ผลการค้นหา

ก๊าซ

หมายถึงน. อากาศธาตุ, (วิทยา) สถานะหนึ่งของสสาร รูปร่างและปริมาตรไม่คงที่ ขึ้นอยู่กับภาชนะที่บรรจุ, เรียกไฟซึ่งเกิดจากการจุดอะเซทิลีน ซึ่งได้จากก้อนแคลเซียมคาร์ไบด์ทำปฏิกิริยากับนํ้าว่า ไฟก๊าซ, แก๊ส ก็ว่า. (อ. gas).

Vaporproof

แปลว่า(Concrete Engineering) A material that is totally immune to the passage of a gas under pressure. Any material that is truly vaporproof will inherently be waterproof.

แก๊ส

หมายถึงน. อากาศธาตุ, (วิทยา) สถานะหนึ่งของสสาร รูปร่างและปริมาตรไม่คงที่ขึ้นอยู่กับภาชนะที่บรรจุ, เรียกไฟซึ่งเกิดจากการจุดอะเซทิลีน (acetylene) ซึ่งได้จากก้อนแคลเซียมคาร์ไบด์ทำปฏิกิริยากับน้ำว่า ไฟแก๊ส, ก๊าซ ก็ว่า. (อ. gas).

Denitrification

แปลว่า(Environmental Engineering) The anoxic biological conversion of nitrate to nitrogen gas. It occurs naturally in surface waters low in oxygen, and it can be engineered in wastewater treatment systems.

Blister 2

แปลว่า(english) A defect in metal, on or near the surface, resulting from the expansion of gas in a subsurface zone. Very small blisters are called pinheads or pepper blisters.

Acid Process 1

แปลว่า(english) A process of making steel, either Bessemer, open-hearth or electric, in which the furnace is lined with a siliceous refractory and for which low phosphorus pig iron is required as this element is not removed.

Acid-Process

แปลว่า(english) A process of making steel, either Bessemer, open-hearth or electric, in which the furnace is lined with a siliceous refractory and for which low phosphorus pig iron is required as this element is not removed.

Blue Annealing

แปลว่า(english) Heating hot rolled ferrous sheet in an open furnace to a temperature within the transformation range and then cooling in air, in order to soften the metal. The formation of a bluish oxide on the surface is incidental.

Boil

แปลว่า(english) Agitation of a bath of metal caused by the liberation of a gas beneath its surface. May be deliberately induced by the addition of oxidizing material to a bath containing excess carbon. In the later case it is called a carbon boil and CO or CO2 are liberated.

Cellular Concrete

แปลว่า(Concrete Engineering) A lightweight product consisting of portland cement, cement-pozzolan, cement sand, lime-pozzolan, or lime-sand pastes, or pastes containing blends of these ingredients and having a homogenous void or cell structure, attained with gas forming chemicals or foaming agents. For cellular concretes, containing binder ingredients other than or in addition to portland cement, autoclave curing is usually employed.

Blister

แปลว่า(english) 1) Coating defect consisting of the formation of bubbles in a coating, which appear as hemispherical elevations. The blisters are hollow, and are usually caused by entrapped air or solvent. 2) A raised spot on the surface on the surface of metal due to expansion of gas which causes a subsurface metal separation such as inclusions and small laminations.

Brazing

แปลว่า(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.