bluing steel with a torch

Have proper ventilation and use proper modern safety gear! However, if the bluing effect isnt satisfactory, then you can try giving the components an acid bath (using Hydrochloric Acid). Did you make this project? THANKS DG. It does provide good rust resistance, which is improved with oil. The reason why blued guns rust is that something was allowed to attack the surface blueing and get through it to new steel or the blueing job wasnt deep enough to complete passivate the surface from red rust. Red rust is Fe2O3, and is incomplete rust it will continue allowing the surface to corrode over time hence the oil or wax. It is always essential to remove all oils from metals you want to blue, even if the cold blueing solution claims you dont need to do so. . Hot bluing should never be attempted on aluminium, as it reacts it usually dissolves in the caustic salt bath. Fill the tank with a suitable amount of water then add in the bluing salt using the correct ratio. Bluing is often a hobbyist endeavor, and there are many methods of bluing, and continuing debates about the relative efficacy of each method. For modern uses of black oxide, see, Learn how and when to remove these template messages, Learn how and when to remove this template message, "How To Remove Rust From A Gun Without Damaging Bluing? Dont mess with hot salts. Get it Feb 25 - 27. - Ballachy", "Bluing of Steel by Heat Treatment: Why and How it Happens? "@context": "http://schema.org/", 1/16-inch pivot wire has a circumference of ~0.2in. It repeats the process adn by the time the head moves on to the next station all the parts are seated presumably for the life of the head. Its much cheaper anyways. To shrink, I assumed you heated the steel plate only, to expand the hole in it. Hot. OK, Buffing wheels, which Im making their own break-out response from the blueing salt issue: Buffing wheels are useful things in a gun shop. Dont want to get any of the liquid on you its 700F. Every true outdoorsmans dream! With. Wait for a day to let the bluing properly cure before you do anything else to it. Browning a gun gives you a nice, even brown patina finish of red rust on a gun. There wasnt a whole lot of pain just yet until my buddy took the safety bottle of vinegar solution used to neutralize the alkaline NaOH salts, and then the pain was there. The part that is to race the other is heated normally up to about 220 especially if it is an aluminum casting like a cylinder head. It is named after the blue-black appearance of the resulting protective finish. Thanks for the lesson, DG. fascinated with blacksmithing, but have not had an income to even get it started. Vegetable oil has a higher boiling point, so the hot steel will take longer to cool and reduce the chance of it cracking. The reason I ask is that when you heat steel that is in the white to 600F, you get a brilliant blue all on its own. To remove them, you put the action/barrel into a sturdy vise (padded with soft jaws) and you use a piece of brass rod to drift the sights out. I can keep a Krylon can always handy for touch-ups. He started the site to explore the ethics, morality, business, politics, culture, technology, practice, strategy, dangers and fun of guns. With HSS you're looking for 2500-3000rpm, M35 or M42 cobalt bits 3000-3600rpm, and carbide 10k-12krpm. The difference is immersion in boiling water for bluing. Mark the sharpened edge with a crayon. Youre a gunsmith who has a lot of nice guns! "Rust bluing" and "fume bluing" provide the best rust and corrosion resistance as the process continually converts any metal that is capable of rusting into magnetite (Fe3O4). I tried heating the barrel in sections (as Brownells says is ok) but did not get a very good result, being unable to get a uniform heat in any =thing approaching more than a few inches at a time. "url": "https://shootingmystery.com/wp-content/uploads/2021/01/How-to-Blue-Stainless-Steel-in-5-Easy-Steps.jpg" Ill be saving this for the future. I now want to reverse the process so I can drill and tap the metal tip. By signing up you are agreeing to receive emails according to our privacy policy. Should something happen, seek medical help right away. In this case cooking oil, rather than gun oil, acts to displace water and prevent rust. { Similarly, stainless steel parts may be immersed in a mixture of nitrates and chromates, similarly heated. Enjoy! Once you strip the blue & rust, then you can see what youre dealing with. Apply heat to your object and heat up gently and equally. Keep heating the steel until you notice a blue color form on the metal. I can then get the temp to be 600F spot-on in a lead melting pot. gas coverage is another big one. This method must not be used on critically heat-treated parts such as receivers, slides or springs. Ive gotten hot blue salts on me splashed into my hair. NaOH is nasty stuff. Pour in The blueing salt bath will be at about 286 to 292F, and as it is bubbling away, it is losing water, and the boiling point of the solution keeps climbing. Not blessed with a climate controlled safe. Still, you will find that cold blues dont last. ALL RIGHTS RESERVED. Safety is the number one priority so protect your body as much as possible. Very helpful! 1. It will first turn gold, then orange, then red, purple, blue and then dark grey! That means 50-60 revolutions to make a foot. The thickness of the oxide is a function of how hot you heat the steel (The color is due to interference of light reflecting from the surface of the oxide coating, and light reflecting from the oxide-steel interface). Heres instructions from Mark Lee Supplies on using their Express Blue #1. Being prepared is important if you can not measure the temp. Any more advice is welcome SteelJunkee Joined May 6, 2018 Messages 891 The tank of distilled water you heat with a camp stove, the kitchen stove (Im not responsible for marital discord and disruptions of conjugal relations) or some other much larger heat source to a boil. However, the chemicals from the bluing process can accomplish uneven staining on aluminium and polymer parts. Bluing The downsides are: the safety issue, which I laid out above, and which youve made clear. While the rod may heat some by conduction, it wouldn't get hot enough to start the color-forming process. "name": "Shooting Mystery", Many double-barreled shotguns are soft soldered (lead) or silver brazed together and many of the parts are attached by that method also. Mess. You are a fantastic resource for all of us here. There are many simple ways to achieve good bluing. As I'm bluing round pieces I slowly and evenly rotate the piece over the flame to equally disburse the heat. I can see my wife walking in and shaking her headabout as vigorously as when I asked if I could use the dishwasher to clean some tools. Again, dont mess around with these chemicals and only handle them with extreme attention. DG thank you. This is one of the reasons rust and fume bluing are generally more rust-resistant than other methods. Blue or Black rust is complete passivation of the steel surface Fe3O4. Picture Information. Were committed to providing the world with free how-to resources, and even $1 helps us in our mission. Acetone is also useful for de-greasing the barreled action. Why do you bother with all this crap?. This will keep the bluing from adhering to the sharpened edge. When polishing something like the above rifle/shotgun, youve got a pretty light coat of rust, without severe pitting. Your container should be relatively larger than your object. Various processes are used for the oxidizing process. Ventilation is important. Wear thick gloves so you dont burn yourself. Prepare the components of the metal surface before you attempt to blue using your tools. Work on a metal or steel surface, such as an anvil, to avoid any fire hazards. Brilliant blues. By the time I was done it looked like it was a beat up 5 year old gun rather than a 1930s bolt .22 that came from a scrap yard. "publisher": { Old school smiths use something called washing soda to strip oil off guns. In the automotive world this is a common practice. Heating will make the metal better in absorbing the bluing liquid. Then you can express blue it with a propane torch and a tank of boiling water. If the sights need to be stripped & blued, follow the same procedure, but dont polish on them. Bluing is a process usually used by gun owners and firearms manufacturers to improve the aesthetic value of their weapons. "@type": "ImageObject", I use kerosene to wet my paper from 500 on up. Bluing only works on steel, cast iron, or stainless steel parts for protecting against corrosion because it changes iron into Fe3O4; it does not work on non-ferrous material. Make sure the piece is chemically clean, sandblasting followed by power wire brushing is good then stop heating when you hit purple because the heat will travel. You should keep guns in a safe, if you can. Question Ill detail why. Central Texas. Hardening will cause it to be more brittle, which could cause the hammer to chip and cause injury. Here is a simple way to get a blued finish on steel. -A heat source. The easier of the two methods, hot bluing only requires some degreasing agent, a heating apparatus (a blow torch is perfect for this), and any kind of oil. Ill wait for and look forward to your article! It's easy to get it too hot, too quickly - especially with an O/A or oxy-propane torch. Reply I saw you reference a coleman stove and propane tank for heating solution. It is always essential to remove all oils from metals you want to blue, even if the cold blueing solution claims you dont need to do so. How to Harden Steel: 10 Steps (with Pictures) - wikiHow 1. You will need:-2x containers (one of them preferably being metal for the oil)-oil -unleaded petrol/Acetone/Terpentine/Rubbing alcohol or any goo to blue / heat anodize stainless steel Its the corrosive gift that just keeps on giving. Add the two together and you have what is akin to rocket fuel in your face a way of oxidizing almost any organic material with insufficient water for cooling into a furious flame. Large scale industrial hot bluing is often performed using a bluing furnace. This article was very, "I've been working with steel since I was a child, and reviewing these proper methods and skills makes my projects, "It surely educated me on several points. This answer was tested with a utility knife blade and it drilled through with ease. Now you slide the cold rod in, and the plate cools, gripping the rod. This is not necessary as long as you can hold your item appropriately and not cover where it is to be heated. Cold blues will react with steel at room temperature, but you get more aggressive reactions when you heat the gun to, oh, 150 to 200F. $3.59. I didnt drop outta my mommas womb being able to do this stuff. Its a good process for processing lots of guns, but I simply cannot recommend it for people who just want to do a gun here or a gun there.. on Introduction. In the nitre bluing process, polished and cleaned steel parts are immersed in a bath of molten saltstypically potassium nitrate and sodium nitrate (sometimes with 9.4 grams (0.33oz) of manganese dioxide per pound of total nitrate). Can a softly tempered piece be re-tempered harder without going through the hardening procedure again? FigureLLC. Although the steel parts, such as anOrdains watch hands, are near enough miniscule, each Though it may seem tricky at first, youll be glad to have figured it out because knowing how to blue stainless steel will come in handy from time to time. Soft, low-carbon steel was used, but strong materials were needed for the receivers of firearms. Thank you all who had a part in the production of this important information! Usually they would pack the parts in crucibles and surround them with leather, wood, coal,bone etcThey would heat them up to 1200F to 1500F and hold them at this temp. My first time wasnt a stunning success. It is a difficult product to apply evenly, offers minimal protection and is generally best used for small fast repair jobs and touch-ups.[2][3]. Step 3: Suspend the components in the bluing solution tank, However, if the bluing effect isnt satisfactory, then you can try giving the components an acid bath (using, Step 4: Rinse the components in a cold water tank then transfer them to a hot one, Step 5: Submerge the components in a tank filled with water displacing oil, Address: 4455 Camp Bowie Blvd, Ste 114 #852, Fort Worth, TX 76107. Higher carbon contents will take longer to heat. A non-linear resistance property of the blued steel of razor blades, foreshadowing the same property later discovered in semiconductor diode junctions, along with the ready availability of blued steel razor blades, led to the use of razor blades as a detector in crystal set AM radios that were built by servicemen (as foxhole radios) or by prisoners of war during World War II.[8]. The loose oxide was then carded (scrubbed) off, using a carding brush - a wire brush with soft, thin (usually about 0.002in (0.051mm) thick) wires - or wheel. Haha. Wipe them down with WD-40 on a regular basis. Drill bits and gun barrels are common examples. "https://www.reddit.com/user/theshootingmystery" You can reassemble the gun after. How to Hot Blue Steel with a Torch- A Step-by-Step Guide When everything is set up, put on your protective gear and then get down to business. These processes were later abandoned by major firearm manufacturers as it often took parts days to finish completely, and was very labor-intensive. For the chemical, the bluing solution should be either Oxynate No. Depending on what solution you use, the tank temperature must be maintained somewhere between 240 and 310 degrees Fahrenheit. You can use a heat gun, a blow dryer, or a torch for this. You have a degreased gun, and now you need to get the metal hot enough that the reaction will oxidize the steel as much as possible. When youre using polishing paper, you think that 600 grit is very fine, and it is taking you hours to polish out something to 600. 4 years ago It was left in a flannel gun case in the back of a moist closet for 25+ years. ", the wrong quality steel. I wouldnt use this bluing method for these items. It is caused by a layer of oxide that forms when the steel is heated. Ferrari installs valve seats in their aluminum cylinder heads via robot. Hopefully these concepts suggest caution and diligence for what you are doing. Aluminium (Al) and polymer parts cannot be blued, and no corrosion protection is provided. journeyman. "image": { Think big scars. 8 years ago 3 years ago I rarely use them. High temperatures and dangerous chemicals mean that a moment of carelessness can make you pay a heavy price. So unless you have sufficient equipment and skill, its advised to let a professional perform the bluing for you. Fortunately, this is easily had at any hardware store: WD-40 is a water displacing product, not a lubricant (contrary to widespread advertising). I have done a cold blue on a very rusted .22 for a friend. I wore latex gloves, as Brownells recommended, but used a pot holder to handle the hot barrel, and that may have been the source. You might need two applications to clean up more deeply rusted spots. Free shipping. Dont drop or try to bend the steel once its removed. Oil binds with the metal and prevent it from getting air/chemicals to corrode. wikiHow marks an article as reader-approved once it receives enough positive feedback. }, YouTube - Nitre bluing a few gun parts. No. I found through my bluing adventure that different oils do act slighty different but ultimately everything I've used has done the job. the cost of all the tanks you need for rinse & boil-out 4.3 out of 5 stars 242 ratings-30% $12.99 $ 12. When you add water to a hot salt tank, you get an explosion of steam, and you need to develop some skill in adding the water with a very fine copper pipe on your water hose to prevent steam blow-outs spattering salts all over you. Now securely hold your piece with whatever you have chosen. "https://www.pinterest.com/theshootingmystery/", It is generally employed on smaller parts such as pins, screws, sights, etc. ", On another thread, we can go into nitre blueing, which is basically heating pins/screws/bits/bobs to 600F in a molten salt bath. The robot gives the steel valve seat a quick blast with liquid nitrogen and drops the seat right in place. Shooting Mystery is an independent website that provides content for informational purposes only. It greatly helped me to learn how to blue a gun perfectly at home. Both refer to the same chemical process for providing true gun bluing.[1]. For more information on using a blowtorch and protecting the steel, scroll down! By using our site, you agree to our. This is as deadly as the lye-based hot salts, but more for the temperature of a large batch of salts. It is hazardous. Heat the gun parts. You can make a Caustic Soda KNO3 water bath: 65% Lye (aka sodium hydroxide) Gun companies dont/wont do it because they want to make quick money, and today its all phosphates and bake-on appliance paint (you didnt think a guy who calls Glocks cheez-whiz was going to sing the praises of Duracote or Cerakote, did you?). Bluing is a passivation process in which steel is partially protected against rust using a black oxide coating. I don't understand why you are submerging it in oil? . WHERE or when would the torch get used? 3D Printed Futuristic Space Age Wall Clock. Thoroughly degrease the area to be reblued with acetone. Above you can see some example pictures of the colour shades that can be achieved with this techniques. 2. How to Colour Steel With HEAT : 5 Steps (with Pictures) For this reason, it is considered not to add any appreciable thickness to precisely-machined gun parts. It provides the stainless steel surface with a layer of protection, giving rust and corrosion resistance while reducing potential glare as well. Just dont do it. Then you sight down the barrel and you see dips and waves in the barrel profile. Dont. They should send you a stipend for your time. You turn up your nose at crap guns? After That seems wasteful. The object on the left is a custom mild steel potentiometer knob! on Introduction, looks nice but you are using what is known as heat treatment which will darken steel, not using bluing salts as in gun bluing of rifle barrels all in all very nice instructable, Reply Frequent TTAG commenter Dyspeptic Gunsmith saw the gun above in our postA Garden Gun Cultivates a Newfound Fascinationand answered reader questions about blueing/reblueing a gun thusly: If the rust is very fine and there is still substantial blueing left on the gun, you might want to strip the blueing. You then oil or wax over the finish when youre done. Either that or the steel wool. "@type": "Article", I dont have that much blueing to do in my shop, so I dont use hot salts. Oxides come after its been heated to a red heat and cooled. Quenched steel is harder, but it becomes more brittle. The wire is extremely small in diameter, so you have to take that into consideration. The use of stainless steel alloy varies a lot from one manufacturer to the other and thats why the bluing effect wont always be consistent. There can be different layers you have to apply. Thermometers and stirring tools are also needed, as well as something to heat up the tanks. All About Bluing Steel Stainless Steel Necessary Gears and Tools Procedure Step 1: Ready the bluing tank Step 2: Process the components of the gun Step 3: Suspend The hot washing soda tank typically used in gunsmith shops is caustic washing soda, and if you leave the gun in long enough, youll start to see corrosion on the gun before you get to the blueing step. Then, use a pair of tongs to carry the steel to a container filled with water or vegetable, and submerge the hot metal in the liquid.

Never A Time The Perrys Chords, Westfield Carousel Staff Parking Registration, Michigan Federal Judge, Hth 3 Inch Chlorine Tablets 50 Lbs, Articles B