53 results about "Inconel" patented technology

Herein discussed is a heat management system comprising a pipe and a static auger inside the pipe, wherein the pipe has an inner diameter of d, wherein the auger has an outer diameter D and a pitch P, wherein the ratio of D / P is no less than 1, and wherein the auger outer diameter D is no less than 90% of the pipe inner diameter d. In an embodiment, the ratio of D / P is in the range of 2-10, or 2-5, or 2-4, or 5-10. In an embodiment, the pipe is made from stainless steel, carbon steel, Monel, Inconel, Incoloy, Hastelloy, ceramics, silicon carbide, alumina, and combinations thereof. In an embodiment, the system comprises a fluid passing through the pipe, wherein the pipe heats or cools the fluid.

The invention discloses equipment and a method for customizing front and back morphology structures of an invar alloy ultra-thin strip, and belongs to the field of invar alloy ultra-thin strip processing. The equipment comprises a working roller with differentiated surface topography, a first middle roller with a polyurethane-based organic material coating layer, an ultrasonic clamping device, an integrated tension weighting control system and a central control unit. By configuring different surface roughness of the upper working roll and the lower working roll and combining stable transverse pressure stress and axial ultrasonic vibration provided by the first middle roll, asymmetric plastic flow and shape copying of metal on the front face and the back face of the strip are achieved. In the rolling process, plate shape defects caused by friction differences are dynamically compensated by cooperatively adjusting the roll shifting amount of the first intermediate roll and the convexity of the backing roll saddle, finally, customized production of the 4J36 invar alloy ultra-thin strip with the thickness of 15 microns is achieved, the A face and the B face of the strip have different surface roughness, and the surface roughness of the strip is greatly improved. And the specific requirement of a fine metal mask plate pore-forming process on the surface state of the base material is met.

This invention discloses a polishing method and apparatus for nickel-based alloys based on photocatalysis and photothickening synergy. It achieves dual-driven processing by simultaneously triggering photocatalytic workpiece surface modification and photo-triggered thickening of the polishing slurry through an integrated dual-light system, realizing surface softening and medium thickening. Composite abrasive particles loaded with TiO2 / ZnO photocatalysts form a low-hardness oxide layer on the nickel-based alloy surface under ultraviolet light irradiation, reducing processing resistance. Precise viscosity control of the polishing slurry is achieved through azobenzene / cinnamic acid photochromic molecules, combined with shear-induced particle agglomeration to form a dual thickening system, improving viscosity stability. This invention solves the technical pain points of work hardening in nickel-based alloys, large viscosity fluctuations in traditional shear-thickening polishing slurries, and poor processing uniformity, improving processing efficiency and workpiece surface quality. It is suitable for efficient and precise machining of difficult-to-machine nickel-based alloys such as Inconel 718 and GH4169.

An Inconel 718 dodecagonal countersunk bolt upsetting technology is characterized by comprising the following steps that blanking is conducted, specifically, blanking is conducted through a lathe according to the actual use length and diameter of a bolt; core grinding is conducted, specifically, the outer circle of the blanked blank is ground; lubricating: the blank subjected to centerless grinding is lubricated by adopting copper plating; and upsetting is conducted, specifically, the lubricated blank piece is heated and put into an upsetting mold after reaching the set temperature, upsetting is conducted through a punching machine, the columnar blank piece is subjected to one-time upsetting forming, and the bolt polish rod is machined. According to the technology, one-time upsetting forming can be achieved, the defects caused by traditional multiple-time upsetting forming are overcome, the consistency of the part size and the product quality can be guaranteed, the production efficiency can be improved, the cost can be reduced, and the technology has very high practicability and is suitable for being vigorously popularized.

The invention relates to the technical field of cleaning agents, in particular to a method for cleaning a titanium tetrachloride preheater. According to the method for cleaning the titanium tetrachloride preheater, provided by the invention, the titanium tetrachloride preheater is regularly cleaned by adopting dry ice. Dry ice cleaning is a physical process, a cleaning medium is solid carbon dioxide and does not chemically react with equipment materials (such as Inconel 601 alloy) and residual titanium tetrachloride, the problem that corrosive hydrogen chloride gas is generated by traditional water washing is completely eradicated, and an equipment body is protected. Efficient and lossless cleaning of the titanium tetrachloride preheater can be achieved, and the titanium dioxide quality problem caused by falling of a carbon scale layer of the titanium tetrachloride preheater is thoroughly solved.

The application discloses a preparation method of large-size super-long invar alloy flat material, adopts four forging processes, and specifically comprises the following steps: first fire is used for head riser pretreatment, second fire is used for vertical ingot upsetting and octagonal shaping, third fire is used for secondary vertical ingot upsetting and multi-surface elongation, and fourth fire is used for finished product forging. Through segmented heating and forging cooperative control, the bottleneck problem existing in the forging process of the super-long specification is broken through, the large-size super-long invar alloy flat material with a weight of 25-30 t and a length of greater than or equal to 11 m is obtained, and the forging quality and production efficiency of the large-size super-long invar alloy flat material are significantly improved.

The application relates to the technical field of inconel steel production, in particular to high-strength inconel steel and a preparation method thereof. The inconel steel is composed of the following chemical components in percentage by weight: C: 0.04%-0.08%, Si:<0.5%, Mn: 0.2%-0.5%, P<=0.02%, S<=0.006%, Mo: 0.3%-0.85%, Ni: 35.5%-36.5%, Al: 1.3%-1.6%, Ti: 1.3%-1.7%, W: 0.3%-0.5%, Nb: 0.4%-0.6%, and the rest is Fe and impurity elements. The inconel steel manufactured by the application has a tensile strength of greater than or equal to 920 MPa, a yield strength of greater than or equal to 580 MPa, an elongation of greater than or equal to 8, a hardness of greater than or equal to 340 HV, and an expansion coefficient of 2.7-3.2*10-6 / DEG C. The application effectively solves the problems of coarse columnar crystal, low strength and easy crack of inconel alloy, improves the strength and crack sensitivity of the inconel steel through alloying and electromagnetic stirring, can not only improve the strength of the alloy, but also stabilize the expansion coefficient of the alloy, reduces the segregation and shrinkage hole phenomenon, and further improves the strength of the alloy.

This invention discloses a metal flux-cored welding wire for wind turbines, comprising flux powder and a welding sheath. The flux powder is composed of the following components: Ni: 58%-80%, Cr: 10%-16%, Mo: 4%-12%, Nb: 1%-3%, Fe: 2%-14%, C: 0.1%-0.2%, Mn: 0.2%-0.5%, Si: 0.2%-0.5%, with the sum of the mass percentages of the above components being 100%. The welding sheath is made of Inconel 718 alloy strip. This invention also discloses a method for preparing and applying the metal flux-cored welding wire for wind turbines. This invention solves the problem of pitting corrosion and abrasive wear on the surface of high-speed gears in existing wind turbines, particularly in environments with high corrosion resistance requirements, such as offshore and desert environments with high wear resistance requirements, resulting in corrosion pits and wear microcracks.

The invention discloses a ceramic reinforced Inconel 718 double-hopper laser surfacing welding device, and relates to the technical field of metal material machining, and the ceramic reinforced Inconel 718 double-hopper laser surfacing welding device comprises a mounting box, two independent storage boxes, a proportion adjusting mechanism, an extrusion feeding mechanism and an online mixing mechanism. The opening number of the feeding holes is accurately controlled according to the particle sizes of the ceramic particles and the Inconel 718 powder, and high-precision adjustment of the feeding proportion of the two materials is achieved; a stepping motor is arranged to drive a cam to intermittently extrude powder, so that the problem of unsmooth feeding caused by poor flowability of ceramic and metal powder is effectively solved; meanwhile, the stirring plates are synchronously driven by the transmission part, the materials are uniformly mixed before entering a surfacing area, and the problems of ceramic phase thermal decomposition, low interface bonding strength, non-uniform structure and the like caused by misalignment of matching, unstable feeding and non-uniform mixing in the laser surfacing process are solved through the synergistic effect of the structures.

This invention relates to the field of integrated molding in the low-to-intermediate temperature range of aero-engines, specifically to a method for constructing a "sandwich structure" to prevent cracking. This invention combines laser-directed energy deposition technology with gradient structure transition design. Through precise control of process parameters and synchronous powder feeding from multiple powder bins, a dual-interface "sandwich structure" of "TC4 matrix - gradient transition structure - Inconel 718 material" can be successfully constructed, achieving integrated molding of heterogeneous materials. The "sandwich structure" designed in this invention can alleviate stress concentration caused by drastic compositional changes, reduce cracking tendency, achieve good metallurgical bonding between TC4 and Inconel 718, and solve problems such as easy cracking failure and poor load-bearing capacity in heterogeneous material connections. This invention features a reasonable structural design, a simple and controllable manufacturing process, and produces a product with excellent performance, facilitating industrial application.

The application relates to the technical field of metal plate composite technology and discloses a preparation process of a Kovar alloy-copper composite plate, which comprises the following steps: a preparation process of an Invar alloy-copper composite plate, which comprises the following steps: s1, taking one Invar alloy plate and two copper plates; s2, immersing the Invar alloy plate into liquid copper after the Invar alloy plate is heated to 250-300 DEG C; s3, positioning the two copper plates and the Invar alloy plate to form a group of initial composite plate materials; s4, heating the whole in a heating furnace, the heating temperature is 700-850 DEG C, and the heating time is 20-40 min; s5, taking out and cooling to 500-650 DEG C, and then performing hot rolling; s6, performing stress relieving annealing on the composite blank; s7, naturally cooling to normal temperature after annealing, and cold rolling to form an Invar alloy-copper composite plate with a preset thickness. The Invar alloy-copper composite plate prepared through the process is more stable and not easy to separate between the plates, the composite plate has the physical properties of the Kovar alloy and good thermal conductivity.

The application discloses a method for improving hydrogen embrittlement resistance of iron-based superalloy by grain boundary regulation and application thereof. The application uses iron-based superalloy powder containing trace elements as raw material, and regulates hydrogen embrittlement resistance of the iron-based superalloy by laser powder bed melting process combined with vacuum sealing tube treatment and five-step heat treatment process. The first three steps are high-temperature heat treatment, and the last two steps are low-temperature heat treatment. The hydrogen embrittlement resistant iron-based superalloy obtained by the process has high strength and plasticity matching at room temperature and 600 DEG C, and has small elongation loss after hydrogen charging, and the hydrogen embrittlement resistance is significantly better than that of Inconel 718 nickel-based alloy. The process regulates the grain boundary type and element distribution in the alloy through multi-stage synergistic regulation, not only significantly improves the comprehensive mechanical properties of the material, but also endows the material with excellent hydrogen embrittlement resistance, can effectively meet the strict requirements of liquid hydrogen rocket engine nozzle and key parts of aviation system on high reliability, long service life and extreme environment adaptability, and has wide application prospect.

The present application belongs to the technical field of numerical simulation of laser directed energy deposition, and relates to a numerical simulation method for the influence of process parameters on the temperature field of laser directed energy deposition of Inconel 718. When calculating the transient temperature field distribution in the process of laser directed energy deposition, the present application needs to complete the definition of material properties, the establishment of a geometric model and mesh division, the establishment of a transient temperature field control equation, the application of a heat source, the application of initial conditions and boundary conditions, the discrete processing of a transient temperature field finite element equation set, latent heat processing, and iterative solving of several parts of work. The numerical simulation method of the present application studies the temperature distribution law in the process of laser directed energy deposition of Inconel 718 material, analyzes the influence of process parameters on the temperature field, establishes and perfects the theoretical basis of laser directed energy deposition of Inconel 718 material, and guides the formulation of process parameters, which has important scientific research significance and engineering application value.

The present application belongs to the technical field of high-temperature alloy smelting production, and particularly relates to a method for improving the as-cast solidification quality of Inconel718 high-temperature alloy and an alloy ingot thereof. The method comprises: short-time ultrahigh-temperature treatment of completely melted alloy at 1550-1600 DEG C and falling back to pouring temperature to realize melt purification and activation; then, a nickel-magnesium-molybdenum intermediate alloy with specific components is put in, and the magnesium content is accurately controlled in the range of 0.0040%-0.080%; finally, stepwise treatment of rapid cooling and isothermal holding is carried out in the critical temperature range of 1350-1380 DEG C. Through the synergistic effect of physical purification, chemical alloying and solidification control, the primary dendrite arm spacing is significantly refined, the Laves phase and MC carbide are in fine granular and dispersed distribution, and the as-cast structure uniformity is fundamentally improved, thereby providing a reliable solution for obtaining high-performance Inconel718 alloy ingot.

The invention provides a non-standard Inconel 718 alloy super-long forged material and a manufacturing method thereof, and the manufacturing method comprises the following steps: preparing an electrode bar through vacuum induction melting, and carrying out electroslag remelting to obtain an electroslag ingot with the diameter of 500 + / -20 mm; carrying out homogenization heat preservation on the electroslag ingot at 1140-1200 DEG C for not less than 120 hours; after being cogged and deformed into square billets, the square billets are forged into round bars with the diameter phi being 180 + / -10 mm and the length being larger than 12000 mm through a high-speed forging machine within the single heating number, and the finish forging temperature is controlled to be larger than or equal to 980 DEG C so as to restrain delta phase precipitation; and then solid solution and aging heat treatment is conducted, the solid solution temperature is 1000 + / -10 DEG C, the aging temperature is 700 + / -10 DEG C, and solid solution for 2-4 hours and aging heat preservation for 6-8 hours are matched to meet the requirement for cross section through burning and structure consistency. The super-long forging material prepared by the method is uniform in chemical component, low in magnification and free of macroscopic defects, carbides in a high-magnification structure are uniformly distributed and free of Laves phases, the room-temperature mechanical property and the intergranular corrosion property can be comprehensively matched, and the method is suitable for manufacturing super-long high-temperature alloy forging materials with non-standard performance requirements.

The invention discloses a nickel base alloy polishing method and device based on photocatalysis-photothickening synergy. An integrated dual-light system synchronously triggers photocatalytic workpiece surface modification and light-triggered polishing solution thickening, and dual-drive machining of surface softening and medium thickening is achieved. The composite abrasive particles loaded with the TiO2 / ZnO photocatalyst are adopted, a low-hardness oxide layer is formed on the surface of the nickel-based alloy under ultraviolet irradiation, and the machining resistance is reduced; the accurate regulation and control of the viscosity of the polishing solution are realized through azobenzene / cinnamic acid photochromic molecules, and a double-thickening system is formed by cooperating with shear-induced particle aggregation, so that the viscosity stability is improved. According to the invention, the technical problems of work hardening of the nickel-based alloy, large viscosity fluctuation of a traditional shear thickening polishing solution and poor processing uniformity are solved, the processing efficiency and the workpiece surface quality are improved, and the method is suitable for efficient precision processing of Inconel 718, GH4169 and other difficult-to-process nickel-based alloys.

The application relates to the technical field of metal coating preparation, in particular to an integrated preparation method of a high-densification nickel-based alloy surface high-temperature corrosion-resistant coating. Inconel 718 powder is used as raw material, a nickel-based component is printed on a substrate, and then AlSi10Mg powder is used as raw material to print an AlSi10Mg layer on the obtained printed nickel-based component; a printed product is obtained. The printed product is sequentially subjected to two heat treatments, and a product is obtained; the first heat treatment is solid solution treatment at a temperature of 1050-1150 DEG C, and the second heat treatment is aging treatment at a temperature of 700-750 DEG C. The obtained product has excellent heat corrosion resistance, the preparation method is simple and controllable, and the product is convenient for industrial application.

The application provides a heating method for improving the thermal plasticity of inconel alloy and application thereof, wherein the heating method comprises the following steps: a first heating stage: inconel alloy continuous casting billets are heated to the lower limit temperature of the corresponding Curie temperature range at a first heating rate; a second heating stage: the inconel alloy continuous casting billets treated in the first heating stage are heated to the upper limit temperature of the corresponding Curie temperature range at a second heating rate; the second heating rate is less than the first heating rate; a third heating stage: the inconel alloy continuous casting billets treated in the second heating stage are heated to the holding temperature of 1150-1300 DEG C at the first heating rate and are held. The application slows down the heating of the inconel alloy continuous casting billets by the relatively low second heating rate, slows down the volume expansion rate of the inconel alloy continuous casting billets, and further reduces the internal stress of the inconel alloy continuous casting billets and the possibility of micro-crack generation, so that the thermal plasticity of the inconel alloy continuous casting billets is improved.

The application provides an Inconel 617 nickel-based alloy suitable for additive manufacturing and having good mechanical properties and a preparation method thereof. The Inconel 617 nickel-based alloy suitable for additive manufacturing and having good mechanical properties has a component range expressed in atomic percentage, and the component range includes: Ni 50.0-60.0%, Cr 20.0-24.0%, Co 10.0-14.0%, Mo 8.0-10.0%, Al 0.6-1.5%, X 0.01-10%, wherein X is one or more of Ti, Fe, Cu, Mn, C and Si. The application controls the content and proportion of key elements of the Inconel 617 alloy, optimizes the solidification characteristics, phase transformation behavior and thermal physical properties of the alloy, significantly improves the additive manufacturing process window of the alloy and inhibits crack generation. The solid solution elements such as Cr, Co and Mo can effectively distort the crystal lattice, hinder the dislocation movement, enhance the deformation resistance, improve the yield strength and tensile strength of the matrix and thus improve the density and mechanical properties of the alloy.

The invention discloses a high-temperature-resistant rare earth Inconel nickel-based alloy and a preparation method thereof.The Inconel nickel-based alloy is modified through rare earth yttrium, used materials are carbon, manganese, silicon, copper, iron, chromium, nickel and rare earth yttrium, the purity of the materials reaches 99.99%, a surface oxidation film of the rare earth Inconel nickel-based alloy is of a double-layer structure, the outer layer of the surface oxidation film is composed of a mixed layer of NiO, (Cr, Fe, Mn and Ni) 3O4 and Fe2O3, and the inner layer of the surface oxidation film is continuous and compact Cr2O3. And by adding Y, selective oxidation of chromium is enhanced, so that formation of a compact inner layer of Cr2O3 and spinel oxide is promoted, diffusion of alloy elements and oxygen elements is inhibited, the adhesive force between an alloy matrix and an oxidation film is improved, the corrosion resistance and the high temperature resistance of the alloy are improved, and the alloy can be applied to a new generation AHTR nuclear energy system and a reactor-hydrogen production factory system and has wide application prospects. The neutron irradiation resistance is realized.

This application provides an electropolishing method for Invar alloy substrates, specifically tailored to the surface characteristics of Invar alloy substrates thinned by ferric chloride reduction. The method involves using the Invar alloy substrate to be treated as the anode and a pure lead plate as the cathode, simultaneously immersing both the anode and cathode in an electrolytic tank containing an electrolyte for electropolishing. The electrolyte comprises phosphoric acid, sulfuric acid, malic acid, ethylene glycol, sodium dodecylbenzenesulfonate, and deionized water in a volume ratio of 6:1:1:1:0.5:0.5. Electropolishing the Invar alloy substrate thinned by ferric chloride using the above electrolyte composition and ratio yields an Invar alloy substrate with excellent surface quality. After polishing, the surface gloss of the Invar alloy substrate is increased to ≥92 GU, exhibiting a uniform and bright mirror-like effect.

The invention provides a manufacturing method of an Inconel 718 ring for a compressor, belongs to the technical field of manufacturing of nickel-based superalloy forgings, and solves the problems that an existing Inconel 718 ring for the compressor is not uniform in crystal grain and low in needle-shaped delta phase precipitation and mechanical property. The manufacturing method comprises the following steps that the defects of cracks, shrinkage cavities and sharp edges on the surface of an ingot body of a cast ingot are eliminated; brushing a high-temperature adhesive on the surface of the cast ingot without the defects, and adhering an aluminum silicate fiber blanket to the surface of the cast ingot; a fast forging machine is adopted for completing two-time upsetting and two-time drawing, the end face of a cast ingot blank forged through the fast forging machine is covered with an aluminum silicate fiber blanket, after preheating and heat preservation, the cast ingot blank is returned to a furnace for temperature compensation, after heat preservation, upsetting shaping and punching are conducted, after heat preservation, trestle broaching is adopted, and a ring rolling machine is adopted for ring rolling forming; and the ring piece is subjected to a solid solution and aging heat treatment process to obtain a finished product. According to the invention, the high-magnification structure of the Inconel718 ring product for the compressor is uniform isometric crystal, no laves phase exists in the structure, the delta phase is uniformly distributed in spherical and polygonal crystal grains, and the average grain size reaches 8.5 level.

Metal(s) (including various alloys, such as INCONEL® superalloys) are characterized by having carbon disposed within the metal lattice structure thereof. The carbon is primarily, or entirely, present at interstitial sites of the metal lattice, and may be present in amounts ranging from about 1.5 wt % to about 90 wt %. Carbon may be present in the form of graphene, which may be characterized as one or more coherent, planar layers of graphene. The carbon, moreover, forms non-polar covalent bonds with both metal atoms of the lattice and other carbon atoms present in the lattice. This facilitates substantially homogeneous dispersal of the carbon throughout the resultant material, conveying unique and advantageous properties such as strength-to-weight ratio, density, mechanical toughness, sheer strength, flex strength, hardness, anti-corrosiveness, electrical and / or thermal conductivity, etc. as described herein. In some approaches, the composition of matter may be powderized, or the powder may be pelletized.

The invention discloses a sintered flux for improving strip electrode submerged arc surfacing crack resistance of an Inconel 690 alloy and a preparation method of the sintered flux, and belongs to the technical field of flux preparation. The problem that the Inconel 690 alloy strip electrode submerged arc surfacing layer is high in hot crack sensitivity is solved. The flux comprises the following components: 5%-20% of CaF2, 20%-50% of Al2O3, 1%-10% of CaO, 3%-9% of manganese metal, 2%-5% of niobium metal, 2%-10% of micron-sized chromium oxide, 0.5%-2% of ferrosilicon alloy, and 5%-15% of K2O and Na2O. The melting point of the flux is 1100-1300 DEG C, the strip electrode submerged arc surfacing welding manufacturability is improved, the slag fluidity and the slag detachability are improved, the mechanical property of obtained deposited metal at the room temperature and the high temperature is excellent, and the requirement for the performance of an Inconel 690 alloy corrosion-resistant layer of nuclear power facility construction is met.

The application provides an inconel alloy foil and a preparation method thereof, and comprises the following steps: according to a preset alloy component ratio, feeding refined materials of each component of the alloy into a vacuum melting furnace to perform vacuum melting, and preparing a molten metal obtained by the vacuum melting into an inconel alloy cast strip with a target thickness through a plane flow casting process; cooling the plane flow cast inconel alloy extremely thin strip of the inconel alloy cast strip to room temperature under a protective atmosphere to obtain a room temperature cast strip; performing one rolling pass of cold finish rolling on the extremely thin strip of the room temperature cast strip through a rolling mill to obtain a semi-finished foil; and performing heat treatment on the semi-finished foil. The application can solve the problems in the prior art, such as a long and complicated process flow, a low yield, a waste of a large amount of resources and energy, poor uniformity of a prepared finished product, and poor mechanical properties.

The invention belongs to the technical field of alloy materials, and particularly relates to a surface modified titanium alloy and a preparation method and application thereof. The surface modified titanium alloy comprises a base body, a first transition layer, a second transition layer and a functional layer, wherein the first transition layer, the second transition layer and the functional layer are sequentially stacked on the surface of the base body. The base body is made of titanium alloy; the material for forming the first transition layer is a mixture of vanadium and first silicon; the material for forming the second transition layer is a mixture of chromium and second silicon; and the functional layer is made of an Inconel 718 alloy. The two transition layers are formed by the vanadium silicon and the chromium silicon, so that the titanium element in the matrix can be prevented from diffusing into the functional layer to generate a brittle and hard intermetallic compound, and the surface coating of the matrix is prevented from cracking; and meanwhile, the Inconel 718 functional layer has excellent high-temperature mechanical property, and the high-temperature tribological property of the titanium alloy base material is improved by means of the excellent high-temperature mechanical property of the Inconel 718 functional layer.

The invention discloses a novel high-temperature and high-pressure measurement-while-drilling system. Comprising a directional bolt, a suspension drill collar, a rotary valve pulser, a double-male centralizer, a centralizing ring, a battery tail wire, a battery cylinder short section, a battery cylinder, a high-temperature-resistant battery pack, an exploring tube short section, a lower plug, a protective cap, a wire pressing plate, a connecting seat, a circuit board buffer, a battery connecting end, a pressure-bearing outer cylinder, a main control short section, a directional sensor and a centralizer short section. The battery cylinder and the pressure-bearing outer cylinder are made of Inconel 718 materials, so that high temperature resistance of 200 DEG C and high pressure resistance of 172 MPa are ensured, and detonation can be prevented; the high-temperature-resistant battery pack provides power for the system; the rotary valve pulser generates pulse signals through drilling fluid, and parameters such as underground temperature and pressure are measured in real time. The directional sensor detects well track and stratum information; and the lower plug has an anti-blocking function. The device is suitable for a deep well high-temperature and high-pressure environment, and has the characteristics of simple structure, automatic measurement, safety and reliability.

The invention discloses a preparation method of a large ultra-long invar alloy flat material, which adopts a four-heating-number forging process, and specifically comprises the following steps: carrying out head riser pretreatment in a first fire, carrying out vertical ingot upsetting and octagonal shaping in a second fire, carrying out secondary vertical ingot upsetting and multi-surface drawing out in a third fire, and carrying out finished product forging in a fourth fire. Through cooperative control of segmented heating and forging, the bottleneck problem existing in the ultra-long specification forging process is solved, the large ultra-long invar alloy flat material with the weight reaching 25-30 t and the length larger than or equal to 11 m is obtained, and the forging quality and production efficiency of the large ultra-long invar alloy flat material are remarkably improved.

An abrasive article including a backing; a plurality of shaped abrasive particles overlying the backing; where the abrasive article further has: 1) a Swarf Mode Gray Value of less than 25 for cumulative material removed of at least 500 g according to the Inconel Grinding Swarf Color Test; 2) a Maximum Swarf Mode Gray Value of less than 25 for a cumulative material removal of not greater than 700 g according to the Inconel Grinding Swarf Color Test; or 3) a combination of 1) and 2).

Provided is a method for manufacturing a metal lamination-shaped article in which creep rupture strength satisfies a standard value in Inconel (registered trademark) 718 of a Ni-based alloy. A method for manufacturing a metal lamination-shaped article consisting of a Ni-based alloy includes: a homogenizing treatment step (1) of performing a homogenizing treatment on a metal lamination-shaped article consisting of the Ni-based alloy containing 50% by mass to 55% by mass of Ni, 17% by mass to 21% by mass of Cr, 2.8% by mass to 3.3% by mass of Mo, 4.75% by mass to 5.5% by mass of a total of Nb and Ta, 0.65% by mass to 1.15% by mass of Ti, 0.2% by mass to 0.8% by mass of Al, and the remainder consisting of Fe and inevitable impurities at 1,050°C or higher and 1,250°C or lower; a solutionizing treatment step (2) of performing a solutionizing treatment on the metal lamination-shaped article after the homogenizing treatment step (1); and an aging step (3) of performing an aging treatment at 650°C or higher and 720°C or lower after the solutionizing treatment step (2).