Change in the Microgeometry of Sliding-Friction Units during Operation in Nitric Acid,
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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The paper studies slide bearings made of nonmetallic materials with lubrication of 42 nitric acid. Studied were bearings made of antifriction graphite, fluoroplastic-4 and slag microcrystalline glass at specific pressures of 1.0-9.0 kgsq. cm. and a journal circular speed of 1-8.3 ms. Removable journals were made from acid-resistant chrome-nickel austenite-ferrite stainless steel EI-654. The microgeometry of the friction surfaces was determined on the VEI-Kalibr profilometer-profilograph and the MIM-7 microscope.
- Machinery and Tools