CN202398646U - Mould for producing wide magnesium alloy plates by aid of small-tonnage extruder - Google Patents
Mould for producing wide magnesium alloy plates by aid of small-tonnage extruder Download PDFInfo
- Publication number
- CN202398646U CN202398646U CN2011205072065U CN201120507206U CN202398646U CN 202398646 U CN202398646 U CN 202398646U CN 2011205072065 U CN2011205072065 U CN 2011205072065U CN 201120507206 U CN201120507206 U CN 201120507206U CN 202398646 U CN202398646 U CN 202398646U
- Authority
- CN
- China
- Prior art keywords
- mould
- magnesium alloy
- tonnage extruder
- arc
- extruder
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to the technical field of processing of new nonferrous metal materials, and discloses a mould for producing wide magnesium alloy plates by the aid of a small-tonnage extruder. A W-shaped arc extrusion distributing mould is positioned at the front end of a bar heater in the small-tonnage extruder and comprises at least one group of W-shaped arc extrusion distributing mould boards, and each group of W-shaped arc extrusion distributing mould boards comprises three circular mould boards including a distributing welding chamber mould board (1), a W-shaped wavy working surface mould board (2) and a strength supporting pad mould board (3) respectively. The mould is designed by the aid of the principle that an arc between two points is permanently longer than a straight line, W-shaped arc magnesium alloy plate slabs are extruded by the aid of the small-tonnage extruder, and wide magnesium alloy strips larger than an outlet of the extruder can be produced by means of subsequent flattening and coiling procedures.
Description
Technical field
The utility model includes non-ferrous metal materials processing technology field, relates in particular to a kind of mould that is used for little tonnage extruder production wide cut 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.
Summary of the invention
For overcoming the deficiency of prior art, the purpose of the utility model provides a kind of mould that is used for little tonnage extruder production wide cut magnesium alloy plate.
For realizing the foregoing invention purpose, the utility model adopts following technical scheme:
A kind of mould that is used for little tonnage extruder production wide cut magnesium alloy plate, described mould is a W shape arc Extrusion Porthole Die for Aluminium Profiles tool, is positioned at the front end of little tonnage extruder 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, and described one group of W shape arc Extrusion Porthole Die for Aluminium Profiles plate is made up of three rondelle templates; Described three rondelle templates are respectively shunting seam chamber template, the wavy working face template of W type, strength support backing plate.
A kind of mould that is used for little tonnage extruder production wide cut magnesium alloy plate, said shunting seam chamber template are communicated with curved channel by the cavity of two sub-circulars and constitute; 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 mould that is used for little tonnage extruder production wide cut magnesium alloy plate; The wavy working face 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.
A kind of mould that is used for little tonnage extruder production wide cut 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 is identical with the radian of each arc lower structure.
Owing to adopt aforesaid technical scheme, the utlity model has following beneficial effect:
A kind of mould that is used for little tonnage extruder production wide cut magnesium alloy plate; Utilize the camber line of point-to-point transmission to form than the principle design of length forever; And cooperate little tonnage extruder to squeeze out W shape arc magnesium alloy blanket; Through follow-up flattening, coiling process, can produce the wide cut magnesium alloy board that exceeds the extruder outlet size.
Description of drawings
Fig. 1 is the shunting seam chamber formwork structure sketch map of the utility model;
Fig. 2 is the wavy working face formwork structure of a w type sketch map;
Fig. 3 is a strength support backing plate structural representation;
Among the figure: 1. shunting seam chamber template, the 2. wavy working face template of W type, 3. strength support backing plate, 4. sub-circular cavity, 5. curved channel is 6. gone up arcuate structure, 7. the arc lower structure.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Like Fig. 1,2, shown in 3: a kind of mould that is used for little tonnage extruder production wide cut magnesium alloy plate; The front end that is positioned at little tonnage extruder bar heater has shape arc Extrusion Porthole Die for Aluminium Profiles tool; Said W shape arc Extrusion Porthole Die for Aluminium Profiles tool is constituted by one group of W shape arc Extrusion Porthole Die for Aluminium Profiles plate at least, and one group of W shape arc Extrusion Porthole Die for Aluminium Profiles plate is made up of three rondelle templates.Said three rondelle templates are respectively the wavy working face template of shunting seam chamber template 1, W type 2, strength support backing plate 3.
As shown in Figure 1: said shunting seam chamber template 1 has two sub-circular cavitys 4 and is communicated with formation with curved channel 5; Said two sub-circular cavitys 4 form arcuate structure 6 with the recessed road of curved channel 5 upper ends, and the protruding road of the cavity of said two sub-circulars and curved channel lower end forms the arc lower structure 7 of two band dihedrals respectively.
As shown in Figure 2: the wavy working face template 2 of said W type has two arc lower structures 7 combine formation with last arcuate structure 6 the wavy structure of wide chamber W type, and the radian of last arcuate structure 6 is greater than the radian of each arc lower structure 7.
As shown in Figure 3: said strength support backing plate 3 has between two arc lower structures 7 and to combine the wavy structure of flat chamber W type that forms with last arcuate structure 6, and the radian of last arcuate structure 6 equals the radian of each arc lower structure 7.
Be example with the AZ31 magnesium alloy below
During use, with pack into the front end of bar heater in the little tonnage extruder of the mould of production wide cut magnesium alloy plate, concrete job step is following:
At first magnesium alloy cast billet process is forged the cylindrical rod base that is processed into Ф 240mm; Again the cylindrical rod base is heated to 380 ° of C-420 ° C, delivers to the extruding of 2500t extruder, be squeezed into W shape magnesium alloy arc through the W shape arc Extrusion Porthole Die for Aluminium Profiles tool shown in the figure.Its extrusion process; As adopting by one group of W shape arc Extrusion Porthole Die for Aluminium Profiles plate or organizing W shape arc Extrusion Porthole Die for Aluminium Profiles plate more; When the cylindrical rod base is communicated with the cavity that constitutes through the cavity by two sub-circulars on first shunting seam chamber template 1 of three rondelle templates with curved channel; Get into the cavity on second wavy working face template of w type by the wavy structure of wide chamber w type that combines with last arcuate structure between two arc lower structures to form; Get into the cavity on the 3rd the strength support backing plate 3 again, squeeze out arc from the outlet of 2500t extruder by the wavy structure of flat chamber w type that combines with last arcuate structure between two arc lower structures to form.Subsequently; The first road arc roller flattening machine through subsequent handling carries out that preview is flat, the second road flat pattern roll flattening machine flattens; With 5% drafts the magnesium alloy plate after flattening, band are carried out warm-rolling through the 3rd road polishing flat roll mill again; Eliminate the extruding slide mark on magnesium plate surface, finally reach the qualified magnesium alloy plate of fabric width 620mm, surface quality and template, again through crimping machine rolling, packing, warehouse-in.
Claims (4)
1. mould that is used for little tonnage extruder production wide cut magnesium alloy plate, it is characterized in that: described mould is a W shape arc Extrusion Porthole Die for Aluminium Profiles tool, is positioned at the front end of little tonnage extruder bar heater; Said W shape arc Extrusion Porthole Die for Aluminium Profiles tool is constituted by one group of W shape arc Extrusion Porthole Die for Aluminium Profiles plate at least; Described every group of W shape arc Extrusion Porthole Die for Aluminium Profiles tool is made up of three rondelle templates; Said three rondelle templates are respectively shunting seam chamber template (1), the wavy working face template of W type (2), strength support backing plate (3).
2. a kind of mould that is used for little tonnage extruder production wide cut magnesium alloy plate according to claim 1, it is characterized in that: said shunting seam chamber template (1) is communicated with formation by two sub-circular cavitys (4) with curved channel (5); Said two sub-circular cavitys (4) form arcuate structure (6) with the recessed road of curved channel (5) upper end, and the protruding road of the cavity of said two sub-circulars and curved channel lower end forms the arc lower structure (7) of two band dihedrals respectively.
3. a kind of mould that is used for little tonnage extruder production wide cut magnesium alloy plate according to claim 1; It is characterized in that: two arc lower structures (7) of the wavy working face template of said W type (2) combine the wavy structure of wide chamber W type of formation with last arcuate structure (6), the radian of last arcuate structure (6) is greater than the radian of each arc lower structure (7).
4. a kind of mould that is used for little tonnage extruder production wide cut magnesium alloy plate according to claim 1; It is characterized in that: said strength support backing plate (3) has two arc lower structures (7) combine formation with last arcuate structure (6) the wavy structure of flat chamber W type, and the radian of last arcuate structure (6) is identical with the radian of each arc lower structure (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205072065U CN202398646U (en) | 2011-12-08 | 2011-12-08 | Mould for producing wide magnesium alloy plates by aid of small-tonnage extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205072065U CN202398646U (en) | 2011-12-08 | 2011-12-08 | Mould for producing wide magnesium alloy plates by aid of small-tonnage extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202398646U true CN202398646U (en) | 2012-08-29 |
Family
ID=46696323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205072065U Expired - Fee Related CN202398646U (en) | 2011-12-08 | 2011-12-08 | Mould for producing wide magnesium alloy plates by aid of small-tonnage extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202398646U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008377A (en) * | 2012-12-21 | 2013-04-03 | 重庆市科学技术研究院 | Novel extrusion molding method for magnesium alloy plate |
-
2011
- 2011-12-08 CN CN2011205072065U patent/CN202398646U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008377A (en) * | 2012-12-21 | 2013-04-03 | 重庆市科学技术研究院 | Novel extrusion molding method for magnesium alloy plate |
| CN103008377B (en) * | 2012-12-21 | 2015-10-07 | 重庆市科学技术研究院 | A kind of novel magnesium alloy plate extruding formation process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102430575B (en) | Process and device for flattening W-like arc-shaped magnesium alloy blank plate | |
| CN103008377B (en) | A kind of novel magnesium alloy plate extruding formation process | |
| CN102489958B (en) | Process and equipment for manufacturing wide-width magnesium alloy plate in coils | |
| CN103898424B (en) | A kind of magnesium alloy grains method | |
| CN206083461U (en) | Magnesium alloy extrusion die | |
| CN102229044B (en) | Wide magnesium alloy ultra-thin plate continuous extrusion device and method | |
| CN104438415A (en) | Multi-directional composite multi-channel screw extrusion die for metal blank | |
| CN101716593A (en) | Magnesium alloy sheet rolling method | |
| CN102179422B (en) | Method for preparing metal plane plate | |
| CN102814325A (en) | Method for rolling large-sized fine grain magnesium alloy plate | |
| CN105206351A (en) | Preparation technology of copper and aluminum combined flat wire | |
| CN103273274B (en) | Forming method for magnesium alloy boards | |
| CN202399016U (en) | Equipment for producing wide magnesium alloy plates in coil | |
| CN202398646U (en) | Mould for producing wide magnesium alloy plates by aid of small-tonnage extruder | |
| CN102430608B (en) | Equipment and process for producing arc-shaped magnesium alloy plates | |
| CN100488653C (en) | Method for preparing high-temperature-room type plasticity magnesium alloy sheet material | |
| CN202402929U (en) | Arc-shaped magnesium alloy blank plate used for producing wide magnesium alloy plate strip | |
| CN202701012U (en) | Plate non-equivalent channel angular extrusion-rolling device | |
| CN105234630B (en) | A kind of metal frame section and its processing method | |
| CN202398645U (en) | Device for producing arc magnesium alloy sheets | |
| CN202398608U (en) | Device for flattening W-shaped arc magnesium alloy blank plate | |
| CN106881369B (en) | A kind of two-way composite extrusion die and extrusion process of magnesium alloy plate and belt | |
| CN202555625U (en) | Magnesium alloy blank plate flattening machine | |
| CN202402931U (en) | Straight plate-shaped wide magnesium alloy blank plate | |
| CN204276558U (en) | Metal stock multidirectional compound multichannel screw extrusion mould |
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: 20151208 |
|
| EXPY | Termination of patent right or utility model |