坯

The reason of white band formation in the solidified shell in the mold has been studied by means of water modeling test and the analysis of the solidified microstructure of practical CC slab an.

为了定量把握结晶器中的钢水流动、钢水过热度及结晶器传热阻力对初期凝固坯壳的凝固不均一的影响，利用水冷铜板的浸渍实验，测定了各种铸造条件下的凝固坯壳厚度、凝固不均一度及树枝晶偏角；利用水力模型实验，并对实机铸坯的凝固组织分析，EPMA对负偏析带的线分析，得出了在结晶器中凝固坯壳上负偏析带的产生原因。

The results show that the shrinkage temperature of the leather tanned with QUIMITAN ABC is 101.4℃, and the physical-mechanical properties of QUIMITAN ABC tanning leather are better than that of chrome powder tanning leather; the content of Cr2O3 (0.4142 g/L) in the float of QUIMITAN ABC tanning is lower than that of the content of Cr2O3 (1.9481 g/L) chrome powder tanning, it's clear that QUIMITAN ABC tanning is good for Cleaner production; under the same content of chromic oxide, the physical properties of retanning leather with QUIMITAN ABC are better than that of retanning leather with chrome containing sytan and chrome powder, such as thichkening, flexibility, physical-mechanical properties.

结果表明：QUIMITAN ABC主鞣后的坯革的收缩温度为101.4℃，且其坯革物理力学性能高于用6%的铬粉主鞣后的坯革；QUIMITAN ABC主鞣后的废液Cr2O3含量(0.4142 g/L)明显低于用6%的铬粉主鞣后废液Cr2O3含量(1.9481 g/L)，用QUIMITAN ABC主鞣有益于清洁化生产；在Cr2O3含量相同的情况下，用QUIMITAN ABC复鞣的坯革在增厚率、柔软度、物理力学性能等方面都要好于含铬鞣剂及铬粉复鞣的坯革。

The results show that, when the electromagnetic field was applicated, the flowability and filling capacity of cupronickel alloy are increased, the surface cracks are eliminated, and the thin-walled cupronickel tube billets with smooth surface can be obtained due to the increase of flowability and filling capacity of cupronickel alloy. The solidification structure of the tube billets is evidently refined, the shape of Ni-rich phase changes from needle-like to bulk and the casting stress declines from 7.2 to 0.32 MPa. With the structure improving, the tensile strength and elongation increase by 5% and 36%, respectively, than those of ordinary continuously cast tube billets.

结果表明：在连铸过程中施加旋转电磁场能够提高金属液的流动性和充型能力，消除表面裂纹缺陷，从而制备出表面光滑的薄壁白铜管坯；在电磁力的作用下管坯凝固组织显著细化，富镍相由针状转化为团块状，同时铸造应力由未施加电磁场时的7.2 MPa下降至0.32 MPa；随着凝固组织的改善，施加磁场的管坯抗拉强度和伸长率与未施加磁场管坯的相比分别提高5%和36%。

The critical heating rate for different body radius was predicted by comparing the gas pressure when the peak degradation rate occurred with the threshold body strength which was determined by the diametric compression test of the green body during thermal debindering.

摘 要：以聚乙烯醇和NiFe2O4/Ni型金属陶瓷压坯为对象，采用热重分析研究PVA在N2气氛中的热脱脂行为，建立PVA热脱脂速率的数学模型，在此基础上，模拟并计算PVA分解产物气体在多孔粉末压坯内的压力构建情况；结合粉末压坯脱脂强度测试结果，分析粉末压坯在脱脂过程中压坯尺寸、粘结剂含量等因素对升温速率和脱脂时间的影响，获得不同半径尺寸压坯的极限升温速率。

According to the quality problems of continuous casting slab existed in Benxi Iron and Steel Group Co., the content, shape and chemical component of non-metal inclusions and the gas content in the slab of Q235 Grade were analyzed and measured by large sample electrolysis, metallographic analysis and SEM spectrum et al.

结合本溪钢铁集团公司连铸板坯质量存在的问题，应用大样电解、金相分析、扫描电镜能谱分析等检测手段，对选定典型钢种（Q235）铸坯中夹杂物的质量分数、形态及组成，铸坯中气体等进行了分析和综合评价，并提出了改善铸坯质量的具体措施，为进一步提高本钢连铸坯质量提供了理论指导依据。

On the basis of neglecting the change of parison dimensions and shape due to swell and sag during parison formation, average temperature distribution of paris...

本文在忽略型坯挤出后由于膨胀和垂伸而引起的型坯尺寸和形状的变化，利用热量平衡原理对挤出吹塑中型坯挤出阶段型坯截面平均温度分布进行了研究，提出了型坯截面平均温度分布的计算公式，其计算结果用实验进行验证。

The piezoelectricity ceramics application is extremely widespread, themost typical application is the buzzer and the security alarmapparatus, after 素坯 rolls over the ceramics the image formationpaper same thin slice to fire, makes the electrode in its both sides,then the polarization, such ceramics had the piezoelectricity, then itwith the tinsel agglutinated again in together, made a buzzer.

压电陶瓷的应用十分广泛，最典型的应用是蜂鸣器和安全报警器，把陶瓷素坯轧成象纸一样的薄片烧成后，在它的两面做上电极，然后极化，这样陶瓷就具有压电性了，然后再把它与金属片粘合在一起，就做成一个蜂鸣器。

In the paper, based on the analysis to the suppressing curve of the ceramic brick pieces, and point out the stability problems of hydraulic control system that affects press function and brick quality.

本文从对陶瓷压坯机坯体的压制曲线的分析出发，提出了影响压坯机性能及压坯质量的液压控制系统的稳定性问题，并着手对压坯机液控系统的压力稳定及压制过程中的动态响应特征进行了分析与探讨，提出了可行的解决方法。

The paper analyzed and investigated the tendencies character in the suppressing process and pressure stability of the hydraulic control system of the brick press .

本文从对陶瓷压坯机坯体的压制曲线的分析出发，提出了影响压坯机性能及压坯质量的液压控制系统的稳定性问题，并着手对压坯机液控系统的压力稳定及压制过程中的动态响应特征进行了分析与探讨，提出了可行的解决方法。

Fill the piping with stuff, line to define the length and position for heating tube, daub tube, warm-up, make the role touch the piping by pressing the push-bike, heat up the piping to the necessary temperature, cut off power supply, one-off complete the process in the bending model.

在管坯内装填填充物、划线确定管坯加热的长度和位置、涂抹润滑剂、管坯装卡、预热、通过脚踏机构加压使电极与管坯紧密接触、采用二次加热工艺将管坯加热至所需温度、切断电源，在弯曲成形模具上一次性完成管坯的弯曲成形加工。

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