CN104338909A - Wheel hub casting molding process - Google Patents
Wheel hub casting molding process Download PDFInfo
- Publication number
- CN104338909A CN104338909A CN201410506909.4A CN201410506909A CN104338909A CN 104338909 A CN104338909 A CN 104338909A CN 201410506909 A CN201410506909 A CN 201410506909A CN 104338909 A CN104338909 A CN 104338909A
- Authority
- CN
- China
- Prior art keywords
- casting
- molten iron
- wheel hub
- molding process
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/28—Moulds for peculiarly-shaped castings for wheels, rolls, or rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
Abstract
The invention provides a wheel hub casting molding process. A plurality of sprues are simultaneously used for casting so that molten iron for casting can fast enter a mold without a riser; indirect external iron chill is placed on the part, corresponding to a part with heavy wall thickness of a casting, of the casting mold, so that the molten iron for casting in all parts of the casting mold is simultaneously cooled, wherein the temperature of the molten iron for casting is between 1290-1420 DEG C. The process provided by the invention is high in effluent rate and is capable of saving cost and improving production efficiency.
Description
Technical field
The present invention relates to a kind of wheel hub casting molding process.
Background technology
Existing wheel hub cast molding is a cast gate, needs to arrange one or more rising head to collect cold metal, makes these places would not occur white structure because metal crosses cold, causes foundry goods to be scrapped.Because rising head have collected cold metal, this just requires to need during casting to increase molten iron consumption, which results in water rate low.
Ironcasting because its structure need cause various piece wall unevenness, some positions are very thick, and in the process of cooling, just cooling is slow, the thin position of wall thickness just cooling fast, make each position cooling velocity of same foundry goods uneven.The result caused likely produces shrinkage cavity or position drawing crack thin for wall.In order to avoid the generation of this phenomenon, after moulding completes, just place external chill at the position that wall thickness is thick, absorb the temperature of molten iron with it, accelerate the cooling velocity at this position, shorten the time difference of the position cooling thin with other wall thickness.Need external chill feeding when casting, external chill in use ingress of air is easily corroded, and often will change, cost is large.
Traditional handicraft is in order to prevent shrinkage cavity, and during casting, molten iron temperature will accurately control at 1350 DEG C, and this causes keeping suitable temperature, and the molten iron in each boiler can only pour out a part to container, casts, inefficiency.
Summary of the invention
The technical problem to be solved in the present invention, be to provide a kind of wheel hub casting molding process, water rate is done, cost-saving, and can enhance productivity.
The present invention is achieved in that a kind of wheel hub casting molding process, adopts multiple cast gate to cast simultaneously, and the molten iron of casting is entered rapidly, without the need to rising head; Place indirect external chill in the place of the large wall thickness of the corresponding foundry goods of casting die, the molten iron of the casting of each several part in casting die is cooled simultaneously; The molten iron temperature of wherein casting is between 1290 ~ 1420 DEG C.
Further, the molten iron of described casting is first poured in a bulk container by boiler, then adopts the method for a multi-cavity mold to cast one by one, and the implication of described a multi-cavity mold refers to and arrange a plurality of die cavity in a mould, in order to pour into a mould multiple product simultaneously, raises the efficiency.
Further, the setting principle of described multiple cast gate is uniformly distributed along casting die cross gate.For disperseing thermal center, the principle making foundry goods follow Equilibrium Solidification is solidified, and is uniformly distributed and can makes molten iron smooth flow in flow process, there will not be turbulent flow.
Further, the large wall thickness of described foundry goods need meet the condition reaching and form thermal center, and the consumption of external chill is: the usage ratio of thermal center size and external chill is 1:1.2.
Tool of the present invention has the following advantages: the present invention adopts multiple cast gate to cast simultaneously, and the molten iron of casting is entered rapidly, and front end liquid can not occur white structure because of crossing cold, without the need to rising head, improves water rate.Place indirect external chill in the thickest place of mould in addition, magnesium iron each several part is cooled simultaneously.Indirect external chill, because outside is every sand, can not be corroded, provides cost savings.New technology molten iron temperature can between 1290 ~ 1420 DEG C, and boiler water can be poured in a bulk container, a multi-cavity mold is cast one by one, raises the efficiency.
Accompanying drawing explanation
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the structural representation of the lower surface of the patrix of the wheel hub casting die of one embodiment of the invention.
Fig. 2 is the structural representation of the upper surface of the counterdie of the wheel hub casting die of one embodiment of the invention.
Fig. 3 is the distribution schematic diagram of the indirect external chill of one embodiment of the invention.
Detailed description of the invention
As shown in Figure 1 to Figure 3, wheel hub casting molding process of the present invention, is on casting die 1, arrange multiple cast gate 11 lead to die cavity 10, adopts multiple cast gate 11 to cast simultaneously, make the molten iron of casting enter rapidly die cavity 10, without the need to rising head; Place indirect external chill 2 in the place of the large wall thickness of the corresponding foundry goods of casting die 1, the molten iron of each several part in casting die 1 is cooled simultaneously; The molten iron temperature of wherein casting is between 1290 ~ 1420 DEG C.
As shown in Figure 2, principle casting die 1 being arranged described multiple cast gate 11 is uniformly distributed along casting die cross gate 13.For disperseing thermal center, the principle making foundry goods follow Equilibrium Solidification is solidified, be uniformly distributed and can make molten iron smooth flow in flow process, there will not be turbulent flow, multiple cast gate 11 can make the molten iron of casting enter in the die cavity 10 of casting die 1 from multiple cast gate 11 simultaneously, thus make the speed that enters faster, heat can also be made to disperse as much as possible, and evenly, can not there is white structure because of crossing cold in such front end molten iron, without the need to rising head, improve water rate.
As shown in Figures 2 and 3, the ingate 12 of casting die 1 is evenly distributed on the semicircle of wheel hub, indirect external chill 2 is placed in the place (place 122 that in as figure, ingate 12 bends) of the large wall thickness of the corresponding foundry goods of casting die 1, the large wall thickness of described foundry goods need meet the condition reaching and form thermal center, and the consumption of external chill is: the usage ratio of thermal center size and external chill is 1:1.2.The molten iron of each several part in casting die 1 can be made like this to cool, and external chill 2, because outside is every sand, can not be corroded, provides cost savings indirectly simultaneously.
The molten iron of described casting is first poured in a bulk container by boiler, then adopt the method for a multi-cavity mold to cast one by one, mainly as depicted in figs. 1 and 2, the implication of described a multi-cavity mold refers to arrange a plurality of die cavity 10 in a mould 1, in order to pour into a mould multiple product simultaneously, raise the efficiency.
In sum, adopt multiple cast gate to cast simultaneously, the molten iron of casting is entered rapidly in method of the present invention, can not there is white structure because of crossing cold in front end liquid, without the need to rising head, improve water rate.Place indirect external chill in the thickest place of mould in addition, the molten iron of each several part in casting die is cooled simultaneously, and molten iron temperature so just can be made all applicable between 1290 DEG C-1420 DEG C, and indirect external chill, because outside is every sand, can not be corroded, provides cost savings.For raising the efficiency, boiler water can also be poured in a bulk container, a multi-cavity mold is cast one by one.
Although the foregoing describe the specific embodiment of the present invention; but be familiar with those skilled in the art to be to be understood that; specific embodiment described by us is illustrative; instead of for the restriction to scope of the present invention; those of ordinary skill in the art, in the modification of the equivalence done according to spirit of the present invention and change, should be encompassed in scope that claim of the present invention protects.
Claims (4)
1. a wheel hub casting molding process, is characterized in that: adopt multiple cast gate to cast simultaneously, and the molten iron of casting is entered rapidly, without the need to rising head; Place indirect external chill in the place of the large wall thickness of the corresponding foundry goods of casting die, the molten iron of the casting of each several part in casting die is cooled simultaneously; The molten iron temperature of wherein casting is between 1290 ~ 1420 DEG C.
2. a kind of wheel hub casting molding process according to claim 1, it is characterized in that: the molten iron of described casting is first poured in a bulk container by boiler, then adopt the method for a multi-cavity mold to cast one by one, the implication of described a multi-cavity mold refers to and arrange a plurality of die cavity in a mould.
3. a kind of wheel hub casting molding process according to claim 1, is characterized in that: the setting principle of described multiple cast gate is uniformly distributed along casting die cross gate.
4. a kind of wheel hub casting molding process according to claim 1, is characterized in that: the large wall thickness of described foundry goods need meet the condition reaching and form thermal center, and the consumption of external chill is: the usage ratio of thermal center size and external chill is 1:1.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410506909.4A CN104338909A (en) | 2014-09-28 | 2014-09-28 | Wheel hub casting molding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410506909.4A CN104338909A (en) | 2014-09-28 | 2014-09-28 | Wheel hub casting molding process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104338909A true CN104338909A (en) | 2015-02-11 |
Family
ID=52495841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410506909.4A Pending CN104338909A (en) | 2014-09-28 | 2014-09-28 | Wheel hub casting molding process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104338909A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623811A (en) * | 2016-12-21 | 2017-05-10 | 宁波市北仑怡健模具制造有限公司 | Automobile cam mould |
| CN108817327A (en) * | 2018-06-25 | 2018-11-16 | 宁波拓铁机械有限公司 | Thin-walled frame casting one casts the casting method having more |
| CN113305283A (en) * | 2021-05-25 | 2021-08-27 | 西北工业大学 | High-flux preparation method of metal part |
| CN114147181A (en) * | 2021-10-21 | 2022-03-08 | 浙江林家昌隆阀门铸造有限公司 | Double-furnace casting method |
Citations (5)
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|---|---|---|---|---|
| US3876109A (en) * | 1970-03-12 | 1975-04-08 | Demag Ag | Pouring vessel for accurate weight casting |
| CN101780528A (en) * | 2009-01-16 | 2010-07-21 | 辽宁隆达集团百星达铸造有限责任公司 | Riser-free casting method for stator main shaft of wind turbine |
| CN102430714A (en) * | 2011-11-30 | 2012-05-02 | 天津一机机械有限公司 | Process for casting thick and large nodular cast iron valve plate |
| CN102672112A (en) * | 2012-04-28 | 2012-09-19 | 浙江坤博机械制造有限公司 | Casting method of motor casing |
| CN103331585A (en) * | 2013-07-03 | 2013-10-02 | 扬州扬子江宝云缸套有限公司 | Method for manufacturing isothermal quenching spheroidal graphite cast iron large-scale heavy-load gear |
-
2014
- 2014-09-28 CN CN201410506909.4A patent/CN104338909A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3876109A (en) * | 1970-03-12 | 1975-04-08 | Demag Ag | Pouring vessel for accurate weight casting |
| CN101780528A (en) * | 2009-01-16 | 2010-07-21 | 辽宁隆达集团百星达铸造有限责任公司 | Riser-free casting method for stator main shaft of wind turbine |
| CN102430714A (en) * | 2011-11-30 | 2012-05-02 | 天津一机机械有限公司 | Process for casting thick and large nodular cast iron valve plate |
| CN102672112A (en) * | 2012-04-28 | 2012-09-19 | 浙江坤博机械制造有限公司 | Casting method of motor casing |
| CN103331585A (en) * | 2013-07-03 | 2013-10-02 | 扬州扬子江宝云缸套有限公司 | Method for manufacturing isothermal quenching spheroidal graphite cast iron large-scale heavy-load gear |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623811A (en) * | 2016-12-21 | 2017-05-10 | 宁波市北仑怡健模具制造有限公司 | Automobile cam mould |
| CN108817327A (en) * | 2018-06-25 | 2018-11-16 | 宁波拓铁机械有限公司 | Thin-walled frame casting one casts the casting method having more |
| CN113305283A (en) * | 2021-05-25 | 2021-08-27 | 西北工业大学 | High-flux preparation method of metal part |
| CN114147181A (en) * | 2021-10-21 | 2022-03-08 | 浙江林家昌隆阀门铸造有限公司 | Double-furnace casting method |
| CN114147181B (en) * | 2021-10-21 | 2023-12-29 | 浙江林家昌隆阀门铸造有限公司 | Double-furnace casting method |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150211 |