上海协科机械有限公司地址:上海浦东新区合庆镇王家车768号电话:021-58979081手机:13816283311传真:021-58976109联系人:赵怀中产品名称详细说明联系方式1?ó|D??￠H G M系列三环中速微粉磨性能特点:1、高效低耗。在物料、动力、成...上海协科机械有限公司地址:上海浦东新区合庆镇王家车768号电话:021-58979081手机:13816283311传真:021-58976109联系人:赵怀中产品名称详细说明联系方式1?ó|D??￠H G M系列三环中速微粉磨性能特点:1、高效低耗。在物料、动力、成品细度相同的情况下,比气流磨与搅拌磨的产量提高40%;2、使用寿命长。在物料、动力、成品细度相同的情况下,比冲击式粉碎机与涡轮粉碎机的磨损件使用寿命长,一般可达一年以上;3、磨腔内无滚动轴承和螺钉。不存在轴承与密封件磨损及螺钉松脱而毁坏机器等问题;4、先进的智能变频调速装置,使粒度更为均匀,调节更加方便;5、产品细度可一次性达到d≤5?m。DMC60-120型脉冲袋式除尘器采用了著名的袋式除尘配件公司(SBFEC)的原件,具有集成度高,可靠性强等特点;优良的滤袋装置不仅大大提高了清灰效果,而且又延长了滤袋的使用寿命,使换袋更为方便,并可降低对厂房净高尺寸的要求。适用于重晶石、方解石、钾长石、滑石、大理石、石灰石、陶瓷、玻璃等莫氏硬度不大于7级,湿度在6%以下的非易燃易爆的矿业、化工、建材、冶金等行业280多种物料的制粉加工,成品粒度在100～42...展开更多
通过座滴法(Sessile drop method)测定了真空条件下几种铝合金与α氧化铝多晶的润湿角,研究了温度和Mg,Cu等合金元素对α氧化铝-铝润湿性的影响,并通过金相观察、电子探针能谱分析、X射线衍射测试,原子吸收光谱定量分析等手段,探讨了润...通过座滴法(Sessile drop method)测定了真空条件下几种铝合金与α氧化铝多晶的润湿角,研究了温度和Mg,Cu等合金元素对α氧化铝-铝润湿性的影响,并通过金相观察、电子探针能谱分析、X射线衍射测试,原子吸收光谱定量分析等手段,探讨了润湿机理和实验过程中出现的一些现象。展开更多
Alpha-alumina(α-Al_2O_3) platelets were prepared via solid-state reaction using pseudo-boehmite as the starting material, while NH_4F and nano-SiO_2 were used as additives, and nitric acid was used as the binder. The...Alpha-alumina(α-Al_2O_3) platelets were prepared via solid-state reaction using pseudo-boehmite as the starting material, while NH_4F and nano-SiO_2 were used as additives, and nitric acid was used as the binder. The effect of these additives on properties of the alumina platelets was determined via scanning electron microscopy, X-ray diffraction, and measurements of the surface area and silicon content. A mechanism governing their role in the synthesis process was proposed. The results indicated that NH_4F could promote the formation of highly crystalline platelets. Addition of nano-SiO_2 could lead to increase in the diameter and reduction in the thickness of the platelets, and could also prevent their transformation to α-Al_2O_3. This addition weakened the effect of NH_4F because of the reaction of nano-SiO_2 with F-species and the formation of volatile SiF_4.展开更多
文摘上海协科机械有限公司地址:上海浦东新区合庆镇王家车768号电话:021-58979081手机:13816283311传真:021-58976109联系人:赵怀中产品名称详细说明联系方式1?ó|D??￠H G M系列三环中速微粉磨性能特点:1、高效低耗。在物料、动力、成品细度相同的情况下,比气流磨与搅拌磨的产量提高40%;2、使用寿命长。在物料、动力、成品细度相同的情况下,比冲击式粉碎机与涡轮粉碎机的磨损件使用寿命长,一般可达一年以上;3、磨腔内无滚动轴承和螺钉。不存在轴承与密封件磨损及螺钉松脱而毁坏机器等问题;4、先进的智能变频调速装置,使粒度更为均匀,调节更加方便;5、产品细度可一次性达到d≤5?m。DMC60-120型脉冲袋式除尘器采用了著名的袋式除尘配件公司(SBFEC)的原件,具有集成度高,可靠性强等特点;优良的滤袋装置不仅大大提高了清灰效果,而且又延长了滤袋的使用寿命,使换袋更为方便,并可降低对厂房净高尺寸的要求。适用于重晶石、方解石、钾长石、滑石、大理石、石灰石、陶瓷、玻璃等莫氏硬度不大于7级,湿度在6%以下的非易燃易爆的矿业、化工、建材、冶金等行业280多种物料的制粉加工,成品粒度在100～42...
基金supported by the Technology Development(Commission) Project of SINOPEC Catalyst Co.Ltd(Grant No.14-05-01)
文摘Alpha-alumina(α-Al_2O_3) platelets were prepared via solid-state reaction using pseudo-boehmite as the starting material, while NH_4F and nano-SiO_2 were used as additives, and nitric acid was used as the binder. The effect of these additives on properties of the alumina platelets was determined via scanning electron microscopy, X-ray diffraction, and measurements of the surface area and silicon content. A mechanism governing their role in the synthesis process was proposed. The results indicated that NH_4F could promote the formation of highly crystalline platelets. Addition of nano-SiO_2 could lead to increase in the diameter and reduction in the thickness of the platelets, and could also prevent their transformation to α-Al_2O_3. This addition weakened the effect of NH_4F because of the reaction of nano-SiO_2 with F-species and the formation of volatile SiF_4.
