CN103243236B - High-toughness wear-resistant zinc alloy containing fine crystalline grains and preparation process for same - Google Patents
High-toughness wear-resistant zinc alloy containing fine crystalline grains and preparation process for same Download PDFInfo
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- CN103243236B CN103243236B CN201310144885.8A CN201310144885A CN103243236B CN 103243236 B CN103243236 B CN 103243236B CN 201310144885 A CN201310144885 A CN 201310144885A CN 103243236 B CN103243236 B CN 103243236B
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- zinc
- alloy
- base alloy
- toughness wear
- refining agent
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- 229910001297 Zn alloy Inorganic materials 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 50
- 239000000956 alloy Substances 0.000 claims abstract description 50
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000011701 zinc Substances 0.000 claims abstract description 42
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 42
- 238000007670 refining Methods 0.000 claims abstract description 29
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000010439 graphite Substances 0.000 claims abstract description 8
- 238000002844 melting Methods 0.000 claims abstract description 6
- 230000008018 melting Effects 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 238000011081 inoculation Methods 0.000 claims abstract description 4
- 230000006698 induction Effects 0.000 claims abstract description 3
- 239000011159 matrix material Substances 0.000 claims abstract description 3
- 150000001875 compounds Chemical class 0.000 claims description 19
- 239000007787 solid Substances 0.000 claims description 18
- 238000005516 engineering process Methods 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 16
- 239000003607 modifier Substances 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 241000209456 Plumbago Species 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 5
- 229910000905 alloy phase Inorganic materials 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 238000007872 degassing Methods 0.000 claims description 5
- 230000000994 depressogenic effect Effects 0.000 claims description 5
- 238000004512 die casting Methods 0.000 claims description 5
- 238000013467 fragmentation Methods 0.000 claims description 5
- 238000006062 fragmentation reaction Methods 0.000 claims description 5
- 238000000265 homogenisation Methods 0.000 claims description 5
- 229910052749 magnesium Inorganic materials 0.000 claims description 5
- 239000011777 magnesium Substances 0.000 claims description 5
- 238000010907 mechanical stirring Methods 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 5
- 238000003723 Smelting Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 abstract description 4
- 229910052710 silicon Inorganic materials 0.000 abstract description 4
- 239000010703 silicon Substances 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 abstract 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 2
- 229910020148 K2ZrF6 Inorganic materials 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 239000011592 zinc chloride Substances 0.000 abstract 1
- 235000005074 zinc chloride Nutrition 0.000 abstract 1
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 abstract 1
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000155 melt Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000611 Zinc aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003836 solid-state method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Abstract
The invention discloses a high-toughness wear-resistant zinc alloy containing fine crystalline grains and a preparation process for the same. The high-toughness wear-resistant zinc alloy is characterized by being composed of 98.0-99.0% of a matrix alloy, namely, ZA8 or ZA12 or ZA27 zinc-based alloy, 0.5-1.5% of a composite inoculation modifying agent, and 0.4-0.5% of a refining agent, namely, ZnCl2, wherein the composite modifying agent comprises the following ingredients in percentage by weight: 5-10% of La, 5-10% of Ce, 5-10% of Y, 15-35% of Ti, 15-20% of B, and 10-15% of K2ZrF6. The flow of the preparation process comprises the following steps of: melting by a graphite crucible resistance furnace or a medium-frequency induction furnace; then adding the refining agent to refine and adding the composite modifying agent to perform modification treatment; and preparing a fine crystalline-grain silicon phase having a size scale of 10-50 microns by mechanically stirring, and uniformly and dispersively distributing the fine crystalline-grain silicon phase in a zinc-based alloy structure. The high-toughness wear-resistant zinc alloy disclosed by the invention has mechanical performances of sigma b 450 of MPa, delta 5 of not less than 10.5%, and HB (Brinell hardness) of not less than 139 in an as-cast state.
Description
Technical field
The invention belongs to technical field of metal, relate to a kind of containing compact grained high-toughness wear-resistant zinc alloy, particularly a kind of containing compact grained high-toughness wear-resistant zinc alloy preparation technology.
Background technology
Zinc-aluminium system casting alloy is a kind of new engineering material obtaining over nearly more than 20 years developing rapidly.With its good mechanical property, castability and processing characteristics, cheap cost, proportion is little, founding is simple, be at home and abroad used widely to advantages such as forming technology wide adaptabilities, become the excellent surrogate of a series of copper base alloy, have huge economic benefit and social benefit.China copper shortage and expensive, zinc is then rich and inexpensive, develops zinc alloy meaning particularly great in China.
But, there is the shortcoming that frictional coefficient is higher, wear resistance is not ideal enough, use temperature is low in traditional High Strength Zinc Alloys, for many operating mode occasions by HI high impact load, zinc base alloy (ZA8 general at present, ZA12, ZA27 etc.) plasticity and toughness still dislike not enough, greatly limit the range of application of zinc alloy for copper alloy.Therefore, improve its plasticity and toughness energy, become the key of development zinc alloy and broadened application.
Summary of the invention
Object of the present invention is exactly for above-mentioned shortcoming, provides a kind of high tenacity, high rigidity, and wear resistance is good, and all reasonable containing compact grained high-toughness wear-resistant zinc alloy and preparation technology thereof in elongation and toughness.Compound inoculated Metamorphism treatment and semi-solid casting technology for making is adopted to improve aluminium zinc performance.
For achieving the above object, the present invention can be realized by the design of following compound inoculation modificator chemical composition and technology:
High-toughness high-strength abrasion-proof zinc alloy provided by the present invention is made up of matrix alloy and compound inoculation modificator and refining agent, and its proportioning is: ZA8 or ZA12 or ZA27 zinc base alloy 98.0 ~ 99.0%, compound modifier 0.5 ~ 1.5%, ZnCl
2refining agent 0.4 ~ 0.5%; The weight percent point ratio of its compound modifier composition is: La5 ~ 10%, Ce5 ~ 10%, Y5 ~ 10%, Ti15 ~ 35%, B15 ~ 20%, K
2zrF
610 ~ 15%.
Provided by the present invention containing compact grained high-toughness wear-resistant zinc alloy and preparation technology thereof, its manufacturing technology steps is:
1, material is industrial zinc ingot metal, industrial aluminium ingot, industrial magnesium ingot and copper, melt at plumbago crucible resistance furnace or Medium frequency induction smelting furnace plumbago crucible according to ZA8 or ZA12 or ZA27 zinc base alloy composition, after all being melted by zinc base alloy at 580 ~ 650 DEG C, add 0.2%ZnCl
2refining agent refining, leaves standstill;
2, add the compound modifier of 0.5 ~ 1.5%, be depressed into crucible bottom fusing with bell jar;
3, after all melting, again 0.2%ZnCl is added
2refining agent refining, leaves standstill, degasification of skimming;
4, by the zinc alloy of fusing temperature be the semi-solid state of 580 ~ 650 DEG C hypereutectic in, the fragmentation of zinc base alloy phase is realized by churned mechanically mode, then Mechanical Crushing is carried out to semi-solid hypereutectic zinc base alloy, stirring velocity is 300 ~ 800rpm, churning time 40 ~ 60 seconds, makes its homogenization of composition.
5, the semi-solid state zinc base alloy after mechanical stirring is poured in the mould of preheating into carry out pressure die casting shaping or be cast straight in sand mold or metal mold and be cast as zinc-base alloy ingot or zinc base alloy component.
The yardstick adopting the inventive method to obtain is that the silicon of 10 ~ 50 μm is evenly distributed in zinc base alloy tissue, the selection of its concrete technology parameter, the requirement to preparation efficiency is depended in the selection of temperature between 580 ~ 650 DEG C being heated to semi-solid state region as hypereutectic zinc base alloy, to enhance productivity, the temperature in semi-solid state region can line on the upper side, and the churned mechanically like this time can suitably shorten.
Effect of the present invention is that the micron silicon of disperse is uniformly distributed in aluminium zinc.
Present invention be primarily characterized in that and utilize semi-solid state method to realize containing compact grained high-toughness wear-resistant zinc base alloy.
Beneficial effect
Compared with prior art, tool of the present invention has the following advantages: of the present invention have higher mechanical property containing compact grained high-toughness wear-resistant zinc alloy, mechanical property under as cast condition, σ b450MPa, δ 5 >=10.5%, HB >=139, because the micron order high-volume-fraction Si of disperse is uniformly distributed in aluminium zinc, thus significantly improve wear resisting property, improve Zn-base alloy work-ing life.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
Embodiment one
A kind of high-toughness high-strength abrasion-proof zinc alloy preparation technology, this alloy ingredient is: ZA27 zinc base alloy 98.5, compound modifier 1.0%, ZnCl
2refining agent 0.5%; The weight percent point ratio of its compound modifier composition is: La5 ~ 10%, Ce5 ~ 10%, Y5 ~ 10%, Ti15 ~ 35%, B15 ~ 20%, K
2zrF
610 ~ 15%.
Its preparation method, comprises following process:
1, material is industrial zinc ingot metal, industrial aluminium ingot, industrial magnesium ingot and copper, melts in plumbago crucible resistance furnace according to ZA27 zinc base alloy composition, after all being melted by zinc base alloy, adds 0.25%ZnCl at 600 ~ 630 DEG C
2refining agent refining;
2, add the compound modifier of 1.0%, be depressed into crucible bottom fusing with bell jar;
3, after all melting, again 0.25%ZnCl is added
2refining agent refining, leaves standstill, degasification of skimming;
4, by the zinc alloy of fusing temperature be the semi-solid state of 580 ~ 650 DEG C hypereutectic in, the fragmentation of zinc base alloy phase is realized by churned mechanically mode, then Mechanical Crushing is carried out to semi-solid hypereutectic zinc base alloy, stirring velocity is 300 ~ 800rpm, churning time 40 ~ 60 seconds, makes its homogenization of composition.
5, the semi-solid state zinc base alloy after mechanical stirring is poured in the mould of preheating into carry out pressure die casting shaping or be cast straight in sand mold or metal mold and be cast as zinc-base alloy ingot or zinc base alloy component.
Embodiment two
A kind of high-toughness high-strength abrasion-proof zinc alloy preparation technology, this alloy ingredient is: ZA12 zinc base alloy 98.8, compound modifier 0.8%, ZnCl
2refining agent 0.4%; The weight percent point ratio of its compound modifier composition is: La5 ~ 10%, Ce5 ~ 10%, Y5 ~ 10%, Ti15 ~ 35%, B15 ~ 20%, K
2zrF
610 ~ 15%.
Its preparation method, comprises following process:
1, material is industrial zinc ingot metal, industrial aluminium ingot, industrial magnesium ingot and copper, melts in plumbago crucible resistance furnace according to ZA12 zinc base alloy composition, after all being melted by zinc base alloy, adds 0.2%ZnCl at 600 ~ 630 DEG C
2refining agent refining, leaves standstill;
2, add the compound modifier of 0.8%, be depressed into crucible bottom fusing with bell jar;
3, after all melting, again 0.2%ZnCl is added
2refining agent refining, leaves standstill, degasification of skimming;
4, by the zinc alloy of fusing temperature be the semi-solid state of 580 ~ 650 DEG C hypereutectic in, the fragmentation of zinc base alloy phase is realized by churned mechanically mode, then Mechanical Crushing is carried out to semi-solid hypereutectic zinc base alloy, stirring velocity is 400 ~ 750rpm, churning time 50 ~ 60 seconds, makes its homogenization of composition.
5, the semi-solid state zinc base alloy after mechanical stirring is poured in the mould of preheating into carry out pressure die casting shaping or be cast straight in sand mold or metal mold and be cast as zinc-base alloy ingot or zinc base alloy component.
Embodiment three
A kind of high-toughness high-strength abrasion-proof zinc alloy preparation technology, this alloy ingredient is: ZA8 zinc base alloy 99.0, compound modifier 0.6%, ZnCl
2refining agent 0.4%; The weight percent point ratio of its compound modifier composition is: La5 ~ 10%, Ce5 ~ 10%, Y5 ~ 10%, Ti15 ~ 35%, B15 ~ 20%, K
2zrF
610 ~ 15%.
Its preparation method, comprises following process:
1, material is industrial zinc ingot metal, industrial aluminium ingot, industrial magnesium ingot and copper, melts in plumbago crucible resistance furnace according to ZA8 zinc base alloy composition, after all being melted by zinc base alloy, adds 0.2%ZnCl at 600 ~ 630 DEG C
2refining agent refining, leaves standstill;
2, add the compound modifier of 0.6%, be depressed into crucible bottom fusing with bell jar;
3, after all melting, again 0.2%ZnCl is added
2refining agent refining, leaves standstill, degasification of skimming;
4, by the zinc alloy of fusing temperature be the semi-solid state of 580 ~ 650 DEG C hypereutectic in, the fragmentation of zinc base alloy phase is realized by churned mechanically mode, then Mechanical Crushing is carried out to semi-solid hypereutectic zinc base alloy, stirring velocity is 450 ~ 650rpm, churning time 40 ~ 50 seconds, makes its homogenization of composition.
5, the semi-solid state zinc base alloy after mechanical stirring is poured in the mould of preheating into carry out pressure die casting shaping or be cast straight in sand mold or metal mold and be cast as zinc-base alloy ingot or zinc base alloy component.
Claims (1)
1. the preparation technology containing compact grained high-toughness wear-resistant zinc alloy, it is characterized in that: described is made up of matrix alloy and compound inoculation modificator and refining agent containing compact grained high-toughness wear-resistant zinc alloy, its proportioning is: ZA8 or ZA12 or ZA 27 zinc base alloy 98.0 ~ 99.0%, compound modifier 0.5 ~ 1.5%, ZnCl
2refining agent 0.4%, above-mentioned each component sum is 100%; The weight percent point ratio of its compound modifier composition is: La10%, Ce10%, Y10%, Ti35%, B20%, K
2zrF
615%;
The preparation technology containing compact grained high-toughness wear-resistant zinc alloy provided, its manufacturing technology steps is:
1) material is industrial zinc ingot metal, industrial aluminium ingot, industrial magnesium ingot and copper, melt at plumbago crucible resistance furnace or Medium frequency induction smelting furnace plumbago crucible according to ZA8 or ZA12 or ZA 27 zinc base alloy composition, after all being melted by zinc base alloy at 580 ~ 650 DEG C, add 0.2%ZnCl
2refining agent refining, leaves standstill;
2) add the compound modifier of 0.5 ~ 1.5%, be depressed into crucible bottom fusing with bell jar;
3) after all melting, again 0.2%ZnCl is added
2refining agent refining, leaves standstill, degasification of skimming;
4) by the zinc alloy of fusing temperature be the semi-solid state of 580 ~ 650 DEG C hypereutectic in, the fragmentation of zinc base alloy phase is realized by churned mechanically mode, then Mechanical Crushing is carried out to semi-solid hypereutectic zinc base alloy, stirring velocity is 300 ~ 800rpm, churning time 40 ~ 60 seconds, makes its homogenization of composition;
5) the semi-solid state zinc base alloy after mechanical stirring is poured in the mould of preheating into carry out pressure die casting shaping or be cast straight in sand mold or metal mold and be cast as zinc-base alloy ingot or zinc base alloy component.
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| CN201310144885.8A CN103243236B (en) | 2013-04-22 | 2013-04-22 | High-toughness wear-resistant zinc alloy containing fine crystalline grains and preparation process for same |
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| CN201310144885.8A CN103243236B (en) | 2013-04-22 | 2013-04-22 | High-toughness wear-resistant zinc alloy containing fine crystalline grains and preparation process for same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103572096A (en) * | 2013-09-29 | 2014-02-12 | 江苏新亚特钢锻造有限公司 | High-toughness wear-resistant zinc alloy and preparation method thereof |
| CN103981387B (en) * | 2014-05-09 | 2015-12-09 | 曹帅 | A kind of for the alterant in zinc-aluminium noiseless alloy and the method preparing aluminium zinc |
| CN104328312B (en) * | 2014-10-20 | 2016-07-13 | 东北大学 | A kind of medical bio degradable kirsite and preparation method thereof |
| CN104451262A (en) * | 2014-12-16 | 2015-03-25 | 广西大学 | High-abrasion high-aluminum and zinc based alloy as well as casting process and casting system thereof |
| CN107385246B (en) * | 2017-06-26 | 2019-01-18 | 济南大学 | The method of tiny primary α-Al equi-axed crystal is obtained in Zn-Al alloy |
| CN109182842A (en) * | 2018-11-09 | 2019-01-11 | 广州宇智科技有限公司 | A kind of 300-400 degree heat accumulation kirsite having spinodal decomposition effect |
| CN109182841A (en) * | 2018-11-09 | 2019-01-11 | 广州宇智科技有限公司 | It is a kind of that there is sensible heat and latent heat heat accumulation 200-300 degree kirsite simultaneously |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392207A (en) * | 2011-12-14 | 2012-03-28 | 常州大学 | Zinc-based alloy used in steel hot dipping, and preparation method thereof |
| CN102719704A (en) * | 2012-06-25 | 2012-10-10 | 镇江忆诺唯记忆合金有限公司 | Process method capable of improving comprehensive mechanical property of multielement zinc-aluminum alloy |
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| AU2200892A (en) * | 1991-09-18 | 1993-03-25 | Crest Chemical Company Pty Ltd | An improved method for treating zinc alloy for use in the production of brass |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392207A (en) * | 2011-12-14 | 2012-03-28 | 常州大学 | Zinc-based alloy used in steel hot dipping, and preparation method thereof |
| CN102719704A (en) * | 2012-06-25 | 2012-10-10 | 镇江忆诺唯记忆合金有限公司 | Process method capable of improving comprehensive mechanical property of multielement zinc-aluminum alloy |
Non-Patent Citations (2)
| Title |
|---|
| ZA27合金的变质处理;李晨曦等;《沈阳工业大学学报》;19980630;第20卷(第3期);第72-76、92页 * |
| 高铝锌合金研究现状及进展;高存贞等;《热加工工艺》;20100430;第39卷(第7期);第23-26页 * |
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