CN103599955B - It is a kind of for alloy state for 6061FT6 Large Flat width thin-wall section mould structure - Google Patents
It is a kind of for alloy state for 6061FT6 Large Flat width thin-wall section mould structure Download PDFInfo
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- CN103599955B CN103599955B CN201310432958.3A CN201310432958A CN103599955B CN 103599955 B CN103599955 B CN 103599955B CN 201310432958 A CN201310432958 A CN 201310432958A CN 103599955 B CN103599955 B CN 103599955B
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Abstract
The present invention disclose it is a kind of for alloy state be 6061FT6 Large Flat width thin-wall section mould structure, mould is constituted using upper die and lower die, two suspension bridges are set in the middle part of the upper mould, form three tap holes, the arrangement of tap hole and profile shapes geometric similarity, the tap hole of the both sides is outwards spreaded into two-stage, and the angle that two-stage is spreaded is respectively 25 °, 5 °, and the bonding container depth of the lower mould is 40mm；The material selection high-quality 4Cr5MoSiV1 Forming Die of mould, mould quench through high temperature, tempering, die hardness value is made to reach 48～49HRC, using the process of two-stage gas nitriding technique, it is ensured that die surface hardness number is in HV950 1150,100～160 μm of nitride thickness.The mould structure of the present invention is simple, reasonable, the segmentation constituted using upper die and lower die is spreaded, diffluence combination die, it is ensured that the quality of seam when section bar is processed, and improves the quality of flat wide thin-wall section, in the time delay mold use life-span, reduce the production cost of the section bar.
Description
Technical field
The present invention relates to the processing mold and processing technology of a kind of structural shape, and in particular to one kind for alloy state is
The mould structure of the Large Flat width thin-wall section of 6061FT6.
Background technology
Green building aluminium alloy structure extrudate is wide in variety up to over one hundred kind, and specification limit is wide, existing green building
With aluminium alloy structure section bar directly as parts using cooperatively with associated part, green building aluminium alloy structure extrudate
Including various special-shaped sections such as hollow profile, solid profile and semi-hollow profile and various special bars；Flat wide thin-wall section
Belong to highly difficult solid profile of the flakiness ratio more than 100, as shown in figure 1, the flat wide thin-wall section by taking WYY1237 section bars as an example
Design requirement and difficulty are as follows：
(1) alloy state of WYY1237 section bars is 6061FT6, when squeeze wood needs Jing precision water, mist, air quenching fiery and artificial
Effect is made, it is desirable to which the size of section bar and the accuracy of form and position reach superelevation essence level level, and with good mechanical property, wear-resisting, resistance to
The Proper Match of the combination property such as erosion, solderable, but existing mold can not reach such effect.
(2) WYY1237 section bars belong to flat wide thin-wall section, are characterized in being susceptible to serious Wall-Thickness Difference and interplanar
Gap, wall thickness dimension is inadequate because charge is not enough for section bar both ends of the surface, and the width of WYY1237 section bars, thickness rate value are up to
And existing plane mould does not reach the such section bar technical requirements of extruding.
(3) WYY1237 section bars contour dimension is big, it is necessary to the large-size extruder production more than 7000 tons, recipient diameter
For φ 418mm, section bar width almost with recipient equal diameters, existing mold cannot ensure section bar shaping and width accuracy and flat
Face gap, it is impossible to realize mass production.
(4) two supporting legs of WYY1237 section bars with wallboard angle areForm and position tolerance value has been higher than GB/T
The high-precision level regulations of 6892-2006, in order to ensure template is smoothly loaded and unloaded and overall glacing flatness, need to calculate repeatedly and budget metals
The distribution of flow just can guarantee that angle precision, manufacture and design difficulty so as to increased mould.
The content of the invention
An object of the present invention is to overcome the mould in prior art can not height of the batch flakiness ratio more than more than 100
The deficiency of difficulty section bar, there is provided it is a kind of for alloy state for 6061FT6 Large Flat width thin-wall section mould structure, the mould
Tool can realize the production in enormous quantities of section bar, low production cost, and can improve the quality of flat wide thin-wall section.
The second object of the present invention be to provide for it is a kind of for alloy state for 6061FT6 Large Flat width thin-wall section
Mould manufacturing method, the manufacture method can efficiently produce what high intensity, high tenacity, high accuracy and surface roughness were supported
The flat wide thin-wall section mould of high-quality, and the mold use life-span can be improved.
An object of the present invention can be achieved through the following technical solutions：
It is a kind of for alloy state for 6061FT6 Large Flat width thin-wall section mould structure, it is characterised in that：Mould
Spreaded using segmentation, diffluence combination die, it is described spread, diffluence combination die is made up of upper die and lower die, in the middle part of the upper mould arrange
Two suspension bridges, the width 7mm of suspension bridge form three tap holes, and arrangement and the profile shapes geometric similarity of tap hole, metal are flowed through
The metal stream similar to profile shapes is become by circular ingot gradually during tap hole, rationally the distribution of control metal and regulation
Flow rate of metal；The tap hole of the both sides is outwards spreaded into two-stage, and the angle that two-stage is spreaded is respectively 25 °, 5 °, and both sides are spreaded
Amount is respectively 40mm, to increase metal flow and pressure at nib, is easy to filling；The bonding container depth of the lower mould is
40mm, so that flowing metal has sufficiently high hydrostatic pressure in seam room.
An object of the present invention can also be achieved through the following technical solutions：
The further scheme of the present invention：The nib front end of the lower mould arranges metal water conservancy diversion guide groove, on metal water conservancy diversion guide groove
Metal drainage guide pin bushing is provided with, the first minor metal distribution is carried out by profile shapes, improve the forming effect of section bar.
The further scheme of the present invention：The lower mould is additionally provided with four bridge piers, and each two bridge pier constitutes one group of bridge pier, per group
Bridge pier supports a suspension bridge of upper mould, with budget metals flow and the bulk strength of raising mould.
The further scheme of the present invention：Split ratio K of the tap hole of the upper mouldPoint=13.
The further scheme of the present invention：The metal of the upper mould enters sinking 20mm at face, balanced metal flow can reduce
Extruding force.
The further scheme of the present invention：The bonding container is using different in nature shape.
The second object of the present invention can be achieved through the following technical solutions：
It is a kind of for alloy state for 6061FT6 Large Flat width thin-wall section mould manufacturing method, it is characterised in that：
The material selection 4Cr5MoSiV1 hot die steels of mould；
The blank of mould makes：Module is adopted into electroslag remelting steel billet, forging, annealing is sequentially passed through, is obtained hardness and reach
The module of HB229；
Mould manufactures and designs：Using CAD/CAM/CAE fully automatic working methods, mould is guaranteed by setting up threedimensional model
Each parameter, design the mould structure of Large Flat width thin-wall section；
The heat treatment of mould：Mould quenches through 1035 DEG C of high temperature, is then tempered through 2 times, reaches die hardness value
48～49HRC；
Die surface strengthening process：Using the process of two-stage gas nitriding technique, it is ensured that die surface hardness number exists
HV950-1150,100～160 μm of nitride thickness improve die life.
The further scheme of the present invention：The mould manufactures and designs, it then follows law of metal flow when aluminium alloy extruded, closes
Reason distribution amount of metal and coutroi velocity, reduce crush resistance and equilibrium velocity as far as possible.
The further scheme of the present invention：1035 DEG C of high temperature quenchings of the die ＆ mold treatment Jing.
Beneficial effects of the present invention：
1st, mould structure of the invention is simple, reasonable, and the segmentation constituted using upper die and lower die is spreaded, diffluence combination die,
Two suspension bridges are set in the middle part of upper mould, and two suspension bridges are divided into three tap holes, are made commonly to spread mould and is become shunting and spread mould, shunted
Hole arrangement is similar to profile shapes, and metal is flowed through during spreading tap hole and gradually become and profile shapes phase by circular ingot
As metal stream, rationally control metal distribution and with have adjusted flow rate of metal；The tap hole of both sides is outwards spreaded into two-stage, is led to
Cross two-stage and spread the metal flow and pressure increased at the nib of two ends, be easy to filling；The bonding container depth of lower mould is 40mm, from
And make flowing metal that there is in seam room sufficiently high hydrostatic pressure, it is ensured that the quality of seam when section bar is processed.The mould
Tool improves the quality of flat wide thin-wall section, reduces the production cost of the section bar.
2nd, for the intensity of correspondence mould, the present invention by arrange on lower mould four bridge piers be used to supporting the suspension bridge of upper mould with
Budget metals flow；Metal is entered into charge level sinking 20mm, is made metal flow through route and is shortened, so as to reduce extruding force, improve mould
The bulk strength of tool, makes the mold use life-span bring up to 2-3 times, realizes the batch production of flat wide thin-wall section.
3rd, by arranging metal water conservancy diversion guide groove in the nib front end of lower mould, metal water conservancy diversion guide groove is provided with metal and draws the present invention
Conductance set, spreads tap hole into the first order by profile shapes and enters row metal distribution, spread tap hole subsequently into the second level and enter
The second minor metal of row distributes, and improves the forming effect of section bar.
4th, the manufacture processing method of inventive die, due to having selected high-quality mold materials, design special construction mould,
Manufacturing process rationally, be heat-treated and be surface-treated advanced, not only ensure that shaping and size, the accuracy of form and position and the surface matter of product
Amount and welding quality, improve die surface hardness number, so that the mold use life-span improves.
5th, 2 die trials of the mould Jing of the flat wide thin-wall section are just qualified, and the amount of repairing a die is all less every time, reduce extruding and produce
The non-cutting time of journey.There is good mechanical property, wear-resisting, anti-corrosion, solderable flat wide thin-walled using the product of the mould production
Section bar, dimensional accuracy and the accuracy of form and position it is more stable, the tissue and performance of product is more preferable, it is ensured that the section bar shapes and overall width
The angular accuracy of precision and plane clearance and supporting leg and wallboard angle, can meet the industrialization of green building structure, distributed material, big
The requirement of batch production.
Description of the drawings
Fig. 1 be it is a kind of for alloy state for 6061FT6 Large Flat width thin-wall section structural representation.
Fig. 2 is the structural representation of upper mould in the specific embodiment of the invention 1.
Fig. 3 is the sectional view of B-B in Fig. 2.
Fig. 4 is the structural representation of lower mould in the specific embodiment of the invention 1.
Specific embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings.
Specific embodiment 1：
As shown in Figure 2, Figure 3 and Figure 4 it is a kind of for alloy state for 6061FT6 Large Flat width thin-wall section mould
Structure, mould is spreaded using segmentation, diffluence combination die, it is described spread, diffluence combination die is made up of upper mould 1 and lower mould 2, it is described on
It is provided with two suspension bridge 1-1, the width 7mm of suspension bridge 1-1 in the middle part of mould 1, the suspension bridge 1-1 is that shunting divides in existing mold field
Stream bridge, forms three tap hole 1-2, split ratio K of the tap hole 1-2 of upper mouldPointThe arrangement of=13, tap hole 1-2 and section bar shape
Shape geometric similarity, metal gradually become the metal stream similar to profile shapes by circular ingot during flowing through tap hole 1-2,
Rationally control metal distribution and have adjusted flow rate of metal.The tap hole 1-1 of both sides is outwards spreaded into two-stage, the angle that two-stage is spreaded
Degree is respectively 25 °, 5 °, and the absolute spread of both sides is respectively 40mm, to increase metal flow and pressure at nib 2-2, is easy to fill out
Fill.Metal at two suspension bridge 1-1 of the upper mould 1 enters sinking 20mm at charge level 1-3, balanced metal flow can reduce extruding
Power.
The bonding container 2-3 depth of the lower mould 2 is 40mm, and the bonding container 2-3 adopts different in nature shape, so that float
Category has sufficiently high hydrostatic pressure in bonding container 2-3.The nib 2-2 front ends of the lower mould 2 arrange metal water conservancy diversion guide groove, institute
State metal water conservancy diversion guide groove and be provided with metal drainage guide pin bushing 2-1, carry out the first minor metal distribution by profile shapes, improve section bar into
Shape effect.Lower mould 2 is additionally provided with four bridge piers, and each two bridge pier constitutes one group of bridge pier, and every group of bridge pier supports a suspension bridge of upper mould 1
1-1, with budget metals flow and the bulk strength of raising mould.On this, mould 1 and lower mould 2 also have its of existing upper die and lower die
His basic structural feature, because same as the prior art therefore here is omitted.
It is a kind of for alloy state for 6061FT6 Large Flat width thin-wall section mould manufacturing method,
The material selection high-quality 4Cr5MoSiV1 hot die steel of mould；
The blank of mould makes：Module is adopted into electroslag remelting steel billet, forging, annealing is sequentially passed through, is obtained hardness and reach
The module of HB229；
Mould manufactures and designs：When extrusion die is manufactured and designed, metal flow when must follow strictly aluminium alloy extruded
Rule, design unique construction mould reasonable distribution amount of metal and coutroi velocity, reduce crush resistance and equilibrium velocity as far as possible；Using
CAD/CAM/CAE fully automatic working methods realize full-automatic production, and each parameter of mould is guaranteed by setting up threedimensional model, if
Count out the mould structure of Large Flat width thin-wall section；Using domestic and international state-of-the-art equipments machining die, numerically controlled lathe, numerical control mill
Bed, CNC machining centers, numerically controlled discharge machine, numerical controlled engraving and milling device, low speed wire cutting machine etc. modernize lathe, in Mold Making
Overall process in realized CAD/CAM/CAE full-automatic processings, can ensure that mould crudy；
The heat treatment of mould：Mould quenches through 1035 DEG C of high temperature, is then tempered through 2 times, reaches die hardness value
48～49HRC；
Die surface strengthening process：Using the process of two-stage gas nitriding technique, it is ensured that die surface hardness number exists
HV950-1150,100～160 μm of nitride thickness improve die life.
Also include other basic steps of existing mold processing in this die processing method, the step of processing because of existing mold
Belong to prior art, therefore here is omitted.
The mould is used to manufacture WY1237 Large Flat width thin-wall sections, and the section bar has wall thickness different at three, respectively table
It is shown as section bar wall thickness1, section bar wall thickness2, section bar wall thickness3, extrusion ratio λ of the mould, metal become degree ε, metal shunt and compare KPoint, weldering
Close room depth hWelderingDeng each design parameter value through strict calculating, value all meets aluminium alloy extruded flat wide thin-walled material
Technical requirements, with this, it is ensured that the quality of extruded product.
The Design of Dies of the flat wide thin-wall sections of the WY1237 is according to parameter die design schemes parameter such as table as shown in table 1
2, the die size and technical requirements as shown in table 3, made by mould product parameters as shown in table 4, mould Jing die trials twice
Detection statistics afterwards are as shown in table 5.
It is material that high-quality 4Cr5MoSiV1 hot die steel has been selected due to the mould of the flat wide thin-wall sections of WY1237, and in fact
Advanced heat treating regime is applied, has made die hardness value reach 48～49HRC through high temperature quenching and 2 tempering, to mould table
Face carries out intensive treatment, improves die surface hardness number；Overall process all adopts CAD/CAM/CAE fully-automatic productions, by adopting
With fully automatic working method, the machining accuracy of mould is improve, it is ensured that the mechanical property of extruded product.All have per mold
Very high workmanship, profile extrusion factory follow strictly mould land use reform, therefore, just qualified, the amount of repairing a die of the mould die trial 2 times
Smaller, service life is higher, has reached the target that project improves 2-3 times.
Using the operation principle of the flat wide thin-wall section moulds of mould processing WY1237 of the present invention：Extruded using φ 418mm
Cylinder, in the presence of the extruding force of recipient, circle ingot casting by the shunting of tap hole, spread, gradually become and flat wide thin wall type
The shape of material is similar, and the circumscribed circle diameter of bonding container reaches 410mm, and bonding container depth takes 40mm, it is sufficient to make flowing metal in weldering
Close room and form high hydrostatic pressure, it is ensured that the welding quality of tubing.Metal enter sinking 20mm at face not only ensure that mechanical property but also
Welding quality can be improved, and spreaded setting metal water conservancy diversion guide groove before nib, the first minor metal distribution is carried out by profile shapes, improve
Production efficiency and finished product rate, reduce production cost.
Table 1：The Design of Dies of WY1237 section bars is according to parameter
Table 2：The die design schemes parameter of WYY1237 section bars
Table 3：The Design of Dies size of WYY1237 section bars and technical requirements
Table 4：The mould finishing die detection record of WYY1237 section bars
Table 5：Profile size detection record of the mould of WYY1237 section bars Jing after the 1st, 2 die trials
Specific embodiment 2：
The characteristics of the present embodiment is：In the manufacture method of mould, the mould quenches through 1000 DEG C of high temperature, other features
It is identical with specific embodiment 1.
Specific embodiment 3：
The characteristics of the present embodiment is：In the manufacture method of mould, the mould quenches through 1035 DEG C of high temperature, other features
It is identical with specific embodiment 1.
Claims (2)
1. it is a kind of for alloy state for 6061FT6 Large Flat width thin-wall section mould structure, it is characterised in that：The mould
Tool spreaded using segmentation, diffluence combination die, it is described spread, diffluence combination die is made up of upper mould (1) and lower mould (2), the upper mould
(1) two suspension bridges (1-1) are set in the middle part of, and the width 7mm of suspension bridge (1-1) is divided into three tap holes (1-2), tap hole (1-2)
Arrangement and profile shapes geometric similarity, metal are gradually become and section bar shape by circular ingot during flowing through tap hole (1-2)
The similar metal stream of shape, rationally control metal distribution and regulation flow rate of metal；The tap hole (1-1) is outwards spreaded into two-stage,
The angle that two-stage is spreaded is respectively 25 °, 5 °, and the absolute spread of both sides is respectively 40mm, to increase the metal flow at nib (2-2) place
And pressure, it is easy to filling；Bonding container (2-3) depth of the lower mould (2) is 40mm, so that flowing metal is in bonding container (2-
3) nib (2-2) front end in sufficiently high hydrostatic pressure, the lower mould (2) arranges metal water conservancy diversion guide groove, the metal
Water conservancy diversion guide groove is provided with metal drainage guide pin bushing (2-1), carries out the first minor metal distribution by profile shapes, improves the shaping effect of section bar
Really, the lower mould (2) is additionally provided with four bridge piers, and each two bridge pier constitutes one group of bridge pier, and every group of bridge pier supports of mould (1)
Suspension bridge (1-1), with budget metals flow and the bulk strength of raising mould, the split ratio of the tap hole (1-2) of the upper mould (1)
KPoint=13, the metal of the upper mould (1) enters charge level (1-3) place's sinking 20mm, balanced metal flow can reduce extruding force.
2. a kind of mould for alloy state for the Large Flat width thin-wall section of 6061FT6 according to claim 1 is tied
Structure, it is characterised in that：The bonding container (2-3) is using different in nature shape.
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| CN201310432958.3A CN103599955B (en) | 2013-09-22 | 2013-09-22 | It is a kind of for alloy state for 6061FT6 Large Flat width thin-wall section mould structure |
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| CN201310432958.3A CN103599955B (en) | 2013-09-22 | 2013-09-22 | It is a kind of for alloy state for 6061FT6 Large Flat width thin-wall section mould structure |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105251800B (en) * | 2015-11-27 | 2017-09-01 | 浙江中质合金材料有限公司 | A kind of processing method of the double screw bar extruding moulds of hard alloy |
| CN109013737B (en) * | 2018-10-16 | 2024-05-31 | 辽宁忠旺集团有限公司 | Extrusion die of rail car body skirtboard large-width-ratio thin-wall section bar |
| CN112210682A (en) * | 2020-10-09 | 2021-01-12 | 美图（福建）铝业有限公司 | Manufacturing method and die of industrial ultra-high aluminum alloy profile with width-thickness ratio |
| CN112322879A (en) * | 2020-10-09 | 2021-02-05 | 美图（福建）铝业有限公司 | Manufacturing method and die for high-strength large-section aluminum alloy template profile |
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