ผลการค้นหา

high lead bronze

แปลว่า(โลหะ) ชื่อโลหะผสมประกอบด้วยทองแดง 75 เปอรเซนต์กับดีบุกและตะกั่วต่าง เปอรเซนต์กันบ้าง ใช้ทำฝาประกับเพลา ที่ต้องใช้อัตราความเร็วสูงตลอดเวลา

ทองบรอนซ์

หมายถึงน. โลหะเจือชนิดหนึ่ง ส่วนใหญ่ประกอบด้วยทองแดงกับดีบุก, ทองสัมฤทธิ์ หรือ สัมฤทธิ์ ก็เรียก. (อ. bronze).

Bauxite

แปลว่า(english) The only commercial ore of aluminum, corresponding essentially to the formula Al2O3xH2O.

ormolu (Fr.)

แปลว่าหมายถึง แผ่นทองเหลืองผสมกับทองแดงหรือสังกะสีหรือบรอนซ์ทอง (bronze dore) (คำนี้เริ่มมีที่ฝรั่งเศส แต่กลับไปใช้กันในอังกฤษในฝรั่งเศสไม่ใช้)

Abrasive 2

แปลว่า(english) Natural – sandstone,emery,corundum,diamonds, or Artificial – silicon carbide,aluminum oxide – material used for making grinding wheels,andpaper,abrasive and lapping compunds.

Bright Dipping

แปลว่า(english) Chemical polishing of aluminum, often by treatment with a mixture of nitric acid and phosphoric acid, yielding a mirror-shiny (specular) highly reflective surface. It is almost always followed by anodizing to protect the surface and provide some choice of color.

AAC - Autoclaved Aerated Concrete

แปลว่า(Concrete Engineering) Exceptionally lightweight precast concrete with high thermal qualities and fire resistence. Suitable for cutting with ordinary hand tools. Mix design is composed of portland cement, sand or siliceous material, lime, gypsum, finely powdered aluminum, and water. Initial mix is a combination of portland cement, sand, lime and gypsum to produce a slurry. Finely powdered aluminum mixed into a paste is added prior to placement into large, rail-like forms. The finely powdered aluminum reacts with the alkaline components of the cement and lime to produce hydrogen gas, which increases the volume approximately five times producing a uniformly, dispersed cellular structure. Units are cut to required shape. Units are placed in an autoclave, an enclosed pressurized chamber, and steam cured at 3500 F. Approximately 80% of the ultimate volume consists of air voids.

Brown Sharp Gages

แปลว่า(english) A standard series of sizes refered to by numbers, in which the diameter of wire or thickness of sheet metal is generally produced and which is used in the manufacture of brass, bronze, copper, copper-base alloys and aluminum. These gage numbers have a definite relationship to each other. In this system, the decimal thickness is reduced by 50% every six gage numbers- while temper is expressed by the number of B&S gage numbers as cold reduced in thickness from previous annealing. For each B&S gage number in thickness reduction, where is assigned a hardness value of 1/4 hard.

สัมฤทธิ์

คำบาลีสมิทฺธิ

คำสันสกฤตสมฺฤทฺธิ

Brinell Hardness Testing

แปลว่า(english) Method of determining the hardness of materials; involves impressing a hardened ball of specified diameter into the material surface at a known pressure (10-mm ball, 500-kg load for aluminum alloys). The Brinell hardness number results from calculations involving the load and the spherical area of the ball impression. Direct-reading testing are generally used for routine inspection of forgings, and as a heat treat control function.