CN103831418A - Die for gravity casting and low-pressure casting - Google Patents
Die for gravity casting and low-pressure casting Download PDFInfo
- Publication number
- CN103831418A CN103831418A CN201210470463.5A CN201210470463A CN103831418A CN 103831418 A CN103831418 A CN 103831418A CN 201210470463 A CN201210470463 A CN 201210470463A CN 103831418 A CN103831418 A CN 103831418A
- Authority
- CN
- China
- Prior art keywords
- casting
- die body
- cylinder
- dead head
- bed die
- 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
Links
Images
Abstract
The invention relates to a die for gravity casting and low-pressure casting. The die comprises an upper die body, a lateral die body, a bottom die body and a center dead head. The upper die body, the lateral die body and the bottom die body are combined to form a hollow cavity. A casting opening is formed in the opening position, connected to the upper die body, of the center dead head. A pressurization device is further arranged on the center dead head and is composed of a cylinder body, a cylinder cover and a gas tube. The cylinder body is connected and communicated with the center dead head. The gas tube is arranged on the cylinder cover to enable a cylinder outer cavity to be communicated with a cylinder inner cavity. An ejector rod is further arranged on the upper die body. A bottom die holder is further arranged on the bottom die body and/or the lateral die body. The pressurization device is additionally arranged on the center dead head, a pouring gate is enlarged while the volume is increased, casting is convenient, and filling is rapid; by inputting gas to conduct pressurization and pressure maintaining, density and evenness of metal tissues of products are improved, and mechanical performance and inner quality of a casting are better. A product blank can be rapidly disengaged from the die through the ejector rod, labor and time are saved, the weight of the dead head is lighter due to the casting, required casting liquid is reduced, and energy consumption and raw material burning loss are reduced.
Description
Technical field
The invention belongs to the casting mold of coloured precision casting production technical field, specifically a kind of gravity low pressure casting casting mold of holding concurrently.
Background technology
Permanent mold casting is the modern crafts of making casting hollow casting mold mould of heat-resisting alloy steel.Metal mold both can adopt gravitational casting, also can adopt compression casting or counter-pressure casting.Gravitational casting refers to that molten metal injects the technique of casting mold under terrestrial gravitation effect.Low pressure casting refers on the molten soup surface of airtight maintenance stove and applies air pressure or inert gas pressure, melts soup by soaking rising to stalk in molten soup, is pressed in the mould of the top being connected with stove.Molten soup is slowly to start filling from the bottom of die cavity, keeps the pressure after coagulation of a period of time.Counter-pressure casting claims again back-pressure casting, pressure reduction casting.It is a kind of casting method deriving from the basis of low pressure casting.With the difference of low pressure casting be at a casting mold outer cover seal closure, inside fill Compressed Gas, make under the certain pressure of casting mold in gas.When liquid metal filling, make the pressure of gas in holding furnace be greater than the pressure of gas in casting mold, that realizes molten metal during as low pressure casting fills type, pressurize and supercharging.But now foundry goods is crystallization and freezing under higher pressure-acting, so can ensure to obtain the foundry goods that density is higher.With the difference of low pressure casting be at a casting mold outer cover seal closure, inside fill Compressed Gas, make under the certain pressure of casting mold in gas.When liquid metal filling, make the pressure of gas in holding furnace be greater than the pressure of gas in casting mold, that realizes molten metal during as low pressure casting fills type, pressurize and supercharging.Gravitational casting relative price is low, but labour intensity is larger, and gold picture is organized not fine and close, and the fluctuation of product inherent quality is larger, and properties of product are general.Low pressure casting casting utilization rate is high.Owing to there is no rising head and running channel, cast gate is less, the perfection of the low acquisition foundry goods of cost.Easily realize automation, can many operation, multiple operation operation.Be not subject to the impact of operator's qualification.The scope of application of material is wide.But the free degree of cast gate scheme is little, and casting cycle is long, and productivity is poor.In order to maintain directional solidification and molten soup mobility, mould temperature is higher, and setting rate is slow.Thicker near organizing of cast gate, the mechanical performance of lower profile is not high.Need comprehensively tight temperature, stress management.The mechanical performance of the foundry goods counter-pressure casting foundry goods of counter-pressure casting can increase substantially, but equipment volume is large, cost is expensive, and maintenance and production cost are high; Product mold is manufactured complexity, cost is high; Be not suitable for the production model of small lot.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, the gravity that provide that a kind of labour intensity is low, product inherent quality is stable, is applicable to the production of the small lot low-pressure casting process casting mold of holding concurrently.
According to a kind of gravity provided by the invention low pressure casting casting mold of holding concurrently, it comprises patrix, Bian Mo, bed die, center riser, patrix, Bian Mo, bed die forms corresponding hollow molded cavity according to different foundry goods combination of shapes, the opening part that center riser is connected to patrix forms casting gate, the opening of patrix is comparatively commonly arranged on center or paracentral position, in center riser, be also provided with pressue device, it is by cylinder body, cylinder cap, tracheae composition, cylinder body and center riser connect, cylinder cap closed cylinder, tracheae is arranged on cylinder cap and is communicated with outside cylinder and cylinder inner chamber body, be used for inputting gas-pressurized,
Its patrix of said structure casting mold can also be provided with the hole that vertical direction is communicated with hollow molded cavity and be arranged on the push rod being slidably matched with it in this hole, for product blank is separated with casting mold;
Said structure casting mold can also be provided with bed die seat, and it connects support bed die or limit mould or bed die edged mould.
According to a kind of gravity provided by the invention low pressure casting casting mold of holding concurrently, have the following advantages with respect to prior art tool: in center riser, added pressue device, cast gate is relative with volume to be expanded, cast more convenient, molten metal to fill type faster, after cylinder cap sealing again by tracheae input gas pressurized, pressurize can improve product gold as dense structure's property and uniformity, improves the mechanical performance of foundry goods, ensures that product inherent quality stablizes.Having increased push rod separates easily with quick product blank with casting mold, reduce labour intensity, enhance productivity, and that the product blank casting out has reduced rising head quality is lighter, required founding liquid also reduces, reduce the scaling loss of energy consumption and raw material, bed die seat has been set and improves the stable and bearing capacity of casting mold structure, made the production model that manufacture, maintenance, production cost are lower, be more applicable to small lot.
Brief description of the drawings:
Fig. 1 is existing gravitational casting casting mold schematic diagram
Fig. 2 is the gravity of the present invention low pressure casting casting mold schematic diagram of holding concurrently.
Detailed description of the invention:
Below in conjunction with embodiment, the present invention is further illustrated, but the present invention is also not limited only to the content of embodiment.
With reference to Fig. 1, existing gravitational casting casting mold schematic diagram, comprise center riser 1, patrix 2, product rising head 3, gravity casting runner 4, limit mould 5, bed die seat 6, bed die 7 forms, center riser 1 connects patrix 2, patrix 2, limit mould 5, bed die 7 is combined to form the die cavity of hollow, bed die seat 6 connects support edge mould 5 and bed die 7, as can be seen from the figure, the die cavity of hollow has been reserved larger position and has been used for holding product rising head 3, because casting gate is arranged on limit mould 5, so expand with limit mould 5 volumes, inner complicated molten metal runner, inevitable processing and manufacturing difficulty is large, cost is high.Existing gravity foundry technology step is, first slowly pours aluminium liquid into gravity casting runner 4, forms product blank, has product rising head 3 after solidifying, and subsequent handling also needs to remove product rising head 3, not only work consuming but also damage material.
With reference to Fig. 2, according to provided by the invention for the gravity low pressure casting casting mold of holding concurrently, comprise push rod 1, tracheae 2, cylinder cap 3, cylinder inner chamber body 4, cylinder body 5, patrix 6, limit mould 7, bed die seat 8, bed die 9, center riser 10 forms, patrix 6, limit mould 7, bed die 9 constitutes hollow molded cavity, the opening part that center riser 10 is connected to patrix 6 forms casting gate, in center riser 10, be also provided with pressue device, it is by cylinder body 5, cylinder cap 3, tracheae 2 forms, cylinder body 5 connects with center riser 10, tracheae 2 is arranged on cylinder cap 3 and is communicated with outside cylinder and cylinder inner chamber body 4, patrix 6 is also provided with the hole that vertical direction is communicated with hollow molded cavity and is arranged on the push rod 1 being slidably matched with it in this hole, bed die 9 edged moulds 7 are also connected with bed die seat 8 in addition, can certainly connect and support bed die 9 or limit mould 7, so not only firmly but also stable.Processing step is first to pour aluminium liquid into cylinder inner chamber body 4 to form product blank, covers cylinder cap 3, by the compressed air after purifying, is pressed into cylinder inner chamber body 4 product blank is pressurizeed by tracheae 2, after solidifying, by push rod 1, product blank is ejected.With respect to existing gravity foundry technology, reduce gravity casting runner 4 and product rising head 3 with reference to Fig. 1, provided by the invention lighter for the gravity product blank that low pressure casting casts out with casting mold of holding concurrently, inherent quality is also better.
Claims (3)
1. the gravity low pressure casting casting mold of holding concurrently, comprise patrix, Bian Mo, bed die, center riser, patrix, Bian Mo, bed die constitute hollow molded cavity, the opening part that center riser is connected to patrix forms casting gate, it is characterized in that: in described center riser, be also provided with pressue device, it is made up of gray iron, tracheae, and cylinder body and center riser connect, and tracheae is arranged on cylinder cap and is communicated with outside cylinder and cylinder inner chamber body.
2. the gravity as claimed in claim 1 low pressure casting casting mold of holding concurrently, is characterized in that: patrix is also provided with the hole that vertical direction is communicated with hollow molded cavity and is arranged on the push rod being slidably matched with it in this hole.
3. the gravity as claimed in claim 1 or 2 low pressure casting casting mold of holding concurrently, is characterized in that: be also provided with bed die seat, it connects and supports bed die or limit mould or bed die edged mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210470463.5A CN103831418A (en) | 2012-11-20 | 2012-11-20 | Die for gravity casting and low-pressure casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210470463.5A CN103831418A (en) | 2012-11-20 | 2012-11-20 | Die for gravity casting and low-pressure casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103831418A true CN103831418A (en) | 2014-06-04 |
Family
ID=50795491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210470463.5A Pending CN103831418A (en) | 2012-11-20 | 2012-11-20 | Die for gravity casting and low-pressure casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103831418A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4478270A (en) * | 1981-04-01 | 1984-10-23 | Interlake, Inc. | Apparatus for casting low-density alloys |
| DE102005001243A1 (en) * | 2005-01-11 | 2006-11-16 | Hermann Fuchs | Production of automotive aluminum wheels comprises discharge of molten metal into form under gravity and pressure |
| CN1947893A (en) * | 2006-11-15 | 2007-04-18 | 黄伟锋 | Method for mfg. aluminium alloy wheel hub |
| CN102029383A (en) * | 2010-12-14 | 2011-04-27 | 何丙军 | Aluminum alloy wheel gravity casting die and casting method thereof |
| CN202097389U (en) * | 2011-06-21 | 2012-01-04 | 中信戴卡轮毂制造股份有限公司 | Wheel mold formed by gravity pouring extrusion |
| CN102728815A (en) * | 2012-07-25 | 2012-10-17 | 福安市广源机电有限公司 | Vacuum self-gravity pouring high-static pressure strong-pouring die-casting forming equipment and technique thereof |
| CN203124710U (en) * | 2012-11-20 | 2013-08-14 | 浙江启铖汽配有限公司 | Casting mold for gravity and low-pressure cast |
-
2012
- 2012-11-20 CN CN201210470463.5A patent/CN103831418A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4478270A (en) * | 1981-04-01 | 1984-10-23 | Interlake, Inc. | Apparatus for casting low-density alloys |
| DE102005001243A1 (en) * | 2005-01-11 | 2006-11-16 | Hermann Fuchs | Production of automotive aluminum wheels comprises discharge of molten metal into form under gravity and pressure |
| CN1947893A (en) * | 2006-11-15 | 2007-04-18 | 黄伟锋 | Method for mfg. aluminium alloy wheel hub |
| CN102029383A (en) * | 2010-12-14 | 2011-04-27 | 何丙军 | Aluminum alloy wheel gravity casting die and casting method thereof |
| CN202097389U (en) * | 2011-06-21 | 2012-01-04 | 中信戴卡轮毂制造股份有限公司 | Wheel mold formed by gravity pouring extrusion |
| CN102728815A (en) * | 2012-07-25 | 2012-10-17 | 福安市广源机电有限公司 | Vacuum self-gravity pouring high-static pressure strong-pouring die-casting forming equipment and technique thereof |
| CN203124710U (en) * | 2012-11-20 | 2013-08-14 | 浙江启铖汽配有限公司 | Casting mold for gravity and low-pressure cast |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6336519B2 (en) | Compound press casting method of a kind of magnesium alloy deformed parts | |
| CN104014760B (en) | A kind of die casting that can prevent foundry goods shrinkage cavity and its extrusion process | |
| CN101927329B (en) | Vacuum high-pressure casting method | |
| CN202097389U (en) | Wheel mold formed by gravity pouring extrusion | |
| CN102211166A (en) | Molding process for casting aluminum casting by using sand mold under low pressure | |
| CN108543914A (en) | A kind of high pressure hub casting mould and its casting method | |
| CN205869404U (en) | Casting wheel hub's mould | |
| CN203253897U (en) | Vertical die-casting machine | |
| CN202461484U (en) | Automobile air conditioning compressor cylinder body die-casting die | |
| CN203124710U (en) | Casting mold for gravity and low-pressure cast | |
| CN205629328U (en) | Die casting die of support frame | |
| CN113199000A (en) | Vacuum die casting machine with multiple injection modes and die casting method | |
| CN202527690U (en) | Solidification system for manufacturing magnesium alloy casting ingot | |
| JP2015039723A (en) | Casting method of wheel or wheel center part | |
| CN204209090U (en) | Novel metal die casting | |
| CN102430720A (en) | Method for producing flat gaskets by coated sand shell mould process | |
| CN204524227U (en) | Bell housing low pressure casting die | |
| CN103831418A (en) | Die for gravity casting and low-pressure casting | |
| CN106694846A (en) | Multi-pouring-gate die-casting die | |
| WO2018053938A1 (en) | Tandem cylinder vertical extrusion casting machine | |
| CN204711156U (en) | A kind of low Metallic Casting Die & Mold covering shell mould | |
| CN206605020U (en) | Many runner die casting mold tools | |
| CN202062046U (en) | Overturning casting die for front bearing cover of car cam | |
| CN203875314U (en) | Counter-pressure casting machine | |
| CN203751307U (en) | Die-casting die capable of preventing shrinkage cavity of casting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140604 |