نتایج جستجو برای: thermoplastic injection

تعداد نتایج: 161754  

Rachana J Shah Sujal G Shah

A resilient soft liner (RSL) has been used in processed complete dentures but controlling its thickness has always been a challenge because of uneven reduction of the denture’s intaglio surface. Use of a thermoplastic vacuum-formed template and an endodontic K-file, as guides, for the reduction of a processed mandibular complete denture to receive RSL is described in the present report. A proce...

2008
Johannes Rauch Frank Kern Rainer Gadow

The mechanical properties of ceramic injection molded (CIM) components are largely influenced by microstructural inhomogeneities that result from the interaction of rheological properties of the thermoplastic feedstock with machine parameters and the design of mold and injection gate. These inhomogeneities (e. g. texture, turbulences, joints, and density gradients) can form weak spots in the ma...

2015
Tomaž KEK Dragan KUSIĆ Aleš HANČIČ Janez GRUM

This paper presents the experimental results regarding acoustic emission signals measured during the injection molding of those standard test specimens commonly used for examining the shrinkage behaviour of various thermoplastic materials. In daily industrial production of different plastic products we often have to deal with various errors that practically occur on the mold primarily as a resu...

Journal: :Biomaterials 2006
Mark J Mondrinos Robert Dembzynski Lin Lu Venkata K C Byrapogu David M Wootton Peter I Lelkes Jack Zhou

Drop on demand printing (DDP) is a solid freeform fabrication (SFF) technique capable of generating microscale physical features required for tissue engineering scaffolds. Here, we report results toward the development of a reproducible manufacturing process for tissue engineering scaffolds based on injectable porogens fabricated by DDP. Thermoplastic porogens were designed using Pro/Engineer a...

Journal: :Carbohydrate polymers 2014
Péter Müller Károly Renner János Móczó Erika Fekete Béla Pukánszky

Thermoplastic starch (TPS)/wood composites were prepared from starch plasticized with 36 wt% glycerol. The components were homogenized by dry-blending, extruded and injection molded to tensile bars. Tensile properties, structure, deformation, water adsorption and shrinkage were determined as a function of wood content, which changed between 0 and 40 vol% in 7 steps. The modification of TPS with...

Journal: :Cirp Journal of Manufacturing Science and Technology 2021

High-throughput manufacturing of transdermal microneedle arrays poses a significant challenge due to the high precision and number features that need be produced requirement multi-step processing methods for achieving challenging micro-features. To address this challenge, we report flexible cost-effective process chain array manufacture includes mould production using laser machining replicatio...

Journal: :journal of dentistry, tehran university of medical sciences 0
mohammad ali hemmati fariborz vafaee hanif allahbakhshi

objectives: the aim of this study was to assess and compare the water sorption and flexural strength of thermoplastic and conventional acrylic resins. materials and methods: water sorption and flexural strength were compared between a thermoplastic modified polymethyl methacrylate (pmma) denture base resin (group a) and a heat-polymerized pmma acrylic resin (group b) as the control group (n=10)...

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