ตัวกรองผลการค้นหา
blow a whistle
แปลว่าเป่านกหวีด
blow to set on fire
แปลว่าฮุด
blown away
แปลว่าทรหวล
blow
แปลว่าชวย
blow moderately
แปลว่าลมโกรก
blow out
แปลว่ายางแตก
Blow
กริยาช่อง 2Blew
กริยาช่อง 3Blown
แปลว่าเป่า, พัด, ระเบิด
blow count
แปลว่าจำนวนครั้งของการตอกเสาเข็มต่อระยะจมที่กำหนด เช่น ทุก 30 ซ.ม.
Basic Oxygen Furnace (BOF)
แปลว่า(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. "
Basic Oxygen Process 2
แปลว่า(english) A steel making process wherein oxygen of the highest purity is blown onto the surface of a bath of molten iron contained in a basic lined and ladle shaped vessel. The melting cycle duration is extremely short with quality comparable to Open Hearth Steel.
