Results 161 to 170 of about 448,207 (186)
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The use of co-solvents in supercritical debinding of ceramics
Journal of the European Ceramic Society, 2002Abstract Extraction of organic binders (paraffin waxes) from injected green ceramic parts, by using supercritical fluids, has proven to be very efficient (short time of extraction, no defects in the green part). The extraction is more rapid when the binder is in the liquid state due to capillary migration but the capillary pressure could damage the ...
Fleur Bordet +2 more
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Solvent Debinding Kinetics and Sintered Properties of Injection Moulded 316L Stainless Steel Powder
Powder Metallurgy, 2005 A stainless steel (316L) powder having a median particle size of ∼25 μm was injection moulded using binders composed of polyethylene glycols (PEG) and polymethylmethacrylate (PMMA). The PEG content was leached in water and debinding kinetics studied as a function temperature.
Halil I. Bakan
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Thermal, Solvent, and Vacuum Debinding Mechanisms of PIM Compacts
Materials and Manufacturing Processes, 1997Abstract The mechanisms of thermal, solvent, and vacuum debinding processes for powder injection molded (PIM) compacts were investigated.
K. S. Hwang, H. K. Lin, S. C. Lee
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Solvent Debinding Mechanism for Alumina Injection Molded Compacts With Water-Soluble Binders
Ceramics International, 2003The solvent debinding process has been widely accepted in the ceramic injection molding (CIM) industry process due to its short debinding cycle. However, the organic solvents most adopted in solvent debinding now are flammable, carcinogenic and not environmentally acceptable.
Moo-Chin Wang +2 more
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A Model for PEG Removal From Alumina Injection Moulded Parts by Solvent Debinding
Journal of Materials Processing Technology, 2007Abstract The solvent debinding of a water-soluble binder in ceramic injection moulding (CIM) was investigated. The removal of polyethylene glycol (PEG) from alumina injection moulded parts was carried out at room temperature in water. Discs of different thicknesses were submitted to the water bath in order to obtain curves of time against remaining ...
A A M Oliveira +2 more
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Solvent debinding kinetics of alumina green bodies by powder injection molding
Ceramics International, 1995Solvent debinding of alumina green bodies shaped by powder injection molding is investigated. Debinding is carried out in normal hexane (n-C6), normal heptane (n-C7) and normal octane (n-C8), at 50, 60 and 80 °C. Wax is the major constituent being leached. A shrinking core is observed at the early stage of 50 °C solvent debinding. Debinding kinetics is
Dah-Shyang Tsai, Wei-Wen Chen
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Ceramics International, 2019
Abstract In this paper, zirconia green parts with the binder system containing low density polyethylene (LDPE) were prepared by injection molding. The green parts after solvent and thermal debinding were sintered at 1500 °C for 2 h. The influences of LDPE on solvent debinding were emphatically studied.
Shenglei Che, Yao Ying, Wangchang Li
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Abstract In this paper, zirconia green parts with the binder system containing low density polyethylene (LDPE) were prepared by injection molding. The green parts after solvent and thermal debinding were sintered at 1500 °C for 2 h. The influences of LDPE on solvent debinding were emphatically studied.
Shenglei Che, Yao Ying, Wangchang Li
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Solvent Debinding of Inconel 718 Fabricated via Metal Injection Molding
Advanced Materials Research, 2016The demand for components manufactured by Metal Injection Molding (MIM) has been increased due to a diverse range of applications on the high temperature mechanical properties and corrosion/oxidation resistance. Super alloy utilize the inherent physical properties of heat-resisting alloy based on iron-nickel, or cobalt specifically high purity and fine
Suleiman @ Ahmad, Muhammad Jabir +5 more
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Powder Injection Molding: A Comparison of Two Debinding Procedures Based on Solvent Extraction
Materials Science Forum, 1998As-injected Fe-2%Ni samples with a binder containing 3.3 wt.% polypropylene (PP), 2.8 wt.% paraffin wax (PW) and 1.7 wt.% ethylene-vinyl-acetate (EVA) were subjected to a two step debinding process, i.e., chemical (solvent) combined with thermal extraction.
Júnior Gervásio Justino +6 more
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Journal of Materials Processing Technology, 2005
Abstract Ceramic injection moulding (CIM) has been the process selected for the production of complex ceramic components in recent years. In this process, binder removal is one of the most critical steps due to the possible appearance of defects. In this study, the influence of specimen geometry and temperature on the solvent debinding step of an as ...
Ricardo V.B. Oliveira +3 more
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Abstract Ceramic injection moulding (CIM) has been the process selected for the production of complex ceramic components in recent years. In this process, binder removal is one of the most critical steps due to the possible appearance of defects. In this study, the influence of specimen geometry and temperature on the solvent debinding step of an as ...
Ricardo V.B. Oliveira +3 more
openaire +1 more source