I would also like to try my hand at some blades. Considering that, additives have been added to some quenchants for boosting the cooling process. Climate may make a difference too. (recycled oil saves energy) website,Used Motor Oil: A Problem with a Solution,......."While an automobile is running,the motor oil collects dirt,heavy metal(lead,cadmium,zinc and barium) and other things. Not worth the tiny amount of money saved vs. buying new canola, to have a less-than-ideal, carcinogen-laced quench. × Of course, you have many other good-quality types of steels that are not mentioned, but these are simply more friendly for a beginner to use. It makes one hell of a mess when it does, I cleared the shop for an hour on that one. It also smells a lot better than burning motor oil.
Display as a link instead, × No problems thus far... use what ya got..i have used motor oil but this years flavor is non foaming hyd oil it's about a 32 vis in it's cool state so i heat it to 130+- and have used it for 4-5 years but..i have it in a 3" cut off drive shaft so it's not alot of volume so a 5 gallon can will last a long time, How about atf mixed 4:1 with deisel to knock down the flash point.
I now use new oil in the tank and have far less problems.
Using proper quenching oil is more consistent than using automotive oils, with a higher flash point. I understand quenching oil is an actual compound.
AAA quenching oil is the most … Some commonly used vegetable oils are canola , olive , and palm kernel oil . For beginners, we would recommend starting with steels like 1080, 1084, 1095, 5160.
thanks the question though was does it matter if i use synthetic motor oil or does it have to be the "real oil" motor oil. Second, it speeds up wetting of steel to minimize the formation of unwanted soft spots which can lead to distortion and cracking. It can be new or used motor oil or some kind of cooking or vegetable oil. There is nothing magical about the two chemicals, nor its solution in water. to water or another suitable liquid, oil does not boil as quickly, so cooling
Anyway, end of subject. No I won’t mail it. All that smoke and fire coming out may seem unusual or even (2020). if you can find the new instruction you can make a batch of rob gunter's super quinch. As opposed Quenching carbon steels for hardening is a pretty complex issue in it’s most technical aspects.
Additionally it's probably very hard to get consistent results because of the of motor oil and it's varying viscosity at different temperatures. The type of quenchant you'll be using depends on the type of steel you're quenching. Many "special recipes" for quenchants have been used over the centuries; "Sources for the History of the Science of Steel" C.S.Smith, has a listing from the renaissance each one promising to make your steel harder and whiter---including radish juice, cockroach water, snail water, etc. Besides health issues, motor oil is not the right quench speed for blade steels, at least. If you use too little, the whole system will get too hot too quickly, therefore, your blade won’t be hardened enough. Lots of the heavy metals come from the bearings that wear in an engine.
Should be a bit over 4 gallons of quenchant. Upload or insert images from URL.
In general they break down to the basic Oil, Water, Brine categories---blood can be considered a weak brine for instance. First, it promotes the hardening of steel by regulating heat during quenching. Dad told me way back when I was a kid playing with grinding out knives from old files, " If it stinks and makes your eyes burn , then it probably isn't a good idea." The best bet is to heat the oil often and add some rosemary sprigs to it, and to change it out when it goes really bad. Use a metal can only and with a metal lid and have oil-dry and a fire extinguisher handy. or you can talk to your local oil supplier and see if the can still get chevron"s quinching oil last time i checked you could only get it in 55gal barrel. Been a couple at least. The men peed in a bucket and tools were quenched in neat urine.
Good information there, Mr. Brandt. After quenching, your blade is in a desired hardened state. Knowing that you could say the quenching is a balance between not going too fast and not going fast enough. In this case, oil provides 2 primary functions.
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Learn more about us. i have the reverse issue all my households cars us synthetic and i dont wanna go boom.
There are some peanut oils designed specifically for deep fat fryers, and they have additives to them to extend thier life and reduce foaming. All Rights reserved. I'm using a very similar set up to what you describe, tank bottom, one thing I did to make it "safer" was to build a wooden holder for it. I'm not planning on following the family tradition by the way! the process of cooling a heated metal by putting it mostly in some form of If you quench an air-hardenting steel piece in oil, it’s likely to crack. The guys who deliver heating oil can tell you who to call if they don't carry it. that it is recommended to normalize your steel before quenching.
Quenching Oil. There are many food-grade quenching oil options available to use for blacksmithing. A word of caution here: Don’t make the mistake of leaving the legs of your quench plate/table sticking out above the top of your quench tank, as this will prevent you from being able to use the tank lid to smother a flaming quench tank fire. We'll bring you the most relevant peer-to-peer conversations happening in the trade and tips and tricks to help you get the job done. Quench a water-hardening steel in oil and it’s likely to end up too soft. Can you add something to make it not go rancid? Urine is mostly water and dissolved urea and uric acid salts. trinculo, It is just all around better for you and the knife to use.
My shop smells like chicken ever time I quench. They can be purchased on-line, or directly from Wayne.
Some folks, like Thomas, don't seem to have much trouble with that, but it seems like many do. February 9, 2012 in Heat Treating, general discussion. Container size is of great importance for every blacksmith. Its literally the most cost free thing on this planet and is far less.... disgusting. behind that interesting process. know, motor oil has been used for quenching since the 19th century.
It is important to note that you should be using at least a gallon of oil for quenching. link to What Anvil Size is Good for Knife Making? It is liquid at this point and now is an oil. The plate is drilled with large and small holes until it is more holes than plate. I cannot remember how much it was but it was cheaper than motor oil.
My quench plate is a 1/4″ aluminum plate that is tapped at the corners for short all thread legs to adjust the plate to different depths to edge quench a blade to a given depth, and leave the back soft. You definitely do not want fumes from any of this stuff in your lungs or on your skin! Use a larger quench tank if possible so that your tools/blades do not over heat your whole tank past the flash point of your oil/oils/grease which is usually around 400-500 degrees F. For my goop quench I use a hot plate to warm it to 130-150 F. before use, then shut off the hot plate. Also, you can check is if are there any warps formed on your blade. So.......what is a good medium for quenching.
Frosty the Lucky. There are heavy carbon deposits which can be difficult to remove and a tendency for the oil to flash ignite quite readily
This website or its third-party tools process personal data (e.g. Check YouTube for ideas, or see "simplecentrifuge.com". And avoid using motor oil.
You would not want to quench and have a fire that would be extremely difficult to extinguish. It is just water, detergents, and salt, so it isn’t a hazardous material. Last thing you need is to drain the tank of heated oil because you dropped a small part. my question is does it have to be standard or does synthetic motor oil work just as well???? The nitrogen atoms, in urea and uric acid, readily formed volatile compounds, with the heat, to make a delightful pong. When using old used engine oil, the actual viscosity and from what use it came from is not always known, I find a clean new transmission fluid or flushing oil is succesful and can be used many times.