CN110038914A - Round tube hot-extrusion mold and tube and pipe of aluminium alloy - Google Patents
Round tube hot-extrusion mold and tube and pipe of aluminium alloy Download PDFInfo
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- CN110038914A CN110038914A CN201910462998.XA CN201910462998A CN110038914A CN 110038914 A CN110038914 A CN 110038914A CN 201910462998 A CN201910462998 A CN 201910462998A CN 110038914 A CN110038914 A CN 110038914A
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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
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Abstract
This application involves round tube hot-extrusion mold and tubes and pipe of aluminium alloy, wherein round tube hot-extrusion mold includes the punch-pin and cavity plate to match；Punch-pin offers diffluence pass between die body and shunt bridge, and punch-pin choked flow platform and shunt bridge are all connected to die body, and bridge pier chamfering is formed between shunt bridge and die body；Cavity plate forms tapered slope surface between work belt and cavity plate choked flow platform；Under molding state, mating die body is formed with large radius bowl-type bonding container between cavity plate choked flow platform and die wall portion；Taper second level bonding container is collectively formed between punch-pin choked flow platform, cavity plate choked flow platform and taper slope surface.Obtain metal soldering by increasing frictional force closer, thickening mould does not ensure that mould strength and bonding container depth, on the one hand board pressure is increased or using dedicated extruder without additional, on the other hand without the mold of blocked up design, another further aspect does not need shunt bridge to be made into asymmetrically shape, so that it may obtain the technical effect of excellent elimination round tube welding line.
Description
Technical field
This application involves round tube manufacture fields, more particularly to round tube hot-extrusion mold and tube and pipe of aluminium alloy.
Background technique
Common aluminum alloy round tube hot-extrusion die is cylinder, is divided into punch-pin (also known as upper mold) and cavity plate (under also known as
Mould)；Punch-pin and cavity plate use after being combined by screw, pin, seam allowance etc., and punch-pin has tap hole, shunt bridge, foreman；It is former
Material enters from the tap hole of punch-pin, and cavity plate has bonding container, work belt, rear empty knife etc..Raw material is by the shunt bridge of tap hole one
Money paid for shares category has arrived bonding container after being divided into multiply metal, is suppressing the soldering in bonding container of lower metal, then passes through foreman and work
Mold is flowed out after band forming, forms target circle pipe size.
Present people are higher and higher to the appearance requirement of alloy product, and having welding line in many product appearances is not
Allow to be also not received, wherein welding line refers to that product finishes apparent obvious lines after surface treatment, is not have
The concealed wire of feel.The characteristics of hollow hot-extrusion mold is that one metal is divided into after multiply metal to exist again by the shunt bridge of mold
Then process that bonding container soldering squeezes out after work belt shapes, so having the place of bridge location just necessarily has apparent soldering
Line, since round tube stashes unlike square tube can be placed on welding line on the position of angle, so the welding line eliminated on round tube becomes
The thicker round tube welding line of problem in the industry, especially wall thickness is more obvious；This is because the pressure of thicker wanted soldering is more inadequate,
Cause soldering effect poorer.
The method for eliminating round tube welding line in industry at present includes: to increase board pressure, is changed if 800 tons of extruders are not all right
With 1500 tons of extruders, but cost so just improves very much；Or bonding container is deepened, thus intensified pressure, but mould
Tool will thicken much and effect is unobvious, still remains more significant welding line；Or shunt bridge is made into asymmetric
Shape allows metal to rotate in bonding container, and to eliminate welding line as far as possible, but this mode is unstable, discharging it is possible that
The problems such as distortion, oval, tolerance difficult to govern control, and it is also possible that welding line occur；As long as that is, traditional mode of production mode using
The design of shunt bridge produces round tube, generates welding line with being just difficult to avoid that.
In addition, be the extruder using dedicated extruded seamless pipe there are also a kind of mode, but it is on the one hand at high cost, it is another
Aspect performance is single, only production round tube.
Summary of the invention
Based on this, it is necessary to provide a kind of round tube hot-extrusion mold and tube and pipe of aluminium alloy.
A kind of round tube hot-extrusion mold comprising the punch-pin and cavity plate to match；The punch-pin is equipped with die body, foreman, convex
Mould choked flow platform and shunt bridge, and the punch-pin offers diffluence pass, the punch-pin resistance between the die body and the shunt bridge
Stream platform and shunt bridge are all connected to the die body, and the foreman is connected to the punch-pin choked flow platform, the shunt bridge and the mould
Bridge pier chamfering is formed between body；The cavity plate is equipped with work belt, cavity plate choked flow platform and die wall portion, and the cavity plate is in the work
Make to form tapered slope surface between band and the cavity plate choked flow platform, is formed with and holds between the cavity plate choked flow platform and the die wall portion
Meet area；Under molding state, the die body is cooperated to be formed with large radius bowl-type between the cavity plate choked flow platform and the die wall portion
Bonding container；And the work belt is arranged adjacent to the foreman and exists therebetween the gap for the mould heart for being connected to the cavity plate, it is described convex
Taper second level bonding container, the taper second level are collectively formed between mould choked flow platform, the cavity plate choked flow platform and the taper slope surface
Bonding container is connected with the large radius bowl-type bonding container.
Above-mentioned round tube hot-extrusion mold, by the punch-pin and cavity die structure of ingehious design, realizing increasing frictional force makes gold
Belong to soldering and obtain closer, while can guarantee mould strength and bonding container depth in the case where not thickening mould, to produce
It eliminates the welding line i.e. round tube without obvious welding line and metal flow is advantageously reduced using the design of large radius bowl-type bonding container
Dead zone, force metal to rapidly flow toward center, increase frictional force, while reinforcing the intensity of cavity plate, be unlikely to deform cavity plate；In this way
On the one hand it increases board pressure without additional or uses dedicated extruder, on the other hand without the mold of blocked up design,
Another further aspect does not need shunt bridge to be made into asymmetrically shape, so that it may using the design of shunt bridge, obtain excellent elimination
The technical effect of round tube welding line.
The straight setting of the shunt bridge in one of the embodiments,.
The shunt bridge constriction setting in one of the embodiments,.
The shunting bridge pier of the shunt bridge increases setting in one of the embodiments,.
The punch-pin is additionally provided with the molding position for connecting the die body and shoulders, the conjunction in one of the embodiments,
Mould position and the shoulders are located at the two sides of the die body, and the punch-pin choked flow platform is connected to the molding position.
The punch-pin choked flow platform is in truncated cone-shaped and cylindrical combination in one of the embodiments, and the punch-pin hinders
The maximum gauge for flowing platform is greater than the internal diameter of the work belt.
The taper second level bonding container deepens setting in one of the embodiments,.
The bottom of the large radius bowl-type bonding container has arc section or linear section in one of the embodiments,
And the side of the large radius bowl-type bonding container has arc section.
The projecting height of the projecting height of the punch-pin choked flow platform, the cavity plate choked flow platform in one of the embodiments,
And the width of the large radius bowl-type bonding container is arranged all in accordance with target round tube, and the projecting height matching of the cavity plate choked flow platform
The width of the large radius bowl-type bonding container is arranged；
The die body, the foreman, the punch-pin choked flow platform and the shunt bridge are wholely set, the work belt, described
Cavity plate choked flow platform and the die wall portion are wholely set；
The quantity of the shunt bridge is multiple, and each shunt bridge is integrally centrosymmetric setting；
The straight setting of shunting bridge pier of the shunt bridge；
The punch-pin choked flow platform is sequentially with breathing space, shrinking zone and transition region, and the punch-pin choked flow platform has protrusion
Face, contraction front and transition face, the foreman are connected to the transition region；
The cavity plate offers the mould heart；
The top of the cavity plate choked flow platform is flat shape；
The bottom of the large radius bowl-type bonding container is in Surface of Sphere, ellipsoid, cylindrical side or plane；
Between the foreman, the punch-pin choked flow platform, the cavity plate choked flow platform, the work belt and the taper slope surface altogether
With the formation taper second level bonding container；
The slope angle of the taper slope surface is more than or equal to 78 degree.
A kind of tube and pipe of aluminium alloy comprising any one round tube hot-extrusion mold processing is made.
Detailed description of the invention
Fig. 1 is the punch structure schematic diagram of one embodiment of the application round tube hot-extrusion mold.
Fig. 2 is the schematic diagram of another direction of embodiment illustrated in fig. 1.
Fig. 3 is the schematic diagram of another direction of embodiment illustrated in fig. 1.
Fig. 4 is the schematic diagram of another direction of embodiment illustrated in fig. 3.
Fig. 5 is the cavity die structure schematic diagram to match with embodiment illustrated in fig. 1.
Fig. 6 is the schematic diagram of another direction of embodiment illustrated in fig. 5.
Fig. 7 is the molding perspective diagram of the punch-pin of embodiment illustrated in fig. 1 and the cavity plate of embodiment illustrated in fig. 5.
Fig. 8 is the partial cutaway view schematic of another embodiment of the application round tube hot-extrusion mold.
Fig. 9 is enlarged diagram at the A of embodiment illustrated in fig. 8.
Figure 10 is the schematic cross-sectional view of one embodiment of the application tube and pipe of aluminium alloy.
Specific embodiment
In order to make the above objects, features, and advantages of the present application more apparent, with reference to the accompanying drawing to the application
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this Shen
Please.But the application can be implemented with being much different from other way described herein, those skilled in the art can be not
Similar improvement is done in the case where violating the application intension, therefore the application is not limited by the specific embodiments disclosed below.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element
On one element or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be with
It is directly to another element or may be simultaneously present centering elements.Term as used herein " vertically ", " level
", "left", "right" and similar statement for illustrative purposes only, be not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.Term " and or " used herein includes one or more
Any and all combinations of relevant listed item.
In the application one embodiment, a kind of round tube hot-extrusion mold comprising the punch-pin and cavity plate to match；It is described
Punch-pin is equipped with die body, foreman, punch-pin choked flow platform and shunt bridge, and the punch-pin opens up between the die body and the shunt bridge
There is diffluence pass, the punch-pin choked flow platform and shunt bridge are all connected to the die body, and the foreman is connected to the punch-pin choked flow platform,
Bridge pier chamfering is formed between the shunt bridge and the die body；The cavity plate is equipped with work belt, cavity plate choked flow platform and die wall portion,
And the cavity plate forms tapered slope surface between the work belt and the cavity plate choked flow platform, the cavity plate choked flow platform and described
Die wall is formed with accepting area between portion；Under molding state, cooperate the mould between the cavity plate choked flow platform and the die wall portion
Body is formed with large radius bowl-type bonding container；And the work belt is arranged adjacent to the foreman and there is the connection cavity plate therebetween
The weldering of taper second level is collectively formed in the gap of the mould heart between the punch-pin choked flow platform, the cavity plate choked flow platform and the taper slope surface
Room is closed, the taper second level bonding container is connected with the large radius bowl-type bonding container.Above-mentioned round tube hot-extrusion mold, by skilful
The punch-pin and cavity die structure of wonderful design realize and increase frictional force to obtain metal soldering closer, while can be in not thickening model
Guarantee mould strength and bonding container depth in the case where tool, to produce the round tube for eliminating welding line i.e. without obvious welding line, greatly
The design of radius bowl-type bonding container, advantageously reduces the dead zone of metal flow, and metal is forced to rapidly flow toward center, increases friction
Power, while reinforcing the intensity of cavity plate, it is unlikely to deform cavity plate；Board pressure on the one hand is increased or using dedicated without additional in this way
Extruder, on the other hand without the mold of blocked up design, another further aspect does not need shunt bridge to be made into asymmetric shape
Shape, so that it may using the design of shunt bridge, obtain the technical effect of excellent elimination round tube welding line.It should be noted that this
The round tube for applying for elimination welding line obtained by each embodiment refers to without obvious welding line round tube, and non-round dedicated extruder
In the absolute sense squeezed out without welding line, and round tube obtained by each embodiment of the application has that precision is high, circularity is good
And stable effect, it meets the requirements of the customers.
A kind of round tube hot-extrusion mold in one of the embodiments, comprising the part-structure of following embodiment is complete
Portion's structure；That is, round tube hot-extrusion mold includes some technical characteristics or all technical features below.One embodiment wherein
In, a kind of round tube hot-extrusion mold comprising the punch-pin and cavity plate to match；The punch-pin and cavity plate to match is that can close
Mould.Further, the cavity plate offers the mould heart in one of the embodiments,；I.e. a kind of round tube hot-extrusion mold comprising
The punch-pin and cavity plate to match；The punch-pin is equipped with die body, foreman, punch-pin choked flow platform and shunt bridge, and the punch-pin is in described
Diffluence pass is offered between die body and the shunt bridge, the punch-pin choked flow platform and shunt bridge are all connected to the die body, described
Foreman is connected to the punch-pin choked flow platform, and bridge pier chamfering is formed between the shunt bridge and the die body；The cavity plate opens up
There is the mould heart, the cavity plate is equipped with work belt, cavity plate choked flow platform and die wall portion, and the cavity plate is in the work belt and the cavity plate
Tapered slope surface is formed between choked flow platform；Under molding state, between the cavity plate choked flow platform and the die wall portion described in cooperation
Die body is formed with large radius bowl-type bonding container；And the work belt is arranged adjacent to the foreman, the foreman, the punch-pin choked flow
Taper second level bonding container is collectively formed between platform, the cavity plate choked flow platform, the work belt and the taper slope surface.Remaining is implemented
Example and so on.
The punch-pin is equipped with die body, foreman, punch-pin choked flow platform and shunt bridge in one of the embodiments, and described convex
Mould offers diffluence pass between the die body and the shunt bridge, and the punch-pin choked flow platform and shunt bridge are all connected to the mould
Body, the foreman are connected to the punch-pin choked flow platform, bridge pier chamfering are formed between the shunt bridge and the die body；Punch-pin resistance
Stream platform and bridge pier chamfering are the important improvement designs of each embodiment of the application, and punch-pin choked flow platform is for increasing frictional force and hindering gold
The flowing of category, not allowing metal directly to flow out from die hole influences soldering, and punch-pin choked flow platform cooperates the common realization such as cavity plate choked flow platform big
The form compartmentalized design of the two bonding containers of radius bowl-type bonding container and taper second level bonding container, does not need thickening mould
Guarantee mould strength and bonding container depth；Bridge pier chamfering is used to reinforce the intensity of shunt bridge, even the shunt bridge of design is thinned
Also it can reach the technical effect for eliminating round tube welding line.Further, the bridge pier chamfering adds in one of the embodiments,
Big setting.
The punch-pin choked flow platform is in truncated cone-shaped and cylindrical combination in one of the embodiments, and the punch-pin hinders
The maximum gauge for flowing platform is greater than the internal diameter of the work belt.Further, the punch-pin choked flow platform in one of the embodiments,
In the composition and a cylindrical combination of two truncated cone-shapeds.Such design is advantageously implemented taper second level bonding container
Gap tilt effect in the side of punch-pin side.The punch-pin is additionally provided with the molding for connecting the die body in one of the embodiments,
Position and shoulders, the molding position and the shoulders are located at the two sides of the die body, and the punch-pin choked flow platform connects
In the molding position.The shoulders assembles the punch-pin or its described die body for cooperating；The molding position is used to match and attach together
With the cavity plate.The molding position, the die body and the shoulders are wholely set in one of the embodiments,.Further
Ground, the in one of the embodiments, shoulders, the die body, the molding position, the foreman, the punch-pin choked flow platform
And the shunt bridge is wholely set.Such design produces the punch-pin and the assembly round tube hot extruding die in which can be convenient
Tool.
The quantity of the shunt bridge is multiple in one of the embodiments, and each shunt bridge is integrally in center pair
Claim setting；The quantity of the shunt bridge is two, three, four or more in one of the embodiments,.A reality wherein
It applies in example, the straight setting of shunt bridge.The shunt bridge constriction setting in one of the embodiments,.I.e. relative to tradition
The shunt bridge of punch-pin, the width constriction of the shunt bridge of the present embodiment, this is Yi Jiru premised on the setting based on bridge pier chamfering
Fruit does not have bridge pier chamfering, then the width of shunt bridge is unable to constriction.Further, described in one of the embodiments, to divide
Bridge constriction 15% to 34% is flowed to be arranged.The shunt bridge of constriction setting, can provide smaller in the case where not influencing mould strength
Soldering distance, be on the one hand conducive to simplify soldering work, be on the other hand conducive to promoted metal soldering tightness, Zai Yifang
Face is conducive to that taper second level bonding container is cooperated to realize elimination welding line.The shunting of the shunt bridge in one of the embodiments,
Bridge pier increases setting.Further, the straight setting of shunting bridge pier of the shunt bridge in one of the embodiments,.It is straight to set
Set shunt bridge pier cooperation bridge pier chamfering design, be conducive to promoted shunt bridge intensity, allow shunt bridge do it is thin do it is narrow.Into
One step, the one side for shunting bridge pier towards the cavity plate is concordantly arranged in one of the embodiments, that is, forms one and put down
Face, in trial-production test, the shunting bridge pier of flat shape can cooperate bridge pier to fall under the premise of ensuring the intensity of shunt bridge
Realize thinner shunt bridge in angle.
The punch-pin choked flow platform is sequentially with breathing space, shrinking zone and transition region in one of the embodiments, and described
Punch-pin choked flow platform has raised face, contraction front and transition face, and the foreman is connected to the transition region；Further, wherein
In one embodiment, the angle of the axis of the raised face and the mold less than 15 degree, and/or, the taper slope surface and institute
The angle of the axis of mold is stated less than 20 degree；Such design is conducive to cooperate the foreman, the cavity plate choked flow platform, described
Taper second level bonding container is collectively formed in work belt and the taper slope surface, and raised face and contraction front cooperate taper slope surface, jointly
The two sides taper for foring taper second level bonding container, being on the one hand conducive to, which allows bonding container to be made deeper cooperation, increases friction
Power allows soldering time of the metal in bonding container to lengthen, obtains metal soldering closer, and it is uniform to be on the other hand conducive to soldering,
Welding line is eliminated to realize jointly, cooperates certain later period surface treatment procedure such as to polish, polish, substantially on surface
It can't see a bit trace of welding line.
The cavity plate is equipped with work belt, cavity plate choked flow platform and die wall portion, and the cavity plate is in the work belt and described recessed
Tapered slope surface is formed between mould choked flow platform, is formed with accepting area between the cavity plate choked flow platform and the die wall portion；Cavity plate resistance
Stream platform and taper slope surface are also the important improvement design of each embodiment of the application, and cavity plate choked flow platform allows for hindering metal flow
It is closer that soldering time lengthening of the metal in bonding container obtains metal soldering, and by cooperation punch-pin choked flow platform, in physics shape
Bonding container is formd in state the large radius bowl-type bonding container communicated and taper second level bonding container, further cooperates taper slope surface,
Be conducive to protect foreman, foreman is avoided to cause to occur to swing to influence concentricity due to the design of taper second level bonding container
Primary evaluation index concentricity.Accepting area cooperates large radius bowl-type bonding container and is arranged.Institute in one of the embodiments,
The slope angle for stating taper slope surface is more than or equal to 78 degree.The slope angle of the taper slope surface is 78 degree, 79 in one of the embodiments,
Degree, 80 degree, 81 degree, 82 degree or 83 degree etc..Taper slope surface designs in order to cooperate large radius bowl-type bonding container, if do not had
Large radius bowl-type bonding container, then for cooperatively forming the taper slope surface absolutely not meaning of taper second level bonding container, based on more than half
Under the premise of diameter bowl-type bonding container and cavity plate choked flow platform are existing, the flowing of metal is subject to certain restrictions, and speed reduces, and is conducive to bore
Spend the second level soldering of second level bonding container, and the taper second level bonding container that taper slope surface is realized has certain contractive effect, one
The distance that aspect reduces metal soldering allows soldering to become easy, and on the other hand can also promote extruding soldering without increasing board pressure
Effect, so that metal soldering is more closely, welding line is just naturally disappeared, so as to prepare without obvious welding line
Round tube especially tube and pipe of aluminium alloy.
In one of the embodiments, under molding state, cooperate institute between the cavity plate choked flow platform and the die wall portion
It states die body and is formed with large radius bowl-type bonding container；And the work belt is arranged adjacent to the foreman and presence connection therebetween is described recessed
Taper two is collectively formed between the punch-pin choked flow platform, the cavity plate choked flow platform and the taper slope surface in the gap of the mould heart of mould
Grade bonding container, the taper second level bonding container are connected with the large radius bowl-type bonding container.Further, a reality wherein
It applies in example, between the foreman, the punch-pin choked flow platform, the cavity plate choked flow platform, the work belt and the taper slope surface altogether
Similar shape tapering second level bonding container.Alternatively, also can be replaced the punch-pin choked flow platform, the cavity plate choked flow platform in each embodiment
And taper second level bonding container is collectively formed between the taper slope surface.Here design focal point is a soldering traditional design
Room is changed to the large radius bowl-type bonding container being connected and taper second level bonding container, i.e., the design method of two bonding containers, this is right
In being made in the case where not increasing machine and mold thickness without obvious welding line round tube, traditional technology prejudice is changed, i.e.,
No welding line round tube only could be produced using the extruder of dedicated extruded seamless pipe, as long as using the design of shunt bridge
Just centainly have welding line；And using the design of large radius bowl-type bonding container, the dead zone of metal flow is advantageously reduced, is forced
Metal rapidly flows toward center, increases frictional force, while reinforcing the intensity of cavity plate, is unlikely to deform cavity plate, improves making for cavity plate
With the service life, advantageously reduces production cost and save social resources.Further, described more than half in one of the embodiments,
The bottom of diameter bowl-type bonding container is located in the cavity plate, offers on the cavity plate in one of the embodiments, described more than half
The first lateral zones, bottom zone and the second lateral zones of diameter bowl-type bonding container, first lateral zones and the cavity plate choked flow platform phase
Neighbour, second lateral zones are adjacent with the die wall portion of the cavity plate, and the bottom zone is located at first lateral zones and described the
Between two lateral zones.First lateral zones and second lateral zones all have arc section in one of the embodiments,.
The top of the cavity plate choked flow platform is the top of flat shape or the cavity plate choked flow platform in one of the embodiments,
Portion has arc section；In one of the embodiments, the bottom of the large radius bowl-type bonding container in Surface of Sphere, ellipsoid,
Cylindrical side or plane；Such design, be conducive to increase rubbing action, and hinder metal flowing, do not allow metal directly from
Die hole flows out and influences soldering, to improve soldering effect.The large radius bowl-type bonding container in one of the embodiments,
Bottom have arc section or linear section, and the side of the large radius bowl-type bonding container have arc section.It is such
Design is conducive to the dead zone that metal flow is reduced in large radius bowl-type bonding container, and metal is forced to rapidly flow toward the round tube heat
The center of extrusion die is also beneficial to increase frictional force by large radius bowl-type bonding container, simultaneously into taper second level bonding container
The intensity for reinforcing cavity plate, is unlikely to deform cavity plate.It is understood that in each embodiment, the large radius bowl-type bonding container
Large radius is for the taper second level bonding container and the foreman or die hole, is an opposite concept；And it is each
In embodiment, the large radius can be designed or adjust according to target round tube product or the cavity plate.It is described in each embodiment
Large radius bowl-type bonding container is also referred to as large radius bonding container；In each embodiment, the large radius bowl-type bonding container has two sides
For the section of arc, just as the shape of a bowl, disk or spoon.
The die body, the foreman, the punch-pin choked flow platform and the shunt bridge are integrally set in one of the embodiments,
It sets, the work belt, the cavity plate choked flow platform and the die wall portion are wholely set；Further, in one of the embodiments,
The taper second level bonding container has pentagonal section；The taper second level bonding container has five in one of the embodiments,
Side tee section, and its bottom by the foreman and the work belt to the corresponding mould heart for being positioned adjacent to the cavity plate.At it
In middle one embodiment, the taper second level bonding container deepens setting.Further, the cone in one of the embodiments,
The depth for spending second level bonding container is greater than the length of the foreman；Further, the taper second level in one of the embodiments,
Bonding container passes through the taper slope surface being oppositely arranged and the punch-pin choked flow platform is realized and deepens setting；Further, wherein
In one embodiment, the taper second level bonding container passes through the taper slope surface being oppositely arranged and the punch-pin choked flow platform, altogether
Deepen setting with cooperating the cavity plate choked flow platform to realize, such design is led under the premise of substantially not increasing die thickness
The relative length for adjusting the taper slope surface and the punch-pin choked flow platform is crossed, that is, the adjustment simultaneously of cavity plate choked flow platform is cooperated to communicate
The relative position of large radius bowl-type bonding container and taper second level bonding container realizes that taper second level bonding container deepens setting, on the one hand
It is advantageously ensured that bonding container depth, to increase frictional force, to obtain metal soldering closer, so that welding line is more concealed,
On the other hand the intensity for avoiding influencing cavity plate, guarantees mould strength under the premise of not thickening mould.
The projecting height of the projecting height of the punch-pin choked flow platform, the cavity plate choked flow platform in one of the embodiments,
And the width of the large radius bowl-type bonding container is arranged all in accordance with target round tube, and the projecting height matching of the cavity plate choked flow platform
The width of the large radius bowl-type bonding container is arranged；Such design is conducive to cooperation and realizes the various types of target circles of production
Pipe especially tube and pipe of aluminium alloy.The projecting height of the punch-pin choked flow platform, the cavity plate choked flow platform in one of the embodiments,
Projecting height and the width of the large radius bowl-type bonding container be arranged all in accordance with target round tube, and the cavity plate choked flow platform is prominent
The width setting of large radius bowl-type bonding container described in matched out；The die body, the foreman, the punch-pin choked flow platform and institute
It states shunt bridge to be wholely set, the work belt, the cavity plate choked flow platform and the die wall portion are wholely set；The number of the shunt bridge
Amount is multiple, and each shunt bridge is integrally centrosymmetric setting；The straight setting of shunting bridge pier of the shunt bridge；It is described convex
Mould choked flow platform is sequentially with breathing space, shrinking zone and transition region, and the punch-pin choked flow platform has raised face, contraction front and transition
Face, the foreman are connected to the transition region；The cavity plate offers the mould heart；The top of the cavity plate choked flow platform is planar shaped
Shape；The bottom of the large radius bowl-type bonding container is in Surface of Sphere, ellipsoid, cylindrical side or plane；The slope of the taper slope surface
Angle is more than or equal to 78 degree.Such design avoids the following defect of traditional approach: increasing board pressure, then cost improves；Mould
Tool thickeies bonding container intensification, and then cost improves and effect is unobvious；The swing bridge unstable and size that then discharges is done to be difficult to guarantee；Specially
Extruder then cost improve and poor universality.By the punch-pin choked flow for increasing punch-pin on conventional round tube hot-extrusion mold
Platform, straight shunting bridge pier, bridge pier chamfering, the cavity plate choked flow platform of cavity plate, form large radius bowl-type bonding container and taper second level
Bonding container, shunt bridge can be made thinner to lower shunt influence, allow soldering time of the metal in bonding container to lengthen, Neng Gouti
Rise soldering effect, obtain metal soldering closer, the welding line of round tube obtained especially tube and pipe of aluminium alloy it is extremely faint or even
In completely it is unobvious, cooperate certain later period surface treatment procedure, be substantially not visible welding line；And round tube also have precision it is high,
The good and stable advantage of circularity.
In one of the embodiments, round tube hot-extrusion mold punch-pin as shown in Figure 1, referring to Figure 2 together, Fig. 3 and
Fig. 4, the punch-pin are equipped with die body 140, foreman 110, punch-pin choked flow platform 120 and shunt bridge 102,100 company of being additionally provided with of punch-pin
Molding position 130 and the shoulders 150 of the die body 140 are connect, the molding position 130 and the shoulders 150 are located at described
The two sides of die body 140, and the punch-pin choked flow platform 120 is connected to the molding position 130.The quantity of the shunt bridge 102 is more
It is a, and the whole setting that is centrosymmetric of each shunt bridge 102；The shoulders 150, the die body 140, the foreman 110,
The molding position 130, the punch-pin choked flow platform 120 and the shunt bridge 102 are wholely set, and the punch-pin 100 is in the die body
Diffluence pass 101 is offered between 140 and the shunt bridge 102, the punch-pin choked flow platform 120 and shunt bridge 102 are all connected to institute
Die body 140 is stated, the foreman 110 is connected to the punch-pin choked flow platform 120, shape between the shunt bridge 102 and the die body 140
At there is bridge pier chamfering 103；The shunting bridge pier 105 of the shunt bridge 102 increases setting, and shunts the straight setting of bridge pier 105, at it
In middle one embodiment, the bridge pier for being connected to the diffluence pass 101 is also formed between the shunt bridge 102 and the die body 140
Curved area 104.
The cavity plate to match with above-mentioned punch-pin is as shown in Figures 5 and 6, be equipped with work belt 210, cavity plate choked flow platform 230 and
Die wall portion 260, the work belt 210, the cavity plate choked flow platform 230 and the die wall portion 260 are wholely set；And the cavity plate
200 form tapered slope surface 220 between the work belt 210 and the cavity plate choked flow platform 230；The cavity plate choked flow platform 230
And accepting area 250 is formed between the die wall portion 260；The top of the cavity plate choked flow platform 230 is flat shape；The cavity plate
200 offer the mould heart 299；The first lateral zones 241, the bottom of the large radius bowl-type bonding container 240 are offered on the cavity plate
Area 242 and the second lateral zones 243, first lateral zones 241 are adjacent with the cavity plate choked flow platform 230, second lateral zones
243 is adjacent with the die wall portion 260 of the cavity plate, and the bottom zone 242 is located at first lateral zones 241 and second side
Between area 243.
Referring to Figure 7 together, Fig. 8 and Fig. 9, under molding state, the punch-pin 100 and cavity plate 200 of round tube hot-extrusion mold
Match, the die body 140 is cooperated to be formed with the weldering of large radius bowl-type between the cavity plate choked flow platform 230 and the die wall portion 260
Close room 240；And the work belt 210 is arranged adjacent to the foreman 110 and there is the mould heart 299 for being connected to the cavity plate 200 therebetween
Gap, taper two is collectively formed between the punch-pin choked flow platform 120, the cavity plate choked flow platform 230 and the taper slope surface 220
Grade bonding container 290, the taper second level bonding container 290 are connected with the large radius bowl-type bonding container 240.Or the foreman
110, taper second level soldering is collectively formed between the punch-pin choked flow platform 120, the work belt 210 and the taper slope surface 220
Room 290.The punch-pin choked flow platform 120 has raised face 123, contraction front 122 and transition face 121.The punch-pin choked flow platform 120 is in
The combination of truncated cone-shaped and cylinder, and the maximum gauge of the punch-pin choked flow platform 120 is greater than the internal diameter of the work belt 210, institute
The bottom for stating large radius bowl-type bonding container 240 has linear section, and the side of the large radius bowl-type bonding container 240 is i.e. described
First lateral zones 241 have arc section with second lateral zones 243.
It is as shown in Figure 10 using a kind of tube and pipe of aluminium alloy made from above-mentioned round tube hot-extrusion mold, one embodiment wherein
In, which is 17 (+0, -0.2) mm, and outer diameter is 32.5 (+0.2, -0) mm, with a thickness of 7.75mm, Zhou Changwei
155.50mm sectional area 602.60mm2, theoretical weight is 1.66 ± 0.05kg/m.Above-mentioned round tube hot-extrusion mold can be
Make that precision is high, circularity is good in the case where not increasing machine and mold thickness and stable without obvious welding line round tube, by
The punch-pin of mold increases punch-pin choked flow platform, is conducive to increase frictional force and the flowing of metal is hindered not allow metal directly from die hole
Outflow influences soldering, while playing the role of protecting foreman that foreman is not allowed to swing influence concentricity because bonding container deepens.It is also logical
The bridge pier that shunt bridge is increased on punch-pin and the design for increasing bridge pier chamfering are crossed, it in this way can be the case where not influencing mould strength
Lower shunt bridge to be done thin, the distance that can also reduce metal soldering allows soldering to become easy.And it is increased on the cavity plate of mold
Taper second level bonding container can make bonding container be made deeper, obtain metal soldering closer, while not influencing mould strength.By with
The combination of upper several points, round tube obtained are substantially not visible welding line after surface treatment, meet market demands.
A kind of aluminum alloy round tube hot-extrusion die in one of the embodiments, comprising round tube described in any embodiment
Hot-extrusion mold, alternatively, it is round tube hot-extrusion mold described in any embodiment.In the embodiment of a wherein concrete application
In, by taking the cavity plate of 50mm thickness as an example, the normal bonding container depth of traditional cavity plate of the thickness is about 10mm to 15mm, in this case
Necessarily lead to soldering insufficient pressure and apparent welding line occur, using the design of the various embodiments described above, taper second level bonding container
The depth that can achieve 30mm or even 40mm improves 100% to 300% compared with traditional technology, and is and large radius bowl-type
The two-stage soldering effect that bonding container matches, not only reduces metal flow rate, also increase bonding container depth, makes metal soldering
It is closer, allow for that welding line is no longer obvious or even the visible disappearance of naked eyes naturally.
A kind of tube and pipe of aluminium alloy comprising the processing of round tube hot-extrusion mold described in any embodiment is made.It is obtained in this way
Tube and pipe of aluminium alloy has the effect of that welding line is unobvious, precision is high, circularity is good and stable, without it is additional increase board pressure or
Using dedicated extruder, also without the mold of blocked up design, shunt bridge is not needed to be made into asymmetrically shape.
It should be noted that the other embodiments of the application further include, the mutually group of the technical characteristic in the various embodiments described above
Close the round tube hot-extrusion mold and tube and pipe of aluminium alloy that is formed by, can implement.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to claim therefore cannot be interpreted as.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of patent protection of the application should be determined by the appended claims.
Claims (10)
1. a kind of round tube hot-extrusion mold, which is characterized in that including the punch-pin and cavity plate to match；
The punch-pin is equipped with die body, foreman, punch-pin choked flow platform and shunt bridge, and the punch-pin is in the die body and the shunt bridge
Between offer diffluence pass, the punch-pin choked flow platform and shunt bridge are all connected to the die body, and the foreman is connected to described convex
Mould choked flow platform, is formed with bridge pier chamfering between the shunt bridge and the die body；
The cavity plate is equipped with work belt, cavity plate choked flow platform and die wall portion, and the cavity plate is hindered in the work belt and the cavity plate
Tapered slope surface is formed between stream platform, is formed with accepting area between the cavity plate choked flow platform and the die wall portion；
Under molding state, the die body is cooperated to be formed with the weldering of large radius bowl-type between the cavity plate choked flow platform and the die wall portion
Close room；And the work belt is arranged adjacent to the foreman and there is the gap for the mould heart for being connected to the cavity plate, the punch-pin therebetween
Taper second level bonding container, the taper second level weldering are collectively formed between choked flow platform, the cavity plate choked flow platform and the taper slope surface
Room is closed to be connected with the large radius bowl-type bonding container.
2. round tube hot-extrusion mold according to claim 1, which is characterized in that the straight setting of shunt bridge.
3. round tube hot-extrusion mold according to claim 2, which is characterized in that the shunt bridge constriction setting.
4. round tube hot-extrusion mold according to claim 3, which is characterized in that the shunting bridge pier increasing of the shunt bridge is set
It sets.
5. round tube hot-extrusion mold according to claim 1, which is characterized in that the punch-pin is additionally provided with the connection die body
Position and shoulders are molded, the molding position and the shoulders are located at the two sides of the die body, and the punch-pin choked flow platform
It is connected to the molding position.
6. round tube hot-extrusion mold according to claim 1, which is characterized in that the punch-pin choked flow platform is in truncated cone-shaped and cylinder
The combination of shape, and the maximum gauge of the punch-pin choked flow platform is greater than the internal diameter of the work belt.
7. round tube hot-extrusion mold according to claim 1, which is characterized in that the taper second level bonding container deepens setting.
8. round tube hot-extrusion mold according to claim 1, which is characterized in that the bottom of the large radius bowl-type bonding container has
There are arc section or linear section, and the side of the large radius bowl-type bonding container has arc section.
9. according to claim 1 to round tube hot-extrusion mold described in any one of 8, which is characterized in that the punch-pin choked flow platform
The width of projecting height, the projecting height of the cavity plate choked flow platform and the large radius bowl-type bonding container is set all in accordance with target round tube
It sets, and the projecting height of the cavity plate choked flow platform matches the width setting of the large radius bowl-type bonding container；
The die body, the foreman, the punch-pin choked flow platform and the shunt bridge are wholely set, the work belt, the cavity plate
Choked flow platform and the die wall portion are wholely set；
The quantity of the shunt bridge is multiple, and each shunt bridge is integrally centrosymmetric setting；
The straight setting of shunting bridge pier of the shunt bridge；
The punch-pin choked flow platform is sequentially with breathing space, shrinking zone and transition region, and the punch-pin choked flow platform has raised face, receives
Contracting face and transition face, the foreman are connected to the transition region；
The cavity plate offers the mould heart；
The top of the cavity plate choked flow platform is flat shape；
The bottom of the large radius bowl-type bonding container is in Surface of Sphere, ellipsoid, cylindrical side or plane；
Common shape between the foreman, the punch-pin choked flow platform, the cavity plate choked flow platform, the work belt and the taper slope surface
At the taper second level bonding container；
The slope angle of the taper slope surface is more than or equal to 78 degree.
10. a kind of tube and pipe of aluminium alloy, which is characterized in that including the round tube hot-extrusion mold as described in any one of claims 1 to 9
Processing is made.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910462998.XA CN110038914A (en) | 2019-05-30 | 2019-05-30 | Round tube hot-extrusion mold and tube and pipe of aluminium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910462998.XA CN110038914A (en) | 2019-05-30 | 2019-05-30 | Round tube hot-extrusion mold and tube and pipe of aluminium alloy |
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| CN110038914A true CN110038914A (en) | 2019-07-23 |
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| CN201910462998.XA Pending CN110038914A (en) | 2019-05-30 | 2019-05-30 | Round tube hot-extrusion mold and tube and pipe of aluminium alloy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114273451A (en) * | 2021-12-17 | 2022-04-05 | 江苏江顺精密科技集团股份有限公司 | Aluminum alloy heat-insulation strip-penetrating material extrusion die capable of avoiding shadows |
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| CN204052416U (en) * | 2014-08-06 | 2014-12-31 | 黄石市宏佳模具有限公司 | A kind of hollow cylinder extruding die for aluminum shaped material |
| CN106424186A (en) * | 2016-07-20 | 2017-02-22 | 仪征海天铝业有限公司 | Distributary combined hot-extrusion die |
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| JPH04319018A (en) * | 1991-04-17 | 1992-11-10 | Showa Alum Corp | Manufacture of extruding die |
| CN201143522Y (en) * | 2007-11-12 | 2008-11-05 | 仪征海天铝业有限公司 | Hot-extrusion mold |
| CN202984324U (en) * | 2012-11-23 | 2013-06-12 | 辽源飞跃工模具有限公司 | Thick-wall hollow aluminum profile extrusion die of mold core belt flow blocking table |
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| CN114273451A (en) * | 2021-12-17 | 2022-04-05 | 江苏江顺精密科技集团股份有限公司 | Aluminum alloy heat-insulation strip-penetrating material extrusion die capable of avoiding shadows |
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Application publication date: 20190723 |