CN104249225A - Nickel-based high-temperature alloy welding powder and preparation method thereof as well as special equipment - Google Patents
Nickel-based high-temperature alloy welding powder and preparation method thereof as well as special equipment Download PDFInfo
- Publication number
- CN104249225A CN104249225A CN201410250689.3A CN201410250689A CN104249225A CN 104249225 A CN104249225 A CN 104249225A CN 201410250689 A CN201410250689 A CN 201410250689A CN 104249225 A CN104249225 A CN 104249225A
- Authority
- CN
- China
- Prior art keywords
- molten steel
- preparation
- welding powder
- nickel
- base superalloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
- B23K35/0244—Powders, particles or spheres; Preforms made therefrom
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3033—Ni as the principal constituent
- B23K35/304—Ni as the principal constituent with Cr as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/055—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 20% but less than 30%
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The invention discloses nickel-based high-temperature alloy welding powder and a preparation method thereof as well as special equipment. The preparation method comprises the following steps of uniformly mixing raw materials of the nickel-based high-temperature alloy welding powder, performing vacuum smelting, casting to form an alloy ingot, then performing non-vacuum smelting to obtain liquid steel, pouring the liquid steel, performing gas atomization on the liquid steel, and screening particles obtained by gas atomization, so as to obtain the nickel-based high-temperature alloy welding powder of 80-625 meshes, wherein the temperature of the liquid steel before the liquid steel is poured is 1,600-1,700 DEG C, and the pressure for pouring the liquid steel is 8,000-9,000Pa; the non-vacuum smelting, the liquid steel pouring and the gas atomization are executed under the protection of liquid argon. According to the preparation method disclosed by the invention, on the premise of guaranteeing the quality, the production cost is lowered, and large-scale production is realized; the components and the performance indexes of the prepared nickel-based high-temperature alloy welding powder meet corresponding international standard requirements.
Description
Technical field
The present invention relates to a kind of nickel base superalloy welding powder, its preparation method and special equipment.
Background technology
Along with developing rapidly of the industry such as petrochemical industry, ocean engineering, the equipment be under high pressure-temperature and corrosion-resistant condition gets more and more, and the trend of oriented maximization, high parameter development, the preferred material of producing this kind equipment is stainless steel.If but all adopted stainless steel manufacture, cost would be higher.In order to reduce manufacturing cost, parts thereof adopts the manufacture of carbon steel class, use a kind of solder technology at equipment surface or inner wall overlaying (coated) one deck (2-5mm) nickel base superalloy welding powder, the corrosion-resistant of equipment can be reached and wait performance requirement.
Nickel base superalloy belongs to important resistant material, compare with common stainless steel and corrosion-resistant metal materials, have stronger resistance to various forms of corrosion and the ability of destruction, and possess good mechanical property and machining property, be especially suitable for the contemporary industry of media environment harshness.
Popularizing of the solder technology such as current PTA plasma arc powder surfacing, laser melting coating, supersonic spray coating both at home and abroad, particularly domestic market, needs the Ni-base Superalloy Powder that import is a large amount of every year.But the nickel base superalloy welding powder of domestic production end due to working condition and technique different, as non-vacuum melting, atomization, have that oxygen content is higher, Composition Control is improper, the defect that batch is little; As vacuum drying oven melting, atomization, there is production process equipment and control complicated defect; As plasma rotating electrode process produces powder, there is cost increases a lot of defects.Etc. present situation, cause needing the welding powder existing defects of surfacing part needs and cisco unity malfunction, therefore superalloy powder equal dependence on import for a long time.
Summary of the invention
Technical problem to be solved by this invention is the defect overcoming the long-term dependence on import of high temperature alloy welding powder of the prior art, and provides a kind of nickel base superalloy welding powder, its preparation method and special equipment.
The invention provides a kind of preparation method of nickel base superalloy welding powder; Described preparation method comprises the steps: the raw material of nickel base superalloy welding powder to mix, carry out vacuum melting, pour into alloy pig, carry out non-vacuum melting again and obtain molten steel, topple over molten steel and aerosolization is carried out to molten steel, the particle that aerosolization obtains is sieved, 80-625 object nickel base superalloy welding powder can be obtained; Wherein, described in topple over molten steel before the temperature of molten steel be 1600-1700 DEG C, described in topple over molten steel pressure be 8000-9000Pa; Described non-vacuum melting, described in topple over molten steel and described aerosolization and carry out under liquid argon protection.
In the present invention, the raw material of described nickel base superalloy welding powder is that this area is conventional, preferably comprise: element by percentage to the quality, carbon (C): 0.04% ~ 0.08%, chromium (Cr): 20.00% ~ 23.00%, molybdenum (Mo): 8.00% ~ 10.00%, niobium (Nb): 3.15% ~ 4.15%, silicon (Si): 0.05% ~ 0.40%, iron (Fe): 0.10% ~ 1.00%, surplus is nickel (Ni).
In the present invention, described niobium preferably adds with the form of NbFe87, and all the other elements add with the form of simple substance.Wherein, the purity of described carbon, chromium, molybdenum, silicon, iron and nickel is that this area is conventional.Wherein, the purity of described carbon is preferably 90.00% ~ 99.99%; And/or the purity of described chromium is preferably 99.0% ~ 99.9%; And/or the purity of described molybdenum is preferably 90.0% ~ 99.9%; And/or the purity of described silicon is preferably 90.0% ~ 99.9%; And/or the purity of described iron is preferably 90.00% ~ 99.99%; And/or the purity of described nickel is preferably 99.00% ~ 99.99%; Described percentage is the mass percent of the raw material total amount accounting for described nickel base superalloy welding powder.
Wherein, described NbFe87 refers to the alloy formed by niobium element and ferro element, and wherein, the mass percentage of niobium (Nb) is at least 87%.For the control of the content of niobium element and ferro element in raw material, first should be as the criterion with the content of niobium element and add NbFe87, and then need to judge whether to need extra supplementary iron simple substance according to the content of above-mentioned ferro element.
In the present invention, the equipment of described vacuum melting is preferably vaccum sensitive stove.The vacuum of described vaccum sensitive stove is preferably≤10Pa.The equipment of described non-vacuum melting is preferably non-vacuum induction furnace.
In the present invention, described topple over molten steel after, molten steel flow to atomizer, molten steel from be poured onto the time arriving atomizer and be no more than 10 seconds.
In the present invention, described aerosolization is in atomizer, with gas jet, the molten steel of melting is ground into the process of spherical powder.Wherein, the pressure of described gas jet is preferably 650-750Pa, is more preferably 700Pa; The gaseous species of described gas jet is preferably nitrogen; The jet direction of described gas jet preferably becomes the angle of 55 °-65 ° with direction when toppling over molten steel, is more preferably the angle of 60 °; During described aerosolization, the pressure of atomizer is preferably 900-1100Pa, is more preferably 1000Pa.
In the present invention, described when toppling over molten steel required negative pressure realize preferably by regulable control operator cashier's office in a shop.
In the present invention, the purity of described liquid argon (Ar) is that this area is conventional, and be preferably 99.999% ~ 100%, described percentage is mass percent.
In the present invention, the particle diameter of described nickel base superalloy welding powder is preferably 80-270 order and/or 270-625 order.
In the present invention, described in topple over the molten steel before molten steel temperature be preferably 1600-1650 DEG C, be more preferably 1630 DEG C, described in topple over molten steel pressure be preferably 8500-8700Pa, be more preferably 8600Pa.
In the present invention, described nickel base superalloy welding powder is spherical welding powder.
Present invention also offers a kind of nickel base superalloy welding powder obtained by above-mentioned preparation method.
Present invention also offers a kind of special equipment for the preparation of above-mentioned nickel base superalloy welding powder, described special equipment comprises the vaccum sensitive stove, a liquid argon proterctive equipment, a non-vacuum induction furnace, an atomizer and the screening machine that connect successively.
In the present invention, described vaccum sensitive stove is used for the raw material of melting nickel base superalloy welding powder; Described liquid argon proterctive equipment be used for for non-vacuum melting, topple over molten steel and aerosolization etc. operation liquid argon protection of the environment is provided; Described non-vacuum induction furnace is used for carrying out non-vacuum melting to molten steel; Described atomizer is used for molten steel aerosolization, to form spherical powder; It is 80-625 object specification that described screening machine is used for the ball-type powder sieving obtained.
On the basis meeting this area general knowledge, above-mentioned each optimum condition, can be combined, obtain the preferred embodiments of the invention.
Agents useful for same of the present invention and raw material are all commercially.
Positive progressive effect of the present invention is: preparation method of the present invention, under the prerequisite of ensuring the quality of products, reduces production cost, can be mass-produced; Composition and the performance indications of obtained nickel base superalloy welding powder meet corresponding international standard requirement.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the special equipment preparing nickel base superalloy welding powder in embodiment 1.
Detailed description of the invention
Mode below by embodiment further illustrates the present invention, but does not therefore limit the present invention among described scope of embodiments.The experimental technique of unreceipted actual conditions in the following example, conventionally and condition, or selects according to catalogue.
In following embodiment, aerosolization is the process with gas jet, the aluminium alloy stream of melting being ground into spherical powder.Wherein, the pressure of described gas jet is 700Pa; The gaseous species of described gas jet is nitrogen; The jet direction of described gas jet becomes the angle of 60 ° with direction when toppling over molten steel; During described aerosolization, the pressure of atomizer is 1000Pa.
In following embodiment, the equipment of described vacuum melting is vaccum sensitive stove.The vacuum of described vaccum sensitive stove is≤10Pa.
In following embodiment, described when toppling over molten steel required negative pressure realized by regulable control operator cashier's office in a shop.
Embodiment 1
The nickel base superalloy welding powder of the present embodiment, be made up of the component of following weight percentage: carbon (C): 0.06, chromium (Cr): 22.00, molybdenum (Mo): 9.00, niobium (Nb): 3.80, silicon (Si): 0.40, iron (Fe): 1.00, nickel (Ni): surplus.
The preparation method of described nickel base superalloy welding powder, comprise the steps: following component: carbon (C), chromium (Cr), molybdenum (Mo), niobium (Nb), silicon (Si), iron (Fe) and nickel (Ni) are by above-mentioned percentage proportioning, mixing, adopt vacuum melting, pour into alloy pig, carry out non-vacuum melting again, aerosolization while toppling over molten steel, screening, namely can be made into 80-270 order, the spherical welding powder of 270-625 object; Wherein, described in topple over molten steel before the temperature of molten steel be 1630 DEG C, described in topple over molten steel pressure be 8600Pa; Described non-vacuum melting, described in topple over molten steel and described aerosolization and carry out under liquid argon protection.
In said components, the quality purity of carbon (C) is 99.0%, and the quality purity of chromium (Cr) is 99.48%, and the quality purity of molybdenum (Mo) is 99.6%, the quality purity of silicon (Si) is 99.9%, and the purity of iron (Fe) is 99.8%; The quality purity of nickel (Ni) is 99.8%, and niobium (Nb) mixes with C, Cr, Mo, Si, Ni, Fe with the form of NbFe87.The purity of liquid argon (Ar) is 99.999%.
In the present embodiment, as shown in Figure 1, described special equipment comprises vaccum sensitive stove 1, liquid argon proterctive equipment 2, non-vacuum induction furnace 3, atomizer 4 and the screening machine 5 connected successively to the special equipment of described nickel base superalloy welding powder.
Wherein, described vaccum sensitive stove 1 is for the raw material of melting nickel base superalloy welding powder; Described liquid argon proterctive equipment 2 for for non-vacuum melting, topple over molten steel and aerosolization etc. operation liquid argon protection of the environment is provided; Described non-vacuum induction furnace 3 is for carrying out non-vacuum melting to molten steel; Described atomizer 4 for by molten steel aerosolization, to form spherical powder; Described screening machine 5 is 80-270 order for the ball-type powder sieving that will obtain, 270-625 object specification.
Embodiment 2
The nickel base superalloy welding powder of the present embodiment, be made up of the component of following weight percentage: carbon (C): 0.06, chromium (Cr): 23.00, molybdenum (Mo): 8.00, niobium (Nb): 3.15, silicon (Si): 0.05, iron (Fe): 0.10, nickel (Ni): surplus.
The preparation method of described nickel base superalloy welding powder, comprise the steps: following component: carbon (C), chromium (Cr), molybdenum (Mo), niobium (Nb), silicon (Si), iron (Fe) and nickel (Ni) are by above-mentioned percentage proportioning, mixing, adopt vacuum melting, pour into alloy pig, carry out non-vacuum melting again, aerosolization while toppling over molten steel, screening, namely can be made into 80-270 order, the spherical welding powder of 270-625 object; Wherein, described in topple over molten steel before the temperature of molten steel be 1600 DEG C, described in topple over molten steel pressure be 9000Pa; Described non-vacuum melting, described in topple over molten steel and described aerosolization and carry out under liquid argon protection.
In said components, the quality purity of carbon (C) is 99.0%, and the quality purity of chromium (Cr) is 99.48%, and the quality purity of molybdenum (Mo) is 99.6%, the quality purity of silicon (Si) is 99.9%, and the purity of iron (Fe) is 99.8%; The quality purity of nickel (Ni) is 99.8%, and niobium (Nb) mixes with C, Cr, Mo, Si, Ni, Fe with the form of NbFe87.The purity of liquid argon (Ar) is 99.999%.
Embodiment 3
The nickel base superalloy welding powder of the present embodiment, be made up of the component of following weight percentage: carbon (C): 0.06, chromium (Cr): 20.00, molybdenum (Mo): 10.00, niobium (Nb): 4.15, silicon (Si): 0.40, iron (Fe): 1.00, nickel (Ni): surplus.
The preparation method of described nickel base superalloy welding powder, comprise the steps: following component: carbon (C), chromium (Cr), molybdenum (Mo), niobium (Nb), silicon (Si), iron (Fe) and nickel (Ni) are by above-mentioned percentage proportioning, mixing, adopt vacuum melting, pour into alloy pig, carry out non-vacuum melting again, aerosolization while toppling over molten steel, screening, namely can be made into 80-270 order, the spherical welding powder of 270-625 object; Wherein, described in topple over molten steel before the temperature of molten steel be 1700 DEG C, described in topple over molten steel pressure be 8000Pa; Described non-vacuum melting, described in topple over molten steel and described aerosolization and carry out under liquid argon protection.
In said components, the quality purity of carbon (C) is 99.0%, and the quality purity of chromium (Cr) is 99.48%, and the quality purity of molybdenum (Mo) is 99.6%, the quality purity of silicon (Si) is 99.9%, and the purity of iron (Fe) is 99.8%; The quality purity of nickel (Ni) is 99.8%, and niobium (Nb) mixes with C, Cr, Mo, Si, Ni, Fe with the form of NbFe87.The purity of liquid argon (Ar) is 100%.
Embodiment 4
In the present embodiment, carbon (C): 0.04%, the purity of each component is: the quality purity of carbon (C) is 90.0%, the quality purity of chromium (Cr) is 90.0%, the quality purity of molybdenum (Mo) is 90.0%, the quality purity of silicon (Si) is 90.0%, and the purity of iron (Fe) is 90.00%; The quality purity of nickel (Ni) is 99.0%, and the purity of liquid argon (Ar) is 99.999%, and all the other process conditions, step and composition of raw materials are all with embodiment 1.
Embodiment 5
In the present embodiment, carbon (C): 0.08%, the purity of each component is: the quality purity of carbon (C) is 99.9%, the quality purity of chromium (Cr) is 99.9%, the quality purity of molybdenum (Mo) is 99.9%, the quality purity of silicon (Si) is 99.9%, and the purity of iron (Fe) is 99.99%; The quality purity of nickel (Ni) is 99.9%, and the purity of liquid argon (Ar) is 100%, and all the other process conditions, step and composition of raw materials are all with embodiment 1.
Comparative example 1
The nickel base superalloy welding powder of this comparative example, be made up of the component of following weight percentage: carbon (C): 0.06, chromium (Cr): 20.00, molybdenum (Mo): 10.00, niobium (Nb): 4.15, silicon (Si): 0.40, iron (Fe): 1.00, nickel (Ni): surplus.
The preparation method of described nickel base superalloy welding powder, comprise the steps: following component: carbon (C), chromium (Cr), molybdenum (Mo), niobium (Nb), silicon (Si), iron (Fe) and nickel (Ni) are by above-mentioned percentage proportioning, mixing, adopt vacuum melting, pour into alloy pig, carry out non-vacuum melting again, aerosolization while toppling over molten steel, screening, namely can be made into 80-270 order, the spherical welding powder of 270-625 object; Wherein, described in topple over molten steel before the temperature of molten steel be 1400 DEG C, described in topple over molten steel pressure be 5500Pa; Described non-vacuum melting, described in topple over molten steel and described aerosolization and carry out under liquid argon protection.
In said components, the quality purity of carbon (C) is 99.0%, and the quality purity of chromium (Cr) is 99.48%, and the quality purity of molybdenum (Mo) is 99.6%, the quality purity of silicon (Si) is 99.9%, and the purity of iron (Fe) is 99.8%; The quality purity of nickel (Ni) is 99.8%, and niobium (Nb) mixes with C, Cr, Mo, Si, Ni, Fe with the form of NbFe87.The purity of liquid argon (Ar) is 99.999%.
During this comparative example nickel base superalloy welding powder processed, be topple over molten steel when molten steel temperature is 1400 DEG C, wherein the molten steel of 2/3 is not atomized, and is trapped in leting slip a remark, and the molten steel flowing through atomizer is only the molten steel of remaining 1/3.Visible, time not within the scope of the temperature and pressure of toppling over molten steel that the present invention is particularly limited to, the atomization that cannot realize ideal, welding powder is globulate not, cannot meet the demands.
Comparative example 2
The nickel base superalloy welding powder of this comparative example, be made up of the component of following weight percentage: carbon (C): 0.06, chromium (Cr): 20.00, molybdenum (Mo): 10.00, niobium (Nb): 4.15, silicon (Si): 0.40, iron (Fe): 1.00, nickel (Ni): surplus.
The preparation method of described nickel base superalloy welding powder, comprise the steps: following component: carbon (C), chromium (Cr), molybdenum (Mo), niobium (Nb), silicon (Si), iron (Fe) and nickel (Ni) are by above-mentioned percentage proportioning, mixing, adopt vacuum melting, pour into alloy pig, carry out non-vacuum melting again, aerosolization while toppling over molten steel, screening, namely can be made into 80-270 order, the spherical welding powder of 270-625 object; Wherein, described in topple over molten steel before the temperature of molten steel be 1630 DEG C, described in topple over molten steel pressure be 8600Pa; Described non-vacuum melting, described in topple over molten steel not liquid argon protection under carry out.
In said components, the quality purity of carbon (C) is 99.0%, and the quality purity of chromium (Cr) is 99.48%, and the quality purity of molybdenum (Mo) is 99.6%, the quality purity of silicon (Si) is 99.9%, and the purity of iron (Fe) is 99.8%; The quality purity of nickel (Ni) is 99.8%, and niobium (Nb) mixes with C, Cr, Mo, Si, Ni, Fe with the form of NbFe70.
The nickel base superalloy welding powder oxygen content that this comparative example obtains is 0.057%, and carbon content is 0.29%, cannot meet the demands.
Comparative example 3
The nickel base superalloy welding powder of this comparative example, be made up of the component of following weight percentage: carbon (C): 0.06, chromium (Cr): 20.00, molybdenum (Mo): 10.00, niobium (Nb): 4.15, silicon (Si): 0.40, iron (Fe): 1.00, nickel (Ni): surplus.
The preparation method of described nickel base superalloy welding powder, comprise the steps: following component: carbon (C), chromium (Cr), molybdenum (Mo), niobium (Nb), silicon (Si), iron (Fe) and nickel (Ni) are by above-mentioned percentage proportioning, mixing, carry out non-vacuum melting, aerosolization while toppling over molten steel, screening, namely can be made into 80-270 order, the spherical welding powder of 270-625 object; Wherein, described in topple over molten steel before the temperature of molten steel be 1630 DEG C, described in topple over molten steel before pressure be 8600Pa; Described non-vacuum melting, described in topple over molten steel and described aerosolization and carry out under liquid argon protection.
In said components, the quality purity of carbon (C) is 99.0%, and the quality purity of chromium (Cr) is 99.48%, and the quality purity of molybdenum (Mo) is 99.6%, the quality purity of silicon (Si) is 99.9%, and the purity of iron (Fe) is 99.8%; The quality purity of nickel (Ni) is 99.8%, and niobium (Nb) mixes with C, Cr, Mo, Si, Ni, Fe with the form of NbFe87.The purity of liquid argon (Ar) is 99.999%.
The oxygen content of the nickel base superalloy welding powder that this comparative example obtains is 0.10%, and carbon content is 0.032%, and iron content is 4.24%, oxygen content and iron content higher, cannot meet the demands.
Effect example 1
This effect example analyzes the technical indicator of nickel base superalloy welding powder that the present invention obtains and its like product, in table 1.Wherein, international standard (standard code: AWS A5.14) has done following regulation: C (%): Max=0.10% to the carbon content of this series products.
The technical indicator testing result of the nickel base superalloy welding powder that table 1 embodiment 1 is obtained
Note: above-mentioned test data detects by inspection center of Shanghai material institute
In addition, the nickel base superalloy welding powder that the present invention obtains also has the advantage of good corrosion resistance.Require in international standard AWS A5.14 that the maximum of the percentage composition of iron (Fe) is 5.00%, the present invention is not more than 1.00% by the strict percentage composition controlling iron (Fe) in pulp furnish, cooperation vacuum melting technique is combined with non-vacuum melting technique, can prevent the nickel base superalloy welding powder be made up of raw material in use due to welding parameter arrange improper, the percentage composition of iron Fe in the composition of layer is increased, is even greater than 5.00%.
Claims (10)
1. the preparation method of a nickel base superalloy welding powder; Described preparation method comprises the steps: the raw material of nickel base superalloy welding powder to mix, carry out vacuum melting, pour into alloy pig, carry out non-vacuum melting again and obtain molten steel, topple over molten steel and aerosolization is carried out to molten steel, the particle that aerosolization obtains is sieved, 80-625 object nickel base superalloy welding powder can be obtained; Wherein, described in topple over molten steel before the temperature of molten steel be 1600-1700 DEG C, described in topple over molten steel pressure be 8000-9000Pa; Described non-vacuum melting, described in topple over molten steel and described aerosolization and carry out under liquid argon protection.
2. preparation method as claimed in claim 1, it is characterized in that, the raw material of described nickel base superalloy welding powder comprises: by percentage to the quality, carbon: 0.04% ~ 0.08%, chromium: 20.00% ~ 23.00%, molybdenum: 8.00% ~ 10.00%, niobium: 3.15% ~ 4.15%, silicon: 0.05% ~ 0.40%, iron: 0.10% ~ 1.00%, surplus is nickel.
3. preparation method as claimed in claim 1, is characterized in that, described topple over molten steel after, molten steel flow to atomizer, molten steel from be poured onto the time arriving atomizer and be no more than 10 seconds.
4. preparation method as claimed in claim 1, it is characterized in that, the equipment of described vacuum melting is vaccum sensitive stove; The equipment of described non-vacuum melting is non-vacuum induction furnace.
5. preparation method as claimed in claim 4, it is characterized in that, the vacuum of described vaccum sensitive stove is≤10Pa.
6. preparation method as claimed in claim 1, it is characterized in that, described aerosolization is in atomizer, with gas jet, the molten steel of melting is ground into the process of spherical powder; Wherein, the pressure of described gas jet is 650-750Pa; The gaseous species of described gas jet is nitrogen; The jet direction of described gas jet becomes the angle of 55 °-65 ° with direction when toppling over molten steel; During described aerosolization, the pressure of atomizer is 900-1100Pa.
7. preparation method as claimed in claim 1, it is characterized in that, the particle diameter of described nickel base superalloy welding powder is 80-270 order and/or 270-625 order.
8. preparation method as claimed in claim 1, is characterized in that, described in topple over molten steel before the temperature of molten steel be 1600-1650 DEG C; Described pressure of toppling over molten steel is 8500-8700Pa.
9. the nickel base superalloy weldering obtained by the preparation method described in any one of claim 1-8.
10. the special equipment for the preparation of nickel base superalloy welding powder according to claim 9; it is characterized in that, described special equipment comprises the vaccum sensitive stove, a liquid argon proterctive equipment, a non-vacuum induction furnace, an atomizer and the screening machine that connect successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410250689.3A CN104249225B (en) | 2014-06-06 | 2014-06-06 | Nickel base superalloy welding powder, its preparation method and special equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410250689.3A CN104249225B (en) | 2014-06-06 | 2014-06-06 | Nickel base superalloy welding powder, its preparation method and special equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104249225A true CN104249225A (en) | 2014-12-31 |
| CN104249225B CN104249225B (en) | 2017-12-26 |
Family
ID=52184661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410250689.3A Active CN104249225B (en) | 2014-06-06 | 2014-06-06 | Nickel base superalloy welding powder, its preparation method and special equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104249225B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107309090A (en) * | 2017-06-29 | 2017-11-03 | 西安欧中材料科技有限公司 | Electrostatic separation removes the method and device of high temperature alloy spherical powder nonmetal inclusion |
| CN107760930A (en) * | 2017-12-07 | 2018-03-06 | 山西鑫盛激光技术发展有限公司 | A kind of semiconductor laser deposited nickel-base alloy powder end for being used to repair centrifugation ball milling pipe die inwall |
| CN108220639A (en) * | 2018-02-11 | 2018-06-29 | 浦江县杰浩进出口有限公司 | A kind of advanced superalloys material production technology equipment |
| CN109317864A (en) * | 2018-12-06 | 2019-02-12 | 衢州学院 | A kind of preparation method and applications technique of nickel base powder brazing material |
| CN110977245A (en) * | 2019-12-31 | 2020-04-10 | 江苏新华合金有限公司 | Nickel-chromium-molybdenum alloy welding wire for ball valve surfacing and process preparation method thereof |
| CN112775589A (en) * | 2021-01-14 | 2021-05-11 | 有研工程技术研究院有限公司 | Preparation method of high-purity narrow-particle-size nickel-based brazing filler metal alloy powder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103045909A (en) * | 2013-01-06 | 2013-04-17 | 沈阳黎明航空发动机(集团)有限责任公司 | Preparation method of NiCrAlYSi powder spraying material |
| CN103056352A (en) * | 2012-12-04 | 2013-04-24 | 中国人民解放军装甲兵工程学院 | High-entropy alloy powder material for supersonic spraying and manufacturing method thereof |
| CN103071945A (en) * | 2012-12-25 | 2013-05-01 | 浙江科技学院 | Nickel-based solder used for welding diamond and preparation method for nickel-based solder |
| US20130156627A1 (en) * | 2009-08-20 | 2013-06-20 | Nasa Glenn Research Center | Compositions comprising nickel-titanium, methods manufacture thereof and articles comprising the same |
| CN103233221A (en) * | 2013-04-17 | 2013-08-07 | 武汉点金激光科技有限公司 | Concrete pump vehicle wear plate surface ceramic powder clad layer and laser cladding method thereof |
| CN103774135A (en) * | 2013-12-31 | 2014-05-07 | 武汉团结点金激光科技有限公司 | Process for manufacturing novel hearth roll collar with laser clad composite coating |
-
2014
- 2014-06-06 CN CN201410250689.3A patent/CN104249225B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130156627A1 (en) * | 2009-08-20 | 2013-06-20 | Nasa Glenn Research Center | Compositions comprising nickel-titanium, methods manufacture thereof and articles comprising the same |
| CN103056352A (en) * | 2012-12-04 | 2013-04-24 | 中国人民解放军装甲兵工程学院 | High-entropy alloy powder material for supersonic spraying and manufacturing method thereof |
| CN103071945A (en) * | 2012-12-25 | 2013-05-01 | 浙江科技学院 | Nickel-based solder used for welding diamond and preparation method for nickel-based solder |
| CN103045909A (en) * | 2013-01-06 | 2013-04-17 | 沈阳黎明航空发动机(集团)有限责任公司 | Preparation method of NiCrAlYSi powder spraying material |
| CN103233221A (en) * | 2013-04-17 | 2013-08-07 | 武汉点金激光科技有限公司 | Concrete pump vehicle wear plate surface ceramic powder clad layer and laser cladding method thereof |
| CN103774135A (en) * | 2013-12-31 | 2014-05-07 | 武汉团结点金激光科技有限公司 | Process for manufacturing novel hearth roll collar with laser clad composite coating |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107309090A (en) * | 2017-06-29 | 2017-11-03 | 西安欧中材料科技有限公司 | Electrostatic separation removes the method and device of high temperature alloy spherical powder nonmetal inclusion |
| CN107760930A (en) * | 2017-12-07 | 2018-03-06 | 山西鑫盛激光技术发展有限公司 | A kind of semiconductor laser deposited nickel-base alloy powder end for being used to repair centrifugation ball milling pipe die inwall |
| CN108220639A (en) * | 2018-02-11 | 2018-06-29 | 浦江县杰浩进出口有限公司 | A kind of advanced superalloys material production technology equipment |
| CN109317864A (en) * | 2018-12-06 | 2019-02-12 | 衢州学院 | A kind of preparation method and applications technique of nickel base powder brazing material |
| CN110977245A (en) * | 2019-12-31 | 2020-04-10 | 江苏新华合金有限公司 | Nickel-chromium-molybdenum alloy welding wire for ball valve surfacing and process preparation method thereof |
| CN110977245B (en) * | 2019-12-31 | 2022-03-04 | 江苏新华合金有限公司 | Process preparation method of nickel-chromium-molybdenum alloy welding wire for ball valve surfacing |
| CN112775589A (en) * | 2021-01-14 | 2021-05-11 | 有研工程技术研究院有限公司 | Preparation method of high-purity narrow-particle-size nickel-based brazing filler metal alloy powder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104249225B (en) | 2017-12-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104249225A (en) | Nickel-based high-temperature alloy welding powder and preparation method thereof as well as special equipment | |
| CN102719708A (en) | Laser-cladding high-toughness high-hardness nickel-base alloy powder and preparation method thereof | |
| CN102912188A (en) | Laser cladding nickel-based alloy powder and preparation method thereof | |
| CN102899664A (en) | Laser cladding alloy powder and preparation method thereof | |
| CN101381868A (en) | High-hardness stainless steel alloy powder for laser remelted and technique of preparing the same | |
| CN102912189A (en) | Laser-cladding cobalt-based alloy powder and method for preparing same | |
| CN108161275B (en) | Nickel-based alloy weld structure grain refinement method and application thereof | |
| CN101187022A (en) | Laser cladding Co-based alloy powder for conductor roll | |
| CN104131281A (en) | Simple iron-based laser cladding powder and preparation method for cladding layer | |
| CN108690946B (en) | Spray welding powder material and preparation method and application thereof | |
| CN104233282B (en) | A kind of Co-based alloy powder repaired for wheel disc of turbocharger of internal combustion engine | |
| CN102560197A (en) | Alloy powder for high-temperature marine corrosion resistant thermal spraying and preparation method thereof | |
| CN105642905A (en) | Plasma preparation method for nickel-based alloy spherical powder | |
| CN109351957A (en) | Laser melting coating iron(-)base powder and preparation method thereof | |
| CN106119603A (en) | A kind of anti-corrosive alloy material | |
| CN104120424A (en) | Iron-based laser cladding powder and method for preparing cladding layer using same | |
| CN102162079A (en) | Low-oxygen-content high-yield spherical aluminum bronze alloy powder for thermal spraying and preparation method thereof | |
| CN112317753A (en) | Preparation method of spherical nickel-based high-temperature alloy powder for 3D printing | |
| CN105671544B (en) | The method for improving 42CrMo steel anti-wear performances in laser melting coating using cladding powder | |
| CN104353840B (en) | A kind of LED inexpensive lead-free solder alloy powders and preparation method thereof | |
| CN108057964B (en) | Sintered flux for submerged arc welding of nickel-based filament | |
| CN105624472A (en) | Nickel-based high-temperature alloy powder for 3D printing and preparation method for nickel-based high-temperature alloy powder | |
| CN110616354A (en) | Nickel-based high-temperature alloy powder for laser near-net shaping and preparation method and application thereof | |
| CN110919016A (en) | Method for preparing laser cladding powder by using stainless steel leftover material | |
| CN111975241B (en) | Nickel-manganese-chromium-cobalt-boron alloy brazing filler metal powder and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |