FIELD: process engineering.
SUBSTANCE: invention relates to welding of metal cellular element (1) used for decreasing the toxicity of used gases. This process comprises the steps that follow: a) cellular element (1) is subjected to preliminary treatment at 400°C; b) cellular element (1) is cooled; c) cellular element (1) is subjected to welding at 1050-1100°C at barometric pressure; d) cellular element (1) is cooled. Proposed device comprises first furnace (4) to implement step a), second furnace (5) for step c) and conveyance system (6). Saud system (6) extends through both furnace (4, 5) and incorporates cooling section with temperature regulator to maintain the temperature of step b), intermittent-action drive (7) and gates (8) to isolate first furnace (4) with formation of working area (9).
EFFECT: lower toxicity of off-gases.
10 cl, 5 dwg
