bluing steel with a torch bluing steel with a torch

The parts can often be put together with little or no forces need and friction lock together and the one parts shrinks and the other part expands. I have cut and polished 4 pieces of mild steel to demonstrate different colour stages. How to remove discoloration from heat? - Forums - Miller Welding To heat this, I use a Coleman camp stove and a 15# jug of LPG gas. "keywords": ["how to blue stainless steel"], Blue Bluing Steel I ended up with some spots where the browning did not take, and a few dull spots, most of which I was able to buff out with steel wool soaked with gun oil. Woodworkers doing furniture finishing will use 000 and 0000 wool, and they hate oil on their wool for rubbing down oil finishes. Cold blueing is OK for touchups, at best. These include hot bluing, cold bluing, niter bluing, and so on. The "turning blue" process has nothing to do with hardening of the steel, or its compression. Posted December 21, 2009. I wish this article had come out sooner, since I did not know that 0000 steel wool may have oil in it. Cold blueing solutions usually just dont wear well. I want to add rainbow color to safety razor blades that would be used again, how can I do this? Color case hardening is the predecessor of all metal coloring typically employed in the firearms industry. 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. Best Gun Bluing Save my name, email, and website in this browser for the next time I comment. When putting water in your boil-out tank, use distilled water if you have water with high mineral content. 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. Most knives, rifle receivers and barrels are heated to at least 1200F and cooled and drawn at 490F-700F. Historically, razor blades were often blued steel. Excessive buffing on stainless steel could result in a grainy appearance so do it with care. Dont drop or try to bend the steel once its removed. I have in the past few years became more and more. on Introduction. Be patient in the first few minutes as the metal needs to reach the temperatures where it changes colour! Brownells has steel tanks, and there are some steel/stainless long/thin tanks available from other sources. 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. Also thanks DG! Theres a reason why I buy up clapped-out guns and stuff where people look at me with a WTF?! For larger pieces of steel, you need to use a. On this Wikipedia the language links are at the top of the page across from the article title. I guess Ill have to just be happy drying toilet paper. These processes were later abandoned by major firearm manufacturers as it often took parts days to finish completely, and was very labor-intensive. 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. It costs an arm and a leg, and you can buy 0000 so cheaply at Wally World that it makes the acetone method worth your while. I now want to reverse the process so I can drill and tap the metal tip. Theres a reason I didnt pursue a career in chemistry. It will first turn gold, then orange, then red, purple, blue and then dark grey! They should send you a stipend for your time. Ive dealt with strong acids and strong bases in lab work, and I fear the strong bases more. You risk a big fire that is self sustaining by the reaction itself. Torch At the end of this heating process the crucible is removed from the oven and positioned over a bath of water with air forced through a perforated coil in the bottom of the bath. Ive cut and pasted this to my notes on the cloud. Similarly, stainless steel parts may be immersed in a mixture of nitrates and chromates, similarly heated. Add in the 250F+ temperatures of the salts when they hit your skin, and youre both burned thermally and chemically in seconds. "sameAs": Think big scars. 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?). I can keep a Krylon can always handy for touch-ups. 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. This is not advisable. Youll have a hot caustic degreaser tank (about 10 minutes), then a cold rinse tank, then into the hot salts for, oh, 15 to 20 minutes, then out into the hot rinse, then into a cold running rinse tank, then into a water displacing oil tank for 20 minutes or so. BUT like so many power tools on guns, it is possible to create expensive screw-ups to fix on guns with power tools, and buffing wheels are no exception. I can then get the temp to be 600F spot-on in a lead melting pot. Even with safety glasses and a full-face shield, a rubber apron, rubber boots, etc it is possible to get salts into your eyes and all over the rest of you. 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). In literally 10 seconds on a buffing wheel incorrectly applied, I could screw that up to a point where it might take be eight+ hours of hand polishing to recover my prior results. It is hazardous. The ideal setup is a pair of long sleeve gloves along with splash goggles and a face mask. wikiHow marks an article as reader-approved once it receives enough positive feedback. Just dont do it. Dont mess with hot salts. Its a pretty straightforward process. Colour case hardening occurs when soft steels were packed in a reasonably airtight crucible in a mixture of charred leather, bone charcoal and wood charcoal. Treating with an oiled coating enhances the protection offered by the bluing. Then you pull it out and scrape off the oil along the blade edge. Then you have to heat the metal. The melting point for KNO3 is 633F. Safety is the number one priority so protect your body as much as possible. How to Colour Steel With HEAT : 5 Steps (with Pictures) How to Harden Steel: 10 Steps (with Pictures) - wikiHow And I work alone in my shop, and lack the required (IMO) safety facilities that are needed. Bluing - Finishes for Metal - I Forge Iron The name of the process actually comes from the blue-black appearance of the black iron oxide. However, due to the unique qualities of stainless steel, you cant simply blue the material however way you like. 35% Potassium nitrate (aka saltpeter), http://castboolits.gunloads.com/archive/index.php/t-36054.html. My advice to people here: Unless youre a professional, and youre working in a shop with all the required safety gear (a cold water shower within a couple feet of the tanks, and an eyewash station next to the tanks, and someone working in the same shop every moment youre working on the salt tanks), DONT. Cold bluing is not particularly resistant to holster wear, nor does it provide a large degree of rust resistance. They are still sometimes used by gunsmiths to obtain an authentic finish for a period gun of the time that rust bluing was in vogue, analogous to the use of browning on earlier representative firearm replicas. All those materials the leather and bone the coal where sources of carbon and other trace elements. Accidental exposure to the chemicals could result in serious injuries. Take them out after a couple of minutes and then wipe them clean to remove excess oil. Pour in The steel will pull some of the carbon out of the oil while quenching and harden the outer portion of the metal. JUST DONT. Bluing is a passivation process in which steel is partially protected against rust using a black oxide coating. By using our site, you agree to our. on Introduction, Hello my name is Joe and Im doing a project where Im trying to achieve the same outcome. It cannot rust any further. Rinse them in a cold water tank after. Most cold blueing agents contain some selenium dioxide in them to enable to them to react at room temps. Dont pour water in to your bath! Hunter holds a BFA in Entertainment Design from the University of Wisconsin - Stout and a Minor in English Writing. Isn't the point of the acetone to degrease, why would i grease? Learn more Steel is a common durable alloy, and while most steel used in tools is already tough, you can harden it even more to prevent wear and tear. It is usually inadvisable to use cold bluing as a touch-up where friction is present. 2 years ago, For the record The gentleman said multiple times that the plastic container shown in the pictures was just for the instructional photos and to be sure that the container is made of metal for this process, (Homer Simpson smacking his forehead: "DOH! 8 years ago FigureLLC. Sorry for the misunderstanding. Reply It also looks good on AK type weapons of which I have three to park. My apologies for the background noise in the first half of the video We had compressors running where I RF: Expect a write-up from me on Rust blueing and parkerizing in the next couple of weeks. By using this service, some information may be shared with YouTube. Once you see it turn golden, the process has started and colours will change fairly quickly! Thanks for the lesson, DG. This item: Special Blue Full Metal Butane Torch (Gold) - Refillable Flame Lighter- Culinary Torch - Welding Torch - Adjustable Dual Flame for Desserts, Creme Brulee, BBQ and Baking. They melt at, oh, somewhere about 280F. Bluing is often a hobbyist endeavor, and there are many methods of bluing, and continuing debates about the relative efficacy of each method. "logo": { {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/8\/81\/Harden-Steel-Step-1-Version-3.jpg\/v4-460px-Harden-Steel-Step-1-Version-3.jpg","bigUrl":"\/images\/thumb\/8\/81\/Harden-Steel-Step-1-Version-3.jpg\/aid1214287-v4-728px-Harden-Steel-Step-1-Version-3.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"