Method for quickly preparing arc spraying mother plate substrate

Abstract

The invention discloses a rapid preparation method for an arc-sprayed female die matrix. The female die matrix belongs to a magnesium oxychloride composite material, and contains 41.2 to 57.7 percent of light burned magnesia, 15.9 to 36.1 percent of industrial magnesium chloride, less than or equal to 2.0 percent of chopped carbon fiber, and the balance being water. During the use, raw materials are prepared into an uniform sizing agent, a prototype of a part to be sprayed is used to reclaim a female die made of magnesium oxychloride composite material, the female die is dried and finely machined, and finally hydrochloric acid is used to perform surface treatment on the female die to finish the rapid preparation of the sprayed female die. The sprayed female die produced by the method has low cost and high strength, is high temperature resistant, does not need high temperature baking during the production, can be machined, and is particularly suitable for middle-low melting point and high melting point electric arc spraying rapid molding technologies.

Description

A rapid preparation method for arc spraying master mold matrix technical field The invention relates to the manufacturing technology of electric arc spraying molds, in particular to a rapid preparation method for a master mold base used in electric arc spraying mold making. Background technique Mold is an extremely important process equipment in modern industry. It plays an important role in the size, shape accuracy and internal quality of formed parts in the manufacturing process of products. Molds manufactured by traditional mechanical processing methods have the advantages of high precision and long service life, but at the same time have the disadvantages of long manufacturing cycle, many processes, and high cost, so they cannot meet the goal of rapid product development in the new era. In recent years, a new process of rapid manufacturing of molds has emerged. It is different from the simple molds mentioned in the past, but a brand new method. Rapid tooling manufactu...

AI Technical Summary

Problems solved by technology

High-strength and high-hardness materials also have high melting points, and the coating temperature is very high during spraying, and the temperature gradient is not easy to control. It is difficult to manufacture mold shells with consistent performance.

After a large number of experiments, it was found that when using traditional arc spraying master mold materials, such as RP prototypes, plaster molds, etc. to spray high-melting point metals, serious burns occurred, and it was impossible to complete the production of metal shells.