CN105624485A - Stress-corrosion-resistant aluminum alloy rod - Google Patents
Stress-corrosion-resistant aluminum alloy rod Download PDFInfo
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- CN105624485A CN105624485A CN201610133970.8A CN201610133970A CN105624485A CN 105624485 A CN105624485 A CN 105624485A CN 201610133970 A CN201610133970 A CN 201610133970A CN 105624485 A CN105624485 A CN 105624485A
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- aluminium alloy
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/047—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
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Abstract
The invention discloses a stress-corrosion-resistant aluminum alloy rod. The stress-corrosion-resistant aluminum alloy rod comprises a rod body. Reamed holes are formed in the two ends of the rod body. The rod body is made from aluminum alloy which is composed of, by weight, 0.40%-0.44% of Si, 0.64%-0.66% of Mg, 0.02% of Cu, 0.23%-0.25% of Fe, 0.02%-0.03% of Sr, 0.14% of La, 0.18% of Nd, 0.03%-0.05% of Zn, 0.02%-0.05% of Ti and the balance Al. The aluminum alloy rod is smooth in surface, wider in hardness range and good in stress-corrosion resistance.
Description
Technical field
The present invention relates to material engineering field, particularly a kind of anticorrosion stress-resistant aluminium alloy rod.
Background technology
The advantages such as aluminium alloy has light weight, raw material is easy to get, are now progressively applied in the middle of Seatask unit. Although current Seatask unit aluminium alloy has certain corrosion resistance nature, but in the solidity to corrosion mensuration process of aluminium alloy, often condition or evaluate under salt fog state premised on the complete submergence seawater of aluminium alloy. In fact, the aluminium alloy of Seatask unit is often in seawater-Air Interface, and the situation of the more complete submergence seawater of the corrosion condition at this kind two interfaces place is more serious, and there be limited evidence currently of has aluminium alloy can tackle this kind of situation. In addition, Seatask unit aluminium alloy often can be subject to various stress-loaded, and therefore stress corrosion is also the index that this field aluminium alloy must be considered.
Such as, for the asdic of sea, conventional machinery arm connects mechanical manipulator and carries out ore collection under water, and the basic composition parts of mechanical arm are connecting rod, often need to bear load. When aluminum current rod of metal alloy uses as connecting rod, after often floating on the detector, exposing in atmosphere, the seawater of remained on surface and air form interface, accelerate the corrosion of aluminium alloy rod.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the present invention provides a kind of aluminium alloy rod, and smooth surface, durometer level is higher, and anticorrosion stress-resistant is good, it is possible to the basic module as mechanical arm uses.
A kind of aluminium alloy rod provided by the invention, comprises bar body, and fraising has been offered at bar body two ends, described bar body is made up of aluminium alloy, and described aluminium alloy comprises following component: Si:0.40-0.44%, Mg:0.64-0.66%, Cu:0.02%, Fe:0.23-0.25%, Sr:0.02-0.03%, La:0.14%, Nd:0.18%, Zn:0.03-0.05%, Ti:0.02-0.05%, all the other are Al.
Preferably, the mass ratio of Mg, La, Zn is: Mg:La:Zn=64:14:3.
Preferably, the mass ratio of Mg, La, Zn is: Mg:La:Zn=66:14:5.
Preferably, the mass ratio of Mg, La, Zn is: Mg:La:Zn=65:14:5.
The surfaceness of described aluminium alloy is 1.8um.
The hardness of described aluminium alloy is 10-13HW.
A kind of aluminium alloy rod provided by the invention, comprises bar body, and fraising has been offered at bar body two ends, and convenient and other aluminium alloy rods composition linkage assembly, to use as mechanical arm. Described bar body is made up of aluminium alloy, described aluminium alloy comprises following component: Si:0.40-0.44%, Mg:0.64-0.66%, Cu:0.02%, Fe:0.23-0.25%, Sr:0.02-0.03%, La:0.14%, Nd:0.18%, Zn:0.03-0.05%, Ti:0.02-0.05%, all the other are Al. Compared with traditional aluminium alloy rod, aluminium alloy rod surface provided by the invention is more smooth, roughness can reach 1.8um, without significant depressions, not easily produce corrosion, it may also be useful to the time limit is longer, and hardness is higher, in addition by rational compatibility and proportioning, it is possible to make aluminium alloy still can show good anticorrosion stress-resistant characteristic at seawater-Air Interface place.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of anticorrosion stress-resistant aluminium alloy rod provided by the invention.
Embodiment
In order to make those skilled in the art understand the technical scheme of the present invention better, below in conjunction with embodiment, the present invention is described in further detail.
Embodiment 1
In the present embodiment, in aluminium alloy, each weight percentages of components is as follows: Si:0.40%, Mg:0.64%, Cu:0.02%, Fe:0.23%, Sr:0.03%, La:0.14%, Nd:0.18%, Zn:0.03%, Ti:0.05%, and all the other are Al.
Said components is utilized to prepare aluminium alloy extrusions finished product, concrete preparation method is: after each component being mixed, homogeneousization process in aluminium bar stove, promote the homogeneity of overall performance, material is made to have suitable hardness and toughness concurrently, then through air cooling, ingot casting heating is carried out at 450-500 DEG C, then extrusion machine extruding is sent into, the temperature of container is at 400 DEG C �� 10 DEG C, extrusion speed 3-6m/min, water spray quenching is carried out after extruding, cut by disconnected, cold bed cools, stretch, align laggard row artificial aging, holding temperature is 250 DEG C �� 10 DEG C, time 180min, obtain aluminium alloy finished product. after tested, the hardness (HW) of aluminium alloy finished product is 10. surfaceness is 1.8um, and section bar thickness can reach 3mm.
Embodiment 2
In the present embodiment, in aluminium alloy, each weight percentages of components is as follows: Si:0.44%, Mg:0.66%, Cu:0.02%, Fe:0.25%, Sr:0.02%, La:0.14%, Nd:0.18%, Zn:0.05%, Ti:0.02%, and all the other are Al.
Said components is utilized to prepare aluminium alloy extrusions finished product, concrete preparation method is: after each component being mixed, homogeneousization process in aluminium bar stove, promote the homogeneity of overall performance, material is made to have suitable hardness and toughness concurrently, then through air cooling, ingot casting heating is carried out at 450-500 DEG C, then extrusion machine extruding is sent into, the temperature of container is at 400 DEG C �� 10 DEG C, extrusion speed 3-6m/min, water spray quenching is carried out after extruding, cut by disconnected, cold bed cools, stretch, align laggard row artificial aging, holding temperature is 250 DEG C �� 10 DEG C, time 180min, obtain aluminium alloy finished product. after tested, the hardness (HW) of aluminium alloy finished product is 10. surfaceness is 1.8um, and section bar thickness can reach 3mm.
Embodiment 3
In the present embodiment, in aluminium alloy, each weight percentages of components is as follows: Si:0.42%, Mg:0.65%, Cu:0.02%, Fe:0.24%, Sr:0.03%, La:0.14%, Nd:0.18%, Zn:0.05%, Ti:0.04%, and all the other are Al.
Said components is utilized to prepare aluminium alloy extrusions finished product, concrete preparation method is: after each component being mixed, homogeneousization process in aluminium bar stove, promote the homogeneity of overall performance, material is made to have suitable hardness and toughness concurrently, then through air cooling, ingot casting heating is carried out at 450-500 DEG C, then extrusion machine extruding is sent into, the temperature of container is at 400 DEG C �� 10 DEG C, extrusion speed 3-6m/min, water spray quenching is carried out after extruding, cut by disconnected, cold bed cools, stretch, align laggard row artificial aging, holding temperature is 250 DEG C �� 10 DEG C, time 180min, obtain aluminium alloy finished product. after tested, the hardness (HW) of aluminium alloy finished product is 10. surfaceness is 1.8um, and section bar thickness can reach 3mm.
Embodiment 4
Adopt the aluminium alloy that embodiment 1 provides, casting, be processed into aluminium alloy rod, aluminium alloy rod comprises the bar body 1 of strip, and bar body 1 liang of end surfaces is washed open and established fraising 2 (as shown in Figure 1, aluminium alloy rod structure in embodiment 5,6 is identical with the present embodiment, no longer lists accompanying drawing). Concrete casting and working method are known in this field, and this section repeats no more (lower same).
Embodiment 5
The aluminium alloy adopting embodiment 2 to provide, casts, is processed into aluminium alloy rod, and aluminium alloy rod comprises the bar body of strip, and bar body two end surfaces is washed open and established fraising.
Embodiment 6
The aluminium alloy adopting embodiment 3 to provide, casts, is processed into aluminium alloy rod, and aluminium alloy rod comprises the bar body of strip, and bar body two end surfaces is washed open and established fraising.
Comparative example 1
In the present embodiment, in aluminium alloy, each weight percentages of components is as follows: Si:0.32%, Mg:070%, Cu:0.04%, Fe:0.26%, Sr:0.05%, La:0.22%, Nd:0.26%, Zn:0.02%, Ti:0.08%, and all the other are Al.
Said components is utilized to prepare aluminium alloy extrusions finished product, concrete preparation method is: after each component being mixed, homogeneousization process in aluminium bar stove, promote the homogeneity of overall performance, material is made to have suitable hardness and toughness concurrently, then through air cooling, ingot casting heating is carried out at 450-500 DEG C, then extrusion machine extruding is sent into, the temperature of container is at 400 DEG C �� 10 DEG C, extrusion speed 3-6m/min, water spray quenching is carried out after extruding, cut by disconnected, cold bed cools, stretch, align laggard row artificial aging, holding temperature is 250 DEG C �� 10 DEG C, time 180min, obtain aluminium alloy finished product. after tested, the hardness (HW) of aluminium alloy finished product is 8. surfaceness is 3um, and section bar thickness can reach 3mm.
Comparative example 2
In the present embodiment, in aluminium alloy, each weight percentages of components is as follows: Si:0.50%, Mg:0.55%, Cu:0.01%, Fe:0.18%, Sr:0.01%, La:0.10%, Nd:0.14%, Zn:0.03%, Ti:0.03%, and all the other are Al.
Said components is utilized to prepare aluminium alloy extrusions finished product, concrete preparation method is: after each component being mixed, homogeneousization process in aluminium bar stove, promote the homogeneity of overall performance, material is made to have suitable hardness and toughness concurrently, then through air cooling, ingot casting heating is carried out at 450-500 DEG C, then extrusion machine extruding is sent into, the temperature of container is at 400 DEG C �� 10 DEG C, extrusion speed 3-6m/min, water spray quenching is carried out after extruding, cut by disconnected, cold bed cools, stretch, align laggard row artificial aging, holding temperature is 250 DEG C �� 10 DEG C, time 180min, obtain aluminium alloy finished product. after tested, the hardness (HW) of aluminium alloy finished product is 8. surfaceness is 3um.
Test example 1
Aluminium alloy finished product in embodiment 1��3, comparative example 1��2 is prepared into standard stress corrosion (cracking) test test specimen, test specimen is inserted container internal fixtion, inject 3.5%NaCl seawater in container, till reaching in the middle part of test specimen, with this simulated seawater two interfaces environment. Test specimen is loaded 55MPa load, tests the time that fracture occurs for it.
Table 1. aluminum alloy stress corrosion performance
| Group | Rupture time |
| Embodiment 1 | Within 720 hours, do not rupture |
| Embodiment 2 | Within 720 hours, do not rupture |
| Embodiment 3 | Within 720 hours, do not rupture |
| Comparative example 1 | Fracture in 42 hours, breach is positioned at boundary place, middle part |
| Comparative example 2 | Fracture in 38 hours, breach is positioned at boundary place, middle part |
From the above results, aluminium alloy provided by the invention has good anticorrosion stress-resistant performance. Its aluminium alloy rod made also has good anticorrosion stress-resistant performance, it is possible to the mechanical arm linkage component as ocean operation uses.
Above a kind of anticorrosion stress-resistant aluminium alloy rod provided by the present invention is described in detail. Apply specific case herein the principle of the present invention and enforcement mode to have been set forth, illustrating just for helping the core concept understanding the present invention of above embodiment. It is noted that for those skilled in the art, under the premise without departing from the principles of the invention, it is also possible to the present invention is carried out some improvement and modification. These improve and modify in the protection domain that also should fall into the claims in the present invention.
Claims (6)
1. an anticorrosion stress-resistant aluminium alloy rod, it is characterised in that, comprise bar body, fraising has been offered at bar body two ends, and described bar body is made up of aluminium alloy, and described aluminium alloy comprises following component: Si:0.40-0.44%, Mg:0.64-0.66%, Cu:0.02%, Fe:0.23-0.25%, Sr:0.02-0.03%, La:0.14%, Nd:0.18%, Zn:0.03-0.05%, Ti:0.02-0.05%, all the other are Al.
2. anticorrosion stress-resistant aluminium alloy rod according to claim 1, it is characterised in that, the mass ratio of Mg, La, Zn is: Mg:La:Zn=64:14:3.
3. anticorrosion stress-resistant aluminium alloy rod according to claim 1, it is characterised in that, the mass ratio of Mg, La, Zn is: Mg:La:Zn=66:14:5.
4. anticorrosion stress-resistant aluminium alloy rod according to claim 1, it is characterised in that, the mass ratio of Mg, La, Zn is: Mg:La:Zn=65:14:5.
5. anticorrosion stress-resistant aluminium alloy rod according to claim 1, it is characterised in that, the surfaceness of described aluminium alloy is 1.8um.
6. anticorrosion stress-resistant aluminium alloy rod according to claim 1, it is characterised in that, the hardness of described aluminium alloy is 10-13H.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610133970.8A CN105624485A (en) | 2016-03-09 | 2016-03-09 | Stress-corrosion-resistant aluminum alloy rod |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610133970.8A CN105624485A (en) | 2016-03-09 | 2016-03-09 | Stress-corrosion-resistant aluminum alloy rod |
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| CN105624485A true CN105624485A (en) | 2016-06-01 |
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| CN201610133970.8A Pending CN105624485A (en) | 2016-03-09 | 2016-03-09 | Stress-corrosion-resistant aluminum alloy rod |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106010137A (en) * | 2016-06-15 | 2016-10-12 | 青岛源之林农业科技开发有限公司 | Corrosion-resistant metal connecting rod and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101298644A (en) * | 2008-06-19 | 2008-11-05 | 廖健 | High-performance electrophoresis aluminum alloy construction section bar and method for making same |
| CN101781723A (en) * | 2009-09-15 | 2010-07-21 | 河池学院 | Manufacturing method of high-strength automobile aluminum-alloy rim material |
| CN102268574A (en) * | 2011-07-20 | 2011-12-07 | 安徽欣意电缆有限公司 | Aluminum alloy material for air-conditioning tube and manufacturing method thereof |
| CN103255325A (en) * | 2013-06-06 | 2013-08-21 | 南通华特铝热传输材料有限公司 | Explosion-suppression aluminum foil |
| CN104313415A (en) * | 2014-11-12 | 2015-01-28 | 江苏礼德铝业有限公司 | Aluminum alloy |
-
2016
- 2016-03-09 CN CN201610133970.8A patent/CN105624485A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101298644A (en) * | 2008-06-19 | 2008-11-05 | 廖健 | High-performance electrophoresis aluminum alloy construction section bar and method for making same |
| CN101781723A (en) * | 2009-09-15 | 2010-07-21 | 河池学院 | Manufacturing method of high-strength automobile aluminum-alloy rim material |
| CN102268574A (en) * | 2011-07-20 | 2011-12-07 | 安徽欣意电缆有限公司 | Aluminum alloy material for air-conditioning tube and manufacturing method thereof |
| CN103255325A (en) * | 2013-06-06 | 2013-08-21 | 南通华特铝热传输材料有限公司 | Explosion-suppression aluminum foil |
| CN104313415A (en) * | 2014-11-12 | 2015-01-28 | 江苏礼德铝业有限公司 | Aluminum alloy |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106010137A (en) * | 2016-06-15 | 2016-10-12 | 青岛源之林农业科技开发有限公司 | Corrosion-resistant metal connecting rod and preparation method thereof |
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