English translation for "heavy rare earths"
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- 重稀土
Related Translations:
- Example Sentences:
| 1. | Heavy rare earth metals and their compounds . determination of total rare earth contents . edta volumetric method 稀土金属及其化合物化学分析方法edta滴定法测定重稀土金属及其化合物中稀土总量 | | 2. | The result shows that with the addition of rare earth elements , ultrasonic irradiation and magnetic field , the chemical component , surface configuration , microstructure and properties of electroless co - ni - b and co - fe - b alloy changes remarkably . such kind of change can be described as the followings . firstly the depositing speed of electroless alloy bath is raised while the polarizability and cathodic overpotential are reduced ; secondly the surface quality of the alloy coating and adhesion of the coating and matrix are improved ; thirdly in the coatings the content of the elements in the transient group increases , but the content of cobalt decreased ; fourthly the amorphous structure is transformed to microcrystal structure and polycrystal structure ; fifthly the microhardness and wear resistance of the coating are enhanced ; sixthly coercitive force is reduced , and magnetoconductivity of the coating is increased ; lastly the magnetic intensity of the coating increases with the addition of energy and light rare earth elements such as ce , la and decreases with the addition of heavy rare earth elements such as y . on the other side , when the alloy coatings passes through the heat treatment under the temperature of 250 or 500 , their properties will change 结果显示化学沉积co - ni - b 、 co - fe - b工艺在稀土元素( ce 、 la 、 y 、 dy ) 、能量(超声波、磁场)介入后,沉积过程、合金成分、镀层形貌结构和性能都有显著变化,表现在:镀液的阴极极化过电位和极化度降低,沉积速度提高;镀层的结合力、表面质量改善;镀层中过渡族元素的含量增加,轻元素硼的含量降低,同时证实了稀土元素与过渡族元素共沉积的可能性;镀层的显微结构由非晶态向微晶和多晶态转变;镀层的显微硬度与耐磨性提高,力学性能优化;镀层的矫顽力降低;磁导率提高;镀层的磁化强度在能量(超声波、磁场)和轻稀土元素ce 、 la介入后提高,重稀土元素y介入后降低。 | | 3. | 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:利用江西省丰富的钇基重稀土,结合镁、钡、硅、钙等元素的特性开发了钇基重稀土复合球化剂,该球化剂具有脱硫、脱氧、抗干扰元素、球化和抗球化衰退能力强,细化基体组织,白口倾向小,适用范围宽等特点,应用于高炉冷却壁,轧辊等关键铸件上可提高心部力学性能和工艺出品率。 | | 4. | The lab has established a multi - component counter - current extraction theory and solved the problems in rare earth separation technology and has successfully established a big separation plant of heavy rare earths in high purity and high yield in jiangsu province , thus controlling the world trade market of heavy rare earths 1 .实验室建立了多组分的串级萃取分离理论,解决长期以来我国重稀土分离技术的难题,成功地在江苏省建成了一个高纯、高效重稀土分离的大企业,控制了世界重稀土市场。 |
- Similar Words:
- "heavy rainfalls flooded the crops" English translation, "heavy ram" English translation, "heavy rare earth" English translation, "heavy rare earth elements" English translation, "heavy rare earth metal" English translation, "heavy reader" English translation, "heavy recoil nuclei" English translation, "heavy recoil oil" English translation, "heavy recovery section" English translation, "heavy recruitment" English translation
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