ตัวกรองผลการค้นหา
hardpan
แปลว่าชั้นดินแข็งใกล้ผิวดิน (เกิดจากการเชื่อมยึดประสานด้วยแร่เหล็ก หรือเกลือแคลเซียม)
hard brass
แปลว่าทองเหลืองแข็ง ใช้ทำสะปริง ฯลฯ
Burnishing 2
แปลว่า(english) Smoothing surfaces through friction between the material and material such as hardened metal media.
Boron (chemical symbol B)
แปลว่า(english) Element N. 5 of the periodic system. Atomic weight 10.82. It is gray in color, ignites at about 1112 (degrees) F. and burns with a brilliant green flame, but its melting point in a non-oxidizing atmosphere is about 4000 (degrees) F. Boron is used in steel in minute quantities for one purpose only- to increase the hardenability as in case hardening and to increase strength and hardness penetration.
Brasses
แปลว่า(english) Copper base alloys in which zinc is the principal alloying element. Brass is harder and mechanically stronger than either of its alloying elements copper or zinc. It is formable and ductile; develops high tensile strength with cold-working and is not heat treatable.
Neat Cement-Paste
แปลว่า(Concrete Engineering) A mixture of water and hydraulic cement, both before and after setting and hardening.
Agglomerating Processes
แปลว่า(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.
Cure
แปลว่า(Concrete Engineering) Method of maintaining sufficient internal humidity and proper temperature for freshly placed concrete to assure proper hydration of the cement, and proper hardening of the concrete.
Bronze
แปลว่า(english) An alloy containing 90% copper and 10% tin. Used for screws, wire, hardware, wear plates, bushings and springs; it is somewhat stronger than copper and brass and has equal or better ductility.
oil hardening
แปลว่า(กลไก) การชุบเหล็กให้แข็ง ด้วยการชุบน้ำมัน, การชุบจะดำเนินเมื่อเหล็กถูกเผาจนร้อนจัดแล้วจึงแช่ลงไปในน้ำมัน แล้วปล่อยทิ้งไว้ให้เหล็กค่อย ๆ เย็นลงการกระทำโดยวิธีนี้จะทำให้เหล็กแข็งและไม่เปราะ
Bake
แปลว่า(english) Heat in an oven to a low controlled temperature to remove gases or to harden a binder.
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.