Calculation of the temperature fields in mechanical seals for the oil centrifugal pumps
Journal Title: Metallurgical and Mining Industry - Year 2017, Vol 9, Issue 2
Abstract
This article provides the calculation of heat distribution generated during dry sliding friction of the mechanical seals faces made of ceramic and ceramic-metal composites. The calculation was performed using the integral Laplace transform for Fourier law of thermal conductivity. The mechanical seal rings were modeled as two semi-infinite rods, which are in contact on front surfaces. This allowed calculating the heat distribution in friction zone in the form of temperature isochrones for different instants of time. Calculation results show that composite material based on chromium carbide has better frictional characteristics in comparison to self-bonded silicon carbide. Such properties are due to the features of the composite structure, which consists of carbide well rounded particles evenly spaced in a metal matrix. This leads to a reduction of the temperature gradient in conditions of a dry friction and increasing of crack growth resistance in comparison to silicon carbide based ceramics. Proposed model for heat transfer during friction can be used in oil industry for rational material selection of a sliding pairs, which work under high specific loads in aggressive and abrasive environments. Under these conditions, metal matrix composites based on chromium carbide and copper-nickel-manganese binder can be used as materials for manufacturing counterbodies for ceramics in oil and gas industry.
Authors and Affiliations
Thaer Abdulwahhab Shihab Thaer
Keywords
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