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Common terms and explanations in screen industry

2022-12-04 Hot:230 ℃

Cracks: longitudinal cracks, cracks and splits on the steel wire surface.

Tension crack (pricking): the steel wire surface has a small horizontal strip crack visible to the naked eye, showing tongue shape or other shapes

Sting. Delamination: local or full-length splitting occurs in the longitudinal direction of the steel wire.

Scab (scab): yellow oxide scar and white lime scar on the surface of steel wire.

Pulling mark: obvious dog or ridge on the surface of steel wire longitudinally, and the slight one will only make the surface appear disgraceful

Bright phenomenon.

Folding: the metal overlap on the steel wire surface along the length direction. It is usually in a straight line or curve

Or serrated. During metallographic examination, there are usually iron oxide inclusions and decarburized layer in the fold.

Concave: Local depression on the surface of steel wire. Rust: partial and overall oxidation occurs on the surface of steel wire.

Pitting: pitting or flake distributed pits on the surface of steel wire when it is severely oxidized.

Slub: The steel wire is periodically uneven in thickness along the longitudinal direction, and the shape is like a bamboo knot.

Helix: The thread like mark on the surface of steel wire during straightening.

Oxide scale: the steel wire surface is oxidized when contacting with high-temperature oxidation furnace gas, generating a hard and fragile layer of oxygen

Chemicals.

Decarburization layer: the area where the carbon content on the surface of steel wire is reduced due to the effect of gas medium and carbon in steel layer during heating,

This phenomenon of surface carbon reduction is called decarburization.

Graphite carbon: part or all of the carbon in the steel is separated in a free state, and the carbon in a free state is called graphite carbon.

Crease: Local folding on the mesh surface, forming an irrecoverable impression.

Hole: there are many broken threads of concentrated warp or weft on the mesh surface. Rust: the mesh surface is corroded and deteriorated.

Rust spot: small green, brown or different colored spots appear on the mesh surface.

Broken wire: the warp or weft lines on the mesh surface should be broken.

Mosquito Mouth: The wire is looped and twisted to empty the net surface.

Top buckle: the warp joint is poor, and it is pushed out of the mesh surface.

Shrinking weft: the weft line is partially bent in cubic meters, and the mesh is deformed.

Well wire: two or more metal wires are woven together side by side.

Jumping (jumping shuttle): The warp or weft threads are partially interlaced incorrectly.

Loosening: Loose displacement of individual warp or weft.

Debris weaving: foreign matters are woven into the net.

Cloud weaving: irregular cloud like network caused by too soft or uneven weft.

Bulging: The mesh surface bulges out regionally. Double line: The warp or weft lines overlap.

Size hole: the regular size of mesh on the mesh surface is uneven. Wire diameter: the diameter of wire

Thin and dense file: individual mesh on the mesh surface is suddenly too large or too small. Weft: all horizontal braids.

Loose edge: the edge of the net is wavy and bulging. Density: the number of mesh holes within 1 cm.

Warp: All longitudinal braids. Mesh number: the number of mesh holes within 1 inch length.

Mesh: The distance between two warp threads or two weft threads.

Tolerance: the vertical distance (MM) between the warp line at the heald and the tolerance line at the heald leveling angle.

Male line: connecting the front and rear chest nuts (lolas). Upper tolerance: the warp line at the heald flat is higher than the tolerance line.

Lower tolerance: lower tolerance is lower than the tolerance line. Zero tolerance: It is called zero tolerance when it coincides with the tolerance line.

Heddle angle: the distance between the upper heald and the lower heald after the heald frame is opened.

Flat angle: (angle change time) the distance between the reed and the long weft point at the heald level


TAGS: mesh

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