CN106623821A - Gravity metal casting mold preparing magnesium alloy cast ingot specimen - Google Patents
Gravity metal casting mold preparing magnesium alloy cast ingot specimen Download PDFInfo
- Publication number
- CN106623821A CN106623821A CN201611073287.6A CN201611073287A CN106623821A CN 106623821 A CN106623821 A CN 106623821A CN 201611073287 A CN201611073287 A CN 201611073287A CN 106623821 A CN106623821 A CN 106623821A
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- Prior art keywords
- mould
- die cavity
- magnesium alloy
- pour
- groove
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/06—Ingot moulds or their manufacture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/005—Casting ingots, e.g. from ferrous metals from non-ferrous metals
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a gravity metal casting mold preparing a magnesium alloy cast ingot specimen. The mold comprises a first mold and a second mold. A first cavity is formed in the first mold, a second cavity which is matched with the first cavity to form an integral pouring cavity is formed in the second mold, a pouring table A is arranged in the middle position in the first cavity, a pouring groove A is formed in the pouring table A, a pouring table B matched with the pouring table A is arranged in the second cavity, a pouring groove B which is matched with the pouring groove A to form a pouring channel is formed in the pouring table B, a groove C is formed in the pouring groove A, and a groove D is formed in the pouring groove B. According to the mold disclosed by the invention, a liquid magnesium alloy can be injected into two ends of the cavity from the middle position of the mold at the same time, so that the time required by conduction is relatively short; in the whole pouring process, the liquid magnesium alloy can be uniformly cooled, the setting time is consistent, and the testing specimen is consistent in tissue, so that defects such as shrinkage can be reduced or avoided to the greatest extent.
Description
Technical field
The present invention relates to mould design and manufacture field, concretely relates to a kind of gravity for preparing magnesium alloy ingot sample
Metal casting mould.
Background technology
Casting is a kind of traditional heat processing technique, economical and practical, particularly with complex-shaped, the zero of the difficult cutting of material
Part, casting method can more highlight its advantage.
Magnesium alloy density is little, good heat conductivity, liquation state when good fluidity, easily air-breathing, oxidation in cast cavity filling process, because
This mould therefor will consider that whole casting cycle can be cooled down uniformly, and casting shrinkage defect is reduced or avoided as far as possible.
The existing Gravity Permanent-Mold Casting Process mould for magnesium alloy ingot sample, the passage of its cast is arranged on die cavity
Side, there is following defect in this kind of casting mould：First, liquid magnesium alloy is the lateral die cavity internal flow from die cavity,
It is longer the time required to conduction in die cavity, cause the liquid magnesium alloy in whole casting cycle to realize uniform cooling, test
Sample tissue is inconsistent, causes the defects such as shrinkage porosite；2nd, the two ends of the first mould and the second mould are bolted, defect
It is that positioning is inaccurate.
The content of the invention
It is an object of the present invention to providing one kind for solution problems of the prior art prepares magnesium alloy ingot sample
Gravity Permanent-Mold Casting Process mould, liquid magnesium alloy can be injected simultaneously from the centre position of mould to the two ends of die cavity, conduct
Required time is shorter, and liquid magnesium alloy can realize uniform cooling in whole casting cycle, and setting time is consistent, test sample
Tissue is consistent, so that as far as possible the defects such as shrinkage porosite are reduced or avoided.
For achieving the above object, the technical solution adopted in the present invention is：A kind of gravity for preparing magnesium alloy ingot sample
Metal casting mould, including the first mould and the second mould for being engaged with the first mould, on the first mould first is offered
Die cavity, offers the Second-Type for coordinating to constitute the complete molding cavities for pouring with first die cavity on the second mould
Chamber,
The bosom position of first die cavity is provided with and for the first cavity spacer forming cavity A and die cavity B to pour platform A, pours
Offer along its length on platform A and pour groove A, be provided with the second die cavity for pour platform A cooperation pour platform B, pour
Build platform B be provided with for pour groove A coordinate with constitute one pour passage pour groove B, pour edge groove A on and pour
The width of groove A opens up fluted C, and pour to be offered on groove B makes liquid magnesium for coordinating with groove C to constitute one
Alloy flows into the groove D of the passage in the first die cavity, and the first die cavity and the second die cavity are pouring the one of entrance near pour passage
End is opening-like；
In the state of the first mould and the second mould closure, by pour into passage liquid magnesium alloy to pouring, liquid magnesium is made
Alloy is entered into the first die cavity and the second die cavity and dispersed to whole die cavity simultaneously from the passage.
Further, the cross section of first die cavity and the second die cavity is stepped so that the depth of whole die cavity by
Bottom up becomes larger, in the state of liquid magnesium alloy is dispersed to whole die cavity, opening-like one end and the sky of die cavity
Gas contact area is big, cools down the liquid magnesium alloy in whole die cavity uniform.
Further, one end of first mould and the second mould is bolted, and the other end is rotated by bearing pin
Connection.
Further, one end of first mould is provided with a connecting plate A being square, and connecting hole A is offered thereon,
One end of second mould is correspondingly provided with a connecting plate B for being connected with connecting plate A, and correspondence offers one on connecting plate B
The individual connecting hole B for being connected with connecting hole A.
Further, the center line for pouring passage is parallel with the width of the first mould.
Further, it is described to pour platform A and pour platform B and be square.
Further, the quantity of the passage is two.
Compared with prior art, beneficial effects of the present invention are：
1st, the passage of cast of the invention is arranged on the bosom position of mould, and its advantage can be the interposition from mould
The two ends to die cavity are put while injecting liquid magnesium alloy, shorter, the liquid magnesium alloy in whole casting cycle the time required to conduction
Uniform cooling can be realized, setting time is consistent, test sample tissue is consistent, so that as far as possible the defects such as shrinkage porosite are reduced or avoided.
2nd, one end of the first mould of the invention and the second mould is rotated by bearing pin and is connected, and the other end is connected by bolt
Connect, its advantage be position it is more accurate.
Description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the structural representation after the first mould and the second mould closure in Fig. 1.
Fig. 3 is the A-A of Fig. 2 to sectional view.
Mark in figure：1st, the first mould, the 101, first die cavity, 101-1, die cavity A, 101-2, die cavity B, 102, pour platform A,
102-1, groove A is poured, 102-2, groove C, 103, connecting plate A, 104, pour entrance, the 2, second mould, the 201, second die cavity,
202nd, pour platform B, 202-1, pour groove B, 202-2, groove D.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described in further detail.
As illustrated, a kind of Gravity Permanent-Mold Casting Process mould for preparing magnesium alloy ingot sample, including the first mould 1 and with
One end of the second mould 2 that first mould 1 is engaged, the first mould 1 and the second mould 2 is bolted, and the other end passes through
Bearing pin rotates connection.The first die cavity 101 is offered on first mould 1, the second die cavity 201, the first type are offered on the second mould 2
The die cavity 201 of chamber 101 and second coordinates to constitute one for the die cavity of its internal pouring liquid magnesium alloy, the first die cavity 101
It is stepped with the cross section of the second die cavity 201 so that the depth of whole die cavity is become larger by bottom up, the first die cavity
101 and second die cavity 201 gradient be 1:10～1:12, in the state of liquid magnesium alloy is dispersed to whole die cavity, die cavity
Opening-like one end is big with air contact area, cools down the liquid magnesium alloy in whole die cavity uniform.
The bosom position of the first die cavity 101 is provided with and pours platform A102, pours platform A and the first die cavity 101 is separated into shaping
Chamber A101-1 and die cavity B101-2 two parts, the upper surface for pouring platform A102 is concordant with the upper surface of the first mould 1, pours platform
Offer along its length on A102 and pour groove A102-1, be provided with the second die cavity 201 for pour platform A102 and coordinate
Pour platform B202, pour platform B202 and be provided with and pour groove B202-1, pour groove A and pour groove B and coordinate to constitute one
It is individual to pour passage, the circular in cross-section of passage is poured, the center line for pouring passage is parallel with the width of the first mould 1.
Pour platform A102 and pour platform B and be square.
Pour and offer two groove C102-2 along the width for pouring groove A102-1 on groove A102-1, pour recessed
Correspondence offers two and liquid magnesium alloy is flowed into the first type to constitute for coordinating with groove C102-2 on groove B202-1
The groove D202-2 of the passage in chamber 101, the first die cavity 101 and the second die cavity 201 are pouring entrance 104 near pour passage
One end is opening-like.
Rotated around bearing pin by making the first mould 1, close the first mould 1 and the second mould 2, then to pouring passage
Liquid magnesium alloy is inside poured into, liquid magnesium alloy is made from the passage while entering into the first die cavity 101-1 and the second die cavity 101-2
Interior and dispersed to whole die cavity.
One end of first mould 1 is provided with a connecting plate A103 being square, and connecting hole A, the second mould 2 are offered thereon
One end be correspondingly provided with one for the connecting plate B that is connected with connecting plate A, on connecting plate B correspondence offer one for
The connecting hole B that connecting hole A is connected.
The other end of the first mould 1 is provided with two connecting plate C, offers connecting hole C on connecting plate C, the second mould 2 it is another
One end is correspondingly provided with one and connecting hole C is offered on connecting plate C for the connecting plate D being engaged with two connecting plate C, connects
Correspondence offers the connecting hole D for coordinating with connecting hole C on plate D, by penetrating bearing pin in connecting hole C and connecting hole D, with
The second mould 2 is set to rotate around the first mould 1 along bearing pin.
Its operation principle is：Die casting is formed, and is divided into two parts, i.e. the first mould and the second mould, for magnesium alloy
Liquid is heated evenly, setting time is consistent, and test sample tissue is consistent, and the passage of mould is arranged on mould centre position, and first
One end of mould and the second mould is rotatably coupled by rotating shaft, and the other end of the first mould and the second mould is connected by bolt
Connect, being bolted latter two connection member can mutually rotate, the first mould and the second mould surround axis of rotation with reality
Existing mold open or closure.Before pouring liquid magnesium alloy, the first mould and second mould one end pass through to rotate around the axis to close,
Other end is tightened by bolt so that mould forms a complete die cavity.It is when starting to pour, the present invention is logical according to pouring
Entrance mode upward in road is placed, and then liquid magnesium alloy is cast in mould, in evenly spreading to the cavity of mould.Cast
After completing and cooling down, by unclamping bolt, front and rear part is opened with axis of rotation two parts, takes out magnesium alloy test ingot casting.
In order to put forward heavy alloyed combination property, by appropriate solid solution, aging thermal treating process, with realize alloy solid solution and
Precipitating reinforcing effect.Before being heat-treated, the thickness block such as should be cut into, often by the ingot casting of gained according to sampling point
Block thickness about 20mm.
The process for preparing the sample is as follows：Because of metal mold thermal conductivity preferably, foundry goods easily produces cold shut, pours less than, pore
Etc. casting flaw, therefore must preheat before cast.Preheating temperature determines that the mold preheating temperature is 150 according to magnesium alloy material
～300 DEG C.In fusion process, induction furnace is quickly heated with high-power 12～16kW, magnesium ingot is added in preheated crucible, together
When be passed through 1% SF6 and the mixed gas of 99% CO2 are protected.To reduce the scaling loss of alloying element, after magnesium ingot is completely melt
Add intermediate alloy.After all furnace charges are completely melt, induction furnace power is adjusted, carry out slowly adding with 6～8KW of small-power
Heat, when waiting melt temperature to rise to 780 DEG C, stops heating, stands, cast.First at a slow speed liquation should be made smoothly to be full of mould during cast
Tool bottom；Hereafter avoid melt temperature from reducing too fast, poring rate can be accelerated, contribute to feeding；Finally pour into a mould slowly again.In melting
During, there should be protective gas to protect, prevent liquation from aoxidizing and burning.
The purpose of the present invention is to improve the not enough present situation of presently relevant magnesium alloy mold design, at present in research magnesium alloy casting
In the manufacture method of modeling tool, related preferably mould is not found.
Present configuration is simple, low production cost, manufacture easy to process, casting flaw is few, it is adaptable to middle or small casting enterprise
Industry, the production of the Mg alloy castings sample that casting dimension is less, structure is relative complex.
The purpose of Homogenization Treatments is to eliminate cast sturcture's segregation, evening chemical composition, and non-uniform components must be by expanding
Dissipate to carry out.
Claims (7)
1. a kind of Gravity Permanent-Mold Casting Process mould for preparing magnesium alloy ingot sample, including the first mould（1）And with the first mould
（1）The second mould being engaged（2）, the first mould（1）On offer the first die cavity（101）, the second mould（2）On offer use
In with first die cavity（101）Coordinate to constitute the second die cavity of the complete molding cavities for pouring（201）, its feature exists
In：
First die cavity（101）Bosom position be provided with the first die cavity（101）Separate forming cavity A（101-1）And type
Chamber B（101-2）Pour platform A（102）, pour platform A（102）On offer pour groove A along its length（102-1）, the
Two die cavities（201）Inside be provided with for pour platform A（102）What is coordinated pours platform B（202）, pour platform B（202）Be provided with for
With pour groove A（102-1）Coordinate with constitute one pour passage pour groove B（202-1）, pour groove A（102-1）On
Edge pours groove A（102-1）Width open up fluted C（102-2）, pour groove B（202-1）On offer for
Groove C（102-2）Coordinate makes liquid magnesium alloy flow into the first die cavity to constitute one（101）The groove D of interior passage（202-
2）, the first die cavity（101）With the second die cavity（201）Entrance is being poured near pour passage（104）One end it is opening-like；
In the first mould（1）With the second mould（2）In the state of closure, by pour into passage liquid magnesium alloy to pouring, make
Liquid magnesium alloy enters into the first die cavity simultaneously from the passage（101-1）With the second die cavity（101-2）It is interior and it is dispersed extremely
Whole die cavity.
2. a kind of Gravity Permanent-Mold Casting Process mould for preparing magnesium alloy ingot sample according to claim 1, its feature exists
In：First die cavity（101）With the second die cavity（201）Cross section it is stepped so that the depth of whole die cavity is by bottom
Become larger upwards, in the state of liquid magnesium alloy is dispersed to whole die cavity, opening-like one end and the air of die cavity connect
Contacting surface product is big, cools down the liquid magnesium alloy in whole die cavity uniform.
3. a kind of Gravity Permanent-Mold Casting Process mould for preparing magnesium alloy ingot sample according to claim 2, its feature exists
In：First mould（1）With the second mould（2）One end be bolted, the other end by bearing pin rotate connect.
4. a kind of Gravity Permanent-Mold Casting Process mould for preparing magnesium alloy ingot sample according to claim 1 or 3, its feature
It is：First mould（1）One end be provided with a connecting plate A being square（103）, offer connecting hole A thereon, second
Mould（2）One end be correspondingly provided with one for and connecting plate A（103）The connecting plate B being connected, correspondence is opened up on connecting plate B
There is a connecting hole B for being connected with connecting hole A.
5. a kind of Gravity Permanent-Mold Casting Process mould for preparing magnesium alloy ingot sample according to claim 1, its feature exists
In：The center line for pouring passage and the first mould（1）Width it is parallel.
6. a kind of Gravity Permanent-Mold Casting Process mould for preparing magnesium alloy ingot sample according to claim 1, its feature exists
In：It is described to pour platform A（102）It is square with platform B is poured.
7. a kind of Gravity Permanent-Mold Casting Process mould for preparing magnesium alloy ingot sample according to claim 1, its feature exists
In：The quantity of the passage is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611073287.6A CN106623821A (en) | 2016-11-29 | 2016-11-29 | Gravity metal casting mold preparing magnesium alloy cast ingot specimen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611073287.6A CN106623821A (en) | 2016-11-29 | 2016-11-29 | Gravity metal casting mold preparing magnesium alloy cast ingot specimen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106623821A true CN106623821A (en) | 2017-05-10 |
Family
ID=58814028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611073287.6A Pending CN106623821A (en) | 2016-11-29 | 2016-11-29 | Gravity metal casting mold preparing magnesium alloy cast ingot specimen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106623821A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009297721A (en) * | 2008-06-10 | 2009-12-24 | Daido Steel Co Ltd | Mold for ingot casting, and method for casting ingot |
| CN201552280U (en) * | 2009-11-05 | 2010-08-18 | 上海交通大学 | Pouring die reducing for shrinkage porosity and shrinkage cavity inside ingot |
| CN203484621U (en) * | 2013-09-24 | 2014-03-19 | 南京宁铁有色合金科技开发有限公司 | Aluminum ingot mold used for tensile test |
| CN203621412U (en) * | 2014-01-02 | 2014-06-04 | 南通恒秀铝热传输材料有限公司 | Die for casting magnesium alloy ingot |
| CN205183748U (en) * | 2015-11-18 | 2016-04-27 | 江西万泰铝业有限公司 | Aluminum ingot demolding mechanism |
| CN105522140A (en) * | 2014-09-30 | 2016-04-27 | 温兴琴 | Preparation process of magnesium aluminum yttrium alloy |
| CN105817610A (en) * | 2016-05-16 | 2016-08-03 | 宁波工程学院 | Improved casting die and casting method for metal castings |
| CN206215878U (en) * | 2016-11-29 | 2017-06-06 | 河南科技大学 | A kind of Gravity Permanent-Mold Casting Process mould for preparing magnesium alloy ingot sample |
-
2016
- 2016-11-29 CN CN201611073287.6A patent/CN106623821A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009297721A (en) * | 2008-06-10 | 2009-12-24 | Daido Steel Co Ltd | Mold for ingot casting, and method for casting ingot |
| CN201552280U (en) * | 2009-11-05 | 2010-08-18 | 上海交通大学 | Pouring die reducing for shrinkage porosity and shrinkage cavity inside ingot |
| CN203484621U (en) * | 2013-09-24 | 2014-03-19 | 南京宁铁有色合金科技开发有限公司 | Aluminum ingot mold used for tensile test |
| CN203621412U (en) * | 2014-01-02 | 2014-06-04 | 南通恒秀铝热传输材料有限公司 | Die for casting magnesium alloy ingot |
| CN105522140A (en) * | 2014-09-30 | 2016-04-27 | 温兴琴 | Preparation process of magnesium aluminum yttrium alloy |
| CN205183748U (en) * | 2015-11-18 | 2016-04-27 | 江西万泰铝业有限公司 | Aluminum ingot demolding mechanism |
| CN105817610A (en) * | 2016-05-16 | 2016-08-03 | 宁波工程学院 | Improved casting die and casting method for metal castings |
| CN206215878U (en) * | 2016-11-29 | 2017-06-06 | 河南科技大学 | A kind of Gravity Permanent-Mold Casting Process mould for preparing magnesium alloy ingot sample |
Non-Patent Citations (1)
| Title |
|---|
| 李建弘等: "模具结构与浇注温度对Mg-6Al-2.4Y合金力学性能的影响", 《特种铸造及有色合金》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20170510 |