Large Hot Isostatic Pressing Equipment Passes Pressure Testing

People's Daily reported that hot isostatic pressing equipment with the world's largest hot zone dimensions passed pressure test monitoring in Anshun, Guizhou, under the Sichuan Special Equipment Inspection and Research Institute. Independently developed by Sichuan Aviation Industry Chuanxi Machine Co., Ltd., an affiliate of Aviation Industry Corporation of China, the unit achieved successful trial outcomes with intact data throughout pressurization, pressure holding, and relief phases. The tested equipment features a hot zone diameter of 2400 millimeters, a hot zone height of 3500 millimeters, and an experimental testing pressure reaching 205 megapascals. Because no mature domestic or international engineering precedent existed for the test, the project team maintained independent control across the entire process. The team finalized platform designs, conducted manufacturing and on-site debugging, and resolved core challenges covering ultra-high-pressure loading, high-volume medium pressurization, high-pressure sealing, safety protection, and automated pressure management. Looking ahead, Sichuan Aviation Industry Chuanxi Machine Co., Ltd. plans to carry out follow-up tasks on the equipment to accelerate practical application for industrial tools and high-end equipment manufacturing.

Hot isostatic pressing equipment serves as key processing machinery across nuclear materials, aerospace components, cemented carbides, high-temperature alloys, semiconductor sputtering targets, and ceramics. It functions in casting densification, powder metallurgy near-net forming, additive manufacturing post-processing, and powder consolidation to support high-end manufacturing development.