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Iron charge calculator1/2/2024 ![]() ![]() I’ve seen others built using a yield factor for each ingredient, but when I took over the role I didn’t have a solid historical dataset to calculate reasonable yields and the guys running the spectrometer already had a good idea where to aim in order to hit the aim. My charge aim is 13.5% to get me close in the furnace and in the furnace I aim for 13.25%, all to hopefully get 13% on my ladle button. Another good example would be Hadfield Manganese since elemental Mn is continually lost due to reactions with the refractory lining generating slag. I ran into a similar issue and ended up simply creating a new aim table specifically for charge (as well as in furnace aims which for me can be different from my final specs).įor example the carbon charge aim for ductile iron heats is a good bit higher than what I’m actually targeting from a metallurgical perspective simply due to carbon riser floating and inevitably getting partially slagged off. Calculate Net Ionic Equation Instructions Enter an equation of an ionic chemical equation and press the Balance button. They were often a pain in the ass and did not want to listen but they taught me a lot. Net Ionic Equation Calculator Enter an ionic equation (solubility states are optional) to calculate its complete and net ionic equations. I had some good old melters help me get started. Unfortunately it is more about experience and minor modifications to your process as you gain that experience. It kept track of their inventory and would calculate the additions from the spectrometer readings, but that was 20+ years ago and I don't remember what spectrometer they were using, it was not a spectro and I don't think it was a Leco. I worked with one foundry that used a "Keystone" program that was connected to their spectrometer. I am assuming that you are talking about induction melting. Mn and Cr we would add after we had a bath otherwise we would lose a lot to the slag. Ni and Mo we could add at the beginning of a charge and we would get good recovery. Your recovery will be dependent on the melt practice and how it is added. ![]() It is much easier to add Ni than to dilute it out. I had one that I made that would get close but I always erred on the side of low. It is tough to come up with a spreadsheet that would work for any foundry. ![]()
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