ค้นเจอ 117 รายการ

คำศัพท์ที่เกี่ยวข้องกับ "Metal"

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Brittleness

(english) The tendency of a metal or material to fracture without undergoing appreciable plastic deformation.

Bath

(english) Molten metal on the hearth of a furnace, in a crucible, or in a ladle

Babbitt

(english) An antifriction metal alloy used for bearing inserts;made of tin,antimony,lead and copper.

Burnishing

(english) Developing a smooth finish on a metal by tumbling or rubbing with a polished hand tool.

Blue Vitriol Copper sulfate

(english) A layout solution which turns a copper color when applied to a clean,polished metal surface.

Backward Extrusion

(english) Forcing metal to flow in a direction opposite to the motion of a punch or die.

Activation

(english) The changing of the passive surface of a metal to a chemically active state. Contrast with passivation.

Bridling

(english) The cold working of dead soft annealed strip metal immediately prior to a forming, bending, or drawing operation. A process designed to prevent the formulation of Luder's lines. Caution-Bridled metal should be used promptly and not permitted to (of itself) return to its pre-bridled condition.

Blowhole 2

(english) A cavity which was produced during the solidification of metal by evolved gas, which in failing to escape is held in pockets.

Bead

(english) 1)Half-round cavity in a mold, or half-round projection or molding on a casting, 2) a single deposit of weld metal produced by fusion.

AB Srews

(english) Sheet metal screws with pointed ends similar to type-A screws and thread dimensions similar to type-B. Type AB screws are seldom used in stainless.

Acid Brittleness (Pickling Brittleness)

(english) Brittleness resulting from pickling steel in acid; hydrogen, formed by the interaction between iron and acid, is partially absorbed by the metal, causing acid brittleness.