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| absolute micron retention( See Micronic Filter Cloth ) |
| In both types of dutch weave the sum derived from multiplying the number of weft wires
in a given measurement by their diameter, results, in theory, in a specification with no
open space. Because the wires are driven together during the weaving process, the aperture
size cannot be calculated in the normal manner. |
| There are two methods by which the aperture size can be determined: bubble point
testing and glass bead testing. See-"bubble point test"
See-"glass bead test" |
| ACS
(See
American Chemical Society) |
| |
| AICHE
( See American Institute of Chemical Engineers
) |
| |
| AIME (See
American Institute of Mining, Metallurgical
and Petroleum Engineers ) |
| |
| angle insert |
| Steel (or Stainless Steel) angular shape welded or otherwise fastened to a screens
formed tensioning hook for reinforcing purposes. |
| |
| anneal |
| A heat-treating process in which the steel is heated to some elevated temperature,
usually at or near the critical range and held at this temperature for a period of time,
then cooled, usually at a slow rate. |
| Annealing is employed (1) to soften steel for secondary machining or forming processes;
(2) to alter ductility, toughness, electrical or magnetic characteristics or other
physical properties; (3) to refine the crystal structure; (4) to produce grain
reorientation; or (5) to relieve stresses and hardness resulting from weaving (cold
working). |
| |
| annealed after |
| Wire cloth or wire mesh
which is annealed after the
weaving process. |
| |
| annealed before |
| See-"annealed wire". |
| |
| annealed wire |
| Wire which has been cold-drawn to reduce its diameter is often annealed to reduce
strength and increase elongation to facilitate weaving. |
| |
| ANSI
(See
American National Standards Institute ) |
| |
| aperture
(
See Aperture Formulas ) |
| The clear opening between wires on a wire mesh screening surface. |
| |
| API
(See American Petroleum Institute ) |
| |
| ARI
(See
Air-Conditioning and
Refrigeration Institute ) |
