to passivate high purity process piping
Arabic translation: تحييد تفاعلات أنابيب الإنتاج عالي النقاء
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| 14:44 Mar 19, 2008 |
| English to Arabic translations [PRO] Science - Chemistry; Chem Sci/Eng | |||||||
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|  Selected response from: Awad Balaish Saudi Arabia Local time: 13:36 | ||||||
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Answers
1 hr confidence: 
peer agreement (net): +1
peer agreement (net): +1عملية تغطية الأنابيب (المواسير) بالسيترك أسيد عالية النقاء Explanation: الرجاء التأكد من صحة اقتباسك للعبارة -------------------------------------------------- Note added at 2 hrs (2008-03-19 17:21:10 GMT) -------------------------------------------------- لمعالجة تغطية سطح تمديدات الأنابيب بالستريك أسيد بجودة فائقة Example sentence(s):
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17 hrs confidence: peer agreement (net): +1
peer agreement (net): +1الحماية بطبقة خاملة (سلبية/ غير فعالة) لشبكة الأنابيب المستخدمة في العمليات عالية النقاء Explanation: Passivation is the process of making a material "passive" in relation to another material prior to using the materials together. For example, prior to storing hydrogen peroxide in an aluminium container, the container can be passivated by rinsing it with a dilute solution of nitric acid and peroxide alternating with deionized water. The nitric acid and peroxide oxidizes and dissolves any impurities on the inner surface of the container, and the deionized water rinses away the acid and oxidized impurities. Another typical passivation process of cleaning stainless steel tanks involves cleaning with NaOH and citric acid followed by nitric acid (up to 20% at 120F) and a complete water rinse. This process will restore the film, remove metal particles, dirt, and welding generated compounds (ex. oxides). In the context of corrosion, passivation is the spontaneous formation of a hard non-reactive surface film that inhibits further corrosion. This layer is usually an oxide or nitride that is a few atoms thick. من جامعة الملك خالد كلية العلوم قسم الكيمياء سلوك المعادن المحميه بطبقة خاملة ( Passivation ) http://www.kku.edu.sa/CollegesAndInstitutes/ScienceCollege/C... see this search that shows that 'high purity process " is an adjactive for piping and not to Passivation process itself http://www.google.com/search?hl=en&q="Passivation" "high pur... -------------------------------------------------- Note added at 17 hrs (2008-03-20 08:22:59 GMT) -------------------------------------------------- إضافة هذا الشريط الواقي(الطبقة الخاملة) لشبكة الأنابيب يمنع أي تأكل إضافي بين جدران الأنابيب والسوائل المنقوله خلالها |
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