gas mapp

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CHINAREFRIGERANTHIGHTECHCO' gas mapp

CHINAREFRIGERANTHIGHTECHCO'

 
 
 

CHINAREFRIGERANTHIGHTECHCO'  Products

gas mapp
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gas mapp - May, 31 2010


Welding gas is a mixture of various hydrocarbons, principally, methylacetylene , propadiene and Propane(MAPP). It produces a relatively hot flame (2, 976 degrees) with a high heat release in the primary flame (inner cone) (15, 445kJ/m 3 ), less than for acetylene (18, 890kJm 3 ) but much higher than for propane (10, 433kJm 3 ). The secondary flame (outer cone) also gives off a high heat release, similar to propane and natural gas. The combination of a lower flame temperature, more distributed heat source and larger gas flows compared with acetylene results in a substantially slower pierce time.
Company Name : CHINAREFRIGERANTHIGHTECHCO'

 

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