FUSE SEAL FOR SEALING-UP CONTAINERS AT CHEMICAL HEAT TREATMENT AND METHOD OF SEALING CONTAINERS Russian patent published in 1998 - IPC

FIELD: heat chemical treatment processes; diffusion saturation processes from powder media in containers provided with fuse seals. SUBSTANCE: fuse seal contains water glass and fireclay at the following ratio of components, weight-percent: soda-lime glass, 40 to 50; used carburizing agent, 10 to 20; water glass, 15 to 20 and fireclay, remainder. In sealing-up the containers, the components are placed in the following sequence: used carburizing agent, water glass, fireclay and soda-lime glass. EFFECT: reduced labour consumption; facilitated disassembly of containers. 3 cl, 1 app.