CN202398645U - Device for producing arc magnesium alloy sheets - Google Patents
Device for producing arc magnesium alloy sheets Download PDFInfo
- Publication number
- CN202398645U CN202398645U CN2011205071984U CN201120507198U CN202398645U CN 202398645 U CN202398645 U CN 202398645U CN 2011205071984 U CN2011205071984 U CN 2011205071984U CN 201120507198 U CN201120507198 U CN 201120507198U CN 202398645 U CN202398645 U CN 202398645U
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- magnesium alloy
- arc
- die
- extruder
- template
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/06—Making sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
- B21C35/02—Removing or drawing-off work
- B21C35/023—Work treatment directly following extrusion, e.g. further deformation or surface treatment
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
Abstract
The utility model relates to the technical field of nonferrous metal material processing and discloses a device for producing arc magnesium alloy sheets, which comprises an extruder and a bar heating machine. A W-shaped arc extrusion porthole die is arranged in the extruder, the rod heating machine is mounted at the position of an inlet end of the W-shaped arc extrusion porthole die which is formed by the combination of at least one group of W-shaped arc extrusion porthole die plates, each of the at least one group of W-shaped arc extrusion porthole die plates is composed of three circular plate type die plates with W-shaped arc hollow cavity structures, and the three circular plate type die plates are a porthole welding chamber die plate, a W-shaped wavy work die plate and a strength support die backer die plate respectively. According to the device for producing the arc magnesium alloy sheets, W-shaped arc magnesium alloy blank plates can be produced, the device is used for producing wide magnesium alloy sheet strips with sizes larger than the size of an outlet of the extruder, by means of small investments, the wide magnesium alloy sheet strips can be produced, the process is optimized, and the device is reasonable.
Description
Technical field
The utility model relates to the nonferrous metal new material processing technique field, relates in particular to a kind of being used for
ProduceThe equipment of arc magnesium alloy plate.
Background technology
Magnesium is one of element the richest on the earth, in present practical applications, is the metal material that quality (1.74g/cm3) is the lightest, specific strength is the highest, compares with the lightweight engineered plastics, and magnesium alloy has higher elasticity and plastic deformation ability; (2.8g/cm3) compares with aluminium alloy, and magnesium alloy is not only light, and anti-vibration and noise reduction sound ability height, and has very strong decay resistance, capability of electromagnetic shielding, shielding property, recovery utilization rate advantages of higher.Therefore; Be the most desirable, the most practical lightweight structural material in pillar industries such as communications and transportation (automobile), Aero-Space, letterpress, electronics (3C Product) and household electrical appliance, be called as the green engineering material of tool development and application potentiality " 21 century ".
The magnesium alloy application form mainly contains cast magnesium alloy and wrought magnesium alloy.Wrought magnesium alloy is through pressure rolling, extruding; Have advantages such as grain refinement, intensity is high, the extension performance is good; Wherein magnesium alloy sheet is expected extensive use in fields such as machine-building, Aero-Space, automobile, electronics, instrument, chemical industry and digital product; Added value of product and economic benefit are higher, have bright prospects.Carry out research and the application with high-performance magnesium-alloy of automobile, motorcycle the earliest in North America, Europe; The demand of magnesium alloy die casting and deformed magnesium alloy material increases with the amplification of annual 20% fast in recent years, and Japan has thrown huge fund and carried out 3C Product Mg Alloy and application.
With at present ripe magnesium alloy cast compared with techniques, the development of Technology of Plastic Processing such as the forging of magnesium alloy, extruding, rolling, punching press and superplastic forming technology is then relatively slow.
Two kinds of technologies of the general employing of current domestic and international production magnesium alloy sheet:
1, finish rolling again after the casting cogging: casting-milling technology parameter control difficulty, maturity is lower, and technical difficulty is higher.Should not realize that package produces continuously.
2, finish rolling again behind the extrusion blooming, advantage are that good, the easy realization of material structure performance is produced continuously, the rolling supply of material, shortcoming be disposablely have high input, template control difficulty.The restriction of machine outlet size and extruding force owing to be squeezed, the general maximum of 2500t extruder cogging width can only reach about 300, and large-tonnage extruder cost is very expensive.Because magnesium belongs to the close-packed hexagonal crystal structure, at room temperature have only a slide surface, 3 solid matter directions are arranged on the slide surface, so have only 3 slip systems under the room temperature, it is moulding cube all lower with body-centered cubic than the center of area.Under the room temperature, the plasticity of magnesium alloy is relatively poor, deformation and be prone to deformation defect, and this has the decision of magnesium alloy self property, also is the essential reason of restriction magnesium alloy machine-shaping.In extrusion process, material yield intensity is low more, and technology stability is high more; Yield tensile ratio is more little, and extrusion performance is good more.Influence factor has: the crystallite dimension of extruding force, extrusion speed, mold temperature, bar temperature, mould structure, bar aging technique, material etc.The crystallite dimension of material and shape have great influence to the extrusion performance of sheet material.
This shows the high investment of process equipment and inefficient production, the low expensive high volume applications that limits the high-performance magnesium-alloy rolled sheet metal that causes of yield rate.
The utility model content
For overcoming the deficiency of prior art; The purpose of the utility model provides a kind of equipment that is used to produce arc magnesium alloy blanket; Can satisfy the needed mechanical property condition of rolling magnesium alloy plate, control template, the purpose that realizes the cogging of small-sized extruder wide cut degree with the extrusion die and the corollary equipment of brand new ideas.
For realizing the foregoing invention purpose, the utility model adopts following technical scheme:
A kind of equipment that is used to produce the arc magnesium alloy plate comprises: extruder, bar heater, be provided with W shape arc Extrusion Porthole Die for Aluminium Profiles tool in the said extruder, and the arrival end of W shape arc Extrusion Porthole Die for Aluminium Profiles tool is provided with the bar heater; Said W shape arc Extrusion Porthole Die for Aluminium Profiles is constituted by one group of W shape arc Extrusion Porthole Die for Aluminium Profiles plate at least; Every group of rondelle template by three band W shape arc-shaped cavity structures formed, and three rondelle templates are respectively shunting seam chamber template, the wavy working template of W type, strength support die-cushion template.
A kind of equipment that is used to produce the arc magnesium alloy plate, the cavity that said shunting seam chamber template has two sub-circulars is communicated with formation with curved channel; The recessed road of the cavity of said two sub-circulars and curved channel upper end forms arcuate structure, and the protruding road of the cavity of said two sub-circulars and curved channel lower end forms the arc lower structure of two band dihedrals respectively.
A kind of equipment that is used to produce the arc magnesium alloy plate, the wavy working template tool of said W type combines the wavy structure of W type that forms by two arc lower structures with last arcuate structure, and the radian of last arcuate structure is greater than the radian of each arc lower structure.
A kind of equipment that is used to produce the arc magnesium alloy plate, said strength support backing plate have two arc lower structures combine formation with last arcuate structure the wavy structure of W type, and the radian of last arcuate structure equals the radian of each arc lower structure.
Owing to adopt aforesaid technical scheme, the utlity model has following superiority:
A kind of equipment that is used to produce arc magnesium alloy base; Be a kind of can be with the process units of the extrusion equipment rolling cogging wide cut magnesium alloy plate of little tonnage; It is to be the center with little tonnage extruder; Reach blanket---the W shape arc magnesium alloy blanket that supporting die production goes out the wide cut magnesium alloy board, W shape arc magnesium alloy blanket utilizes the camber line of point-to-point transmission forever than the principle of length, reaches the purpose that increases fabric width through the flattening curved surface; Have process optimization, equipment is reasonable, produces the wide cut magnesium alloy board that exceeds the extruder outlet size.Production with less investment, completion wide cut magnesium alloy board.
Description of drawings
Fig. 1 is the device structure sketch map of the utility model broadening W shape arc magnesium alloy blanket;
Fig. 2 is a shunting seam chamber formwork structure sketch map of producing broadening W shape arc magnesium alloy blanket;
Fig. 3 is the wavy working template structural representation of W type of producing broadening W shape arc magnesium alloy blanket;
Fig. 4 is a strength support die-cushion formwork structure sketch map of producing broadening W shape arc magnesium alloy blanket;
Among the figure: 1. front beam, 2. mould chamber, 3. cutting mechanism, 4. ingot-containing tube, 5. upper rail, 6. tension force post; 7. supply the ingot device, 8. piston carriage, 9. hydraulic system, 10. cooler, 11. fuel tanks, 12. main electric cabinets; 13. oil pump, 14. pedestals, 15. prefill valves, 16. auxiliary oil cylinders, 17. master cylinders, 18. main plungers; 19. pressure ram, 20. guide rails, 21 die change cylinders, 22. moving-mold mechanisms, 23. locking cylinders.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Like Fig. 1,2,3, shown in 4: a kind of equipment that is used to produce the arc magnesium alloy plate; Comprise: extruder, bar heater, said extruder by front beam 1, mould chamber 2, cutting mechanism 3, ingot-containing tube 4, upper rail 5, tension force post 6, supply ingot device 7, piston carriage 8, hydraulic system 9, cooler 10, fuel tank 11, main electric cabinet 12, oil pump 13, pedestal 14, prefill valve 15, auxiliary oil cylinder 16, master cylinder 17, main plunger 18, recipient 19, guide rail 20, die change cylinder 21, moving-mold mechanism 22, locking cylinder 23 to form; Described extruder is the existing equipment that generally uses, the bar heater for existing generally uses as extruder the equipment that heats bar is provided; The utility model adopts extruder, the bar heater of existing structure.Be provided with W shape arc Extrusion Porthole Die for Aluminium Profiles tool in the said extruder, the arrival end of W shape arc Extrusion Porthole Die for Aluminium Profiles tool is provided with the bar heater; Said W shape arc Extrusion Porthole Die for Aluminium Profiles is constituted by one group of W shape arc Extrusion Porthole Die for Aluminium Profiles plate at least; Every group of rondelle template by three band W shape arc-shaped cavity structures formed, and three rondelle templates are respectively shunting seam chamber template, the wavy working template of W type, strength support die-cushion template.
The cavity that said shunting seam chamber template has two sub-circulars is communicated with formation with curved channel; The recessed road of the cavity of said two sub-circulars and curved channel upper end forms arcuate structure, and the protruding road of the cavity of said two sub-circulars and curved channel lower end forms the little arc lower structure of two band dihedrals respectively.The wavy working template of said W type has two arc lower structures combine formation with last arcuate structure the wavy structure of W type, and the radian of last arcuate structure is greater than the radian of each arc lower structure.Said strength support backing plate has two arc lower structures combine formation with last arcuate structure the wavy structure of W type, and the radian of last arcuate structure equals the radian of each arc lower structure.
Be example with the AZ31 magnesium alloy below
The magnesium alloy cast bar removes surface casting cold shut, is processed into ￠ 600 poles, in 230 ° of C-350 ° C scope, carries out 5 passage multiaxises and forges, and after 460 ° of C high-temperature agings are handled, is processed to the cylindrical rod base of Ф 240mm through the billet after forging.Magnesium alloy materials after the processing under electron microscope, the average d=0.8 μ of TEM tissue particles m.
Temperature when having second to separate out mutually in the extrusion process condition, the fusion temperature that from the magnesium alloy state diagram, can obtain certain magnesium alloy and alloy.So can obtain the extrusion temperature scope in these two temperature ranges, but this is a rough temperature range.In order to confirm the extrusion temperature scope of this kind magnesium alloy more accurately, need to the diagram of forgeability behaviour of this magnesium alloy and resistance of deformation figure and again crystallization figure analyze and research.It is the highest to obtain in certain temperature range its plasticity from the diagram of forgeability behaviour of magnesium alloy.So the heating-up temperature scope of blank can be chosen within this temperature range.The Mg-Al-Zn structural diagram is a primary foundation of confirming the magnesium alloy extrusion temperature.The fusion temperature of AZ31 is 603 ℃.Since 230 ℃, have second to separate out mutually in the alloy.Therefore, the extrusion temperature scope one of AZ31 fixes in 230～603 ℃ of scopes.Find out that from the diagram of forgeability behaviour of AZ31 magnesium alloy plasticity is the highest in 350～400 ℃ temperature range.Blank heating temperature is 400 ℃ during extruding.
The magnesium alloy deformation temperature range is narrow, and thermal conductivity is good, runs into cold mould and can produce chilling and crack.So will carry out preheating to mould before the extruding, its effect is, the temperature difference when reducing mould and contacting with blank, blank is lowered the temperature unlikely excessive and make plasticity reduction, resistance of deformation increase when making extrusion blank put into mould; Can avoid simultaneously blank surface and central core excessive temperature differentials, unhomogeneity of deformation is increased, so that cause the damage of extrusion and mould.Because blank and mould contact surface are long-pending big, time of contact is long, and mould must be heated to the temperature lower slightly than blank, so the mold preheating temperature scope is 260～300 ℃.
The cylindrical rod base that is heated to 380 ° of C-420 ° C is delivered to the extruding of 2500t extruder, and the extruder structure is by (adopting existing extruder structure) shown in Figure 1; Combination W shape arc extrusion die shown in the wavy working template of W type of the shunting seam chamber template of cylindrical rod through Fig. 2 a, Fig. 2 b, the strength support die-cushion template of Fig. 2 c is squeezed into the wavy magnesium alloy arc of W type as shown in Figure 3.During extruding, the mold heated temperature is that 380～430 ℃, recipient heating-up temperature are 280～320 ℃.
W shape arc extrusion die is about the about 400mm of design discharging opening full-size according to the 2500t extruder; The about 330mm of maximum discharging fabric width designs, as earlier strip being squeezed into cylindrical shape or arc; Subsequent handling adopts special flattening equipment to flatten then, has obtained the strip of wide cut.Consider intensity and difficulty of processing, the disassembly, cleaning of extrusion die, the factor that repairs a die, the utility model has adopted W shape arc Extrusion Porthole Die for Aluminium Profiles tool.
Claims (4)
1. equipment that is used to produce the arc magnesium alloy plate, comprising: extruder, bar heater is characterized in that: be provided with W shape arc Extrusion Porthole Die for Aluminium Profiles tool in the said extruder, the arrival end of W shape arc Extrusion Porthole Die for Aluminium Profiles tool is provided with the bar heater; Said W shape arc Extrusion Porthole Die for Aluminium Profiles is constituted by at least one group of W shape arc Extrusion Porthole Die for Aluminium Profiles plate; Every group of rondelle template by three band W shape arc-shaped cavity structures formed, and three rondelle templates are respectively shunting seam chamber template, the wavy working template of W type, strength support die-cushion template.
2. a kind of equipment that is used to produce the arc magnesium alloy plate according to claim 1 is characterized in that: the cavity that said shunting seam chamber template has two sub-circulars is communicated with formation with curved channel; The recessed road of the cavity of said two sub-circulars and curved channel upper end forms arcuate structure, and the protruding road of the cavity of said two sub-circulars and curved channel lower end forms the arc lower structure of two band dihedrals respectively.
3. a kind of equipment that is used to produce the arc magnesium alloy plate according to claim 1; It is characterized in that: the wavy working template of said W type has two arc lower structures combine formation with last arcuate structure the wavy structure of W type, and the radian of last arcuate structure is greater than the radian of each arc lower structure.
4. a kind of equipment that is used to produce the arc magnesium alloy plate according to claim 1; It is characterized in that: said strength support backing plate has two arc lower structures combine formation with last arcuate structure the wavy structure of W type, and the radian of last arcuate structure equals the radian of each arc lower structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205071984U CN202398645U (en) | 2011-12-08 | 2011-12-08 | Device for producing arc magnesium alloy sheets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205071984U CN202398645U (en) | 2011-12-08 | 2011-12-08 | Device for producing arc magnesium alloy sheets |
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| Publication Number | Publication Date |
|---|---|
| CN202398645U true CN202398645U (en) | 2012-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205071984U Expired - Fee Related CN202398645U (en) | 2011-12-08 | 2011-12-08 | Device for producing arc magnesium alloy sheets |
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| CN (1) | CN202398645U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430608A (en) * | 2011-12-08 | 2012-05-02 | 李跃华 | Equipment and process for producing arc-shaped magnesium alloy plates |
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2011
- 2011-12-08 CN CN2011205071984U patent/CN202398645U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430608A (en) * | 2011-12-08 | 2012-05-02 | 李跃华 | Equipment and process for producing arc-shaped magnesium alloy plates |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20141208 |
|
| EXPY | Termination of patent right or utility model |