Novel two-component mold producing material and preparation method thereof

Abstract

The invention relates to a novel two-component mold producing material and a preparation method thereof. The novel two-component mold producing material comprises a component A and a component B, wherein the component A is a resin component and comprises ingredients as follows: bisphenol A epoxy resin, aluminium hydroxide, silicon dioxide, polyethylene wax, ethylene bis stearamide and an organic silicon defoaming agent; the component B is a curing component and comprises ingredients as follows: polyamide resin, N-aminoethylpiperazine, nonyl phenol, the aluminium hydroxide, the silicon dioxide, the polyethylene wax, the ethylene bis stearamide and the organic silicon defoaming agent. The two-component mold producing material and the preparation method thereof have the benefits as follows: the two-component mold producing material has good plasticity, malleability and reactivity, when the material is used for producing a mold, the producing time is greatly shortened, and the producing flow is simplified; the material has good flame retardance and high safety; the prepared mold is high in mechanical strength, not easy to abrade and durable and has a smooth surface.

Description

technical field [0001] The invention belongs to the field of mold making, and in particular relates to a novel two-component mold making material and a preparation method thereof. Background technique [0002] At present, the sand casting industry mainly uses two kinds of molds, wood mold and metal mold, to make sand molds of desired shapes. The production of wooden molds and metal molds is a traditional "hard" physical molding method, which is to cut, process, polish, and then assemble wood or metal materials to form a complete mold. However, in addition to their own advantages, wooden molds and metal molds also have some disadvantages that cannot be ignored. [0003] For example, wooden molds, in the process of making wooden molds, will generate a lot of dust and pollute the environment, and the mechanical strength of wooden molds is low, the surface hardness is not high, and the service life is low. During the repeated use of the mold, wear and tear will inevitably occu...

AI Technical Summary

Problems solved by technology

However, in addition to some of their own advantages, wooden molds and metal molds also have some disadvantages that cannot be ignored.

[0003] For example, wooden molds, in the process of making wooden molds, will produce a lot of dust and pollute the environment, and the mechanical strength of wooden molds is low, the surface hardness is not high, and the service life is low

During the repeated use of the mold, wear and tear will inevitably occur. After a certain period of use, the damaged parts of the wooden mold must be repaired and maintained, which increases the cost of the mold and is not conducive to continuous operation on site. Therefore, the wooden mold Not suitable for mass production on site

When the temperature and humidity change, the size of the wooden mold changes, which will affect the dimensional accuracy of the casting

For example, metal molds have good surface strength, high dimensional accuracy, and long service life, but the cost of a single mold is high, the equipment is complicated, and the skill level of workers is high.