147 results about "Chromium nitride" patented technology

The invention belongs to the field of metal materials, and provides a hard alloy wear-resistant steel ball suitable for mine ore grinding and a preparation method thereof.The hard alloy wear-resistant steel ball is prepared from waste steel pig iron as a basic raw material and chemical components including 2.1%-2.2% of C, 9.8%-10.0% of Cr, 0.10%-0.20% of V and 0.03%-0.06% of Ti; a core-shell precipitated phase microstructure design with MN / MCN as a hard core and chromium carbonitride as a gradient self-passivation shell layer is formed through medium-frequency induction furnace smelting, controlled nitrogen introduction establishment of a V-Ti-C-N microalloy system, bottom pouring solidification and austenitizing quenching and tempering heat treatment processes, and the performance indexes that the surface hardness is HRC60-63 and the core hardness is HRC54-58 are achieved; the average particle size of a core-shell precipitated phase is in dispersed distribution of 20-200nm, the shell thickness is 5-50nm, and the alloy steel ball has excellent wear resistance and corrosion resistance under the high-impact and high-wear working conditions of wet ore grinding, solves the problem of insufficient wear resistance and corrosion resistance of a traditional alloy steel ball, and has wide mine ore grinding application value.

The invention relates to the technical field of stainless steel pneumatic cylinder barrels, and particularly discloses a wear-resistant stainless steel pipe for a pneumatic cylinder barrel and a preparation process thereof.The wear-resistant stainless steel pipe for the pneumatic cylinder barrel comprises the steps that firstly, a powder metallurgy method is adopted, tungsten carbide, cerium oxide, chromium nitride and other components are added into stainless steel powder, and the performance of a steel pipe base body is enhanced; the corrosion-resistant alloy layer is deposited on the surface of the steel pipe, so that the corrosion resistance, wear resistance and other properties of the steel pipe are enhanced, finally, a silicon nitride wear-resistant ceramic layer is sintered on the surface of the corrosion-resistant coating, and two lubricants of graphite and molybdenum sulfide are synthesized in gaps and holes of the wear-resistant ceramic layer. The defects on the ceramic surface are blocked; and the ceramic coating is endowed with a self-lubricating function.

The invention provides an ultra-low carbon duplex stainless steel all-position welding flux-cored wire and a welding method thereof.The outer skin of the flux-cored wire is a stainless steel strip, the flux-cored wire is filled with powder, and the powder comprises, by mass, 18-25% of natural rutile, 20-30% of stainless steel powder, 20-30% of stainless steel powder, 20-30% of stainless steel powder and the balance stainless steel powder. 3-5% of sodium titanate; 5-10% of quartz sand; 0.5 to 4 percent of zircon sand; 1-3% of sodium fluoride; 15 to 25 percent of ferromolybdenum; 3-6% of nitrided ferrochrome; 2-4% of electrolytic manganese; 5-8% of nickel powder; 27 to 32 percent of metal chromium; 0.5-2% of magnesium powder; 0.5 to 1.5 percent of bismuth oxide; and 1-4% of silicon iron. The flux-cored wire is used for all-position welding of third-generation duplex stainless steel, welding spatter is small, and weld joint forming is good; the carbon content of a weld joint is extremely low, and through component and welding process control, weld joint metal has strength, plasticity, toughness and corrosion resistance equivalent to those of base metal. And the double requirements of high strength and toughness and high corrosion resistance in the manufacturing fields of submarine pipeline laying, shipbuilding, marine gas field exploitation and the like are ensured.

The invention relates to the technical field of welding materials, and particularly discloses a high-temperature-resistant flux-cored wire containing rare earth elements and a preparation method of the high-temperature-resistant flux-cored wire. The high-temperature-resistant flux-cored wire containing the rare earth elements comprises a welding wire skin and a flux core. The flux core comprises the following raw materials of dehydrated rutile, dehydrated potassium feldspar, zircon sand, metal chromium powder, metal nickel powder, electrolytic manganese, ferrotitanium, ferro-aluminum, potassium cryolite, potassium titanate, sodium titanate, fine iron powder, yttrium-based iron alloy powder, atomized ferrosilicon, nitrided ferrochrome, bismuth oxide, auxiliaries and the balance reduced iron powder. The auxiliary agent is a mixture of a zirconium-iron alloy, a titanium-iron alloy and an aluminum-magnesium alloy. A specific alloy auxiliary is introduced into the flux core to protect stable transition of rare earth yttrium, yttrium and multiple components synergistically optimize the weld joint performance, 253MA heat-resistant steel is matched, slag and electric arc regulation and control components and a reasonable process are matched, and the welding quality of the welding wire is improved.

A compressor of an embodiment includes a compression mechanism part that compresses a refrigerant in a sealed container. The compression mechanism part includes Cr and includes a first member and a second member which slidingly move relative to each other. The first member has a chromium layer and a nitride layer formed on a base member surface in this order. The nitride layer includes CrN and TiN. Carbide is deposited on a surface of the second member.

The invention discloses a smelting process of a nickel-chromium-iron-based alloy, which comprises the following steps of: smelting and pouring a cast ingot by adopting an EAF (Electric Arc Furnace)-LF (Ladle Furnace)-VOD (Vacuum Oxygen Decarburization) furnace-LF (Ladle Furnace)-die casting process route, carrying out VOD vacuum oxygen decarburization by utilizing coarse smelting molten steel obtained by full scrap steel smelting in the electric arc furnace, and using nitrogen in the LF furnace to replace nitrided chromium iron to increase nitrogen. The desulfurization and deoxidation control parameters of each furnace are optimized, and finally the yield of Cr is controlled to be 99% or above and the yield of C is controlled to be 0.025% or below through a VOD oxygen blowing decarburization model; according to an LF furnace nitrogen increasing model, the nitrogen content of molten steel is accurately controlled, meanwhile, oxygen in the molten steel is controlled to be 0.003% or below, other chemical components meet the standard requirements, and the problem that the nickel-chromium-iron-based alloy is smelted through an electric arc furnace, and key elements cannot be accurately controlled is solved.

The invention provides a high-toughness austenitic stainless steel welding rod for 5Ni steel and a preparation method of the high-toughness austenitic stainless steel welding rod. The welding rod comprises a core wire and a coating coated on the surface of the core wire, and based on the total amount of the core wire, the core wire comprises the following components in percentage by mass: less than or equal to 0.09% of C, less than or equal to 0.15% of Si, 1.6-2.5% of Mn, 18.5-20.5% of Cr, 12.5-14.5% of Ni, 2.1-3.2% of Mo and 0.06-0.18% of Ti; 0.12-0.24% of Al, less than or equal to 0.007% of S, less than or equal to 0.008% of P, less than or equal to 0.006% of O, less than or equal to 0.001% of H, less than or equal to 0.012% of S + P, and the balance Fe and inevitable impurities. On the basis of the total amount of the coating, the coating comprises, by mass, 28-38% of carbonate, 15-20% of fluorite, 1-3% of lithium fluoride and sodium fluoride, 8-12% of synthetic mica, 3-6% of potassium silicotitanate, 2-4% of zircon sand, 9-15% of electrolytic manganese metal, 2-4% of ferrotitanium, 2-5% of passivated nickel-magnesium alloy, 1-3% of atomized ferrosilicon, 1-3% of lanthanum cerium fluoride, 1-3% of tungsten and molybdenum, 3-5% of nitrided ferrochromium and 1-2% of CMC. The welding rod is good in all-position welding controllability, extremely low in air hole sensitivity and excellent in low-temperature toughness, and can meet the requirements for high-quality and efficient welding of 5Ni steel.

The invention discloses an ultralow-temperature high-toughness non-magnetic steel flux-cored wire for a controllable nuclear fusion device and a preparation method of the ultralow-temperature high-toughness non-magnetic steel flux-cored wire. A special stainless steel strip is adopted to wrap a metal powder type flux core, and the flux core accounts for 29.6%-30.4% of the total mass of the flux-cored wire; the flux core comprises the following components: 14%-18% of electrolytic manganese, 21%-23% of chromium metal, 0.3%-1.0% of ferrotitanium, 4.4%-5.0% of nitrided ferrochromium, 27.5%-28.5% of nickel powder, 0.5%-1.0% of 52 # ferrosilicon, 8%-9% of molybdenum powder, 0.1%-0.3% of lithium fluoride and the balance of atomized iron powder. The problems that an existing non-magnetic steel welding material is insufficient in toughness and high in magnetic conductivity at the ultralow temperature of-269 DEG C are solved by optimizing flux-cored alloy elements of (nickel-chromium-nitrogen) synergistic stable austenite, matching with a manufacturing process of sealed baking and roller die drawing forming of powder at the temperature of 120-140 DEG C and a welding process protected by argon (Ar) with the purity of 99.999%. The AKV2 of a welded joint is larger than or equal to 34J at the temperature of-269 DEG C, the tensile strength is larger than or equal to 620 MPa, the relative permeability is smaller than or equal to 1.02, the problems that nitrogen of an existing solid welding wire is difficult to control, and hardening is easy can be solved, and the welding wire is completely matched with the extreme working condition of a controllable nuclear fusion device.

The invention relates to the technical field of coatings, in particular to a PVD (Physical Vapor Deposition) coating process method applied to a galvanized sheet stamping die, which comprises the following steps of: pretreating the die, cleaning the surface of the die by a wet process, placing the die in a vacuum deposition cavity, vacuumizing, and heating to a preset temperature in an inert gas environment; plasma pretreatment is conducted on the surface of the mold, a high-power pulse magnetron sputtering cathode of a chromium target is selected to discharge in the argon working environment to generate plasma rich in chromium ions, and negative bias voltage is applied to the mold; starting at least one unbalanced magnetron sputtering cathode, gradually increasing the target current by the unbalanced magnetron sputtering cathode in a current ramp-up mode so as to improve the target voltage, and synchronously introducing nitrogen as a reaction gas, so that a nitride transition layer is deposited on the surface of the mold; and a high-power pulse magnetron sputtering cathode and an unbalanced magnetron sputtering cathode synchronously work on the transition layer to carry out multi-source reactive sputtering deposition, so that a multi-layer hard coating formed by alternating titanium aluminum vanadium and chromium nitride is formed. By combining the high-power pulse magnetron sputtering technology and the unbalanced magnetron sputtering technology, the problems that in the prior art, a coating is poor in adhesive force and insufficient in high temperature resistance are solved.

The invention provides a preparation method of a high-wear-resistance alloy lining plate, and relates to the technical field of wear-resistance alloys, carbon steel and pig iron are mixed, heated and melted, high-carbon ferromanganese, medium-carbon ferrochrome and ferrosilicon are added, heating refining is carried out, aluminum powder is added, the mixture is put into a mold, cooling and demolding are carried out, heating homogenization, quenching and cooling are carried out, and a mother plate is prepared; mixing bismaleimide, the composite powder and sepiolite fibers, heating and stirring, coating a mother board with the mixture, firstly applying negative pressure, then applying positive pressure, heating and cooling to obtain a substrate layer; and placing the mother board in magnetron sputtering equipment, sputtering on the substrate layer to obtain a chromium nitride functional layer, and cooling to obtain the high-wear-resistance alloy lining board. The composite powder is prepared by mixing and heating chromium carbide powder and a hydrogen peroxide solution, filtering, mixing with an ethanol solution and gamma-aminopropyltriethoxysilane, heating, condensing and refluxing, washing and drying, and mixing and heating with amine-terminated polyether and N, N-dimethylformamide. The wear-resistant stability of the alloy lining plate can be improved.

The invention discloses a surface treatment process for improving the high-temperature wear resistance of a stirring head. The surface treatment process comprises the following steps: 1) cleaning a stirring needle and the bottom of a shaft shoulder for three times by using distilled water, and blow-drying for plating; (2) dipping a plating pen in the composite brush plating solution to carry out electroplating brush treatment on the stirring needle and the bottom surface of the shaft shoulder, wherein the thickness of a plating layer is not less than 80 microns; the composite brush plating solution comprises a nickel-cobalt plating solution, tungsten nitride, chromium nitride and composite powder, wherein the composite powder comprises metal titanium powder, tin powder and chromium powder; by adopting the composite brush plating technology, the stirring needle and the shaft shoulder bottom of the stirring head are subjected to local surface treatment, the hardness of the stirring needle and the shaft shoulder bottom subjected to brush plating is obviously improved, the room-temperature and high-temperature wear resistance is obviously improved, the service life of the stirring head is prolonged, and the production cost of an enterprise is reduced.

The utility model discloses a novel high-strength plastic film, which consists of a multi-layer structure and comprises a polyethylene glycol terephthalate polymer layer, a carbon fiber composite material layer and a polyethylene layer which are tightly combined through a polyester adhesive layer. The thickness of the polyethylene glycol terephthalate polymer layer is 50-200 microns, the thickness of the carbon fiber composite material layer is 20-100 microns, and the thickness of the polyester adhesive layer is 1-10 microns. In addition, a metal ceramic coating is further arranged between the carbon fiber composite material layer and the bonding layer, the coating can be a titanium carbonitride layer or a chromium nitride layer, and the thickness of the coating is 10-50 micrometers. The plastic film with the multi-layer structure has excellent hardness and wear resistance, and is suitable for the fields of packaging, buildings, automotive trim, electronic product protective films and the like. By controlling the material and thickness of each layer, a high-performance and high-strength plastic film solution is provided.

The application relates to the technical field of welding materials, and particularly discloses a high-temperature-resistant flux-cored wire containing rare earth elements and a preparation method thereof. The high-temperature-resistant flux-cored wire containing rare earth elements comprises a wire sheath and a core; the core comprises the following raw materials: dehydrated rutile, dehydrated potassium feldspar, zircon sand, metal chromium powder, metal nickel powder, electrolytic manganese, ferrotitanium, aluminiferous iron, potassium cryolite, potassium titanate, sodium titanate, iron powder, yttrium-based iron alloy powder, atomized ferrosilicon, chromium-iron nitride, bismuth oxide, an additive, and the balance of reduced iron powder; the additive is a mixture of zirconium-iron alloy, ferrotitanium alloy and aluminum-magnesium alloy. The application introduces a specific alloy additive into the core to protect the transition of the rare earth yttrium, optimizes the welding performance of the yttrium and multiple components in cooperation, matches the 253MA heat-resistant steel, adjusts the components of the molten slag and the electric arc, and reasonably processes the technology, so that the welding quality of the wire is improved.

One aspect of the present invention is a layered film–coated glass plate (100) that includes: a glass plate (10) that has a first principal surface (11) and a second principal surface (12); and a layered film (20) that is on the first principal surface (11). The layered film (20) has, in order from the first principal surface (11) side, a first dielectric layer (21), a first functional layer (22), a second dielectric layer (23), a second functional layer (24), and a third dielectric layer (25). The first functional layer (22) and the second functional layer (24) contain at least one of titanium nitride, chromium nitride, zirconium nitride, and tantalum nitride, and the first dielectric layer (21), the second dielectric layer (23), and the third dielectric layer (25) contain silicon nitride or aluminum nitride. The first dielectric layer (21) has a film thickness of 60–150 nm and a visible light transmittance of no more than 8%. The visible light transmittance on the second principal surface (12) side is no more than 35%.

The present invention discloses a molybdenum-containing heat-conducting austenitic manganese steel and a preparation method thereof, which relates to the technical field of molybdenum-containing manganese steel and comprises the following processes: mixing pig iron and pure iron and melting them; adding ferrochrome, ferromanganese, ferromolybdenum, ferrotitanium, ferroniobium and chromium nitride, and continuing to melt to form molten steel; discharging the furnace and casting to obtain a blank; and performing heat treatment to obtain austenitic manganese steel. By adding element molybdenum to the manganese steel, carbides are formed with carbon in the manganese steel and are dispersed in the steel, which can optimize the morphology and distribution of carbides in the austenitic manganese steel, reduce defects in the manganese steel, and inhibit dislocation movement, which helps to improve the thermal conductivity of the manganese steel; at the same time, solute atoms around it are depleted, which can further improve its thermal conductivity.

The invention discloses a low-cost high-toughness pitting-resistant stainless steel powder-cored wire and a cladding layer and application thereof.The cladding layer is made of the low-cost high-toughness pitting-resistant stainless steel powder-cored wire, the powder-cored wire comprises a steel belt skin and a powder core material, and the powder core material comprises, by mass, 30%-35% of manganese powder, 20%-25% of high-carbon ferrochrome, 5%-10% of iron powder, 5%-10% of iron powder, 5%-10% of iron powder, 5%-10% of iron powder and the balance iron powder. The material comprises, by mass, 1%-2% of nickel powder, 16%-23% of ferromolybdenum, 0.5%-1% of ferrosilicon, 14.5%-22% of nitrided ferrochrome and the balance atomized iron powder, and the sum of the mass percent of the components is 100%. According to the cladding layer, the cladding layer has a Cr-Mn sequential double passivation corrosion mechanism through component regulation and control, the pitting corrosion resistance is good, meanwhile, it is guaranteed that the cladding layer has good mechanical performance, and the preparation cost is greatly reduced; the welding wire is free of splashing in the cladding process, a prepared cladding layer and a base material have a good combination effect, forming is attractive, the surface is free of defects such as air holes, and the interior is free of air holes after polishing.

There is provided an object holder configured to support an object, the object holder comprising a support surface having a plurality of support elements, the support elements comprising a metal-Si multilayer, a metal-Ge multilayer, and / or a chromium nitride layer, the metal-Si multilayer, the metal-Ge multilayer, and / or the chromium nitride layer are thermally treated to provide a selectively alterable height of the respective support elements, via a thermal treatment of the metal-Si multilayer, the metal-Ge multilayer, and / or the chromium nitride layer. Also provided are a stage comprising such an object holder, an apparatus for controlling the flatness of a surface comprising such an object holder, an optical element for a lithographic apparatus, an apparatus for controlling the flatness of a surface, a lithographic apparatus or tool comprising such an object holder, and a method of manufacturing the same. A method of controlling the shape of a surface, a method of manufacturing an object holder, a method of correcting the flatness of an object holder or an optical element, and the use of such an apparatus or method in a lithographic apparatus or process.

The present application relates to a kind of metal surface high wear-resistant corrosion-resistant composite strengthening layer and preparation method thereof, the composite strengthening layer is composed of bearing layer, transition layer, functional layer, bearing layer is nitriding layer, transition layer is oxygen permeation layer, functional layer is nanocomposite ceramic layer, bearing layer preparation method is ion nitriding, thickness is 20 μm~300 μm;Transition layer thickness is 1 μm~3 μm, is prepared by three-stage ion oxygen permeation;Functional layer preparation method is the composite layer of vacuum ion deposition chromium nitride layer and multinary nitride layer.The composite strengthening layer of the present application is small, and the organization structure is dense, and the combination strength is high, and the surface hardness is high, and the friction coefficient is small, the composite strengthening layer combines the performance advantage of single strengthening layer, that is, it has better wear resistance, and it also has better corrosion resistance, especially improves the wear resistance and corrosion resistance of part in service condition, especially suitable for the sealing surface strengthening of chemical ball valve.

The invention discloses an easy-to-demould concrete mould and a preparation method thereof, and relates to the field of moulds, the easy-to-demould concrete mould comprises a mould body and a demoulding layer used for separating the mould body from concrete, and the demoulding layer is composed of at least three of titanium nitride, chromium nitride, tungsten nitride, titanium carbide, titanium carbonitride, chromium carbide and tungsten carbide. The concrete mold is manufactured through the mold body and the demolding layer formed by the multiple high-hardness materials, on one hand, the organizational structure of the metal carbon and / or nitride demolding layer material is greatly different from the organizational structure of concrete, adhesion between the concrete mold and a concrete workpiece is avoided as much as possible, and the demolding difficulty is reduced; and the concrete workpiece is difficult to damage the high-hardness demolding layer, so that the service life of the concrete mold is prolonged.

The present invention discloses a lead-free bismuth copper alloy material, a preparation method thereof and an application thereof. The preparation raw materials include commercially available copper rice and additives; the additives include metal additives and metal nitride additives; the metal additives include tin ingots, bismuth ingots and aluminum ingots; the metal nitride additives include magnesium nitride, chromium nitride and aluminum nitride; by weight, for every 100 parts of the copper rice, 1-5 parts of the tin ingot, 1-5 parts of the bismuth ingot and 1-5 parts of the aluminum ingot are used; by weight, for every 100 parts of the copper rice, 0.1-1 part of the magnesium nitride, 0.1-1 part of the chromium nitride and 0.1-1 part of the aluminum nitride are used; the copper alloy material in this application has better wear resistance, corrosion resistance and cutting effect.

The utility model discloses a novel lithium energy battery material vibrating screen machine which comprises a base, supporting springs are fixedly arranged at the four corners of the top end of the base, a screen body is fixedly arranged at the tops among the four supporting springs, a dust cover is arranged at the top end of the screen body in a clamped mode, and one side of the top end of the dust cover is fixedly communicated with a feeding hopper. According to the novel lithium energy battery material vibrating screen machine, surface modification is carried out on the screen body, the dust cover, the feeding hopper, the discharging hopper, the screen cloth and the material receiving hopper through the ion nitriding technology, and then a superhard ceramic film mainly containing chromium nitride is formed on the surfaces of the screen body, the dust cover, the feeding hopper, the discharging hopper, the screen cloth and the material receiving hopper. The wear-resisting performance of parts, making contact with materials, on the screening machine can be improved, abrasive dust generated by abrasion is prevented from being doped in battery materials, the purity of the battery materials is further improved, the quality of lithium battery products is improved, and non-metallization of the surface of the screening machine can be achieved.

A method for producing a chromium nitride (CrN) thin film is provided. The method includes reactive radio frequency magnetron sputtering chromium onto a substrate in the presence of a gaseous mixture including nitrogen and argon to form the CrN thin film, where a ratio of the nitrogen gas to the argon gas is 1:2 to 1:10, and where the CrN thin film has an average thickness of 500 to 1500 nm. The CrN film as prepared by the method of the present disclosure can be used in sensors for cryogenic temperature.

A method for producing a chromium nitride (CrN) thin film is provided. The method includes reactive radio frequency magnetron sputtering chromium onto a substrate in the presence of a gaseous mixture including nitrogen and argon to form the CrN thin film, where a ratio of the nitrogen gas to the argon gas is 1:2 to 1:10, and where the CrN thin film has an average thickness of 500 to 1500 nm. The CrN film as prepared by the method of the present disclosure can be used in sensors for cryogenic temperature.

The invention discloses a wear-resistant steel-based mold material for plastic magnetic injection molding and a preparation method of the wear-resistant steel-based mold material, and relates to the technical field of mold steel materials. When the steel-based mold material is prepared, metal chromium, titanium powder, ferromolybdenum, graphite, ferroboron, lanthanum iron and electrolytic iron are weighed according to a specific proportion, and a cast ingot is obtained through vacuum induction melting and argon protection pouring; a calcium fluoride-aluminum oxide-calcium oxide mixed slag system serves as a remelting medium, electroslag remelting, homogenization treatment and oil quenching are conducted on the cast ingot, and a steel ingot is obtained; the steel ingot is subjected to multidirectional forging and temperature-controlled cooling, and forged die steel is obtained; and finally, the forging die steel is subjected to gas nitriding subzero treatment and multi-stage tempering, gradient titanium nitride and chromium nitride metal ceramic layers are induced to be formed on the surface, and the wear-resistant steel-based die material for plastic magnetic injection molding is prepared. The prepared steel-based mold material has high hardness, high wear resistance and corrosion resistance.

The invention relates to the technical field of hydrogen protection, in particular to a hydrogen-resistant wear-resistant coating as well as a preparation method and application thereof. The invention provides a hydrogen-resistant wear-resistant coating which comprises a Zr metal bonding layer, a periodic nano multilayer and a chromium nitride sealing top layer which are sequentially stacked from bottom to top, the periodic nano multilayer comprises CrN ceramic layers and Zr metal layers which are sequentially and alternately stacked on the surface of the Zr metal bonding layer; and the Zr metal bonding layer is made of Zr. The hydrogen-resistant wear-resistant coating has excellent hydrogen resistance and wear resistance at the same time.

The invention provides a method for depositing a GLC film on the basis of the surface of a plastic workpiece through a PVD technology and the corresponding plastic workpiece. The method comprises the steps that S1, the plastic workpiece is subjected to ultrasonic cleaning and baking; s2, a chromium target, a tungsten target and a graphite target are washed through multi-arc ion plating magnetron sputtering coating equipment; s3, vacuumizing the placed plastic workpiece, and introducing argon to open a chromium target to form a metal chromium layer; s4, starting a chromium target and a tungsten target for introducing argon to form a metal chromium-tungsten layer; s5, argon and nitrogen are introduced for starting a bias power supply, a chromium target and a tungsten target are started, and a chromium tungsten nitride layer is formed; s6, turning on a bias voltage power supply, turning off nitrogen, turning on a chromium target, a tungsten target and a graphite target, and introducing argon and acetylene to adjust bias voltage, so as to form a multi-element nano multilayer film structure; s7, turning on a bias power supply, turning off the tungsten target, turning on the chromium target and the graphite target, and introducing argon and acetylene to form a GLC film layer; and S8, a target material power supply, acetylene, argon and a bias power supply are turned off, and the plastic workpiece is cooled.

A method for processing an object for lithography comprising: Providing a first gas comprising first molecules; Providing a particle beam on a working area of the object for removing a first material (A) in the working area based at least in part on the first gas; wherein the first material comprises chromium and nitrogen, and wherein the first material comprises at least 1 atomic percent nitrogen, preferably at least 5 atomic percent nitrogen, more preferably at least 10 atomic percent nitrogen, most preferably at least 20 atomic percent nitrogen; wherein the first molecules comprise a halogen compound; wherein the halogen compound comprises a noble gas halide; Providing a second gas comprising second molecules, wherein the removal of the first material is further based at least in part on the second gas; wherein the second molecules comprise an oxygen-containing component; wherein the first material comprises chromium nitride.

The invention discloses a low-temperature steel flux-cored wire and a preparation method and application thereof, and belongs to the field of flux-cored wires. The flux-cored wire comprises a stainless steel strip and flux-cored powder filled in the stainless steel strip, and the flux-cored powder comprises, by mass, 37%-41% of electrolytic nickel powder, 18%-22% of metal chromium powder, 2.2%-3.2% of chromium nitride, 2.0%-3.5% of molybdenum powder, 16%-21% of electrolytic manganese powder, 1.6%-1.8% of pre-alloyed silicon-titanium-iron powder, 0.45%-0.55% of rare earth silicon iron, 0.6%-0.8% of vanadium nitride, 0.4%-0.6% of yttrium-stabilized zirconia, 0.08%-0.12% of boron-nickel alloy, 1.5%-2.0% of ferroniobium powder and the balance iron powder. And the balance iron powder. Through the design of the low-carbon and high-alloy flux core powder, the strength of a welding material is matched with that of a low-temperature steel base material, and good toughness, high strength and excellent corrosion resistance of the material are kept in an extremely low-temperature environment.

The present application relates to hydrogen protection technical field, especially to a kind of hydrogen barrier wear-resistant coating and its preparation method and application.The present application provides a kind of hydrogen barrier wear-resistant coating, from bottom to top, including the Zr metal bonding layer, periodic nanometer multilayer and chromium nitride top layer that are sequentially stacked;The periodic nanometer multilayer includes CrN ceramic layer and Zr metal layer that are sequentially and alternately stacked on the surface of the Zr metal bonding layer;The material of the Zr metal bonding layer is Zr.The hydrogen barrier wear-resistant coating simultaneously has excellent hydrogen barrier performance and wear resistance.

The application relates to a thin film structure, a cubic boron nitride thin film structure, a cutting tool and a manufacturing method and equipment thereof, the thin film structure comprising a preliminary bonding layer-intermediate bonding layer-NCD; wherein the preliminary bonding layer comprises one of CrN and TiN; and the intermediate bonding layer comprises at least one of an oxidation thin film and a nitrogen-oxygen thin film. The preliminary bonding layer such as chromium nitride or titanium nitride is combined with the intermediate bonding layer to bond nanometer polycrystal diamond, under the premise of the hardness of the nanometer polycrystal diamond, so that the cobalt element of the related tool such as a hard alloy surface cannot affect the thin film formed by the nanometer polycrystal diamond, thereby the cobalt element on the surface of the hard alloy is not removed, and under the premise of keeping the smoothness of the tool surface, the process of removing the cobalt element on the surface of the hard alloy by using chemical liquid is avoided, and therefore the application has the advantages of simple process and small pollution.