聚氨酯保温管的淬火介质采用水基单介质或马氏体等温分级淬火油淬火可使聚氨酯保温管获得优良的性能,并明显减小淬火畸变和开裂倾向。聚合物水溶性淬火剂应按照钢件的淬透性、工件质量、形状和工件的技术性能要求等作合理的选择。马氏体等温分级淬火油适用于中等和高淬透性大口径聚氨酯保温管的淬火冷却,可用于开式槽、闭式槽或密封箱式炉中的淬火槽等场合。

　　The quenching medium of polyurethane heat preservation pipe can be quenched by water based single medium or martensite isothermal step quenching oil. The polymer water-soluble quenching agent should be selected reasonably according to the hardenability of steel, the quality of the workpiece, the shape and the technical performance of the workpiece. Martensite isothermal graded quenching oil is suitable for quenching and cooling of medium and high hardenability large-bore polyurethane insulation pipes, and can be used for quenching and cooling of open groove, closed groove or sealed box furnace.

　　通常,大口径聚氨酯保温管热处理后的组织和性能主要决定于大口径聚氨酯保温管的淬火冷却,同时淬火也会导致钢件畸变甚开裂,因此钢的淬火冷却是热处理的关键工序。随着低碳经济的发展,在大力提倡减排和发展绿色热处理的当今,聚氨酯保温管的淬火冷却正愈益受到人们的重视。大口径聚氨酯保温管的淬火介质比较常用的是淬火油和水基淬火剂。

　　Generally, the structure and performance of large-diameter polyurethane insulation pipe after heat treatment are mainly determined by the quenching and cooling of large-diameter polyurethane insulation pipe. With the development of low carbon economy, the quenching and cooling of polyurethane insulation pipe is paid more and more attention when energy saving and emission reduction are advocated and green heat treatment is developed. Quench oil and water - based quench agent are commonly used as quench media for large diameter polyurethane insulation pipe.

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　　Learn more about polyurethane insulation pipe, ji 'nan insulation pipe and black jacket straight buried straight seam steel pipe knowledge sharing, welcome to pay attention to our website, if you have our company's product demand, welcome to call for details. http://www.sdhpgy.com