烧结的

In the study of microwave sintering of BaTiO〓 PTC ceramics, when the applied microwave power are above than a certain value, the abnormal axial shrinkage of the sintered sample will occur, by the analysis of SEM and XRD, it is found the microstructure and phase are different with conventionally sintered sample, the reason for this phenomenon is due to orientational grain growth by the action of electric field in the microwave sintering process.

微波烧结BaTiO〓电子陶瓷时，当所加的微波功率超过一定值时，首次发现烧结样品出现轴向异常收缩现象，采用SEM、XRD等分析发现其微观结构与常规烧结有巨大的差异，这是BaTiO〓材料的晶粒在微波场中受电场力作用而发生的取向生长造成的。

Due to the loss of O and Si at reducing atmosphere, the amount of intergranular phase is lower than that of the sintering additives.

研究发现，由于烧结助剂中的O和Si在烧结过程还原气氛下的损失，使得烧结体中晶界相的含量明显低于烧结助剂的加入量。

Using of Excel to establish the design schedule of sintered ore mixture,the calculation consisted of basicity balance,composition,ore consumption,production cost and rateable cost of sintered ore,etc,can be done.

用Excel建立了烧结矿的计算表，可以完成烧结矿的碱度平衡、烧结矿成分、矿耗、用料成本、可比成本等的计算，从而提高了计算效率，使得原来用计算器难以进行的多方案比较计算变得简便。

The analyses of size distribution and water absorption ability showed that sedimentary phase carbonates has the highest water absorption ability to form coarser pseudo-particle compared with metamorphous phase carbonates.

由於沈积岩相的菲律宾石灰石的结晶颗粒间压密程度较变质岩相的台湾大理石与日本大理石松散，在烧结过程中，容易分解并与铁矿反应，生成铁酸钙之烧结矿相比例较高，因而提升烧结矿之产率。

The results show that high energy ball milling refines and homogenizes the mixed powders, accelerates the sintering process, and with the increase of milling time, the grain is finer and the alloy is denser. HIP and forging is beneficial to decrease or remove the pole formed during the sinter course, and as the last process, forging breaks the junctions between TiC particles, the microstructure and mechanical properties of alloy are improved.

研究结果表明：高能球磨使粉末细化和成分均匀化，促进烧结进程，随球磨时间的延长，合金组织细化且致密；热等静压和锻造工艺可进一步减小和消除合金中烧结后残留的孔洞等缺陷；锻造作为最后工艺，可使TiC颗粒之间的连接破碎，促使硬质相颗粒弥散分布，从而改善烧结组织，提高合金的致密性及力学性能。

As a result, some ideas about the fabrication are put forward.The EPMA experiment results show that the main element such as W, Mo, Ti, Ni, Cu, Fe element are changed gradually in W-Mo and W-Mo-Ti FGM. In the layer rich in W, the grain are intervained and are mixed mechanismly. The same is to the layer rich in Mo and W-Mo. These grain felt up by some sinter. In Mo-Ti layer rich in Mo, the grains are also mixed mechanismly. Ni, Cu, Fe element assembled at interface. Ni melt by Cu plays an vital role in sinter effect. The microstructure characteristics result show that the compactness of W-Mo and W-Mo-Ti FGM is good.

电子探针实验结果表明W-Mo系、W-Mo-Ti系梯度功能材料中主要元素W、Mo、Ti、Ni、Fe、Cu分布整体上具有梯度变化规律，发现富W区、富Mo区、W-Mo混合区中颗粒交错分布，基本上以机械混合的形式存在，颗粒之间主要靠烧结剂的粘结作用实现致密化；以Mo为主要组分的Mo-Ti混合区，也是以机械混合的形式存在；Cu溶解于Ni形成固溶体更好地起到活化烧结能力，Ni、Cu、Fe在宏观层间界面富集，有利于烧结致密化。

Test separately to raw materials grain size , raw materials matching , frit such craft parameters as temperature , time of fritting ,etc.

试验分别对原料粒度、原料配比、烧结温度、烧结时间等工艺参数进行优化，得出制备抗菌吸附颗粒制备的最佳条件：当原料粒度为320目，分别加入总质量7%的废玻璃粉和粘土，加入0.5%的硝酸钠做助熔剂，以硅胶溶液造粒，450度烧结1.5小时可以获得吸附抗菌效果最佳的陶瓷颗粒。

In view of abnormality of about 200 ℃ temperature drop in the bottom of the sintering box during pressure sintering (after argon charged into the furnace) with imported pressure sintering furnace,analysis is made of the cause of the fault,and technical upgrading option is given together with a serials of specific measures.

针对进口压力烧结炉在加压烧结阶段出现烧结盒下部温度下降约200℃的异常情况，进行了故障的原因分析，提出了设备的技改方案，并采取了一系列具体措施。

The simulation was conducted by using steel 25 powder. Results show that great temperature gradients exist in the front of laser spot, and phase transformation temperature of powder around laser spot is higher than the powder's melting point.

以25号钢粉末为烧结材料进行了数值模拟，模拟结果表明：激光烧结过程中，在光斑中心的前端存在着极大的温度梯度；光斑中心的温度高于金属粉末的熔点，烧结过程中存在液相。

For the same size of powder, the porosity of the pressed blank decreases with the increase of pressing pressure. The porosity of pressed blank of coarse powder is smaller than that of fine powder for the same pressure....

当烧结温度和烧结时间相同时，细粉多孔钨的孔隙度要小于粗粉多孔钨的孔隙度，对同粒度粉末，压坯孔隙度随烧结温度升高而减小。

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