sell map pro

Description

Welding gas is a mixture of various hydrocarbons, principally, methylacetylene , propadiene and Propane(MAPP). It produces a relatively hot flame (2, **6°C) with a high heat release in the primary flame (inner cone) (*5, **5kJ/m 3 ), less than for acetylene (*8, **0kJm 3 ) but much higher than for propane (*0, **3kJm 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. Welding gas physical and chemical property: 1. Its diameter is *5mm, height **7 mm and gross weight **0g, convenient for holding and carrying. 2. The welding temperature can be reached ***0â?? and the burning temperature can be reached ***0â?? under condition of anaerobic combustion-supporting. 3. The burning time can be gottten 2hours and *0mins continuance under normal working circumstance. 4. It guarantees you good jointing and shorter working time because of its scientific blend proportion and favorable flame characteristic.