CN106834903A - A kind of composite material mould and preparation method thereof - Google Patents
A kind of composite material mould and preparation method thereof Download PDFInfo
- Publication number
- CN106834903A CN106834903A CN201710161582.5A CN201710161582A CN106834903A CN 106834903 A CN106834903 A CN 106834903A CN 201710161582 A CN201710161582 A CN 201710161582A CN 106834903 A CN106834903 A CN 106834903A
- Authority
- CN
- China
- Prior art keywords
- graphite
- mould
- cast iron
- composite material
- iron
- Prior art date
- 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.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/02—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
- B22C1/14—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives for separating the pattern from the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/06—Core boxes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
- B22C9/061—Materials which make up the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
- B22C9/067—Venting means for moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/02—Linings
Abstract
The present invention discloses a kind of composite material mould, is made up of graphite and cast iron, and wherein graphite is core material, and cast iron is framed material, and graphite is 4 with the weight ratio of cast iron:1‑2:1.The graphite cast iron composite material mould, mould does not have phase transformation, and size is accurate, the convenient not sticking to mould of depanning.And the softer cutting of graphite is easy, the speed for making mould is greatly improved.
Description
Technical field
The present invention relates to the technical field of mould, more particularly to a kind of composite material mould and preparation method thereof.
Background technology
Conventional mold materials are chromium pick copper or gray iron material at present, using the material of copper, because the heat transfer of copper is imitated
Rate is high, and the temperature of mould can effectively control the long service life can to reach 20,000 moulds, but price is very expensive.Gray iron material valency
Lattice are cheap, but short life, are also easy to produce heat fatigue, and die cavity is used for multiple times the phenomenon for having cracking quickly, and General Life is in 1000-2000
It is secondary.
The content of the invention
It is an object of the invention to provide a kind of composite material mould and preparation method thereof, in the above-mentioned prior art problem of solution
One or more.
A kind of composite material mould that the present invention is provided, is made up of graphite and cast iron, and graphite is core material, and cast iron is mould
Frame material, graphite is 4 with the mass ratio of cast iron:1-2:1.Graphite (graphite) is a kind of crystalline carbon, hardness 1.5, fusing point
3652 DEG C, 4827 DEG C of boiling point, matter is soft, there is soapy feeling, electrically conductive, and chemical property torpescence is corrosion-resistant, is difficult with acid, alkali etc. anti-
Should, thermal conductivity 129W/M-K is 3 times of cast iron.Therefore, core rod is done with graphite material, energy high temperature resistant is corrosion-resistant, when molten iron injection
Can quickly conduct heat after mould, and graphite is nonmetallic, and metal do not infiltrate, and forms natural demoulding effect, mould
Life-span greatly increase.Cast iron is mainly used in increasing mould strength during matched moulds as framed material.The weight ratio of graphite and cast iron
For the optimal proportion that many experiments are summed up so that it plays graphite and exists while increased mould strength, to greatest extent
Effect in mould.
In some embodiments, the composition of cast iron includes carbon 2.7%-4.0%, silicon 1.0-3.0%, phosphorus by quality ratio
Less than 0.1%, sulphur is less than 0.025%, and remaining is iron.The technical program is preferred cast iron materials, and it can be more with graphite material
Good is compound, it is not easy to come off.
In some embodiments, graphite is powdered, and its granular size is 5-500 microns.
In some embodiments, graphite is graphene particles.Preferred graphene particles, due to its monomolecular knot
Structure, intensity is also high while its is flexible, can strengthen the intensity of composite die.
A kind of preparation method of composite material mould, comprises the following steps：
S1, powdered graphite is placed in sand mo(u)ld；
S2, cast iron is melted at 1400-1500 DEG C, 1350-1380 DEG C of molten iron is injected into sand mo(u)ld, coated graphite material
Material, forms mould material；
S3, be cooled to room temperature after, mould material is cut, obtain required die cavity.
Because the fusing point of graphite is 3652 DEG C, therefore when casting for 1350-1380 DEG C, graphite is not in showing for mucous membrane
As, and because the matter of graphite is soft, therefore the die cavity needed for carrying out cutting acquisition after cooling, and cast iron is used as framed material energy
Strengthen the intensity of mould, increase the life-span of mould.
Specific embodiment
The present invention is described in more detail below by implementation method.
A kind of composite material mould, is made up of graphite and cast iron, and graphite is core material, and cast iron is framed material, graphite
It is 4 with the mass ratio of cast iron:1-2:1.
Preferably, the composition of cast iron includes carbon 2.7%-4.0% by quality ratio, and silicon 1.0-3.0%, phosphorus is less than 0.1%,
Sulphur is less than 0.025%, and remaining is iron.
Preferably, graphite is powdered, and its granular size is 5-500 microns.
Preferably, graphite is graphene particles.
A kind of preparation method of composite material mould, comprises the following steps：
S1, powdered graphite is placed in sand mo(u)ld；
S2, cast iron is melted at 1400-1500 DEG C, 1350-1380 DEG C of molten iron is injected into sand mo(u)ld, coated graphite material
Material, forms mould material；
S3, be cooled to room temperature after, mould material is cut, obtain required die cavity.
Case study on implementation 1：
S1, the Graphite particle powder that 500g, particle diameter are 5 microns is placed in sand mo(u)ld；
S2,250g cast irons are melted at 1400 DEG C, the composition of its medium cast iron includes carbon 2.7%, silicon by weight
1.0%, phosphorus 0.01%, sulphur 0.015%, remaining is iron, and 1350 DEG C of molten iron is injected into sand mo(u)ld, and coated graphite material forms mould
Material；
S3, be cooled to room temperature after, mould material is cut, obtain required die cavity.
Case study on implementation 2：
S1, the Graphite particle powder that 1000g, particle diameter are 500 microns is placed in sand mo(u)ld；
S2,250g cast irons are melted at 1500 DEG C, the composition of its medium cast iron includes carbon 4%, silicon by weight
3.0%, phosphorus 0.02%, sulphur 0.005%, remaining is iron, and 1380 DEG C of molten iron is injected into sand mo(u)ld, and coated graphite material forms mould
Material；
S3, be cooled to room temperature after, mould material is cut, obtain required die cavity.
Case study on implementation 3：
S1, the graphene particles powder that 700g, particle diameter are 200 microns is placed in sand mo(u)ld；
S2,250g cast irons are melted at 1350 DEG C, the composition of its medium cast iron includes carbon 3%, silicon by weight
2.0%, phosphorus 0.001%, sulphur 0.0015%, remaining is iron, and 1370 DEG C of molten iron is injected into sand mo(u)ld, and coated graphite material is formed
Mould material；
S3, be cooled to room temperature after, mould material is cut, obtain required die cavity.
Graphite-cast iron composite material mould in the embodiment that the present invention is provided, mould does not have phase transformation, and size is accurate,
The convenient not sticking to mould of depanning.And the softer cutting of graphite is easy, the speed for making mould is greatly improved.
Presented above is only preferred embodiment of the invention, it is noted that to those skilled in the art, not
On the premise of departing from the invention design, various modifications and improvements can be made, these also should be regarded as protection of the invention
Within the scope of.
Claims (5)
1. a kind of composite material mould, it is characterised in that be made up of graphite and cast iron, the graphite is core material, the casting
Iron is framed material, and the graphite is 4 with the mass ratio of cast iron:1-2:1.
2. a kind of composite material mould according to claim 1, it is characterised in that the composition of the cast iron is by quality ratio
Including carbon 2.7%-4.0%, silicon 1.0-3.0%, phosphorus is less than 0.1%, and sulphur is less than 0.025%, and remaining is iron.
3. a kind of composite material mould according to claim 1, it is characterised in that described graphite be it is powdered, its
Grain size is 5-500 microns.
4. a kind of composite material mould according to claim 1, it is characterised in that described graphite is graphene particles.
5. the preparation method of a kind of composite material mould being based on described in claim 1, it is characterised in that comprise the following steps：
S1, powdered graphite is placed in sand mo(u)ld；
S2, cast iron is melted at 1400-1500 DEG C, 1350-1380 DEG C of molten iron is injected into sand mo(u)ld, coated graphite material, shape
Into mould material；
S3, be cooled to room temperature after, mould material is cut, obtain required die cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710161582.5A CN106834903A (en) | 2017-03-17 | 2017-03-17 | A kind of composite material mould and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710161582.5A CN106834903A (en) | 2017-03-17 | 2017-03-17 | A kind of composite material mould and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106834903A true CN106834903A (en) | 2017-06-13 |
Family
ID=59143673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710161582.5A Pending CN106834903A (en) | 2017-03-17 | 2017-03-17 | A kind of composite material mould and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106834903A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108796176A (en) * | 2018-08-15 | 2018-11-13 | 江苏大学 | A method of induction spheroidal graphite cast-iron in-situ authigenic graphene |
| CN112916812A (en) * | 2021-01-29 | 2021-06-08 | 焦作市迈科冶金机械工程技术咨询有限公司 | Ultra-thick rail type iron alloy molten iron casting equipment |
| CN113560497A (en) * | 2021-06-18 | 2021-10-29 | 洛阳双瑞精铸钛业有限公司 | Low-cost high-efficiency manufacturing method of thin-wall titanium alloy casting |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316538A (en) * | 2001-01-12 | 2001-10-10 | 太原理工大学 | Shaped dual-layer graphite-cast iron mould |
| CN103464996A (en) * | 2013-09-25 | 2013-12-25 | 张家港保税区冠祥贸易有限公司 | Die production process |
| CN105817605A (en) * | 2016-04-28 | 2016-08-03 | 西华大学 | Functionally-graded wear-resistant iron-based composite material and preparation method thereof |
-
2017
- 2017-03-17 CN CN201710161582.5A patent/CN106834903A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316538A (en) * | 2001-01-12 | 2001-10-10 | 太原理工大学 | Shaped dual-layer graphite-cast iron mould |
| CN103464996A (en) * | 2013-09-25 | 2013-12-25 | 张家港保税区冠祥贸易有限公司 | Die production process |
| CN105817605A (en) * | 2016-04-28 | 2016-08-03 | 西华大学 | Functionally-graded wear-resistant iron-based composite material and preparation method thereof |
Non-Patent Citations (5)
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| 吕智，郑超，莫时雄: "《超硬材料工具设计与制造》", 31 January 2010, 冶金工业出版社 * |
| 周文英: "《导热高分子材料》", 30 April 2014, 国防工业出版社 * |
| 李书常，李明珠: "《模具材料及强化处理》", 31 May 2010, 机械工业出版社 * |
| 杨莉，郭国林: "《工程材料及成形技术基础》", 30 April 2016, 西安电子科技大学出版社 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108796176A (en) * | 2018-08-15 | 2018-11-13 | 江苏大学 | A method of induction spheroidal graphite cast-iron in-situ authigenic graphene |
| CN112916812A (en) * | 2021-01-29 | 2021-06-08 | 焦作市迈科冶金机械工程技术咨询有限公司 | Ultra-thick rail type iron alloy molten iron casting equipment |
| CN113560497A (en) * | 2021-06-18 | 2021-10-29 | 洛阳双瑞精铸钛业有限公司 | Low-cost high-efficiency manufacturing method of thin-wall titanium alloy casting |
| CN113560497B (en) * | 2021-06-18 | 2023-02-24 | 洛阳双瑞精铸钛业有限公司 | Low-cost high-efficiency manufacturing method of thin-wall titanium alloy casting |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170613 |
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| RJ01 | Rejection of invention patent application after publication |