CN113977135A - Iron-based amorphous flux-cored welding rod for surfacing anti-crack and wear-resistant alloy on surface of squeeze roller/grinding roller - Google Patents
Iron-based amorphous flux-cored welding rod for surfacing anti-crack and wear-resistant alloy on surface of squeeze roller/grinding roller Download PDFInfo
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- 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
- B23K35/3053—Fe as the principal constituent
- B23K35/308—Fe as the principal constituent with Cr as next major constituent
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- 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
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
- B23K35/0266—Rods, electrodes, wires flux-cored
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- 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
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Abstract
The invention belongs to the field of welding materials, and particularly relates to an iron-based amorphous flux-cored welding rod for surfacing anti-cracking wear-resistant alloy on the surface of a squeeze roller/grinding roller. The iron-based amorphous core wire is completely melted during surfacing, partial amorphous/nanocrystalline can be formed, and the hardness of the surfacing alloy is effectively improved; the nano strontium titanate powder, the nano niobium powder, the aluminum-antimony intermediate alloy powder and the copper-beryllium intermediate alloy powder are melted with the surface layer of the matrix to form crystals, and the amorphous/nano crystals and the crystals are uniformly distributed and combined together, so that the toughness and the crack resistance of the surfacing alloy are greatly improved. The surfacing alloy provided by the invention has the advantages of high hardness, good toughness and strong crack resistance, and does not crack in the use process after surfacing on the surface of the squeeze roller/grinding roller, so that the service cycle of the squeeze roller/grinding roller is effectively prolonged.
Description
Technical Field
The invention belongs to the technical field of welding materials, and particularly relates to an iron-based amorphous flux-cored welding rod for surfacing anti-cracking wear-resistant alloy on the surface of a squeeze roller/grinding roller.
Background
With the development of modern industrial technology, new materials are continuously developed, as is well known, all materials only have use value when forming structural parts, welding is the most direct and most convenient way for forming the structural parts, welding materials are also important components in the welding technology, and the development of high-performance welding materials is an important task in the field of material forming.
The abrasion is one of the main reasons causing mechanical failure, such as squeeze rolls/grinding rolls of cement plants and mills of thermal power plants, and the like, and the abrasion is huge because the squeeze rolls/grinding rolls cannot be continuously used due to local abrasion and damage in the using process. The surfacing technology is a common surface modification and repair method, and the special alloy is surfaced on the surface of the squeeze roller/grinding roller, so that the hardness of the special alloy can be improved, the wear resistance of the special alloy can be enhanced, and the service life of the squeeze roller/grinding roller can be prolonged.
Chinese patent CN103128463B provides a wear-resistant and corrosion-resistant iron-based amorphous surfacing electrode and a preparation method thereof (application date 2013, 3, 14 days), wherein the core wire of the electrode is Fe with the diameter of 2-5mm41Co7Cr15Mo14C15B6Y2The (atomic percent) iron-based amorphous alloy has good welding manufacturability, easy arc striking, good arc stability, small splashing, easy slag removal, good forming of the surfacing layer, no generation of defects such as air holes, cracks and the like, and excellent wear resistance and corrosion resistance. The Chinese patent CN103128421B filed by the applicant of the patent on the same day provides a preparation method of an iron-based amorphous/nanocrystalline composite coating, which is also used for obtaining a large amount of iron-based amorphous/nanocrystalline on a surfacing layer; the main inventor of the patent also publishes a paper of organization and performance research of arc surfacing iron-based amorphous/nanocrystalline composite coating (functional material 19070-19 pages 2014) and elaborates the surfacing alloy layerThe volume fraction of the medium amorphous phase is at least 41.16%. However, the technical scheme has the defects that: after a large amount of amorphous substances are generated, the hardness of the surfacing layer is increased, although the surfacing layer is crack-free in the initial state, the surfacing layer is easy to crack in the using process (due to the reason that the toughness is reduced while the hardness is increased), and after the surfacing layer is used for a short time after surfacing of a squeeze roller/grinding roller and the like, part of the surfacing layer cracks and then falls off in a flaky shape, so that the service life of the squeeze roller/grinding roller is greatly shortened.
Chinese patent CN105499826B provides a self-protecting tubular welding wire with high amorphous nanocrystalline (application date 2015, 12 months and 18 days), which adopts a mode of stainless steel band wrapping the core powder to build up a deposited metal layer containing high amorphous nanocrystalline. As can be seen from the examples of this patent: the volume fraction of amorphous phase in the surfacing alloy layer is 46% at least, and the hardness of the surfacing alloy layer reaches more than HRC 69. But still does not solve the problems that after the surfacing welding of the surfaces of the squeeze roller/grinding roller and the like, part of the surfaces cracks and then fall off in a flaky shape after being used for a short time, and the service life of the squeeze roller/grinding roller is greatly shortened. The applicant also applies for a Chinese patent CN102275049A, provides an amorphous structured surfacing flux-cored wire (application date 2011, 8 and 1), obtains an amorphous coating, also has the problem that the coating cannot crack when being used after surfacing of the surface of a squeeze roller/grinding roller, and is not suitable for surfacing of the squeeze roller/grinding roller with a wear-resistant layer requiring larger thickness due to small coating thickness.
In addition, the squeeze roll/grinding roll is a rotating dynamic process in work, the surface wear of the squeeze roll/grinding roll is different from the sliding wear commonly borne, and the biggest problem is that the squeeze roll/grinding roll requires high hardness and certain toughness, so that the squeeze roll/grinding roll is wear-resistant and is not easy to crack.
How to utilize the wear resistance of amorphous/nanocrystalline and make the amorphous/nanocrystalline have certain toughness and crack resistance, and a wear-resistant layer with long service cycle is formed on the surface of a squeeze roller/grinding roller by overlaying, which is a priority of the work of technicians in the field.
Disclosure of Invention
The invention aims to provide an iron-based amorphous flux-cored welding rod for surfacing anti-cracking wear-resistant alloy on the surface of a squeeze roller/grinding roller, which solves the following technical problems: the iron-based amorphous welding rod is improved, so that the alloy after surfacing on the surface of a squeeze roller/grinding roller has high hardness (good wear resistance) and good toughness (good crack resistance and no cracking in the using process).
In order to solve the technical problems, the invention adopts the following technical scheme:
the iron-based amorphous flux-cored welding rod for the anti-crack and wear-resistant alloy in surface surfacing of the squeeze roller/grinding roller comprises an iron-based amorphous welding core, flux-cored powder and a flux coating, wherein the iron-based amorphous welding core is in a round tube shape, the flux-cored powder is filled in the iron-based amorphous welding core, and the flux coating is uniformly wrapped outside the iron-based amorphous welding core.
The iron-based amorphous core wire adopts Fe41Co7Cr15Mo14C15B6Y2And (4) preparing the iron-based amorphous alloy.
The medicine core powder comprises the following chemical components in percentage by mass: 12-16% of nano strontium titanate powder, 15-18% of aluminum-antimony intermediate alloy powder, 16-20% of copper-beryllium intermediate alloy powder and the balance of nano niobium powder.
The mass ratio of the iron-based amorphous core wire to the flux-cored powder is 1: 1, and the outer diameter of the iron-based amorphous core wire is 3.2mm-8.0mm, preferably 4.0mm-7.0 mm.
The coating comprises the following chemical components in percentage by mass: 6-8% of calcium fluoride, 7-10% of rutile, 5-7% of potassium feldspar, 5-8% of sodium carbonate, 12-15% of FeMn78C8.0 high-carbon ferromanganese, 5-8% of ferrosilicon, 7-9% of mica and the balance of calcium carbonate.
FeMn78C8.0 high-carbon ferromanganese is adopted, and the characteristic of high carbon content of the ferromanganese can be utilized to generate more niobium carbide hard phases, so that the hardness of the surfacing alloy is improved.
Furthermore, the particle size of the nano strontium titanate powder is 50nm-80 nm.
Furthermore, the particle size of the nano niobium powder is 50nm-80 nm.
Further, the grain size of the aluminum-antimony master alloy powder is 200-400 meshes.
Further, the particle size of the copper-beryllium intermediate alloy powder is 200-400 meshes.
The coating mass coefficient of the coating is 0.50-0.60.
The preparation steps of the iron-based amorphous flux-cored welding rod for the anti-crack and wear-resistant alloy surfacing on the surface of the squeeze roller/grinding roller of the invention are as follows:
calculating the mass of the powder of the core according to the proportion of the powder of the core → calculating the mass of the iron-based amorphous core → calculating the wall thickness according to the specification of the outer diameter of the iron-based amorphous core → preparing the iron-based amorphous core → loading the uniformly mixed powder of the core into the iron-based amorphous core → coating the coating on the iron-based amorphous core by a press coater → drying at 180 ℃ -200 ℃ for 1h-1.5 h.
The invention has the following beneficial technical effects:
1. the hardness of the surfacing alloy is high: fe during build-up welding41Co7Cr15Mo14C15B6Y2The iron-based amorphous core wire (atomic percentage) is completely melted, the cooling speed of a welding pool can be controlled by controlling the welding current, partial amorphous/nanocrystalline (completely disordered/short-range ordered or medium-range ordered) and partial crystalline (long-range ordered) can be formed, the amorphous/nanocrystalline is uniformly distributed in the surfacing alloy, and the hardness of the surfacing alloy is effectively improved.
2. The surfacing alloy has good toughness and does not crack in the using process: melting nanometer strontium titanate powder, nanometer niobium powder, aluminum-antimony intermediate alloy powder and copper-beryllium intermediate alloy powder with the surface layer of a matrix to form crystals (long-range order), combining amorphous in the surfacing alloy, uniformly distributing and combining the amorphous/nanocrystalline and the crystals together, and greatly improving the toughness and crack resistance of the surfacing alloy due to the existence of titanium, strontium, aluminum, antimony, copper and beryllium; the electric arc is a mobile power supply during welding, in order to generate partial amorphous/nanocrystalline during surfacing, the welding heat input value is small, so the solidification speed of a molten pool is accelerated, and partial strontium titanate powder and niobium powder are not melted in time; and the heat input value is small during surfacing, but the aluminum-antimony intermediate alloy powder and the copper-beryllium intermediate alloy powder with low melting points are adopted, so that the two alloy powders can be completely melted, the phenomenon that part of particles are not melted and solidified and then exist as inclusions is avoided, and the toughness and the crack resistance of the surfacing alloy are improved.
3. The surfacing alloy provided by the invention has the advantages of high hardness, good toughness and strong crack resistance, and does not crack in the use process after surfacing on the surface of the squeeze roller/grinding roller, so that the service cycle of the squeeze roller/grinding roller is effectively prolonged. Experiments show that: the minimum hardness of the surfacing alloy is 71HRC (generally not more than 65HRC), the minimum value of impact absorption energy is 19J (generally not more than 9J), the service cycle of each 1mm wear-resistant layer of the squeeze roller/grinding roller is increased to 800h (generally not more than 200h), and the service cycle of the squeeze roller/grinding roller is effectively prolonged.
Drawings
FIG. 1 is a sectional view of the iron-based amorphous flux-cored electrode for the anti-cracking and wear-resistant alloy deposited on the surface of the squeeze roller/grinding roller according to the present invention, taken along the vertical length direction.
In the figure: 1. an iron-based amorphous core wire; 2. powder of the medicine core; 3. coating with medicinal herbs.
Detailed Description
The invention is further illustrated by the following examples, without restricting its scope to the specific embodiments.
Example 1:
an iron-based amorphous flux-cored welding rod for anti-cracking and wear-resistant alloy surfacing on the surface of a squeeze roller/grinding roller comprises an iron-based amorphous welding core 1, flux-cored powder 2 and a flux coating 3, wherein the iron-based amorphous welding core 1 is in a round tube shape, the flux-cored powder 2 is filled in the iron-based amorphous welding core 1, and the flux coating 3 is uniformly wrapped outside the iron-based amorphous welding core 1.
Fe-based amorphous core wire adopting Fe41Co7Cr15Mo14C15B6Y2And preparing the iron-based amorphous alloy, wherein the outer diameter of the iron-based amorphous welding core is 3.2 mm.
The medicine core powder comprises the following chemical components in percentage by mass: 12% of nano strontium titanate powder, 15% of AlSb10 aluminum-antimony intermediate alloy powder, 16% of CuBe-1 copper-beryllium intermediate alloy powder and the balance of nano niobium powder.
The mass ratio of the iron-based amorphous core wire to the powder of the flux core is 1: 1.
The coating comprises the following chemical components in percentage by mass: 6% of calcium fluoride, 7% of rutile, 5% of potassium feldspar, 5% of sodium carbonate, 12% of FeMn78C8.0 high-carbon ferromanganese, 5% of ferrosilicon, 7% of mica and the balance of calcium carbonate.
The grain size of the nanometer strontium titanate powder is 50nm-80 nm.
The grain diameter of the nano niobium powder is 50nm-80 nm.
The grain diameter of the AlSb10 aluminum-antimony master alloy powder is 200 meshes-400 meshes.
The particle size of the CuBe-1 copper beryllium intermediate alloy powder is 200 meshes-400 meshes.
The mass coefficient of the coating is 0.5.
The preparation steps are as follows: preparing an iron-based amorphous core wire according to the specification requirement → filling the uniformly mixed powder of the core wire into the iron-based amorphous core wire → coating the coating on the iron-based amorphous core wire by a press coater → drying for 1.5h at 180 ℃.
Example 2:
an iron-based amorphous flux-cored welding rod for anti-cracking and wear-resistant alloy surfacing on the surface of a squeeze roller/grinding roller comprises an iron-based amorphous welding core 1, flux-cored powder 2 and a flux coating 3, wherein the iron-based amorphous welding core 1 is in a round tube shape, the flux-cored powder 2 is filled in the iron-based amorphous welding core 1, and the flux coating 3 is uniformly wrapped outside the iron-based amorphous welding core 1.
Fe-based amorphous core wire adopting Fe41Co7Cr15Mo14C15B6Y2And preparing the iron-based amorphous alloy, wherein the outer diameter of the iron-based amorphous welding core is 5.0 mm.
The medicine core powder comprises the following chemical components in percentage by mass: 14 percent of nano strontium titanate powder, 16.5 percent of AlSb10 aluminum-antimony intermediate alloy powder, 18 percent of CuBe-1 copper-beryllium intermediate alloy powder and the balance of nano niobium powder.
The mass ratio of the iron-based amorphous core wire to the powder of the flux core is 1: 1.
The coating comprises the following chemical components in percentage by mass: 7% of calcium fluoride, 8.5% of rutile, 6% of potassium feldspar, 6.5% of sodium carbonate, 13.5% of FeMn78C8.0 high-carbon ferromanganese, 6.5% of ferrosilicon, 8% of mica and the balance of calcium carbonate.
The grain size of the nanometer strontium titanate powder is 50nm-80 nm.
The grain diameter of the nano niobium powder is 50nm-80 nm.
The grain diameter of the AlSb10 aluminum-antimony master alloy powder is 200 meshes-400 meshes.
The particle size of the CuBe-1 copper beryllium intermediate alloy powder is 200 meshes-400 meshes.
The mass coefficient of the coating is 0.55.
The preparation steps are as follows: preparing an iron-based amorphous tube (core wire) according to the specification requirement → filling the uniformly mixed powder of the core wire into the iron-based amorphous core wire → coating the coating on the iron-based amorphous core wire by a coating press → drying at 180 ℃ for 1.5 h.
Example 3:
an iron-based amorphous flux-cored welding rod for anti-cracking and wear-resistant alloy surfacing on the surface of a squeeze roller/grinding roller comprises an iron-based amorphous welding core 1, flux-cored powder 2 and a flux coating 3, wherein the iron-based amorphous welding core 1 is in a round tube shape, the flux-cored powder 2 is filled in the iron-based amorphous welding core 1, and the flux coating 3 is uniformly wrapped outside the iron-based amorphous welding core 1.
Fe-based amorphous core wire adopting Fe41Co7Cr15Mo14C15B6Y2And preparing the iron-based amorphous alloy, wherein the outer diameter of the iron-based amorphous welding core is 8.0 mm.
The medicine core powder comprises the following chemical components in percentage by mass: 16% of nano strontium titanate powder, 18% of AlSb10 aluminum-antimony intermediate alloy powder, 20% of CuBe-1 copper-beryllium intermediate alloy powder and the balance of nano niobium powder.
The mass ratio of the iron-based amorphous core wire to the powder of the flux core is 1: 1.
The coating comprises the following chemical components in percentage by mass: 8% of calcium fluoride, 10% of rutile, 7% of potassium feldspar, 8% of sodium carbonate, 15% of FeMn78C8.0 high-carbon ferromanganese, 8% of ferrosilicon, 9% of mica and the balance of calcium carbonate.
The grain size of the nanometer strontium titanate powder is 50nm-80 nm.
The grain diameter of the nano niobium powder is 50nm-80 nm.
The grain diameter of the AlSb10 aluminum-antimony master alloy powder is 200 meshes-400 meshes.
The particle size of the CuBe-1 copper beryllium intermediate alloy powder is 200 meshes-400 meshes.
The mass coefficient of the coating is 0.60.
The preparation steps are as follows: preparing an iron-based amorphous core wire according to the specification requirement → filling the uniformly mixed powder of the core wire into the iron-based amorphous core wire → coating the coating on the iron-based amorphous core wire by a press coater → drying for 1.5h at 180 ℃.
Comparative example 1:
an iron-based amorphous welding rod for surfacing anti-crack and wear-resistant alloy on the surface of a squeeze roller/grinding roller comprises an iron-based amorphous welding core (solid core) and a coating, wherein the coating is uniformly wrapped outside the iron-based amorphous welding core.
Fe-based amorphous welding core (solid core) is made of Fe41Co7Cr15Mo14C15B6Y2And preparing the iron-based amorphous alloy, wherein the diameter of the iron-based amorphous welding core is 5.0 mm.
The coating comprises the following chemical components in percentage by mass: 7% of calcium fluoride, 8.5% of rutile, 6% of potassium feldspar, 6.5% of sodium carbonate, 13.5% of FeMn78C8.0 high-carbon ferromanganese, 6.5% of ferrosilicon, 8% of mica and the balance of calcium carbonate.
The mass coefficient of the coating is 0.55.
The preparation steps are as follows: preparing an iron-based amorphous core wire according to the specification requirement → coating the coating on the iron-based amorphous core wire by a press coater → drying for 1.5h at 180 ℃.
Comparative example 2:
basically the same as example 2, except that the nano strontium titanate powder is not contained in the core powder.
Comparative example 3:
basically the same as example 2, except that the nano strontium titanate powder in the powder core is changed into micron strontium titanate powder.
Comparative example 4:
the difference is that the nano niobium powder in the powder core is changed into reduced iron powder, which is basically the same as the example 2.
Comparative example 5:
the difference is that the nano niobium powder in the powder core is changed into micron niobium powder, which is basically the same as the embodiment 2.
Comparative example 6:
essentially the same as example 2, except that the core powder is free of AlSb10 Al-Sb master alloy powder.
Comparative example 7:
basically the same as example 2, except that the AlSb10 aluminum antimony master alloy powder in the powder core was replaced by aluminum powder and antimony powder of the corresponding mass.
Comparative example 8:
the same as example 2 except that no CuBe-1 copper beryllium master alloy powder was present in the powder core.
Comparative example 9:
the method is basically the same as the example 2, except that CuBe-1 copper beryllium intermediate alloy powder in the medicine core powder is replaced by copper powder and beryllium powder with corresponding mass.
Comparative example 10:
essentially the same as example 2, except that the high carbon ferromanganese in the coating was replaced by a corresponding mass of femn78c2.0 medium carbon ferromanganese.
Comparative example 11: the wear-resistant corrosion-resistant iron-based amorphous surfacing electrode is prepared according to the method of embodiment 1 of Chinese patent CN 103128463B.
Comparative example 12: an iron-based amorphous surfacing electrode is prepared according to the method of embodiment 1 of Chinese patent CN 103128421B.
Comparative example 13: the high amorphous nanocrystalline self-protecting tubular welding wire is prepared according to the method of embodiment 3 of Chinese patent CN 105499826B.
Comparative example 14: the amorphous structured surfacing flux-cored wire is prepared according to the method of embodiment 1 of Chinese patent CN 102275049A.
Comparative example 15: the high-bonding-force nano amorphous spraying welding wire is prepared according to the method of embodiment 3 of Chinese patent CN 102284804A.
The welding rods (wires) obtained in the examples and the comparative examples are used for surface overlaying of the squeeze roller, the welding current is 130A-140A, the welding voltage is 25-28V, and the welding speed is 1.3-1.4 mm/s.
And measuring the hardness and impact absorption energy of the overlaying layer, and carrying out a production working condition abrasion experiment on the overlaying extrusion roller. Examples and comparative examples 10 experiments were performed for each example and the average of 10 results was taken.
The results of the examples and comparative examples are shown in Table 1.
TABLE 1
Note: the wear-resistant layer service time refers to the service time of the extrusion roller during production after the wear-resistant alloy is deposited.
From the comparative examples and examples it can be seen that:
1) the welding rod prepared by the technical scheme of the invention has the advantages of high hardness, good toughness and strong crack resistance of the surfacing alloy, does not crack in the use process after surfacing on the surface of the squeeze roller/grinding roller, and has long service time of the wear-resistant layer of the squeeze roller.
2) Comparative example 1 is a non-crystalline solid core electrode, the weld overlay has high hardness but poor toughness, is prone to cracking during use after being subjected to surfacing on the surface of a squeeze roller/grinding roller, and has short service time of a wear-resistant layer of the squeeze roller.
3) Comparative examples 2 to 9 all changed some technical characteristics of the present invention, the hardness was not greatly reduced, but the toughness was poor, the surface of the squeeze roll/grinding roll was easily cracked in the using process after the build-up welding, and the service time of the wear-resistant layer of the squeeze roll was short. The technical characteristics of all parts of the invention are mutually supported and matched to achieve the beneficial effects of the invention, and the comprehensive effect of the composition is the core creation of the invention rather than the key effect of adding one substance.
4) The comparative example 10 has the advantages of low carbon content in the coating, little carbide formed in the surfacing alloy, large reduction of hardness, small reduction of toughness, difficult cracking after surfacing on the surface of the squeeze roller/grinding roller and long service time of the wear-resistant layer of the squeeze roller.
5) Comparative examples 11 to 15 each formed an amorphous wear-resistant layer, and the weld overlay had high hardness but poor toughness, and was susceptible to cracking during use after weld overlay on the squeeze roll/grinding roll surface, and the wear-resistant layer of the squeeze roll had a short service life.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (6)
1. The iron-based amorphous flux-cored welding rod for the anti-crack wear-resistant alloy is characterized by comprising an iron-based amorphous welding core (1), flux-cored powder (2) and a flux coating (3), wherein the iron-based amorphous welding core (1) is in a round tube shape, the flux-cored powder (2) is filled in the iron-based amorphous welding core (1), and the flux coating (3) is uniformly wrapped outside the iron-based amorphous welding core (1);
the iron-based amorphous welding core (1) adopts Fe41Co7Cr15Mo14C15B6Y2Preparing an iron-based amorphous alloy;
the medicine core powder (2) comprises the following chemical components in percentage by mass: 12-16% of nano strontium titanate powder, 15-18% of aluminum-antimony intermediate alloy powder, 16-20% of copper-beryllium intermediate alloy powder and the balance of nano niobium powder;
the mass ratio of the iron-based amorphous core wire (1) to the powder core (2) is 1: 1.
2. The iron-based amorphous flux-cored welding rod for the anti-crack and wear-resistant alloy formed by surfacing on the surface of the squeeze roller/grinding roller according to claim 1, wherein the flux-cored welding rod comprises the following chemical components in percentage by mass: 6-8% of calcium fluoride, 7-10% of rutile, 5-7% of potassium feldspar, 5-8% of sodium carbonate, 12-15% of FeMn78C8.0 high-carbon ferromanganese, 5-8% of ferrosilicon, 7-9% of mica and the balance of calcium carbonate.
3. The iron-based amorphous flux-cored electrode for the anti-cracking wear-resistant alloy on the surface of the squeeze roller/grinding roller according to claim 1, wherein the outer diameter of the iron-based amorphous core wire (1) is 3.2mm to 8.0mm, preferably 4.0mm to 7.0 mm.
4. The iron-based amorphous flux-cored welding rod for the anti-cracking and wear-resistant alloy on the surface of the squeeze roller/grinding roller in the surfacing welding process according to claim 1, wherein the particle size of the nano strontium titanate powder is 50nm-80nm, and the particle size of the nano niobium powder is 50nm-80 nm.
5. The iron-based amorphous flux-cored welding rod for the anti-crack and wear-resistant alloy on the surface of the squeeze roller/grinding roller in the surfacing welding process according to claim 1, wherein the particle size of the aluminum-antimony master alloy powder is 200-400 meshes.
6. The iron-based amorphous flux-cored welding electrode for the anti-crack and wear-resistant alloy on the surface of the squeeze roller/grinding roller according to any one of claims 1 to 6, wherein the particle size of the copper-beryllium intermediate alloy powder is 200 to 400 meshes.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4337886A (en) * | 1979-04-09 | 1982-07-06 | United Technologies Corporation | Welding with a wire having rapidly quenched structure |
| CN101116932A (en) * | 2007-09-07 | 2008-02-06 | 武汉铁锚焊接材料股份有限公司 | Wolfram carbine abrasion-proof core deposit welding rod |
| CN101817125A (en) * | 2009-02-27 | 2010-09-01 | 北京赛亿表面工程技术有限公司 | Method for preparing amorphous abrasion-resistant surfacing coat |
| CN102275049A (en) * | 2011-08-01 | 2011-12-14 | 江西恒大高新技术股份有限公司 | Amorphously structured overlaying flux cored welding wire |
| CN103128463A (en) * | 2013-03-14 | 2013-06-05 | 西南石油大学 | Abrasion-resistant and corrosion-resistant iron-based amorphous surfacing welding electrode and manufacturing method thereof |
| CN203330589U (en) * | 2013-05-09 | 2013-12-11 | 常州市五星铝化厂 | Efficient welding rod |
| JP2017191700A (en) * | 2016-04-13 | 2017-10-19 | 株式会社オートネットワーク技術研究所 | Insulated wire and method for producing the same |
| CN113352022A (en) * | 2021-06-07 | 2021-09-07 | 郑州大学 | Welding rod easy to prepare and capable of accurately controlling weld metal alloying |
-
2021
- 2021-11-22 CN CN202111383086.7A patent/CN113977135B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4337886A (en) * | 1979-04-09 | 1982-07-06 | United Technologies Corporation | Welding with a wire having rapidly quenched structure |
| CN101116932A (en) * | 2007-09-07 | 2008-02-06 | 武汉铁锚焊接材料股份有限公司 | Wolfram carbine abrasion-proof core deposit welding rod |
| CN101817125A (en) * | 2009-02-27 | 2010-09-01 | 北京赛亿表面工程技术有限公司 | Method for preparing amorphous abrasion-resistant surfacing coat |
| CN102275049A (en) * | 2011-08-01 | 2011-12-14 | 江西恒大高新技术股份有限公司 | Amorphously structured overlaying flux cored welding wire |
| CN103128463A (en) * | 2013-03-14 | 2013-06-05 | 西南石油大学 | Abrasion-resistant and corrosion-resistant iron-based amorphous surfacing welding electrode and manufacturing method thereof |
| CN203330589U (en) * | 2013-05-09 | 2013-12-11 | 常州市五星铝化厂 | Efficient welding rod |
| JP2017191700A (en) * | 2016-04-13 | 2017-10-19 | 株式会社オートネットワーク技術研究所 | Insulated wire and method for producing the same |
| CN113352022A (en) * | 2021-06-07 | 2021-09-07 | 郑州大学 | Welding rod easy to prepare and capable of accurately controlling weld metal alloying |
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