Dell 外观缺陷英文用词.doc

有空多看看，這樣對於問題點的描述會變專業點 Sheet Metal Defects· Abrasion:  A  scuffed or rubbed surface imperfection· Arcing Marks:  Marks in the part caused by the part coming into contact with the plating tank.· Brush Finish:  Finish produced by texturing with brushes or other abradants such as glass/nylon rollers.· Burr:  Ragged or sharp protrusions on edges or holes· Dent:  A depression or hollow made by impact or pressure.· Pitting:  Depressions in the material surface which result from the removal of roll inclusions and/or oxidization. · Scratch:  A mark in the surface that is characterized by its long length relative to its depth and width.· Slug:  A small piece of material produced during stamping when piercing a hole.· Slug Marks:  Dents caused when slugs are trapped between the mating die surfaces and the sheet metal.· Water Spots:  Discolorations on sheet metal caused by impurities in the wash. · Wipe marks: Abrasions caused from the forming tooling wiping the material during a forming or bending operation.· White Rust:  Powdery substance resulting from zinc coating oxidization. Die Cast Defects· Cold Shut:  A casting defect caused by imperfect fusing of molten metal coming together from opposite directions in a mold.· Rubs:  Blemishes on the cast surface created due to soft part ejection impact onto other parts, machinery, floor, etc.· Surface Porosity:  Holes in the casting due to 1gases trapped  in the mold, 2reaction between molten metal and moisture in the sand, or 3imperfect fusion of chaplets with molten metal, · Hot Tear: Irregular shaped fracture in a casting resulting from stresses set up by steep thermal gradients within the casting during solidification.· Inclusions: Particles of slag, refractory materials, sand, or deoxidation products trapped in the casting during solidification. Molded Plastic Defects· Blush:   Discoloration or change in gloss, usually at gate areas or where wall thickness changes.· Bubbles:  Transparent parts or void pockets (may appear as a blister or bulge on colored parts).  · Burns:  Brown marks, spots or streaks (usually associated with poor venting of gasses during molding).· Cold Slug: Visible inhomogeneous melt from the first material to enter the mold during injection. · Contamination:  Discoloration from foreign material or foreign material embedded in the surface.· Cracking:  Splitting or fissures causing separation of the material.· Crazing:   Tiny cracks or white marks that are visible due to stress exerted on the part.· Delamination:  Separation of the layers of plastic.· Discoloration:  Inconsistent color or any deviation from the color standard.· Drag Marks:  Scratches from the plastic scraping against the mold during part ejection.· Flow Marks:   Directionally off-tone wavy or streaked appearance of a surface.· Flash:  Excessive plastic along the parting line or mating surface of the mold.· Gas Marks:  Burn marks or dark discolored streaks usually caused by inadequate venting of the gasses trapped in the mold during the injection phase. · Gouge:  Surface imperfection due to abrasion, nicking or poor trimming.· Grease:   Machine lubrication on the part.· Haze:   Cloudiness of a transparent part.· Marbling:  Colored streaks due to incomplete mixing of color.· Nicks:  Surface scratches or indentations due to mis-handling of part.· Particles:   Small discolored spots or matter embedded in material.· Pin Push:  Distortion or protrusion caused by ejector pin pushing into part.· Pitting:  Crater-like imperfections in the material.· Porosity:  Holes or voids in the material.· Protrusion:  Raised area on a surface, such as a blister or bump.· Pulling:  Part distortion caused from plastic sticking in the mold.· Scratch:  Surface imperfection due to mis-handling.· Shine:  Glossy or shiny areas on textured surfaces.· Shorts/short shots:  Missing material due to incomplete filling of the mold.· Sink:  Surface depression that occurs during cooling phase of the part.· Specks:   Small discolored spots or matter embedded in the material.· Splay:   Off-colored streaking (often silver-like) caused by moisture in the material or thermal degradation of the resin during processing. · Weld Lines:   Appears as a line where two or more fronts of molten plastic converge (also called knit lines).· Witness Lines:   A visible line formed by the junction of two pieces of steel in the mold. Painted Part Defects· Orange Peel: Film that has the physical appearance of an orange peel.· Fat Edge: Visibly thicker paint build near edges or through-holes.· Dry Spray: A rough, textured surface often confined to a small area.· Sag or Run: Tiers, drips, or curtains of paint on vertical or inclined areas.· Color Mismatch: Finished panels do not match color standard.· Fisheye: Small, crater-like opening in the finish after it has been applied.· Dirt: Small bumps deposited in, on, or u。