查询词典 magnesium

With the material of magnesium chloride and sodium hydroxide,Magnesium hygdroxide was produced by adding Magnesium hygdroxide seeds .

以氯化镁为原料，以氢氧化钠为沉淀剂，采用加入氢氧化镁晶种的方法制备氢氧化镁。

Magnesium production line has three main production Rubber dedicated light magnesium oxide, magnesium oxide neoprene-level activity.

拥有氧化镁生产线3条，主要生产橡胶专用轻质氧化镁，氯丁胶级活性氧化镁。

The main raw material for producing magnesium carbonate and magnesium are magnesite, dolomite and bitten, which have abundant reserves in our country, especially the reserves of magnesite and dolomite, that not only holds the domain position but also has superior quality in the world, which establish the massy material developing foundation of magnesium industry.

但我们也应该看到虽然我国具有发展镁盐产品的优越条件，但因目前绝大部分现有生产厂家均属乡镇企业，资金有限，生产规模小，设备陈旧，技术力量薄弱，提高产量及质量的能力受到限制，且生产的品种单一，使我国镁盐的生产仍处于粗制初级、原料性产品的阶段，远不能满足国民经济发展的需要，高档、功能化产品仍需从国外进口，出口产品的价格只有进口产品价格的几分之一。

Magnesium methylate can be prepared by reacting magnesium with dry methanol; Primary alcoholates can be prepared by alcoholysis; the sterically demanding substituted magnesium alcoholates can be prepared by ester exchange or from dialkylmagnesiums.

综上所述，几乎所有的醇镁化合物都可以通过这三种方法进行制备：甲醇镁通过直接合成法制备；伯醇镁通过醇解法制备；仲醇镁或叔醇镁通过酯交换或烷基镁法制备。

Through constructing the material flow analysis method and model of the magnesium resources and their products, it identifies and quantifies the quantity, structure and characteristics of the substance metabolism of the magnesium metal materials in China's macro level. The input of abiotic resources and the ecological burden in the practice of smelting magnesium with Pidgeon process in China is calculated.

通过构建镁资源及其产品的物质流分析方法和模型，确定并量化了我国宏观层次镁金属材料物质代谢的数量、结构和特征，计算出皮江法炼镁的非生物资源投入量和生态包袱。

At the same time we produce high purity magnesium oxide powder, activate magnesium oxide powder, high purity fused magneisum oxide powder, Strontium Titanate powder, and supply Yttrium Oxide powder, magnesium oxide hydroxide powder.

同时又生产国内领先的高纯度氧化镁粉、高纯度活性氧化镁粉、高纯度电熔陶瓷氧化镁粉、钛酸锶粉等粉体材料，并还能提供高纯度二氧化钛粉和氧化钇粉以及高纯度氢氧化镁等原料。

Moreover, the hot compressive deformation behavior of the RS/PM AZ91 magnesium alloy and AZ91 alloy matrix composite were also investigated, the conclusions are drawn as follows:1. The processing parameters of the atomization-twin rolls quenching technology were optimized as follows: the diameter of the nozzle 1mm, the wheel velocity 25m/s, the pressure of atomization gas 0.3MPa and Ar gas for melt injection 0.1MPa. The RS AZ91 alloy flakes exhibited fine and uniform microstructures. When the flakes were extruded at 673K, extruded velocity of 0.1mm/min and extrusion ratio of 25:1,the magnesium alloy rods with clean surface, uniform dimension and excellent mechanical properties were obtained.2. The RS AZ91 magnesium alloy powders prepared by atomization-twin rolls quenched technology exhibited fine equiaxed grains with the grain size of 1-3μm, the phase constituent included supersaturate solid solution phaseα-Mg and miner fineβ-Mg_(17)Al_(12) phase. The as-extruded materials also exhibited equiaxed grains with the size of 5-7μm and a large number of fineβ-Al_(12)Mg_(17) and fewer AlMg_2Zn phases were detected in the alloy.

本文还研究了快速凝固/粉末冶金AZ91镁合金热压缩变形流变应力行为，快速凝固/粉末冶金法原位生成Mg_2Si增强AZ91镁基复合材料，经过系统的研究，获得如下结论：1、雾化-双辊急冷法在下列工艺参数组合下：双辊线速度25m/s；喷嘴直径1mm；熔体压射压力0.1MPa；雾化气体压力0.3MPa。，可获得宏观尺寸细小、微观组织均匀细小、综合性能优良的的快速凝固AZ91镁合金细碎箔带，快速凝固箔带在挤压温度为673K、挤压速度为0.1mm/min，挤压比为25：1时，可获得的外表光洁、尺寸均匀、组织性能优异的镁合金棒材。2、雾化-双辊急冷法制备的AZ91镁合金粉末态为细小等轴晶组织，晶粒尺寸1-3μm，组织为α-Mg过饱和固溶体和微量的细小β-Mg_(17)Al_(12)相组成；粉末挤压棒材为等轴晶组织，晶粒尺寸5-7μm，组织中含有大量细小的β-Al_(12)Mg_(17)以及AlMg_2Zn析出相，室温力学性能，抗拉强度383MPa，屈服强度275MPa，断后伸长率7.5%。

Magnesium alloy AZ31 has good ductibility and medium intensity, the price is lower as compared with other magnesium alloys, it is the most widely used anamorphic magnesium alloy.

AZ31镁合金具有良好的延展性和中等高强度，而且价格便宜，是目前商业化应用最普遍的变形镁合金，但镁合金的耐蚀性差使它的应用受到很大的限制。

Anhydrous magnesium chloride may be prepared from materials containing magnesium chloride such as magnesium chloride hydrate, carnallite or bittern by different dehydrating methods of organic solvent distillation or molecular sieve absorption, gas protective heating, discomposing the MgCl2-NH3 complex that can be composed from high boiling-point polar-solvent system...

无水氯化镁制备技术经历几十年不断的探索，取得了一些进步，但彻底改变耗能高、污染腐蚀严重、流程复杂的工艺过程，开发流程简单、低污染腐蚀、低成本的绿色工艺仍然需要更深入的研究。

10 kt/a anti-block industrial potassium nitrate is using magnesium nitrate and potassium chloride as raw materials,with the new production techniques of producing potassium nitrate with the newly-developed double decomposition circulating reaction method.By-product magnesium chloride hexahydrated with a small amount of potassium nitrate is called nitrogen-potassium-magnesium fertilizer.

张罡摘要： 1万t防结块工业硝酸钾的生产装置选用硝酸镁与氯化钾为原料，采用新研究开发的复分解循环反应法生产硝酸钾新工艺，副产品为六水氯化镁，六水氯化镁含少量硝酸钾，故称之为氮钾镁肥。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。