Stage 4a. TVDR – Thermo-Vacuum Powder Degassing and Reconditioning System
AMT.TVDR
The thermo-vacuum degassing system for metal powder / granules is designed for removal of adsorbed surface moisture and air from powder particles prior to further processing or reuse. The equipment is intended for powder conditioning in additive manufacturing workflows where feedstock cleanliness, process stability, and repeatable powder quality are important.
The system is applicable both to powder stored under normal atmospheric conditions and to powder previously used in 3D printing processes, where surface moisture and entrapped air may accumulate during storage, handling, and recirculation.
Core Functional Basis
Primary purpose
Removal of adsorbed surface moisture and air from metal powders exposed to air, previously stored or cycled
Process principle (patented)
Continuous or controlled passage of loose powder particles through a thermal degassing zone (manifold) under vacuum encountering multiple interactions with the hot elements of the manifold
Critical process variables
Vacuum level, heating temperature, and powder feed / pass-through rate
Intended result
Conditioned powder with removed adsorbed surface moisture and air suitable for returning to the additive manufacturing cycle, subject to the user’s internal powder qualification procedures
Process Description
The operating principle is based on passing metallic powders through a thermal degassing unit under vacuum at a controlled rate. Within this zone, the material is heated to a defined process temperature through multiple interactions with the hot elements of the manifold. Maintaining the required combination of vacuum, heating temperature, and powder throughput rate enables effective removal of accumulated surface moisture and air from the powder particles, collecting them under vacuum and strong in inert atmosphere.
After thermo-vacuum treatment, the processed powder may be reintroduced into the 3D printing process for production of finished parts. In practical additive manufacturing operations, this type of conditioning step supports powder reuse strategies and helps reduce the adverse effects of environmental exposure during storage and powder circulation.
thermo-vacuum degassing system for metal powder, vacuum degassing unit for additive manufacturing powder, metal powder conditioning system under vacuum, powder drying and degassing equipment for 3D printing, vacuum thermal treatment of metal powder, moisture removal from metal powder for additive manufacturing, powder reconditioning system for AM feedstock reuse, vacuum powder processing equipment for metallic granules, degassing of reused metal powder for 3D printing, vacuum powder regeneration / conditioning system