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2011年7月27日至30日,全国玻璃纤维专业情报信息网第32次年会暨中国硅酸盐学会玻纤分会会议在江西奉新胜利召开。中国玻璃纤维工业协会副会长兼秘书长张福祥、江西省宜春市奉新县副县长黄彩鹏、南京玻璃纤维研究设计院院长赵谦等领导出席了会议,副网长国家玻璃纤维产品质量监督检验中心陈尚、江苏九鼎新材料股份有限公司姜鹄、四川省玻纤集团有限公司郭炯以及重庆国际复合材料公司、泰山玻纤有限公司的代表和来自国内外玻纤生产企业、装备制造厂商、研究机构180多位代表参加此次会议。 相似文献
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倍受行业关注具有专业技术信息特色的全国玻璃纤维专业情报信息网第30次工作会议暨信息发布会于2009年4月15-17日在美丽的春城昆明泰丽大酒店召开。全国玻璃纤维专业情报信息网网长、中材科技南京玻璃纤维研究设计院院长赵谦,中国复合材料工业协会秘书长吕琴,全国玻璃纤维专业情报信息网高级顾问姜肇中等领导及会议承办单位贵研铂业有限公司总经理朱绍武出席了会议并讲话, 相似文献
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全国玻璃纤维专业情报信息网秘书处 《玻璃纤维》2006,(3):41-41
2005年5月17-19日,著名的水电名城湖北宜昌迎来了全国玻璃纤维专业情报信息网第27次工作会议。来自玻璃纤维的生产企业、装备制造厂商、研究机构和有关协会的代表共160多人出席了本次大会。会议由秘书长王佳庆主持。网长单位南京玻璃纤维研究设计院赵谦副院长代表网长张耀明院士对 相似文献
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2010年7月14日至16日,全国玻璃纤维专业情报信息网第31次年会暨中国硅酸盐学会玻纤分会会议在美丽的海滨城市烟台召开。网长单位南京玻璃纤维研究设计院党委书记郭伟, 相似文献
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张秀珍 《化学推进剂与高分子材料》2006,4(5):66
“2006年中国航天第三专业信息网第27届年会”于2006年8月20~23日在沈阳召开,主办单位为沈阳航天新光集团有限公司(即111厂),与会代表65名,来自全国各地22个单位。网长单位航天科工集团31所刘林波所长,航天八院806所干效东副所长,沈阳航天新光集团有限公司邹积武副总经理、张中总工程师、张纯东总经理助理等领导出席会议并发言。会议分别由邹积武、张纯东主持。 相似文献
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<正>浙江巨石集团总部在浙江桐乡,是我国最大的玻璃纤维生产企业,该集团目前的生产规模位居亚洲第一、世界第四,并计划在2010年进入世界玻璃纤维行业前三强。2004年3月,巨石集团在成都市青白江区与四川成都振石投资有限公司共同投资组建了巨石集团成都有限公司,一期工程投资2.75亿 相似文献
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<正>阳春三月,春意盎然,2015年3月27日,中国硅酸盐学会玻纤分会理事会暨《玻璃纤维》杂志编委会换届工作会议在南京如期隆重举行。中国硅酸盐学会副秘书长谭抚、南京玻璃纤维研究设计院院长赵谦、中材科技副总裁朱建勋、泰山玻璃纤维有限公司董事长唐志尧、四川威玻新材料集团有限公司董事长刘钢、国家玻璃纤维产品质量监督检验中心主任陈尚等40多位理事和编委出席了本次会议。 相似文献
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P. P. Budnikoff 《Journal of the American Ceramic Society》1924,7(11):817-820
The different analytical methods proposed for the evaluation of gypsum have been subjected to an experimental test. A combination method, consisting of a fusion with KHCO3 and determination of CaO by KMnO4 titration, the SO3 by Andrews method of titration of BaCrO4 has been found to give very reliable results with the least consumption of time. 相似文献
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A novel technique serves to monitor instantaneous rates of loss of a volatile solute from a suspended drop during drying. A highly sensitive electron capture detector is used to monitor concentrations of SF6 released into a flowing gas stream from a suspended, drying drop. Simultaneously, the appearance and morphological development of the drop are monitored with a video camera. This provides the wherewithal of relating instantaneous rates of loss of the volatile solute to particular events during the development of particle morphology.
Initial experiments have been carried out with drops of aqueous solutions of glucose, sucrose, maltodextrin and coffee extract. The results clearly display the onset of the volatiles-retentive selective diffusion phenomenon. There is also substantial loss of the volatile component later in the drying process, when the drops undergo repeated ex ansion, bursting and cratering due to the formation of internaf bubbles. These experiments appear to be the first quantitative demonstration of major losses accompanying changes in drop morphology. 相似文献
Initial experiments have been carried out with drops of aqueous solutions of glucose, sucrose, maltodextrin and coffee extract. The results clearly display the onset of the volatiles-retentive selective diffusion phenomenon. There is also substantial loss of the volatile component later in the drying process, when the drops undergo repeated ex ansion, bursting and cratering due to the formation of internaf bubbles. These experiments appear to be the first quantitative demonstration of major losses accompanying changes in drop morphology. 相似文献
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ONACCURACYOFANALYSISOFOFHYDROGEN1前言我公司目前应用的氢气纯度分析方法有两种,一种是爆炸反应法,另一种是焦性没食子酸吸收法。几年来,人们对两种分析方法的准确性曾有过褒贬不一的评论。这里我们也谈谈自己粗浅的观点。2爆炸法测定氢气纯度一定量的氢气样品与适量的空气之均匀混合物因反应后生成液体水而引起气体体积减少,减少的体积等于参加反应气体体积之和。其中l/3为氧气,2/3为氢气。根据氢气取样量和反应前后混气体体积之差,以及氢气在反应中的体积比例关系,可计算出样品的氢气纯度。计算公式式中:A一混… 相似文献
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ANALYSIS OF RECENT MEASUREMENTS OF THE VISCOSITY OF GLASSES 总被引:5,自引:0,他引:5
Viscosity of Simple Soda-Silicate 500° to 1400°C Comparison of the results given by English with those of Washburn, Shelton and Libman, indicates a discrepancy in the absolute values of log10 viscosity amounting to 0.6, those of Washburn et al., being relatively too high. If correction for this is made, the isothermal curves of log10 viscosity as a function of soda content are smooth up to 50% Na2O, showing no inflection. The observations as a function of temperature T are all represented within accidental error by an equation of the type where all three constants vary regularly with the composition. Change of Viscosity of Glass (6SiO2, 2Na2O) due to Molecular Substitution of CaO, MgO and Al2O3 for Na2O The effect is clearly brought out by plotting (from the results of English) the change of log10η due to the substitution as a function of temperature. The curves each show a sharp bend at a temperature between 840° and 1050°C, which is designated the aggregation temperature Ta. If we divide these curves by the corresponding percentage substituted, we get curves for each oxide which are straight and parallel below the aggregation temperatures, the slopes (increase of change of log10η per 100°C) being −0.056 (CaO), −0.055 (MgO), −0.018 (A12O3) per per cent oxide substituted. For substitution of 1/2 molecule the slopes are −0.325 (CaO), −0.23 (MgO) and −0.18 (Al2O3) per 100°. At the aggregation temperature the change of log10η per per cent is a minimum, 0.03 to 0.06 for CaO, 0.12 for MgO, 0.07 for Al2O3. Evidence of Aggregation in Glasses, from viscosity Measurements The sharp bends in the plots of change of log10η due to substitution of an oxide for Na2O, suggest the beginning of molecular aggregation at these temperatures. These aggregation temperatures are close to the devitrification temperatures, but the effect on the viscosity curves cannot be due to actual devitrification since it does not change with time. Taking the aggregation temperatures as equal to devitrification temperatures, additional isotherms are roughly sketched into the equilibrium triangle of the system Na2O-CaO-SiO2. Change of Viscosity of Glass (4SiO2, 2Na2O) due to of Substitution of B2O3 for SiO2 The change of log10η (from the results of English) is plotted as a function of temperature, and also the change of log10η per per cent B2O3. The curves are more complex than for the substitution for Na2O. 相似文献
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面对日益激烈的市场竞争,摩托车油箱外观质量越来越成为影响销售的因素之一。文章介绍了改进工艺后的油箱涂装,该涂装体系提高了油箱外观的丰满度,降低了油箱涂装的生产成本。 相似文献
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A model is developed for the sedimentation from a suspension of two particle species of unequal densities and of different sizes. The composition and the thickness of various layers in the sediments are predicted using graphical and analytical methods. The model predictions were in excellent agreement with experimental results, when the particle size ratio was ≥ 108. When size ratio of the particles was 2.60 and 4.31 the agreement occurred in about 50 percent of the cases. 相似文献
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用两个形状指数表征粉煤灰颗粒形貌的研究 总被引:5,自引:0,他引:5
引用两个形状指数表征颗粒形状的概念,即先将颗粒形状近似为椭圆,再将椭圆图像分离:以圆为基准的颗粒宏观形状指数δ;以光滑椭圆为基准的颗粒轮廓凹凸度,即微观形状指数ζ。分析和发展了近似椭圆模型。并运用图像分析仪对粉煤灰、水泥样品进行实验。结果表明,粉煤灰颗粒的两个形状指数δ和ζ都大于水泥颗粒。证明粉煤灰颗粒的球形度、表面光滑度优于水泥,而且,随着粒径增大,δ和ζ呈下降趋势,表明磨制颗粒越粗。(?)粒形状越不规则。文中还运用近似椭圆模型再现了颗粒的模拟图像。 相似文献
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本文以三种典型煤的碳燃烧为研究对象,分别采用简单一维沉降燃烧方式和等温加热燃烧方式,实验研究了煤在快速加热条件下,其碳的初期和中,后期燃烧过程。以实验为基础,建立了煤的碳燃烧模型,变工况数值模拟了煤的碳燃烧过程,揭示了煤不同条件下的单颗粒碳燃烧特性。 相似文献