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烘箱干燥法中风速对最终烘干重量的影响
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作者 霍书怀 邬军 《纺织标准与质量》 1998年第5期31-32,共2页
通过试验研究和理论推定,发现在使用烘箱法测定纺织材料的回潮率时,接近试样的风速主要对宏观聚集状态松散如纤维状的材料的测定结果影响较大,折算到回潮率可达0.15% ̄0.30%;而对宏观聚集状态紧密如纱线类材料则影响不明显。
关键词 烘箱 风速 重量 干燥法 纺织材料 烘干重量
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上浆率测试方法的改进实践 被引量:6
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作者 佟昀 《棉纺织技术》 CAS CSCD 北大核心 2008年第5期55-57,共3页
对上浆率的测试方法进行改进。针对在浆纱生产现场测试上浆率的方法存在的问题,提出了在采用退浆法测试上浆率试验中的改进之处:对于浆液浸透性高、退浆时间长、毛羽损失率高的纯棉品种,采取毛羽损失率根据实际退浆时间分档测定的方法;... 对上浆率的测试方法进行改进。针对在浆纱生产现场测试上浆率的方法存在的问题,提出了在采用退浆法测试上浆率试验中的改进之处:对于浆液浸透性高、退浆时间长、毛羽损失率高的纯棉品种,采取毛羽损失率根据实际退浆时间分档测定的方法;试样采用微波炉与烘箱结合烘干法。改进上浆率测试方法后,减少了试验误差,缩短了试验时间,提高了试验精度。 展开更多
关键词 上浆率 毛羽损失率 烘干重量 快速检测 试验精度
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Research on a Rapid Test Method of Dry Basis Weight of Paper-process Reconstituted Tobacco
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作者 Dandan SU Hua CHEN +4 位作者 Guangfei ZHAO Liran DING Wenjun ZHANG Jing LIU Guiyuan ZHOU 《Agricultural Science & Technology》 CAS 2017年第10期1948-1950,1978,共4页
This study aimed to optimize the rapid test factors of dry basis weight of reconstituted tobacco, in order to afford a reference test method for companies which produce reconstituted tobacco to better control the basi... This study aimed to optimize the rapid test factors of dry basis weight of reconstituted tobacco, in order to afford a reference test method for companies which produce reconstituted tobacco to better control the basis weight and coating ratio on line. The dry basis weight of reconstituted tobacco was tested by fast method and normal oven method individually. And the effects on the test values of different test factors such as temperature, time and the number of baking sheets were studied. Then the test values of these two methods were compared, so the proper factors of rapid test method were determined. As the baking temperature rose from 130 ℃ to 150 ℃, and the baking time rose from 1 min to 2 min, the difference between fast test method and normal oven method grew, and when the number of baking pieces rose from 3 pieces to 5 pieces, the difference between the two methods went down. The optimum test condition was baking temperature of 130 ℃, baking time of 1 min, and baking sample sheet number of 5. Under this condition, the value of fast test method was the closest to the test value of normal oven method, and meanwhile, the test factor was more proper for testing on line. The study will provide a reference for online controlling of dry basis weight and coating ratio of reconstituted tobacco. 展开更多
关键词 Reconstituted tobacco Rapid test method Dry basis weight Coating ratio
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