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PSI Argon CO2 - WeldingWeb 1 For CO2, open the cylinder very slowly For argon-mixed gas, open cylinder valve slowly a fraction of a turn When the cylin- der pressure gauge pointer stops moving, open the valve fully 2 Set gas flow rate for 30 to 40 cubic feet per hour (14 to 18 L min) under normal conditions
why black soot using spoolmatic 30a, argon, on aluminum? I'm seeing black soot on both sides of the weld seam The equipment is an old Spoolmatic 30a, Trailblazer 250g, Argon with 030 x 5356 wire welding 1 8 inch 5086 aluminum I get the soot even when wire brushing the weld area carefully i This is driving me nuts Not amount of adjustments I've tried gets rid of the black soot
Argon vs Argon CO2 flowmeter? - WeldingWeb Argon has a molecular weight of 40 while CO2 has 44 The molecular weight is directly related to the density of the gas So 75% Argon and 25% CO2 mix has an average molecular weight of 41 That means that compared to pure argon, 75 25 mix is 2 5% more dense So about 2 5% is how much the flow meter will be off So no difference in real life
What do you set your regulator pressure at? - weldingweb. com To avoid this I turned the argon down to 35psi, it hardly creeps at all at that pressure, then did the same for the CO2 On a side note I noticed that the lower regulator pressure keeps pressure showing on the tank gauges for many hours longer when the valve is closed compared to before I reset the regulators to the lower pressure
MIG cover gas. . . argon and carbon dioxide mix If I used a traditional 75% argon mix I would be burning almost $20 a day worth of argon I am pretty sure CO2 is a lot cheaper than argon My 15lb CO2 bottle only costs $20 to fill, the argon bottle also costs about $20 also per fill and it only holds about 2 or 3 pounds of argon
Argon Bottle Question - weldingweb. com You can dunk the argon filled balloon in water and measure the displacement (and thus argon volume), then compare it to the calculated displacement of Flowrate x balloon fill time (seconds 3600 to convert fill time in seconds to hours) Obviously you have to fill it slowly and at a constant rate (as constant as possible)
Argon Contamination - WeldingWeb To get the best Argon one must be specific For instance Argon Cylinders Marked Grade 5 0 means a purity spec of 99 999998 or 5 nines after the decimal point This Argon should be in the less than 3 PPM range However your gonna pay $$ as the purity goes up due to extra filtration and tighter filling requirements Neat little H2o contraption lol