中央発明研究所 Company Profile

Central Institute of Invention Research | Chuhatsu, which provides total support for impregnation, develops impregnation devices, impregnation agents, vacuum devices, and more.

Impregnation refers to the process of filling and sealing the porous parts, known as "porosity," which affect the durability of components produced in metal casting, powder metallurgy, ceramics, and other materials, with resin. This technology allows for the recovery of products that would otherwise be deemed defective. The impregnation system developed by Chuo achieves a sealing effect of nearly 100% in a short amount of time. It is utilized in a wide range of fields, not only for leak prevention but also for pre-treatments against blistering, peeling, and corrosion in plating and painting. Impregnation is applied using various methods tailored to the size of the "leaks" or voids in the product. One such method is the vacuum pressure impregnation method, where the product is placed in a vacuum state, and pressure is applied to fill the "porosity" with resin and seal it.