ตัวกรองผลการค้นหา
Burn
แปลว่า(english) 1) Process of cutting metal by a stream of fuel and oxygen, 2) to permanently damage a metal or alloy by heating to cause either incipient melting or intergranular oxidation.
Blue Vitriol Copper sulfate
แปลว่า(english) A layout solution which turns a copper color when applied to a clean,polished metal surface.
Bath
แปลว่า(english) Molten metal on the hearth of a furnace, in a crucible, or in a ladle
Backward Extrusion
แปลว่า(english) Forcing metal to flow in a direction opposite to the motion of a punch or die.
Burnishing
แปลว่า(english) Developing a smooth finish on a metal by tumbling or rubbing with a polished hand tool.
Activation
แปลว่า(english) The changing of the passive surface of a metal to a chemically active state. Contrast with passivation.
Bed-In
แปลว่า(english) Method whereby drag may be rammed in the pit or flask without necessity of rolling over. Process used in production of heavy castings.
Bismuth
แปลว่า(english) Chemical symbol Bi. A soft, course cystalline heavy metal with a silvery white color and pinkish tinge; usually produced as a by-product of copper,leaad and other metals. Has a thermal conductivity lower than all other metals except mercury. Used as alloying agent but leading use is in pharmaceuticals.
Bridling
แปลว่า(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
แปลว่า(english) A cavity which was produced during the solidification of metal by evolved gas, which in failing to escape is held in pockets.
AB Srews
แปลว่า(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.
Bead
แปลว่า(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.