CN103088225B - Preparation method of oxygen-free copper base alloy for propeller - Google Patents
Preparation method of oxygen-free copper base alloy for propeller Download PDFInfo
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- CN103088225B CN103088225B CN201210560407.0A CN201210560407A CN103088225B CN 103088225 B CN103088225 B CN 103088225B CN 201210560407 A CN201210560407 A CN 201210560407A CN 103088225 B CN103088225 B CN 103088225B
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- copper
- base alloy
- production method
- copper base
- water screw
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- 239000010949 copper Substances 0.000 title claims abstract description 50
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 43
- 239000000956 alloy Substances 0.000 title claims abstract description 24
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title abstract 4
- 239000002671 adjuvant Substances 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 238000010891 electric arc Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000005266 casting Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 claims description 18
- 229910052684 Cerium Inorganic materials 0.000 claims description 6
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 3
- 229910052734 helium Inorganic materials 0.000 claims description 3
- 239000001307 helium Substances 0.000 claims description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052711 selenium Inorganic materials 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 229910052718 tin Inorganic materials 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 4
- 238000003723 Smelting Methods 0.000 abstract 1
- 238000000227 grinding Methods 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- 230000002929 anti-fatigue Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 229910000912 Bell metal Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The invention discloses a preparation method of oxygen-free copper base alloy for a propeller. The preparation method comprises the following steps of: preparing raw materials consisting of 0.2%-1.0% of Zn, 0.3%-0.5% of Sn, 0.3%-1.0% of Ni, 0.01%-0.05% of Si, 0.03%-0.05% of Se, 0.01%-0.02% of Pr, 0.005%-0.015% of Ce, 0.3%-0.5% of Al, 0.5%-1.0% of P, 1%-1.5% of Ag, 0.5%-1.0% of Mg and the balance of Cu; evenly mixing and grinding the raw materials except for the Cu in a ball mill to obtain an adjuvant mixture; filling the adjuvant mixture and the Cu into an electric-arc furnace in batches, and electrifying for smelting the mixture and the Cu; and carrying out ingot casting to obtain a copper ingot through a vacuum process. The propeller prepared by the preparation method disclosed by the invention has the advantages of high wear resistance and corrosion resistance.
Description
Technical field
The present invention relates to field of metallurgy, relate in particular to a kind of production method of the anaerobic copper base alloy for water screw.
Background technology
Existing domestic and international water screw generally adopts bell metal manufacture.When running up, due to the impact of the factors such as cavity, corrosion and friction, existing water screw easily occur fracture or work-ing life shorter.Although prior art is also improved the material of water screw, the safety coefficient of associated materials is still lower at present, and also can not reach actual needs far away work-ing life.
Summary of the invention
The technical problem to be solved in the present invention is, for the above-mentioned defect of prior art, provides a kind of production method of corrosion resistant, a kind of anaerobic copper base alloy for water screw with good mechanical property and anti-fatigue performance.
For addressing the above problem, the present invention solves the adoptable technical scheme of its technical problem and is:
For a production method for the anaerobic copper base alloy of water screw, it comprises the following steps:
S1, according to massfraction ratio, take raw materials, this raw materials is that Cu forms by 0.2～1.0% Zn, 0.3～0.5% Sn, 0.3～1.0% Ni, 0.01～0.05% Si, 0.03～0.05% Se, 0.01～0.02% Pr, 0.005～0.015% Ce, 0.3～0.5% Al, 0.5～1.0% P, 1～1.5% Ag, 0.5～1.0% Mg and surplus;
S2, the raw material beyond copper removal in above-mentioned raw materials mixed and ground in ball mill, obtaining adjuvant intermixture;
S3, pack described adjuvant intermixture and copper into electric arc furnace, energising fusing, adopts induction stirring during fusing in batches; The addition manner of described adjuvant intermixture is: the furnace roof at described electric arc furnace is provided with nozzle, when described electric arc furnace melts copper, according to predefined injection rate, described adjuvant intermixture is sprayed in copper liquid, the ratio that makes the quality of the adjuvant intermixture that finally sprays into account for alloy liquid total mass is 3.5～5.5%;
S4, employing vacuum method ingot casting are copper ingot, and pouring temperature is 1340-1350 ℃.
According to the production method of the anaerobic copper base alloy for water screw of the present invention: at S2, example is added to each raw material in ball mill in mass ratio, mixes and grinds, and obtains the adjuvant intermixture of certain mass, adds copper according to 20-30 weight multiple.
According to the production method of the anaerobic copper base alloy for water screw of the present invention, in S3, when melting copper and adjuvant intermixture, in stove, adopt helium or carbon monoxide protection.
According to the production method of the anaerobic copper base alloy for water screw of the present invention, the mass ratio of described Pr and Ce is 1～2: 1.
According to the production method of the anaerobic copper base alloy for water screw of the present invention, the mass percent of described Si is 0.02～0.03%.
According to the production method of the anaerobic copper base alloy for water screw of the present invention, the mass percent of described P is 0.5～0.8%.
Through verification experimental verification, the anaerobic copper base alloy that adopts the present invention to produce for the production method of the anaerobic copper base alloy of water screw has good mechanical property, and for example tensile property and impact property are better than current material; Its corrosion resistance nature and anti-fatigue performance also surpass existing alloy material.
Will be appreciated that, the feature in the above each side of the present invention is independent assortment within the scope of the invention, and is not subject to the restriction of its order---as long as the technical scheme after combination drops in connotation of the present invention.
Embodiment
Below in conjunction with embodiment, further illustrate the present invention, should understand these embodiments is only not used in and limits the scope of the invention for the present invention is described, after reading the present invention, those skilled in the art all falls within the application's claim limited range to the modification of the various equivalent form of values of the present invention.
For a production method for the anaerobic copper base alloy of water screw, it comprises the following steps:
S1, according to massfraction ratio, take raw materials, this raw material is that Cu forms by 0.2～1.0% Zn, 0.3～0.5% Sn, 0.3～1.0% Ni, 0.01～0.05% Si, 0.03～0.05% Se, 0.01～0.02% Pr, 0.005～0.015% Ce, 0.3～0.5% Al, 0.5～1.0% P, 1～1.5% Ag, 0.5～1.0% Mg and surplus; In an embodiment of the present invention, the total amount of adjuvant intermixture accounts for 3.5～5.5% of copper alloy total mass.In a further embodiment, the mass ratio of Pr and Ce is 1～2: 1.In embodiment further, the mass percent that the mass percent of Si is 0.02～0.03%, P is 0.5～0.8%.
S2, the raw material beyond copper removal in above-mentioned raw materials mixed and ground in ball mill, obtaining adjuvant intermixture; In this step, example is added to each raw material in ball mill in mass ratio, mix and grind, obtain the adjuvant intermixture of certain mass, according to 20-30 weight multiple, add copper, adopt the method can prevent a certain amount of adjuvant intermixture of loss in ball mill, thereby cause the decline of content, affect the performance of the finished product.
S3, pack adjuvant intermixture and copper into electric arc furnace, energising fusing, adopts induction stirring during fusing in batches; Furnace roof at electric arc furnace is provided with nozzle, when electric arc furnace melts copper, according to predefined injection rate, adjuvant intermixture is sprayed in copper liquid, and the ratio that makes the quality of the adjuvant intermixture that finally sprays into account for alloy liquid total mass is 3.5～5.5%.In S3, when melting copper and adjuvant intermixture, adopt helium or carbon monoxide protection, or adopt vacuum melting in stove, vacuum tightness is 10
-4pa.
S4, employing vacuum method ingot casting are copper ingot, and pouring temperature is 1340-1350 ℃.
Complete according to the method described above the following example group (following content is per-cent, each embodiment do three parallel):
| Group | Zn | Sn | Ni | Si | Se | Pr | Ce | Al | P | Ag | Mg | Total amount |
| 1 | 0.3 | 0.3 | 1.0 | 0.01 | 0.05 | 0.01 | 0.005 | 0.5 | 1.0 | 1 | 0.5 | 4.675 |
| 2 | 0.4 | 0.35 | 0.9 | 0.02 | 0.045 | 0.02 | 0.008 | 0.45 | 0.9 | 1.1 | 0.6 | 4.793 |
| 3 | 0.5 | 0.40 | 0.8 | 0.03 | 0.040 | 0.01 | 0.010 | 0.40 | 0.8 | 1.2 | 0.7 | 4.88 |
| 4 | 0.6 | 0.45 | 0.7 | 0.04 | 0.035 | 0.02 | 0.012 | 0.35 | 0.7 | 1..3 | 0.8 | 3.707 |
| 5 | 0.7 | 0.50 | 0.6 | 0.05 | 0.030 | 0.01 | 0.015 | 0.30 | 0.6 | 1.4 | 0.9 | 5.105 |
| 6 | 0.8 | 0.3 | 0.5 | 0.01 | 0.05 | 0.02 | 0.005 | 0.5 | 0.5 | 1.5 | 1.0 | 5.185 |
| 7 | 0.9 | 0.35 | 0.4 | 0.02 | 0.045 | 0.01 | 0.008 | 0.45 | 1.0 | 1 | 0.5 | 4.683 |
| 8 | 1.0 | 0.40 | 0.3 | 0.03 | 0.040 | 0.02 | 0.010 | 0.40 | 0.9 | 1.1 | 0.6 | 4.79 |
| 9 | 0.3 | 0.45 | 1.0 | 0.04 | 0.035 | 0.01 | 0.012 | 0.35 | 0.8 | 1.2 | 0.7 | 4.897 |
| 10 | 0.4 | 0.50 | 0.9 | 0.05 | 0.030 | 0.02 | 0.015 | 0.30 | 0.7 | 1..3 | 0.8 | 3.715 |
| 11 | 0.5 | 0.3 | 0.8 | 0.01 | 0.05 | 0.01 | 0.005 | 0.5 | 0.6 | 1.4 | 0.9 | 5.075 |
| 12 | 0.6 | 0.35 | 0.7 | 0.02 | 0.045 | 0.02 | 0.008 | 0.45 | 0.5 | 1.5 | 1.0 | 5.193 |
| 13 | 0.7 | 0.40 | 0.6 | 0.03 | 0.040 | 0.01 | 0.010 | 0.40 | 1.0 | 1 | 0.5 | 4.68 |
| 14 | 0.8 | 0.45 | 0.5 | 0.04 | 0.035 | 0.02 | 0.012 | 0.35 | 0.9 | 1.1 | 0.6 | 4.807 |
| 15 | 0.9 | 0.50 | 0.4 | 0.05 | 0.030 | 0.01 | 0.015 | 0.30 | 0.8 | 1.2 | 0.7 | 4.905 |
| 16 | 1.0 | 0.3 | 0.3 | 0.01 | 0.05 | 0.02 | 0.005 | 0.5 | 0.7 | 1..3 | 0.8 | 3.685 |
| 17 | 0.3 | 0.35 | 1.0 | 0.02 | 0.045 | 0.01 | 0.008 | 0.45 | 0.6 | 1.4 | 0.9 | 5.083 |
| 18 | 0.4 | 0.40 | 0.9 | 0.03 | 0.040 | 0.02 | 0.010 | 0.40 | 0.5 | 1.5 | 1.0 | 5.19 |
| 19 | 0.5 | 0.45 | 0.8 | 0.04 | 0.035 | 0.01 | 0.012 | 0.35 | 1.0 | 1 | 0.5 | 4.697 |
| 20 | 0.6 | 0.50 | 0.7 | 0.05 | 0.030 | 0.02 | 0.015 | 0.30 | 0.9 | 1.1 | 0.6 | 4.815 |
| 21 | 0.7 | 0.3 | 0.6 | 0.01 | 0.05 | 0.01 | 0.005 | 0.5 | 0.8 | 1.2 | 0.7 | 4.875 |
| 22 | 0.8 | 0.35 | 0.5 | 0.02 | 0.045 | 0.02 | 0.008 | 0.45 | 0.7 | 1..3 | 0.8 | 3.693 |
| 23 | 0.9 | 0.40 | 0.4 | 0.03 | 0.040 | 0.01 | 0.010 | 0.40 | 0.6 | 1.4 | 0.9 | 5.08 |
| 24 | 1.0 | 0.45 | 0.3 | 0.04 | 0.035 | 0.02 | 0.012 | 0.35 | 0.5 | 1.5 | 1.0 | 5.207 |
Table 1
| Group | Tensile strength (KSI) | Shock strength (Aku) | Average weightless (mg/10h) | Duration of service (day) |
| 1 | 70 | 55 | 0.4 | 503 |
| 2 | 72 | 48 | 0.5 | 492 |
| 3 | 68.2 | 62 | 0.3 | 620 |
| 4 | 67.8 | 49 | 0.6 | 520 |
| 5 | 73.5 | 47 | 0.55 | 431 |
| 6 | 74.2 | 53 | 1.0 | 462 |
| 7 | 65.0 | 60 | 2.3 | 534 |
| 8 | 66.3 | 53 | 0.4 | 516 |
| 9 | 56.9 | 49 | 3.2 | 498 |
| 10 | 64.3 | 68 | 1.8 | 633 |
| 11 | 68.2 | 59 | 1.2 | 529 |
| 12 | 63.8 | 49 | 0.9 | 436 |
| 13 | 73.7 | 54 | 0.6 | 487 |
| 14 | 72.2 | 61 | 0.3 | 578 |
| 15 | 65.1 | 54 | 0.8 | 569 |
| 16 | 63.3 | 47 | 0.7 | 499 |
| 17 | 59.9 | 61 | 0.57 | 627 |
| 18 | 63.3 | 54 | 12 | 520 |
| 19 | 67.2 | 48 | 2.4 | 476 |
| 20 | 62.8 | 59 | 0.6 | 468 |
| 21 | 71.5 | 61 | 3.3 | 538 |
| 22 | 75.2 | 56 | 1.9 | 526 |
| 23 | 65.9 | 54 | 1.5 | 625 |
| 24 | 63.3 | 49 | 1.9 | 498 |
Table 2
Numerical value in table 2 is three parallel mean values in each embodiment, can find out that the oxygen free copper sill of prior art is far away higher than the duration of service of current material from above-mentioned table 2, and wear rate is also lower simultaneously.The excellent properties of this product makes it can be applied on the boats and ships of large-scale or key areas.
Claims (6)
1. for a production method for the anaerobic copper base alloy of water screw, it is characterized in that it comprises the following steps:
S1, according to massfraction ratio, take raw materials, this raw materials is that Cu forms by the Si of 0.2 ~ 1.0% Zn, 0.3 ~ 0.5% Sn, 0.3 ~ 1.0% Ni, 0.01 ~ 0.05 %, 0.03 ~ 0.05% Se, 0.01 ~ 0.02% Pr, 0.005 ~ 0.015% Ce, 0.3 ~ 0.5% Al, 0.5 ~ 1.0% P, 1 ~ 1.5% Ag, 0.5 ~ 1.0% Mg and surplus;
S2, the raw material beyond copper removal in above-mentioned raw materials mixed and ground in ball mill, obtaining adjuvant intermixture;
S3, pack described adjuvant intermixture and copper into electric arc furnace, energising fusing, adopts induction stirring during fusing in batches; The addition manner of described adjuvant intermixture is: the furnace roof at described electric arc furnace is provided with nozzle, when described electric arc furnace melts copper, according to predefined injection rate, described adjuvant intermixture is sprayed in copper liquid, the ratio that makes the quality of the adjuvant intermixture that finally sprays into account for alloy liquid total mass is 3.5 ~ 5.5%;
S4, employing vacuum method ingot casting are copper ingot, and pouring temperature is 1340-1350 ℃.
2. the production method of the anaerobic copper base alloy for water screw according to claim 1, its feature exists: in S2, example is added to each raw material in ball mill in mass ratio, mixes and grinds, obtain the adjuvant intermixture of certain mass, according to 20-30 weight multiple, add copper.
3. the production method of the anaerobic copper base alloy for water screw according to claim 1, is characterized in that: in S3, when melting copper and adjuvant intermixture, adopt helium or carbon monoxide protection in stove.
4. the production method of the anaerobic copper base alloy for water screw according to claim 1, is characterized in that: the mass ratio of described Pr and Ce is 1 ~ 2:1.
5. the production method of the anaerobic copper base alloy for water screw according to claim 1, is characterized in that: the mass percent of described Si is 0.02 ~ 0.03 %.
6. the production method of the anaerobic copper base alloy for water screw according to claim 1, is characterized in that: the mass percent of described P is 0.5 ~ 0.8%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210560407.0A CN103088225B (en) | 2012-12-21 | 2012-12-21 | Preparation method of oxygen-free copper base alloy for propeller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210560407.0A CN103088225B (en) | 2012-12-21 | 2012-12-21 | Preparation method of oxygen-free copper base alloy for propeller |
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| Publication Number | Publication Date |
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| CN103088225A CN103088225A (en) | 2013-05-08 |
| CN103088225B true CN103088225B (en) | 2014-08-20 |
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| CN100535148C (en) * | 2006-03-10 | 2009-09-02 | 江阴职业技术学院 | Manganese-based memory alloy with high-strength, plasticity and damping performances and production thereof |
| CN100433198C (en) * | 2006-05-30 | 2008-11-12 | 南昌大学 | A high-strength and high-conductivity copper-rare earth alloy material and its preparation process |
| CN101638736A (en) * | 2009-08-14 | 2010-02-03 | 卓美香 | Lead-free copper alloy with limited Al and preparation method thereof |
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