CN105436453B - A kind of manufacturing process of composite material mould - Google Patents
A kind of manufacturing process of composite material mould Download PDFInfo
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- CN105436453B CN105436453B CN201410434155.6A CN201410434155A CN105436453B CN 105436453 B CN105436453 B CN 105436453B CN 201410434155 A CN201410434155 A CN 201410434155A CN 105436453 B CN105436453 B CN 105436453B
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- mould
- outer mold
- composite material
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- graphite
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Abstract
The invention discloses a kind of composite material mould and its manufacturing process, described composite material mould includes interior mould and outer mold, provided with one layer of graphite linings between described interior mould and outer mold.Compared with prior art, simple in construction, implementation cost of the invention is low, and effect is obvious.Using the outer mold and interior mould of composite material mould, in preheating, interior mould expansion ratio outer mold is big, graphite slurry is smeared in internal model outer wall, when pre- hot extrusion, the gap that graphite slurry can be filled up between inside and outside mould, and further sintering forms graphite linings, make to fit between outer mold and interior mould even closer, because graphite linings have good thermal conductivity, heat conduction is uniform between making inside and outside mould, and then making the blank total quality produced unanimously, percent defective and deformation rate are substantially reduced caused by inhomogeneous cooling.
Description
Technical field
The present invention relates to a kind of composite material mould and its manufacturing process, belong to casting tooling device field.
Background technology
Water-cooled metal mould centrifugal casting production cylinder jacket has the advantages that efficiency high, cast structure are fine and close, and in cylinder jacket
Telescopic composite material mould, the forming process of conventional bushing-type composite material mould, directly by internal model are used manufacturing enterprise more
Tool is assemblied in outer mold, when centre spinning cylinder cover starts, and 400-450 DEG C of preheating is carried out to mould, and mould heating expands, by
Larger in the heating expansion of interior mould, in warm, internal model produces certain magnitude of interference with external mold, yet with external mold
Wall, internal model outer wall circularity and straightness error problem in process, usually make the binding face between interior mould and outer mold
Impossible whole interference, and locally producing certain gap（Air）, therefore, cylinder is produced in water-cooled metal mould centrifugal casting
During set, these local gaps are the non-conductor of heat, often make liner blank Local cooling slow, so as to cause blank total quality
It is inconsistent, while causing the raising of foundary loss, machining distortion waste product etc..
The content of the invention
The object of the invention, which is that, overcomes that above-mentioned not enough there is provided a kind of thermal conductivity is uniform, simple in construction, production blank quality
The low composite material mould of stable, percent defective.
To achieve the above object, the technical scheme is that：
A kind of composite material mould and its manufacturing process, described composite material mould include interior mould and outer mold, institute
Provided with one layer of graphite linings between the interior mould and outer mold stated.
Further, as a kind of preferred scheme, described outer mold material is HT250, and the material of described interior mould is
21CrMo10 steel.
Further, as a kind of preferred scheme, the thickness of described graphite linings is 0.02~0.1mm.
A kind of manufacturing process of composite material mould, step is as follows：
1）, produce the interior mould and matched outer mold that cylinder jacket is cast with centrifugal method；
2）, in interior outer mold wall apply the thick graphite slurry of one layer of 0.1~0.5mm, interior mould is assemblied in outer mold；
3）, mould is preheated, preheating temperature be 400~450 DEG C, mould heating expansion, extruded anisotropic graphite slurry；
4th, further sintering forms graphite linings to graphite slurry in preheating and extrusion process.
Further, as a kind of preferred scheme, described graphite slurry is pure water, binding agent and graphite powder are mixed
The mixture of formation.
Further, as a kind of preferred scheme, the thickness of described graphite linings is 0.02~0.1mm.
Compared with prior art, simple in construction, implementation cost of the invention is low, and effect is obvious.Utilize composite material mould
Outer mold and interior the mould interior mould expansion ratio outer mold in preheating are big, graphite slurry are smeared in internal model outer wall, in pre- hot extrusion
When pressure, the gap that graphite slurry can be filled up between inside and outside mould, and further sintering forms graphite linings, makes outer mold
Fitted between interior mould even closer, be that heat conduction is uniform between inside and outside mould due to the good thermal conductivity of graphite linings, and then
Make the blank total quality produced unanimously, percent defective and deformation rate are substantially reduced caused by inhomogeneous cooling.
Brief description of the drawings
Fig. 1 is the structure and production process schematic diagram of the present invention.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of composite material mould, described composite material mould includes interior mould 2 and outer mold 1, institute
It is 0.02~0.1mm graphite linings 3 that a layer thickness is provided between the interior mould 2 and outer mold 1 stated.The material of outer mold 1 is HT250,
The material of described interior mould 2 is 21CrMo10 steel.
A kind of manufacturing process of composite material mould, step is as follows：
1）, produce the interior mould 2 and matched outer mold 1 that cylinder jacket is cast with centrifugal method；
2）, in the interior outer wall of mould 2 apply the thick graphite slurry of one layer of 0.1~0.5mm, graphite slurry is pure water, binding agent
The mixture to be formed is mixed with graphite powder, interior mould 2 is assemblied in outer mold 1；
3）, mould is preheated, preheating temperature be 400~450 DEG C, mould heating expansion, extruded anisotropic graphite slurry；
4）, graphite slurry in preheating and extrusion process further sintering form graphite linings 3.
In actual production, before the production of centre spinning cylinder cover blank, first one layer of 0.1~0.5mm is applied in the interior outer wall of mould 2
Thick graphite slurry, then interior mould 2 is assemblied in outer mold 1, then mould is preheated, preheating temperature 400~450
DEG C, mould heating expansion because the heating expansion of interior mould 2 is larger, therefore is extruded graphite slurry, and in warm
Further sintering, forms the thick graphite linings 3 of one layer of 0.02~0.1mm between interior mould 2 and outer mold 1；Centrifugal casting is produced
When, melted high temperature iron liquid is transferred in pouring cup 4, then pouring basin 5 is poured into by pouring cup, molten iron enters by pouring basin 5
The interior mould 2 rotated at a high speed, iron liquid forms liner blank under the influence of centrifugal force, then outer mold 1 is carried out by swashing water pipe 6
Cooling, the heat of blank is conducted to middle graphite linings 3 further conduct due to conduction of heat by interior mould 2 to outer mold
1, the cooling water sprayed by swashing water pipe 6 is taken away, and finally, cast blank is by pushing away cylinder disk ejection die.In the process, heat transfer
Uniformity directly affects the uniformity and foundary loss rate and machining percent defective of liner blank total quality.
Claims (2)
1. a kind of manufacturing process of composite material mould, it is characterised in that：Step is as follows：
1）, produce the interior mould and matched outer mold that cylinder jacket is cast with centrifugal method；
2）, in interior outer mold wall apply the thick graphite slurry of one layer of 0.1~0.5mm, interior mould is assemblied in outer mold；
3）, mould is preheated, preheating temperature be 400~450 DEG C, mould heating expansion, extruded anisotropic graphite slurry；
4）, graphite slurry in preheating and extrusion process further sintering form graphite linings.
2. the manufacturing process of composite material mould according to claim 1, it is characterised in that：Described graphite slurry is pure
Water purification, binding agent and graphite powder mix the mixture to be formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410434155.6A CN105436453B (en) | 2014-08-29 | 2014-08-29 | A kind of manufacturing process of composite material mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410434155.6A CN105436453B (en) | 2014-08-29 | 2014-08-29 | A kind of manufacturing process of composite material mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105436453A CN105436453A (en) | 2016-03-30 |
| CN105436453B true CN105436453B (en) | 2017-08-04 |
Family
ID=55547335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410434155.6A Active CN105436453B (en) | 2014-08-29 | 2014-08-29 | A kind of manufacturing process of composite material mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105436453B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5772761A (en) * | 1980-10-22 | 1982-05-07 | Kubota Ltd | Casting method for double flanged pipe |
| CN1759956A (en) * | 2005-10-27 | 2006-04-19 | 西安建筑科技大学 | Method for manufacturing bimetal composite wear resistant tube through centrifugal molding double fluids |
| CN100534721C (en) * | 2006-12-13 | 2009-09-02 | 殷凤高 | Metal bond superhard materials abrasive tool radial hot pressing method and abrasive tool thereof |
| CN201455223U (en) * | 2009-07-27 | 2010-05-12 | 河南省中原内配股份有限公司 | Combined centrifugal casting mold |
| CN202070738U (en) * | 2011-04-26 | 2011-12-14 | 海盐鼎盛机械有限公司 | Centrifugal casting compound die |
| CN202097378U (en) * | 2011-05-26 | 2012-01-04 | 成都银河动力有限公司 | Centrifugal casting cylinder jacket combination mould |
| CN102514121A (en) * | 2011-12-07 | 2012-06-27 | 常熟市东涛金属复合材料有限公司 | Composite metal mold |
| CN103357843A (en) * | 2012-03-26 | 2013-10-23 | 卓然(靖江)设备制造有限公司 | Novel centrifugal tube casting cylinder |
-
2014
- 2014-08-29 CN CN201410434155.6A patent/CN105436453B/en active Active
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| Publication number | Publication date |
|---|---|
| CN105436453A (en) | 2016-03-30 |
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Effective date of registration: 20160830 Address after: Mengzhou City, Henan province 454750 Industry Agglomeration District Huaihai Road No. 69, ZYNP group Limited by Share Ltd Applicant after: Central Plains Nei Pei Group Plc Address before: Xi Guo Zhen Mengzhou city 454750 Henan city of Jiaozuo province Henan province ZYNP Casting Co. Ltd. Applicant before: Henan ZYNP Casting Co., Ltd. |
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