ค้นเจอ 69 รายการ

คำศัพท์ช่างภาษาอังกฤษ - ไทยที่เกี่ยวข้องกับ "*hard*"

คลิกที่แต่ละคำเพื่อดูรายละเอียด

Aging 1

(english) A change in the properties of certain metal and alloys (such as steel) that occurs at ambient or moderately elevated temperatures after a hot working heat treatment or cold working operation. Typical properties impacted are hardness, yield strength, tensile strength, ductility, impact value, formability, magnetic properties, etc. See also Non-aging.

pack harden

ทำให้พื้นผิวชั้นนอกของเหล็กอ่อนให้แข็ง

hardy

(โรงเหล็ก) เหล็กสิ่วมีก้านเป็นรูปสี่เหลี่ยม สำหรับสวมรูทั่งตีเหล็ก

color harden

(โลหะ) ทำให้แข็งแกร่งด้วยชุบจนได้สีที่กำหนด เช่นการชุบให้เป็นสีกระบอกปืน

Pretensioning

(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.

Bake Hardenable Steel

(english) A cold-rolled, low-carbon sheet steel used for automotive body panel applications. Because of the steel’s special processing, it has good stamping and strength characteristics and after paint is baked on, improved dent resistance.

Band Saw Steel (Wood)

(english) A hardened tempered bright polished high carbon cold rolled spring steel strip produced especially for use in the manufacture of band saws for sawing wood, non ferrous metals, and plastics. Usually carries some nickel and with a Rockwell value of approximately C40/45.

Stucco

(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.

Carbonation

(Concrete Engineering) 1) Reaction between the products of portland cement (soluble calcium hydroxides), water and carbon dioxide to produce insoluble calcium carbonate (efflorescence). 2) Soft white, chalky surface dusting of freshly placed, unhardened concrete caused by carbon dioxide from unvented heaters or gasoline powered equipment in an enclosed space. 3) Carbonated, dense, impermeable to absorption, top layer of the surface of concrete caused by surface reaction to carbon dioxide. This carbonated layer becomes denser and deeper over a period of time. 4) Reaction with carbon dioxide which produces a slight shrinkage in concrete. Improves chemical stability. Concrete masonry units during manufacturing may be deliberately exposed to carbon dioxide after reaching 80% strength to induce carbonation shrinkage to make the units more dimensionally stable. Future drying shrinkage is reduced by as much as 30%.


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