| 聚乙烯承压管道及原料耐慢速裂纹增长测试标准及实验要求 |
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| 引用本文： | 赵启辉. 聚乙烯承压管道及原料耐慢速裂纹增长测试标准及实验要求[J]. 中国塑料, 2008, 0(10) |
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| 作者姓名： | 赵启辉 |
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| 作者单位： | 上海乔治费歇尔管路系统有限公司; |
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| 摘 要： | 聚乙烯(PE)管材在施工和使用过程中会产生裂纹并缓慢扩展,评价耐慢速裂纹增长性能包括原料测试和管材测试两部分。介绍了国际标准和国家标准中关于耐慢速裂纹增大试验的要求、原理和应用,并列举了通过切口试验加速老化评价和预测 PE 原料长期性能和使用寿命的几种方法。
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| 关 键 词： | 聚乙烯 管材 耐慢速裂纹增长 使用寿命 |
Test Standard and Requirement of Pressurized Polyethylene Piping and Resistance of Slow Crack Growth |
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| ZHAO Qi-hui. Test Standard and Requirement of Pressurized Polyethylene Piping and Resistance of Slow Crack Growth[J]. China Plastics, 2008, 0(10) |
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| Authors: | ZHAO Qi-hui |
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| Affiliation: | Georg Fischer Piping Systems Ltd;Shanghai 201319;China |
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| Abstract: | During installation and service life,crack may be formed and grow slowly through the polyethylene pipe.In order to evaluate the slow crack growth resistance (SCG),there are two different test methods for the raw resin and piping product.Both international and national standards concerning these SCG's requirements,principles,and applications are reviewed.Meantime several accelerating methods by cutting a notch for predicting longtime hydrostatic property and final life of polyethylene resin are also introduc... |
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| Keywords: | polyethylene pipe slow crack growth resistance lifetime |
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