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ค้นเจอ 252 รายการ

Blanking

(english) An early step in preparing flat-rolled steel for use by an end user. A blank is a section of sheet that has the same outer dimensions as a specified part (such as a car door or hood) but that has not yet been stamped. Steel processors may offer blanking for their customers to reduce their labor and transportation costs; excess steel can be trimmed prior to shipment.

Bend Test

(english) Various tests which is used to ascertain the toughness and ductility of a metal product, in which the material is bent around its axis and/ or around an outside radius. A complete test might specify such a bend to be both with and against the direction of grain. For testing, samples should be edge filed to remove burrs and any edgewise cracks resulting from slitting or shearing. If a vice is to be employed, then you must line the jaws with some soft metal, to permit a flow of the metal in the piece being tested.

Time-boxing

(Software Engineering) a project scheduling and control technique that establishes time boundaries for the completion of a specific project task

Chemical fixation (or stabilization/solidification)

(Environmental Engineering) A term for several different methods of chemically immobilizing hazardous materials into a cement, plastic, or other matrix.

Acme Thread

(english) A screw thread having a 29 degree included angel. Used largely for feed and adjusting screws on machine tools.

Organic compound

(Environmental Engineering) Any compound containing carbon except for the carbonates (carbon dioxide, the carbonates and bicarbonates), the cyanides, and cyanates.

Software Requirements Specification

(Software Engineering) a deliverable that describes all data, functional and behavioral requirements, all constraints, and all validation requirements for software

Calcine

(Concrete Engineering) To alter composition or physical state by heating to a specific temperature for a specific length of time.

Non-agitating Unit

(Concrete Engineering) A truck-mounted unit for transporting ready-mixed concrete short distances, not equipped to provide agitation (slow mixing) during delivery.

Adapters

(english) Steel segments that are bolted to the reel mandrel to increase their diameter so that large (24" ID) coils can be run.

Brazing

(english) Joining metals by fusion of nonferrous alloys that have melting points above 800 F (425C), but lower than those of the metals being joined. May be accomplished by a torch. Filler metal is ordinarily in rod form in torch brazing; whereas in furnace and dip brazing the work material is first assembled and the filler metal may then be applied as wire, washers, clips, bands, or may be bonded, as in brazing sheet.

Beam and Sling

(english) Tackle used in conjunction with a crane for turning over the cope or drag of a mold prior to assembly.

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