CN113399520A - Processing production device for high-strength plastic large-size magnesium alloy sheet - Google Patents
Processing production device for high-strength plastic large-size magnesium alloy sheet Download PDFInfo
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- CN113399520A CN113399520A CN202110790860.XA CN202110790860A CN113399520A CN 113399520 A CN113399520 A CN 113399520A CN 202110790860 A CN202110790860 A CN 202110790860A CN 113399520 A CN113399520 A CN 113399520A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
- B21D13/04—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling
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Abstract
The utility model provides a processing apparatus for producing for moulding jumbo size magnesium alloy sheet by high strength, belongs to non ferrous metal material plastic deformation and application apparatus field, can solve and preset tensile twin crystal in-process at horizontal pressurized at jumbo size magnesium alloy sheet and take place unstability and the process is complicated easily, the problem of inefficiency, including ripple roll and limit for width roll, the ripple roll includes roll and ripple lower roll on the ripple, the limit for width roll includes roll and limit for width lower roll on the ripple, the surface of roll and ripple lower roll is equipped with the longitudinal wave roller shell on the ripple, the surface of roll is equipped with the arch on the limit for width, the surface of limit for width lower roll is equipped with the recess. The width of the groove is equal to the width of the magnesium alloy sheet subjected to bending deformation by corrugation rolling. The width of the corrugated roller sheet is narrowed while the corrugated roller sheet is bent, and then the corrugated roller sheet is flattened by a width limiting roller. By the method, the large-size magnesium alloy sheet is ensured not to be unstable when being transversely pressed, the stretching twin crystals can be continuously and efficiently preset, and finally the continuous processing production of the high-strength plastic large-size magnesium alloy sheet is realized.
Description
Technical Field
The invention belongs to the technical field of plastic deformation and application equipment of non-ferrous metal materials, and particularly relates to a processing and production device for a high-strength plastic large-size magnesium alloy sheet.
Background
The magnesium alloy has lower strength and poorer plastic forming performance at room temperature, and the production and the application of the structural member of the magnesium alloy are seriously restricted. The stretching twin crystal is preset in the magnesium alloy plate, so that the strength and plastic deformation coordination capability of the magnesium alloy plate can be obviously improved. Stretching twin crystals can be preset in the magnesium alloy medium-thick plate by means of pre-rolling and pre-pressing methods, but the large-size magnesium alloy thin plate is easy to be unstable in the deformation process, so that the two methods cannot be adopted. Other pre-twining methods for thin plates generally require the use of multiple sets of dies, which are complicated in process and low in efficiency. Therefore, at present, a production line for improving the strength and the plasticity of the large-size magnesium alloy sheet by presetting the stretching twin crystals in the large-size magnesium alloy sheet is still to be developed.
Disclosure of Invention
The invention can solve the problems that the large-size magnesium alloy sheet is easy to be unstable, the working procedure is complex and the efficiency is low in the transverse pressing preset stretching twin crystal process, and provides a processing and producing device for the high-strength plastic large-size magnesium alloy sheet.
The invention adopts the following technical scheme:
the utility model provides a processing apparatus for producing for moulding jumbo size magnesium alloy sheet by height, includes ripple roll and the limit for width roll that sets gradually along the processing lines, and the ripple roll includes roll and ripple lower roll on the ripple, and the limit for width roll includes roll and limit for width lower roll on the ripple, and the surface of roll and ripple lower roll is equipped with the longitudinal wave roller shell respectively on the ripple, and the surface of roll is equipped with along circumference arch on the limit for width, and the surface of limit for width lower roll is equipped with the recess that matches with the arch. The width of the groove of the width limiting roller is equal to the width of the magnesium alloy sheet rolled by the corrugated roller and subjected to bending deformation.
Further, the diameter of the corrugated roller is the same as that of the width limiting roller.
Furthermore, the upper corrugated roller and the upper width limiting roller are the same in height, and the lower corrugated roller and the lower width limiting roller are the same in height.
Further, the longitudinal wave curve equation of the longitudinal wave roller sleeve is Y =3cos (x/10).
Further, the included angle between the horizontal side and the vertical side of the protrusion is 90 degrees.
After the large-size magnesium alloy sheet passes through the corrugated roller, a corrugated sheet is formed, the width of the corrugated sheet is narrowed, and then the corrugated sheet directly passes through the width limiting roller to generate width limiting, leveling and deformation, so that the large-size magnesium alloy sheet is thickened.
The invention has the following beneficial effects:
compared with the prior art, the invention has obvious advancement, aims at the problems that the large-size magnesium alloy sheet is easy to be unstable in the process of pre-setting twin crystals and cannot be continuously processed and produced, and forces the sheet to be bent and widened in the feeding process by passing the large-size magnesium alloy sheet through the corrugated roller, and then utilizes the width-limiting roller to level. The method has simple and reliable process and accurate data, can realize the purpose of presetting the stretching twin crystal in the large-size magnesium alloy sheet, and simultaneously realizes the continuous processing production of the high-strength plastic large-size magnesium alloy sheet.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of an upper or lower corrugated roll according to the present invention;
FIG. 3 is a schematic structural view of a width-limiting upper roller of the present invention;
FIG. 4 is a schematic view of the configuration of the width-limited lower roll of the present invention;
FIG. 5 is a diagram of the change of the shape and width of a large-size magnesium alloy sheet in the whole processing process;
FIG. 6 is a microstructure diagram before and after deformation, in which (a) is a magnesium alloy sheet before deformation and (b) is a magnesium alloy sheet after deformation;
FIG. 7 is a mechanical property diagram before and after deformation of a large-size magnesium alloy sheet;
wherein: 1-large-size magnesium alloy sheet; 2-an upper corrugated roller; 3-corrugated lower roller; 4-width limiting upper roller; 5-width-limited lower roller; 6-longitudinal wave roller sleeve; 7-bulge; 8-a groove; 9-initial state; 10-bending deformation, width narrowing state; 11-leveled state.
Detailed Description
The invention is further explained with reference to the accompanying drawings.
As shown in the figure, the processing and production device for the high-strength plastic large-size magnesium alloy sheet comprises a corrugated roller and a width limiting roller, adopts a continuous production process combining two-stage rolling procedures, and effectively solves the problem that the large-size magnesium alloy sheet cannot continuously and efficiently preset stretching twin crystals.
The corrugated roller and the width limiting roller have the same roller diameter, and the upper roller and the lower roller of the corrugated roller and the upper roller and the lower roller of the width limiting roller are respectively kept consistent in the height direction.
The corrugated roller is provided with a longitudinal wave type roller sleeve, and after the large-size magnesium alloy sheet passes through the corrugated roller, the corrugated sheet is formed, the width of the corrugated sheet is narrowed, and the width of the corrugated sheet is the same as the width of the groove of the lower roller in the width-limited roller. And then, the magnesium alloy sheet is subjected to width limiting, leveling and deformation directly through a width limiting roller, so that the large-size magnesium alloy sheet is thickened.
The corrugated roller and the width limiting roller comprise an upper roller and a lower roller and are both made of 9Cr2Mo material. The upper and lower rolls of the corrugating roll each have a longitudinal wave type roll sleeve, and the longitudinal wave curve equation is Y =3cos (x/10). The surface of the middle part of an upper roller of the width limiting roller is circumferentially provided with protrusions, the included angle between the horizontal edge of each protrusion and the vertical edge of each protrusion is 90 degrees, the surface of the middle part of a lower roller is circumferentially provided with a groove matched with the protrusions of the upper roller to form a width limiting rolling space, and the included angle between the horizontal edge of the groove and the vertical edge of the groove is 90 degrees. The surface roughness of the projections and the grooves were Ra 1.6. mu.m.
The working process of the invention is as follows:
the large-size magnesium alloy sheet passes through a corrugated roller to form a corrugated sheet, so that the sheet is bent and deformed;
placing the deformed large-size magnesium alloy sheet in a width limiting roller to enable the sheet to generate width limiting, leveling and deformation;
after the rolling mill normally operates, the continuous processing production of the high-strength plastic large-size magnesium alloy sheet can be realized.
The microstructure of the large-size magnesium alloy sheet before and after deformation is represented by a metallographic microscope;
and testing the mechanical properties of the large-size magnesium alloy sheet before and after deformation by using a uniaxial tension test.
As shown in FIG. 6, the microstructure of the large-size magnesium alloy sheet before and after deformation was shown. (a) The structure appearance of the plate before deformation is large and uneven in grain size, and (b) the structure appearance of the plate after deformation is large and a plurality of lens-shaped stretching twin crystals appear. As shown in fig. 7, the strength and elongation of the magnesium alloy sheet after deformation are both significantly improved over the properties of the original sheet before deformation. Therefore, the equipment can preset stretching twin crystals in the large-size magnesium alloy sheet, and can realize the processing production of the high-strength plastic large-size magnesium alloy sheet. The strength and the plasticity of the deformed magnesium alloy sheet are obviously better than those of the magnesium alloy sheet before deformation.
Claims (6)
1. A processing production device for high-strength plastic large-size magnesium alloy sheets is characterized in that: include ripple roll and the limit for width roll that sets gradually along processing lines, the ripple roll includes that roll and ripple lower roll are gone up to the ripple, and the limit for width roll includes that the limit for width goes up roll and limit for width lower roll, and the surface that roll and ripple lower roll are gone up to the ripple is equipped with the longitudinal wave roller shell respectively, and the surface that the roll was gone up to the limit for width is equipped with along circumference protruding, and the surface of limit for width lower roll is equipped with the recess that matches with the arch.
2. The width of the groove of the width limiting roller is equal to the width of the magnesium alloy sheet which is rolled by the corrugated roller and subjected to bending deformation.
3. The processing production device for the high-strength large-size magnesium alloy sheet according to claim 1, characterized in that: the diameter of the corrugated roller is the same as that of the width limiting roller.
4. The processing production device for the high-strength large-size magnesium alloy sheet according to claim 1, characterized in that: the corrugated upper roller and the width limiting upper roller are the same in height, and the corrugated lower roller and the width limiting lower roller are the same in height.
5. The processing production device for the high-strength large-size magnesium alloy sheet according to claim 1, characterized in that: the longitudinal wave curve equation of the longitudinal wave roller sleeve is Y =3cos (x/10).
6. The processing production device for the high-strength large-size magnesium alloy sheet according to claim 1, characterized in that: the included angle between the horizontal edge and the vertical edge of the protrusion is 90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110790860.XA CN113399520A (en) | 2021-07-13 | 2021-07-13 | Processing production device for high-strength plastic large-size magnesium alloy sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110790860.XA CN113399520A (en) | 2021-07-13 | 2021-07-13 | Processing production device for high-strength plastic large-size magnesium alloy sheet |
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| Publication Number | Publication Date |
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| CN113399520A true CN113399520A (en) | 2021-09-17 |
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| CN202110790860.XA Pending CN113399520A (en) | 2021-07-13 | 2021-07-13 | Processing production device for high-strength plastic large-size magnesium alloy sheet |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208427524U (en) * | 2017-10-27 | 2019-01-25 | 江西凯安智能股份有限公司 | One kind being used for the molding device of big flakiness ratio copper plate continuous rolling |
| CN109570233A (en) * | 2018-12-13 | 2019-04-05 | 沈阳理工大学 | A kind of non-homogeneous milling method of periodicity weakening magnesium alloy plate texture |
| CN109848213A (en) * | 2018-12-06 | 2019-06-07 | 南京理工大学 | The method that nonuniform section rolling prepares multiple grain scale magnesium alloy plate |
| CN110293130A (en) * | 2019-05-23 | 2019-10-01 | 太原理工大学 | A kind of method that oblique corrugation inhibits magnesium alloy plate edge to split |
| CN110303043A (en) * | 2019-05-23 | 2019-10-08 | 太原理工大学 | A method of longitudinal corrugation inhibits magnesium alloy plate edge to split |
| CN110340153A (en) * | 2019-07-18 | 2019-10-18 | 太原科技大学 | It is a kind of to be designed suitable for reducing the Casting Roller split on roll-casting of magnesium alloy plate side |
| CN113020261A (en) * | 2021-03-25 | 2021-06-25 | 太原理工大学 | Rolling method of metal composite plate with prefabricated corrugated interface |
-
2021
- 2021-07-13 CN CN202110790860.XA patent/CN113399520A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208427524U (en) * | 2017-10-27 | 2019-01-25 | 江西凯安智能股份有限公司 | One kind being used for the molding device of big flakiness ratio copper plate continuous rolling |
| CN109848213A (en) * | 2018-12-06 | 2019-06-07 | 南京理工大学 | The method that nonuniform section rolling prepares multiple grain scale magnesium alloy plate |
| CN109570233A (en) * | 2018-12-13 | 2019-04-05 | 沈阳理工大学 | A kind of non-homogeneous milling method of periodicity weakening magnesium alloy plate texture |
| CN110293130A (en) * | 2019-05-23 | 2019-10-01 | 太原理工大学 | A kind of method that oblique corrugation inhibits magnesium alloy plate edge to split |
| CN110303043A (en) * | 2019-05-23 | 2019-10-08 | 太原理工大学 | A method of longitudinal corrugation inhibits magnesium alloy plate edge to split |
| CN110340153A (en) * | 2019-07-18 | 2019-10-18 | 太原科技大学 | It is a kind of to be designed suitable for reducing the Casting Roller split on roll-casting of magnesium alloy plate side |
| CN113020261A (en) * | 2021-03-25 | 2021-06-25 | 太原理工大学 | Rolling method of metal composite plate with prefabricated corrugated interface |
Non-Patent Citations (2)
| Title |
|---|
| 李洪力: "限制模压变形法对6061铝合金组织和性能的影响", 《轻合金加工技术》 * |
| 聂慧慧: "大压下量限宽轧制AZ31镁合金板材的边裂行为及强化机制", 《机械工程学报》 * |
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