CN112223569A - Wear-resistant wire-cutting composite wire and preparation method thereof - Google Patents
Wear-resistant wire-cutting composite wire and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a wear-resistant wire-electrode cutting composite wire, which is prepared by solidifying a wear-resistant composite layer on the surface of a wear-resistant steel wire; the wear-resistant steel wire is prepared from the following components in percentage by weight: 0.4% -0.7%, Si: 0.2-0.4%, Sr: 0.03% -0.08%, Mn: 0.4% -0.6%, Hf: 0.05% -0.08%, Nb: 0.01% -0.04%, Tc: 0.01-0.03%, Mo: 0.2-0.4%, Cr: 0.4% -0.8%, Se: 0.001 to 0.003 percent of Fe and inevitable impurities as the rest; the wear-resistant composite layer is prepared from the following raw materials in parts by weight: 40-50 parts of hyperbranched sulfonated polyether ether ketone, 2-4 parts of ferrocenyl metal organic framework, 5-8 parts of surface modified boron nitride quantum dot/nano boron fiber composite, 1-2 parts of phosphorus pentoxide, 6-10 parts of 2-chloroethyl 4-fluorophenylsulfone ionized modified N, N' -sulfuryl diimidazole and 1-2 parts of 3-triethoxysilylpropyltrimethylammonium chloride. The wear-resistant wire-electrode cutting composite wire provided by the invention has the advantages of excellent wear resistance, high wear resistance fastness, high cutting efficiency and good performance stability.
Description
Technical Field
The invention relates to the technical field of wire cutting, in particular to a wear-resistant wire-cutting composite wire and a preparation method thereof.
Background
With the development of economic society, the solar photovoltaic industry has gradually become one of new leading industries due to its green environmental protection. The silicon wafer is one of the commonly used components, which is produced by cutting a silicon ingot or a silicon rod, a large amount of wire-cut steel wires are used in the cutting process, the wire-cut steel wires are used as carriers of cutting mortar, and are indirectly abraded by a cutting medium silicon carbide in high-speed motion, and the wire diameter changes to influence the wire-cut quality. The amount of mortar carried by the wire-cut steel wire directly affects the cutting effect of the silicon block, so the quality of the wire-cut steel wire directly affects the efficiency of wire-cut and the product quality.
At present the wire-electrode cutting copper wire of generally used is ordinary copper wire, and this type of copper wire ubiquitous wearability is not high, and mechanical properties is limited, and the use amount is big, and cutting efficiency and the defect that the cutting cost is high, at cutting silicon rod in-process, the silicon carbide granule drops from the copper wire surface easily owing to lack the adhesive force, and the copper wire is gone into the line mouth at the silicon piece and can be aroused splashing of thick liquids, and then carries the cutting that comparatively few mortar participated in the silicon rod. The cutting method has the advantages that the steel wire is easy to wear in the process of cutting the silicon rod, the wire breakage is caused, the cutting capacity of the steel wire is greatly reduced, and in order to ensure the cutting quality, only more slurry can be added, so that the cutting cost is increased.
The chinese patent application No. 201710879547.7 discloses a composite wire for wire cutting, which includes a metal wire as a substrate and a wear-resistant resin layer coated on the outer surface of the metal wire, wherein the metal wire comprises the following chemical components in percentage by weight: 0.70-1.0, Cr: 0.20 to 0.40, Mn: 0.30 to 0.50, Zr: 0.15-0.20, W: 0.02-0.08%, Ca is less than or equal to 0.010%, B is less than or equal to 0.020%, N is less than or equal to 0.006%, and the balance of Fe and inevitable impurities, wherein the wear-resistant resin layer is prepared from the following raw materials: 15-25 parts of surface-modified chromium oxide, 30-60 parts of unsaturated resin, 10-15 parts of carbon fiber, 100-200 parts of tetrahydrofuran and 0.5-1 part of initiator. The composite wire for linear cutting and the preparation method thereof are provided by the invention, the composite wire has high wear resistance and cutting efficiency, large mortar carrying capacity and low cutting cost, and meets the performance requirements of the wire for multi-linear cutting. However, in the technical scheme, the carbon fibers used in the wear-resistant resin layer and the unsaturated resin have poor compatibility, the use effect is influenced, the bonding performance between the wear-resistant resin layer and the metal wire layer is poor, the layer is easy to detach in the use process, and the wear resistance and the weather resistance of the wire are required to be further improved.
Therefore, the wear-resistant wire-cutting composite wire material with excellent wear resistance, high wear resistance fastness, high tensile strength, high cutting efficiency and weather resistance, low cutting cost and good performance stability is developed, meets the market demand, has wide market value and application prospect, and has very important significance for promoting the development of multi-wire cutting technology. .
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a wear-resistant wire-electrode cutting composite wire which has excellent wear resistance, high wear resistance fastness, high tensile strength, high cutting efficiency and weather resistance, low cutting cost and good performance stability; meanwhile, the invention also provides a preparation method of the wear-resistant wire-cutting composite wire, which is simple and feasible, convenient to operate and control, low in preparation cost, high in preparation efficiency and suitable for continuous large-scale production.
In order to achieve the purpose, the invention adopts the technical scheme that the wear-resistant wire-cutting composite wire is characterized in that the wear-resistant wire-cutting composite wire is prepared by solidifying a wear-resistant composite layer on the surface of a wear-resistant steel wire; the wear-resistant steel wire is prepared from the following components in percentage by weight: 0.4% -0.7%, Si: 0.2-0.4%, Sr: 0.03% -0.08%, Mn: 0.4% -0.6%, Hf: 0.05% -0.08%, Nb: 0.01% -0.04%, Tc: 0.01-0.03%, Mo: 0.2-0.4%, Cr: 0.4% -0.8%, Se: 0.001 to 0.003 percent of Fe and inevitable impurities as the rest; the wear-resistant composite layer is prepared from the following raw materials in parts by weight: 40-50 parts of hyperbranched sulfonated polyether ether ketone, 2-4 parts of ferrocenyl metal organic framework, 5-8 parts of surface modified boron nitride quantum dot/nano boron fiber composite, 1-2 parts of phosphorus pentoxide, 6-10 parts of 2-chloroethyl 4-fluorophenylsulfone ionized modified N, N' -sulfuryl diimidazole and 1-2 parts of 3-triethoxysilylpropyltrimethylammonium chloride.
Preferably, the preparation method of the 2-chloroethyl 4-fluorophenyl sulfone ionized modified N, N' -sulfuryl diimidazole comprises the following steps: adding 2-chloroethyl 4-fluorophenyl sulfone and N, N '-sulfuryl diimidazole into an organic solvent, stirring and reacting for 4-6 hours at 50-70 ℃, then performing rotary evaporation to remove the solvent, washing with diethyl ether for 4-8 times, and then performing rotary evaporation to remove residual solvent and diethyl ether to obtain the 2-chloroethyl 4-fluorophenyl sulfone ionized modified N, N' -sulfuryl diimidazole.
Preferably, the molar ratio of the 2-chloroethyl 4-fluorophenyl sulfone to the N, N' -sulfuryl diimidazole to the organic solvent is 2:1 (10-16).
Preferably, the organic solvent is any one of dimethyl sulfoxide, dichloromethane, diethyl ether, ethyl acetate and acetone.
Preferably, the preparation method of the surface modified boron nitride quantum dot/nano boron fiber composite comprises the following steps: dispersing the boron nitride quantum dots and the nano boron fibers in ethanol, adding 3-triethoxysilylpropyltrimethylammonium chloride, and stirring and reacting at 50-70 ℃ for 6-8 hours to obtain the surface modified boron nitride quantum dot/nano boron fiber composite.
Preferably, the mass ratio of the boron nitride quantum dots, the nano boron fibers, the ethanol and the 3-triethoxysilylpropyltrimethylammonium chloride is 1 (4-6) to (25-35) to (0.1-0.3).
Preferably, the diameter of the nano boron fiber is 300-500nm, and the length-diameter ratio is (14-16): 1.
Preferably, the preparation method of the boron nitride quantum dot is described in chinese patent application No. 201910676300.4, example 1; the preparation method of the hyperbranched sulfonated polyether ether ketone is disclosed in Chinese patent application No. 201910120153.2, namely, example 1; the preparation method of the ferrocenyl metal-organic framework is disclosed in example 1 of the Chinese patent application No. 201910712718.6.
Preferably, the thickness of the wear-resistant composite layer is 5-15 μm, and the wire diameter of the wear-resistant steel wire is 70-230 μm.
Preferably, the preparation method of the wear-resistant steel wire comprises the following steps: mixing the components according to the weight percentage, casting the mixture into a casting blank, then carrying out heat treatment and hot rolling in sequence, coiling the hot-rolled casting blank in a temperature region of 850-1000 ℃ to form a crude product, and then keeping the temperature in a molten salt bath at 550-700 ℃ for 50-80 seconds; and performing controlled cooling treatment on the crude product, performing patenting treatment, and then drawing wires to form the wear-resistant steel wire.
Preferably, the temperature of the heat treatment is 1000-1200 ℃; the temperature of the hot rolling is 1000-1200 ℃; the patenting treatment temperature is cooled to 750 ℃ from 850 ℃, and the cooling speed is 20-30 ℃/s.
Another object of the present invention is to provide a method for preparing the wear-resistant wire-cutting composite wire, comprising the following steps: and (3) placing the wear-resistant steel wire in a mold cavity, uniformly mixing the raw materials of the wear-resistant composite layer, melting, injecting the melt into the mold cavity, cooling and solidifying, and demolding to obtain the wear-resistant wire-electrode cutting composite wire.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
(1) the preparation method of the wear-resistant wire-cutting composite wire rod provided by the invention is simple and feasible, convenient to operate and control, low in preparation cost, high in preparation efficiency and suitable for continuous large-scale production.
(2) The wear-resistant wire-electrode cutting composite wire overcomes the defects of low wear resistance, limited mechanical property, large using amount, high cutting efficiency and cutting cost and less slurry carrying of the traditional wire-electrode cutting wire, and the prepared wear-resistant wire-electrode cutting composite wire has excellent wear resistance, high wear resistance fastness, high tensile strength, high cutting efficiency and weather resistance, low cutting cost and good performance stability by adjusting the structure and the formula.
(3) The invention provides a wear-resistant wire-cutting composite wire, which is prepared from the following components in percentage by weight: 0.4% -0.7%, Si: 0.2-0.4%, Sr: 0.03% -0.08%, Mn: 0.4% -0.6%, Hf: 0.05% -0.08%, Nb: 0.01% -0.04%, Tc: 0.01-0.03%, Mo: 0.2-0.4%, Cr: 0.4% -0.8%, Se: 0.001 to 0.003 percent of Fe and inevitable impurities as the rest; through reasonable selection of all components and contents, the manufactured steel wire has better comprehensive performance, better wear resistance and mechanical strength.
(4) The invention provides a wear-resistant wire-cutting composite wire, which is prepared from the following raw materials in parts by weight: 40-50 parts of hyperbranched sulfonated polyether ether ketone, 2-4 parts of ferrocenyl metal organic framework, 5-8 parts of surface modified boron nitride quantum dot/nano boron fiber composite, 1-2 parts of phosphorus pentoxide, 6-10 parts of 2-chloroethyl 4-fluorophenylsulfone ionized modified N, N' -sulfuryl diimidazole and 1-2 parts of 3-triethoxysilylpropyltrimethylammonium chloride; on one hand, sulfonic groups on the hyperbranched sulfonated polyether ether ketone can be connected with quaternary ammonium salt cations on the surface modified boron nitride quantum dot/nano boron fiber composite and 3-triethoxysilylpropyltrimethylammonium chloride through ion exchange and imidazole cations on the 2-chloroethyl 4-fluorophenyl sulfone ionized modified N, N '-sulfuryl diimidazole through ion exchange, and simultaneously, under the catalytic action of phosphorus pentoxide, sulfonic groups on the hyperbranched sulfonated polyether ether ketone can be subjected to a crosslinking reaction with benzene rings on the ferrocenyl metal organic framework and the 2-chloroethyl 4-fluorophenyl sulfone ionized modified N, N' -sulfuryl diimidazole, so that all components are connected through chemical bonds, the material has excellent comprehensive performance, better weather resistance and wear resistance and better mechanical property, and the introduced ferrocenyl metal organic framework and 3-triethoxysilylpropyltrimethylammonium chloride are excellent in comprehensive performance, the compatibility between the wear-resistant steel wire layer and the wear-resistant composite layer can be improved; the addition of the boron nitride quantum dot/nano boron fiber composite can effectively improve the wear resistance; the addition of the 2-chloroethyl 4-fluorophenyl sulfone ionized modified N, N' -sulfuryl diimidazole can improve the weather resistance and the carrying capacity of slurry.
(5) According to the wear-resistant wire-electrode cutting composite wire, the structure and the formula of each layer are reasonably selected, so that the manufactured composite wire can effectively reduce the using amount of mortar and the wear condition of the wire, the cutting speed of a workbench is improved, saw marks on the surface of a cut material are reduced, the problem of surface thickness deviation of the cut material is reduced, the cutting quality of the cut material is improved, the cutting cost of the cut material is reduced, the wear-resistant wire-electrode cutting composite wire is a green and environment-friendly wire-electrode cutting consumable material with low cost, the wear resistance is high, the wire diameter is uniform, and the tensile strength is high.
Detailed Description
The following detailed description of preferred embodiments of the invention will be made.
The invention will be further described with reference to specific examples, but the scope of the invention is not limited thereto; the preparation method of the boron nitride quantum dot is disclosed in example 1 of the Chinese patent with application number 201910676300.4; the preparation method of the hyperbranched sulfonated polyether ether ketone is disclosed in Chinese patent application No. 201910120153.2, namely, example 1; the preparation method of the ferrocenyl metal-organic framework is disclosed in example 1 of Chinese patent application No. 201910712718.6; all other materials involved were purchased commercially.
Example 1
Embodiment 1 provides a wear-resistant wire-cut composite wire, which is characterized in that the wire is manufactured by solidifying a wear-resistant composite layer on the surface of a wear-resistant steel wire; the wear-resistant steel wire is prepared from the following components in percentage by weight: 0.4%, Si: 0.2%, Sr: 0.03%, Mn: 0.4%, Hf: 0.05%, Nb: 0.01%, Tc: 0.01%, Mo: 0.2%, Cr: 0.4%, Se: 0.001%, and the balance of Fe and inevitable impurities; the wear-resistant composite layer is prepared from the following raw materials in parts by weight: 40 parts of hyperbranched sulfonated polyether ether ketone, 2 parts of ferrocenyl metal organic framework, 5 parts of surface modified boron nitride quantum dot/nano boron fiber composite, 1 part of phosphorus pentoxide, 6 parts of 2-chloroethyl 4-fluorophenylsulfone ionized modified N, N' -sulfuryl diimidazole and 1 part of 3-triethoxysilylpropyl trimethyl ammonium chloride.
The preparation method of the 2-chloroethyl 4-fluorophenyl sulfone ionized modified N, N' -sulfuryl diimidazole comprises the following steps: adding 2-chloroethyl 4-fluorophenyl sulfone and N, N '-sulfuryl diimidazole into an organic solvent, stirring and reacting for 4 hours at 50 ℃, then performing rotary evaporation to remove the solvent, washing with diethyl ether for 4 times, and then performing rotary evaporation to remove residual solvent and diethyl ether to obtain 2-chloroethyl 4-fluorophenyl sulfone ionized modified N, N' -sulfuryl diimidazole; the molar ratio of the 2-chloroethyl 4-fluorophenyl sulfone to the N, N' -sulfuryl diimidazole to the organic solvent is 2:1: 10; the organic solvent is dimethyl sulfoxide.
The preparation method of the surface modified boron nitride quantum dot/nano boron fiber composite comprises the following steps: dispersing boron nitride quantum dots and nano boron fibers in ethanol, adding 3-triethoxysilylpropyltrimethylammonium chloride, and stirring at 50 ℃ for reacting for 6 hours to obtain a surface modified boron nitride quantum dot/nano boron fiber composite; the mass ratio of the boron nitride quantum dots to the nano boron fibers to the ethanol to the 3-triethoxysilylpropyltrimethylammonium chloride is 1:4:25: 0.1; the diameter of the nano boron fiber is 300nm, and the length-diameter ratio is 14: 1.
The thickness of the wear-resistant composite layer is 5 micrometers, and the wire diameter of the wear-resistant steel wire is 70 micrometers.
The preparation method of the wear-resistant steel wire comprises the following steps: mixing the components according to the weight percentage, casting the mixture into a casting blank, then carrying out heat treatment and hot rolling in sequence, coiling the hot-rolled casting blank in a temperature region of 850 ℃ to form a crude product, and then keeping the temperature in a molten salt bath at 550 ℃ for 50 seconds; carrying out controlled cooling treatment on the crude product, carrying out patenting treatment, and then drawing wires to form a wear-resistant steel wire; the temperature of the heat treatment is 1000 ℃; the temperature of the hot rolling is 1000 ℃; the patenting treatment temperature is cooled from 850 ℃ to 750 ℃, and the cooling speed is 20 ℃/s.
The preparation method of the wear-resistant wire-cutting composite wire comprises the following steps: and (3) placing the wear-resistant steel wire in a mold cavity, uniformly mixing the raw materials of the wear-resistant composite layer, melting, injecting the melt into the mold cavity, cooling and solidifying, and demolding to obtain the wear-resistant wire-electrode cutting composite wire.
Example 2
Embodiment 2 provides a wear-resistant wire-cut composite wire, which is characterized in that the wear-resistant wire-cut composite wire is manufactured by solidifying a wear-resistant composite layer on the surface of a wear-resistant steel wire; the wear-resistant steel wire is prepared from the following components in percentage by weight: 0.5%, Si: 0.25%, Sr: 0.04%, Mn: 0.45%, Hf: 0.06%, Nb: 0.02%, Tc: 0.015%, Mo: 0.25%, Cr: 0.5%, Se: 0.0015%, the balance being Fe and inevitable impurities; the wear-resistant composite layer is prepared from the following raw materials in parts by weight: 43 parts of hyperbranched sulfonated polyether ether ketone, 2.5 parts of ferrocenyl metal organic framework, 6 parts of surface modified boron nitride quantum dot/nano boron fiber composite, 1.2 parts of phosphorus pentoxide, 7 parts of 2-chloroethyl 4-fluorophenylsulfone ionized modified N, N' -sulfuryl diimidazole and 1.2 parts of 3-triethoxysilylpropyltrimethylammonium chloride.
The preparation method of the 2-chloroethyl 4-fluorophenyl sulfone ionized modified N, N' -sulfuryl diimidazole comprises the following steps: adding 2-chloroethyl 4-fluorophenyl sulfone and N, N '-sulfuryl diimidazole into an organic solvent, stirring and reacting for 4.5 hours at 55 ℃, then performing rotary evaporation to remove the solvent, washing with diethyl ether for 5 times, and then performing rotary evaporation to remove residual solvent and diethyl ether to obtain 2-chloroethyl 4-fluorophenyl sulfone ionized modified N, N' -sulfuryl diimidazole; the molar ratio of the 2-chloroethyl 4-fluorophenyl sulfone to the N, N' -sulfuryl diimidazole to the organic solvent is 2:1: 12; the organic solvent is dichloromethane.
The preparation method of the surface modified boron nitride quantum dot/nano boron fiber composite comprises the following steps: dispersing boron nitride quantum dots and nano boron fibers in ethanol, adding 3-triethoxysilylpropyltrimethylammonium chloride, and stirring at 55 ℃ for reacting for 6.5 hours to obtain a surface modified boron nitride quantum dot/nano boron fiber composite; the mass ratio of the boron nitride quantum dots to the nano boron fibers to the ethanol to the 3-triethoxysilylpropyltrimethylammonium chloride is 1:4.5:27: 0.15; the diameter of the nano boron fiber is 350nm, and the length-diameter ratio is 14.5: 1.
The thickness of the wear-resistant composite layer is 8 micrometers, and the wire diameter of the wear-resistant steel wire is 100 micrometers.
The preparation method of the wear-resistant steel wire comprises the following steps: mixing the components according to the weight percentage, casting the mixture into a casting blank, then carrying out heat treatment and hot rolling in sequence, coiling the hot-rolled casting blank in a 900 ℃ temperature area to form a crude product, and then keeping the temperature in a 580 ℃ molten salt bath for 60 seconds; carrying out controlled cooling treatment on the crude product, carrying out patenting treatment, and then drawing wires to form a wear-resistant steel wire; the temperature of the heat treatment is 1050 ℃; the temperature of the hot rolling is 1050 ℃; the patenting treatment temperature is cooled to 750 ℃ from 850 ℃, and the cooling speed is 23 ℃/s.
The preparation method of the wear-resistant wire-cutting composite wire comprises the following steps: and (3) placing the wear-resistant steel wire in a mold cavity, uniformly mixing the raw materials of the wear-resistant composite layer, melting, injecting the melt into the mold cavity, cooling and solidifying, and demolding to obtain the wear-resistant wire-electrode cutting composite wire.
Example 3
Embodiment 3 provides a wear-resistant wire-cut composite wire, which is characterized in that the wear-resistant wire-cut composite wire is manufactured by solidifying a wear-resistant composite layer on the surface of a wear-resistant steel wire; the wear-resistant steel wire is prepared from the following components in percentage by weight: 0.55%, Si: 0.3%, Sr: 0.06%, Mn: 0.5%, Hf: 0.065%, Nb: 0.025%, Tc: 0.02%, Mo: 0.3%, Cr: 0.6%, Se: 0.002%, and the balance of Fe and inevitable impurities; the wear-resistant composite layer is prepared from the following raw materials in parts by weight: 45 parts of hyperbranched sulfonated polyether ether ketone, 3 parts of ferrocenyl metal organic framework, 6.5 parts of surface modified boron nitride quantum dot/nano boron fiber composite, 1.5 parts of phosphorus pentoxide, 8 parts of 2-chloroethyl 4-fluorophenylsulfone ionized modified N, N' -sulfuryl diimidazole and 1.5 parts of 3-triethoxysilylpropyltrimethylammonium chloride.
The preparation method of the 2-chloroethyl 4-fluorophenyl sulfone ionized modified N, N' -sulfuryl diimidazole comprises the following steps: adding 2-chloroethyl 4-fluorophenyl sulfone and N, N '-sulfuryl diimidazole into an organic solvent, stirring and reacting for 5 hours at 60 ℃, then performing rotary evaporation to remove the solvent, washing with diethyl ether for 6 times, and then performing rotary evaporation to remove residual solvent and diethyl ether to obtain 2-chloroethyl 4-fluorophenyl sulfone ionized modified N, N' -sulfuryl diimidazole; the molar ratio of the 2-chloroethyl 4-fluorophenyl sulfone to the N, N' -sulfuryl diimidazole to the organic solvent is 2:1: 13; the organic solvent is diethyl ether.
The preparation method of the surface modified boron nitride quantum dot/nano boron fiber composite comprises the following steps: dispersing boron nitride quantum dots and nano boron fibers in ethanol, adding 3-triethoxysilylpropyltrimethylammonium chloride, and stirring at 60 ℃ for reaction for 7 hours to obtain a surface modified boron nitride quantum dot/nano boron fiber composite; the mass ratio of the boron nitride quantum dots to the nano boron fibers to the ethanol to the 3-triethoxysilylpropyltrimethylammonium chloride is 1:5:30: 0.2; the diameter of the nano boron fiber is 400nm, and the length-diameter ratio is 15: 1.
The thickness of the wear-resistant composite layer is 10 micrometers, and the wire diameter of the wear-resistant steel wire is 160 micrometers.
The preparation method of the wear-resistant steel wire comprises the following steps: mixing the components according to the weight percentage, casting the mixture into a casting blank, then carrying out heat treatment and hot rolling in sequence, coiling the hot-rolled casting blank in a 920 ℃ temperature area to form a crude product, and then keeping the temperature in a 610 ℃ molten salt bath for 65 seconds; carrying out controlled cooling treatment on the crude product, carrying out patenting treatment, and then drawing wires to form a wear-resistant steel wire; the temperature of the heat treatment is 1100 ℃; the temperature of the hot rolling is 1100 ℃; the patenting treatment temperature is cooled from 850 ℃ to 750 ℃, and the cooling speed is 25 ℃/s.
The preparation method of the wear-resistant wire-cutting composite wire comprises the following steps: and (3) placing the wear-resistant steel wire in a mold cavity, uniformly mixing the raw materials of the wear-resistant composite layer, melting, injecting the melt into the mold cavity, cooling and solidifying, and demolding to obtain the wear-resistant wire-electrode cutting composite wire.
Example 4
Embodiment 4 provides a wear-resistant wire-cut composite wire, which is characterized in that the wear-resistant wire-cut composite wire is manufactured by solidifying a wear-resistant composite layer on the surface of a wear-resistant steel wire; the wear-resistant steel wire is prepared from the following components in percentage by weight: 0.65%, Si: 0.35%, Sr: 0.07%, Mn: 0.55%, Hf: 0.075%, Nb: 0.035%, Tc: 0.025%, Mo: 0.35%, Cr: 0.7%, Se: 0.0025%, the balance being Fe and inevitable impurities; the wear-resistant composite layer is prepared from the following raw materials in parts by weight: 48 parts of hyperbranched sulfonated polyether ether ketone, 3.5 parts of ferrocenyl metal organic framework, 7.5 parts of surface modified boron nitride quantum dot/nano boron fiber composite, 1.8 parts of phosphorus pentoxide, 9.5 parts of 2-chloroethyl 4-fluorophenyl sulfone ionized modified N, N' -sulfuryl diimidazole and 1.8 parts of 3-triethoxysilylpropyltrimethylammonium chloride.
The preparation method of the 2-chloroethyl 4-fluorophenyl sulfone ionized modified N, N' -sulfuryl diimidazole comprises the following steps: adding 2-chloroethyl 4-fluorophenyl sulfone and N, N '-sulfuryl diimidazole into an organic solvent, stirring and reacting for 5.5 hours at 65 ℃, then performing rotary evaporation to remove the solvent, washing with diethyl ether for 7 times, and then performing rotary evaporation to remove residual solvent and diethyl ether to obtain 2-chloroethyl 4-fluorophenyl sulfone ionized modified N, N' -sulfuryl diimidazole; the molar ratio of the 2-chloroethyl 4-fluorophenyl sulfone to the N, N' -sulfuryl diimidazole to the organic solvent is 2:1: 15; the organic solvent is ethyl acetate.
The preparation method of the surface modified boron nitride quantum dot/nano boron fiber composite comprises the following steps: dispersing boron nitride quantum dots and nano boron fibers in ethanol, adding 3-triethoxysilylpropyltrimethylammonium chloride, and stirring at 65 ℃ to react for 7.8 hours to obtain a surface modified boron nitride quantum dot/nano boron fiber composite; the mass ratio of the boron nitride quantum dots to the nano boron fibers to the ethanol to the 3-triethoxysilylpropyltrimethylammonium chloride is 1:5.5:33: 0.25; the diameter of the nano boron fiber is 450nm, and the length-diameter ratio is 15.5: 1.
The thickness of the wear-resistant composite layer is 13 microns, and the wire diameter of the wear-resistant steel wire is 220 microns.
The preparation method of the wear-resistant steel wire comprises the following steps: mixing the components according to the weight percentage, casting the mixture into a casting blank, then carrying out heat treatment and hot rolling in sequence, coiling the hot-rolled casting blank in a 980 ℃ temperature area to form a crude product, and then keeping the temperature in a 680 ℃ molten salt bath for 65 seconds; carrying out controlled cooling treatment on the crude product, carrying out patenting treatment, and then drawing wires to form a wear-resistant steel wire; the temperature of the heat treatment is 1150 ℃; the temperature of the hot rolling is 1150 ℃; the patenting treatment temperature is cooled from 850 ℃ to 750 ℃, and the cooling speed is 28 ℃/s.
The preparation method of the wear-resistant wire-cutting composite wire comprises the following steps: and (3) placing the wear-resistant steel wire in a mold cavity, uniformly mixing the raw materials of the wear-resistant composite layer, melting, injecting the melt into the mold cavity, cooling and solidifying, and demolding to obtain the wear-resistant wire-electrode cutting composite wire.
Example 5
Embodiment 5 provides a wear-resistant wire-cut composite wire, which is characterized in that the wear-resistant wire-cut composite wire is manufactured by solidifying a wear-resistant composite layer on the surface of a wear-resistant steel wire; the wear-resistant steel wire is prepared from the following components in percentage by weight: 0.7%, Si: 0.4%, Sr: 0.08%, Mn: 0.6%, Hf: 0.08%, Nb: 0.04%, Tc: 0.03%, Mo: 0.4%, Cr: 0.8%, Se: 0.003%, and the balance of Fe and inevitable impurities; the wear-resistant composite layer is prepared from the following raw materials in parts by weight: 50 parts of hyperbranched sulfonated polyether ether ketone, 4 parts of ferrocenyl metal organic framework, 8 parts of surface modified boron nitride quantum dot/nano boron fiber composite, 2 parts of phosphorus pentoxide, 10 parts of 2-chloroethyl 4-fluorophenylsulfone ionized modified N, N' -sulfuryl diimidazole and 2 parts of 3-triethoxysilylpropyl trimethyl ammonium chloride.
The preparation method of the 2-chloroethyl 4-fluorophenyl sulfone ionized modified N, N' -sulfuryl diimidazole comprises the following steps: adding 2-chloroethyl 4-fluorophenyl sulfone and N, N '-sulfuryl diimidazole into an organic solvent, stirring and reacting for 6 hours at 70 ℃, then performing rotary evaporation to remove the solvent, washing with diethyl ether for 8 times, and then performing rotary evaporation to remove residual solvent and diethyl ether to obtain 2-chloroethyl 4-fluorophenyl sulfone ionized modified N, N' -sulfuryl diimidazole; the molar ratio of the 2-chloroethyl 4-fluorophenyl sulfone to the N, N' -sulfuryl diimidazole to the organic solvent is 2:1: 16; the organic solvent is acetone.
The preparation method of the surface modified boron nitride quantum dot/nano boron fiber composite comprises the following steps: dispersing boron nitride quantum dots and nano boron fibers in ethanol, adding 3-triethoxysilylpropyltrimethylammonium chloride, and stirring at 70 ℃ for reacting for 8 hours to obtain a surface modified boron nitride quantum dot/nano boron fiber composite; the mass ratio of the boron nitride quantum dots to the nano boron fibers to the ethanol to the 3-triethoxysilylpropyltrimethylammonium chloride is 1:6:35: 0.3; the diameter of the nano boron fiber is 500nm, and the length-diameter ratio is 16: 1.
The thickness of the wear-resistant composite layer is 15 micrometers, and the wire diameter of the wear-resistant steel wire is 230 micrometers.
The preparation method of the wear-resistant steel wire comprises the following steps: mixing the components according to the weight percentage, casting the mixture into a casting blank, then carrying out heat treatment and hot rolling in sequence, coiling the hot-rolled casting blank in a temperature region of 1000 ℃ to form a crude product, and then keeping the temperature in a molten salt bath at 700 ℃ for 80 seconds; carrying out controlled cooling treatment on the crude product, carrying out patenting treatment, and then drawing wires to form a wear-resistant steel wire; the temperature of the heat treatment is 1200 ℃; the temperature of the hot rolling is 1200 ℃; the patenting treatment temperature is cooled from 850 ℃ to 750 ℃, and the cooling speed is 30 ℃/s.
The preparation method of the wear-resistant wire-cutting composite wire comprises the following steps: and (3) placing the wear-resistant steel wire in a mold cavity, uniformly mixing the raw materials of the wear-resistant composite layer, melting, injecting the melt into the mold cavity, cooling and solidifying, and demolding to obtain the wear-resistant wire-electrode cutting composite wire.
Comparative example 1
Comparative example 1 provides a wear-resistant wire-cut composite wire whose formulation and manufacturing method are substantially the same as those of example 1, except that Hf and Nb are not added in the manufacturing process of the wear-resistant steel wire.
Comparative example 2
Comparative example 2 provides a wear-resistant wire-cut composite wire whose formulation and preparation method are substantially the same as those of example 1, except that Tc and Se are not added during the preparation of the wear-resistant steel wire.
Comparative example 3
Comparative example 3 provides a wear-resistant wire-cut composite wire whose formulation and preparation method are substantially the same as those of example 1, except that no ferrocenyl metal-organic framework is added during the preparation of the wear-resistant composite layer.
Comparative example 4
Comparative example 4 provides a wear-resistant wire-cut composite wire whose formulation and preparation method are substantially the same as those of example 1, except that the surface-modified boron nitride quantum dot/nano boron fiber composite is not added in the preparation process of the wear-resistant composite layer.
Comparative example 5
Comparative example 5 provides a wear-resistant wire-cut composite wire whose formulation and preparation method are substantially the same as those of example 1, except that 2-chloroethyl 4-fluorophenylsulfone-ionized modified N, N' -thiodiimidazole was not added during the preparation of the wear-resistant composite layer.
The products of examples 1 to 5 and comparative examples 1 to 5 described above were tested.
(1) And (3) testing the tensile strength, wherein the testing method refers to GBT8358-2006, and the testing result is shown in Table 1.
(2) Hardness test, test method refer to GB/T4340.1-1999, and the test results are shown in Table 1.
(3) And (3) abrasion resistance testing, namely testing on an ML-10 type abrasive abrasion tester, wherein the testing method comprises the following steps: the weight W of the sample prepared according to the standard is measuredOriginal source(g or mg) of a compound represented by,then it is mounted in the chuck, and a certain load is applied to the chuck to make the sample and abrasive material (corundum abrasive paper) implement relative movement, after 5000 circles, the sample is taken out, and its weight W is measuredMillThe weight loss was found to be: w ═ WOriginal source－WMillAnd then, the weight loss and the mass ratio of the original sample are calculated to measure the relative size of the wear resistance, and the test result is shown in table 1.
Table 1 results of performance test of abrasion-resistant wire-cut composite wires of examples and comparative examples
| Test items | Tensile Strength (MPa) | Hardness (HV) | Abrasion resistance weight loss ratio (%) |
| Example 1 | 2792 | 399 | 0.021 |
| Example 2 | 2819 | 408 | 0. 018 |
| Example 3 | 2830 | 415 | 0. 014 |
| Example 4 | 2845 | 422 | 0. 012 |
| Example 5 | 2853 | 430 | 0. 010 |
| Comparative example 1 | 2704 | 361 | 0.028 |
| Comparative example 2 | 2692 | 357 | 0.032 |
| Comparative example 3 | 2675 | 376 | 0.030 |
| Comparative example 4 | 2650 | 355 | 0.035 |
| Comparative example 5 | 2647 | 362 | 0.031 |
As can be seen from table 1, the wear-resistant wire-cut composite wire material disclosed in the examples of the present invention has higher mechanical properties and wear resistance than the comparative example product, which is a result of synergistic effects of the structures and the formulations of the components.
The above-mentioned embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.
Claims (10)
1. A wear-resistant wire-cutting composite wire is characterized in that the wear-resistant wire-cutting composite wire is prepared by solidifying a wear-resistant composite layer on the surface of a wear-resistant steel wire; the wear-resistant steel wire is prepared from the following components in percentage by weight: 0.4% -0.7%, Si: 0.2-0.4%, Sr: 0.03% -0.08%, Mn: 0.4% -0.6%, Hf: 0.05% -0.08%, Nb: 0.01% -0.04%, Tc: 0.01-0.03%, Mo: 0.2-0.4%, Cr: 0.4% -0.8%, Se: 0.001 to 0.003 percent of Fe and inevitable impurities as the rest; the wear-resistant composite layer is prepared from the following raw materials in parts by weight: 40-50 parts of hyperbranched sulfonated polyether ether ketone, 2-4 parts of ferrocenyl metal organic framework, 5-8 parts of surface modified boron nitride quantum dot/nano boron fiber composite, 1-2 parts of phosphorus pentoxide, 6-10 parts of 2-chloroethyl 4-fluorophenylsulfone ionized modified N, N' -sulfuryl diimidazole and 1-2 parts of 3-triethoxysilylpropyltrimethylammonium chloride.
2. The wear-resistant wire-cutting composite wire of claim 1, wherein the preparation method of the 2-chloroethyl 4-fluorophenyl sulfone ionized modified N, N' -sulfuryl diimidazole comprises the following steps: adding 2-chloroethyl 4-fluorophenyl sulfone and N, N '-sulfuryl diimidazole into an organic solvent, stirring and reacting for 4-6 hours at 50-70 ℃, then performing rotary evaporation to remove the solvent, washing with diethyl ether for 4-8 times, and then performing rotary evaporation to remove residual solvent and diethyl ether to obtain the 2-chloroethyl 4-fluorophenyl sulfone ionized modified N, N' -sulfuryl diimidazole.
3. The abrasion-resistant wire-electrode cutting composite wire according to claim 2, wherein the molar ratio of the 2-chloroethyl 4-fluorophenyl sulfone to the N, N' -sulfuryl diimidazole to the organic solvent is 2:1 (10-16).
4. The abrasion-resistant wire-electrode cutting composite wire according to claim 2, wherein the organic solvent is any one of dimethyl sulfoxide, dichloromethane, diethyl ether, ethyl acetate and acetone.
5. The wear-resistant wire-electrode cutting composite wire according to claim 1, wherein the preparation method of the surface-modified boron nitride quantum dot/nano boron fiber composite comprises the following steps: dispersing the boron nitride quantum dots and the nano boron fibers in ethanol, adding 3-triethoxysilylpropyltrimethylammonium chloride, and stirring and reacting at 50-70 ℃ for 6-8 hours to obtain the surface modified boron nitride quantum dot/nano boron fiber composite.
6. The wear-resistant wire-cutting composite wire rod of claim 5, wherein the mass ratio of the boron nitride quantum dots, the nano boron fibers, the ethanol and the 3-triethoxysilylpropyltrimethylammonium chloride is 1 (4-6) to (25-35) to (0.1-0.3); the diameter of the nano boron fiber is 300-500nm, and the length-diameter ratio is (14-16): 1.
7. The abrasion-resistant wire-cut composite wire according to claim 1, wherein the thickness of the abrasion-resistant composite layer is 5 μm to 15 μm, and the wire diameter of the abrasion-resistant steel wire is 70 μm to 230 μm.
8. The wear-resistant wire-cut composite wire rod of claim 1, wherein the preparation method of the wear-resistant steel wire comprises the following steps: mixing the components according to the weight percentage, casting the mixture into a casting blank, then carrying out heat treatment and hot rolling in sequence, coiling the hot-rolled casting blank in a temperature region of 850-1000 ℃ to form a crude product, and then keeping the temperature in a molten salt bath at 550-700 ℃ for 50-80 seconds; and performing controlled cooling treatment on the crude product, performing patenting treatment, and then drawing wires to form the wear-resistant steel wire.
9. The wear-resistant wire-cut composite wire of claim 8, wherein the heat treatment temperature is 1000 ℃ to 1200 ℃; the temperature of the hot rolling is 1000-1200 ℃; the patenting treatment temperature is cooled to 750 ℃ from 850 ℃, and the cooling speed is 20-30 ℃/s.
10. A method of making a wear resistant wire-cut composite wire according to any one of claims 1 to 9, comprising the steps of: and (3) placing the wear-resistant steel wire in a mold cavity, uniformly mixing the raw materials of the wear-resistant composite layer, melting, injecting the melt into the mold cavity, cooling and solidifying, and demolding to obtain the wear-resistant wire-electrode cutting composite wire.
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