CN106734313A - Extrusion die and the method using mould extruding aluminium alloy bits production section bar - Google Patents
Extrusion die and the method using mould extruding aluminium alloy bits production section bar Download PDFInfo
- Publication number
- CN106734313A CN106734313A CN201710089722.2A CN201710089722A CN106734313A CN 106734313 A CN106734313 A CN 106734313A CN 201710089722 A CN201710089722 A CN 201710089722A CN 106734313 A CN106734313 A CN 106734313A
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- China
- Prior art keywords
- mould
- aluminium alloy
- shunting
- recipient
- sizing die
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Classifications
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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
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
-
- 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
- B21C23/01—Extruding metal; Impact extrusion starting from material of particular form or shape, e.g. mechanically pre-treated
-
- 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
- B21C23/14—Making other products
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
Abstract
The invention discloses a kind of extrusion die and the method using mould extruding aluminium alloy bits production section bar, belong to mould applications, utilization of turning one's head again is considered to be worth doing for aluminium alloy, it includes that, at least provided with shunting mould, sizing die in recipient, recipient, shunting mould is located at material block one end to be extruded, sizing die is located at the port of export of shunting mould, wherein described divergent die tool includes that, around the uniform tap hole of central axis, the sizing die includes collection chamber, metering hole, metering hole and collection chamber insertion；The shunting mould is connected with sizing die by dismountable mode.In view of above-mentioned technical proposal, the recovery that can realize aluminium alloy bits of the invention and utilization, reduce the benefit of cost recovery, improve product quality and recycling.
Description
Technical field
The invention belongs to mould applications, specifically, more particularly to a kind of extrusion die and closed using the mould extruded aluminium
The method of gold bits production section bar.
Background technology
Aluminium alloy extrusions the industrial circle such as automobile, ship one-level building etc. civil area using it is relatively broad and in occupation of
Consequence, usage amount is huge.
The more aluminium alloy that dries often is produced to consider to be worth doing during shaping due to aluminium alloy extrusions, unsuitable stacking
Mode easily produces larger potential safety hazard.And remelting recovery is directly carried out to these aluminium alloys bits and there is oxidizing fire seriously,
The rate of recovery is low.A kind of being considered to be worth doing to aluminium alloy is needed in manufacture process carry out the method that high efficiente callback is utilized.
The content of the invention
It is an object of the invention to provide a kind of extrusion die and the side using mould extruding aluminium alloy bits production section bar
Method, the recovery that it can realize aluminium alloy bits and utilization, reduce the benefit of cost recovery, improve product quality and recycling.
To reach above-mentioned purpose, the present invention is achieved by the following technical solutions：
At least provided with shunting mould, sizing die in a kind of extrusion die, including recipient, recipient, shunting mould position
In material block one end to be extruded, sizing die is located at the port of export of shunting mould, wherein divergent die tool is included around central axis
Uniform tap hole, the sizing die includes collection chamber, metering hole, metering hole and collection chamber insertion；It is described shunting mould with
Sizing die is connected by dismountable mode.
Further speaking, heretofore described tap hole is flat mouth arcuate structure, and the quantity of tap hole is 3.
Further speaking, heretofore described shunting mould is connected with sizing die by bolt hole and fastening bolt.
Further speaking, heretofore described shunting mould is provided with guiding frustum knot with the connecting end surface of sizing die
Structure.
A kind of to consider the method for producing section bar to be worth doing using above-mentioned extrusion die extruding aluminium alloy, the method comprises the following steps,
First, clean aluminium alloy bits are put into metal scrap metal machine and are pressed into cylindrical aluminium alloy material block, material block diameter is small
In recipient diameter 10mm~15mm, material tile height is 50~100mm, and material block density is 2.55~2.6g/cm3；
2nd, material block is put into preheating furnace and is preheated to 480~520 DEG C with the firing rate of 10~25 DEG C/min；
3rd, material block is positioned in extruder cylinder one by one, carries out upset exhaust, with speed as 8m~12m/min extruding
Go out aluminium alloy extrusions, its shunting mold temperature is 480~500 DEG C, and recipient temperature is 380~420 DEG C, and extrusion ratio is 10：1~
100：1.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention compared with other recovery aluminium alloy scrap techniques, is not required to using the method for aluminium alloy bits extruding production section bar
Want melting, it is not necessary to use flux, save melting, cast, cutting, peeling of extrusion ingot in aluminium alloy extruded production process etc.
Operation, enormously simplify production technology, shorten the production cycle, save mass energy, and its rate of recovery is up to more than 95%, drop
Low production cost.The method can strengthen aluminium alloy extrusions intensity and crystal grain thinning simultaneously.
Brief description of the drawings
Fig. 1 is the structural representation of sizing die in the present invention.
Fig. 2 is the sectional view of shunting mould in the present invention.
Fig. 3 is the front view of shunting mould in the present invention.
Fig. 4 is use state of the invention and annexation schematic diagram.
In figure：1st, sizing die；2nd, bolt hole；3rd, tap hole；4th, metering hole；5th, mould is shunted；6th, tap hole；7th, guide
Frustum structure；8th, recipient.
Specific embodiment
Technical scheme described herein is described further with reference to embodiment.
Embodiment 1：At least provided with shunting mould 5, sizing die in a kind of extrusion die, including recipient 8, recipient 8
1, shunting mould 5 is located at material block one end to be extruded, and sizing die 1 is located at the port of export of shunting mould 5, wherein the divergent die has
5 include that, around the uniform tap hole 6 of central axis, the sizing die 1 includes collection chamber 3, metering hole 4, metering hole 4 and collection chamber
3 insertions；The shunting mould 5 is connected with sizing die 1 by dismountable mode.
Embodiment 2：A kind of extrusion die, wherein the tap hole 3 is flat mouth arcuate structure, and the quantity of tap hole 3 is
Three.The shunting mould 5 is connected with sizing die 1 by bolt hole 2 and fastening bolt.Shunting mould 5 and the plug die
The connecting end surface of tool 1 is provided with guiding frustum structure 7.The structure and annexation of remainder and the knot described in a upper embodiment
Structure and annexation are identical.
Embodiment 3：A kind of method of extrusion die extruding aluminium alloy bits production section bar described in use above-described embodiment, wherein
The method is comprised the following steps：
First, clean aluminium alloy bits are put into metal scrap metal machine and are pressed into cylindrical aluminium alloy material block, material block diameter is small
In recipient diameter 10mm~15mm, heating is prevented to be put into recipient after expanding, material tile height is 50~100mm,
Material block density is 2.55~2.6g/cm3；
2nd, material block is put into preheating furnace and is preheated to 480~520 DEG C with the firing rate of 10~25 DEG C/min；
3rd, material block is positioned in extruder cylinder one by one, carries out upset exhaust, with speed as 8m~12m/min extruding
Go out aluminium alloy extrusions, its shunting mold temperature is 480~500 DEG C, and recipient temperature is 380~420 DEG C, and extrusion ratio is 10：1~
100：1.
In view of above-described embodiment, when in use, its course of work and principle are as follows for the present invention：
Extrusion die described herein, including recipient 8, shunting mould 5 and sizing die 1, wherein shunting mould 5
With sizing die 1 positioned at the inside of recipient 8, and connected by fastening bolt.Recipient 8 is used to fix above-mentioned two function
Mould, at the same also be used for hold aluminium alloy crumble block to be extruded, facilitate extruder align apply active force so that aluminium alloy into
Type.
Density is not high after material cake is pressed into for aluminium alloy bits, expects there is space in the middle of cake, if above-mentioned material cake is directly placed into
Carried out in extruder if shaping extrusion, the place for having space can cause Surface of profile pit occur so that product quality is not
It is qualified.And increase has shunting mould 5 in this application, shunting mould 5 includes two or more tap holes 6, the work of tap hole 6
With being to solve the above problems.After shunting mould 5, cake meeting split flow multiply in extrusion process is expected, and multiply is collected
In the collection chamber 3 of sizing die 1.After being sufficiently mixed in collection chamber 3, originally in the aluminium alloy material in material cake
Space filled, by metering hole 1 extrude product pit defect be resolved, product percent of pass gets a promotion.
In the present invention, 480~520 DEG C are preheated in preheating furnace using the firing rate of 10~25 DEG C/min, it adds
Hot time control is 20~50min, and the shortening of heat time means to reduce the reduction that aluminium alloy considers degree of oxidation to be worth doing, compared to
Improve resource utilization within 2 hours during normal heating.
Claims (5)
1. a kind of extrusion die, including recipient (8), it is characterised in that：At least provided with shunting mould (5), fixed in recipient (8)
Footpath mould (1), shunting mould (5) positioned at material block one end to be extruded, sizing die (1) positioned at shunting mould (5) the port of export, its
Described in shunting mould (5) including around the uniform tap hole of central axis (6), the sizing die (1) including collection chamber (3),
Metering hole (4), metering hole (4) and collection chamber (3) insertion；Shunting mould (5) is with sizing die (1) by dismountable side
Formula is connected.
2. extrusion die according to claim 1, it is characterised in that：The tap hole (3) is flat mouth arcuate structure, and point
The quantity of discharge orifice (3) is 3.
3. extrusion die according to claim 1, it is characterised in that：Shunting mould (5) passes through with sizing die (1)
Bolt hole (2) and fastening bolt are connected.
4. extrusion die according to claim 1, it is characterised in that：Shunting mould (5) and the company of sizing die (1)
Contact surface is provided with guiding frustum structure (7).
5. a kind of method that utilization claim 1 produces section bar to the extrusion die extruding aluminium alloy bits described in claim 4, its
It is characterised by：The method comprises the following steps,
First, clean aluminium alloy bits are put into metal scrap metal machine and are pressed into cylindrical aluminium alloy material block, material block diameter is less than crowded
Pressure cylinder diameter 10mm~15mm, material tile height is 50~100mm, and material block density is 2.55~2.6g/cm3；
2nd, material block is put into preheating furnace and is preheated to 480~520 DEG C with the firing rate of 10~25 DEG C/min；
3rd, material block is positioned in extruder recipient one by one, carries out upset exhaust, with speed as 8m~12m/min squeezes out
Aluminium alloy extrusions, its shunting mold temperature is 480~500 DEG C, and recipient temperature is 380~420 DEG C, and extrusion ratio is 10：1~
100：1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710089722.2A CN106734313A (en) | 2017-02-20 | 2017-02-20 | Extrusion die and the method using mould extruding aluminium alloy bits production section bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710089722.2A CN106734313A (en) | 2017-02-20 | 2017-02-20 | Extrusion die and the method using mould extruding aluminium alloy bits production section bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106734313A true CN106734313A (en) | 2017-05-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710089722.2A Pending CN106734313A (en) | 2017-02-20 | 2017-02-20 | Extrusion die and the method using mould extruding aluminium alloy bits production section bar |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4028795A (en) * | 1974-12-10 | 1977-06-14 | Riken Keikinzoku Kogyo Kabushiki Kaishi | Method of manufacturing extruded structural profiles from aluminum based metal scraps |
| JPS5347362A (en) * | 1976-10-13 | 1978-04-27 | Nippon Light Metal Co | Aluminum scrap extruding |
| CN101219448A (en) * | 2008-01-29 | 2008-07-16 | 重庆大学 | Magnesium alloy tube extrusion die without cleaning mold |
| CN102601148A (en) * | 2012-03-21 | 2012-07-25 | 西北工业大学 | Equal-channel corner split-flow spreading extrusion molding mould of aluminium alloy plate material |
| CN103537502A (en) * | 2013-11-04 | 2014-01-29 | 张家港市昊天金属科技有限公司 | Aluminium profile extrusion process |
| CN104128381A (en) * | 2014-08-21 | 2014-11-05 | 无锡市陆区内河装卸机械厂 | Extrusion die for machining end enclosure |
-
2017
- 2017-02-20 CN CN201710089722.2A patent/CN106734313A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4028795A (en) * | 1974-12-10 | 1977-06-14 | Riken Keikinzoku Kogyo Kabushiki Kaishi | Method of manufacturing extruded structural profiles from aluminum based metal scraps |
| JPS5347362A (en) * | 1976-10-13 | 1978-04-27 | Nippon Light Metal Co | Aluminum scrap extruding |
| CN101219448A (en) * | 2008-01-29 | 2008-07-16 | 重庆大学 | Magnesium alloy tube extrusion die without cleaning mold |
| CN102601148A (en) * | 2012-03-21 | 2012-07-25 | 西北工业大学 | Equal-channel corner split-flow spreading extrusion molding mould of aluminium alloy plate material |
| CN103537502A (en) * | 2013-11-04 | 2014-01-29 | 张家港市昊天金属科技有限公司 | Aluminium profile extrusion process |
| CN104128381A (en) * | 2014-08-21 | 2014-11-05 | 无锡市陆区内河装卸机械厂 | Extrusion die for machining end enclosure |
Non-Patent Citations (2)
| Title |
|---|
| 邓小民等: "《金属挤压与拉拔工程学》", 31 January 2014, 合肥：合肥工业大学出版社 * |
| 雷步芳等: "《铝及铝合金挤压工艺及设备》", 30 November 2014, 北京：国防工业出版社 * |
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