ASTM D2809 用發(fā)動機冷卻液測定鋁泵空腔腐蝕和沖蝕腐蝕的試驗方法（帶有發(fā)動機冷卻劑的鋁泵的氣蝕和侵蝕特性的標準試驗方法）

ASTM D2809發(fā)行信息

標準號ASTM D2809-2009(2017)

中文名 用發(fā)動機冷卻液測定鋁泵空腔腐蝕和沖蝕腐蝕的試驗方法

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

發(fā)布日期2009

實施日期

廢止日期無

中國標準分類號G04;J71

國際標準分類號23.080

發(fā)布單位US-ASTM

ASTM D2809適用范圍

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；本試驗方法可用于區(qū)分導致鋁制汽車水泵氣穴腐蝕和沖蝕腐蝕的冷卻液和未導致氣穴腐蝕和沖蝕腐蝕的冷卻液。根據本試驗確定的特定額定值不等于車輛試驗中的特定英里數；然而，使用單相冷卻液進行的臺架試驗和現場服務試驗之間的相關性有限。如果要評估冷卻劑對氣蝕腐蝕和沖蝕腐蝕的實際影響，應在惡劣操作條件下進行現場試驗，作為最終試驗。通過適當控制試驗變量，還可以確定泵設計、結構材料和泵運行條件對氣蝕腐蝕和沖蝕腐蝕損傷的影響。

1.1x00a0；本試驗方法包括評估帶冷卻劑的鋁制汽車水泵的氣蝕腐蝕和沖蝕腐蝕特性。注1:x00a0；在本試驗方法的制定過程中，發(fā)現試驗兩相冷卻劑時獲得的結果與現場試驗結果不相關。因此，不能推薦該試驗方法作為測定兩相冷卻劑空化效應的重要試驗。

1.2x00a0；以國際單位制表示的數值應視為標準。括號中給出的值僅供參考。

1.3x00a0；本標準并非旨在解決與其使用相關的所有安全問題（如有）。本標準的使用者有責任在使用前建立適當的安全和健康實踐，并確定監(jiān)管限制的適用性。5.2中給出了具體的警告聲明。

1.4x00a0；本國際標準是根據世界貿易組織技術性貿易壁壘（TBT）委員會發(fā)布的《關于制定國際標準、指南和建議的原則的決定》中確立的國際公認標準化原則制定的。