CN109332647A - Charging barrel of die casting machine and production method - Google Patents
Charging barrel of die casting machine and production method Download PDFInfo
- Publication number
- CN109332647A CN109332647A CN201811519510.4A CN201811519510A CN109332647A CN 109332647 A CN109332647 A CN 109332647A CN 201811519510 A CN201811519510 A CN 201811519510A CN 109332647 A CN109332647 A CN 109332647A
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- Prior art keywords
- barrel
- chamber lining
- ceramic chamber
- ceramic
- metal
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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
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/30—Accessories for supplying molten metal, e.g. in rations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Charging barrel of die casting machine, including barrel ontology have molten metal entrance on barrel, barrel ontology is manufactured using aluminum-resistant liquid oxidation Heat-resistant Ductile Iron Containing, there are high tenacity, ceramic chamber lining wear-resisting, corrosion-resistant, resistant to high temperature in barrel inner cavity, and ceramic chamber lining is combined as a whole with barrel base metal；Barrel ontology hardness HB200-250；Ceramic chamber lining hardness >=HVo1000.There is the coat of metal of 10-15mm thickness at barrel inlet.The present invention is by metal material and two kinds of ceramic material materials of different nature using on one part.One layer of carbon fiber screen cloth is accompanied in ceramic chamber lining, greatly enhances the intensity and toughness of ceramics, and the cost of material is low by the present invention, and difficulty of processing is small, and barrel will not be aoxidized by aluminum water, substantially increases wearability, corrosion resistance, high temperature resistance, service life raising several times.The production cost for substantially reducing die casting, improves efficiency, has saved resource.
Description
Technical field
The present invention relates to charging barrel of die casting machine, while being related to the production method of the barrel.
Background technique
Present most of die casting machine manufacturers, charging barrel of die casting machine and spare parts and components are all made of H13 i.e. the one of Unite States Standard
Kind heat-resisting steel making, chemical component are that Cr5, Mo1.5, vanadium 1.0, Si1.5, Mn0.75, C0.3-0.45 system high alloy are heat-resisting
Material, finished product are heat-treated after processing, hardness HRC43-45.Inner surface nitriding layer, surface hardness are >=HVo900.
Have following several disadvantages using the barrel that above-mentioned material manufactures, first is that material cost is high, 2.5 ten thousand yuan of need per ton with
On.Second is that mechanical processing difficulty is big, processing charges is high.Third is that the barrel after processing, although passing through quenching treatment and surface nitrogen
Change processing, due to contacting use, reality with 680-750 DEG C of aluminum water or 1080-1150 DEG C of copper waters or 550 DEG C of zinc water for a long time
It is tempering slowly by barrel, to gradually reduce the initial hardness of barrel, the purpose of barrel long-time service is not achieved.Fourth is that
Although barrel is manufactured using alloy material, material its essential element in addition to alloying component is iron, and ferro element is for a long time and aluminum water
Contact, it is easy to be aoxidized by aluminum water, therefore cause barrel premature failure.It being easy to pull, service life reduces, use cost is high,
It was just broken with two months, waste of resource.Retrieve Chinese Patent Literatures, many inventors solve this technical problem, and use is cold
But the method to cool down, it is desirable to extend the service life of barrel.Publication number CN108672674A discloses a kind of charging barrel of die casting machine: material
Cylinder ontology is equipped with inner hole and pouring slot；Inner hole is in hollow cylindrical, and is suitable for containing the molten metal poured into from pouring slot；Inner hole
Inner wall is equipped with wear-resistant alloy layer；Due to being arranged wear-resistant alloy layer on the inner wall of inner hole, the wear-resisting property of inner hole inner wall is improved, from
And the service life of charging barrel of die casting machine is improved, entreprise cost is effectively reduced.
Summary of the invention
The technical problem to be solved by the present invention is to reduce the material cost of barrel, reduce difficulty of processing, prevent barrel by aluminium
Water oxygen improves enterprises production efficiency to extend the service life of barrel, reduces production cost.
The technical solution adopted by the present invention is that charging barrel of die casting machine, including barrel ontology, there is molten metal entrance on barrel,
Be characterized in that: barrel ontology is manufactured using aluminum-resistant liquid oxidation Heat-resistant Ductile Iron Containing, and there is high tenacity in barrel inner cavity, wear-resisting, resistance to
Burn into ceramic chamber lining resistant to high temperature, barrel base metal are combined as a whole with ceramic chamber lining；Barrel ontology hardness HB200-
250；Ceramic chamber lining hardness >=HVo1000.
There is the coat of metal of 10-15mm thickness at barrel inlet, prevents ceramic chamber lining from being touched at barrel inlet end by injection plunger
Wound.
The effective thickness of ceramic chamber lining is 3-6mm, and ceramic chamber lining appearance is equipped with well shape reinforcing rib.Enhance the intensity of insulator,
Keep ceramic jacket and metallic sheath castingin secured, prevents loosening of the insulator in iron set.
The production method of barrel first makes base in ceramic chamber lining, one layer of carbon fiber screen cloth is wrapped up on interior base, then in carbon fiber
The outer base of screen cloth appearance bonding ceramic chamber lining is tieed up, obtains ceramic chamber lining after sintering；Again ceramic chamber lining appearance brush one layer it is loose
Coating, 0.5-1.5mm of paint thickness guarantee there is shrinkage joint during metal material cooled and solidified；Barrel ontology and ceramic chamber lining
Using imbedding process, ceramic chamber lining is put into barrel chamber body, direct casting metal liquid makes ceramic chamber lining and metal sheet
Body castingin is secured.
Barrel bulk material aluminum-resistant liquid oxidation heat-proof nodular cast iron, mechanical strength reach 600MPa or more, hardness HB200-
250, more much better than than general ferrous material aluminum-resistant liquid oxidation, effect is obvious.But compared with ceramic material, there is a big difference.Pottery
Ceramic material hardness >=HVo1000 or more, can achieve 1200 DEG C or more using temperature, does not aoxidize, passes through to metal liquid
Are reached by 5.0MPam, barrel is fully achieved for ceramic material improvement and toughening, selected ceramic material, Fracture Toughness
Requirement.
The present invention has the positive effect that: the Common advantages due to combining ceramic material and metal material, realizes excellent
Gesture is complementary, and the charging barrel of die casting machine produced with this kind of method, wearability, corrosion resistance, high temperature resistance is any metal material
Incomparable.One layer of carbon fiber screen cloth is accompanied in ceramic chamber lining, greatly enhances the intensity and toughness of ceramics, improves making for ceramics
With reliability, semi-permanent mould charging barrel of die casting machine is deserved to be called, service life improves several times than existing barrel.The present invention substantially reduces
The production cost of die casting, improves efficiency, has saved resource.Creatively by two kinds of roots of metal material and nonmetallic materials
This material application of different nature on one part, opens the beginning of casting castingin ceramic process.
Detailed description of the invention
Fig. 1 is barrel assembly stereoscopic schematic diagram:
Fig. 2 is diagrammatic cross-section of the present invention；
Fig. 3 is ceramic chamber lining structural schematic diagram.
In figure: 1 barrel ontology, 2 ceramic chamber linings, 3 molten metal entrances, 4 injection plungers, 5 coat of metal.
Specific embodiment
From fig. 1, it can be seen that charging barrel of die casting machine is cylindrical shape, including barrel ontology 1, there are molten metal entrance 3, barrel on the upside of barrel
There is injection plunger 4 in right part.The present invention is using 2015103622576 aluminum-resistant liquid oxidation Heat-resistant Ductile Iron Containing of patent No. manufacture material
Cylinder ontology 1, barrel inner cavity are equipped with high tenacity, wear-resisting, corrosion-resistant, resistant to high temperature ceramic chamber lining 2, ceramic chamber lining and barrel ontology gold
Category is combined as a whole；Barrel ontology hardness HB200-250；Ceramic material hardness >=HVo1000.
There is the coat of metal 5 of 10-15mm thickness in 1 injection plunger inlet of barrel ontology, prevents ceramic chamber lining 2 from entering in barrel
It is damaged by injection plunger 4 at mouth end.According to the different size of barrel, the effective thickness of ceramic chamber lining 2 is 3-6mm, outside ceramic chamber lining 2
Table is groined type reinforcing rib.
The method that ceramic chamber lining was selected and prepared to ceramic material is as follows.
First make ceramic chamber lining in base, on interior base wrap up one layer of carbon fiber screen cloth, further enhance ceramics intensity and
Toughness improves the use reliability of ceramics.The base outside carbon fiber screen cloth appearance bonding ceramic chamber lining again, obtains ceramic liner after sintering
Set.The present invention uses special ceramic material, should reach following performance requirement, Fracture Toughness >=5.0MPam or more, hardness
HVo1000 or more, 1200 DEG C of operating temperature or more.Tensile strength 500MPa or more, thermal expansion coefficient is low, and thermal stability is good.Together
When to have when being contacted with high temperature metal liquid, have certain deformability, anti-anxious heat.The formula material of special ceramic material is mixed
Type is made, fired processing technology produces barrel ceramic chamber lining 2.
In order to guarantee that ceramic chamber lining is influenced during high temperature action and metal liquid cooled and solidified by stress, pottery is racked
Insulator need to brush one layer of coating loosely in ceramic chamber lining outer surface, and paint thickness is decided by that different metal material is cooling, solidifying
Gu, shrinkage generally in 0.5-1.5mm guarantee there is shrinkage joint during metal material cooled and solidified.Shrinkage joint should not be too large,
Crossing conference makes ceramic chamber lining generate loosening in metal-coating, too small that ceramic chamber lining can be racked under the action of shrinkage stress.
After entire barrel makes, can contact with metal liquid there are also seldom part and metal liquid inlet, therefore selection
2015103622576 aluminum-resistant liquid oxidation Heat-resistant Ductile Iron Containings, because die casting aluminum component accounts for entire 80% or more die casting.It is this
Material shrinkage in High-temperature cooling process of setting is fewer, relatively produced by internal stress it is also small, to protecting insulator not to be squeezed and broken
It is beneficial, while thermal stability is good.
Barrel casting forming method and common spheroidal graphite cast-iron forming method are similar, and barrel ontology 1 and ceramic chamber lining 2 use
Ceramic chamber lining is put into 1 inner cavity of barrel ontology by imbedding process, and direct casting metal liquid makes ceramic chamber lining 2 and metal body
Castingin is secured.After barrel blank makes, the outer surface of first roughing barrel metal material part, there are certain grinding allowances；
Then barrel inner hole, that is, 2 position of ceramic chamber lining is refined, all grinding finishes to inner hole, after reaching the requirement of drawing size, uses expansion set
Fixed barrel inner hole refines barrel outer rim and its end face again, and the requirement of layout design size is fully achieved,
Inspection of being subject to is qualified, and such novel die casting machine barrel is just made into.
This invention expands application prospect also by further expansion ceramic material in the application range of machinery industry.It is all according to
Special ceramic material and metal material are combined as a whole according to present inventive concept, is applied to machinery industry and makes components, such as
Internal combustion engine cylinder jacket etc. ought to be covered by the present patent application.
Claims (4)
1. charging barrel of die casting machine, including barrel ontology (1), barrel upside has molten metal entrance (3), it is characterised in that: barrel ontology
(1) it is manufactured using aluminum-resistant liquid oxidation Heat-resistant Ductile Iron Containing, barrel inner cavity flexible is strong, pottery wear-resisting, corrosion-resistant, resistant to high temperature
Ceramic bush (2), barrel base metal are combined as a whole with ceramic chamber lining；Barrel ontology hardness HB200-250；Ceramic chamber lining is hard
Degree >=HVo1000.
2. barrel according to claim 1, characterized in that there is the metal of 10-15mm thickness in barrel front end injection plunger inlet
Protective layer (5) prevents ceramic chamber lining (2) from being damaged by injection plunger (4).
3. barrel according to claim 1, characterized in that the effective thickness of ceramic chamber lining (2) is 3-6mm, ceramic chamber lining
One layer of carbon fiber screen cloth is inside accompanied, ceramic chamber lining appearance sets well shape shape reinforcing rib.
4. the production method of charging barrel of die casting machine described in claim 1, which is characterized in that first make ceramic chamber lining (2) interior base, inside
One layer of carbon fiber screen cloth, then the base outside carbon fiber screen cloth appearance bonding ceramic chamber lining are wrapped up on base, obtain ceramic chamber lining after sintering
(2)；One layer of loose coating is brushed in ceramic chamber lining appearance again, 0.5-1.5mm of paint thickness guarantees that metal material is cooling solidifying
Gu having shrinkage joint in the process；Barrel ontology (1) and ceramic chamber lining (2) use imbedding process, and ceramic chamber lining is put into barrel ontology
In inner cavity, direct casting metal liquid keeps ceramic chamber lining and metal body castingin secured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811519510.4A CN109332647A (en) | 2018-12-12 | 2018-12-12 | Charging barrel of die casting machine and production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811519510.4A CN109332647A (en) | 2018-12-12 | 2018-12-12 | Charging barrel of die casting machine and production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109332647A true CN109332647A (en) | 2019-02-15 |
Family
ID=65303891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811519510.4A Withdrawn CN109332647A (en) | 2018-12-12 | 2018-12-12 | Charging barrel of die casting machine and production method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109332647A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021010931A (en) * | 2019-07-08 | 2021-02-04 | 東京窯業株式会社 | Die-casting sleeve |
| CN113649772A (en) * | 2021-08-17 | 2021-11-16 | 江苏三条鱼新材料科技有限公司 | Production process of high-temperature structural ceramic/metal composite pipe for aluminum alloy die casting machine |
| CN113653859A (en) * | 2021-08-17 | 2021-11-16 | 江苏三条鱼新材料科技有限公司 | Production process of high-temperature structural ceramic material pipe for aluminum alloy die casting machine |
| CN113694565A (en) * | 2021-09-02 | 2021-11-26 | 上海盛普机械制造有限公司 | Defoaming device with sectional type screw and ceramic bushing and defoaming method thereof |
| CN114247878A (en) * | 2021-12-24 | 2022-03-29 | 马鞍山市益江高温陶瓷制造有限公司 | Immersion type water gap of once-formed full-lining composite plate blank and manufacturing method thereof |
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| CN1150770A (en) * | 1994-06-14 | 1997-05-28 | 株式会社东芝 | Sleeve for die carting machines and die casting machine using the same |
| CN1758971A (en) * | 2003-03-27 | 2006-04-12 | 株式会社久保田 | Heat insulation plunger sleeve for die casting machine |
| CN1978095A (en) * | 2005-12-02 | 2007-06-13 | 东芝机械株式会社 | Melt supply pipe for aluminum die casting and method for producing the same |
| CN101410205A (en) * | 2006-03-24 | 2009-04-15 | 东芝机械株式会社 | Melt feed pipe for aluminum die casting |
| JP2009195935A (en) * | 2008-02-20 | 2009-09-03 | Daihatsu Motor Co Ltd | Plunger sleeve and manufacturing method therefor |
| CN102941327A (en) * | 2012-11-30 | 2013-02-27 | 莱芜钢铁集团有限公司 | Flexible continuously cast water gap and manufacturing method thereof |
| CN108698120A (en) * | 2016-02-15 | 2018-10-23 | 日立金属株式会社 | Die casting sleeve and preparation method thereof |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1150770A (en) * | 1994-06-14 | 1997-05-28 | 株式会社东芝 | Sleeve for die carting machines and die casting machine using the same |
| CN1758971A (en) * | 2003-03-27 | 2006-04-12 | 株式会社久保田 | Heat insulation plunger sleeve for die casting machine |
| CN1978095A (en) * | 2005-12-02 | 2007-06-13 | 东芝机械株式会社 | Melt supply pipe for aluminum die casting and method for producing the same |
| CN101410205A (en) * | 2006-03-24 | 2009-04-15 | 东芝机械株式会社 | Melt feed pipe for aluminum die casting |
| JP2009195935A (en) * | 2008-02-20 | 2009-09-03 | Daihatsu Motor Co Ltd | Plunger sleeve and manufacturing method therefor |
| CN102941327A (en) * | 2012-11-30 | 2013-02-27 | 莱芜钢铁集团有限公司 | Flexible continuously cast water gap and manufacturing method thereof |
| CN108698120A (en) * | 2016-02-15 | 2018-10-23 | 日立金属株式会社 | Die casting sleeve and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021010931A (en) * | 2019-07-08 | 2021-02-04 | 東京窯業株式会社 | Die-casting sleeve |
| JP7141366B2 (en) | 2019-07-08 | 2022-09-22 | 東京窯業株式会社 | sleeve for die casting |
| CN113649772A (en) * | 2021-08-17 | 2021-11-16 | 江苏三条鱼新材料科技有限公司 | Production process of high-temperature structural ceramic/metal composite pipe for aluminum alloy die casting machine |
| CN113653859A (en) * | 2021-08-17 | 2021-11-16 | 江苏三条鱼新材料科技有限公司 | Production process of high-temperature structural ceramic material pipe for aluminum alloy die casting machine |
| CN113694565A (en) * | 2021-09-02 | 2021-11-26 | 上海盛普机械制造有限公司 | Defoaming device with sectional type screw and ceramic bushing and defoaming method thereof |
| CN113694565B (en) * | 2021-09-02 | 2023-02-21 | 上海盛普流体设备股份有限公司 | Defoaming device with sectional type screw and ceramic bushing and defoaming method thereof |
| CN114247878A (en) * | 2021-12-24 | 2022-03-29 | 马鞍山市益江高温陶瓷制造有限公司 | Immersion type water gap of once-formed full-lining composite plate blank and manufacturing method thereof |
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Application publication date: 20190215 |