CN209502590U - A kind of metal alloy compositions extrusion molding dies - Google Patents

A kind of metal alloy compositions extrusion molding dies Download PDF

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Publication number
CN209502590U
CN209502590U CN201822141859.0U CN201822141859U CN209502590U CN 209502590 U CN209502590 U CN 209502590U CN 201822141859 U CN201822141859 U CN 201822141859U CN 209502590 U CN209502590 U CN 209502590U
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extrusion
cavity plate
extrusion cylinder
cylinder
pressure ram
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王明辉
程秀明
任明文
管晓芳
赵泼
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Jilin University
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Jilin University
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Abstract

A kind of metal alloy compositions extrusion molding dies, including pressure ram (1), squeeze seat (8), outer extrusion cylinder (3), extrusion cylinder (4), cavity plate A (6), cavity plate B (7), the outer extrusion cylinder (3), which is fixed on, to be squeezed on seat (8), and the extrusion cylinder (4), cavity plate A (6), cavity plate B (7) are sequentially coaxially detachably fixed in outer extrusion cylinder (3) and are fitted close by the conical surface;The pressure ram (1) passes through fixed plate (2) and is placed in extrusion cylinder (4);Extrusion cylinder (4) internal diameter is matched with pressure ram (1) outer diameter;The blank (5) is placed in the extrusion cylinder (4);The shape of the cavity plate B7 is consistent with the shape processed needed for extrusion, and cavity plate B7 is replaced according to the shape of processing needed for extrusion, replaces cavity plate A6 according to the 30%-50% of total extrusion ratio.The utility model can rapid shaping there is the extrusion of high extrusion ratio, production efficiency greatly improves.

Description

A kind of metal alloy compositions extrusion molding dies
Technical field
The utility model relates to a kind of metal material, in particular to a kind of difficult deformable metal alloy material extrusion forming mold Tool.
Background technique
Extruding has the characteristics that technology is high, variety diversity is good and production is convenient, is metal material industrial production The important method for preparing and processing with new materials and new products such as various composite materials, dusty material, high-performance difficult-to-machine materials, It is widely used to the production in the fields such as aerospace, naval vessel, communications and transportation, the energy, metallurgy, chemical industry, defence and military.
In metal material extrusion process, deformable material is by three-dimensional compressive stress, it is prone to Plastic Flow, deformation process energy Effectively refinement metal grain, makes material mechanical performance get a promotion, however, when strain rate is excessively high or extrusion ratio is excessive, modeling Property resistance of deformation is big, and Deformation structure has little time to coordinate, and metal material is easy to produce cracking, influences Forming Quality and production efficiency, The structure property of Forming Workpiece not can guarantee simultaneously, influence product quality, performance difficult-to-machine material high for magnesium alloy etc. It is even more so.
Utility model content
The utility model, can mainly solving the technical problems that provide a kind of metal alloy slab extrusion molding dies Rapid shaping has the extrusion of high extrusion ratio, and production efficiency greatly improves, and can guarantee the Forming Quality of extrusion.
In order to solve the above technical problems, the technical solution that the utility model uses is: providing a kind of metal alloy casting Base extrusion molding dies,
A kind of metal alloy slab extrusion molding dies, including pressure ram 1, squeeze seat 8, outer extrusion cylinder 3, extrusion cylinder 4, Cavity plate A6, cavity plate B7, it is characterised in that: the outer extrusion cylinder 3, which is fixed on, to be squeezed on seat 8, the extrusion cylinder 4, cavity plate A6, recessed Mould B7 is sequentially coaxially detachably fixed in outer extrusion cylinder 3 and is fitted close by the conical surface;The pressure ram 1 passes through fixed plate 2 It is placed in extrusion cylinder 4;4 internal diameter of extrusion cylinder is matched with 1 outer diameter of pressure ram;The blank 5 is placed in the extrusion cylinder 4; The shape of the cavity plate B7 is consistent with the shape processed needed for extrusion, replaces cavity plate according to the shape of processing needed for extrusion B7 replaces cavity plate A6 according to the 30%-50% of total extrusion ratio.
Total extrusion ratio are as follows:
The extrusion ratio of cavity plate A6 is n1=D02/D12;The extrusion ratio of cavity plate B7 is n2=D12/D22
It obtains: the extrusion ratio n1=D0 of cavity plate A62/D12=(30%-50%) n;
Wherein: D1 is cavity plate A6 diameter, and D2 is cavity plate B7 diameter;D0 is the diameter of blank 5.
The length that the cavity plate A6 squeezes work belt is 10-15mm.
The beneficial effects of the utility model are:
1) cavity plate middle section has the extruding work belt of certain length, and since single deformable squeeze is than reducing, extrusion is not allowed Easy to crack, Forming Quality is improved, and shaping speed can be improved.
2) using multiple shaping moulds are fixedly installed with above seat squeezing, as pressure ram moves down in extrusion cylinder, energy It is enough to be sequentially pressed into blank in two shaping moulds, stablize to be completed at the same time the extrusion with high extrusion ratio by once extruding Molding, and shaping speed and die life, high production efficiency can be improved, and can guarantee Forming Quality, especially suitable for difficulty The extrusion forming of forming metal;
3) each shaping mould is fixed on using outer extrusion cylinder and fixed plate and is squeezed on seat, mold installation and removal are convenient, fit It is wide with range.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of mold described in the utility model;
Wherein: 1, pressure ram, 2, fixed plate, 3, outer extrusion cylinder, 4, extrusion cylinder, 5, blank, 6, cavity plate A, 7, cavity plate B, 8 squeeze Wedge.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model It can be easier to be identified by a person skilled in the art with feature, to make the protection scope of the utility model apparent clear Define.
Referring to Fig. 1, the utility model embodiment includes:
A kind of magnesium alloy ingot extrusion molding dies, comprising: squeeze seat 8, cavity plate A6 and cavity plate B7, each extrusion cylinder 4 and cavity plate A6 and 7 is removably attached to the top for squeezing seat 8 by outer extrusion cylinder 3, and blank 5 is placed in extrusion cylinder 4 Interior, pressure ram 1 passes through fixed plate 2 and is placed in extrusion cylinder 4.
Wherein, the blank 5 is the magnesium ingot casting of diameter D0, and cavity plate A6 diameter is D1, and cavity plate B7 diameter is D2, the shape of cavity plate B7 It is consistent with the shape of processing needed for extrusion, the shape of the processing according to needed for extrusion come molding concave die B7 needed for any replacement, Required cavity plate A6: total extrusion ratio is replaced according to the 30%-50% of total extrusion ratioIts In, the extrusion ratio n1=D0 of cavity plate A62/D12The extrusion ratio n2=D1 of=(30%-50%) n, cavity plate B72/D22
The operating process of a kind of magnesium alloy ingot extrusion molding dies described in the utility model are as follows: be placed in blank 5 In extrusion cylinder 4, extruder drives pressure ram 1 to run down, and blank 5 is successively pressed into cavity plate A6, cavity plate B7, finally obtains complete Extrusion.
It is different from the prior art, a kind of magnesium alloy ingot extrusion molding dies described in the utility model, cavity plate A6 exists Cavity plate middle section is equipped with the extruding work belt of 10-15mm in forming process, stablizes convenient for billet size, so that in entire forming process Blank not will form the defects of fold, surface indentation in a pressing direction, and improve die life.Meanwhile to avoid The too long metal easily caused of work belt coheres, and lubricant aquadag is uniformly smeared in concave die cavity.
Embodiment 1
Diameter is the cylindrical fine grain magnesium alloy rod of 10mm.Firstly, turned blank, it is contemplated that the requirement of surface quality, The suitably cylindrical magnesium alloy ingot of diameter can be selected according to extrusion ratio, length can determine according to actual needs, will be through homogenizing The magnesium alloy blank 5 (two-step homogenization annealing) of processing is heated to assigned temperature (300 DEG C -450 DEG C) and keeps the temperature 1-3h, heat preservation Temperature should be higher than that the recrystallization temperature of magnesium alloy, while be lower than the melting temperature of alloy main phases precipitated, while heating extrusion cylinder 4, cavity plate A6 and 7 is to assigned temperature (300 DEG C -450 DEG C);Secondly, extruding force is calculated according to the extrusion ratio relations of distribution, according to crowded Pressure and working condition selection extrusion equipment simultaneously make extrusion die, and according to assembling extrusion die device as shown in Figure 1, guarantee Pressure ram 1, outer extrusion cylinder 3, extrusion cylinder 4, cavity plate A6 and cavity plate B7 coaxial arrangement, the type chamber of extrusion cylinder 4, cavity plate A6 and cavity plate B7 Interior uniform smearing lubricant aquadag;Then sufficient magnesium alloy blank 5 will be kept the temperature to be put into the beginning to speak of extrusion cylinder 4, starting is squeezed Press applies pressure to blank 5 by pressure ram 1 and carries out constant speed extruding, blank 1 is made to sequentially enter cavity plate A6 and cavity plate B7, squeezes It is molded go out fine grain magnesium alloy rod, the magnesium alloy rod obtained after extruding through 340 DEG C of -420 DEG C of solution treatment or timeliness at Reason is surface-treated magnesium extruded bars after progress structure property test determines that microstructure meets design requirement.
Embodiment 2
Rectangle fine grain magnesium alloy profiles having a size of 80X10.Firstly, turned blank, it is contemplated that the requirement of surface quality, it can Cylindrical magnesium alloy ingot is processed into the suitable rectangle magnesium alloy blank of size according to extrusion ratio, length can be according to actual needs It determines, the magnesium alloy blank 5 (two-step homogenization annealing) through Homogenization Treatments is heated to assigned temperature (300 DEG C -450 DEG C) And 1-3h is kept the temperature, holding temperature should be higher than that the recrystallization temperature of magnesium alloy, while be lower than the melting temperature of alloy main phases precipitated, Extrusion cylinder 4, cavity plate A6 and 7 to assigned temperature (300 DEG C -450 DEG C) are heated simultaneously;Secondly, being calculated according to the extrusion ratio relations of distribution Extruding force according to extruding force and working condition selection extrusion equipment and makes extrusion die, and squeezes according to assembling as shown in Figure 1 Die device guarantees pressure ram 1, outer extrusion cylinder 3, extrusion cylinder 4, cavity plate A6 and cavity plate B7 coaxial arrangement, extrusion cylinder 4, cavity plate A6 And the intracavitary uniform smearing lubricant aquadag of type of cavity plate B7;Then sufficient magnesium alloy blank 5 will be kept the temperature and be put into extrusion cylinder 4 In beginning to speak, start extruder, pressure is applied to blank 5 by pressure ram 1 and carries out constant speed extruding, blank 1 is made to sequentially enter cavity plate A6 and cavity plate B7, extrusion forming go out fine grain magnesium alloy rod, and the magnesium alloy profiles obtained after extruding are through 340 DEG C of -420 DEG C of solid solutions Processing or ageing treatment carry out table to magnesium extruded bars after progress structure property test determines that microstructure meets design requirement Surface treatment.
The above is only the preferred embodiment of the present invention, is not construed as limitations of the present invention, based on this Utility model may have various modifications and variations, should be included within the scope of protection of this utility model.

Claims (3)

1. a kind of metal alloy compositions extrusion molding dies, including pressure ram (1), extruding seat (8), outer extrusion cylinder (3), extrusion cylinder (4), cavity plate A (6), cavity plate B (7), it is characterised in that: the outer extrusion cylinder (3), which is fixed on, to be squeezed on seat (8), the extruding Cylinder (4), cavity plate A (6), cavity plate B (7) are sequentially coaxially detachably fixed in outer extrusion cylinder (3) and are fitted close by the conical surface;Institute Pressure ram (1) is stated to be placed in extrusion cylinder (4) across fixed plate (2);Extrusion cylinder (4) internal diameter and pressure ram (1) outer diameter match It closes;Blank (5) is placed in the extrusion cylinder (4);The shape of the cavity plate B (7) is consistent with the shape processed needed for extrusion, root Cavity plate B (7) are replaced according to the shape of processing needed for extrusion, and cavity plate A (6) are replaced according to the 30%-50% of total extrusion ratio.
2. a kind of metal alloy compositions extrusion molding dies according to claim 1, it is characterised in that: total extruding Than are as follows:
The extrusion ratio of cavity plate A (6) is n1=D02/D12;The extrusion ratio of cavity plate B (7) is n2=D12/D22
It obtains: the extrusion ratio n1=D0 of cavity plate A (6)2/D12=(30%-50%) n;
Wherein: D1 is cavity plate A (6) diameter, and D2 is cavity plate B (7) diameter;D0 is the diameter of blank (5).
3. a kind of metal alloy compositions extrusion molding dies according to claim 1, it is characterised in that: the cavity plate A (6) length for squeezing work belt is 10-15mm.
CN201822141859.0U 2018-12-20 2018-12-20 A kind of metal alloy compositions extrusion molding dies Active CN209502590U (en)

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CN201822141859.0U CN209502590U (en) 2018-12-20 2018-12-20 A kind of metal alloy compositions extrusion molding dies

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114632833A (en) * 2022-05-19 2022-06-17 中信戴卡股份有限公司 Isothermal extrusion die and extrusion method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114632833A (en) * 2022-05-19 2022-06-17 中信戴卡股份有限公司 Isothermal extrusion die and extrusion method thereof

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