-10% of glass fiber, 1-3% of metal fiber and 1-2% of a plasticizer. A mold prepared from the polymer ceramic material is low in price, convenient toprocess, beneficial to molding, high in surface smoothness, long in service life, not prone to deformation, beneficial to accurate casting and capable of manufacturing large pressed parts. Compared with a metal material, the weight and the specific gravity are low, the material price and the overall weight are greatly reduced, water absorption is avoided, deformation of the mold is reduced, the surface is subjected to crystal plating treatment, the smoothness is greatly superior to that of the metal material, an oxidation reaction is avoided after the surface is made of a non-metal material,and the service life of the surface smoothness is prolonged.

Description

technical field [0001] The invention relates to the technical field of mold materials, in particular to a polymer ceramic material for casting molds and a manufacturing method thereof. Background technique [0002] Existing types of casting molds include: wooden molds, metal molds, paraffin molds and foam molds. The following is an analysis of the characteristics of several molds: [0003] Advantages of wooden molds: cheap, easy to process, good for modeling, and capable of manufacturing large pressure parts. Disadvantages: easy to deform, may cause mold deformation after each casting, and long-term use will increase the material cost of the manufacturer. The surface finish is low, the surface roughness of the casting product is relatively large, and the molding effect is poor. Strong water absorption will cause rot and mold scrapping. It cannot be achieved that precise casting has a short service life. Poor thermal stability, not easy to use in an environment where the...

AI Technical Summary

Problems solved by technology

Insufficient: easy to deform, the mold may be deformed after each casting, and long-term use will increase the material cost of the manufacturer

Disadvantages: The processing cost is 8-10 times higher than that of wooden molds, and the weight of the model is heavy, which is not conducive to on-site construction, and it is difficult to repair after deformation

Disadvantages: The processing cost is 5-8 times higher than that of wood moulds. Because it is necessary to manufacture the wax film of the metal mold base first, the wax film is covered with sand to form the mold base. The process is relatively complicated, and only small finished products can be manufactured. For large castings Not applicable

Disadvantages: Because the foam model needs to be manufactured first, and the foam model is then covered with sand to form the mold base, the process is relatively complicated, the pressure capacity is low, and the pressure parts cannot be manufactured, the thermal stability is poor, and it is not easy to use. The deformation will increase in the environment where the temperature exceeds 60 degrees.