CN114058926A - Material for generator conductor wire forming die and preparation method thereof - Google Patents
Material for generator conductor wire forming die and preparation method thereof Download PDFInfo
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- CN114058926A CN114058926A CN202111181039.4A CN202111181039A CN114058926A CN 114058926 A CN114058926 A CN 114058926A CN 202111181039 A CN202111181039 A CN 202111181039A CN 114058926 A CN114058926 A CN 114058926A
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- 239000000463 material Substances 0.000 title claims abstract description 53
- 239000004020 conductor Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910000851 Alloy steel Inorganic materials 0.000 claims abstract description 31
- 239000002861 polymer material Substances 0.000 claims abstract description 21
- 239000012535 impurity Substances 0.000 claims abstract description 18
- 239000002346 layers by function Substances 0.000 claims abstract description 18
- 229920000620 organic polymer Polymers 0.000 claims abstract description 17
- 239000000758 substrate Substances 0.000 claims abstract description 15
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000004593 Epoxy Substances 0.000 claims abstract description 13
- 229910052796 boron Inorganic materials 0.000 claims abstract description 13
- 239000007822 coupling agent Substances 0.000 claims abstract description 13
- 239000000835 fiber Substances 0.000 claims abstract description 13
- 229910052742 iron Inorganic materials 0.000 claims abstract description 13
- 239000002904 solvent Substances 0.000 claims abstract description 13
- 239000004693 Polybenzimidazole Substances 0.000 claims abstract description 12
- 229920002480 polybenzimidazole Polymers 0.000 claims abstract description 12
- 229910045601 alloy Inorganic materials 0.000 claims description 24
- 239000000956 alloy Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 17
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000000227 grinding Methods 0.000 claims description 9
- 238000000748 compression moulding Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 238000005245 sintering Methods 0.000 claims description 8
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229910017827 Cu—Fe Inorganic materials 0.000 claims description 4
- 229910000640 Fe alloy Inorganic materials 0.000 claims description 4
- 229910003271 Ni-Fe Inorganic materials 0.000 claims description 4
- 229910018619 Si-Fe Inorganic materials 0.000 claims description 4
- 229910008289 Si—Fe Inorganic materials 0.000 claims description 4
- 229910020900 Sn-Fe Inorganic materials 0.000 claims description 4
- 229910019314 Sn—Fe Inorganic materials 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 238000007873 sieving Methods 0.000 claims description 4
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 3
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 abstract description 5
- 238000007254 oxidation reaction Methods 0.000 abstract description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
- B21C3/02—Dies; Selection of material therefor; Cleaning thereof
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/14—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0207—Using a mixture of prealloyed powders or a master alloy
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/016—Additives defined by their aspect ratio
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- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a material for a generator conductor wire forming die and a preparation method thereof, and is characterized by comprising an alloy steel substrate and an organic polymer material functional layer coated on the surface of the alloy steel substrate, wherein the alloy steel substrate is prepared from the following components in percentage by weight: 0.1-0.5% of C, 0.4-0.8% of Si, 1.2-2.2% of Cu, 0.6-1.2% of Sn, 0.2-0.4% of Zn, 3-5% of Ni, 2.5-4.5% of Cr, 0.05-0.08% of Zr, and the balance of iron and inevitable impurities; the content of the inevitable impurities does not exceed 0.01%; the organic polymer material functional layer is prepared from the following components in parts by weight: 40-50 parts of epoxy hyperbranched polyborosiloxane, 10-20 parts of amino-terminated hyperbranched polybenzimidazole, 2-5 parts of coupling agent, 4-8 parts of nano boron fiber and 25-35 parts of solvent. The material for the generator conductor wire forming die disclosed by the invention has the advantages of large mechanical property, good performance stability, good oxidation resistance and deformation resistance, excellent high temperature resistance and demolding property and long service life.
Description
Technical Field
The invention relates to the technical field of conductor wire forming dies, in particular to a material for a generator conductor wire forming die and a preparation method thereof.
Background
With the development of social economy and the promotion of global industrialization progress, people put forth new requirements on a generator which is one of common power generation devices, and the market demand of the generator is larger and larger. In order to realize efficient and safe power generation of the generator, effectively improve the working performance of the generator and prolong the service life of the generator, development of high-quality generator accessories is very necessary. As one of the important accessories of the generator, the improvement of the quality of the conductive wire has become one of the hot topics studied by researchers in the industry.
The precise die is needed to ensure the drawing quality of the conductor wire in the forming process of the conductor wire of the generator, and the stability and the uniformity of painting of the conductor wire are realized. The material for the die is a key factor for determining the quality of the die, and the high-quality die is a powerful guarantee for smoothly forming the wire rod and effectively improving the performance of the wire rod. Therefore, how to effectively optimize the components of the material for the generator conductor wire forming die and adjust the process to prepare the generator conductor wire forming die meeting the quality requirements of practical application is a difficult problem to be solved in the field.
The existing forming die for the conductor wire of the generator mainly comprises metal materials and organic polymer materials; however, the oxidation resistance and the deformation resistance of metal molds in the market are poor, the service life of the molds is short, the quality and the production efficiency of conductor wire products are low, and the production cost is high; heavy and difficult to handle, and the reciprocating changes from room temperature to the metal casting temperature can deform the metal mold. The organic polymer material mold has the advantages of excellent simulation, demolding performance, size stability, convenient processing and forming and the like, and becomes an excellent mold material. However, the organic polymer material molds on the market have the defects of poor aging resistance, insufficient high temperature resistance and the like.
The field still needs a material for a forming die of a generator conductor wire with large mechanical property, good performance stability, good oxidation resistance and deformation resistance, excellent high temperature resistance and demoulding property and long service life.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a material for a forming die of a conductor wire of a generator, which has the advantages of large mechanical property, good performance stability, good oxidation resistance and deformation resistance, excellent high temperature resistance and demoulding property and long service life. Meanwhile, the invention also provides a material for the generator conductor wire forming die, and the preparation method is simple, convenient and easy to operate, small in equipment dependence, high in preparation efficiency and finished product qualification rate, and suitable for continuous large-scale application.
In order to achieve the purpose, the invention adopts the technical scheme that: the material for the forming die of the conductor wire of the generator is characterized by comprising an alloy steel base material and an organic high polymer material functional layer coated on the surface of the alloy steel base material, wherein the alloy steel base material is prepared from the following components in percentage by weight: 0.1-0.5% of C, 0.4-0.8% of Si, 1.2-2.2% of Cu, 0.6-1.2% of Sn, 0.2-0.4% of Zn, 3-5% of Ni, 2.5-4.5% of Cr, 0.05-0.08% of Zr, and the balance of iron and inevitable impurities; the content of the inevitable impurities does not exceed 0.01%; the organic polymer material functional layer is prepared from the following components in parts by weight: 40-50 parts of epoxy hyperbranched polyborosiloxane, 10-20 parts of amino-terminated hyperbranched polybenzimidazole, 2-5 parts of coupling agent, 4-8 parts of nano boron fiber and 25-35 parts of solvent.
Preferably, the epoxy hyperbranched polyborosiloxane is prepared according to the method of embodiment 1 of the invention patent CN 107868252A.
Preferably, the amino-terminated hyperbranched polybenzimidazole is prepared by the method of embodiment 3 of the invention patent 200510111019.4.
Preferably, the coupling agent is at least one of a silane coupling agent KH550, a silane coupling agent KH560 and a silane coupling agent KH 570.
Preferably, the average diameter of the nano boron fiber is 300-500nm, and the length-diameter ratio is (10-15): 1.
Preferably, the solvent is at least one of dimethyl sulfoxide, N-dimethylformamide, N-dimethylacetamide and N-methylpyrrolidone.
Another object of the present invention is to provide a method for preparing the material for the generator conductor wire forming mold, which comprises the following steps:
step S1, uniformly mixing C-Fe alloy, Si-Fe intermediate alloy, Cu-Fe intermediate alloy, Sn-Fe intermediate alloy, Zn-Fe intermediate alloy, Ni-Fe intermediate alloy, Zr-Fe intermediate alloy and iron according to a ratio, grinding into powder by an ultrasonic grinding technology, sieving by a 900-mesh and 1300-mesh sieve, and then sequentially performing compression molding and sintering to obtain an alloy steel base material;
and S2, uniformly mixing all the components of the organic polymer material functional layer according to parts by weight, coating the mixture on an alloy steel substrate, and drying the alloy steel substrate at the temperature of 110-.
Preferably, the pressure of the compression molding is 500-800 MPa; the press forming is performed under a nitrogen atmosphere.
Preferably, the sintering process specifically comprises: firstly, heating to 900-; keeping the temperature for 1-2 hours, then heating to 1050-.
Detailed Description
The following detailed description of preferred embodiments of the invention will be made.
The material for the forming die of the conductor wire of the generator is characterized by comprising an alloy steel base material and an organic high polymer material functional layer coated on the surface of the alloy steel base material, wherein the alloy steel base material is prepared from the following components in percentage by weight: 0.1-0.5% of C, 0.4-0.8% of Si, 1.2-2.2% of Cu, 0.6-1.2% of Sn, 0.2-0.4% of Zn, 3-5% of Ni, 2.5-4.5% of Cr, 0.05-0.08% of Zr, and the balance of iron and inevitable impurities; the content of the inevitable impurities does not exceed 0.01%; the organic polymer material functional layer is prepared from the following components in parts by weight: 40-50 parts of epoxy hyperbranched polyborosiloxane, 10-20 parts of amino-terminated hyperbranched polybenzimidazole, 2-5 parts of coupling agent, 4-8 parts of nano boron fiber and 25-35 parts of solvent.
Preferably, the epoxy hyperbranched polyborosiloxane is prepared according to the method of embodiment 1 of the invention patent CN 107868252A.
Preferably, the amino-terminated hyperbranched polybenzimidazole is prepared by the method of embodiment 3 of the invention patent 200510111019.4.
Preferably, the coupling agent is at least one of a silane coupling agent KH550, a silane coupling agent KH560 and a silane coupling agent KH 570.
Preferably, the average diameter of the nano boron fiber is 300-500nm, and the length-diameter ratio is (10-15): 1.
Preferably, the solvent is at least one of dimethyl sulfoxide, N-dimethylformamide, N-dimethylacetamide and N-methylpyrrolidone.
Another object of the present invention is to provide a method for preparing the material for the generator conductor wire forming mold, which comprises the following steps:
step S1, uniformly mixing C-Fe alloy, Si-Fe intermediate alloy, Cu-Fe intermediate alloy, Sn-Fe intermediate alloy, Zn-Fe intermediate alloy, Ni-Fe intermediate alloy, Zr-Fe intermediate alloy and iron according to a ratio, grinding into powder by an ultrasonic grinding technology, sieving by a 900-mesh and 1300-mesh sieve, and then sequentially performing compression molding and sintering to obtain an alloy steel base material;
and S2, uniformly mixing all the components of the organic polymer material functional layer according to parts by weight, coating the mixture on an alloy steel substrate, and drying the alloy steel substrate at the temperature of 110-.
Preferably, the pressure of the compression molding is 500-800 MPa; the press forming is performed under a nitrogen atmosphere.
Preferably, the sintering process specifically comprises: firstly, heating to 900-; keeping the temperature for 1-2 hours, then heating to 1050-.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: according to the material for the forming die of the conductor wire of the generator, the material structure and the formula are designed, so that the manufactured product has the advantages of high mechanical property, good performance stability, good oxidation resistance and deformation resistance, excellent high temperature resistance and demolding property and long service life; the phenomena of mold cracks and fragmentation are effectively avoided, and the drawing quality of the conductor wire is ensured; by selecting the powder metallurgy process and combining the ultrasonic grinding technology, the prepared material can be applied to a self-calibration special-shaped coating die with long service life, high precision and excellent performance consistency, and the stability and uniformity of conductor wire coating are realized.
The invention will be further described with reference to specific examples, but the scope of protection of the invention is not limited thereto:
example 1
The material for the forming die of the conductor wire of the generator is characterized by comprising an alloy steel base material and an organic high polymer material functional layer coated on the surface of the alloy steel base material, wherein the alloy steel base material is prepared from the following components in percentage by weight: 0.1% of C, 0.4% of Si, 1.2% of Cu, 0.6% of Sn, 0.2% of Zn, 3% of Ni, 2.5% of Cr, 0.05% of Zr, and the balance of iron and inevitable impurities; the content of the inevitable impurities does not exceed 0.01%; the organic polymer material functional layer is prepared from the following components in parts by weight: 40 parts of epoxy hyperbranched polyborosiloxane, 10 parts of amino-terminated hyperbranched polybenzimidazole, 2 parts of coupling agent, 4 parts of nano boron fiber and 25 parts of solvent.
The epoxy hyperbranched polyborosiloxane is prepared by the method of the invention patent CN107868252A example 1; the amino-terminated hyperbranched polybenzimidazole is prepared by the method of the invention patent 200510111019.4, example 3.
The coupling agent is a silane coupling agent KH 550; the average diameter of the nano boron fiber is 300nm, and the length-diameter ratio is 10: 1; the solvent is dimethyl sulfoxide.
The preparation method of the material for the generator conductor wire forming die is characterized by comprising the following steps of:
step S1, uniformly mixing C-Fe alloy, Si-Fe intermediate alloy, Cu-Fe intermediate alloy, Sn-Fe intermediate alloy, Zn-Fe intermediate alloy, Ni-Fe intermediate alloy, Zr-Fe intermediate alloy and iron according to a ratio, grinding into powder by an ultrasonic grinding technology, sieving by a 900-mesh and 1300-mesh sieve, and then sequentially performing compression molding and sintering to obtain an alloy steel base material;
and S2, uniformly mixing all the components of the organic polymer material functional layer according to parts by weight, coating the mixture on an alloy steel substrate, and drying the alloy steel substrate at 110 ℃ to constant weight to obtain a finished product of the material for the generator conductor wire forming die.
The pressure of the compression molding is 500 MPa; the compression molding is carried out in a nitrogen atmosphere; the sintering process specifically comprises the following steps: firstly, heating to 900 ℃ at a heating rate of 15 ℃/min, wherein the pressure in the furnace is 30 MPa; keeping the temperature for 1 hour, then heating to 1050 ℃ at the heating rate of 5 ℃/min, keeping the temperature for 2 hours at the pressure of 120MPa in the furnace, then cooling to 600 ℃ at the speed of 3 ℃/min, keeping the temperature for 1 hour, and then cooling to room temperature along with the furnace.
Example 2
A material for a forming die of a conductor wire of a generator, which is substantially the same as that in example 1, except that the alloy steel substrate is prepared from the following components in percentage by weight: 0.2% of C, 0.5% of Si, 1.5% of Cu, 0.8% of Sn, 0.25% of Zn, 3.5% of Ni, 3% of Cr, 0.06% of Zr, the balance being iron and unavoidable impurities; the content of the inevitable impurities does not exceed 0.01%; the organic polymer material functional layer is prepared from the following components in parts by weight: 43 parts of epoxy hyperbranched polyborosiloxane, 12 parts of amino-terminated hyperbranched polybenzimidazole, 3 parts of coupling agent, 5 parts of nano boron fiber and 27 parts of solvent.
Example 3
A material for a forming die of a conductor wire of a generator, which is substantially the same as that in example 1, except that the alloy steel substrate is prepared from the following components in percentage by weight: 0.3% of C, 0.6% of Si, 1.8% of Cu, 0.9% of Sn, 0.3% of Zn, 4% of Ni, 3.5% of Cr, 0.065% of Zr, and the balance of iron and inevitable impurities; the content of the inevitable impurities does not exceed 0.01%; the organic polymer material functional layer is prepared from the following components in parts by weight: 45 parts of epoxy hyperbranched polyborosiloxane, 15 parts of amino-terminated hyperbranched polybenzimidazole, 3.5 parts of coupling agent, 6 parts of nano boron fiber and 30 parts of solvent.
Example 4
A material for a forming die of a conductor wire of a generator, which is substantially the same as that in example 1, except that the alloy steel substrate is prepared from the following components in percentage by weight: 0.4% of C, 0.75% of Si, 2.1% of Cu, 1.0% of Sn, 0.35% of Zn, 4.5% of Ni, 4.2% of Cr, 0.075% of Zr, the balance being iron and unavoidable impurities; the content of the inevitable impurities does not exceed 0.01%; the organic polymer material functional layer is prepared from the following components in parts by weight: 48 parts of epoxy hyperbranched polyborosiloxane, 18 parts of amino-terminated hyperbranched polybenzimidazole, 4.5 parts of coupling agent, 7.5 parts of nano boron fiber and 33 parts of solvent.
Example 5
A material for a forming die of a conductor wire of a generator, which is substantially the same as that in example 1, except that the alloy steel substrate is prepared from the following components in percentage by weight: 0.5% of C, 0.8% of Si, 2.2% of Cu, 1.2% of Sn, 0.4% of Zn, 5% of Ni, 4.5% of Cr, 0.08% of Zr, and the balance of iron and inevitable impurities; the content of the inevitable impurities does not exceed 0.01%; the organic polymer material functional layer is prepared from the following components in parts by weight: 50 parts of epoxy hyperbranched polyborosiloxane, 20 parts of amino-terminated hyperbranched polybenzimidazole, 5 parts of coupling agent, 8 parts of nano boron fiber and 35 parts of solvent.
Comparative example 1
A material for a generator conductor wire molding die, which is substantially the same as in example 1 except that Sn and Zr were not added.
Comparative example 2
A material for a generator conductor wire molding die, which is substantially the same as in example 1, except that 2, 2-bis- (4-glycidoxybenzene) propane is used instead of the epoxy hyperbranched polyborosiloxane.
In order to further explain the beneficial technical effects of the material for the generator conductor wire forming die in each embodiment, the material for the generator conductor wire forming die prepared in each embodiment is subjected to related performance tests, the test method refers to the current corresponding national standard in China, and the test results are shown in table 1.
TABLE 1
| Test items | Unit of | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Comparative example 1 | Comparative example 2 |
| Tensile strength | MPa | 1680 | 1703 | 1735 | 1760 | 1788 | 1605 | 1680 |
| Retention of tensile Strength after 1000 uses | MPa | 98.9 | 99.3 | 99.6 | 99.8 | 99.9 | 96.7 | 96.0 |
As can be seen from the above table, the material for forming the conductor wire of the generator disclosed in the embodiment of the present invention has more excellent tensile strength and performance stability than the comparative example, which are the result of the combined action of the structures, components and formulations.
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 (7)
1. The material for the forming die of the conductor wire of the generator is characterized by comprising an alloy steel base material and an organic high polymer material functional layer coated on the surface of the alloy steel base material, wherein the alloy steel base material is prepared from the following components in percentage by weight: 0.1-0.5% of C, 0.4-0.8% of Si, 1.2-2.2% of Cu, 0.6-1.2% of Sn, 0.2-0.4% of Zn, 3-5% of Ni, 2.5-4.5% of Cr, 0.05-0.08% of Zr, and the balance of iron and inevitable impurities; the content of the inevitable impurities does not exceed 0.01%; the organic polymer material functional layer is prepared from the following components in parts by weight: 40-50 parts of epoxy hyperbranched polyborosiloxane, 10-20 parts of amino-terminated hyperbranched polybenzimidazole, 2-5 parts of coupling agent, 4-8 parts of nano boron fiber and 25-35 parts of solvent.
2. The material for the forming die of the generator conductor wire according to claim 1, wherein the coupling agent is at least one of a silane coupling agent KH550, a silane coupling agent KH560, and a silane coupling agent KH 570.
3. The material for the forming die of the conductor wire of the generator as claimed in claim 1, wherein the average diameter of the nano boron fiber is 300-500nm, and the aspect ratio is (10-15): 1.
4. The material for the forming die of the generator conductor wire according to claim 1, wherein the solvent is at least one of dimethylsulfoxide, N-dimethylformamide, N-dimethylacetamide and N-methylpyrrolidone.
5. A method for preparing a material for a forming die of a conductor wire of a generator according to any one of claims 1 to 4, comprising the steps of:
step S1, uniformly mixing C-Fe alloy, Si-Fe intermediate alloy, Cu-Fe intermediate alloy, Sn-Fe intermediate alloy, Zn-Fe intermediate alloy, Ni-Fe intermediate alloy, Zr-Fe intermediate alloy and iron according to a ratio, grinding into powder by an ultrasonic grinding technology, sieving by a 900-mesh and 1300-mesh sieve, and then sequentially performing compression molding and sintering to obtain an alloy steel base material;
and S2, uniformly mixing all the components of the organic polymer material functional layer according to parts by weight, coating the mixture on an alloy steel substrate, and drying the alloy steel substrate at the temperature of 110-.
6. The method for preparing the material for the forming die of the conductor wire of the generator as claimed in claim 5, wherein the pressure for the press forming is 500-800 MPa; the press forming is performed under a nitrogen atmosphere.
7. The preparation method of the material for the generator conductor wire forming die as claimed in claim 5, wherein the sintering process specifically comprises the following steps: firstly, heating to 900-; keeping the temperature for 1-2 hours, then heating to 1050-.
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