CN203817082U - Semi-solid backward extrusion forming mold for double-layer metal composite pipe - Google Patents
Semi-solid backward extrusion forming mold for double-layer metal composite pipe Download PDFInfo
- Publication number
- CN203817082U CN203817082U CN201420240064.4U CN201420240064U CN203817082U CN 203817082 U CN203817082 U CN 203817082U CN 201420240064 U CN201420240064 U CN 201420240064U CN 203817082 U CN203817082 U CN 203817082U
- Authority
- CN
- China
- Prior art keywords
- recipient
- extrusion
- extrusion container
- double
- semi
- 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.)
- Active
Links
Abstract
The utility model providesa semi-solid backward extrusion forming mold for a double-layer metal composite pipe, belongs to the field of semi-solid forming, and relates to the technical field of production of double-layer metal composite pipes, in particular to a mold structure for production of the pipes. The semi-solid backward extrusion forming mold comprises an outer extrusion container provided with a closed lower base, wherein an inner extrusion container is coaxially arranged in the outer extrusion container, the lower end of the inner extrusion container is in sealing connection with the lower base of the outer extrusion container, the upper end surface of the inner extrusion container is lower than the upper end surface of the outer extrusion container, an inner extrusion stem connected with a slider of a press is arranged in the inner extrusion container, and an annular outer extrusion stem connected with the slider of the press is arranged in an annular cavity formed by the inner extrusion container and the outer extrusion container. The mold structure is simple, reasonable and easy to implement; during an extrusion process, inner-layer blank and outer-layer blank are mutually contacted and welded under the actions of diffusion and friction, the technological process is short, the energy consumption is low, and the quality of a bonding interface of the obtained double-layer metal pipe is superior to a composite pipe obtainedby a forward extrusion mold.
Description
Technical field
The utility model belongs to semi-solid-state shaping field, relates to the production technical field of Double layer metal composite pipe, particularly its production mould structure.
Background technology
Double-layer composite pipe is a kind of advanced tubing developing rapidly in the last few years, and its internal layer and the different types of material of outer employing, have respectively different character, is suitable for different working environments.Double-layer composite pipe is mainly used in the fields such as electronic apparatus, automobile, communications and transportation, petrochemical industry, HVAC and Aero-Space.
The conventional manufacture method of double-layer composite pipe has pair welding method, casting method and extrusion forming method at present.Wherein, adopt the multiple tube that welding method is produced to there is very significantly defect: between inner tube and outer tube, be connected with gap, combination interface can not reach metallurgical binding, and this has fatal defect for the key areas such as Aero-Space.And adopt casting method to produce double-layer composite pipe, and although inside and outside layer duct ligation closes interface quality and can be guaranteed, production efficiency is very low, energy consumption is high, and easily produces tensile phenomenon in forming process.
For a long time, semisolid extrusion molding double-layer composite pipe all adopts the method for forward extrusion, and not only production efficiency is improved, and multiple tube combination interface is good.But this double-layer composite pipe structure of extrusion has a shortcoming, while faying face position being changed by changing recipient, under identical punch extrusion speed, translational speed after two blanks combinations may be different, this can cause between two kinds of blanks that are in contact with one another relative sliding, this slip has not only affected the quality of faying face but also has wasted material, must adjust the relative slippage that could eliminate the multiple tube while being shaped when two extruding punch speed are mated mutually.And when actual extrusion molding, because two kinds of moulds all will be arranged on the same slide block of extruder, so it is more difficult to control this velocity ratio, thereby can have influence on the quality of final double-layer composite pipe.
Therefore how to find and a kind ofly can realize method that short flow process, near-net-shape can guarantee that again the multiple tube of producing has a good switching performance and be one and have creative and challenging utility model work.
So-called semi-solid processing is to carry out die casting, extruding or die-forging forming to having the solid-liquid mixed slurry of certain liquid phase component, is a kind of manufacturing process between conventional cast (pure liquid state) and forging and stamping (pure solid-state).Compare with common processing method, semi-solid-state metal processing tool has the following advantages: have wide range of applications, every alloy with solid-liquid two-phase region all can be realized semi-solid processing, as aluminium alloy, and the die casting of magnesium alloy, copper alloy, extruding and excellent suitability for press forming; Semi-solid alloy part discharges latent heat, thereby has alleviated the thermal shock to processing mold, and its life-span is increased substantially; Semi solid slurry has liquid phase stream sex change and thixotropy, and resistance of deformation is very little, thereby the very complicated part of section that can be shaped, and realizes near-net-shape, and shortens the process-cycle, has improved the utilization rate of material, is conducive to energy-saving material-saving; Semi solid slurry is filled steadily, without turbulent flow and splash, processing temperature is relatively low, and solidification shrinkage is little, thereby drip molding surfacing is smooth, dense internal organization, pore, the defects such as segregation are few, and crystal grain is tiny, mechanical property is good, and visible semi-solid processing is compared and had great advantage with traditional process technology.
Utility model content
The utility model object is to propose a kind of Double layer metal composite pipe semisolid backward extrusion mould that can improve production efficiency and the quality of double-layer composite pipe.
The utility model is established the outer recipient of Packed lower bottom base, interior recipient is coaxially set in recipient outside, the lower end of described interior recipient and the lower bottom base of outer recipient are tightly connected, the upper surface of described interior recipient is lower than the upper surface of outer extruding bobbin, in interior recipient, arrange the interior pressure ram being connected with the slide block of forcing press, in the annular chamber forming with outer recipient at interior recipient, arrange pressure ram outside the annular being connected with the slide block of forcing press.
The utility model mould structure is simple, reasonable, easy to implement.In the process of extruding, under the effect of diffusion and frictional force, internal layer blank and outer blank are in contact with one another and seam, and technological process is short, energy consumption is low, and the quality of the bimetal pipe combination interface obtaining should be better than the multiple tube that uses forward extrusion mould to obtain.
In order to ensure the temperature of blank and shaping in extrusion process, recipient arranges heater coil outward outside.
Accompanying drawing explanation
Fig. 1 is mould structure schematic diagram of the present utility model.
In figure: 1. lower bottom base; 2. mould trip bolt; 3. outer annular blank; 4. heater coil; 5. outer recipient; 6. outer pressure ram; 7. interior pressure ram; 8. double-layer composite pipe; 9. interior recipient; 10. the bar-shaped blank of internal layer.
The specific embodiment
As shown in Figure 1: the lower end of recipient 5 is by mould trip bolt 2 lower bottom base 1 that is tightly connected outside.Recipient 5 is interior outside coaxially arranges interior recipient 9, and the lower bottom base 2 of the lower end of interior recipient 9 and outer recipient 5 is also tightly connected, and the upper surface of interior recipient 9 is lower than the upper surface of outer extruding bobbin 5.
The interior pressure ram 7 being connected with the slide block of forcing press in the interior layout of interior recipient 9, arranges the annular that with the slide block of forcing press be connected outside pressure ram 7 in the annular chamber forming at interior recipient 9 with outer recipient 5.
The outer heater coil 4 that arranges of recipient 5, can also arrange heat-insulation layer again at heater coil 4 outside.
Claims (2)
1. Double layer metal composite pipe semisolid backward extrusion mould, it is characterized in that comprising the outer recipient of establishing Packed lower bottom base, interior recipient is coaxially set in recipient outside, the lower end of described interior recipient and the lower bottom base of outer recipient are tightly connected, the upper surface of described interior recipient is lower than the upper surface of outer extruding bobbin, in interior recipient, arrange the interior pressure ram being connected with the slide block of forcing press, in the annular chamber forming with outer recipient at interior recipient, arrange pressure ram outside the annular being connected with the slide block of forcing press.
2. Double layer metal composite pipe semisolid backward extrusion mould according to claim 1, is characterized in that recipient arranges heater coil outward outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420240064.4U CN203817082U (en) | 2014-05-13 | 2014-05-13 | Semi-solid backward extrusion forming mold for double-layer metal composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420240064.4U CN203817082U (en) | 2014-05-13 | 2014-05-13 | Semi-solid backward extrusion forming mold for double-layer metal composite pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203817082U true CN203817082U (en) | 2014-09-10 |
Family
ID=51472625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420240064.4U Active CN203817082U (en) | 2014-05-13 | 2014-05-13 | Semi-solid backward extrusion forming mold for double-layer metal composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203817082U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978060A (en) * | 2014-05-13 | 2014-08-13 | 扬州宏福铝业有限公司 | Dual-layer metal composite pipe semi-solid inverted extrusion molding die and applications thereof |
| CN105665463A (en) * | 2016-03-15 | 2016-06-15 | 扬州宏福铝业有限公司 | Semi-solid horizontal extrusion mold for double-layer composite pipes and application thereof |
| CN112024843A (en) * | 2020-08-11 | 2020-12-04 | 昆明理工大学 | Semi-solid back extrusion method for copper alloy shaft sleeve part |
-
2014
- 2014-05-13 CN CN201420240064.4U patent/CN203817082U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978060A (en) * | 2014-05-13 | 2014-08-13 | 扬州宏福铝业有限公司 | Dual-layer metal composite pipe semi-solid inverted extrusion molding die and applications thereof |
| CN105665463A (en) * | 2016-03-15 | 2016-06-15 | 扬州宏福铝业有限公司 | Semi-solid horizontal extrusion mold for double-layer composite pipes and application thereof |
| CN112024843A (en) * | 2020-08-11 | 2020-12-04 | 昆明理工大学 | Semi-solid back extrusion method for copper alloy shaft sleeve part |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106975738B (en) | Vacuum die casting equipment and high vacuum die casting method | |
| CN103978060A (en) | Dual-layer metal composite pipe semi-solid inverted extrusion molding die and applications thereof | |
| CN102226486B (en) | CuAl bimetallic composite pipe and die extrusion molding method thereof | |
| CN103111619B (en) | Hot isostatic pressing two-step forming method of high temperature alloy compact piece | |
| CN203817082U (en) | Semi-solid backward extrusion forming mold for double-layer metal composite pipe | |
| CN101422797A (en) | Metal sheet forming method | |
| CN204262326U (en) | A kind of vehicle manual gear-box case die-casting die casting system | |
| CN205927050U (en) | Device of half solid -state rheology squeeze casting axle sleeve part | |
| CN103736894A (en) | Isothermal forging die and forging technology thereof of magnesium alloy die forge piece of step type structure | |
| CN103831417A (en) | Continuous semisolid forming method for high-silicon aluminum alloy encapsulation shell | |
| CN105499304A (en) | Semi-solid forming method of composite pipe | |
| CN109226750A (en) | Quick forming method for the powder metallurgy titanium alloy blade prefabricated blank with damping boss | |
| CN202398784U (en) | Cast sand mould | |
| CN103736956B (en) | A kind of magnesium alloy semi solid state piles up forming method | |
| CN103990774A (en) | Semi-solid squeeze casting mould for composite bearing bush | |
| CN105665463A (en) | Semi-solid horizontal extrusion mold for double-layer composite pipes and application thereof | |
| CN104625594B (en) | The method of manufacturing technology of rotor of large turbo-type generator profiled-cross-section connector copper pipe | |
| CN103722038B (en) | A kind of lubricating method of hot extrusion steel tube external mold | |
| CN103056369A (en) | Process for producing part by powder metallurgy | |
| CN204220957U (en) | A kind of die casting with partial Pressure core | |
| CN208083410U (en) | A kind of shaping dies of semi-solid squeeze casting shaft sleeve parts | |
| CN206415589U (en) | A kind of built-in hydronic shaping casting mould | |
| CN205780386U (en) | The automobile-used hub splines part that a kind of cold-extrusion technology shapes | |
| CN209647575U (en) | A kind of cooling mold of buried tube type heating | |
| CN206740477U (en) | A kind of bool and mould for being used to test semisolid pressure casting mold-filling capacity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |