预烧

The resistance products have various types, and are for different lightning arrester, restrictive transformer, capacitor, electric machinery, vacuum switch, transformer neutral point sealed electrical instruments, cable, and railway line overvoltage.

本公司电阻片生产引进日立公司最新配方，工艺装备齐全、先进，采用全自动双向压制，四条窑炉烧制（排胶——预烧——烧成——热处理），侧面绝缘采用无机高阻层与有机绝缘漆相结合，检测设备齐全、准确，保证了电阻片具备优良的性能，各项指标明显优于GB11032标准。

Silicon powders were mixed with pore-forming agent of 30wt% and agglomerant of 1wt% and shaped into discs of Φ70 mm×5 mm by mould pressing under pressure of 40 Mpa.

通过添加30wt%的成孔剂颗粒，制备出孔隙率在55%左右的具有宏观球形孔的多孔氮化硅陶瓷。反应烧结前，在低于硅熔点的温度下，对多孔硅坯体进行不同温度和不同时间的预烧。

The big size anvil used wax as plasticizer at dewaxing. The main dewax stage from 270℃ to 400℃. Have gas release summit between 400℃ and 750℃. Setting up rational process date at dewax stage can prevent cemented carbide crack. But the crack will appear and impair the quality of products when the microcrack flaw inner compact.

石蜡工艺大制品顶锤在脱蜡阶段，270℃-400℃为成型剂石蜡的主要脱除阶段，400℃-750℃时有气体释放高峰状态，在脱蜡预烧阶段设置合理工艺参数可以防止合金裂纹，但压坯本身若存在微裂纹缺陷，必然会显露出来影响产品质量。

This heat treatment can prevent the formation of large Sr-Ca-Cu-O particles which can form in tape during isothermic heat treatment of high temperature and can release 30〓 phase in the tape.

发现在银套Bi-Pb-Sr-Ca-Cu-O预烧粉末轧制带热处理中37〓相晶粒以（001）晶面平行带面生成；等温高温处理产生含粗大Sr-Ca-Cu-O相颗粒的组织；升温处理可以避免形成Sr-Ca-Cu-O粗粒并消除30〓相。

The results show that MgO powder is enwrapped by the BST sol during the Sol-Gel process.

结果表明，采用溶胶－凝胶法制备出包裹MgO粉体的BST凝胶，凝胶经干燥、预烧得到BST/MgO复合粉体。

With the purpose of obtaining the ferroelectric cathode material with large emission current density, the preparation conditions of PZT series ceramic were studied.

通过掺杂改性和改进预烧条件等手段，有效地改善了材料的性能参数，制备出相对介电常数大于3 000的弛豫相铁电陶瓷和压电常数大于500×10-12C/N的铁电相铁电陶瓷。

The machining experiment has been studied to the briquet presintered at 1150oC. The machining cost related to cutting parameters, such as shaft speed, feedrate and cutting depth has been discussed.

通过对1150oC预烧后的坯体进行加工实验，讨论了主轴转速、进给速度、背吃刀量等切削参数与加工成本之间的关系，并得出了以最低成本为目标的切削参数值。

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。

When precalcined at 930℃, MnZn power ferrites have highest initial permeability and density, lowest power losses.

当预烧温度为930℃时，MnZn功率铁氧体具有最高的起始磁导率和密度，最低的功率损耗。

LiNi0.95Mg0.05O2 could be formed with I(003)/I(104) ratio 1～1.1, R-factor I(006+I(102)/I(101) ratio 0.67～0.94, and (108)/(110) splitted peak, c/a ratio 4.914～4.925, in R3m space group under the conditions of 210~280 MPa pelletized powder, heating rate 2℃/min to precalcined temperature 600℃ for 9～15h,crushed and repelletized, heated till 600℃ in 5℃/min, then switched to 1℃/min till 750℃ isothermally for 15～20h all in oxygen flow.

发现以210～280 MPa对试样压片，在氧气气氛下经2℃/min升温速率升温至600℃，预烧9～15h后，再粉碎、压片以5℃/min升温至600℃之后以1℃/min升温至750℃恒温15~20h，可得I(003)/I(104)峰比值1~1.1，R-factor I(006+I(102)/I(101)峰比值0.67~0.94，并且有(108)与(110)的分裂峰，同时c/a比值4.914~4.925，属于R3m空间群的锂镍镁氧化合物。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。