CN1164783C - Anticorrosive and antiwear cast cobalt-base alloy - Google Patents
Anticorrosive and antiwear cast cobalt-base alloy Download PDFInfo
- Publication number
- CN1164783C CN1164783C CNB011334169A CN01133416A CN1164783C CN 1164783 C CN1164783 C CN 1164783C CN B011334169 A CNB011334169 A CN B011334169A CN 01133416 A CN01133416 A CN 01133416A CN 1164783 C CN1164783 C CN 1164783C
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- China
- Prior art keywords
- cobalt
- portions
- base alloy
- alloy
- anticorrosive
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 40
- 239000000956 alloy Substances 0.000 title claims abstract description 40
- 238000005275 alloying Methods 0.000 claims description 6
- 239000000470 constituent Substances 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 abstract description 16
- 238000005260 corrosion Methods 0.000 abstract description 16
- 239000010941 cobalt Substances 0.000 abstract description 14
- 229910017052 cobalt Inorganic materials 0.000 abstract description 14
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 13
- 239000000835 fiber Substances 0.000 abstract description 6
- 230000008676 import Effects 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 6
- 229910052759 nickel Inorganic materials 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000000463 material Substances 0.000 description 9
- 239000010955 niobium Substances 0.000 description 5
- 239000010949 copper Substances 0.000 description 4
- 230000003245 working effect Effects 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000007669 thermal treatment Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 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
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- UNASZPQZIFZUSI-UHFFFAOYSA-N methylidyneniobium Chemical compound [Nb]#C UNASZPQZIFZUSI-UHFFFAOYSA-N 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The present invention relates to cobalt-base alloy, particularly to an anticorrosive and antiwear cast cobalt-base alloy. The present invention is characterized in that the alloy comprises the components with weight percentage: 1.0 to 2.5 portions of C, 20 to 35 portions of Cr, 5 to 20 portions of W, 1 to 6 portions of Mo, 1 to 8 portions of Nb, 0.5 to 2.0 portions of Cu, 0.5 to 3.0 portions of Si, 2 to 15 portions of Ni and 35 to 65 portions of Co. The component range of the cobalt-base alloy can ensure that the cobalt-base alloy has excellent anticorrosive and antiwear performance, and the average hardness value (HRC) can reach 48 or so. The cobalt-base alloy can be used for manufacturing a cutting-off tool on a chemical fiber cutting-off machine in a water flow type. When the cobalt-base alloy is used under domestic production conditions, the cobalt-base alloy basically has no uniform corrosion or point corrosion, and the service life is 20% higher than that of an import piece. In addition, the nickel as an alloy element is utilized to partially replace the cobalt, and the alloy cost is greatly lowered.
Description
Technical field
The present invention relates to cobalt base alloy, be specially a kind of anticorrosive and antiwear cast cobalt-base alloy.
Background technology
The present cobalt base alloy of producing, main component is a Co-Cr-W-C type quad alloy, although it has wear-resisting, corrosion resistant better performance, in various strong corrosive medias, its use properties is unsatisfactory.Needing to have high corrosion resistance energy, high-wear resistance in some industrial circle, have high strength and flexible alloy simultaneously, is the key part of flow type chemical fibre stapling machine as cutter knife, and its working conditions is as follows:
Cut off material: the artificial cellulose;
Contact medium: acidic aqueous media, pH value are 2, H
2SO
4Concentration 10～15g/L, Na
2SO
4Concentration 20～30g/L, H
2The S trace, Cl
-200ppm;
Working temperature: 80～90 ℃;
Load character: pulsating load, cutting frequency 200 times/minute, operation is used continuously.
Certain chemical fibre industry main office is set up in recent years, and a complete set of equipment puts into production from Australia's land productivity import, and wherein the key part cutter knife of flow type stapling machine costs an arm and a leg, consumption is big.The used homemade cutter of present domestic chemical fibre industry mostly is cobalt base alloy, although working temperature very low (40～55 ℃), but the life-span is unsatisfactory always, and for many years, people once adopted several different methods to the material of cutter knife, be devoted to improve cutter knife use properties and life-span, do not become effective, wherein: a class is as too upright 6 alloys such as grade of department, and its weak point is that the material wearing and tearing are very fast, even occur when whetting a knife turnedly, material hardness deficiency is described; Another kind of alloy, its weak point are that sawtooth appears in blade when on probation, illustrate that material toughness is relatively poor, can't use.And external import cutter knife is a cobalt-based distortion material, and working condition uses down at home, spot corrosion often occurs, can not reach the life-span that contract provides, and therefore, is badly in need of a kind of novel material of development, addresses the above problem.
Summary of the invention
The purpose of this invention is to provide a kind of have higher intensity and toughness, lower-cost anticorrosive and antiwear cast cobalt-base alloy, it can be used to make the key part cutter knife on the flow type chemical fibre stapling machine.
Technical solution of the present invention:
A kind of anticorrosive and antiwear cast cobalt-base alloy, the weight percentage of its alloying constituent is:
C 1.0～2.5；Cr 20～35；W 5～20；Mo 1～6；Nb 1～8；
Cu 0.5～2.0；Si 0.5～3.0；Ni 2～15；Co 35～65。
Described anticorrosive and antiwear cast cobalt-base alloy, the weight percentage of its alloying constituent can also for:
C 1.5～2.5；Cr 28～35；W 5～15；Mo 1～4；Nb 1～8；
Cu 1.0～2.0；Si 0.5～2.0；Ni 5～15；Co 35～50。
The present invention is design like this:
Carbon is important element in the alloy, and alloy rigidity is that the increase with carbon content improves substantially, for making alloy tool high rigidity, selects M
7C
3Strengthen, so must guarantee the carbon of sufficient amount, its weight percentage is 1.0～2.5;
Chromium has dual function, and the one, be solidly soluted in the cobalt-based body, improve matrix strength and solidity to corrosion; The 2nd, generate carbide M
7C
3, improve wear resistance;
Elements such as tungsten, molybdenum, niobium, nickel can be strengthened matrix, and wherein tungsten, molybdenum, niobium participate in forming carbide, increase strengthening phase quantity, improve wear resistance; Nickel can improve alloy toughness, and can substitute a part of cobalt, thereby reduces cost of alloy;
Silicon can improve the mobile property of liquid metal, contains a spot of silicon in the alloy, can improve casting quality, and its weight percentage is 0.5～3;
Copper can improve alloy corrosion resistance, has certain resisting corrosion of chlorine ion effect; But it is 0.5～2 that the adding of copper also may bring adverse influence, its weight percentage to the processibility of material and thermal treatment etc.;
Cobalt is to constitute base alloy element of the present invention, by its infusibility performance (fusing point is 1495 ℃), helps the inherent physical strength of matrix, the present invention adopts alloying element nickel partly to substitute cobalt, thereby can reduce the add-on of cobalt, save cost, its weight percentage is 35～65.
The invention has the beneficial effects as follows:
1. the corrosion-proof wear performance is good, long service life.The cobalt base alloy composition range of the present invention's design can guarantee that it has excellent corrosion-proof wear performance, and its average hardness value (HRC) can reach about 48; In addition, it can be used to make the cutter knife on the flow type chemical fibre stapling machine, its working condition use down at home, and average corrosion rate is-0.018g/M
2H does not have uniform corrosion substantially, does not also have spot corrosion, and exceed 20% than import parts its work-ing life.
2. cost is low.The present invention adopts alloying element nickel partly to substitute cobalt, and the cobalt contents lower limit has been broken through the existing trade mark both at home and abroad, thereby has saved the expensive metal cobalt as strategic materials, greatly reduces cost of alloy.
Description of drawings
Fig. 1 is the embodiment of the invention 1 metallographic structure figure.
Fig. 2 is the embodiment of the invention 2 metallographic structure figure.
Embodiment
Be described in further detail the present invention below by embodiment and accompanying drawing.
The melting of alloy is finished in vacuum induction furnace, becomes cutter knife through precision casting, and is specific as follows:
1. alloy composition is as shown in table 1: (weight percentage)
Table 1
| C | Cr | W | Mo | Nb | Ni | Cu | Si | Co | |
| Embodiment 1 | 1.6 | 30.0 | 7.0 | 1.5 | 6.1 | 15.0 | 1.3 | 0.8 | 36.7 |
| Embodiment 2 | 1.7 | 29.5 | 6.7 | 2.1 | 6.5 | 13.1 | 1.5 | 0.6 | 38.3 |
2. alloy thermal treatment, hardness are as shown in table 2:
Table 2
| Thermal treatment | Average hardness value (HRC) | |
| Embodiment 1 | 800～850 ℃/2h stove is cold | 48 |
| Embodiment 2 | 800～850 ℃/2h stove is cold | 50 |
Embodiment 1 and embodiment 2 metallographic structures (100 *) as shown in Figure 1 and Figure 2, its alloy substrate is a face-centred cubic structure, strengthening phase is mainly M
7C
3With niobium carbide etc.;
3. alloy corrosion resistance is as follows:
Corrosive medium: 10g/L H
2SO
4+ 30g/L Na
2SO
4, PH=1.3;
Experimental temperature: 100 ℃;
Experimental period: 16h;
Average corrosion rate :-0.018g/M
2H does not have uniform corrosion substantially, does not also have spot corrosion.
4. the test in place situation is as follows:
Under the same conditions, import cutter work-ing life is 2,500,000 times (occurring spot corrosion in the use), adopts cutter knife of the present invention work-ing life more than 3,000,000 times, and improve 20% its work-ing life; Reduce number of changing knife like this, not only improved production efficiency, also guaranteed quality product, and low price, be about 50% of import cutter, economic benefit and obvious social benefit.
Claims (2)
1. anticorrosive and antiwear cast cobalt-base alloy is characterized in that the weight percentage of its alloying constituent is:
C 1.0～2.5
Cr 20～35
W 5～20
Mo 1～6
Nb 1～8
Cu 0.5～2.0
Si 0.5～3.0
Ni 2～15
Co 35～65。
2. according to the described anticorrosive and antiwear cast cobalt-base alloy of claim 1, it is characterized in that described alloying constituent weight percentage is:
C 1.5～2.5
Cr 28～35
W 5～15
Mo 1～4
Nb 1～8
Cu 1.0～2.0
Si 0.5～2.0
Ni 5～15
Co 35～50。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011334169A CN1164783C (en) | 2001-11-07 | 2001-11-07 | Anticorrosive and antiwear cast cobalt-base alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011334169A CN1164783C (en) | 2001-11-07 | 2001-11-07 | Anticorrosive and antiwear cast cobalt-base alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1417360A CN1417360A (en) | 2003-05-14 |
| CN1164783C true CN1164783C (en) | 2004-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011334169A Expired - Fee Related CN1164783C (en) | 2001-11-07 | 2001-11-07 | Anticorrosive and antiwear cast cobalt-base alloy |
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| Country | Link |
|---|---|
| CN (1) | CN1164783C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103212912B (en) * | 2013-04-22 | 2015-03-04 | 安泰科技股份有限公司 | Method for manufacturing nuclear-power-used thrust disc by means of hot isostatic pressing diffusion bonding |
| CN103215475B (en) * | 2013-04-26 | 2015-10-28 | 中国科学院金属研究所 | A kind of Srgery grafting cobalt base alloy and application thereof |
| CN105296808A (en) * | 2014-07-01 | 2016-02-03 | 升旭雷射科技股份有限公司 | Metal material used for mobile communication and multimedia devices and wearable devices |
| CN105210552B (en) * | 2015-11-12 | 2018-02-27 | 金华极合环保技术咨询有限公司 | A kind of corn combine |
| CN105296809B (en) * | 2015-11-30 | 2017-07-07 | 中国科学院金属研究所 | A kind of high intensity precipitation strength cobalt-based single crystal super alloy and preparation method thereof |
| CN106493502A (en) * | 2016-11-16 | 2017-03-15 | 中国人民解放军第五七九工厂 | A kind of restorative procedure of aero-engine bridle end wear |
| CN110899711A (en) * | 2019-10-30 | 2020-03-24 | 临沂迈得新材料有限公司 | Zr-containing dental repair 3D printing cobalt-chromium-nickel alloy powder and preparation method thereof |
| CN113787303A (en) * | 2021-08-23 | 2021-12-14 | 苏州福乐友机械科技有限公司 | Machining process for improving wear resistance of motor rotor shaft |
-
2001
- 2001-11-07 CN CNB011334169A patent/CN1164783C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1417360A (en) | 2003-05-14 |
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