Re: My muller build
Posted: Thu Jul 28, 2011 11:54 am
your right it does have quite a smearing action going on when its running, I will have to empty it out some so that the track behind the wheel is visible. I'm sorry that I took such a tearible video I know that there wasn't a lot of action to it, but figured that you would be able to translate what the machine was doing.
I was trying to figure up the other day how much I have in it in buying parts, purchasing metal, my time on machine tools making parts, my time fitting and welding. I figure that if you put 750 on it I would break even. The actual work wasn't too bad except for the fact that I was out in the sun no shade till late in the afternoon made for a miserable time building.
I was of the mind when I was using just greensand that you didn't really need a muller, after running my greensand thru this the one or two times that I did cast with it, totally changed my mind. I know that 5 gallons is a lot but I don't know about in Onyx but here when its hot everthing evaporates, it may not evaporate very fast from the tube but it will, I throwed in a shot last night to some that I had mixed with wet sand, had a bad texture to it, was really sticky like syurp had been poured in it. I put in want would run through am IV line in a minute and let the machine run for a spell and you could litterly see the change in the texture of the sand.
I have been doing some hunting trying to locate products that are local to oklahoma so I won't have to pay shipping (well I will it just won't be listed as shipping but as and increase of the price of what I am using). I found out by reading that paper I qouted last night that you can also use Methyal Hydrate as a catilyst instead of propalyene carbonate which is from what I have found quite expensive. The oil that I have used up to date has been O'Rielley's ND 30 an 10 weight oil, hopefully after conversation that I had yesterday with a man at a Oil distrubitor I will find out what I can use that is as close as I can get to what they used in the k-bond mix.
I'm going to lucnh, I been working on this damn computer all morning it seems like I had to replace its motherboard to get it back up and running. I will try for some video this evening, hopefully I can hire someone to stand around and act like a foundry man, otherwise I'll have to do it.
One last thought, Leon dude I know plays with 440 three pahse, he's used Petrobond for several years now or anyway for the two years that I have known him. His sand is black as the inside of ole Ab Lincoln's top hat, I don't think that he throws any of the burnt away, if I was having to mull it by hand I would thro it away but so far what I have casted all has went back in the tub. if your casting hard you can loose over a bag a day of sand, I'm not saying that there won't be times that you won't throw it away, say you do an iron pour and the sand turns to glass or binds up on the part hard enough that you have to use a grinder to get it off, I wouldn't want that back in my heap.
Wish that they made half barrels one same diameter as a 55 but only half that high with a lid.
David.
I was trying to figure up the other day how much I have in it in buying parts, purchasing metal, my time on machine tools making parts, my time fitting and welding. I figure that if you put 750 on it I would break even. The actual work wasn't too bad except for the fact that I was out in the sun no shade till late in the afternoon made for a miserable time building.
I was of the mind when I was using just greensand that you didn't really need a muller, after running my greensand thru this the one or two times that I did cast with it, totally changed my mind. I know that 5 gallons is a lot but I don't know about in Onyx but here when its hot everthing evaporates, it may not evaporate very fast from the tube but it will, I throwed in a shot last night to some that I had mixed with wet sand, had a bad texture to it, was really sticky like syurp had been poured in it. I put in want would run through am IV line in a minute and let the machine run for a spell and you could litterly see the change in the texture of the sand.
I have been doing some hunting trying to locate products that are local to oklahoma so I won't have to pay shipping (well I will it just won't be listed as shipping but as and increase of the price of what I am using). I found out by reading that paper I qouted last night that you can also use Methyal Hydrate as a catilyst instead of propalyene carbonate which is from what I have found quite expensive. The oil that I have used up to date has been O'Rielley's ND 30 an 10 weight oil, hopefully after conversation that I had yesterday with a man at a Oil distrubitor I will find out what I can use that is as close as I can get to what they used in the k-bond mix.
I'm going to lucnh, I been working on this damn computer all morning it seems like I had to replace its motherboard to get it back up and running. I will try for some video this evening, hopefully I can hire someone to stand around and act like a foundry man, otherwise I'll have to do it.
One last thought, Leon dude I know plays with 440 three pahse, he's used Petrobond for several years now or anyway for the two years that I have known him. His sand is black as the inside of ole Ab Lincoln's top hat, I don't think that he throws any of the burnt away, if I was having to mull it by hand I would thro it away but so far what I have casted all has went back in the tub. if your casting hard you can loose over a bag a day of sand, I'm not saying that there won't be times that you won't throw it away, say you do an iron pour and the sand turns to glass or binds up on the part hard enough that you have to use a grinder to get it off, I wouldn't want that back in my heap.
Wish that they made half barrels one same diameter as a 55 but only half that high with a lid.
David.