CN1118016A - Wear-resisting and corrosion-resisting hard-alloy material - Google Patents
Wear-resisting and corrosion-resisting hard-alloy material Download PDFInfo
- Publication number
- CN1118016A CN1118016A CN 94115482 CN94115482A CN1118016A CN 1118016 A CN1118016 A CN 1118016A CN 94115482 CN94115482 CN 94115482 CN 94115482 A CN94115482 A CN 94115482A CN 1118016 A CN1118016 A CN 1118016A
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- China
- Prior art keywords
- corrosion
- resisting
- alloy
- alloy material
- cobalt
- Prior art date
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- Pending
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- 239000000956 alloy Substances 0.000 title claims abstract description 27
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000010941 cobalt Substances 0.000 claims abstract description 11
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 11
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 6
- 239000011651 chromium Substances 0.000 claims abstract description 6
- 239000011159 matrix material Substances 0.000 claims abstract description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 6
- 239000011733 molybdenum Substances 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 5
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 abstract description 12
- 230000007797 corrosion Effects 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical group [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 abstract description 2
- 239000002075 main ingredient Substances 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 description 17
- 238000009835 boiling Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- 238000001238 wet grinding Methods 0.000 description 6
- 239000000843 powder Substances 0.000 description 5
- 238000005530 etching Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000010970 precious metal Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910008947 W—Co Inorganic materials 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 229910000531 Co alloy Inorganic materials 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- JPNWDVUTVSTKMV-UHFFFAOYSA-N cobalt tungsten Chemical compound [Co].[W] JPNWDVUTVSTKMV-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000010068 moulding (rubber) Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000001291 vacuum drying Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910000905 alloy phase Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000004223 radioprotective effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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- Powder Metallurgy (AREA)
Abstract
The present invention relates to an anti-abrasive corrosion-resisting hard alloy material mainly used for manufacturing mechanically-sealing friction pairs under the condition of corrosion behaviour. The main ingredients of said invention are: 0.5-2.5% of matrix melal nickel, 0.1-0.5% of chromium, 0.5-1% of molybdenum, 0.1-0.5% of cobalt and the rest is tungsten carbide. As compared with YG6 alloy material said invention has the advantages of good physical-mechanical properties, high resistance to corrosion and low cost.
Description
The invention belongs to the Hardmetal materials technical field.Be suitable as in the corrosive medium particularly mechanical seal fastness material under high temperature (boiling) etching condition.
At present, W-Co kind (the YG6 trade mark) alloy (composition is than tungsten 94%, and cobalt 6% is seen documents) is generally adopted in mechanical seal.This alloy rigidity high-wear resistance is good and be applied to mechanical seal the earliest.Its shortcoming is: this type of alloy corrosion resistance is poor, and W-Co kind alloy bonding metal is rare precious metal one cobalt, makes the W-Co kind cost of alloy greatly improve, so in use be subjected to certain limitation.
Along with developing rapidly of China's oil, chemical industry, the working condition of mechanical seal also becomes increasingly complex, for example; The requirement of, ultra-high voltage corrosion-resistant, high temperature resistant to material, ultra-high speed, radioprotective and the particle-resistant wearing and tearing in corrosive medium etc. makes general Wimet be difficult to adapt to fully.
The objective of the invention is to adopt the producing and manufacturing technique of existing alloy, by reducing the content of matrix metal in the alloy, metals such as selection resistant metal interpolation constituent element nickel replace the matrix metal cobalt, so that the content of rare precious metal cobalt descends significantly in the Wimet, thereby be implemented under the situation that does not reduce original physics-mechanical performance index, improve the corrosion resisting property of Wimet and the task of reduction material cost.
The present invention is realized by following technical scheme:
A kind of wear-resisting, corrosion-resisting hard-alloy material, its matrix metal proportioning components is: nickel 0.5～2.5%, chromium 0.1～0.5%, molybdenum 0.5～1%, cobalt 0.1～0.5%, all the other are wolfram varbide.
The present invention takes the powder metallurgical technology to produce: proportioning components: 0.5～2.5% nickel, and 0.1～0.5% chromium, 0.5～1.0% molybdenum, 0.1～0.5% cobalt, all the other are tungsten-carbide powder.With the powder stock mixing wet-milling of above-mentioned composition, ratio of grinding media to material is 3: 1; Wet grinding media: alcohol; The wet-milling time: 72～96 hours.After the wet-milling, adopt vacuum-drying, drying temperature: 80-120 ℃, before the moulding, add the rubber-moulding agent.Forming pressure: 1 ton/cm2.Blank after the moulding under 1450 ℃～1500 ℃ temperature, vacuum sintering 1～2 hour.Vacuum tightness: 10-1～10-2 torr.So far can produce wear-resisting, the corrosion resistant Hardmetal materials of the YCN3 trade mark.
Test with use practice to show that the YCN3 Hardmetal materials compares with the YG6 tungsten cobalt alloy and have following outstanding feature:
1. has good physics-mechanical property
The YCN3 alloy has good physics-mechanical property, its density, hardness, wear resistance are higher than the YG6 alloy, and have lower thermal expansivity and good heat-conducting, with same material to the mill, frictional coefficient is lower than the YG6 alloy, and its physics-mechanical property sees Table (one).
2. resistance to corrosion is strong
The alloy of the YCN3 trade mark has excellent chemical stability, resistance to corrosion is strong, in acidic medium (room temperature), its etching extent on average reduces an order of magnitude than the YG6 tungsten cobalt alloy, in alkaline medium, its etching extent is zero, especially under high temperature (boiling) etching condition, the resistance to corrosion of YCN3 alloy is bigger than the amplitude that improves with the YG6 alloy phase, sees Table (two).
3. save rare precious metal
The content of rare precious metal cobalt makes the alloy material cost reduce greatly in the alloy owing to having reduced.The contrast of novel YCN3 alloy material and former YG6 alloy material performance and every index is referring to table
One with table two:
Table one is new and old Hardmetal materials YCN3 and the contrast of YG6 physics one mechanical performance index.
Table two is the contrast of new and old alloy material YCN3 and YG6 corrosion resistance nature index.
Be applicable to because the YCN3 alloy has above-mentioned tangible advantage and be produced on particularly mechanical seal fastness material under high temperature (boiling) condition of corrosive medium.
The invention will be further described below in conjunction with embodiment.
The present invention adds an amount of matrix metal nickel, chromium, molybdenum, cobalt based on corrosion resistant metallic carbide one wolfram varbide.The addition of various compositions in the present embodiment (is example with 100g) is: nickel 2.3g, and chromium 0.5g, molybdenum 0.7g, cobalt 0.5g, all the other are wolfram varbide 96g.Above composition is metal-powder, and each powder stock is mixed wet-milling (wet-milling time: 8.5 hours) in alcohol, and mixed slurry is crossed 300 order copper wire screen clothes, through 80 ° of vacuum-dryings, adds the rubber-moulding agent before the moulding, and drying and screening is with 1 ton/cm
2Pressure forming, the blank ring after the moulding is at 1450 ℃+30 ℃, sintering is 2 hours in the vacuum sintering furnace, final dimension is φ 55 * φ 49 * 10 (mm).
The YCN3 alloy is through mechanical seal test examination, and its rub proofness and sealing property all reach the design requirements of mechanical seal.
Table (one) alloy physics-mechanical property
| Test item | YCN3 | YG6 |
| Density (g/cm3) hardness (HRA) bending strength (N/mm2) thermal coefficient of expansion (X10-6/ ℃) thermal conductivity factor (w/m ℃) coefficient of friction | 15.0～5.3 91 1296 4.3 93 0.05 | 14.6～15.0 89.5 1421 4.7 92 0.06 |
Table (two) alloy corrosion resistance energy
| The trade mark | 98％HNO 3 | 30％HCl | 50％H 2SO 4 | 50％H 3PO 4 | ||||
| Normal temperature | Boiling | Normal temperature | Boiling | Normal temperature | Boiling | Normal temperature | Boiling | |
| YCN3 YG6 | 0.335 1.65 | 0.557 5.1 | 0.18 1.85 | 9.37 seriously corroded | 0.105 0.1035 | 0.65 4.187 | 0.0071 0.01025 | 0.151 0.52 |
| The trade mark | 98% acetic acid | 38％HNO 3＋62％H 2SO 4 | 40％NaOH＋20％NaCl | |||
| Normal temperature | Boiling | Normal temperature | Boiling | Normal temperature | Boiling | |
| YCN3 YG6 | 0 0.0775 | 0.393 0.98 | 0.0345 0.058 | 0.737 2 | 0 0.022 | 0 0.143 |
Claims (1)
1. wear-resisting, corrosion-resisting hard-alloy material is characterized by the matrix metal composition proportion and is: nickel 0.5～2.5%, and chromium 0.1～0.5%, molybdenum 0.5～1.0%, cobalt 0.1～0.5%, all the other are wolfram varbide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94115482 CN1118016A (en) | 1994-08-31 | 1994-08-31 | Wear-resisting and corrosion-resisting hard-alloy material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94115482 CN1118016A (en) | 1994-08-31 | 1994-08-31 | Wear-resisting and corrosion-resisting hard-alloy material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1118016A true CN1118016A (en) | 1996-03-06 |
Family
ID=5037518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94115482 Pending CN1118016A (en) | 1994-08-31 | 1994-08-31 | Wear-resisting and corrosion-resisting hard-alloy material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1118016A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050638C (en) * | 1995-09-12 | 2000-03-22 | 易林清 | Cr containing hard alloy |
| US7595947B2 (en) | 2006-09-27 | 2009-09-29 | Samsung Electro-Mechanics Co., Ltd. | Lens driving device |
| CN111386355A (en) * | 2018-11-01 | 2020-07-07 | 住友电气工业株式会社 | Cemented carbide, cutting tool, and method for producing cemented carbide |
| CN111485157A (en) * | 2020-06-03 | 2020-08-04 | 赣州海创钨业有限公司 | Tungsten-cobalt hard alloy resistant to acid-base environment and preparation method thereof |
-
1994
- 1994-08-31 CN CN 94115482 patent/CN1118016A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050638C (en) * | 1995-09-12 | 2000-03-22 | 易林清 | Cr containing hard alloy |
| US7595947B2 (en) | 2006-09-27 | 2009-09-29 | Samsung Electro-Mechanics Co., Ltd. | Lens driving device |
| CN111386355A (en) * | 2018-11-01 | 2020-07-07 | 住友电气工业株式会社 | Cemented carbide, cutting tool, and method for producing cemented carbide |
| CN111485157A (en) * | 2020-06-03 | 2020-08-04 | 赣州海创钨业有限公司 | Tungsten-cobalt hard alloy resistant to acid-base environment and preparation method thereof |
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