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塔式机立窑塔磨损的修复方法
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《四川建材》 1995年第4期30-31,共2页
塔式机立窑塔篦磨损的修复主要是通过焊接来完成。焊接方式采用角堆焊,型式△用多道焊缝连续焊接。多道连续焊接的焊缝高度约12~15mm,焊缝表面凸出。焊接前塔篦清理干净,无油污无灰尘。焊条采用普通碳钢焊条。塔篦体积较大较厚,为了加... 塔式机立窑塔篦磨损的修复主要是通过焊接来完成。焊接方式采用角堆焊,型式△用多道焊缝连续焊接。多道连续焊接的焊缝高度约12~15mm,焊缝表面凸出。焊接前塔篦清理干净,无油污无灰尘。焊条采用普通碳钢焊条。塔篦体积较大较厚,为了加快进度,宜用φ5mm焊条。 展开更多
关键词 机立窑 连续焊接 焊接方式 磨粒磨损 堆焊焊条 焊接电流 焊缝表面 塔式 多道焊缝 无油污
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Review of Antifouling Finishing of Textiles:Theme,Evolution and Fabrication Methods
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作者 DING Fengmei GUO Yali +4 位作者 WANG Qingmiao WANG Xuehui WANG Ping XING Zhiqi CHEN Luyi 《Journal of Donghua University(English Edition)》 CAS 2024年第6期616-629,共14页
Antifouling textiles have been a hot research field in the last ten years.But lately,the European Union(EU)is expected to ban the production of C6 fluorinated water repellent,oil repellent and antifouling agents from ... Antifouling textiles have been a hot research field in the last ten years.But lately,the European Union(EU)is expected to ban the production of C6 fluorinated water repellent,oil repellent and antifouling agents from 2025,achieving complete fluoride-free antifouling measures.In the context of the current policy regulations on fluorine-free treatment in the waterproof,oil repellent and antifouling finishing field,this paper conducts a literature survey and comprehensive understanding of the current research status and trend in fluorine-free antifouling finishing.CiteSpace and Carrot2 are used to conduct a literature review of the latest papers in two databases,Web of Science(WoS)and China National Knowledge Infrastructure(CNKI).Firstly,the theoretical evolution and technical characteristics of textiles antifouling finishing technology are systematically discussed,and the technological differences of antifouling finishing textiles for different demands are compared.Secondly,the three main stages of the development of textile antifouling finishing technology and its corresponding finishing methods are summarized.Finally,three paths for the future development of fluorine-free antifouling finishing are prospected:construction of low surface energy,construction of uniform rough surface and low surface energy,and construction of multistage rough surface with low surface energy.To facilitate the transition of the industrial sector to fluorine-free,regulatory restrictions could be strengthened by enhancing the sampling inspection of apparel fabrics,detecting fluorine in wastewater discharges and restricting the production of fluorine-containing finishing agents by manufacturers. 展开更多
关键词 antifouling finishing fluorine-free hydrophobicity oleophobicity surface roughness
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劳拉的星星
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《第二课堂(小学版)》 2008年第12期57-57,共1页
劳拉一家以为妈妈的新工作而从乡下搬到城里,可活泼贪玩德尔劳拉总是忘不了无油污路的乡下时光,不愿喝周围的任何人说话。这时。
关键词 星星 无油污 照亮 活泼 工作 周围 玩具 生活 保护 个体
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