A molding method of complex ceramic parts based on the principle of quick-setting wax spray

Abstract

The invention discloses a wax spray rapid hardening principle-based complicated ceramic part forming method, and belongs to the technical field of precision investment casting. The method comprises the following steps: firstly generating a three-dimensional entity model of a wax pattern in a computer by three-dimensional modeling software; dividing the three-dimensional model into a series of thin layers with thicknesses of 0.02-2.00 mm by using layering software; obtaining the shape of each layer; accumulating the layers in sequence through wax spray technology to form a wax pattern cavity which is 1-5mm high; filling prepared ceramic slurry in the ceramic pattern cavity; assisting the leveling of the slurry by using an ultrasonic device in the slurry filling process; after repeated accumulation, forming a ceramic body coated by the wax pattern; carrying out heat treatment to remove the wax pattern; and carrying out sintering to finally form a ceramic product. According to the method, the characteristic, of being easy to manufacture parts with complicated shapes, of a rapid photo-typing technology is combined with the characteristic of high precision of dewaxing casting, and the ceramic slurry is injected in segments, so that the defects of the traditional slurry injection process are overcome, the manufacturing difficulty of high-precision complicated ceramic structural members can be solved, and the patternless manufacturing of the high-precision complicated ceramic structural members is realized.

Description

technical field [0001] The invention relates to a new technology for forming ceramic components, in particular to a process method for forming complex ceramic parts based on the principle of quick-setting by spraying wax, and belongs to the technical field of investment precision casting. Background technique [0002] Ceramic materials have the characteristics of high strength, wear resistance, corrosion resistance, and high hardness. They are one of the most important engineering materials and are widely used in aerospace, petrochemical, national defense and civilian fields. The traditional preparation process is to use molds to make powder materials into green bodies, and then sinter at high temperature to obtain ceramic components. This molding method is limited by mold making, which greatly restricts the development and demand for fine and complex ceramic components. The 3D printing technology developed in recent years has enabled material molding to achieve moldless pro...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the constraints of molds for complex ceramic parts and solve the defects of traditional grouting molding and pressure injection molding, the present invention provides a molding method for complex ceramic parts based on the principle of quick-setting wax spraying, which combines the high precision and 3D casting of lost wax Printing can achieve the characteristics of the complexity of the parts, making it possible to manufacture ceramic components with complex shapes, high precision, and good surface quality, and the wax model wraps the green body at one time.

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