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| | In this paper the tension control in the production line of polyamide cord fabric rubberizing has been deeply discussed. It is the first to derive the correct mathematical model of tension, and to put right the mistake in the used model of elastic tension. Moreover, the decoupling control of tensions in series is discussed and the concept of coupling degree for decoupling control is established The result has already been successfully applied in the production line, and it has significance of guidance for s... | | 本文就锦纶帘子布浸胶机生产线中的张力控制作了深入的探讨,纠正了以往对弹性张力的错误数学模型,并首次导出了张力环节的准确的数学模型。另外,还对串联张力解耦控制作了探讨,建立了耦合度概念,并对该生产线中的解耦控制作了讨论。本文的结果,已成功地运行在上述生产线中,效果良好。本文的结果,对纺织、造纸,轧钢等类似问题,均有一定的指导意义。 | | 文摘来源 | | The production status and market situation of tire cord fabric in our country were commented, and the disparity and problem existed in Nylon Tire Cord industry were analyzed. The developing trend of tire cord industry was also pointed out. The raw material industry has to be strengthened. Attention should be paid to the digestion and improvement of improted technology. Speed up the renovation of old enterprises by intensive marketing and developing. The prospect of tire cord industry was predicted. | | 综述了国内锦纶帘子布的生产现状及目前国内帘子布市场近况,浅析了锦纶帘子布行业存在的差距和问题,提出了锦纶帘子布生产的发展趋势,必须发展原料工业,要注意消化、吸收、提高引进技术,加快老企业改造,走集约化经营和内涵发展道路;对帘子布的市场前景进行了预测。 | | 文摘来源 | | The activated carbon supported palladium and platinum (Pd+Pt/C) is used as a catalyst for synthesis of hydroxylamine (HYAM) in HPO process. Co impregnation was used to prepare the catalyst. Activity of the catalyst was 30~56 mmol/(L·h), and the total content of noble metal was 6%~10%. The catalyst was characterized by XPS. It was found that the atomic concentration of palladium and platinum on the surface, dispersion, and Pd/Pt atomic ratio were controlling factors for the activity. The surface atomic conc... | | 己内酰胺(CPL)是重要的化工原料之一,用于合成纤维、锦纶帘子布、尼龙6工程塑料等.目前,我国大型己内酰胺生产装置中,都采用较先进的由荷兰DSM公司发展起来的羟基胺磷酸盐肟法(HPO).合成CPL过程中主要中间原料羟胺(HYAM)的生产,是在磷酸体系... | | 文摘来源 | |   | | << 更多相关文摘 |
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