CN104014607B - Continuous gradation extrudes method and the mould of high muscle class section bar - Google Patents
Continuous gradation extrudes method and the mould of high muscle class section bar Download PDFInfo
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- CN104014607B CN104014607B CN201410218547.9A CN201410218547A CN104014607B CN 104014607 B CN104014607 B CN 104014607B CN 201410218547 A CN201410218547 A CN 201410218547A CN 104014607 B CN104014607 B CN 104014607B
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Abstract
The invention provides method and mould that a kind of continuous gradation extrudes high muscle class section bar, comprise upper die and lower die, the center of described patrix has pod apertures, the front end face of described counterdie is provided with to allow expects hole, the top in material hole is allowed to be multiple groove of distributing side by side of interval and tooth, tooth and allow expect hole bottom surface between there is space, described multiple groove and tooth extend to the rear end face of described counterdie, and described groove height increases from the increment of tooth is linear, until identical with the height of the high muscle tooth of described high muscle class section bar, the edge of the end of described tooth is from allowing material top, hole, tilt to extend from top to bottom, the end of tooth be truncated cone shape split stub bar structure, work strip is provided with at the arrival end of groove.Groove of the present invention and tooth have employed grading structure, split stub bar increment being provided with, and make metal in extrusion process used for forming, achieve gradual change shaping and Radial Flow.Meanwhile, make jib-length reduce half, the mold use life-span obtains the raising of matter.
Description
Technical field
The invention belongs to shape extrusion field, be specifically related to method and mould that continuous gradation extrudes high muscle class section bar.
Background technology
High muscle class section bar is part indispensable in the industries such as machinery, electronics, the effect mainly containing heat radiation and strengthen.Present stage generally adopts the method for extruding to carry out production and preparation.Extruding production has a series of advantage, as high in production efficiency, material inside organization is fine and close, mechanical property good, it is good etc. to save material, heat-transfer effect.
But certain difficulty is still existed for the production of high muscle class section bar, rib due to this kind of section bar is all very high and distribution is closeer, and in extrusion process, the bracketed part of counterdie is very easily impaired, and the mold use life-span is very low, production cost is very high, is difficult to realize large-scale batch production.
Summary of the invention
For Shortcomings in prior art, the invention provides method and mould that a kind of continuous gradation extrudes high muscle class section bar.
The present invention realizes above-mentioned technical purpose by following technological means.
Continuous gradation extrudes the mould of high muscle class section bar, comprise upper die and lower die, the center of described patrix has pod apertures, the rear end face of described patrix with the front end face of counterdie has respectively the projection and depression that shape conforms to, the centre position of the front end face of described counterdie is provided with and pod apertures shape, what size was identical allow material hole, the described top in material hole that allows is multiple groove of distributing side by side of interval and tooth, described tooth and allow expect hole bottom surface between there is space, described multiple groove and tooth extend to the rear end face of described counterdie, and the gradual change from the increment of tooth of described groove height is increased, until identical with the height of the high muscle tooth of described high muscle class section bar, the edge of the end of described tooth is from allowing material top, hole, tilt to extend from top to bottom, the end of described tooth be truncated cone shape split stub bar structure, work strip is provided with at the arrival end of groove.
Preferably, described tooth is identical with the thickness of the height in the space allowed between the bottom surface of expecting hole and the substrate of described high muscle class section bar.
Preferably, the end of described tooth be truncated cone shape split stub bar structure.
Continuous gradation extrudes the method for high muscle class section bar, it is characterized in that, comprises the following steps:
A. homogenizing annealing process is carried out to strand;
B. by blank heating to 480 ~ 500 DEG C, recipient is heated to 440 ~ 460 DEG C, and mold heated, to 460 ~ 480 DEG C, extrudes;
C. the pod apertures of blank through patrix under the effect of dummy block completes predeformation, metal after predeformation edge tilt tooth and be positioned at increment split the effect of stub bar under, realize local deformation and Radial Flow, begin to take shape high muscle tooth, along with the carrying out of extruding, the length of high muscle tooth formed increases gradually, and when the length of high muscle tooth reaches the height of design, blank expects that position that the bottom surface in hole contacts is shaped substrate portion with allowing;
D. topping and afterbody, carries out Quenching Treatment and artificial aging process, intercepts by the actual size of workpiece.
Preferably, in described step b by blank heating to 500 DEG C, recipient is heated to 460 DEG C, and mold heated is to 480 DEG C.
Continuous gradation of the present invention extrudes the mould of high muscle class section bar, reasonably make use of the rigid translation of metal, devise the groove of gradual change and the structure of tooth cleverly, devise at increment and split stub bar, make metal achieve gradual change shaping and Radial Flow, be conducive to high muscle shaping of teeth.Meanwhile, the structure of groove and tooth makes the jib-length of mould reduce half, improves the force-bearing situation of mould bracketed part greatly, and the mold use life-span obtains the raising of matter.
Accompanying drawing explanation
Fig. 1 is the sectional view of described high muscle class section bar.
Fig. 2 is the installation diagram that continuous gradation of the present invention extrudes the mould of high muscle class section bar.
Fig. 3 is the front view of patrix of the present invention.
Fig. 4 is the A-A direction view of patrix of the present invention.
Fig. 5 is the front view of counterdie of the present invention.
Fig. 6 is the B-B direction view of counterdie of the present invention.
Fig. 7 is the C-C direction view of counterdie of the present invention.
Description of reference numerals is as follows:
1-substrate, 2-height muscle tooth, 3-patrix, 4-counterdie, 31-pod apertures, 41-groove, 42-tooth, 43-splits stub bar, 44-work strip, and 45-allows and expects hole.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, the present invention is further illustrated, but protection scope of the present invention is not limited to this.
The structure of high muscle class section bar as shown in Figure 1, is made up of substrate 1 and high muscle tooth 2.Continuous gradation of the present invention extrudes the mould of high muscle class section bar as shown in Figure 2, comprises patrix 3 and counterdie 4, the rear end face of described patrix 3 with the front end face of counterdie 4 has respectively the projection and depression that shape conforms to.As shown in Figure 3, Figure 4, the center of described patrix 3 has pod apertures 31.As shown in Fig. 5, Fig. 6, Fig. 7, the centre position of the front end face of described counterdie 4 is provided with expects hole 45 with pod apertures 31 shape, identical the allowing of size, the described top in material hole 45 that allows is multiple grooves 41 of distributing side by side of interval and tooth 42, described tooth 42 and allow expect hole 45 bottom surface between there is space, described tooth is identical with the thickness of the height in the space allowed between the bottom surface of expecting hole 45 and the substrate 1 of described high muscle class section bar.Described multiple groove 41 and tooth 42 extend to the rear end face of described counterdie 4, and the gradual change from the increment of tooth 42 of described groove 41 height increase until after identical with the height of the high muscle tooth 2 of described high muscle class section bar, extend to the rear end face of counterdie 4 again with the height of high muscle tooth 2, the edge of the end of described tooth 42 be from allow material top, hole 45, tilt to extend from top to bottom, the end of described tooth 42 be truncated cone shape split stub bar 43 structure, be provided with work strip 44 at the arrival end of groove 41.
In the process of extrusion molding, metal predeformation under the effect of patrix 3 pod apertures 31, hole 45 is expected owing to having to allow on the front end face of counterdie 4, edge due to the end of tooth 42 tilts, metal foot after predeformation does not temporarily participate in distortion, and top tooth ends split the effect of stub bar 43 under, metal charge is split to both sides, owing to splitting the double action of stub bar 43 and work strip 44, can be shifted to the direction of groove 41 by the metal of riving, realize the Radial Flow of metal, this process shows as the partial plastic forming of high muscle part.Along with the carrying out of extruding, basicly stable to the metal of Radial Flow by work strip 44 in advance, rigid translation is done to radial direction further under the promotion of subsequent metal, the groove 41 that counterdie 4 is offered just in time can hold the metal of rigid translation, before high muscle part is soon shaped completely, allow and expect that the metal in hole 45 also contacts with the nib of below, be finally shaped substrate 1 part.
For 6063 aluminium alloys, continuous gradation of the present invention is utilized to extrude the method for the Making mold height muscle class section bar of high muscle class section bar, specific as follows:
A. carry out homogenizing annealing process to aluminium alloy strand, technological parameter is as follows: annealing temperature is 560 DEG C, insulation 6h, and be cooled to 250 DEG C with powerful air-flow afterwards, cooling velocity is 350 ~ 500 DEG C/h, stops 0.5h afterwards, then by water cooling to 50 DEG C.
B. by blank heating to 500 DEG C, recipient is heated to 460 DEG C, and mold heated, to 480 DEG C, extrudes.
C. the pod apertures 31 of blank through patrix 3 under the effect of dummy block completes predeformation, metal after predeformation edge tilt tooth 42 and be positioned at increment split the effect of stub bar 43 under, realize local deformation and Radial Flow, begin to take shape high muscle tooth 2, along with the carrying out of extruding, the length of high muscle tooth 2 formed increases gradually, and when the length of high muscle tooth 2 reaches the height of design, blank expects that position that the bottom surface in hole 45 contacts is shaped substrate 1 part with allowing.
D. topping and afterbody, carries out Quenching Treatment and artificial aging process.Intercept by the actual size of workpiece.
The present invention adopts the mould of special construction to prepare the method for high muscle class section bar, makes metal realize progressive deformation and Radial Flow, well solves the problem that high muscle tooth 2 difficulty is shaped.Meanwhile, the bracketed part of mould shortened half compared with originally, and the bracketed part of mould is stressed to be greatly improved, and had had the lifting of matter die life, was particularly suitable for extruding high muscle class section bar.
Described embodiment is preferred embodiment of the present invention; but the present invention is not limited to above-mentioned embodiment; when not deviating from flesh and blood of the present invention, any apparent improvement that those skilled in the art can make, replacement or modification all belong to protection scope of the present invention.
Claims (5)
1. continuous gradation extrudes the mould of high muscle class section bar, comprise patrix (3) and counterdie (4), the center of described patrix (3) has pod apertures (31), the centre position of the front end face of described counterdie (4) is provided with and pod apertures (31) shape, what size was identical allow material hole (45), the described top of material hole (45) that allows is multiple grooves (41) of distributing side by side of interval and tooth (42), described tooth (42) and allow expect hole (45) bottom surface between there is space, described multiple groove (41) and tooth extend to the rear end face of described counterdie (4), and increase to the rear end gradual change of counterdie (4) the increment of described groove (41) height from tooth (42), until identical with the height of the high muscle tooth (2) of described high muscle class section bar, the edge of the end of described tooth is from allowing material hole (45) top, tilt to extend from top to bottom, work strip (44) is provided with at the arrival end of groove (41).
2. continuous gradation according to claim 1 extrudes the mould of high muscle class section bar, it is characterized in that, described tooth (42) is identical with the thickness of the height in the space allowed between the bottom surface of expecting hole (45) and the substrate (1) of described high muscle class section bar.
3. continuous gradation according to claim 1 extrudes the mould of high muscle class section bar, it is characterized in that, the end of described tooth (42) be truncated cone shape split stub bar (43) structure.
4. continuous gradation extrudes the method for high muscle class section bar, it is characterized in that, comprises the following steps:
A. homogenizing annealing process is carried out to strand;
B. by blank heating to 480 ~ 500 DEG C, recipient is heated to 440 ~ 460 DEG C, and mold heated, to 460 ~ 480 DEG C, extrudes;
C. blank completes predeformation through the pod apertures of patrix (3) (31) under the effect of dummy block, metal after predeformation edge tilt tooth and be positioned at increment split the effect of stub bar (43) under, realize local deformation and Radial Flow, begin to take shape high muscle tooth (2), along with the carrying out of extruding, the length of the high muscle tooth (2) formed increases gradually, when the length of high muscle tooth (2) reaches the height of design, blank expects that position that the bottom surface in hole (45) contacts is shaped substrate (1) part with allowing;
D. topping and afterbody, carries out Quenching Treatment and artificial aging process, intercepts by the actual size of workpiece.
5. continuous gradation according to claim 4 extrudes the method for high muscle class section bar, it is characterized in that, in described step b by blank heating to 500 DEG C, recipient is heated to 460 DEG C, and mold heated is to 480 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410218547.9A CN104014607B (en) | 2014-05-22 | 2014-05-22 | Continuous gradation extrudes method and the mould of high muscle class section bar |
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| CN201410218547.9A CN104014607B (en) | 2014-05-22 | 2014-05-22 | Continuous gradation extrudes method and the mould of high muscle class section bar |
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| CN104014607A CN104014607A (en) | 2014-09-03 |
| CN104014607B true CN104014607B (en) | 2016-03-02 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105478510B (en) * | 2015-12-24 | 2018-02-27 | 扬州宏福铝业有限公司 | A kind of production mould of opening type material |
| CN107695118A (en) * | 2017-09-26 | 2018-02-16 | 辽宁忠旺集团有限公司 | A kind of production technology for automobile tail fin profile material |
| CN109570258A (en) * | 2018-11-15 | 2019-04-05 | 中南大学 | A kind of wide cut sheet with rib material and its integral forming method |
Citations (5)
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|---|---|---|---|---|
| CN1604826A (en) * | 2001-12-19 | 2005-04-06 | 昭和电工株式会社 | Extrusion tool, method for manufacturing shaped article with fins, and heat sink |
| WO2006022717A1 (en) * | 2004-08-13 | 2006-03-02 | Vip Tooling, Inc. | Method for manufacturing extrusion die tools |
| CN2848396Y (en) * | 2005-12-18 | 2006-12-20 | 彭秉政 | Heat extrusion on mould for aluminium alloy radiator tube |
| CN201073661Y (en) * | 2007-07-03 | 2008-06-18 | 江阴市江顺模具有限公司 | High cantalever ratio radiator aluminium section bar hanging bridge mosaic type extrusion die |
| CN103801579A (en) * | 2014-02-18 | 2014-05-21 | 扬州宏福铝业有限公司 | Method for extruding extra-large cantilever radiator type section bar by virtue of sectionalized composite mold |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100199738A1 (en) * | 2004-08-13 | 2010-08-12 | Vip Tooling, Inc., (An Indiana Corporation) | Modular extrusion die tools |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1604826A (en) * | 2001-12-19 | 2005-04-06 | 昭和电工株式会社 | Extrusion tool, method for manufacturing shaped article with fins, and heat sink |
| WO2006022717A1 (en) * | 2004-08-13 | 2006-03-02 | Vip Tooling, Inc. | Method for manufacturing extrusion die tools |
| CN2848396Y (en) * | 2005-12-18 | 2006-12-20 | 彭秉政 | Heat extrusion on mould for aluminium alloy radiator tube |
| CN201073661Y (en) * | 2007-07-03 | 2008-06-18 | 江阴市江顺模具有限公司 | High cantalever ratio radiator aluminium section bar hanging bridge mosaic type extrusion die |
| CN103801579A (en) * | 2014-02-18 | 2014-05-21 | 扬州宏福铝业有限公司 | Method for extruding extra-large cantilever radiator type section bar by virtue of sectionalized composite mold |
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