CN104694779A - B30 material and preparation method thereof - Google Patents
B30 material and preparation method thereof Download PDFInfo
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- CN104694779A CN104694779A CN201510021163.2A CN201510021163A CN104694779A CN 104694779 A CN104694779 A CN 104694779A CN 201510021163 A CN201510021163 A CN 201510021163A CN 104694779 A CN104694779 A CN 104694779A
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Abstract
The invention discloses a B30 material and a preparation method thereof. The prepared high-strength B30 material, the Rm is more than or equal to 750MPa, Rp 0.2 is more than or equal to 450MPa, A is more than or equal to 15%, Z is more than or equal to 25%, the interface of a strengthening phase and a matrix phase is a coherent interface, the tensile strength is greatly enhanced compared with that of the common B30 alloy, and the B30 material has good technical application and market prospects in the field of ship and marine engineering and the like as a substitute material of the common B30.
Description
[technical field]
The present invention relates to a kind of B30 material and preparation method thereof, be specifically related to a kind of alloying B30 material improving intensity and preparation method thereof.
[background technology]
Known, B30 material, be also referred to as common copper-nickel alloy, refer to that nickeliferous 29.0% ~ 32.0%, surplus is the alloy of copper, this alloy is owing to having good mechanical property (Rm >=370MPa, Rp0.2 >=120MPa) and welding property, excellent sea water corrosion resistant, and there is unique resistance to marine biological polution performance and the good characteristic such as counter stress corrosion is insensitive, be widely used in the fields such as marine ship, power station, beach, sea water desaltination, ocean instrument, offshore platform, contact seawater structures, salt manufacturing engineering, seawater chemical industry.
But along with improving constantly of design requirements, modern ships and offshore engineering equipment are also had higher requirement to the B30 strength of materials, in order to satisfy the demand, improving the B30 strength of materials by interpolation alloying element is one of main method, practice at home and abroad proves, single or compound adds the intensity that the elements such as Be, Ti, Nb, Si can increase substantially B30 material, refers to following table.
The basic condition of domestic and international high-strength novel B30 material
It is strong and oxidizable that B30 alloy containing Be adds man-hour Be element evaporation in melting, the oxide compound of beryllium or toxicity of compound large, be one of serious industrial public nuisance, and Be is too expensive, greatly can improve the cost of the B30 alloy containing Be; Can the B30 alloy containing Ti be applied, and key is to solve the non-vacuum melting technique of alloy, and the alloying constituent that especially titanyl causes is difficult to control and titanyl compound such as to be mingled with at the problem; Containing the cold rolling poor-performing of B30 alloy of Nb, and the price of Nb is more expensive; B30 alloy containing Si has good processing performance, the techniques such as melting, casting, hot-work, cold working are substantially identical with general B30 material, but mainly there are the following problems: copper nisiloy strengthening phase is mainly separated out from matrix with the form of non-coherence, easily cause between strengthening phase and matrix phase, producing serious intergranular corrosion etc.
[summary of the invention]
For overcoming the deficiency existed in background technology, the invention provides a kind of B30 material and preparation method thereof, high strength B30 material prepared by the present invention, its tensile strength obtains larger raising than common B30 alloy, has good technology application and market outlook in the field such as boats and ships and oceanographic engineering as the equivalent material of common B30.
For realizing goal of the invention as above, the present invention adopts technical scheme as described below:
A kind of B30 material, comprises following composition by mass percentage:
Described B30 material, described copper, Ni, Fe, Mn add with BFe30-1-1 alloy form.
Described B30 material, described Addition ofelements is that any one or the compound in V or Cr or Mo is added.
Described B30 material, described V is particle vanadium.
Described B30 material, described Cr is sheet chromium.
Described B30 material, described Mo is molybdenum in sheet form.
A preparation method for B30 material, specifically comprises the steps:
One, B30 alloy cast ingot is prepared:
First take appropriate BFe30-1-1 alloy and Addition ofelements, then put it in smelting furnace, through melting, obtain B30 alloy cast ingot;
Two, B30 alloy cast ingot is annealed:
Connect step, the B30 alloy cast ingot upper step obtained carries out homogenizing annealing at 1050 ~ 1100 DEG C, and furnace cooling;
Three, tabular or tubulose B30 alloy is prepared:
Connect step, will carry out after hot rolling cogging cold rolling again at 900 ~ 950 DEG C through heat treated B30 alloy cast ingot, obtain tabular B30 alloy and maybe will carry out poling through heat treated B30 alloy cast ingot at 900 ~ 950 DEG C, obtain tubulose B30 alloy;
Four, to tabular or the annealing of tubulose B30 alloy:
After the tabular obtain upper step or tubulose B30 alloy carry out anneal at 750 ~ 800 DEG C, quenching can obtain the B30 material of high strength.
Adopt technical scheme as above, the present invention has superiority as described below:
A kind of B30 material of the present invention and preparation method thereof, high strength B30 material prepared by the present invention, Rm >=750MPa, Rp0.2 >=450MPa, A >=15%, Z >=25%, the interface of strengthening phase and matrix phase is coherent interface, tensile strength of the present invention obtains larger raising than common B30 alloy, has good technology application and market outlook in the field such as boats and ships and oceanographic engineering as the equivalent material of common B30.
[embodiment]
Can explain the present invention in more detail by the following examples, the present invention is not limited to the following examples;
A kind of B30 material of the present invention, comprises following composition by mass percentage:
Wherein said copper, Ni, Fe, Mn add with BFe30-1-1 alloy form; Described Addition ofelements is that any one or the compound in V or Cr or Mo is added; Described V is particle vanadium; Described Cr is sheet chromium; Described Mo is molybdenum in sheet form.
A preparation method for B30 material, specifically comprises the steps:
One, B30 alloy cast ingot is prepared:
First take appropriate BFe30-1-1 alloy and Addition ofelements, then put it in smelting furnace, through melting, obtain B30 alloy cast ingot;
Two, B30 alloy cast ingot is annealed:
Connect step, the B30 alloy cast ingot upper step obtained carries out homogenizing annealing at 1050 ~ 1100 DEG C, and furnace cooling;
Three, tabular or tubulose B30 alloy is prepared:
Connect step, will carry out after hot rolling cogging cold rolling again at 900 ~ 950 DEG C through heat treated B30 alloy cast ingot, obtain tabular B30 alloy and maybe will carry out poling through heat treated B30 alloy cast ingot at 900 ~ 950 DEG C, obtain tubulose B30 alloy;
Four, to tabular or the annealing of tubulose B30 alloy:
After the tabular obtain upper step or tubulose B30 alloy carry out anneal at 750 ~ 800 DEG C, quenching can obtain the B30 material of high strength.
The specific embodiment of the invention is as follows:
Shown in the alloying constituent of the high strength B30 material prepared in each embodiment and performance following table.
The alloying constituent of the high strength B30 material prepared in each embodiment and performance
Embodiment 1: preparation tabular BFe30-1-1+2V alloy
By embodiment 1 ingredients listed raw materials weighing, put into smelting furnace, through melting, obtain B30 alloy pig.By above-mentioned alloy pig after 1050 ~ 1100 DEG C of homo genizing annelaings, furnace cooling.Then through heat treated B30 alloy pig hot rolling cogging at 900 ~ 950 DEG C, cold rolling again after cooling, obtain tabular B30 alloy.Tabular B30 alloy is quenched after thermal treatment 6h at 750 ~ 800 DEG C, the high strength B30 alloy obtained.
Embodiment 2: prepare tubulose BFe30-1-1+5V alloy
By embodiment 2 ingredients listed raw materials weighing, put into smelting furnace, through melting, obtain B30 alloy pig.By above-mentioned alloy pig after 1050 ~ 1100 DEG C of homo genizing annelaings, furnace cooling.Then through heat treated B30 alloy pig poling at 900 ~ 950 DEG C, tubulose B30 alloy is obtained.Tubulose B30 alloy is quenched after thermal treatment 8h at 750 ~ 800 DEG C, the high strength B30 alloy obtained.
Embodiment 3: preparation tabular BFe30-1-1+8V alloy
By embodiment 3 ingredients listed raw materials weighing, put into smelting furnace, through melting, obtain B30 alloy pig.By above-mentioned alloy pig after 1050 ~ 1100 DEG C of homo genizing annelaings, furnace cooling.Then through heat treated B30 alloy pig hot rolling cogging at 900 ~ 950 DEG C, cold rolling again after cooling, obtain tabular B30 alloy.Tabular B30 alloy is quenched after thermal treatment 10h at 750 ~ 800 DEG C, the high strength B30 alloy obtained.
Embodiment 4: prepare tubulose BFe30-1-1+2Cr alloy
By embodiment 4 ingredients listed raw materials weighing, put into smelting furnace, through melting, obtain B30 alloy pig.By above-mentioned alloy pig after 1050 ~ 1100 DEG C of homo genizing annelaings, furnace cooling.Then through heat treated B30 alloy pig poling at 900 ~ 950 DEG C, tubulose B30 alloy is obtained.Tubulose B30 alloy is quenched after thermal treatment 6h at 750 ~ 800 DEG C, the high strength B30 alloy obtained.
Embodiment 5: preparation tabular BFe30-1-1+4Cr alloy
By embodiment 5 ingredients listed raw materials weighing, put into smelting furnace, through melting, obtain B30 alloy pig.By above-mentioned alloy pig after 1050 ~ 1100 DEG C of homo genizing annelaings, furnace cooling.Then through heat treated B30 alloy pig hot rolling cogging at 900 ~ 950 DEG C, cold rolling again after cooling, obtain tabular B30 alloy.Tabular B30 alloy is quenched after thermal treatment 8h at 750 ~ 800 DEG C, the high strength B30 alloy obtained.
Embodiment 6: prepare tubulose BFe30-1-1+8Cr alloy
By embodiment 6 ingredients listed raw materials weighing, put into smelting furnace, through melting, obtain B30 alloy pig.By above-mentioned alloy pig after 1050 ~ 1100 DEG C of homo genizing annelaings, furnace cooling.Then through heat treated B30 alloy pig poling at 900 ~ 950 DEG C, tubulose B30 alloy is obtained.Tubulose B30 alloy is quenched after thermal treatment 10h at 750 ~ 800 DEG C, the high strength B30 alloy obtained.
Embodiment 7: prepare tubulose BFe30-1-1+2Mo alloy
By embodiment 7 ingredients listed raw materials weighing, put into smelting furnace, through melting, obtain B30 alloy pig.By above-mentioned alloy pig after 1050 ~ 1100 DEG C of homo genizing annelaings, furnace cooling.Then through heat treated B30 alloy pig poling at 900 ~ 950 DEG C, tubulose B30 alloy is obtained.Tubulose B30 alloy is quenched after thermal treatment 6h at 750 ~ 800 DEG C, the high strength B30 alloy obtained.
Embodiment 8: prepare tubulose BFe30-1-1+6Mo alloy
By embodiment 8 ingredients listed raw materials weighing, put into smelting furnace, through melting, obtain B30 alloy pig.By above-mentioned alloy pig after 1050 ~ 1100 DEG C of homo genizing annelaings, furnace cooling.Then through heat treated B30 alloy pig poling at 900 ~ 950 DEG C, tubulose B30 alloy is obtained.Tubulose B30 alloy is quenched after thermal treatment 8h at 750 ~ 800 DEG C, the high strength B30 alloy obtained.
Embodiment 9: preparation tabular BFe30-1-1+8Mo alloy
By embodiment 9 ingredients listed raw materials weighing, put into smelting furnace, through melting, obtain B30 alloy pig.By above-mentioned alloy pig after 1050 ~ 1100 DEG C of homo genizing annelaings, furnace cooling.Then through heat treated B30 alloy pig hot rolling cogging at 900 ~ 950 DEG C, cold rolling again after cooling, obtain tabular B30 alloy.Tabular B30 alloy is quenched after thermal treatment 10h at 750 ~ 800 DEG C, the high strength B30 alloy obtained.
Embodiment 10: prepare tubulose BFe30-1-1+1V+1Cr alloy
By embodiment 10 ingredients listed raw materials weighing, put into smelting furnace, through melting, obtain B30 alloy pig.By above-mentioned alloy pig after 1050 ~ 1100 DEG C of homo genizing annelaings, furnace cooling.Then through heat treated B30 alloy pig poling at 900 ~ 950 DEG C, tubulose B30 alloy is obtained.Tubulose B30 alloy is quenched after thermal treatment 6h at 750 ~ 800 DEG C, the high strength B30 alloy obtained.
Embodiment 11: prepare tubulose BFe30-1-1+3.5V+3.5Cr alloy
By embodiment 11 ingredients listed raw materials weighing, put into smelting furnace, through melting, obtain B30 alloy pig.By above-mentioned alloy pig after 1050 ~ 1100 DEG C of homo genizing annelaings, furnace cooling.Then through heat treated B30 alloy pig poling at 900 ~ 950 DEG C, tubulose B30 alloy is obtained.Tubulose B30 alloy is quenched after thermal treatment 10h at 750 ~ 800 DEG C, the high strength B30 alloy obtained.
Embodiment 12: prepare tubulose BFe30-1-1+2.5V+3Mo alloy
By embodiment 12 ingredients listed raw materials weighing, put into smelting furnace, through melting, obtain B30 alloy pig.By above-mentioned alloy pig after 1050 ~ 1100 DEG C of homo genizing annelaings, furnace cooling.Then through heat treated B30 alloy pig poling at 900 ~ 950 DEG C, tubulose B30 alloy is obtained.Tubulose B30 alloy is quenched after thermal treatment 8h at 750 ~ 800 DEG C, the high strength B30 alloy obtained.
Embodiment 13: preparation tabular BFe30-1-1+5.5V+2.5Mo alloy
By embodiment 13 ingredients listed raw materials weighing, put into smelting furnace, through melting, obtain B30 alloy pig.By above-mentioned alloy pig after 1050 ~ 1100 DEG C of homo genizing annelaings, furnace cooling.Then through heat treated B30 alloy pig hot rolling cogging at 900 ~ 950 DEG C, cold rolling again after cooling, obtain tabular B30 alloy.Tabular B30 alloy is quenched after thermal treatment 10h at 750 ~ 800 DEG C, the high strength B30 alloy obtained.
Embodiment 14: preparation tabular BFe30-1-1+3.5Cr+4.5Mo alloy
By embodiment 14 ingredients listed raw materials weighing, put into smelting furnace, through melting, obtain B30 alloy pig.By above-mentioned alloy pig after 1050 ~ 1100 DEG C of homo genizing annelaings, furnace cooling.Then through heat treated B30 alloy pig hot rolling cogging at 900 ~ 950 DEG C, cold rolling again after cooling, obtain tabular B30 alloy.Tabular B30 alloy is quenched after thermal treatment 10h at 750 ~ 800 DEG C, the high strength B30 alloy obtained.
Embodiment 15: preparation tabular BFe30-1-1+5.0Cr+1.5Mo alloy
By embodiment 15 ingredients listed raw materials weighing, put into smelting furnace, through melting, obtain B30 alloy pig.By above-mentioned alloy pig after 1050 ~ 1100 DEG C of homo genizing annelaings, furnace cooling.Then through heat treated B30 alloy pig hot rolling cogging at 900 ~ 950 DEG C, cold rolling again after cooling, obtain tabular B30 alloy.Tabular B30 alloy is quenched after thermal treatment 10h at 750 ~ 800 DEG C, the high strength B30 alloy obtained.
Embodiment 16: preparation tabular BFe30-1-1+1.5V+3.0Cr+3.5Mo alloy
By embodiment 16 ingredients listed raw materials weighing, put into smelting furnace, through melting, obtain B30 alloy pig.By above-mentioned alloy pig after 1050 ~ 1100 DEG C of homo genizing annelaings, furnace cooling.Then through heat treated B30 alloy pig hot rolling cogging at 900 ~ 950 DEG C, cold rolling again after cooling, obtain tabular B30 alloy.Tabular B30 alloy is quenched after thermal treatment 10h at 750 ~ 800 DEG C, the high strength B30 alloy obtained.
Part not in the detailed description of the invention is prior art.
The embodiment selected in this article in order to open object of the present invention, currently thinks to be suitable for, but it is to be understood that the present invention is intended to comprise all changes belonging to the embodiment in this design and invention scope and improvement.
Claims (7)
1. a B30 material, is characterized in that: comprise following composition by mass percentage:
Ni 29.0～32.0%；
Fe 0.5～1.0%；
Mn 0.5～1.0%；
Addition ofelements 2.0 ~ 8.0%;
Surplus is copper.
2. B30 material according to claim 1, is characterized in that: described copper, Ni, Fe, Mn add with BFe30-1-1 alloy form.
3. B30 material according to claim 1, is characterized in that: described Addition ofelements is that any one or the compound in V or Cr or Mo is added.
4. B30 material according to claim 3, is characterized in that: described V is particle vanadium.
5. B30 material according to claim 3, is characterized in that: described Cr is sheet chromium.
6. B30 material according to claim 3, is characterized in that: described Mo is molybdenum in sheet form.
7. the preparation method of a kind of B30 material of a kind of B30 material according to the arbitrary claim of claim 1 ~ 6, is characterized in that: specifically comprise the steps:
One, B30 alloy cast ingot is prepared:
First take appropriate BFe30-1-1 alloy and Addition ofelements, then put it in smelting furnace, through melting, obtain B30 alloy cast ingot;
Two, B30 alloy cast ingot is annealed:
Connect step, the B30 alloy cast ingot upper step obtained carries out homogenizing annealing at 1050 ~ 1100 DEG C, and furnace cooling;
Three, tabular or tubulose B30 alloy is prepared:
Connect step, will carry out after hot rolling cogging cold rolling again at 900 ~ 950 DEG C through heat treated B30 alloy cast ingot, obtain tabular B30 alloy and maybe will carry out poling through heat treated B30 alloy cast ingot at 900 ~ 950 DEG C, obtain tubulose B30 alloy;
Four, to tabular or the annealing of tubulose B30 alloy:
After the tabular obtain upper step or tubulose B30 alloy carry out anneal at 750 ~ 800 DEG C, quenching can obtain the B30 material of high strength.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106480335A (en) * | 2015-09-01 | 2017-03-08 | 兴化市兴成铜业有限公司 | A kind of material containing high Alpaka |
| CN106480330A (en) * | 2015-09-01 | 2017-03-08 | 兴化市兴成铜业有限公司 | A kind of processing technology of the high Alpaka of B30 |
| CN106916996A (en) * | 2015-12-28 | 2017-07-04 | 北京有色金属研究总院 | A kind of tough wear-resistant copper alloy of low temperature superelevation and preparation method thereof |
| CN108060327A (en) * | 2017-12-22 | 2018-05-22 | 大连英蕴科技有限公司 | A kind of ship B30 material preparation methods |
| CN112410783A (en) * | 2020-11-19 | 2021-02-26 | 中国船舶重工集团公司第七0四研究所 | Repairing process suitable for composite layer of end cover B30 of marine lithium bromide refrigerating unit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050031892A1 (en) * | 2003-02-21 | 2005-02-10 | Jyoti Mazumder | Wear-resistant alloys particularly suited to aluminum-engine head-valve seats |
| CN101100715A (en) * | 2007-07-20 | 2008-01-09 | 中铝洛阳铜业有限公司 | Corrosion resistant cupronickel alloy material for plate heat exchanger and processing technique thereof |
| CN101709407A (en) * | 2009-11-06 | 2010-05-19 | 江阴新华宏铜业有限公司 | Preparation method of ferrimanganic copper-nickel tube |
| CN102634691A (en) * | 2012-05-15 | 2012-08-15 | 沈阳难熔金属研究所 | High-strength and high-corrosion-resistance cupronickel alloy and manufacturing method thereof |
| CN102644004A (en) * | 2012-04-26 | 2012-08-22 | 清华大学 | High-strength copper-nickel alloy and preparation process thereof |
| CN102773303A (en) * | 2012-07-16 | 2012-11-14 | 中国船舶重工集团公司第七二五研究所 | Copper nickel alloy large-size thick-wall seamless pipe manufacturing process |
-
2015
- 2015-01-16 CN CN201510021163.2A patent/CN104694779B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050031892A1 (en) * | 2003-02-21 | 2005-02-10 | Jyoti Mazumder | Wear-resistant alloys particularly suited to aluminum-engine head-valve seats |
| CN101100715A (en) * | 2007-07-20 | 2008-01-09 | 中铝洛阳铜业有限公司 | Corrosion resistant cupronickel alloy material for plate heat exchanger and processing technique thereof |
| CN101709407A (en) * | 2009-11-06 | 2010-05-19 | 江阴新华宏铜业有限公司 | Preparation method of ferrimanganic copper-nickel tube |
| CN102644004A (en) * | 2012-04-26 | 2012-08-22 | 清华大学 | High-strength copper-nickel alloy and preparation process thereof |
| CN102634691A (en) * | 2012-05-15 | 2012-08-15 | 沈阳难熔金属研究所 | High-strength and high-corrosion-resistance cupronickel alloy and manufacturing method thereof |
| CN102773303A (en) * | 2012-07-16 | 2012-11-14 | 中国船舶重工集团公司第七二五研究所 | Copper nickel alloy large-size thick-wall seamless pipe manufacturing process |
Non-Patent Citations (1)
| Title |
|---|
| 耿浩然 等: "《铸造锌、铜合金》", 30 September 2006 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106480335A (en) * | 2015-09-01 | 2017-03-08 | 兴化市兴成铜业有限公司 | A kind of material containing high Alpaka |
| CN106480330A (en) * | 2015-09-01 | 2017-03-08 | 兴化市兴成铜业有限公司 | A kind of processing technology of the high Alpaka of B30 |
| CN106916996A (en) * | 2015-12-28 | 2017-07-04 | 北京有色金属研究总院 | A kind of tough wear-resistant copper alloy of low temperature superelevation and preparation method thereof |
| CN106916996B (en) * | 2015-12-28 | 2019-02-05 | 北京有色金属研究总院 | A kind of tough wear-resistant copper alloy of low temperature superelevation and preparation method thereof |
| CN108060327A (en) * | 2017-12-22 | 2018-05-22 | 大连英蕴科技有限公司 | A kind of ship B30 material preparation methods |
| CN112410783A (en) * | 2020-11-19 | 2021-02-26 | 中国船舶重工集团公司第七0四研究所 | Repairing process suitable for composite layer of end cover B30 of marine lithium bromide refrigerating unit |
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| CN104694779B (en) | 2017-06-20 |
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