烧结性

Using modified conventional powder metallurgy process for sintered Nd-Fe-B magnets , including annealing of ingot alloy, hydrogen decrepitating, modified jet mill and adding additive during jet milling, we have mass-produced high performance and high corrosion resistance sintered Nd-Fe-B magnets from a conventional ingot alloy without strict protections against oxidation.

利用改进的传统粉末冶金工艺(铸锭热处理、氢爆、改进型气流磨设备以及在气流磨中掺入添加剂等)，在无严格的防氧保护情况下，从传统合金铸锭出发，工业化生产出具有高耐蚀性的N48～50档烧结Nd-Fe-B 磁体。

After preparing PC-HA and β-TCP by wet chemical precipitation method separately , granular type bone grafts were collected by filtrating, freeze drying, tableting, sintering, mixing, and size screening. All the bone graft specimens were analyzed with scanning electric microscope, Fourier transform infrared spectrometer and X-ray diffraction.

本实验室以湿式化学沈淀法分别反应生成PC-HA与β-TCP后，经过滤、混合、乾燥、压锭、烧结、粉碎后以不同网目筛网控制颗粒大小，备制磷酸钙骨移植材(PC-HA/β-TCP)，藉由扫描式电子显微镜、傅氏红外光谱仪与X光绕射分析仪进行材料之物化性分析。

In order to improve the operation of BF,both burden material benefication and operation were optimized.The new sintering and pelleting technology,optimized burden structure and new coking technology are used and hearth activity,gas stream distribution have been improved for smooth operation.

为提高白云鄂博特殊矿高炉强化冶炼技术水平，在高炉精料和操作技术两大方面进行了优化，前者包括烧结和球团新技术应用、高炉含铁炉料结构优化、炼焦配煤优化；后者涵盖提高炉缸活跃性、改善煤气流分布及顺行状况等措施。

In this ***,nano-particles of NiCuZn ferrites powders were prepared with nickel nitrate,zinc sulfate,copper sulfate and ferrous sulfate as starting materials and ammonium oxalate as the precipitator by employing co-precipitation technique using oxalate precursors.Excellent composition uniformity NiCuZn ferrite powder can be obtained after drying and calcination.Toroidal samples were obtained after being formed and sintered.

本文以硫酸镍、硫酸铜、硫酸锌、硫酸亚铁和草酸铵为原料，应用化学共沉淀法制得分布均匀的先驱粉，经烘干、煅烧制成成分均匀性极佳的NiCuZn铁氧体粉末，再经成形和烧结等工艺，最后制得环形NiCuZn铁氧体材料。

Furthermore,concrete pouring of wall and floors cannot be finished once.In addition,there exits heat bridge between wall and roofing in roof structure so that energy saving and heat in-sulation of construction will be affected.

为满足对住宅大开间的建筑设计要求、提高建筑节能性及限制使用烧结粘土砖，预应力混凝土屋面结构、轻质GRC屋面建筑结构体系已大量应用于多层住宅中。

They have good thermal shock resistance, so being superior to burned magnesite chrome brick in service. These product's main usage are:sintering zone of cement rotary kiln, smelting furnace for non-ferrous metal, regenerator of glass furnace and chemical engineering furnaces,etc.

产品具有热震稳定性好、荷重软化温度高、抗碱性渣侵蚀性强等特点，使用性能优于烧结镁铬砖，适用于水泥回转窑烧成带、有色金属冶炼炉、玻璃窑的蓄热室及化工窑炉等热工设备。

It is found that Cr〓O〓 materials are hard to be sintered and densified unless the sintering process is in the reductive atmosphere.

研究表明，只有在还原性气氛下，才能于1550℃较低温度下烧结致密。

Transparent YGO ceramics were prepared by sintering at 1670℃ for 2h in vacuum using the powders calcined at 1100℃. The YGO ceramics shows a high in-line transmittance of 74.6% in the visible-light region, much higher than that of transparent Y2O3 ceramics prepared by the same process.

采用所制备的YGO：Eu纳米粉体，在1670℃真空烧结2h可获得透光性良好的透明陶瓷，样品在可见光区的最高透过率可达74.6%，高于相同工艺条件下制备的氧化钇透明陶瓷。

By controlling FeO and quicklime content, and improving the permeability and oxidation atmosphere of the sinter bed, the sinters with calcium ferrite as main binding phase can be produced.

采用控制混合料中氧化亚铁含量进行配矿，保证生石灰用量，改善料层透气性和氧化性气氛等措施，可以获得以铁酸钙为主要粘结相的烧结矿。

The experimental results indicated that, along with the variation of matrix composition, the percentage of the matrix area and the mean grain size increased while the contiguity of grains decreased with the increase of isothermal hold time.

实验结果显示；随著烧结持温时间的增加，基地相面积比率增加、接触性降低而晶粒大小则随之增加。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐