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INTERNATIONALWIRENETTINGINDUSTRIES 582afbbf9ec66e09789f5a6a False 242 62
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TECHNICAL REQUIREMENTS ABOUT INDUSTRIAL WIRE SCREENS (ISO 14315): 1) Aperture Width (w): The distance between two adjacent warp or weft wires, measured in the projected plane at mid positions. 2) Wire Diameter (d): The diameter of the wire in the wire screen. 3) Pitch (p): (i) Distance between the middle points of two adjacent wires. (ii) Nominally the sum of the aperture width (w) and the wire diameter (d). 4) Warp: All the wires running lengthwise in the screen as manufactured. 5) Weft: All wires running crosswise in the screen as manufactured. 6) Number of apertures per unit length: The number of apertures which are counted in a row, one behind the other on a given unit length. 7) Open Screening Area (Ao): (i) Percentage of the surface of all the apertures in the total screening surface. (ii) Ratio of the square of the nominal aperture width (w) and the square of the nominal pitch (p) , i.e p = (w+d), rounded to a full percentage value: A0 = 100 x (w x w) / (w+d) x (w + d) 8) Firmness of industrial wire screen : Tension existing between the crossing of warp and weft wires and which, together with the interlocking, determines the firmness of the wire screen. Also note, that it is affected by the tensile strength of the material, by the relationship of (w) to (d), and by the type and the depth of the crimp. 9) Major blemishes: Production defects which significantly affect the aperture size or surface quality of the wire screen.
WELDED MESH: The welded wire mesh is a metal wire screen that is made up of low carbon steel wire, galvanized iron or stainless steel wire, it is available in various types and shapes, in any width up to 2 meter. This kind of welded mesh wire is basically in industrial fencing purposes. It is made up of stainless steel that has high strength and integrity. This corrosion resistance meshed wire is long lasting and is widely used in transportation, agricultural, mining, entertainment and other service sectors.
DTW, DUTCH TWILLED WEAVE: The weft wires in a twilled weave are laid together as closely as possible, whereby one weft wire lies above and the next below the warp wire in each case. The sum of diameters of the weft wires inside a section gives a value 5 - 15 % higher than that corresponding to the double value for the section. For the same diameter, DTW has twice the number of weft wires as SPW (Single Plain Weave) cloth in a plain weave. DTW cloth can also be woven with multiple warp wire layers, to increase the micron retention.
COMPOUND BALANCED WEAVE: Type L/K-3 in 2, 3, 4 & 5 rod services. Specificaton: 2, 3, 4 & 5 rod services 20, 18, 16 & 12 swg 36 to 140 coils per foot width according to wire diameter. Details: Weight - According to wire diameter, Thickness - 6 to 15 mm depending on wire diameter. Maximum working tension - on application Advantages: 1) Great for bakeries and snack food operation 2) Easily Customizable 3) Increased Surface Area 4) Better Product Stability 5) Carries heavier loads Application: Closely woven wire conveyor belt suitable for light, medium and heavy duties.
SPW, SINGLE PLAIN DUTCH WEAVE: The weft wires are plain woven to lie as close as possible against each other in a linen weave. The combined diameters of the weft wires within a section give about a 6 % increase in strength above the original values, due to the deformation of the wires. SPW-filter cloth can also be woven with multilayer warp wires lying in parallel. This improves the micron retention.
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