CN103589904B - A kind of high-strength wear-resistant copper alloy and pipe-making method thereof - Google Patents
A kind of high-strength wear-resistant copper alloy and pipe-making method thereof Download PDFInfo
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- CN103589904B CN103589904B CN201310357208.4A CN201310357208A CN103589904B CN 103589904 B CN103589904 B CN 103589904B CN 201310357208 A CN201310357208 A CN 201310357208A CN 103589904 B CN103589904 B CN 103589904B
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- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims description 17
- 239000000956 alloy Substances 0.000 claims abstract description 28
- 239000000126 substance Substances 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 28
- 229910045601 alloy Inorganic materials 0.000 claims description 20
- 239000010949 copper Substances 0.000 claims description 16
- 229910001369 Brass Inorganic materials 0.000 claims description 14
- 239000010951 brass Substances 0.000 claims description 14
- ALKZAGKDWUSJED-UHFFFAOYSA-N dinuclear copper ion Chemical compound [Cu].[Cu] ALKZAGKDWUSJED-UHFFFAOYSA-N 0.000 claims description 10
- 239000011572 manganese Substances 0.000 claims description 9
- 238000005266 casting Methods 0.000 claims description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 7
- 229910052748 manganese Inorganic materials 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 238000000137 annealing Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- -1 sodium aluminum fluoride Chemical compound 0.000 claims description 6
- 238000003723 Smelting Methods 0.000 claims description 5
- 239000003610 charcoal Substances 0.000 claims description 5
- 238000009749 continuous casting Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 5
- 229910017566 Cu-Mn Inorganic materials 0.000 claims description 4
- 229910017871 Cu—Mn Inorganic materials 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000007670 refining Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000011133 lead Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- RIRXDDRGHVUXNJ-UHFFFAOYSA-N [Cu].[P] Chemical compound [Cu].[P] RIRXDDRGHVUXNJ-UHFFFAOYSA-N 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910000714 At alloy Inorganic materials 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- TVZPLCNGKSPOJA-UHFFFAOYSA-N copper zinc Chemical compound [Cu].[Zn] TVZPLCNGKSPOJA-UHFFFAOYSA-N 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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- Extrusion Of Metal (AREA)
- Continuous Casting (AREA)
Abstract
The present invention relates to a kind of high-strength wear-resistant copper alloy material. It is characterized in that comprising the chemical composition of following percent mass: Cu57.0��60.0; Al1.5��2.0; Mn2.0��4.0; Fe��0.25; Si0.6��0.9; Pb0.3��0.6; All the other are Zn. The high-strength wear-resistant copper alloy of the present invention has good comprehensive mechanical performance.
Description
Technical field
The present invention relates to a kind of alloy and manufacture method thereof, espespecially a kind of high-strength wear-resistant copper alloy and pipe-making method thereof.
Background technology
The complicated Cu alloy material of many units has excellent over-all properties, extensively for machinery, automobile and other industries. Along with these industry improving constantly material performance requirement, developing and have good comprehensive mechanical performance, such as higher tensile strength, yield strength, good plasticity, reliable hardness, the material especially at high temperature possessing better performance becomes the task of top priority. Extensively need to be improved further for Cu alloy material comprehensive mechanical performance mechanical, automobile and other industries at present.
Summary of the invention
It is an object of the invention to provide a kind of good combination property, the brass material of better performances under high temperature. In copper zinc alloy, add appropriate aluminium, iron, manganese, silicon and lead specifically, and carry out optimum combination, it is proposed to reasonably content and manufacture method.
The object of the present invention is achieved by the following measures: brass material comprises the chemical composition of following percent mass: Cu57.0��60.0%; Al1.5��2.0%; Mn2.0��4.0%; Fe��0.25%; Si0.6��0.9%; Pb0.3��0.6%; Surplus is Zn; Other��0.4%.
The active chemical design considerations of high-strength wear-resistant copper alloy of the present invention and the reason of restriction content range are as follows:
Al: firm oxide film can be formed at alloy surface, it is to increase alloy is to the erosion resistance of gas, liquid, and improves intensity, the hardness of brass;
Mn: erosion resistance, thermostability and intensity can be improved after adding manganese;
Si: the intensity of alloy, hardness, casting fluidity can be improved, add Pb simultaneously and can reduce friction factor.
The present invention is high-strength wear-resistant copper alloy bar manufacture method, carries out melting with 1.5T middle frequency furnace, and processing step is:
1. first add about 200kg FM5908 at furnace bottom and consider material to be worth doing, then the alloys such as the electrolytic copper copper coin of 60��70kg, 3.5��5kg aluminium ingot, 15��30kgCu-Mn master alloy (master alloy manganese content is 35%), Si1.5��2.5kg and simple substance are added the fusing that heats up, add charcoal to cover simultaneously, temperature rises to 1100 DEG C, shorten smelting time as far as possible, reduce molten metal air-breathing;
2. after in stove, Cu melts completely, then FM5908 bits material is continued to add, after guaranteeing fusing completely, then add remaining 70��90kg electrolytic copper copper coin and it is cooled to about 1000 DEG C, then Pb0.7��1.5kg, Zn80��95kg are all added, it is ensured that after Zn melts completely, add sodium aluminum fluoride refining, stir, slagging-off, leave standstill 5��10 minutes;
3., after temperature is adjusted to 1050 DEG C��1120 DEG C, vertical semi-continuous casting is carried out;
4. required bar size it is expressed to after ingot casting being cut to certain length;
5. design drawing process according to product size again, and carry out stress relief annealing, meet material performance requirement.
The advantage of a kind of high-strength wear-resistant copper alloy of the present invention and manufacture method thereof is:
1. by the chemical Composition Control of FM5908 brass material being ensured as-cast structure is alpha+beta+strengthening phase+Pb phase, possesses good intensity and hardness, possesses good hot plastic deformation ability simultaneously, reduce being mingled with of ingot casting by control melting technology, erosion resistance, thermostability and intensity after adding manganese, can be improved; Adding silicon and can improve the intensity of alloy, hardness, casting fluidity, manganese and silicon form manganese silicon series intermetallic compound in Copper substrate and occur, as the strengthening phase in Copper substrate, the wear resisting property that improve material simultaneously; Add the cutting ability that Pb improves material;
2. the as-cast structure of FM5908 brass material is changed with the use of extrusion process, can turn into extruding from the 0��2 of as cast condition grade (coarse grain) 4��5 grades (relatively small grains) of state, its as-cast grain be carried out fragmentation and obtains small grains thus improve its tensile strength, hardness and unit elongation;
3. FM5908 brass material bar generation cold conditions viscous deformation is made with the use of drawing process so that intensity, the hardness of this material are further enhanced, and bar external diameter size is more accurate, reduce follow-up precision work process redundancy;
4. make the unrelieved stress after FM5908 brass bar viscous deformation by annealing process, avoid cracking and produce stress corrosion.
Embodiment
Embodiment one
The complicated Cu alloy material of a kind of high-strength abrasion-proof, its weight percentages of components is as follows:
1. first 200kgFM5908 brass bits material is added at furnace bottom, add electrolytic copper copper coin 60kg, aluminium ingot 4.8kg, Cu-Mn master alloy 28kg(manganese content 35% again, remaining as copper content), Si1.6kg, heat up fusing, and the P-Cu master alloy (phosphorus content 10��12%, remaining as copper content) simultaneously adding 0.7��0.8kg carries out deoxidation, add charcoal to cover, temperature of fusion rises to more than 1100 DEG C, shortens smelting time as far as possible, reduces alloy air-breathing;
2. check in stove and remove the gred after expecting fusing completely, add 0.4��0.5kgP-Cu alloy (phosphor copper) and carry out deoxidation, the FM5908 brass bits material of 200��250kg is added every 20��30 minutes, after guaranteeing fusing completely, it is incubated 5-10 minute, after insulation terminates, add remaining electrolytic copper copper coin 80kg to lower the temperature, heat up after adding remaining 0.7��0.8kgP-Cu master alloy and the fusing of 91kg zinc ingot again boiling 2-3 minute, adds sodium aluminum fluoride, slagging-off;
3., after temperature is adjusted to 1090 DEG C��1130 DEG C, vertical semi-continuous casting is carried out;
4. 1650T or 2500T extrusion machine is used to be expressed to required bar size after ingot casting being cut to certain length.
5. design drawing process according to product size again, and carry out stress relief annealing, meet material performance requirement.
Embodiment two
The complicated Cu alloy material of a kind of high-strength abrasion-proof, its weight percentages of components is as follows:
1. first 200kgFM5908 brass bits material is added at furnace bottom, add electrolytic copper copper coin 60kg, aluminium ingot 4.1kg, Cu-Mn master alloy 21kg(manganese content 35% again, remaining as copper content), Si1.8kg, heat up fusing, and the P-Cu master alloy (phosphorus content 10��12%, remaining as copper content) simultaneously adding 0.7��0.8kg carries out deoxidation, add charcoal to cover, temperature of fusion rises to more than 1100 DEG C, shortens smelting time as far as possible, reduces alloy air-breathing;
2. check in stove and remove the gred after expecting fusing completely, add 0.4��0.5kgP-Cu alloy (phosphor copper) and carry out deoxidation, the FM5908 brass bits material of 200��250kg is added every 20��30 minutes, after guaranteeing fusing completely, it is incubated 5-10 minute, after insulation terminates, add remaining electrolytic copper copper coin 85kg to lower the temperature, heat up after adding remaining 0.7��0.8kgP-Cu master alloy and the fusing of 92kg zinc ingot again boiling 2-3 minute, adds sodium aluminum fluoride, slagging-off;
3., after temperature is adjusted to 1090 DEG C��1130 DEG C, vertical semi-continuous casting is carried out;
4. 1650T or 2500T extrusion machine is used to be expressed to required bar size after ingot casting being cut to certain length.
5. design drawing process according to product size again, and carry out stress relief annealing, meet material performance requirement.
Embodiment three
The complicated Cu alloy material of a kind of high-strength abrasion-proof, its weight percentages of components is as follows:
1. first 200kgFM5908 brass bits material is added at furnace bottom, add electrolytic copper copper coin 60kg, aluminium ingot 3.6kg, Cu-Mn master alloy 14kg(manganese content 35% again, remaining as copper content), Si2.4kg, heat up fusing, and the P-Cu master alloy (phosphorus content 10��12%, remaining as copper content) simultaneously adding 0.7��0.8kg carries out deoxidation, add charcoal to cover, temperature of fusion rises to more than 1100 DEG C, shortens smelting time as far as possible, reduces alloy air-breathing;
2. check in stove and remove the gred after expecting fusing completely, add 0.4��0.5kgP-Cu alloy (phosphor copper) and carry out deoxidation, the FM5908 brass bits material of 200��250kg is added every 20��30 minutes, after guaranteeing fusing completely, it is incubated 5-10 minute, after insulation terminates, add remaining electrolytic copper copper coin 87kg to lower the temperature, heat up after adding remaining 0.7��0.8kgP-Cu master alloy and the fusing of 90kg zinc ingot again boiling 2-3 minute, adds sodium aluminum fluoride, slagging-off;
3., after temperature is adjusted to 1090 DEG C��1130 DEG C, vertical semi-continuous casting is carried out;
4. 1650T or 2500T extrusion machine is used to be expressed to required bar size after ingot casting being cut to certain length.
5. design drawing process according to product size again, and carry out stress relief annealing, meet material performance requirement.
Sampling carries out chemical composition analysis, and chemical composition and hardness result are in table 1.
Table 1
Material of the present invention carries out mechanical property test, and test-results is in table 2.
Table 2
Material of the present invention carries out mechanical behavior under high temperature test, and test-results is in table 2.
Table 3
Material of the present invention has good mechanical property, can extensively for the high-end product of automobile industry.
Claims (1)
1. the production method of a high-strength wear-resistant copper alloy material, it is characterised in that:
Described high-strength wear-resistant copper alloy material comprises the chemical composition of following percent mass: Cu57.0��60.0; Al1.5��2.0; Mn2.0��4.0; Fe��0.25; Si0.6��0.9; Pb0.3��0.6; All the other are Zn,
Its technological process of production is:
1. first 200kgFM5908 brass bits material is added at furnace bottom, add electrolytic copper copper coin 60��70kg again, aluminium ingot 3.5��5kg, manganese content be 35% Cu-Mn master alloy 15��30kg, Si1.5��2.5kg heat up fusing, add charcoal to cover simultaneously, temperature rises to 1100 DEG C, shorten smelting time as far as possible, reduce molten metal air-breathing;
2. after in stove, Cu melts completely, then FM5908 bits material is continued to add, after guaranteeing fusing completely, then add remaining 70��90kg electrolytic copper copper coin and it is cooled to 1000 DEG C, then Pb0.7��1.5kg, Zn80��95kg are all added, it is ensured that after Zn melts completely, add sodium aluminum fluoride refining, stir, slagging-off, leave standstill 5��10 minutes;
3., after temperature is adjusted to 1050 DEG C��1120 DEG C, vertical semi-continuous casting is carried out;
4. 1650T or 2500T extrusion machine is used to be expressed to required bar size after ingot casting being cut to certain length;
5. design drawing process according to product size again, and carry out stress relief annealing, meet material performance requirement.
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| CN201310357208.4A CN103589904B (en) | 2013-08-16 | 2013-08-16 | A kind of high-strength wear-resistant copper alloy and pipe-making method thereof |
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| CN201310357208.4A CN103589904B (en) | 2013-08-16 | 2013-08-16 | A kind of high-strength wear-resistant copper alloy and pipe-making method thereof |
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| CN103589904B true CN103589904B (en) | 2016-06-01 |
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| CN105349828B (en) * | 2015-11-10 | 2018-02-16 | 武汉泛洲中越合金有限公司 | Cu alloy material and preparation method thereof |
| CN111455213A (en) * | 2020-05-27 | 2020-07-28 | 苏州撼力合金股份有限公司 | High-strength wear-resistant special brass alloy |
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| DE102005059391A1 (en) * | 2005-12-13 | 2007-06-14 | Diehl Metall Stiftung & Co.Kg | Copper-zinc alloy and synchronizer ring made from it |
| CN101705388A (en) * | 2009-11-03 | 2010-05-12 | 苏州撼力铜合金材料有限公司 | High-strength wear-resistant complex brass for automotive synchronizing ring |
| CN102766777B (en) * | 2012-07-12 | 2014-10-01 | 武汉泛洲中越合金有限公司 | High-strength aluminum-brass-copper alloy and preparation method thereof |
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