ผลการค้นหา

ค้นเจอ 168 รายการ

Spall

(Concrete Engineering) A fragment, usually of flaky shape, detached from a larger mass by pressure, expansion from within the larger mass, a blow, or by the action of weather.

Nitrogen fixation

(Environmental Engineering) The conversion of atmospheric (or dissolved) nitrogen gas into nitrate by microorganisms.

Covalent bond

(Environmental Engineering) A bond in which electrons are shared approximately equally by two atoms.

Mass:

(english) A property of an object measured by the degree that it resists acceleration.

Portland Cement (ASTM C 150)

(Concrete Engineering) The product obtained by pulverizing clinker consisting essentially of hydraulic calcium silicates.

Ottawa Sand

(Concrete Engineering) A sand used as a standard in testing hydraulic cements by means of mortar test specimens. Sand is produced by processing silica rock particles obtained by hydraulic mining of the orthoquartzite situated in open-pit deposits near Ottawa, Illinois; naturally rounded grains of nearly pure quartz.

Agglomerating Processes

(english) "Fine particles of limestone (flux) and iron ore are difficult to handle and transport because of dusting and decomposition, so the powdery material usually is processed into larger pieces. The raw material's properties determine the technique that is used by mills. 1) SINTER Baked particles that stick together in roughly one-inch chunks. Normally used for iron ore dust collected from the blast furnaces. 2) PELLETS Iron ore or limestone particles are rolled into little balls in a balling drum and hardened by heat. 3) BRIQUETTES Small lumps are formed by pressing material together. Hot Iron Briquetting (HBI) is a concentrated iron ore substitute for scrap for use in electric furnaces.

Burn

(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.

Plane of Weakness

(Concrete Engineering) The plane along which a structure under stress will tend to fracture; may exist because of the nature of the structure and its loading, by accident, or by design.

Blue Print

(english) A pen or ink line drawing reproduced (printed) on sensitized paper by direct exposure.

Butt Welding

(english) Joining two edges or ends by placing one against the other and welding them.

Bi-Coil

(english) Also BY-COIL. Tin Mill term. Customers buy "by coil" or "bi-coil" rather than cut sheets

ศัพท์ช่างภาษาอังกฤษ – ไทย จัดกลุ่มตามตัวอักษร A-Z

ดูหมวดหมู่ทั้งหมด