CN105817479A - Rolling method for magnesium alloy sheet - Google Patents
Rolling method for magnesium alloy sheet Download PDFInfo
- Publication number
- CN105817479A CN105817479A CN201610161813.8A CN201610161813A CN105817479A CN 105817479 A CN105817479 A CN 105817479A CN 201610161813 A CN201610161813 A CN 201610161813A CN 105817479 A CN105817479 A CN 105817479A
- Authority
- CN
- China
- Prior art keywords
- rolling
- magnesium alloy
- time
- blank
- alloy sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 76
- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- 238000000137 annealing Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 9
- 238000005266 casting Methods 0.000 claims description 6
- 241000446313 Lamella Species 0.000 claims description 4
- 230000014759 maintenance of location Effects 0.000 claims description 4
- 238000003801 milling Methods 0.000 claims description 4
- 239000003755 preservative agent Substances 0.000 claims description 4
- 230000002335 preservative effect Effects 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 4
- 238000010008 shearing Methods 0.000 claims description 4
- 208000037656 Respiratory Sounds Diseases 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010792 warming Methods 0.000 abstract 2
- 238000013021 overheating Methods 0.000 abstract 1
- 238000013016 damping Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a rolling method for an AZ33m magnesium alloy sheet. The rolling method comprises the steps that blank selecting is conducted; blank pretreatment is conducted; blank preheating is conducted; first-time rolling is conducted after warming and heat preserving are conducted, the follow-up rolling heating time is 0.5 h, the temperature of a heating furnace is lowered by 6 DEG C-10 DEG C when rolling is conducted every time, the rolling speed is 0.5-0.7 m/s, and the press amount is 20%-30% every time; after rolling is conducted for three times, the sheet is cut in the rolling direction, returned to the furnace to be heated and then rolled in the direction perpendicular to the direction of rolling last time; the rolled sheet is immediately straightened on a straightening machine, and burrs are cut off on a sheet shear; and low-temperature annealing is conducted, oxides and small pits on the surface are removed, and the AZ33m magnesium alloy sheet is packed through a fresh-keeping film. According to the rolling method for the AZ33m magnesium alloy sheet, the problems that the requirement for a blank of rolling is high, control over heating and warming in the production process is tedious, AZ33m magnesium alloy is prone to being fractured caused by rolling, and the performance of the AZ33m magnesium alloy sheet is uneven are solved.
Description
Technical field
Plate milling method the invention belongs to rolling magnesium alloy sheet technical field, particularly relates to a kind of AZ33m magnesium alloy thin.
Background technology
At present, magnesium alloy elastic modelling quantity is low: elastic modelling quantity is the performance parameter that engineering material is important, and when magnesium alloy is by External Force Acting, stress can be uniformly distributed in the material, thus avoids and produce overgenerous stress concentration in magnesium alloy；Magnesium alloy specific strength is high: the definition of specific strength is for stress suffered during Materials Fracture divided by self apparent density, and the highest quality of materials showing to reach used by respective strengths of the specific strength of material is the lightest；Magnesium alloy damping performance is excellent: damping refers to owing to extraneous or that system self is intrinsic sex character makes the amplitude of any vibrational system have the characteristic of the trend being gradually reduced.Relatively aluminium alloy, the damping characteristic of magnesium alloy has obvious advantage；Magnesium alloy electromagnetic shielding capability is strong: magnesium alloy has stronger shielding action, can shield electromagenetic wave radiation by shielding alternating electric field and magnetic field；Magnesium alloy processability is good: the cutting speed of magnesium alloy is the most a lot of compared with aluminium alloy and steel etc.；The lattice structure of magnesium is hcp (close-packed hexagonal), magnesium alloy temperature-room type plasticity deformability is poor, plastic forming difficulty under room temperature, but when high temperature, magnesium alloy can occur sliding and twin deformation, under the comprehensive function of two kinds of deformation, plastic forming ability is significantly improved, become and the shape speed importance to magnesium alloy work strengthening in view of stress state during magnesium alloy molded, the most magnesium alloy molded in addition to a small amount of roll forming, other is such as extruding and forges the major way as magnesium alloy plastic forming；
The subject matter that at present magnesium alloy rolling exists is: rolling temperature is too high or too low the most easily ftractures, too high its intensity that directly affects of temperature, and temperature is too low directly affects its plasticity；The performance of rolling gained sheet material is uneven at present, there is anisotropy；Prepared by the production also not having a set of stable ripe rolling mill practice to be applicable to AZ33m magnesium alloy sheet；Along with the present magnesium alloy market demand is expanding, particularly high-strength-toughness magnesium alloy thin plate demand is urgent.
Summary of the invention
It is an object of the invention to provide a kind of method for rolling magnesium alloy sheet, it is intended to solve the difficult problem that mechanical property after easy to crack during the high magnesium alloy rolling of zinc content, magnesium alloy rolling is low and uneven.
The present invention is achieved in that a kind of method for rolling magnesium alloy sheet, and this method for rolling magnesium alloy sheet comprises the following steps:
Blank is chosen: choose AZ33m casting sheet material or extrusion plate；
Blank pretreatment: casting plate surface carried out milling face, removes oxide, to still there being the use buffing machine detail sanding of small part crackle, extrusion plate is without processing；
Blank preheats: opening heating rolling tunnel kiln, temperature is set to 330～350 DEG C, and blank heats with stove, and roller temperature is set to (130～180 DEG C)；
Carrying out after rising gentle temperature retention time 1.5h altogether rolling for the first time, follow-up each rolling post-heating time is 0.5h, often rolls once heating kiln temperature degree and reduces by 6～10 DEG C；
The speed of rolls is 0.5～0.7m/s, and each volume under pressure is 20%～30%；
Roll 3～6 tailing edge rolling direction and be cut into the plank of 400～600mm length, melt down heating and roll, until lamella thickness reaches target thickness along being perpendicular to rolling direction last time again；
Align on straightener immediately rolling complete thin plate, plate shearing machine is cut out deflashing；
Process annealing, (100～150 DEG C) 1 hour
Removing oxide and the surface small rut of the thin plate after process annealing on buffing machine, last preservative film is packed.
Further, in described blank pretreatment, billet size is 500mm (wide) * 10～20mm (thick) * 300～1500mm (length).
Further, described blank preheats: opening heating rolling tunnel kiln, temperature is set to 330～350 DEG C, and blank heats with stove, and roller temperature is set to 130～180 DEG C.
Further, after the rolling for the first time of described stock, follow-up rolling, after rolling, heat time heating time is 0.5h every time, often rolls once heating kiln temperature degree and reduces by 6～10 DEG C.
The present invention solves the problem of AZ33M magnesium alloy rolling difficulty, and general rolling magnesium alloy sheet can only select alloying element low, and particularly zinc element is low, use magnesium alloy extrusion sheet material in the majority, this invented technology is easily controllable, and the thin plate function admirable of rolling and uniformly, does not has anisotropy；Solve and production process heats and rises the problem that temperature control is loaded down with trivial details；Solve AZ33m magnesium alloy rolling easily to ftracture, the problem of difficult forming；Solve the problem that AZ33m magnesium alloy sheet performance is uneven；Improve AZ33m magnesium alloy sheet performance.There is presently no prior art and can reach the present invention effect at rolling AZ33m magnesium alloy sheet；
The present invention is applicable to the pretreatment mode of AZ33m magnesium alloy blank；It is applicable to heating and the temperature control scheme of AZ33m magnesium alloy blank；It is applicable to the rolling mode of the exchange rolling direction of AZ33m magnesium alloy blank；It is applicable to the aligning of AZ33m magnesium alloy blank and last process annealing mode.
Accompanying drawing explanation
Fig. 1 is the AZ33m method for rolling magnesium alloy sheet flow chart that the embodiment of the present invention provides.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Example one
Blank is chosen: choose AZ33m extrusion plate 400mm*400mm*10mm stock；
Blank pretreatment: extrusion plate is without processing；
Blank preheats: opening heating rolling tunnel kiln, temperature is set to 340 DEG C, and blank heats with stove, and roller temperature is set to 150 DEG C；
Carrying out after rising gentle temperature retention time 1.5h altogether rolling for the first time, melting down heat time heating time after follow-up each rolling is 0.5h, often rolls once heating kiln temperature degree and reduces by 8 DEG C；
The speed of rolls is 0.6m/s, and each volume under pressure is the 25% of sheet material dispensing thickness；
Rolling 3 tailing edge rolling directions and be cut into 400 long planks, melt down heating and roll along being perpendicular to rolling direction last time, roll 4 times along this direction, each volume under pressure is 25%, and final lamella thickness reaches 1.33mm.
Align on straightener immediately rolling complete thin plate, plate shearing machine is cut out deflashing；
Process annealing, (100～150 DEG C) 1 hour
Removing oxide and the surface small rut of the thin plate after process annealing on buffing machine, end product board dimension is 400mm*1300mm*1.2mm, then preservative film packaging.
Example performance test
By the light sheet of GB GB/T16865 sampling appeal example, test mechanics results of property is as follows:
The present invention is applicable to the pretreatment mode of AZ33m magnesium alloy blank；It is applicable to heating and the temperature control scheme of AZ33m magnesium alloy blank；It is applicable to the rolling mode of the exchange rolling direction of AZ33m magnesium alloy blank；It is applicable to the aligning of AZ33m magnesium alloy blank and last process annealing mode.
Below in conjunction with the accompanying drawings the application principle of the present invention is further described.
A kind of AZ33m method for rolling magnesium alloy sheet, this AZ33m method for rolling magnesium alloy sheet comprises the following steps:
S101: blank: AZ33m casting sheet material or extrusion plate；
S102: blank pretreatment: casting sheet material need to carry out milling face to surface, remove oxide, as also small part crackle uses buffing machine local somewhat to polish, extrusion plate is without processing, and in the program, billet size is 500mm (wide) * 10～20mm (thick) * 300～1500mm (length)；
S103: blank preheats: opening heating rolling tunnel kiln, temperature is set to 330～350 DEG C, and blank heats with stove, and roller temperature is set to (130～180 DEG C)；
S104: carry out after rising gentle temperature retention time 1.5h altogether rolling for the first time, follow-up rolling heat time heating time is 0.5h, often rolls once heating kiln temperature degree and reduces by 6～10 DEG C；
S105: the speed of rolls is 0.5～0.7m/s, and each volume under pressure is 20%～30%；
S106: roll the plank being cut into later 400～600mm length along rolling direction 3～6 times, melts down heating and rolls, until lamella thickness reaches target thickness along being perpendicular to rolling direction last time；
S107: align on straightener immediately rolling complete thin plate, cuts out deflashing on plate shearing machine；
S108: process annealing, (100～150 DEG C) 1 hour；
S109: get on its oxide and surface small rut at buffing machine, last preservative film packaging product.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included within the scope of the present invention.
Claims (4)
1. a method for rolling magnesium alloy sheet, it is characterised in that this method for rolling magnesium alloy sheet comprises the following steps:
Blank is chosen: choose casting sheet material stock or extrusion plate stock；
Blank pretreatment: casting plate surface carried out milling face, removes oxide, to still there being the use buffing machine detail sanding of small part crackle, extrusion plate is without processing；
Blank preheats: open heating rolling tunnel kiln, blank heats with stove, and roller temperature is arranged；
Carrying out after rising gentle temperature retention time 1.5h altogether rolling for the first time, intensification 1h is incubated 0.5h；For the first time after rolling, follow-up rolling, after rolling, heat time heating time is 0.5h every time, often rolls once heating kiln temperature degree and reduces by 6～10 DEG C DEG C；
The speed of rolls is 0.5～0.7m/s, and each volume under pressure is 20%～30%；
Roll 3～6 tailing edge rolling direction and be cut into the plank of 400～600mm length, melt down heating and roll, until lamella thickness reaches target thickness along being perpendicular to rolling direction last time again；
Align on straightener immediately rolling complete thin plate, plate shearing machine is cut out deflashing；
Process annealing, temperature is 100～150 DEG C, 1 hour；
Removing oxide and the surface small rut of the thin plate after process annealing on buffing machine, last preservative film is packed.
2. method for rolling magnesium alloy sheet as claimed in claim 1, it is characterised in that in described blank pretreatment, billet size is 500mm wide * 10～20mm thickness * 300～1500mm length.
3. method for rolling magnesium alloy sheet as claimed in claim 1, it is characterised in that described blank preheats: opening heating rolling tunnel kiln, temperature is set to 330～350 DEG C, and blank heats with stove, and roller temperature is set to 130～180 DEG C.
4. method for rolling magnesium alloy sheet as claimed in claim 1, it is characterised in that after the rolling for the first time of described stock, follow-up rolling, after rolling, heat time heating time is 0.5h every time, often rolls once heating kiln temperature degree and reduces by 6～10 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610161813.8A CN105817479A (en) | 2016-03-18 | 2016-03-18 | Rolling method for magnesium alloy sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610161813.8A CN105817479A (en) | 2016-03-18 | 2016-03-18 | Rolling method for magnesium alloy sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105817479A true CN105817479A (en) | 2016-08-03 |
Family
ID=56524204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610161813.8A Pending CN105817479A (en) | 2016-03-18 | 2016-03-18 | Rolling method for magnesium alloy sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105817479A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1884896A (en) * | 2006-07-10 | 2006-12-27 | 东北大学 | Method for preparing 300MPa grade and isotropous AZ31 magnesium alloy sheet |
| JP2008163361A (en) * | 2006-12-27 | 2008-07-17 | Mitsubishi Alum Co Ltd | Method for producing magnesium alloy thin sheet having uniformly fine crystal grain |
| CN101653778A (en) * | 2009-09-29 | 2010-02-24 | 哈尔滨工业大学 | Warm-rolling manufacture method for magnesium or magnesium alloy sheet |
| CN101857933A (en) * | 2009-04-10 | 2010-10-13 | 中国科学院金属研究所 | Hot rolling process of high-plasticity and low-anisotropy magnesium alloy and sheet thereof |
| CN103480650A (en) * | 2013-10-09 | 2014-01-01 | 重庆市科学技术研究院 | Magnesium alloy sheet rolling technology |
| CN103882356A (en) * | 2014-03-19 | 2014-06-25 | 吉林大学 | Method for preparing fine-grained magnesium alloy with superplastic deformability |
| CN104384182A (en) * | 2014-09-28 | 2015-03-04 | 洛阳镁鑫合金制品有限公司 | Pressing process of ZK61M magnesium alloy plate |
| CN105234173A (en) * | 2015-11-17 | 2016-01-13 | 贵州大学 | Rolling machining method for improving microstructure texture and mechanical property of magnesium alloy sheet strip |
| CN105349861A (en) * | 2015-11-24 | 2016-02-24 | 北京工业大学 | Magnesium metal plate capable of being quickly rolled and formed and rolling method of magnesium metal plate |
-
2016
- 2016-03-18 CN CN201610161813.8A patent/CN105817479A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1884896A (en) * | 2006-07-10 | 2006-12-27 | 东北大学 | Method for preparing 300MPa grade and isotropous AZ31 magnesium alloy sheet |
| JP2008163361A (en) * | 2006-12-27 | 2008-07-17 | Mitsubishi Alum Co Ltd | Method for producing magnesium alloy thin sheet having uniformly fine crystal grain |
| CN101857933A (en) * | 2009-04-10 | 2010-10-13 | 中国科学院金属研究所 | Hot rolling process of high-plasticity and low-anisotropy magnesium alloy and sheet thereof |
| CN101653778A (en) * | 2009-09-29 | 2010-02-24 | 哈尔滨工业大学 | Warm-rolling manufacture method for magnesium or magnesium alloy sheet |
| CN103480650A (en) * | 2013-10-09 | 2014-01-01 | 重庆市科学技术研究院 | Magnesium alloy sheet rolling technology |
| CN103882356A (en) * | 2014-03-19 | 2014-06-25 | 吉林大学 | Method for preparing fine-grained magnesium alloy with superplastic deformability |
| CN104384182A (en) * | 2014-09-28 | 2015-03-04 | 洛阳镁鑫合金制品有限公司 | Pressing process of ZK61M magnesium alloy plate |
| CN105234173A (en) * | 2015-11-17 | 2016-01-13 | 贵州大学 | Rolling machining method for improving microstructure texture and mechanical property of magnesium alloy sheet strip |
| CN105349861A (en) * | 2015-11-24 | 2016-02-24 | 北京工业大学 | Magnesium metal plate capable of being quickly rolled and formed and rolling method of magnesium metal plate |
Non-Patent Citations (1)
| Title |
|---|
| 常量等: "不同轧制方法制得镁合金板材的组织和织构特点", 《轻合金加工技术》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101857933B (en) | Hot rolling process of high-plasticity and low-anisotropy magnesium alloy and sheet thereof | |
| CN112719179B (en) | Forging method of TC1 titanium alloy bar | |
| CN105234174B (en) | A kind of milling method of magnesium and magnesium alloy strip in razor-thin | |
| CN102586561A (en) | Processing technology of large-size high-strength magnesium alloy sheet | |
| CN103846377A (en) | Cogging forging method for close beta Ti alloy Ti-7333 | |
| CN105290108A (en) | Magnesium alloy sheet strip coupling and deformation combined rolling system and rolling method thereof | |
| CN105525236B (en) | A kind of deformation heat treatment method of refining aluminum alloy crystal grain | |
| CN102229044A (en) | Wide magnesium alloy ultra-thin plate continuous extrusion device and method | |
| CN103276329B (en) | Isothermal processing technology of large-specification sheet of high-strength magnesium alloy | |
| KR101953042B1 (en) | Cast titanium slab for use in hot rolling and exhibiting excellent surface properties after hot rolling, even when omitting blooming and purifying steps, and method for producing same | |
| CN109943792B (en) | Processing method of reinforced magnesium alloy | |
| CN102921731B (en) | Warm-rolling process method of titanium alloy thin plate | |
| CN104368621A (en) | Manufacturing method of metal plate | |
| CN112371725B (en) | Cogging rolling method for TC4 titanium alloy slab ingot and TC4 titanium alloy plate | |
| CN104233136A (en) | Production process for obtaining copper alloy strip with uniform and small grains | |
| CN106623419B (en) | The cold rolling production method of controlled expansion alloy band | |
| CN103230943A (en) | Method for improving bending of head portion of medium plate | |
| CN111389917B (en) | Clad plate rolling device and method for realizing gradient tissue regulation and control | |
| CN110947766B (en) | Tapered roller for weakening edge crack of magnesium alloy plate and rolling method thereof | |
| CN105817479A (en) | Rolling method for magnesium alloy sheet | |
| CN102424938A (en) | Production method of aluminum alloy plate for train car | |
| CN104046863B (en) | The preparation method of big flakiness ratio ultra-high strength and toughness aluminum alloy plate materials | |
| CN102430571B (en) | Four-roll hot milling device for production of magnesium alloy coils | |
| CN105032962B (en) | A kind of extruding method for improving magnesium alloy plate performance | |
| CN104874665B (en) | Isothermal plasticity blanking shears material method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160803 |
|
| RJ01 | Rejection of invention patent application after publication |