ASTM D2809 用发动机冷却液测定铝泵空腔腐蚀和冲蚀腐蚀的试验方法（带有发动机冷却剂的铝泵的气蚀和侵蚀特性的标准试验方法）

ASTM D2809发行信息

标准号ASTM D2809-2009(2017)

中文名 用发动机冷却液测定铝泵空腔腐蚀和冲蚀腐蚀的试验方法

英文名Standard Test Method for Cavitation Corrosion and Erosion-Corrosion Characteristics of Aluminum Pumps With Engine Coolants

发布日期2009

实施日期

废止日期无

中国标准分类号G04;J71

国际标准分类号23.080

发布单位US-ASTM

ASTM D2809适用范围

4.1x00a0;This test method can be used to distinguish between coolants that contribute to cavitation corrosion and erosion-corrosion of aluminum automotive water pumps and those that do not. It is not intended that a particular rating number, as determined from this test, will be equivalent to a certain number of miles in a vehicle test; however, limited correlation between bench and field service tests has been observed with single-phase coolants. Field tests under severe operating conditions should be conducted as the final test if the actual effect of the coolant on cavitation corrosion and erosion-corrosion is to be appraised. It is also possible, with proper control of the test variables, to determine the effect of pump design, materials of construction, and pump operating conditions on cavitation corrosion and erosion-corrosion damage.

1.1x00a0;This test method covers the evaluation of the cavitation corrosion and erosion-corrosion characteristics of aluminum automotive water pumps with coolants.

NOTE 1:x00a0;During the development of this test method, it was found that results obtained when testing two-phase coolants did not correlate with results from field tests. Therefore, the test method cannot be recommended as being a significant test for determining cavitation effects of two-phase coolants.

1.2x00a0;The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.3x00a0;This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific warning statements are given in 5.2.

1.4x00a0;This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

4.1x00a0；本试验方法可用于区分导致铝制汽车水泵气穴腐蚀和冲蚀腐蚀的冷却液和未导致气穴腐蚀和冲蚀腐蚀的冷却液。根据本试验确定的特定额定值不等于车辆试验中的特定英里数；然而，使用单相冷却液进行的台架试验和现场服务试验之间的相关性有限。如果要评估冷却剂对气蚀腐蚀和冲蚀腐蚀的实际影响，应在恶劣操作条件下进行现场试验，作为最终试验。通过适当控制试验变量，还可以确定泵设计、结构材料和泵运行条件对气蚀腐蚀和冲蚀腐蚀损伤的影响。

1.1x00a0；本试验方法包括评估带冷却剂的铝制汽车水泵的气蚀腐蚀和冲蚀腐蚀特性。注1:x00a0；在本试验方法的制定过程中，发现试验两相冷却剂时获得的结果与现场试验结果不相关。因此，不能推荐该试验方法作为测定两相冷却剂空化效应的重要试验。

1.2x00a0；以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。

1.3x00a0；本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前建立适当的安全和健康实践，并确定监管限制的适用性。5.2中给出了具体的警告声明。

1.4x00a0；本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。