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阐述了USTERQUANTUM2型电子清纱器的性能特点,纱疵类型和清纱设定,纱线质量监测及质量控制过程中的应用方法,重视各种在线检测系统的数据应用和数据分析。 相似文献
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A flower-like Eu2+ and Dy3+ co-doped SrAl2O4 long-lasting phosphorescent (LLP) phosphor was synthesized via the inorganic- salt-based sol-gel method. The crystal structure, morphology and optical properties of the composite were characterized. X-ray diffraction diffusion (XRD) data and DSC-TG curves of the phosphor revealed that the SrAl2O4 crystallites have been formed after the precursor was calcined at 900 °C and to be single-phase SrAl2O4 at 1100 °C. The SEM photographs indicated that the sample exhibited a universal flower-like morphology with crystallite size of about 1-2 μm. After being irradiated with ultraviolet (UV) light, the flower-like phosphor emitted long-lasting green phosphorescence with an excitation peak at 365 nm and emission peak at 500 nm which was ascribed to the characteristic 5d-4f transition of Eu2+. Both the PL spectra and the luminance decay curve revealed that this phosphor exhibited efficient luminescence and long lasting properties. 相似文献
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我公司在№ 7V—Ⅱ型络筒机上生产11.6 tex(100%细绒棉)品种时,棉结增幅较高。+140%棉结由130个/kin增为194个/kin,增幅达49%;+200%棉结由31个/kin增为48个/km,增幅达55%。为此,针对该品种棉结增幅大的情况,在纱线通道上分析原因,找出了解决问题的办法。 相似文献
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