Description
3Dresyn EB1 has these features and benefits:
- Universal Eco Binder for water debinding and sintering ceramics, metals, polymers (such as polyimide), and exotic powders (including nanowires, microfibers, etc) feedstock injection in 3D printed durable or sacrificial injection molds
- ideal for dispersing, debinding and sintering ceramics, metals, polymers and exotic powders without defects since most of the debinding is done with water
- excellent dispersability and flow of post added micron and submicron ceramics, metals, polymers, such as polyimide, and exotic powders (including nanowires, microfibers, etc)
- powder (including nanowires, microfibers, etc) additions can be up to 60% volume concentrations (lower for nanoparticles, nano wires and microfibers)
- part of the binder has good water solubility for debinding without imperfections nor cracking
- part of the binder is not water soluble but exhibits excellent thermal debinding without imperfections nor cracking
- controlled and reproducible process shrinkage which depends on final % powder and resin binder
- minimum expansion coefficient to prevent micro-fractures
- relative low slurry viscosity, good flow
- very high resolution of 20 microns of final products
- suitable for ceramic, metal, polymer, and exotic material slurry jetting
- eco friendly process
- organo-tin free
- supplied in aluminum bottles for heating and melting the binder at 150-160ºC without deforming the bottle
Recommended feedstock or slurry mixing:
- Add the binder and your chosen ceramic, metal, or polymer powder with powder volumen concentrations of up to 50-60% to a a powder kneader mixer (or similar) at 160ºC for 30 minutes
Recommended injection of slurries or feedstocks:
- Slurries can be poured hot in metal cartridges of 22 or 25 mm external diameter for direct injection in low cost manual injection machines such as this type of manual injection equipment
- Slurries can be injected in 3D printed molds made with our durable and/or sacrificial 3D resins
- after demolding green parts are obtained
Recommended debinding and sintering process of green parts:
- First step: water debinding at 65ºC for 5 hours
- Second step. thermal debinding:
- Insert flask in the preheated oven at 65ºC
- Ramp 1-2ºC/ minute up to 250ºC
- Hold at 250ºC for 60 minutes
- Ramp 1-2ºC/ minute up to 450ºC
- Hold at 450ºC for 30 minutes
- Ramp 2-5ºC/ minute up to sintering temperature
- Hold at sintering temperature for 180 minutes
- Ramp -2ºC/ minute down to 640ºC
