1) cracks growth(△a)
裂纹增长(△a)
2) Negative crack growth
裂纹负增长
3) Rapid Crack Propagation
快速裂纹增长
1.
It is of utmost importance for continuous development of plastics pressure pipe to set up and perfect the quality assurance system against the risk of rapid crack propagation and for the necessary long service life ____long term strength.
建立和完善快速裂纹增长危险和长期寿命—长期强度性能的质量监控体系对塑料压力管持续发展至关重要。
4) subcritical crack growth
亚临界裂纹增长
5) slow crack growth
慢速裂纹增长
1.
Slow Crack Growth Resistance of the Polyethylene Pipes Prepared by Mandrel Rotating Extrusion
旋转挤出聚乙烯管的耐慢速裂纹增长性能研究
2.
The mechanism and influencing factors on slow crack growth resistance of PE pipes were reviewed in the paper,and the countermeasures to improve the slow crack growth resistance of PE pipes were presented finally.
耐慢速裂纹增长性能是提高聚乙烯(PE)管材耐用性的关键因素。
6) resistance to slow crack growth
耐慢速裂纹增长
1.
This paper reviews three main tests including notch pipe test(NPT),full-notch creep lest(FNCT) and Pennsylvania notch test(PENT) through which the resistance to slow crack growth behavior of polyethylene is evaluated.
介绍了评价管材料耐慢速裂纹增长性能的3种实验方法:管材切口实验、全切口蠕变实验和宾夕法尼亚州切口实验的研究进展情况,并对3种方法进行深入分析和对比,可为管材料的研究和性能评价提供参考。
补充资料：△4-1,2,3,6-四氢化酞酐、△4-四氢苯酐
分子式：
CAS号：
性质：又称△4-1,2,3,6-四氢化酞酐、△4-四氢苯酐。白色结晶性粉末。熔点103～104℃(顺式)，闪点157℃，相对密度1.20。微溶于石油醚、乙醚，溶于乙醇、丙醇、氯仿和苯。遇水分解成酸。具腐蚀性。用熔融的顺丁烯二酸酐与丁二烯在苯存在下进行双烯加成反应制得。作为有机合成中间体，用于制取农药克菌丹、敌菌丹；也用作环氧树脂的固化剂、增塑剂及不饱和聚酯树脂、无溶剂漆的胶黏剂。
CAS号：
性质：又称△4-1,2,3,6-四氢化酞酐、△4-四氢苯酐。白色结晶性粉末。熔点103～104℃(顺式)，闪点157℃，相对密度1.20。微溶于石油醚、乙醚，溶于乙醇、丙醇、氯仿和苯。遇水分解成酸。具腐蚀性。用熔融的顺丁烯二酸酐与丁二烯在苯存在下进行双烯加成反应制得。作为有机合成中间体，用于制取农药克菌丹、敌菌丹；也用作环氧树脂的固化剂、增塑剂及不饱和聚酯树脂、无溶剂漆的胶黏剂。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条