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原文传递 Silver Fuel Level Sensor Corrosion Program. Procject rept.

题名：	Silver Fuel Level Sensor Corrosion Program. Procject rept.
关键词：	Motor-vehicles; Fuel-sensors.;Sulfur-; Corrosion-; Hydrogen-sulfide; Mercaptans-; Propyl-; Southeast-Region-United-States; Olefins-; Silver-alloys; Ethyl-.
摘要：	During the spring of 2004, vehicles in the southeast region of the United States experienced fuel sender unit failures. It was later shown the sender unit failures were associated with sulfur components found in the fuel, which were found to be corrosive to the silver alloys used in fuel sender units. CRC during the fall of 2005 created a Silver Corrosion Panel to better understand the relationship between the fuel sulfur components and the sender unit failures. The Panel developed a two phase program, the first of which was designed to focus on understanding the corrosive relationship between elemental sulfur (S8), hydrogen sulfide (H2S) and mercaptans (ethyl and propyl) and the silver alloys used in fuel sender units. The first phase was conducted with a matrix of two fuels (one commercial and one blended from two hydrocarbon streams) with each fuel containing various concentrations of the above mentioned sulfur compounds. The Modified ASTMD 130 (Annex A1 of ASTM D4814-04b) test method and Petro-Canada's PCM 1005-33-111-test methods were used to evaluate silver corrosion. Phase II was to focus on testing various types of fuel sender units with various fuels containing varying amounts of elemental sulfur, hydrogen sulfide and mercaptans (ethyl and propyl). The concentrations of each sulfur component would be determined from the results of Phase I. Unfortunately, during the completion of Phase I, the OEM that was to conduct Phase II was not in a position to support the program nor supply the necessary fuel sender units. It was therefore decided by the CRC Performance Committee to cancel Phase II of the program.
报告类型：	科技报告