1.概述高强钢以其重量轻的优势广泛应用于自升式海洋平台中,目前海洋工程领域广泛使用690MPa级高强钢。为了进一步降低平台的重量,全球最大钢铁集团ArcelorMittal旗下INDUSTEEL钢厂开发了830MPa级的高强钢SUPERELSO830,该钢经热轧、淬...1.概述高强钢以其重量轻的优势广泛应用于自升式海洋平台中,目前海洋工程领域广泛使用690MPa级高强钢。为了进一步降低平台的重量,全球最大钢铁集团ArcelorMittal旗下INDUSTEEL钢厂开发了830MPa级的高强钢SUPERELSO830,该钢经热轧、淬火及回火工艺,全板厚上的韧性保证值为50J/-60℃,屈服强度≥830MPa,提供89mm和160mm两种板厚。为解决S U P E R E L S O830的焊接问题,INDUSTEEL和法国液化空气焊接集团合作开发了焊条电弧焊及药芯焊丝埋弧焊工艺,焊态下的试验结果表明,该焊接方案完全满足各项性能要求。展开更多
Gases have long been used for medical applications across the world. Medical oxygen, one of the most important medical gases, has been widely applied both in hospitals and at home. It is defined as a drug and its pipe...Gases have long been used for medical applications across the world. Medical oxygen, one of the most important medical gases, has been widely applied both in hospitals and at home. It is defined as a drug and its pipeline distribution systems are medical devices whose quality and management should conform to specific standards. In China, several deficiencies relating to the distribution and use of medical oxygen, which may lead to a number of fatal accidents like gas pipeline explosion and cause illicit product use, have been revealed in health facilities. They are the result of a lack of the relevant standards, management and practical experiences. To overcome these failures, it might be interesting to refer to the experience and regulations of other countries, for example, those of France.展开更多
文摘1.概述高强钢以其重量轻的优势广泛应用于自升式海洋平台中,目前海洋工程领域广泛使用690MPa级高强钢。为了进一步降低平台的重量,全球最大钢铁集团ArcelorMittal旗下INDUSTEEL钢厂开发了830MPa级的高强钢SUPERELSO830,该钢经热轧、淬火及回火工艺,全板厚上的韧性保证值为50J/-60℃,屈服强度≥830MPa,提供89mm和160mm两种板厚。为解决S U P E R E L S O830的焊接问题,INDUSTEEL和法国液化空气焊接集团合作开发了焊条电弧焊及药芯焊丝埋弧焊工艺,焊态下的试验结果表明,该焊接方案完全满足各项性能要求。
文摘Gases have long been used for medical applications across the world. Medical oxygen, one of the most important medical gases, has been widely applied both in hospitals and at home. It is defined as a drug and its pipeline distribution systems are medical devices whose quality and management should conform to specific standards. In China, several deficiencies relating to the distribution and use of medical oxygen, which may lead to a number of fatal accidents like gas pipeline explosion and cause illicit product use, have been revealed in health facilities. They are the result of a lack of the relevant standards, management and practical experiences. To overcome these failures, it might be interesting to refer to the experience and regulations of other countries, for example, those of France.
