pressing


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pressing

1. a large specified number of gramophone records produced at one time from a master record
2. a component formed in a press
3. Football the tactic of trying to stay very close to the opposition when they are in possession of the ball

Pressing

 

the use of pressure to process various materials so as to bring about compaction, changes in shape, separation of the fluid phase from the solid, and changes in the mechanical and other properties of materials. Pressing is used in various industries and agriculture and is usually done on high-pressure presses. (The term “pressing” should not be applied to the production of articles and blanks by forging and stamping in forging presses.)

Distinctions are made between various pressing techniques. Thus, in isostatic pressing, fluid under high pressure is used to mold powdered materials in a closed space. In compressed gas, gas is used to mold powdered materials at high pressures and temperatures. In hydrostatic pressing, fluid under high pressure is used to alter the shape of metallic materials by a process analogous to the compression molding of metals. Another technique, pulse pressing, uses explosions, magnetic-pulse processing, or high-voltage discharge in a fluid.

pressing

[′pres·iŋ]
(engineering acoustics)
A phonograph record produced in a record-molding press from a master or stamper.
(metallurgy)
Shallow-drawing metal sheet or plate.
Using compressive force to form a metal powder compact.
References in periodicals archive ?
He also ferments to dryness before pressing and uses a cycle time of less than an hour.
With both conventional limb compression and limb-tip compression, the Edge will handle most pressing needs for one-fifth the cost of the Pro Series.
"Fine top base structures allow for maximum pressing uniformity; the underlying base structures are built with water handling as a goal.
Some defensive coaches might want the "Tight Wing" and the "Monster" to switch positions, but because of defensive transition responsibilities, it is felt that the former locations will provide more success in both the defensive transition and the defensive pressing phases of the team.
* Paper Machine Wet Press Manual, Fourth Edition, Edited by Richard Reese This book provides an introduction to wet pressing technology in the paper industry and includes information on practical press section considerations on paper machines.
Membrane pressing uses inflated bladders or membranes to apply uniform pressure to a heated plastic sheet and form it around a CNC-machined wood core, which acts as the mold.
Pneumatic and air/oil powered vertical machines from 1/4 to 20 tons of pressing force with heated heads from 20 to 800 sq/in.
The company's quarterly newsletter, "Pressing Issues," provides information about the wide range of custom-engineered equipment the company offers the rubber, plastics and composites industries.
Pressing trends to eliminate the third nip and single-nip pressing are putting greater demands on the fabrics.
The image is transferred to the paper (normally a continuous web) by pressing the paper against the printing cylinder with a rubber covered roller.
There is a clear requirement and justification to do two things: examine the sheet at the ex-press position and use this information to improve sheet quality and runnability of the machine through its pressing operations.
This comprehensive UB routine involves the alternation of pressing and pulling movements--a one-for-one routine for both the anterior and posterior muscles.