CN104131186B - Strengthen the preparation method of the aluminum matrix composite of particle-compatible process in copper alloy interface - Google Patents
Strengthen the preparation method of the aluminum matrix composite of particle-compatible process in copper alloy interface Download PDFInfo
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- 239000011159 matrix material Substances 0.000 title claims abstract description 60
- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 23
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 239000002131 composite material Substances 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 8
- 239000002245 particle Substances 0.000 claims abstract description 34
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000000956 alloy Substances 0.000 claims abstract description 29
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 27
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 17
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000013078 crystal Substances 0.000 claims abstract description 16
- 230000002708 enhancing effect Effects 0.000 claims abstract description 15
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical group [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000011787 zinc oxide Substances 0.000 claims abstract description 15
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000005728 strengthening Methods 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 238000007670 refining Methods 0.000 claims abstract description 7
- 229910018182 Al—Cu Inorganic materials 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 238000009736 wetting Methods 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 229910052694 Berkelium Inorganic materials 0.000 claims description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 4
- PWVKJRSRVJTHTR-UHFFFAOYSA-N berkelium atom Chemical compound [Bk] PWVKJRSRVJTHTR-UHFFFAOYSA-N 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910052746 lanthanum Inorganic materials 0.000 claims description 4
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims description 4
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 239000011572 manganese Substances 0.000 claims description 4
- 229910052727 yttrium Inorganic materials 0.000 claims description 4
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 230000032683 aging Effects 0.000 claims description 3
- UXMNYFGXXUBEPF-UHFFFAOYSA-N copper oxygen(2-) titanium(4+) Chemical compound [O-2].[O-2].[Ti+4].[Ti+4].[Cu+2] UXMNYFGXXUBEPF-UHFFFAOYSA-N 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 abstract description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000005476 size effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000006557 surface reaction Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
A kind of preparation method strengthening the aluminum matrix composite of particle-compatible process in copper alloy interface, raw materials comprises 100 weight parts matrix alloys, 8-10 weight part strengthens the refining agent of particle and 0.05-0.08 weight part, do the cast aluminium alloy Z of 75-80 weight part selected by described matrix alloy? AlSi8MgBe, the copper alloy Cu20Ni20Mn of 15-20 weight part and the copper alloy Cu20Ni35Mn of 5-8 weight part, described enhancing particle is wolfram varbide, four acicular type zinc oxide crystal whisker, the combination of silicon carbide and nano titanium oxide, four kinds of weight ratios strengthening particle are (4-4.5): (3-3.5): (1-1.5): (2-2.5), Al-Cu based composite prepared by the present invention is lightweight, specific tenacity specific rigidity is high, thermal expansivity is low, there is good thermal conductivity and wear-resistant wear resistance, and preparation is than being easier to, low and the wild phase of cost Dispersed precipitate and there is isotropy in matrix, be applicable to various complex stress condition.
Description
Technical field
The present invention relates to new material technology field, be specifically related to the preparation method of the aluminum matrix composite of a kind of enhancing for brake flange particle-compatible process in copper alloy interface.
Background technology
Brake flange is the important component part of brake system of car, and the quality of its braking ability is directly connected to the driving safety of vehicle.Now widely used cast iron brake flange makes its surface temperature up to 600 DEG C because of drag friction heating, and its working surface temperature is very high and thermograde large, easily forms focus and produces hot tearing, and the wear resistance of cast iron brake flange is poor.In current industry, trial aluminium alloy replaces cast iron materials Cast brake disc, although its lightweight, good heat conductivity, its intensity and hardness lower, hinder its application on brake flange; Current part Chinese patent discloses and strengthens by adding in cast aluminium alloy the mechanical property that particle such as silicon carbide improves aluminum matrix composite, but silicon carbide is as nonmetallic compound, the matrix alloy of melting is not moistening for enhancing particle, and easily and between matrix alloy easily there is surface reaction in wild phase particle, such as silicon carbide and alloy matrix aluminum are nonwetting mutually, and silicon carbide is unstable in aluminum alloy melt, will in aluminium alloy generation chemical reaction, at the compd A l of Interface debond instability
4c
3; Because interface is matrix material and important integral part thereof, the combination degree (i.e. consistency) at interface largely determines the character of matrix material.
Summary of the invention
The invention provides a kind of preparation method strengthening the aluminum matrix composite of particle-compatible process in copper alloy interface, it is as the material of brake flange, existing cast iron brake flange Heavy Weight, poor thermal conductivity can be solved, wear no resistance, the easy defect such as hot tearing, existing aluminum matrix composite causes performance also not satisfactory defect because interface compatibility is poor can be solved simultaneously.
The present invention is achieved by the following technical solutions: raw materials comprises 100 weight parts matrix alloys, 8-10 weight part strengthens the refining agent of particle and 0.05-0.08 weight part, the cast aluminium alloy ZAlSi8MgBe of 75-80 weight part selected by described matrix alloy, the copper alloy Cu20Ni20Mn of 15-20 weight part and the copper alloy Cu20Ni35Mn of 5-8 weight part, described enhancing particle is wolfram varbide, four acicular type zinc oxide crystal whisker, the combination of silicon carbide and nano titanium oxide, four kinds of weight ratios strengthening particle are (4-4.5): (3-3.5): (1-1.5): (2-2.5), described refining agent is mishmetal, and mishmetal is made up of yttrium, berkelium and lanthanum, and the mass ratio of three is 1:(0.20-0.22): (0.30-0.32), concrete preparation process is as follows:
(1), in cast aluminium alloy ZAlSi8MgBe add mishmetal, mixing post-heating obtains aluminum-based matrix alloy liquation to 750-800 DEG C of fusing;
(2), in copper alloy Cu20Ni20Mn add enhancing particle: four acicular type zinc oxide crystal whisker and wolfram varbide, be mixed and heated to 1050-1100 DEG C and stir and obtain wolfram varbide-ZnOw copper base matrix alloy wetting liquid;
(3), in copper alloy Cu20Ni35Mn add enhancing particle: silicon carbide and nano titanium oxide, be mixed and heated to 980-1000 DEG C and stir and obtain silicon carbide-nanometer titanium dioxide titanium copper base matrix alloy wetting liquid;
(4), by the copper base matrix alloy wetting liquid that step (2), (3) are obtained respectively join the aluminum-based matrix alloy liquation in step (1), temperature control 1150-1200 DEG C is also stirred 1-1.5 hour under nitrogen protection; Then resin bonded sand mould casting obtains matrix material;
(5), by matrix material at 600-650 DEG C of solution treated 6-8 hour, quenching, then at the 350-400 DEG C of type Al-Cu based composite that is enhanced for ageing treatment 10-12 hour.
Above-mentioned steps is more preferably: the particle diameter of described silicon carbide is 10-12 μm, the particle size of described wolfram varbide is 50-60 μm, the four acicular type zinc oxide crystal whisker that described four acicular type zinc oxide crystal whisker is length is 10-12 μm, base diameter is 1-1.5 μm, described nano titanium oxide particle diameter is 40-50nm.
By being used first respectively by enhancing ion, Cu20Ni20Mn and Cu20Ni35Mn fused solution is moistening (facts have proved that wolfram varbide, both four acicular type zinc oxide crystal whiskers and Cu20Ni20Mn fused solution all can be fully wetting in the present invention, silicon carbide, both nano titanium oxides can be fully wetting with Cu20Ni35Mn), thus improve the interface cohesion degree strengthening ion and main body alloy matrix aluminum material; Simultaneously because wolfram varbide has good hardness, chemical stability and thermal conductivity, therefore add the mechanical properties such as the hardness that can improve matrix material in matrix material to as enhancing particle; The crystalline structure dispersion strengthening the solid of particle four acicular type zinc oxide crystal whisker can play skeleton function in the base, unique three-D space structure makes the gripping power of itself and matrix larger, reinforced effects is more remarkable, tensile strength is obviously increased, and horizontal and vertical tensile strength numerical value is substantially identical, isotropically strengthen the mechanical property of body material, improve matrix strength and processing characteristics significantly; By adding SiC at matrix material, not only can improve matrix material thermostability, mechanical property and wear resistance, but also thermotolerance and the creep-resistant property of matrix material can be improved, and can thermal expansivity be reduced; Nano titanium oxide (TiO
2) there is distinctive nanometer size effect, large specific surface area, have stronger interfacial interaction, it can strengthen Ion Phase with other and be combined and fill, and plays synergy, TiO
2the supporting capacity of matrix material can be improved, make up other strengthen particle-filled less than barren district, thus improve the wear resisting property of matrix material.Nickel in copper-based material can improve the acid-alkali-corrosive-resisting of copper pipe, high temperature corrosion and welding property, in addition nickel can also be used as " VITAMIN " of metallurgical industry, easy sulphur, nitrogen, the direct chemical combination of oxygen under high temperature, with there is deoxidation, denitrogenate, the effect of desulfuration, reduce the content of oxygen, nitrogen, sulphur in matrix material; Rare earth metal yttrium, berkelium and lanthanum play deoxidization desulfuration effect in casting, both content can be made all to be reduced to less than 0.001%, and to change the state of inclusion, crystal grain thinning, thus improve the processing characteristics of alloy material, improve intensity, toughness, corrosion-resistant and oxidation-resistance etc.Facts have proved in a word, Al-Cu based composite prepared by the present invention is lightweight, specific tenacity specific rigidity is high, thermal expansivity is low, there is good thermal conductivity and wear-resistant wear resistance, and preparation than being easier to, the low and wild phase of cost Dispersed precipitate, interface cohesion in matrix well and have isotropy, be applicable to various complex stress condition.
Embodiment
Below by way of specific embodiment, the present invention is described in detail.
Embodiment 1
A kind of preparation method strengthening the aluminum matrix composite of particle-compatible process in copper alloy interface, raw materials comprises 100 weight parts matrix alloys, 8-10 weight part strengthens the refining agent of particle and 0.05-0.08 weight part, cast aluminium alloy ZAlSi8MgBe(and ZL116 of 75-80 weight part selected by described matrix alloy, the massfraction of its each element is: Si=6.5-7.5%, Mg=0.35-0.55%, Ti=0.1-0.3%, Be=0.15 ~ 0.40, surplus is Al), the copper alloy Cu20Ni20Mn(of 15-20 weight part forms: nickel 19.85%, manganese 19.69%, iron 0.29%, surplus is copper) and the copper alloy Cu20Ni35Mn(of 5-8 weight part form: nickel 19.85%, manganese 34.94%, iron 0.34%, surplus is copper), enhancing particle is wolfram varbide, four acicular type zinc oxide crystal whisker, the combination of silicon carbide and nano titanium oxide, four kinds of weight ratios strengthening particle are (4-4.5): (3-3.5): (1-1.5): (2-2.5), the particle diameter of silicon carbide is 10-12 μm, the particle size of wolfram varbide is 50-60 μm, four acicular type zinc oxide crystal whisker is length is 10-12 μm, base diameter is the four acicular type zinc oxide crystal whisker of 1-1.5 μm, nano titanium oxide particle diameter is 40-50nm, refining agent is mishmetal, and mishmetal is made up of yttrium, berkelium and lanthanum, and the mass ratio of three is 1:(0.20-0.22): (0.30-0.32), concrete preparation process is as follows:
(1), in cast aluminium alloy ZAlSi8MgBe add mishmetal, mixing post-heating obtains aluminum-based matrix alloy liquation to 750-800 DEG C of fusing;
(2), in copper alloy Cu20Ni20Mn add enhancing particle: four acicular type zinc oxide crystal whisker and wolfram varbide, be mixed and heated to 1050-1100 DEG C and stir and obtain wolfram varbide-ZnOw copper base matrix alloy wetting liquid;
(3), in copper alloy Cu20Ni35Mn add enhancing particle: silicon carbide and nano titanium oxide, be mixed and heated to 980-1000 DEG C and stir and obtain silicon carbide-nanometer titanium dioxide titanium copper base matrix alloy wetting liquid;
(4), by the copper base matrix alloy wetting liquid that step (2), (3) are obtained respectively join the aluminum-based matrix alloy liquation in step (1), temperature control 1150-1200 DEG C is also stirred 1-1.5 hour under nitrogen protection; Then resin bonded sand mould casting obtains matrix material;
(5), by matrix material at 600-650 DEG C of solution treated 6-8 hour, quenching, then at the 350-400 DEG C of type Al-Cu based composite that is enhanced for ageing treatment 10-12 hour.
The finished product that embodiment 1 is prepared and reinforced aluminium Cu-base composites sampling analysis, observe by scanning electron microscope (SEM) and find that matrix alloy is good with the interface cohesion strengthening ion, even if observe under 1000 times, closely, there is not obvious defect in interface cohesion.Through testing inspection embodiment 1 prepare composite material tensile strength and yield strength average energy reach 750-850MPa, hardness average out to 300-320 (5/250/30) HBS, compared to ZAlSi8MgBe, intensity improves more than 80%, and hardness improves more than 200%; Even if compared with the aluminum matrix composite of existing SiC reinforcement, intensity, hardness improve also all more than 50%.And composite weight comparatively cast iron alleviates 28-30%, be approximately 180-190W/ (m.k) 100-300 DEG C of thermal conductivity, be about 6 times of cast iron (HT250), compared with cast iron, thermal conductivity improves greatly; And under brake operating mode rub(bing)test condition, matrix material is lower than cast iron materials friction surface temperature, stable friction factor; Bench testing shows, under the frequent braking condition of high speed, relative to cast iron brake flange, composite material brake disc has larger braking moment and higher brake stability, can significantly improve braking.
Claims (2)
1. one kind strengthens the preparation method of the aluminum matrix composite of particle-compatible process in copper alloy interface, it is characterized in that, raw materials comprises 100 weight parts matrix alloys, 8-10 weight part strengthens the refining agent of particle and 0.05-0.08 weight part, the cast aluminium alloy ZAlSi8MgBe of 75-80 weight part selected by described matrix alloy, the copper alloy Cu20Ni20Mn of 15-20 weight part and the copper alloy Cu20Ni35Mn of 5-8 weight part, Cu20Ni20Mn forms: nickel 19.85%, manganese 19.69%, iron 0.29%, surplus is copper, copper alloy Cu20Ni35Mn forms: nickel 19.85%, manganese 34.94%, iron 0.34%, surplus is copper, described enhancing particle is the combination of wolfram varbide, four acicular type zinc oxide crystal whisker, silicon carbide and nano titanium oxide, and four kinds of weight ratios strengthening particle are (4-4.5): (3-3.5): (1-1.5): (2-2.5), described refining agent is mishmetal, and mishmetal is made up of yttrium, berkelium and lanthanum, and the mass ratio of three is 1:(0.20-0.22): (0.30-0.32), concrete preparation process is as follows:
(1), in cast aluminium alloy ZAlSi8MgBe add mishmetal, mixing post-heating obtains aluminum-based matrix alloy liquation to 750-800 DEG C of fusing;
(2), in copper alloy Cu20Ni20Mn add enhancing particle: four acicular type zinc oxide crystal whisker and wolfram varbide, be mixed and heated to 1050-1100 DEG C and stir and obtain wolfram varbide-ZnOw copper base matrix alloy wetting liquid;
(3), in copper alloy Cu20Ni35Mn add enhancing particle: silicon carbide and nano titanium oxide, be mixed and heated to 980-1000 DEG C and stir and obtain silicon carbide-nanometer titanium dioxide titanium copper base matrix alloy wetting liquid;
(4), by the copper base matrix alloy wetting liquid that step (2), (3) are obtained respectively join the aluminum-based matrix alloy liquation in step (1), temperature control 1150-1200 DEG C is also stirred 1-1.5 hour under nitrogen protection; Then resin bonded sand mould casting obtains matrix material;
(5), by matrix material at 600-650 DEG C of solution treatment 6-8 hour, quenching, then at the 350-400 DEG C of type Al-Cu based composite that is enhanced for ageing treatment 10-12 hour.
2. the preparation method of the aluminum matrix composite of enhancing particle according to claim 1-compatible process in copper alloy interface, it is characterized in that, the particle diameter of described silicon carbide is 10-12 μm, the particle size of described wolfram varbide is 50-60 μm, the four acicular type zinc oxide crystal whisker that described four acicular type zinc oxide crystal whisker is length is 10-12 μm, base diameter is 1-1.5 μm, described nano titanium oxide particle diameter is 40-50nm.
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| CN105256176A (en) * | 2015-10-20 | 2016-01-20 | 安徽天祥空调科技有限公司 | High-strength dense light and thin aluminum alloy sheet for air conditioner radiator and manufacturing method for high-strength dense light and thin aluminum alloy sheet |
| CN105671463A (en) * | 2016-02-01 | 2016-06-15 | 东莞品派实业投资有限公司 | Tetrapod-shaped zinc oxide whisker reinforced aluminum alloy hub and preparing method thereof |
| CN105734360A (en) * | 2016-03-31 | 2016-07-06 | 山东正凯机械科技有限公司 | Preparation method of Si-Al alloy material for automobile brake disc |
| CN105882676A (en) * | 2016-04-25 | 2016-08-24 | 邹平县供电公司 | Ladder roll-over prevention device for overhead contact system |
| CN105927024A (en) * | 2016-05-06 | 2016-09-07 | 国网山东省电力公司滨州市滨城区供电公司 | Low-voltage network electric pole |
| CN106637003B (en) * | 2016-12-23 | 2018-03-27 | 安徽景昌铝业有限公司 | A kind of aluminium section bar tempering processing method |
| CN107400816B (en) * | 2017-08-10 | 2019-03-12 | 西迪技术股份有限公司 | A kind of Cu-base composites and preparation method thereof |
| CN117165802B (en) * | 2023-11-02 | 2024-01-16 | 国网山东省电力公司烟台供电公司 | Preparation method of multi-scale particle reinforced wear-resistant aluminum-based composite material |
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| CN103464927B (en) * | 2013-09-06 | 2015-11-18 | 河南理工大学 | A kind of aluminium copper silicon cerium solder for enhancing aluminum-base composite material by silicon carbide particles soldering and preparation method thereof |
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