Numerical Simulation of the Solidification Process of Heavy-section Ductile lron Casting

Proportion Solidification Technique of Blade Carrier by Heavy Section Ductile Iron

厚大断面球铁件叶片承缸均衡凝固工艺

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Several Main Issues in Production of Heavy Section Ductile Iron Castings

厚大断面球铁生产中的几个主要问题

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The results also show that it is necessary to restrict Si of base iron within 1.2% in order to control graphite degeneration and improve mechanical properties, when the base iron melt is treated with 1.8% nodularizer contained Y and 0.4% inoculant contained Ba.

当钇基重稀土球化剂和含Ba孕育剂加入量分别为1.8%和0.4%时，原铁液硅含量控制在1.2%以内，有利于防止厚大断面球墨铸铁件石墨畸变，提高铸件力学性能。

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The design characteristics, foundry technology and ultrasonic test method of heavy section ductile iron bearings for steam turbines was described and analyzed.

分析了汽轮机厚断面球铁件轴承座的设计特点、铸造技术和超声波探伤。

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The regular solution is derived for moderate thick shallow spherical shells by using the method of trig series and defining new special functions.

应用三角级数法，引入新的特殊函数，求得中厚扁球壳的一般解。

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Casting Process for Large Thick-Section Ductile Iron Housing

大型厚断面球墨铸铁机架的铸造

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Foundry Technology of Heavy Section Ductile Iron Castings for Steam Turbines

汽轮机厚断面球墨铸铁件的铸造技术

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Using Cored Wire Injection Process to Produce Heavy Nodular Iron Castings

用喂线法工艺生产厚大球墨铸铁件

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Currently there is no analytical solution about thick spherical hulls under uniform pressure, only American Navy Taylor Model Basin formula and Russian formula are available.

国际上还没有均匀外压下厚球壳的解析解，只有美国海军泰勒水池耐压球壳设计公式及俄罗斯相应的公式可以参考。

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The free loading test results in simulated cartridge show that the use of oblate spherical powder could be applied to increase the loading density effectively.

自由装填试验表明：采用大弧厚球扁药能有效提高装填密度。

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The Analysis of "Plastic Instability" Phenomenon of the Equal-thickness Spherical Shell under Uniform Intrinsic Pressure

均布内压等厚球壳局部塑性失稳研究

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Axial Symmetrical Analysis for Moderately Thick Spherical Shell

中厚球壳的轴对称变形分析

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A General Solution of Axisymmetric Problem of Arbitrary Thick Spherical Shell and Solid Sphere

厚球壳与实心球轴对称问题的一般解

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Imploding load induced deformation and spallation of thermal-plastic spherical shell of medium thickness

内聚爆炸载荷下热塑性中厚球壳的变形和层裂

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The main strategies for deepening the reform are: to establish a perfect management system of clubs;

深化中国排球职业化改革的主要对策有：建立完备的排球俱乐部管理体制：形成良性循环的运行机制；

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The aim of marketing analysis is to define the market territory. This study holds that it is suitable to define the market territory of each club to their city.

市场分析是为了明确市场界限，将全国排球联赛各俱乐部市场地域范围界定在举办城市较为合适。

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Investigation and Analysis of the Management of Some Host Towns in the National Volleyball Matches

全国排球联赛部分俱乐部主场经营状况调查研究

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Practical Research on Level-based Teaching at Volleyball Clubs

排球教学俱乐部分层教学的实验研究

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This paper has gone on using document information law for the nature of professional volleyball club, goal mechanism, organization mechanism, management system as well as the problem of internal, external condition and existence that professional volleyball club sets up, to let researcher reference.

对中国职业排球俱乐部的性质、组织机制、管理体制以及职业排球俱乐部成立的内部、外部条件和存在的问题进行了评述。

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The main consideration of participating the volleyball club are the timing, training location and training conditions and other factors. ( 4) The trainers of spare volleyball club in Hebei province, men more than women, tend to be younger.

会员参加排球俱乐部主要考虑的是时间安排、训练地点和训练条件等因素（4）河北省业余排球俱乐部健身教练员中，男性多于女性，趋于年轻化。

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