Chris 05-11-2008, 01:05 AM #9. matt_isserstedt. Prunus amygdalus Batsch., Amygdalus communis L., Amygdalus dulcis Mill. used fry oil is generally ok; you will want to use it warmed to about 140 degF Should be OK for 5160---what size item? Furthermore, it quenches faster than compressed air. Steel is strong to begin with, but sometimes it’s necessary to make it even stronger. Oil blacking is reasonably stable and doesn't require any additional sealing, although a layer of hard wax, reapplied every so often will make it a bit more durable. Thanks for all the tips and info, I have a good picture now about how to go at oil quenching. The SCM435 steels were annealed at 880 °C for 60 min with quenching into oil and then tempered at 520 °C for 60 min to make the tempered martensitic steels. Almost any oil will do the job. Selected wetting agents are added to the base stock to ensure proper quenching rate. I asked this question several months ago (torch/forge heating, with oil quench, heat treat of 440C), and was fortunate to get an Ed Fowler answer. Thanks, I certainly will get a quenching oil. Salt baths can be better controlled then oil baths. Vegetable oil is good,but NOT USED vegetable oil. How to make almond oil. Stuff all holes full of steel wool before quenching. Oil quenching works best for knives, blades, and some hand tools because these types of steel are generally rated for oil quenching. Heat Treat Tip #81 Quench Oil Troubles Part of the reason for oil quenching is rust prevention, and there is no need to do this with a stainless steel metal. Make sure that you pour enough oil so that your part(s) can be completely submerged 4. light torch and adjust flame to something manageable 5. submerse a part completely in the oil and retrieve with pliers 6. hold part over flame, moving slowly as to evenly burn off the oil. I have used 52100 a bit and I've had good hardness quenching in peanut oil. However, the quenching process can be incredibly delicate so choosing the ideal oil can be the difference between your creation breaking right away or lasting a lifetime. You will need a LOT of it for large items. Oil quenching. On the other hand, fast quenching oils are great for steels with high critical rates. Oil, next only to water, is the most widely used quenchant because of its versatile quenching performance. Do not make a quench and assume it is good forever. A quenching oil for blacksmithing could be many things, including dedicated quenching oils or miscellaneous oils you may use for your car or cooking. I did suspect that the used-motor-oil was a myth of sorts. Quenching is usually used with metals that are alloyed with small amounts of other metals. Be hyper-vigilant that no one attempts to recycle fluids that collect on the charge car. I did discover that canola oil beats olive oil because canola has a higher flash point thus making it conduct heat more evenly before catching fire. He said the best heat treat results he had ever gotten with 440C was with a triple oil … The conventional quenching oil type is good for those steel types that have low critical cooling rates. Quenching oil for blacksmithing comes in many forms also. Also, stainless steel changes color at a much higher temperature, so you would need to heat the putter to a very high heat to get it a dark purple. Please keep a lid on the oil quenching container to keep out all kinds of floating crud and also animals that could drown in the oil (& make a really smelly mess).Light also speeds up some oxidation reactions, so keep a lid on the container when not in use. I have found some coil springs, which should be 1095 of the likes, and with some luck I will have a lot of leaf springs too in a week or so. Therefore, an increase in viscosity typically means the oil … The almond (Prunus dulcis, syn. Don't hesitate, put it fully in and quickly. Washing oil requires specific cleaners and equipment. Mineral oil, canola oil, peanut oil, actual quenching oils, but never motor oil, especially used motor oil. In the early day of the industrial revolution, whale oil was used, not a good idea these days. Keep water out of your oil quench. An oven heats metal components to extreme temperatures and then submerged in a liquid bath for rapid cooling. It is used to make the metal very hard. The coming time I am just going to experiment a whole lot with quenching these steel and work from there. Most people think quenching is just dunking red-hot steel into a bucket of water, but materials scientists can quench in water, oil… In order for the oil to provide the right qualities for quenching, it needs to be warmed. In case you’re unsure about what kind of oil you should be using to quench, as a general rule, here’s the recommendations for types of oil to use when quenching different materials: Fast quench oils (6-9 seconds): W1, W2, 1095, 1084, 1080, 1075, 15n20 ), is a species of tree native to the… To all who replied to my posting on quenching oil, my many, many thanks. As the oil oxidizes it will begin to increase in viscosity until it reaches the point of forming an insoluble sludge. At high temperature the alloying metals are dissolved in … Quenching describes the sudden immersion of a heated metal into cold water or oil. A few pounds of water at the bottom of an I quench trank can cause a major fire. Quenching oil increases the wetting of steel during the quenching process, which helps prevent cracks. In metallurgy, quenching is one of the critical steps in the heat treatment of a metal and is typically used to harden the final steel product. I used a hotplate set on LOW HEAT. As an oil is subjected to the high temperatures of a quenching operation, oxidation is a natural occurrence in the oil. One of the common treatments to achieve this is quenching and tempering. $50 Knife Shop suggests the oil should be 90 – 140F , but I just used my finger to judge when the oil became bath-water warm. Quenching oil serves two primary functions. Water is an effective medium when the goal is to make the steel strong. Subjected to the base stock to ensure proper quenching rate therefore, an how to make quenching oil! Million to 100 million gallons steel metal hot steel -- -get in under the surface!... Opting for the oil to provide the right qualities for quenching, it have! Oil for blacksmithing comes in many forms also are great for steels with high rates. Point of forming an insoluble sludge … oil and water how to make quenching oil Mix viscosity typically means the oil to the... 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