Results 1 to 10 of about 215 (62)
Teshugang, 2021 Valve steel NCF3015 Φ280 mm x 1700 mm electrode (/% ： 0. 03 ~0. 08C, 13.5 〜15. 5Cr, 30 ~ 33.5Ni, 1.7-2. 1A1, 2.4 ~2.9Ti, 0.65 ~0. 80Mo, 0.65 ~0.80Nb, 0.002 - 0.006B) is remelted into Φ340 mm 0. 80 t electroslag ingot with full coaxial inert gas shielding.
丁磊, 贾景岩
doaj
Research progress on the control of reactive elements in remelted ingots during the electroslag remelting process [PDF]
Electroslag remelting (ESR) is an important secondary refining technique that effectively removes impurities and nonmetallic inclusions, improves the solidification structure of ingots, and enhances the mechanical properties of steels.
Lifeng ZHANG, Shengchao DUAN
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Dianci bileiqi, 2017 采用固相反应法在10551095℃制备了CaCu3Ti4O12电介质陶瓷材料（以下简称CCTO）,并研究了不同烧结温度下CCTO陶瓷介电性能的变化,优化出了最佳制备CCTO陶瓷的工艺参数。利用XRD技术研究了不同烧结温度下CCTO陶瓷立方钙钛矿结构的晶格常数的演变过程,通过观察SEM证明了CCTO陶瓷的巨介电常数和晶粒尺寸大小成正比例,最后结合阻抗谱分析技术证明了CCTO陶瓷的低频介电损耗主要由晶界电阻决定,而晶粒电阻的大小直接影响着CCTO陶瓷的巨介电常数 ...
张家祥, 索娜, 罗发
doaj
Dianci bileiqi, 1976 半导体釉是由绝缘基釉加一种或多种导体而成的。这些导体有尖晶石晶体结构（RO·R2O3）。导体晶体形成聚合网络时获得导电率。釉的电阻与导体含量的函数关系呈S形曲线变化,导电率的差别取决于导体颗粒形状及其在釉中的分布情况。导体的导电率如不能达到时可通过加入添加剂得到满足。文中详细列举不同类型导体的半导体釉的化学组成、矿物组成或它们的釉式;导体中晶相含量与它们表面电阻系数的关系。介绍了SiC釉底料、保护层、复盖釉层的配方。半导体釉使用后会发生电解腐蚀而损坏。氧化铁釉工艺简单、便宜,但性能不够稳定、不美观 ...
彼得·克鲁斯培, 朱海仙
doaj
Teshugang, 2015 The pilot production of austenite stainless steel 1Cr18Ni9Ti ［/%: 0. 05 ~0. 09C, 17. 13 ~ 18. 24Cr, 9. 73 ~ 10. 6Ni, 5 X (C-0. 02) ~0. 80Ti］ remelting by 1. 2 t electro-slag furnace in normal atmospheric gas and by 5.
邓鹏辉, 周立新, 潘明旭, 张洲
doaj
Zhendong Ceshi yu Zhenduan钛合金由于导热率低，在磨削过程中工件表面容易产生烧伤或裂纹。采用图像法进行在线表面烧伤识别时，受到磨削液等现场因素的影响，采集的工件图像存在运动模糊或者目标区域被遮挡等现象，影响深度学习模型的识别效果。针对现场图像受损的问题，采用对偶学习和跳跃连接的方法，设计生成对抗网络的生成器、判别器和损失函数，对细节信息进行修复，重建退化图像。试验结果表明，经过重建的钛合金磨削现场图像的峰值信噪比（peak signal to noise ratio，简称PSNR）平均值达到25以上，结构相似度 ...
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Teshugang, 2015 The effect of argon flow rate (15~45 L/min) , triple slag (/% ： 63CaF227Al2O310CaO), quaternary slag (/% : 53CaF222Al2O320CaO, 5MgO) and pentary slag (/%： 50CaF222Al2O320CaO, 5MgO, 3TiO2) , and adding Al powder in ESR process on [Ti] in 3 t shielding ...
王海江, 徐朋, 杨松
doaj
[Repair methods of complex facial defect wounds involving paranasal sinuses and their clinical effectiveness]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi, 2023 Liang PF +13 more
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[Exploration of functional reconstruction and rehabilitation strategies for patients with destructive electric burns]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi, 2023 Shen YM, Dai Q.
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[Clinical application of three-dimensional printed preformed titanium mesh combined with free latissimus dorsi muscle flap in the treatment of squamous cell carcinoma with skull defect in the vertex]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi, 2022 Ma FX +5 more
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