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研究填充量对ZZ2转子密炼机混炼质量和效率的影响,以确定ZZ2转子密炼机的合理填充量.结果表明,通过调整填充量,可改善ZZ2转子密炼机的混炼质量,提高生产效率;在转子转速为50 r·min-1下,当压砣压到位不再浮动的时间为15~25 s时,胶料混炼质量较好,此时的填充量为ZZ2转子密炼机的合理填充量. 相似文献
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研究XLH-150型双转子连续混炼机的混炼工艺参数与胶料性能间的关系,确定XLH-150型连续混炼工业化机台的最佳混炼工艺,并与传统密炼机三段混炼工艺进行对比。结果表明:XLH-150型连续混炼工业化机台的最佳混炼工艺为初炼采用GK-45E型啮合型密炼机,转子转速为50 r·min-1,温度为40℃,混炼时间为270 s,填充因数为0.6;补充混炼采用XLH-150型双转子连续混炼机,转子转速为40 r·min-1,过2遍连续混炼机,各段温度分别为70,65,60和55℃。采用连续混炼工艺的胶料性能优于采用传统三段混炼工艺的胶料性能,即胶料的Payne效应降低11%,滚动阻力降低15%,拉伸强度和撕裂强度略有提高;同时生产效率提高44%以上,总单位能耗降低39%。 相似文献
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本文通过胶料在实验室密炼机中混炼过程的显形研究和测定混炼过程压力、压力梯度,流速分布及温度、能量密度的变化,论述胶料在混炼过程中在密烁机内的各个区域的流动状况及其胶料的流动状况随混炼条件(填充系数、转子速度)的变化。 相似文献
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Dinesh Singh J. K. Gehlawat Musti S. Rao 《Journal of chemical technology and biotechnology (Oxford, Oxfordshire : 1986)》1990,47(2):127-136
Oslefins and diolefins are important intermediates in the petrochemical industry and the future promises a further substantial increase in demand. While several catalysts have been formulated in the past for the abstraction of hydrogen from butenes and propylene, these catalysts are inefficient in the abstraction of first hydrogen from butane. Bismuth molybdates (β and γ-phases) containing iron oxide and supported on alumina are used as catalysts in the present investigation on the oxidative dehydrogenation of n-butane. Effects of catalyst content, temperature and oxygen: n-butane ratio on conversion and selectivity to butadiene and (C4H8 + C4H6) are studied in the following ranges of experimental conditions: β-bismuth molybdate/100 mol support I(K), 3–9; γ-bismuth molybdate/100 mol support I(K), 5-20; temperature, 400–500°C; O2: butane ratio, 0.6:1.7. 相似文献
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讨论了以水滑石替代氢氧化钙作为碱催化剂的硫化特性,研究了水滑石/氧化钙组合对消除氟橡胶硫化试样气泡的作用。研究了水滑石对双酚硫化氟橡胶的耐水性能的影响。 相似文献
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石灰石品质对生料易烧性影响的研究 总被引:2,自引:0,他引:2
将化学分析方法和物理性能测试方法相结合,综合分析石灰石品质。在实验室进行生料易烧性试验,在同样试验条件和不同品质石灰石参与配料的情况下,通过测试灼烧后熟料中的fCaO含量,研究石灰石品质对生料易烧性能的影响,为实际生产提供理论参考。 相似文献
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《Journal of Adhesion Science and Technology》2013,27(2):247-257
To study the photo-grafting performance of acrylamide (AM) onto cellulose and the mechanical behavior of grafted cellulose, Whatman 41 filter paper was grafted with 30% AM in methanol by UV radiation using in situ technique. The amount of grafting (Gf) and tensile properties like tensile strength (TS) and elongation at break (Eb) were studied. In order to improve the tensile properties, cellulose was pretreated under UV and gamma radiations at different radiation intensities and subjected to grafting with 30% AM under in situ UV radiation. Cellulose was also pretreated by alkali (5% NaOH) along with UV and gamma radiations with different intensities and grafted with AM under UV radiation. Among the treatments, the alkali + UV irradiated 30% AM grafted sample showed the best mechanical performance (TS = 200%, Eb = 250%). 相似文献
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本项研究采用添加成核剂改性方法,促进聚甲醛成型中的结晶过程,改进材料的结晶结构,控制球晶大小,从而达到改进聚甲醛冲击强度的目的。 相似文献