Platen

Source: Wikipedia, the free encyclopedia.
For other uses, see Platen (disambiguation).
Not to be confused with Paten.
Section of a platen printing press in use. The platen is the sturdy plate which applies the pressure to the paper and type.

A platen (or platten) is a platform with a variety of roles in printing or manufacturing. It can be a flat

typebars
or print head. It can refer to the glass surface of a copier, and the rotating disk used to polish semiconductor wafers.

Applications

Office equipment

Copier

In

dot-matrix printer
.

Manufacturing and processing

A planar in semiconductor wafer polishing

Semiconductor manufacturing

In semiconductor manufacturing, specifically

chemical-mechanical planarization, a flat, rotating platen covered with a pad is used to polish semiconductor wafers (see image).[2]

Screen printing

In textile

garment. It is generally made of either a plywood laminate or aluminum with a rubber laminate. Often the platen will be pretreated with a spray adhesive. This allows the garment to effectively become a rigid immobile substrate, especially important when printing multiple colors or utilizing an on-press infrared dryer. The screen is brought parallel and close to the garment (often within 1/32") and the squeegee pressure then brings the screen into contact with the garment so that the ink transfer may occur. There are many special platen types, such as those for printing sleeves or pockets, vacuum platens, platens with clamps to hold bulky materials such as jackets, and even curved platens for printing on hats.[citation needed
]

Woodworking

In woodworking, wide belt sanders use platens to press the sanding paper into contact with the wood being sanded. The platen sits between two steel rolls which deliver the moving force to the sanding belt. Sanding heads with a platen are used on finish sanding with papers of finer grits, when the coarser ones are typically used with contact drum type sanding heads. Stock is fed into and out of the machine on a conveyor belt. Since the abrasive belt creates a substantial pressure on the stock that tends to push the stock toward the infeed, the hold down shoes and rollers hold the workpiece down against the belt while it is moving through the machine in order to ensure uniform contact with the abrasive and continuous movement.[citation needed]

Metal forming

In metal forming processes, a platen is the component that houses the mold for forging the required shape. The platen tends to be the heaviest and strongest part of the press due to the massive forces that it has to withstand. A platen for a 5000-ton press can weigh up to 350 tons.[citation needed]

Other

In manufacturing, a platen is a flat plate of a press utilized in

PVC binders and folders down the spine lines.[citation needed
]

Platens are utilized in impact testing in research; a specimen is crushed between platens.[citation needed]

The platen also refers to the fixed part of a linear motor.[citation needed]

Gallery

  • Replica of the Gutenberg press. The platen on the right holds the paper, and is pressed down onto the typeset.
    Replica of the
    Gutenberg press
    . The platen on the right holds the paper, and is pressed down onto the typeset.
  • Cylindrical platen on a typewriter
    Cylindrical platen on a typewriter
  • Cylindrical platen in a dot-matrix printer
    Cylindrical platen in a dot-matrix printer

See also

References

  1. ^ "Definition of PLATEN".
  2. ISBN 9781420017663
    . Retrieved 2016-05-20.

External links

Look up platen in Wiktionary, the free dictionary.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Platen&oldid=1217590808"
This page is based on the copyrighted Wikipedia article: Platen. Articles is available under the CC BY-SA 3.0 license; additional terms may apply.Privacy Policy