คำศัพท์ที่เกี่ยวข้องกับ "*bo*"

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Boring Tool

(english) A cutting tool in which the tool bit,the boring bar and in some cases the tool holder are incorporated.

Boron Steels

(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.

Bonding Clay (Bonderise)

(english) Any clay suitable for use as a bonding material.

Boron (chemical symbol B)

(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.

Basic Oxygen Furnace (BOF)

(english) "WHAT A pear-shaped furnace, lined with refractory bricks, that refines molten iron from the blast furnace and scrap into steel. Up to 30% of the charge into the BOF can be scrap, with hot metal accounting for the rest. WHY BOFs, which can refine a heat (batch) of steel in less than 45 minutes, replaced open-hearth furnaces in the 1950s; the latter required five to six hours to process the metal. The BOF's rapid operation, lower cost and ease of control give it a distinct advantage over previous methods. HOW Scrap is dumped into the furnace vessel, followed by the hot metal from the blast furnace. A lance is lowered from above, through which blows a high-pressure stream of oxygen to cause chemical reactions that separate impurities as fumes or slag. Once refined, the liquid steel and slag are poured into separate containers. "

Body force:

(english) An external force acting throughout the mass of a body. Gravity is a body force. An inertial force is a body force.

Carbonyl

(Environmental Engineering) A functional group with an oxygen atom double bonded to a carbon atom.

boric acid

(เคมี) ผลึกสารประกอบไม่มีสี H4BO3)7 ได้จากปฏิกริยาของ borx กับ aacid ใช้ในทางยาและกันบูดเน่า

Boundary value analysis

(Software Engineering) a black box testing method that designs test cases that exercise data boundaries

borax

ธาตุชนิดหนึ่ง มาจาก boron ใช้ทำน้ำประสาน

Box Annealing

(english) Annealing a metal or alloy in a sealed container under conditions that minimize oxidation. In box annealing a ferrous alloy, the charge is usually heated slowly to a temperature below the transformation range, but sometimes above or within it, and is then cooled slowly; this process is also called close annealing or pot annealing.

stove bolt

สลักเกลียวที่ใช้แป้นเกลียว หรือน็อตถ้าชนิดสลักเกลียว แต่ไม่ใช้แป้นเกลียวเรียกว่า machine screw , สลักเกลียว stove bolt มีร่างเกลียวหบายกว่าร่องเกลียวของสลัก machine screw