Methane ignition by frictional impact between aluminum alloys and rusted steel. Report of investigations
Technical Report
·
OSTI ID:7198948
Research was conducted on ignition of methane by frictional sparks from aluminum alloys impacting rusty steel at typical coal mine fan speeds. Objectives were to establish incendivity of different commercial and experimental aluminum alloys and to evaluate several substitute materials for the aluminum-steel combination. All aluminum alloys produced some ignitions in a specially designed impact apparatus. Harder experimental alloys and those containing silicon tended to be more incendive than others. With normal experimental conditions, steels, brass, and plastic did not ignite methane-air when impacted on rusty steel. Constructional steel at high speed in oxygen-enriched atmosphere caused some ignitions. It is suggested that materials other than the aluminum-steel combination would minimize the hazard. (GRA)
- Research Organization:
- Bureau of Mines, Rolla, Mo. (USA). Rolla Metallurgy Research Center
- OSTI ID:
- 7198948
- Report Number(s):
- PB-240838; BM-RI-8005
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
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ELECTRIC DISCHARGES
ELECTRIC SPARKS
EXPLOSIONS
FLUIDS
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IRON BASE ALLOYS
IRON COMPOUNDS
IRON OXIDES
METHANE
MINES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
STEELS
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012000 -- Coal
Lignite
& Peat-- Mining
016000* -- Coal
Lignite
& Peat-- Health & Safety
090110 -- Hydrocarbon Fuels-- Properties-- (1979-1989)
10 SYNTHETIC FUELS
36 MATERIALS SCIENCE
360104 -- Metals & Alloys-- Physical Properties
ALKANES
ALLOYS
ALUMINIUM ALLOYS
CHALCOGENIDES
COAL MINES
CRYOGENIC FLUIDS
ELECTRIC DISCHARGES
ELECTRIC SPARKS
EXPLOSIONS
FLUIDS
HYDROCARBONS
IGNITION
IRON ALLOYS
IRON BASE ALLOYS
IRON COMPOUNDS
IRON OXIDES
METHANE
MINES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
STEELS
TRANSITION ELEMENT COMPOUNDS
UNDERGROUND EXPLOSIONS