坯

There are even injection moulding machines dedicated to making preforms having a rectangular tiebar clearance to fit the needs of making preforms.

有瓶坯专用的注塑机采用长型的四柱空间迎合瓶坯模具的需要。

The invention provides a method for preparing a tube-shaped cathode of a direct methanol fuel cell, belonging to the fuel cell field and comprising the steps of: dispensing a single solution for gel injection molding at first, then adding a mesophase bituminous coal micro ball into the single solution and stirring evenly to obtain stable slurry, then casting the slurry into a die, preserving heat until the single solution reacts with a cross-linker completely to obtain a carbon-biscuit, after drying and sintering the biscuit in vacuum, preparing a diffusion layer and a catalyst layer on the surface by dipping process, and then coating polyester electrolyte membrane with a burette, rolling the carbon on a warm table to solidify the electrolyte membrane.

一种制备直接醇燃料电池管状阴极的方法，属于燃料电池领域。本发明首先配制凝胶注模用单体溶液，之后将中间相沥青炭微球加入到单体溶液中，搅拌均匀得到稳定的浆料，然后将浆料浇注到模具中，保温至单体与交联剂完全反应，得到炭管素坯，将素坯烘干、真空烧结后，在其表面采用浸渍工艺制备扩散层、催化剂层，然后采用滴管涂覆聚合物电解质膜，在加热台上对炭管进行滚压，使电解质膜固化。

A Cu2Se powder and an In2Se3 powder prepared or purchased in the market are mixed in a planetary ball mill for ball milling and then cold-press molding so as to make a biscuit with mixed material of Cu2Se and In2Se3, the biscuit is positioned in a closed vacuum sintering furnace, and is sintered and cooled for de-molding in the H2 protective atmosphere, thereby obtaining the copper indium selenide target.

通过制备或市场购买Cu 2 Se粉末和In 2 Se 3 粉末，混合后在行星式球磨机中球磨，而后冷压成型，制得Cu 2 Se和In 2 Se 3 混合材料素坯，将此素坯置于密闭的真空烧结炉中，在H 2 保护气氛中，烧结，冷却后脱模，即得到铜铟硒靶材。

A self-made vacuum melting and argon shield continuous unidirectional solidification equipment was used to produce copper tube with continuous columnar structure.

采用自行研制的真空熔炼、氩气保护连续定向凝固设备制备出具有连续柱状晶组织的铜管铸坯，分析了铜管铸坯生产中熔体温度、连铸速度、冷却水量，结晶器等对其的影响。

The relationships between the presintering process including the ratio of heating-up, presintering temperature and holding time to alumina and the machiningperformance of its presintered briquet were studied respectively.

分别讨论了改变升降温速率、预烧温度和保温时间与坯体加工性能之间的关系；采用1150℃预烧，保温2小时，及分段控制升温速率的工艺，获得了适合机加工的坯体，能避免加工时的断裂、破碎或崩边。

A new calculating mode for bulging deformation of continuously casted slab is established in this paper.

本文建立了新的连铸板坯鼓肚变形的计算模型，与原有的模型相比，该模型更接近于坯壳变形的实际情况，并且还可求出坯壳应变速率的值。

When preset heating rate is 500℃/s and the non-pretreated NdFeB alloy compact is sintered at 600℃, relatively densified compact can obtain.

未经预处理的NdFeB合金生坯当预设升温速度为500℃／s时，在600℃的低温即可使压坯基本烧结致密化，磁体中白色富Nd相的分布既很均匀也很弥散。

In ancient China we have emperors, court designers, clay suppliers, and craftsmen such as wedgers, throwers, trimmers, tool makers, decorators, kiln firers; in almost all of these classes, again, subordinate gradations.

在古代中国，有皇帝，宫廷设计师，泥料供应商和各种拉坯，修坯，烧窑和装饰的手工匠人，而在这些阶级内部又有一些特殊的等级。

Owing to the disadvantages of the traditional process of austenitic stainless steel neck flange with a large hole,a new upsetting-extruding process with tubular billet was presented.

针对应用广泛的奥氏体不锈钢中间带大孔的高颈法兰类零件传统锻造工艺的不足，提出了一种利用管坯直接镦挤法兰的新工艺；用DEFORM-3D软件模拟了奥氏体不锈钢(0Cr18Ni9)法兰锻件的管坯镦挤成形过程。

The simulation results shows that when the hydroforming for real axle housing needs two bulge processes and the specific value of the two bulge ratio is about 1, the result is the best one; To obtain an appropriate route of loading force need adjust internal pressure and axial compression force for many times and according to the failure, the size of the two forces which has been mentioned can be rapidly and rationally adjusted; Because of good greasing conditions influencing largely, reducing the friction between tube blank and die inside surface as well as possibly not only makes more materials flow into the bulge area but effectively diminishes the axial compression force; The good or bad characteristics of tube blank material is also one of the decisive factors and when material is selected, we first consider its' formability.

模拟结果表明，当后桥壳需要两次进行胀形，两次胀形比比值约等于1时，胀形结果最好；合适的加载路径要经过多次调试，能根据胀形缺陷对内压力和轴向力的大小进行迅速地合理调整；良好的润滑环境对后桥壳液压胀形的影响巨大，要尽量减小管坯与模腔内壁的摩擦力，不但使更多的材料流入胀形区，而且能有效的降低轴向力的大小；管坯材料性能的好坏也是影响胀形的决定性因素，选材时首先要考虑材料的成形性。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了