ผลการค้นหา

Cold Joint

แปลว่า(Concrete Engineering) A visible lineation which forms when the placement of concrete is delayed. The concrete in place hardens prior to the next placement of concrete against it.

Boron Steels

แปลว่า(english) The addition of boron in the range 0.0005-0.005% to certain steels increases the hardenability. A range of boron steels is now listed in the current BS 970 and are widely used for the production of cold headed fastenings.

Adiabatic Curing

แปลว่า(Concrete Engineering) The maintenance of ambient conditions during the setting and hardening of concrete so that heat is neither lost nor gained from the surroundings of the concrete.

hard steel

แปลว่าเหล็กกล้าที่ใช้ทำเหล็กเครื่องมือ

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.

Bright Bessemer Wire

แปลว่า(english) Stiff bright wire of hard temper. Normally wire is drawn down to size without annealing.

Brale

แปลว่า(english) A diamond penetrator, conical in shape, used with a Rockwell hardness tester for hard metals.

Pretensioning

แปลว่า(Concrete Engineering) A method of prestressing reinforced concrete in which the steel is stressed before the concrete has hardened and restrained from gaining its unstressed position by bond to the concrete.

Stucco

แปลว่า(Concrete Engineering) A portland cement mortar material that can be applied to the surface of any building or structure to form a hard and durable covering for the exterior wails or other exterior surfaces.

hard-board

แปลว่าไม้อัดเป็นแผ่นแข็ง ใช้เป็นวัสดุก่อสร้าง

hardened steel roller

แปลว่าขดเหล็กรูปทรงกระบอกของแหนบรองรับน้ำหนักรถ

Abrasive Wheels

แปลว่า(english) Wheels of a hard abrasive, such as Carborundum used for grinding.