内腔加工

In view of the feature of filter shell body and the formability of HPb59-1 brass,the warm forging process was adopted to manufacture the precision forgings of shell body for the microwave communication apparatus.

针对滤波器外导体的结构特点和HPb59-1黄铜的成形特性，采用温锻精密成形加工方法对滤波器外导体的内孔型腔进行了近净成形加工。

The method of ultrasonic broaching waveguide entocoele mentioned in th e article is the impulse machining method, in the broaching process the broachin g tool is thrown over the vertical ultrasonic vibration to obviously improve wor king accuracy and surface quality of waveguide entocoele.

本文提出的波导内腔超声推挤方法是一种脉冲加工方法，其实质是在推挤工作过程中，给推刀施加纵向超声频振动，以大幅度提高波导内腔加工精度和加工表面质量。

Lactide, glycolide or caprolactone, biodegradable polyester and diisocyanate as materials are first bulk melt polymerized to prepare the degradable polymer with thermal deformation transforming temperature of about 37 deg.c. The obtained material is processed at temperature over melting temperature so as to shape into spiral rack, applied with stress at temperature higher than Ttrans to form shape easily operational handling and frozen to eliminate stress into the product.

本发明以丙交酯、乙交酯或己内酯，生物可降解聚酯及二异氰酸酯为原料，通过本体熔融聚合制备得到热致形变温度转化点在37℃左右的可降解高分子材料，将得到的材料在熔融温度以上进行加工、赋形制作成用于不同管腔内的螺旋管状支架；在T＞T trans 条件下施加应力，加工为便于手术操作的形状；冷冻定型消除应力，即得产品。

Based on the laser longitudinal mode splitting theory, a novel scheme of dual-frequency laser with large frequency-difference is presented using electrically controlled birefringence of liquid crystal, and the transmitted resonant mode splitting by birefringent of Fabry-Perot etalon has been analyzed theoretically. A new element of liquid crystal Fabry-Perot etalon is designed and fabricated, which serves as aselector and splitter of both laser longitudinal modes and Fabry-Perot etalons transmitted resonant modes. Two different experimental systems of laser-diode end-pumped Nd:YAG laser have been set up using two different LDs, and the transmission of liquid-crystal cell have been measured. When the empty LCFP is inserted in the cavity of high-power LD pumped Nd:YAG laser, the oscillation of a single laser longitudinal mode have been observed, such a result shows that the designed and fabricated LCFP element is capable of selecting single axial mode. While an anti-reflected liquid crystal cell is inserted in the cavity of Nd:YAG laser end-pumped by the high-power LD, it is difficult to confirm weather the laser longitudinal modes have been spitted or not. The subject is summarized in this thesis and the improvement of the project has been presented.

论文以激光纵模的分裂理论为基础，提出了可望获得几十GHz甚至上百GHz的液晶电控双折射双频Nd：YAG激光器的总体方案，并对用双折射效应分裂F-P标准具透射谐振模进行了理论分析；设计并加工了一种集激光纵模选择、激光纵模分裂和F-P标准具谐振透射模分裂于一体的多功能元件——液晶电控双折射F-P标准具；建立了两种不同功率激光二极管端面泵浦的Nd：YAG激光实验系统，并对液晶盒的透射性质进行了测试；将未灌注液晶的空液晶F-P摘要标准具插入大功率LD泵浦Nd：、叭G激光谐振腔内，观察到了单纵模激光输出，说明所设计和加工的液晶F一P标准具具有纵模选择能力；将镀有增透膜的液晶盒插入大功率LD泵浦Nd八7AG激光谐振腔内，是否产生了激光纵模分裂现象还难以确定。

The pattern of the tyre of agricultural vehicles has to fit in with the inclement working situations of the vehicles,which brings some difficulty to the pattern block mold design of the tyre.

文章介绍了农用轮胎的特点和轮胎模具的生产流程，然后结合轮胎花纹块的铸造、抛光、机械加工等工艺要求，阐述了农用轮胎花纹块模具设计方法并导出计算公式，内容包括：径向断面的工艺尺寸设计、轴向与周向的展开与弯曲设计；提出采用Coons曲面构造出模具内腔壁曲面的方法。

The shell body of slip-jaw clutch is a disk with complicated cavity, it is difficult to process the complicated cavity.

中文摘要：超越离合器壳体是一种具有复杂内孔型腔的盘状类零件，其异型型腔的加工非常困难。

Use of alloy chilled cast iron roller, a hard wear-resistant surface, cavity processing, so that the roll surface temperature uniformity.

辊筒采用合金冷硬铸铁，个面坚硬耐磨，内腔加工，使辊面温度均匀。

Use of alloy chilled cast iron roller, a hard wear-resistant surface, cavity plus ah, so that the roll surface temperature uniformity.

辊筒采用合金冷硬铸铁，个面坚硬耐磨，内腔加工，使辊面温度均匀。

The method is to move the stoving from inside the pellet producing apparatus to one alone stoving furnace outside the pellet producing apparatus. Inside the stoving furnace, there are waveguide tube connected to microwave generator and conveying belt in the bottom, and the pellet is fed to inside cavity of the stoving furnace on the conveying belt, stoved by microwave quickly and discharged on the conveying belt to vertical pellet furnace for roasting.

该方法是将由人造球团矿加工设备内完成的烘干段工艺移出到设备外完成，在设备外单独设置有一烘干炉体，该烘干炉体内腔有波导管与微波发生器连接，在烘干炉体的底部有输送带，球团通过输送带送入烘干炉体内腔，利用微波发生器产生的微波对球团快速加热烘干，经烘干后的球团，通过输送带送至球团竖炉完成焙烧工艺。

Jiang Ye Yiyang colored plant since 1997 zhejiang for the production of three Group took the body with yellow brass, there have been more than a decade of history, maturing technology, complete equipment, product quality higher than the national standards in the chemical products Composition, tolerance level of accuracy, mechanical properties, both inside and outside surface quality in areas such as technical requirements, Reflects a production capacity of enterprises, technical and management level.

化学成分，化学成分 GB/T5231—2001中的 H65化学成分范围，为使其性能更有保障，对主成分及有害杂质进行更严格控制，制订企业标准（Q/JY001—2004）。（2）公差及机械性能参照 GB/T1527—2006拉制管标准和浙江三花集团企业标准 Q/ZSH05·099—2002，制订企业标准（Q/JY001—2004），对其进行严格控制。三位四通阀的工作环境是液态或汽化的氟利昂等冷凝剂，其内腔气密性要求十分苛刻，这就需要 AC 黄铜管的内、外表面质量有极高表面质量，内、外表面光洁，无划伤、拉痕、起皮、沙眼、夹杂等加工缺陷，无酸、油、润滑等残留附着物。由于 AC 黄铜管在制作四通阀时，需要锯切、车削、冲孔等机加工，因此对公差精度要求很高。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。