Use of Sintered Alpha Silicon Carbide in Automotive Water Pumps

921477

11/01/1992

Event
SAE Brasil
Authors Abstract
Content
Increased leakage problems in automotive and truck engine water pumps has been experienced due to the effect of face-filming (buildup of crystalline deposits) . Seal leakage failures are related to the sealing face materials, the coolant formulation, and the mechanical seal design. Over the last few years, sintered silicon carbide as a low friction material has found increased acceptance and usage as a water pump seal face material to withstand more stringent service conditions for wear resistance, thermal shock resistance, and stability of shape.
This paper discusses the relationship of key material properties and surface characteristics on face-filming and service life improvement. Aspects of seal design, face material combinations, and new material developments are discussed.
Meta TagsDetails
DOI
https://doi.org/10.4271/921477
Pages
7
Citation
MacBeth, J., "Use of Sintered Alpha Silicon Carbide in Automotive Water Pumps," SAE Technical Paper 921477, 1992, https://doi.org/10.4271/921477.
Additional Details
Publisher
Published
Nov 1, 1992
Product Code
921477
Content Type
Technical Paper
Language
English