CN209393743U - A kind of hot extrusion shaping mold of metal composite pipe - Google Patents
A kind of hot extrusion shaping mold of metal composite pipe Download PDFInfo
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- CN209393743U CN209393743U CN201822163553.5U CN201822163553U CN209393743U CN 209393743 U CN209393743 U CN 209393743U CN 201822163553 U CN201822163553 U CN 201822163553U CN 209393743 U CN209393743 U CN 209393743U
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- composite pipe
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Abstract
The utility model discloses a kind of hot extrusion shaping mold of metal composite pipe, including extrusion die, the extrusion cylinder being arranged on extrusion die and it is arranged in and squeezes drum outer wall and the heating mantle contacted with extrusion die and the pressure ram for being arranged in extrusion cylinder and being slidably connected with extrusion cylinder；It is formed with extrusion chamber between the extrusion cylinder inner wall and pressure ram, is filled with combined hollow cylinder blank material layer in the extrusion chamber；The squeezing passage being connected with extrusion chamber is offered inside extrusion die, and the squeezing passage is corresponding with the pressure ram；The process flow is short, and energy consumption is less, high production efficiency, in the production of short route, bilayer, the Multilayer metal tube of manufacture different materials cladding, to meet the needs of different operating environment；And simple production process, easily controllable, intensity, thermal conductivity and the unfailing performance of gained tubing are all effectively improved.
Description
Technical field
The utility model relates to metal pipe material processing technique fields, and in particular to a kind of hot extrusion molding of metal composite pipe
Mold.
Background technique
Multiple tube refers to that the processing method by certain makes the internal layer of metal tube, external sheath dissimilar metal, plays different
The performance advantage of alloy improves the comprehensive performance of tubing so that the ectonexine of tubing be made to be respectively provided with different property, has height
Intensity, corrosion-resistant, electromagnetic shielding and the excellent comprehensive performances such as conductive, thermally conductive, can satisfy the requirement of different operating environment.
Thus, it is increasingly being applied to the industrial circles such as aerospace, household electrical appliances manufacture, petroleum industry, electric power and electronics.With China
Economic continuous development, national industry are continuously increased the demand of composite pipe, and the performance and quality to tubing have more next
Higher requirement.In addition, energy contradiction highlights since China's environmental problem becomes increasingly conspicuous, production bimetallic on the market is compound
The product energy consumption of pipe is high, at high cost, of poor quality, environmental pollution is serious, and there is also complex procedures, the position of combination interface for some methods
Set the problem with the deficiency that thickness cannot be controlled accurately, wall unevenness is even.Green is proposed to the production technology of cladding bimetallic tube
Change, short route, energy consumption is low, lumber recovery is high etc. requires.Magnesium-based, aluminium base bilayer/multi-layered composite pipe are that one kind has excellent performance and answers
With the composite pipe having a high potential.Matrix magnesium alloy has excellent cutting performance, and neutrality, alkaline environment corrosion resistance are strong, anti-impact
The advantages that hitting property is strong, and specific strength is big.The advantages that aluminum matrix alloy is conductive good, heat transfer is fast, light-weight, easy to form.
Currently, the method for production composite bimetal pipe can be divided mainly into mechanical compound and compound two class of metallurgy, these two types system
Make technique, have the defects that it is different degrees of, it is specific as follows:
Mechanical composite tube is that lining pipe is penetrated to base's pipe, two pipe Coaxial Superimposeds, then for example hydraulic by certain technique,
Spinning the methods of fires internal lining pipe and is plastically deformed, and base's pipe does not occur or is slightly plastically deformed, so that the two be realized
Therefore mechanical bond in the case where high temperature and long-time service, easily occurs segregation phenomenon, bimetal tube is caused to lose between tube layer
Effect, and this method is confined to the compound bimetal tube of production internal layer, and the bimetallic for needing to realize outer layer covers is compound
Pipe is not applicable.
Metallurgical composite pipe is to form metallurgical composite layer by certain technique between lining pipe and base's pipe, and faying face belongs to
The production price of metallurgical bonds, the metallurgy composite layer is partially expensive, and cost of manufacture is high, and work efficiency is low, is unfavorable for producing in batches.
Utility model content
The purpose of this utility model is to provide a kind of hot extrusions for effectively improving metal composite pipe production efficiency and quality
Molding die.
The technical solution that the utility model solves above-mentioned technical problem is as follows: a kind of metal composite pipe is hot extruded into pattern
Tool including extrusion die, the extrusion cylinder being arranged on extrusion die and is arranged in and squeezes drum outer wall and contact with extrusion die
Heating mantle and the pressure ram for being arranged in extrusion cylinder and being slidably connected with extrusion cylinder；Between the extrusion cylinder inner wall and pressure ram
It is formed with extrusion chamber, is filled with combined hollow cylinder blank material layer in the extrusion chamber；
Offer the squeezing passage being connected with extrusion chamber inside the extrusion die, and the center line of squeezing passage with
The center line of the pressure ram is located on the same line.
Further, the extrusion die includes support portion, the throat knot for being arranged in support portion and being connected to squeezing passage
Structure and the hatch frame being connected to the throat structures, and the upper end of the hatch frame is connected with the extrusion chamber,
The squeezing passage is provided in support portion, and the extrusion cylinder is in contact with support portion respectively with the heating mantle.
Further, the upper end diameter of the hatch frame is greater than lower end diameter, so that hatch frame has taper β, and 75 °
<β<150°。
Further, the pressure ram includes end head, connect with end head and be slidably matched with the extrusion cylinder inner wall
Interconnecting piece and the center needle being connect with the interconnecting piece by arc transition structure, the center needle and the extrusion cylinder inner wall
Between form extrusion chamber.
Further, end of the center needle far from crowded interconnecting piece is convex structure, and the center needle outer wall and institute
Stating has angle α/2 between the central axes of pressure ram, and 5 ° < α < 10 ° of angle.
Further, there is gap, and the gap is 0.03mm-0.06mm between the interconnecting piece and extrusion cylinder inner wall.
The utility model has the following beneficial effects: a kind of metal composite pipe provided by the utility model is hot extruded into
Pattern tool, by the peculiar tapered configuration of pressure ram and extrusion die, can effectively guarantee blank non-fixed length in extrusion process
Flowing, so that the compound pipe thickness squeezed out is uniform, and is conducive to the Uniform Flow of blank without dead zone in extrusion process；
The process flow is short, and energy consumption is less, high production efficiency, in the production of short route, single layer, the bilayer of manufacture different materials cladding
Or Multilayer metal tube, to meet the needs of different operating environment；And simple production process, parameter is easily controllable, gained tubing
Cladding thickness is uniform, clad is continuous, and film-film-substrate binding strength is high, thermal conductivity and conductivity are high, high reliablity.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is structure of extrusion schematic diagram in the utility model；
Fig. 3 is extrusion rod structure schematic diagram in the utility model；
Appended drawing reference shown in Fig. 1 to Fig. 3 respectively indicates are as follows: 1- extrusion die, 2- extrusion cylinder, 3- heating mantle, 4- are squeezed
Bar, 5- extrusion chamber, 6- squeezing passage, 101- support portion, 102- throat structures, 103- hatch frame, 401- end head, 402-
Interconnecting piece, the center 403- needle.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
As shown in Figure 1 to Figure 3, a kind of hot extrusion shaping mold of metal composite pipe, including extrusion die 1, setting are squeezing
Extrusion cylinder 2 on compression mould 1 and 2 outer wall of extrusion cylinder is set and the heating mantle 3 contacted with extrusion die 1 and setting are squeezing
The pressure ram 4 being slidably connected in cylinder 2 and with extrusion cylinder 2；Extrusion chamber is formed between 2 inner wall of extrusion cylinder and pressure ram 4
5, extrusion chamber 5 is interior to be filled with combined hollow cylinder blank material layer.
Preferably heating mantle 3 be resistance heating set 3, by resistance heating set 3 heat effect so that extrusion cylinder 2 and squeeze
Temperature needed for compression mould 1 reaches hot extrusion.Pressure ram 4 is slidably matched with extrusion cylinder 2, will squeezed by the effect of pressure ram 4
Combined hollow cylinder blank in pressure cavity 5 is squeezed to extrusion die 1, and then the extrusion molding out of squeezing passage 6.
Pressure ram is overall structure.Pressure ram 4 include end head 401, connect with end head 401 and with 2 inner wall of extrusion cylinder
The interconnecting piece 402 being slidably matched and the center needle 403 being connect with interconnecting piece 402 by arc transition structure, center needle 403 with
Extrusion chamber 5 is formed between 2 inner wall of extrusion cylinder.There is gap, and gap is between 2 inner wall of interconnecting piece 402 and extrusion cylinder
0.03mm-0.06mm, so that pressure ram 4 and extrusion cylinder 2 are always in the state that is slidably matched.When carrying out extrusion operation, squeeze
Machine acts in end head 401 as actuator, and drive connection portion 402 is slided in 2 inner wall of extrusion cylinder, thus drive connection portion
402 and center needle 403 the combination blank in extrusion chamber 5 is squeezed to extrusion die 1, realize multiple tube extrusion forming behaviour
Make.Wherein, the arc radius of arc transition structure is R, and radius R is related with inner wall cladding material, thickness；When inner wall clad
Thicker, R fillet is bigger.When needing very thin inner wall layer or when not being distinctly claimed inner wall layer thickness, R < 1.0mm；When interior packet
When coating thickness and pipe bulk layer thickness ratio > 1/20, R is about 20mm or more.
In order to guarantee to combine blank stability in extrusion process, in the utility model, center needle 403 is far from interconnecting piece
402 end is convex structure, and has angle α/2 between 403 outer wall of center needle and the central axes of the pressure ram 4, and
5 ° < α < 10 ° of angle.Center needle 403 is in certain taper, by the distinctive tapered configuration, so that combination blank is squeezing
Steady flow in the process, so that the compound pipe thickness squeezed out is uniform.Selection for angle, by L/D, (L is pipe range, D
For caliber) it determines, as L/D > 10, smaller angle is taken in angular range；As L/D < 10, take in angular range compared with big angle
Degree.
The throat knot that extrusion die 1 includes support portion 101, is arranged in support portion 101 and is connected to 6 upper end of squeezing passage
Structure 102 and the hatch frame 103 being connected to throat structures 102, and the upper end of hatch frame 103 and 5 phase of extrusion chamber
Connection, squeezing passage 6 are provided in support portion 101, and the extrusion cylinder 2 is in contact with support portion 101 respectively with heating mantle 3.It opens
Mouth structure 103 and throat structures 102 generate biggish plastic deformation to combined hollow cylinder blank, improve multiple tube consistency and
Mechanical property, blank herein are in forming belt；The blank of forming belt lower end is located at phase on the outside of setting zone, with the blank of setting zone
What is contacted is the support portion 101 of extrusion die.Combination blank flows into extrusion die 1 by hatch frame 103 by extrusion chamber 5
In interior squeezing passage 6.Its hatch frame 103 has certain taper β, and 75 ° < β < 150 °.By distinctive tapered configuration,
So that in extrusion process without dead zone, the flowing of advantageously combined blank；When the preferable material of external sheath mobility, such as aluminium
When alloy or relatively thin compound tube wall, β answers bigger than normal in value range；When the poor material of external sheath mobility, such as copper
When alloy or thicker compound tube wall, β answers less than normal in value range.
When carrying out multiple tube preparation, prepares tubular blank, tubular blank surface is cleared up；Tubular blank is carried out clear
When reason, alkali cleaning first is carried out to tubular blank and is then dried using pickling.Tubular blank after cleaning is passed through by outer
Tubular blank is assembled to obtain composite blank to interior clad sequence；Composite blank is added in combustion furnace and is carried out
Homogenize annealing；Lubricant is smeared on 2 inner wall of extrusion cylinder in advance, the composite billet bed of material is placed in extrusion chamber 5, is utilized
Heating mantle 3 preheats extrusion cylinder 2 and extrusion die 1；Its preheating temperature is 360 DEG C -380 DEG C, and preferred preheating temperature is
360 DEG C or 380.Pressure ram interconnecting piece 402 and center needle 403 is driven to apply extruding force to composite blank finally by extruder,
The multiple tube extrusion molding from squeezing passage 6 under pressure.
The above are specific embodiment of the present utility model, from implementation process as can be seen that provided by the utility model
A kind of hot extrusion shaping mold of metal composite pipe can be protected effectively by the peculiar tapered configuration of pressure ram and extrusion die
Blank non-fixed length flowing in extrusion process is demonstrate,proved, so that the compound pipe thickness squeezed out is uniform, and in extrusion process without dead
Area is conducive to the Uniform Flow of blank；The process flow is short, and energy consumption is less, high production efficiency, in the production of short route, system
Single layer, the bilayer or multilayer metal tube of different materials cladding are made, to meet the needs of different operating environment；And production technology letter
Single, parameter is easily controllable, and the cladding thickness of gained tubing is uniform, clad is continuous, film-film-substrate binding strength height, thermal conductivity and electricity
Conductance height, high reliablity.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (6)
1. a kind of hot extrusion shaping mold of metal composite pipe, which is characterized in that including extrusion die (1), be arranged in extrusion die
Extrusion cylinder (2) and setting on tool (1) in extrusion cylinder (2) outer wall and the heating mantle (3) that contacts with extrusion die (1) and are arranged
The pressure ram (4) being slidably connected in extrusion cylinder (2) and with extrusion cylinder (2)；Extrusion cylinder (2) inner wall and pressure ram (4) it
Between be formed with extrusion chamber (5), combined hollow cylinder blank material layer is filled in the extrusion chamber (5)；
The squeezing passage (6) being connected with extrusion chamber (5), and the squeezing passage are offered inside the extrusion die (1)
(6) center line and the center line of the pressure ram (4) are located on the same line.
2. a kind of hot extrusion shaping mold of metal composite pipe according to claim 1, which is characterized in that the extrusion die
Tool (1) includes support portion (101), setting in the throat structures that support portion (101) is interior and is connected to squeezing passage (6) upper end
(102) and with the throat structures (102) hatch frame (103) being connected to, and the upper end of the hatch frame (103) and institute
It states extrusion chamber (5) to be connected, the squeezing passage (6) is provided in support portion (101), and the extrusion cylinder (2) adds with described
Hot jacket (3) is in contact with support portion (101) respectively.
3. a kind of hot extrusion shaping mold of metal composite pipe according to claim 2, which is characterized in that the opening knot
The upper end diameter of structure (103) is greater than lower end diameter, so that hatch frame (103) has taper β, and 75 ° < β < 150 °.
4. a kind of hot extrusion shaping mold of metal composite pipe according to any one of claims 1 to 3, which is characterized in that
The pressure ram (4) includes end head (401), connect with end head (401) and be slidably matched with the extrusion cylinder (2) inner wall
Interconnecting piece (402) and the center needle (403) being connect with the interconnecting piece (402) by arc transition structure, the center needle
(403) extrusion chamber (5) are formed between the extrusion cylinder (2) inner wall.
5. a kind of hot extrusion shaping mold of metal composite pipe according to claim 4, which is characterized in that the center needle
(403) end far from crowded interconnecting piece (402) is convex structure, and center needle (403) outer wall and the pressure ram (4)
Central axes between there are angle α/2, and 5 ° < α < 10 ° of angle.
6. a kind of hot extrusion shaping mold of metal composite pipe according to claim 5, which is characterized in that the interconnecting piece
(402) it is slidably connected between extrusion cylinder (2) inner wall and there is gap, the gap is 0.03mm-0.06mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822163553.5U CN209393743U (en) | 2018-12-21 | 2018-12-21 | A kind of hot extrusion shaping mold of metal composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822163553.5U CN209393743U (en) | 2018-12-21 | 2018-12-21 | A kind of hot extrusion shaping mold of metal composite pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209393743U true CN209393743U (en) | 2019-09-17 |
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ID=67895544
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822163553.5U Active CN209393743U (en) | 2018-12-21 | 2018-12-21 | A kind of hot extrusion shaping mold of metal composite pipe |
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| Country | Link |
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| CN (1) | CN209393743U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454121A (en) * | 2018-12-21 | 2019-03-12 | 崇州天智轻量化制造有限公司 | The hot extrusion shaping mold of metal composite pipe and the method for preparing metal composite pipe |
| CN114850243A (en) * | 2022-06-13 | 2022-08-05 | 绍兴市天龙锡材有限公司 | Zinc alloy extrusion die |
-
2018
- 2018-12-21 CN CN201822163553.5U patent/CN209393743U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454121A (en) * | 2018-12-21 | 2019-03-12 | 崇州天智轻量化制造有限公司 | The hot extrusion shaping mold of metal composite pipe and the method for preparing metal composite pipe |
| CN114850243A (en) * | 2022-06-13 | 2022-08-05 | 绍兴市天龙锡材有限公司 | Zinc alloy extrusion die |
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