ตัวกรองผลการค้นหา
คลิกที่แต่ละคำเพื่อดูรายละเอียด
กระเบื้องกลวง, อิฐกลวง
ครอบยอดปล่องไฟ ทำด้วยดินเผาหรือโลหะ
เบ้าหลอมโลหะ
พื้นอิฐกลวง
พนักเก้าอี้, พนักพิงหลัง
ที่ตั้งกระถางดอกไม้ที่ทำด้วยเหล็กเส้นตัดโค้งเป็นรูปต่างๆ
รางกบ, ด้ามเครื่องมือ
(english) Submerged roll in the pot used to keep the strip submerged in the pot.
(english) The tendency of an object at rest to remain at rest, and of an object in motion to remain in motion.
(english) A process of box annealing or pot annealing ferrous alloy sheet, strip or wire after hot working and pickling.
(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.
(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. "