寬硫化范圍 的英文怎麼說
中文拼音 [kuānliúhuàfànwéi]
寬硫化范圍
英文
long curing range-
Abstract : by utlizing abundant local resource of ytirium and combining the characteristics of magnesium, barium, calcium and silicon, a sort of composite nodulizer - ytirium - based heavy rare earth nodulizer was developed which is characterized by its good desulphurizing and deoxidizing rate effect, excellent effect to neutralize anti - nodulizing effect of trace elements, strong nodulizng effect and degeneration - resistance, good effect to fine matrix structure, decreased chilling tendency and wide scope of applicatiom using this nodulizer to produce some important castings such as water - cooled wall of blast furnace and roller could increase mechanical properties of central area and casting yield
文摘:利用江西省豐富的釔基重稀土，結合鎂、鋇、硅、鈣等元素的特性開發了釔基重稀土復合球化劑，該球化劑具有脫硫、脫氧、抗干擾元素、球化和抗球化衰退能力強，細化基體組織，白口傾向小，適用范圍寬等特點，應用於高爐冷卻壁，軋輥等關鍵鑄件上可提高心部力學性能和工藝出品率。The sulfur content in iron ores was determined by coulometry. under the actionof catalyst, the sulfur in iron ores was released in the way of so2 at hightemperature. h2so3 was titrated by iodine formed in the process ofelectrolytic action. the method has the characteristics of high accuracy and largemeasurement range
採用庫侖滴定法測定鐵礦石中的硫含量，利用智能測硫儀，在催化劑作用下，使鐵礦石中的硫在高溫下以so2形式釋放出來，用電解生成的碘滴定h2so3 ，該方法準確度好，測量范圍寬。
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