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自动等离子弧气刨清根机的开发与应用 被引量:3
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作者 郑立娟 姜静威 邴红岩 《焊接技术》 北大核心 2006年第S1期69-70,共2页
主要阐述利用等离子孤热源,参照等离子弧切割与等离子弧焊接原理,配合移动小车,制作自动等离子气刨机,并在“大连国家原油储备基地”10万m^3立式原油浮顶罐的施工中进行了现场试验与应用。结果表明:等离子孤清根质量好,效益高,清根后不... 主要阐述利用等离子孤热源,参照等离子弧切割与等离子弧焊接原理,配合移动小车,制作自动等离子气刨机,并在“大连国家原油储备基地”10万m^3立式原油浮顶罐的施工中进行了现场试验与应用。结果表明:等离子孤清根质量好,效益高,清根后不用2次打磨即可焊接,该技术还可以应用于不绣钢、有色金属等刨削加工,是一项值得推广的技术。 展开更多
关键词 等离子弧 气刨 清根机
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自动清根机在高压封闭组合电器外壳制造中的应用
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作者 孟祥喜 薛根奇 张全民 《河南科技》 2015年第22期32-34,共3页
为保证高压电器压力容器焊缝质量,平高电气550k V,800k V,1100k V气体绝缘金属封闭组合电器(GIS)断路器钢制罐体的纵焊缝经过埋弧焊焊接后,需要清理另一侧的坡口根部,除去焊渣等异物,露出金属基材。目前,该清理工作主要是靠人力手工打磨... 为保证高压电器压力容器焊缝质量,平高电气550k V,800k V,1100k V气体绝缘金属封闭组合电器(GIS)断路器钢制罐体的纵焊缝经过埋弧焊焊接后,需要清理另一侧的坡口根部,除去焊渣等异物,露出金属基材。目前,该清理工作主要是靠人力手工打磨,工作环境恶劣,效率低下,且严重影响钢壳体的焊接质量。自动清根机在核电、石油等设备的生产制造中已广泛应用,但在电力设备中应用的较少。为提高生产效率,缩短供货周期,公司首次将其应用在GIS断路器钢制罐体的焊缝成形中,经对罐体进行探伤,零件焊缝合格。 展开更多
关键词 断路器 埋弧焊 自动清根机 焊缝
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Comparative evaluation of surgical stress of different lymph node dissection for gastric cancer 被引量:1
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作者 Xiang Hu Shengwei Xie Wei Wen Dayu Tian Quan Bao 《The Chinese-German Journal of Clinical Oncology》 CAS 2007年第4期305-310,共6页
Objective: To evaluate the effects of surgical trauma of open surgery on the patients with gastric carcinoma who underwent different lymph node dissection. Methods:Total 30 patients with gastric carcinoma were divided... Objective: To evaluate the effects of surgical trauma of open surgery on the patients with gastric carcinoma who underwent different lymph node dissection. Methods:Total 30 patients with gastric carcinoma were divided into three groups (D1, D2, and D3) according to the extent of lymph node dissection. Peripheral blood samples were taken to measure the levels of interleukin-6 (IL-6), interleukin-8 (IL-8), C-reactive protein (CRP) and polymorphonuclear elastase (PMNE). Ad- ditionally, leucocytes and lymphocytes counts in peripheral serum were also detected. Results: All the three groups showed a significant increase of the levels of IL-6, IL-8, CRP and PMNE after operation. There was no significant difference between D1 and D2 groups. When the comparison was made between D3 group and the other two groups, it showed higher concentration of IL-6, IL-8, CRP and PMNE in serum of D3 group. Leucocytes count showed no difference among the three groups. After operation, the patients in three groups had transient lymphocytes decrease on the second and third postoperative days, the lymphocytes count in D3 group was still lower while those in D1 and D2 groups began to increase. Conclusion: IL-6, IL-8, CRP and PMNE can be used to monitor surgical stress. Using these parameters, we found that extended lymph node dissec- tion of D3 group led to more postoperative stress than D1 and D2 groups. 展开更多
关键词 INTERLEUKIN-6 INTERLEUKIN-8 C-reactive protein PMNE gastric carcinoma surgical stress ELISA
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