Results 311 to 320 of about 401,468 (341)
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Metallurgical Reviews, 1957
AbstractExtrusion is essentially a process in which a slug of material or a billet is forced through a suitably shaped die and converted into a continuous product of uniform cross-section. Specialized developments, such as the extrusion of taper sections and the manufacture of extrusion forgings, retain the essentials of the basic process.
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AbstractExtrusion is essentially a process in which a slug of material or a billet is forced through a suitably shaped die and converted into a continuous product of uniform cross-section. Specialized developments, such as the extrusion of taper sections and the manufacture of extrusion forgings, retain the essentials of the basic process.
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Planar Twist Extrusion versus Twist Extrusion
Journal of Materials Processing Technology, 2011Abstract A modification of Twist Extrusion (TE) process, Planar Twist Extrusion (PTE) with a die having two flat parallel walls moving by the plunger, was designed and implemented in the present study. Characteristics of the deformed state after PTE and TE as well as pressures involved in the processes were studied by means of experiments on aluminum
D. V. Prilepo +6 more
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Possibilities of warm extrusion in combination with cold extrusion
Journal of Materials Processing Technology, 1992Abstract The possibilities of combining warm- with cold-extrusion processes are discussed and illustrated by means of three examples. In particular, the aim is to show why combination of these processes has proven - both technically and economically - to be a good solution. Current existing problem areas of this technology are also discussed.
Richard Knödler, Ekkehard Körner
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2005
The extrusion of polymeric materials to produce finished products for industrial or consumer applications is an integrated process, with the extruder comprising one component of the entire line. In some applications, the production lines are very long with numerous operations, requiring operators to communicate and work together to produce an ...
Harold F. Giles +2 more
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The extrusion of polymeric materials to produce finished products for industrial or consumer applications is an integrated process, with the extruder comprising one component of the entire line. In some applications, the production lines are very long with numerous operations, requiring operators to communicate and work together to produce an ...
Harold F. Giles +2 more
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2005
Publisher Summary Reactive extrusion is an attractive route for polymer processing to carry out various reactions including polymerization, grafting, branching, and functionalization. Reactive extrusion polymerization involves polymerizing a liquid or solid monomer or prepolymer during the residence time in an extruder to form a high molecular weight ...
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Publisher Summary Reactive extrusion is an attractive route for polymer processing to carry out various reactions including polymerization, grafting, branching, and functionalization. Reactive extrusion polymerization involves polymerizing a liquid or solid monomer or prepolymer during the residence time in an extruder to form a high molecular weight ...
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2011
Publisher Summary Extrusion is widely used for the continuous and intermittent manufacture of polymeric products because it permits the preparation of highly uniform polymer melts at high rates. This is necessary because the low thermal conductivity and high viscosity of polymers prevent the easy and high rate melting in bulk containers using external
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Publisher Summary Extrusion is widely used for the continuous and intermittent manufacture of polymeric products because it permits the preparation of highly uniform polymer melts at high rates. This is necessary because the low thermal conductivity and high viscosity of polymers prevent the easy and high rate melting in bulk containers using external
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2005
Foam extrusion can be used with most of the processes discussed previously, using either single screw or twin screw extrusion, by incorporating a blowing agent into the polymer.
Harold F. Giles +2 more
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Foam extrusion can be used with most of the processes discussed previously, using either single screw or twin screw extrusion, by incorporating a blowing agent into the polymer.
Harold F. Giles +2 more
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2005
Profile extrusion is one of the most common types of extrusion processes, producing a variety of product shapes in large volume. Any plastic cross-section requiring long lengths can be produced in a profile extrusion process and cut to the desired length.
John R. Wagner +2 more
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Profile extrusion is one of the most common types of extrusion processes, producing a variety of product shapes in large volume. Any plastic cross-section requiring long lengths can be produced in a profile extrusion process and cut to the desired length.
John R. Wagner +2 more
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2019
Pelletizing is well known within ceramics in the area of material preparation as well as in the shaping of different pellet geometries. The following chapter offers an overview of the various pelletizing methods for ceramic bodies and describes the relevant basics and elements of pelletizing.
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Pelletizing is well known within ceramics in the area of material preparation as well as in the shaping of different pellet geometries. The following chapter offers an overview of the various pelletizing methods for ceramic bodies and describes the relevant basics and elements of pelletizing.
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Extrusion Pressure Vs. Extrusion Ratio Relation for the Hydrostatic Extrusion of Solid Polymers
1979Ten engineering polymers, crystalline or amorphous, were hydrostatically extruded in castor oil at pressures up to 4 kbars without heating the pressure vessel [1]. The polymers studied included polyethylene, polypropylene, nylon 6, polyoxymethylene, polyvinyl chloride, acryronitrile-butadiene-styrene copolymer, polymethyl methacrylate, polycarbonate ...
M. Shimono, T. Nakayama, N. Inoue
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