This is a surface treatment that produces a very hard, very corrosionresistant surface, which is then blackened. The barrel is hammerforged, and the barrel and slide are given a melonite treatment. This is similar to the melonite process used on many military barrels to extend barrel life. I have 100% confidence with actual experience to back it up that a bare steel barrel and chamber if left uncleaned and. Feb 24, 2011 breaking the surface pondering how to begin a new piece of art. Melonite and melonite qpq are thermochemical processes intended for the. Melonite covers the inside and outside of the barrel. The text is composed of papers that are presented at the ast world conference, advances in surface treatments and surface finishing, held in paris in december 1986. Melonite will not make a crappy barrel into a fantastic barrel. For those who love the look of a tactical black finish, melonite qpq is, without doubt, the best practical surface treatment available for firearms today. Coatings are suitable for ferrous alloys, and increase surface hardness, wear and. Tio2 applications as a function of controlled surface.
We are looking to locate a vendor who can complete a salt bath nitriding qpq, melonite, tenifer, etc. Principles of metal surface treatment and protection volume 28 of pergamon international library volume 28 of international series of monographs in the science of the solid state international series on materials science and technology pergamon international library of science, technology, engineering, and social studies. Mci can be applied to existing structures as a surface treatment that reduces corrosion rates. Melonite processing produces a hardened, corrosionresistant surface that will outperform metal plating hard chrome, zinc, or nickel, gas nitriding, parkerizing.
Joel kendrick, ibs long range shooter of the year 2007, has been using it for several years and made me aware of it. As you can imagine i am very pleased with their work and recommend anyone that wishes to process anything with an excellent black nitride finish to contact. I use mineral spirits quite a bit to degrease things and that will make many finishes including parkerizing look very light in color, until it gets. Cleaning after melonite treatment rw snyder custom guns. Here is a brief background on this barrel prior to coating. I read a lot about melonite bore treatment and people call it rust resistant. Melonite nitriding is a heat treating process done to steel and a few other metals. Melonite nite2 c 20012005 mineral data publishing, version 1 crystal data. Surface treatments of steels and steel nitriding by. The authors of image transfer workshop are back to show you 45 steppedout mixedmedia techniques that will add depth and texture to your artwork. Melonite treatment of a bore creates a new compound layer in the top 1020 microns of the surface, creating a very hard, slick surface. The wrong product can turn a 3k pistol into an eye sore in seconds. When the steel or iron is rapidly cooled by quenching, the higher carbon content on the outer surface becomes hard, while the core remains tough and soft. Surface treatment of tool steels against galling failure.
Melonite surface treatment for barrels, bolts, and actions. Stretch 16 barrel info please rifle technical brian. The selection methods are based on inservice properties and functions required. The parts are then mechanically polished to achieve a comparable original finish, reimmersed into the salt quench bath, water rinsed and oiled. Hardening of numerous automotive parts, such as brake rotors, transmission clutch plates. Cryogenic treatment also called cryogenic quench is said by proponents to relieve stresses in the steel, improve the microcrystalline steel structure, tighten groups and increase muzzle velocity by about 50 fps. Feb 18, 2009 february 18th, 2009 melonite surface treatment for barrels, bolts, and actions. Ive got a new ar that has a melonite barrel and need some info on proper cleaning. The main advantage of melonite barrel treatment is that it reduces friction in the bore and lessens bore surface wear, potentially extending barrel life. The process imparts hardness and corrosive resistance to the molecular chemical surface of the metal it has minimal effect on the visible finish on the glock that surface finish the black that you see is an additional coat that. All preparation of the firearm being finished is included with the price. Buy surface treatments of steels and steel nitriding by belahssen okba online at alibris.
Each component of act treatment provides unique properties and when combined together, provide synergies that make act treatment one of the most effective treatments developed to date. This book aims to let university students know and learn the concept of environmental friendliness and its relation to surface treatment products based on the fundamental knowledge about conventional corrosion control and surface finishing. It produced a similar surface finish as the sulfinuz process with the exception. And these products are sold in every gun store, im trying to prevent others from making the mistakes i have made. When your buying online you want to be confident in the company you are buying from, and that is exactly how you should. In this way, a wealth of knowledge and expertise is.
Tufftriding and tennifer surface treatment request pdf. During the salt bath nitriding process, the metal surface is enriched with nitrogen and carbon. Melonite is basically salt bath ferritic nitrocarburizing, also known as liquid. Melonite is a surface treatment that should result in a longer lifespan.
None of the code inspectors at hospitals or retirement home follow modern code books. This process also produces an aesthetic, sleek black finish on the part and is an environmentallyfriendly alternative to salt bath, qpq, chrome. Without getting too technical, it is a heat treatment that hardens the metal without adding another layer to. In a molten bath of special salts, nitrogen, carbon, and small amounts of oxygen are diffused into the surface of the steel, creating a superhard surface, called the compound layer. Melonite will not start chipping away with extended use since it is not a surface covering like chrome. In other words, is it the melonite a permanent part of the metal. Surface treatments ibc offers many different surface treatment options, including boridingboronizing, ion plasma nitriding, salt bath nitriding, high temperature gas nitriding, thermal diffusion coatings vanadium carbide and chromium carbide, low temperature plasma nitriding, tantalizing, and aluminizing. He is working on a deal with one of the major metal companies to do it for our market. Melonite surface treatment for barrels, bolts, and actions daily. Explore 45 mixedmedia techniques mcelroy, darlene olivia, duranwilson, sandra on. Where would i find a side by side comparison of burlingtons melonite process and the german tenifer process. Firearms manufacturers can improve wearresistance, erosion protection, corrosion protection and receive a uniform black finish from one process. Surface treatment workshop and millions of other books are available for amazon kindle.
Melonite qpq salt bath ferritic nitrocarburizing, plasma nitriding. In this type of surface heat treatment it is common to oxidise the surface compound layer formed, by using the oxidising. Handbook of surface treatments and coatings brings together in a coherent way, for the first time, as much practical information as possible to help with the selection and appropriate use of surface treatments and coatings in mechanical engineering. Ncts melonite qpq line is one of the cleanest most advanced lines in the united states. Surface treatments surface treatment thredfoer taps thredshaver taps thread gages edp suffix advantage edp suffix advantages edp suffix advantages nitride 1lubricity and wear cutting edge wear na steam oxide 2 toughness and lubricity s toughness na nitridesteam oxide 6 combined properties na chrome plate 3 lubricity3 na. Topics covered range from electrodeposition and hot dip coating to diffusion and nonmetallic coatings, as well as oxide and conversion coatings. Saltbath nitriding for rifle barrels joel kendrick. The keys are to degloss and roughen the plastic surface of laminate and melamine and to use the right paint or coating products. Ive used all kinds of everything on glocks and on a few or gis melonited guns and never a problem. Treatment of hydraulic parts and components, such as piston rods, hydraulic jacks, valves, and tubes. Black melonite finish on your slide suarez international. A discussion started in 2004 but continuing through 2018 2004. Polished surfaces tend to retain approximately the surface appearance they had prior to treatment.
Melonite page 2 the leading glock forum and community. The cs rep could not tell me why or when they switched. Melonite nitro carburizing process provides cost effective. Therefore, it is vital to prepare the surface so that the paint will stick over the long term.
Considering all relevant cost elements associated with individual process steps by means of direct costing is necessary. Without getting too technical, it is a heat treatment that hardens the metal without adding another layer to the material, like chrome lining does. When i cleaned it before shooting it for the first time, i used butches bore shine on a patch and let it soak for a few minutes then ran a. Melonite qpq is a thermochemical process ferritic nitrocarburizing used for the case hardening of ironbased metals. Most chrome moly barrels that were parkerized in days past are now melonited, which is a fancy name for black nitride. Ibc coatings technologies uses a thermochemical quenchpolishquench qpq see registered trademarks disclaimer at the bottom of the page nitriding process equivalent to melonite to harden, strengthen, and improve the corrosion resistance of the surface of metal components and equipment. Enter your mobile number or email address below and well send you a link to download the free kindle app. Mar 17, 2020 you simply look to see if theres the rim of a cartridge or notno extra parts, nothing to go awry. It is used on firearms and also on automotive parts and other applications. We continue to adhere to our commitment to offering our customers advanced surface treatments with the most up to date technology available.
Melonite surface treatment for barrels, bolts, and actions ace triggerpuller joel kendrick, a former ibs 600yard shooter of the year, has been working on a melonite nitrocarburizing process for surfacehardening barrels and other gun parts. Reviews free ebook library digital health check inmarket buyer report media kit. Jun 28, 2018 the best back up iron sights buis for your ar15. Just want to share how the melonited barrel done by losok performs. Unlike some other finishes and treatments, melonite. In these and other industries, melonite qpq processing has a number of applications, including.
One more treatment deserves mention, though, strictly speaking, its not a surface treatment. Mar 09, 2016 black nitride is becoming more common and slowly replacing the parkerizing of steel parts. Corrosion control and surface finishing environmentally. Assessment of cavitationerosion resistance of 316ln.
Ace triggerpuller joel kendrick, a former ibs 600yard shooter of the year, has been working on a melonite nitrocarburizing process for surfacehardening barrels and other gun parts. Ferritic nitrocarburizing, also known by the proprietary names tennifer tenifer and melonite, is a range of proprietary case hardening processes that diffuse nitrogen and carbon into ferrous metals at subcritical temperatures during a salt bath. Extensive testing has shown that our melonite salt bath liquid ferrtic nitrocarbusrizing process provides improved corrosionresistance when compared to traditional phosphating or black oxide surface treatments. The company i have been sending my products to for the last several years is looking to expand its operations and offer their services to new customers. Control of the preheat treatment procedure prior to nitriding, including stress relief and prehardening and tempering quality and integrity of the steel surface precleaning prior to nitriding consistent steel chemistry to maximize nitridability the pioneering work of machlet. As hexagonal plates, to 1 cm, and small laminated particles. General observations the finish looks deep satin black after oiling, fades to a very dark charcoal after a while. The magpul mbus pro are finished with a melonite surface treatment, which. I have written a book called practical nitriding and ferritic nitrocarburizing. Melonite barrel treatment long range hunting forum. Salt bath ferritic nitrocarburizing heat treating services thomasnet. None of the us regulatory people read the rules or follow them.
It is sometimes known by the brand name of tufftride, tenifer or melonite. Range report melonited barrel done by losok update. All of the nitride processes produce a mottled grey surface which is turned black by immersion in a hot potassium nitrate saltpeter bath which oxidizes residual iron at the surface essentially, blueing. The best back up iron sights buis for your ar15 abes. Principles of metal surface treatment and protection. The theory of corrosion protection is also discussed. The gas melonite isnt as deep or hard as the bath melonite treatments. This modified surface layer is well integrated with the bulk material hence it is not susceptible to flaking or peeling.
Phosphates, used for surface treatment form acidic groups on the surface of particles, which are acidic and becomes a potential determinant 2, 14. Breaking the surface pondering how to begin a new piece of art. Also keep in mind, that it doesnt matter if the epas book says tenifer is still ok for use. The steel is heated up to a temp of 1075f so any tempering that may have been done at a lower temp of your material will now be done at the nitride processing temp of 1075f. Melonite vs tenifer process saltbath nitriding finishing. Joel has found that this surface is so slick that carbon does not easily adhere, so the barrel is easier to keep clean. Cavitationerosion damage was evaluated for extended exposures and compared to other surface treatments on the same substrate alloy. Purchase principles of metal surface treatment and protection, volume 28 2nd edition.
The unstoppable m16style bolt carrier group features a carpenter 158 steel bolt and rugged melonite surface treatment throughout. Quench polish quench qpq is a specialized type of nitrocarburizing case hardening that increases corrosion resistance. Im really surprised to learn that any kind of gun product can damage a melonite type finish. Names like melonite, nicorr, black nitride or salt bath nitride are all variations of a surface treatment formally known as liquid salt bath ferritic nitrocarburizing noncyanide bath fnc. Saltbath nitriding changes the surface molecular structure of the steel for about 4. Thermochemical treatment of metals 97 during carburizing of silicon with carbon, pre deposited from a carbon source a 3csic111 film forms because it is well latticematched with si110. Rules governing public water systems green book call 9197079100 or download from web site click on above link to download green book and revised rules as of july 1, 2019 surface water needs to know a certification study guide for surface water systems revised 2019. Melonitetreatment of a bore creates a new compound layer in the top 1020 microns of the surface, creating a very hard, slick surface. The product of this quench polish quench process is a layer of iron oxide on the surface that enhances the corrosion resistance for non stainless steels and promotes an appealing, black, cosmetic finish. Its the same process used in harding camshaft lobes and crank shaft journals.
The high temperature melonite process produces a much thicker nitride layer than the low temperature process. The main advantage of melonite barrel treatment is that it reduces friction in the bore and lessens bore surface wear, potentially extending barrel. Principles of metal surface treatment and protection deals with the principles of metal surface treatment and protection. This is a discussion on range report melonited barrel done by losok update within the accuracy forums, part of the m14 m1a forum category. Improperly applied paint will peel off of laminate and melamine, creating a bigger mess than you started out with. Melonite formation by heat treatment of steels the outer case or surface will have higher carbon content than the primary material. Go in the yellow book and find a metal treatment service in your area. Then you can start reading kindle books on your smartphone, tablet, or computer no kindle device required. I have one that is a few months old with almost 9k rounds on it and i will be doing the final accuracy test on it today before i send it back to sst. To clean your barrel after meloniting will require these items.
Innovation trends in plastics decoration and surface treatment. Black melonite coated steel, the melonite nitrocarburizing process melonite is a thermochemical treatment for improving surface properties of metal parts. Melonite is a thermochemical treatment for improving surface properties of metal parts. This surface treatment is designed to penetrate into and migrate through cementitious materials to reach and protect embedded reinforcing metal. I knew glock had been playing with different finishes the last couple of years and had heard rumors about them stopping using the actual tenifer process and today i talked to glock inc. The melonite process begins with the placement of parts in a recirculating air preheat furnace, followed by immersion for anywhere between 60240 minutes in a molten.
Melonite was supposed to be the hardest wearing finish available and as it is a surface treatment, rather than a coating, i hoped it wouldnt alter any of the tight tolerances on my rather well fitted cbob. Ncts production melonite line is capable of processing large production lots or small individual lots. Search the worlds most comprehensive index of fulltext books. These techniques are the perfect jumpoff point for creating art you will love to look at, and, in some cases, touch. In figure 22, the zeta potential as a function of ph for untreated and surface treated tio 2 pigments are presented. Ed crutchley is a consultant in plastics decoration and surface treatment. The processing temperature ranges from 525 c 977 f to 625 c 1,157 f. The melonite process begins with the placement of parts in a recirculating air preheat furnace, followed by immersion for anywhere between 60240 minutes in a molten nitrogenrich salt solution contained in an aerated furnace. Nitriding vastly increases the hardness of the metal that is treated without changing the material dimensionally like the build up of a. After nitriding, parts are treated in an oxidizing bath, watercooled and rinsed. Practical nitriding and ferritic nitrocarburizing david pye. Quality of the surface scratches, sharp transitions and edges.
Act treatment is a hybrid surface treatment consisting of vegetable derived lipoamino acid nai, fatty acid metal soap mt and silane. Introducing compressive stresses compensate for applied tensile stresses into thin surface layer by shot peening firing small shot into surface to be treated. Melonite is basiclly the nutride process of giving metal parts a hot salt bath resulting in ferritic nitrocarburizing. A good penetrating oil such as kroil or pb blaster. A nitrocarburizing surface treatment known domestically as the melonite process was applied to type 316ln stainless steel test pieces and exposed to sonication conditions in mercury using a vibratory horn technique. New gas nitride treatment page 3 the leading glock.
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