CN207971384U - Wheel hub manufactures sand core - Google Patents
Wheel hub manufactures sand core Download PDFInfo
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- CN207971384U CN207971384U CN201820309013.0U CN201820309013U CN207971384U CN 207971384 U CN207971384 U CN 207971384U CN 201820309013 U CN201820309013 U CN 201820309013U CN 207971384 U CN207971384 U CN 207971384U
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- sand core
- ingate
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- wheel hub
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Abstract
The utility model provides a kind of wheel hub manufacture sand core, belongs to wheel hub manufacturing field.Wheel hub manufactures sand core：Upper sand core, the inside of upper sand core has the first cavity, have on upper sand core and pours mouth, middle sand core, middle sand core is connected with upper sand core, and the inside of middle sand core has the second cavity, the second cavity and the connection of the first cavity, there is upper layer ingate and lower layer's ingate, upper layer ingate to be connected to the second cavity with lower layer ingate on middle sand core；Lower sand core, lower sand core are connected with one end far from upper sand core on middle sand core.This wheel hub manufacture sand core can pass through the Feeding channel of upper layer ingate and lower layer's ingate, molten iron in first cavity and the second cavity can be supplemented effectively in time, each position is compensated for because of liquid contraction, solidification shrinkage generate volume change, to completely eliminate product inside shrinkage cavity and porosity.
Description
Technical field
The utility model is related to wheel hub manufacturing fields, and sand core is manufactured in particular to a kind of wheel hub.
Background technology
With the development of economy, the raising of living standards of the people, the demand to automobile are also growing day by day.As a kind of daily
Trip tool, the security performance of automobile increasingly paid attention to by the people, and this requires the spare and accessory parts on automobile to have higher
The performances such as intensity, antifatigue.Its security performance is particularly important as the load-carrying component of automobile for wheel hub.
Common automotive hub is magnesium iron class casting, and generally use is outer to pour into a mould into hydraulic art, although can be more with a mould
Part produces, but interiors of products consistency is low, and there are the casting flaws such as shrinkage cavity and porosity.Product is lacked without casting in order to meet client
Sunken demand, each producer also use iron chill shock chilling mode, eliminate internal defect in cast.This kind of technique is mainly the thermal center in casting
Placement chill in place's transmits heat by the Quench of chill, makes the cooling velocity of the molten iron at thermal center and the molten iron chill speed of surrounding
Degree is consistent, achievees the purpose that consecutive solidification, gives full play to the feeding effect of riser.But because the feeding distance of riser is limited, and by
Temperature height influences, the internal flaw for the elimination product which can not be fully effective.
Utility model content
The utility model provides a kind of wheel hub manufacture sand core, it is intended to solve existing for wheel hub manufacture sand core in the prior art
The above problem.
The utility model is realized in this way：
A kind of wheel hub manufactures sand core, for manufacturing wheel hub, including：
Upper sand core, the inside of the upper sand core have the first cavity, and first cavity runs through the upper sand core, it is described on
Have on sand core and pour mouth, the mouth that pours is connected to first cavity, is also had for being set with outside on the upper sand core
Positioning region on the sand core of standby connection；
Middle sand core, the middle sand core are connected with the upper sand core, and the inside of the middle sand core has the second cavity, and described the
Two cavitys are connected to first cavity, are had upper layer ingate and lower layer's ingate on the middle sand core, are poured in the upper layer
Mouthful positioned at lower layer's ingate and the upper sand core between, the upper layer ingate and lower layer's ingate are with described the
Two cavitys are connected to；
One end far from the upper sand core connects on lower sand core, the lower sand core and the middle sand core, on the lower sand core
It is provided with positioning region under the sand core for being connected with external equipment.
In the utility model preferred embodiment, the filter screen for placing filter screen is additionally provided on the upper sand core
Slot, the filter screen slot are connected to the mouth that pours.
In the utility model preferred embodiment, the upper layer ingate is set as multiple, is poured in multiple upper layers
Mouth is annularly spaced apart on the middle sand core.
In the utility model preferred embodiment, the upper layer ingate is set as 4,4 upper layer ingates
It is annularly evenly spaced on the middle sand core.
In the utility model preferred embodiment, lower layer's ingate is set as multiple, is poured in multiple lower layers
Mouth is annularly spaced apart on the middle sand core.
In the utility model preferred embodiment, lower layer's ingate is set as 4,4 lower layer's ingates
It is annularly evenly spaced on the middle sand core.
The utility model has the beneficial effects that：
The wheel hub manufacture sand core that the utility model is obtained by above-mentioned design when in use will be upper on upper sand core
Positioning region and external mold are fixed together, the positioning of sand core in realization, and molten iron is then injected into the first cavity by pouring mouth
Inside, molten iron flow through the inside for the second cavity that the first cavity enters on middle sand core, then respectively into cross upper layer ingate and
Lower layer's ingate outflow, is being poured into a mould early period, and molten iron passes through lower layer's ingate and carries out mold；In cast mid-term, molten iron passes through simultaneously
Upper layer ingate and lower layer's ingate enter mold；Phase after being cast, molten iron mainly enter mold by upper layer ingate.Lower layer
Ingate injects the liquid contraction of molten iron supplement molten iron early period, reduces the feeding pressure of upper layer ingate, by being poured in upper layer
Mouthful and lower layer's ingate Feeding channel, the molten iron in the first cavity and the second cavity can supplement effectively, be compensated in time
Each position is because of liquid contraction, the volume change that solidification shrinkage generates, to completely eliminate product inside shrinkage cavity and porosity.
Description of the drawings
It, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore not
The restriction to range is should be considered as, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other relevant attached drawings.
Fig. 1 is the structural schematic diagram for the wheel hub manufacture sand core that the utility model embodiment provides；
Fig. 2 is the structural schematic diagram for the product that the wheel hub manufacture sand core that the utility model embodiment provides is made；
Fig. 3 is the cross-sectional view of the structure for the product that the wheel hub manufacture sand core that the utility model embodiment provides is made.
Icon：100- wheel hubs manufacture sand core；The upper sand cores of 110-；Positioning region on 111- sand cores；112- pours mouth；113- is filtered
Net slot；Sand core in 120-；The upper layers 121- ingate；122- lower layers ingate；Sand core under 130-；Positioning region under 131- sand cores；
200- products.
Specific implementation mode
To keep the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with this practicality
The technical solution in the utility model embodiment is clearly and completely described in attached drawing in novel embodiment, shows
So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on this practicality
Embodiment in novel, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.Therefore, the implementation to the utility model provided in the accompanying drawings below
The detailed description of mode is not intended to limit claimed the scope of the utility model, but is merely representative of the utility model
Selected embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative labor
The every other embodiment obtained under the premise of dynamic, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be understood that the term of indicating position or position relationship is based on attached drawing
Shown in orientation or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than indicate or imply institute
The equipment or element of finger must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to this reality
With novel limitation.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be
Mechanical connection can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary two
The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature is on or below second feature
It may include that the first and second features are in direct contact, can also not be to be in direct contact but pass through it including the first and second features
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above include fisrt feature the
Right over two features and oblique upper, or be merely representative of fisrt feature level height and be higher than second feature.Fisrt feature is in the second spy
Under sign, lower section and fisrt feature included below are immediately below second feature and obliquely downward, or are merely representative of fisrt feature level
Height is less than second feature.
Embodiment one
A kind of wheel hub manufacture sand core 100 is present embodiments provided, for manufacturing wheel hub, is please referred to Fig.1, Fig. 2 and Fig. 3,
This wheel hub manufactures sand core 100：
There is the first cavity, the first cavity to run through upper sand core 110, upper sand core 110 for the inside of upper sand core 110, upper sand core 110
It is upper have pour mouth 112, pour mouth 112 and be connected to the first cavity, also have on upper sand core 110 and to be used to connect with external equipment
Positioning region 111 on sand core；
Middle sand core 120, middle sand core 120 and upper sand core 110 connect, and the inside of middle sand core 120 has the second cavity, and second is empty
Chamber and the first cavity are connected to, and have upper layer ingate 121 and lower layer's ingate 122, upper layer ingate 121 on middle sand core 120
Between lower layer's ingate 122 and upper sand core 110, upper layer ingate 121 is connected to the second cavity with lower layer ingate 122；
Lower sand core 130, lower sand core 130 are connected with one end far from upper sand core 110 on middle sand core 120, are set on lower sand core 130
It is equipped with positioning region 131 under the sand core for being connected with external equipment.
Positioning region 111 and external mold on sand core on upper sand core 110 are fixed together, the positioning of sand core 110 in realization will
Positioning region 131 and external mold are fixed together under sand core on lower sand core 130, realize the positioning of lower sand core 130, then pass through molten iron
It crosses and pours the inside that mouth 112 is injected into the first cavity, molten iron flows through the first cavity and enters the second cavity on middle sand core 120
Then early period is being poured into a mould, molten iron in lower layer by pouring in inside into upper layer ingate 121 and the outflow of lower layer's ingate 122 is crossed respectively
Mouth 122 carries out molds；In cast mid-term, molten iron enters mold by upper layer ingate 121 and lower layer's ingate 122 simultaneously；
It pours into a mould the later stage, molten iron mainly enters mold by upper layer ingate 121.Lower layer's ingate 122 injects molten iron supplement molten iron early period
Liquid contraction, reduce the feeding pressure of upper layer ingate 121, pass through the benefit of upper layer ingate 121 and lower layer's ingate 122
Contracting channel, the molten iron in the first cavity and the second cavity can be supplemented effectively in time, compensated for each position because of liquid contraction, coagulated
Gu shrink generate volume change, to completely eliminate product 200 inside shrinkage cavity and porosity.
Optionally, in the present embodiment, the filter screen slot 113 for placing filter screen, mistake are additionally provided on upper sand core 110
Filter screen groove 113 is connected to mouth 112 is poured.
The position of filter screen can be fixed for filter screen slot 113, to molten iron is imported into pour mouth 112 when
It waits, can be filtered, remove the solid impurity in molten iron.
Optionally, in the present embodiment, upper layer ingate 121 is set as multiple, and multiple upper layer ingates 121 are in middle sand core
It is annularly spaced apart on 120.
It is spaced apart between multiple upper layer ingates 121, can make the molten iron flowed out in upper layer ingate 121 distribution more
Add uniformly, so as to preferably supplement the liquid contraction of molten iron, eliminates the shrinkage cavity and porosity of the inside of product 200.
Optionally, in the present embodiment, lower layer's ingate 122 is set as multiple, and multiple lower layer's ingates 122 are in middle sand core
It is annularly spaced apart on 120.
It is spaced apart between multiple lower layer's ingates 122, can make the molten iron flowed out in lower layer's ingate 122 distribution more
Add uniformly, so as to preferably supplement the liquid contraction of molten iron, eliminates the shrinkage cavity and porosity of the inside of product 200.
The operation principle of wheel hub provided in this embodiment manufacture sand core 100 is, at work, will be on upper sand core 110
Upper positioning region and external mold be fixed together, then molten iron is injected by pouring mouth 112 by the positioning of sand core 110 in realization
The inside of first cavity, molten iron flows through the inside for the second cavity that the first cavity enters on middle sand core 120, then respectively into mistake
Upper layer ingate 121 and lower layer's ingate 122 flow out, and are pouring into a mould early period, and molten iron passes through lower layer's ingate 122 and carries out mold；
Mid-term is poured into a mould, molten iron enters mold by upper layer ingate 121 and lower layer's ingate 122 simultaneously；Phase after being cast, molten iron are main
Enter mold by upper layer ingate 121.Lower layer's ingate 122 injects the liquid contraction of molten iron supplement molten iron early period, reduces
The feeding pressure of upper layer ingate 121, by the Feeding channel of upper layer ingate 121 and lower layer's ingate 122, the first cavity and
Molten iron in second cavity can be supplemented effectively in time, compensate for the volume that each position is generated by liquid contraction, solidification shrinkage
Variation, to completely eliminate product 200 inside shrinkage cavity and porosity.
Embodiment two
A kind of hub manufacturing technology is present embodiments provided, manufacturing sand core 100 with the wheel hub provided in embodiment one makes
It makes, this hub manufacturing technology includes the following steps：
By heat steel at molten iron；
The content that low-sulfur carbon dust control Sulfur Content in Hot Iron is added into molten iron is less than 0.02%；
Copper is added into molten iron, the content of copper is made to control in 0.3-0.4%；
Molten iron is poured in a mold, it is cooling, form wheel hub.
Optionally, in the present embodiment, steel using in parts by weight count 38-42 parts automobile stamping rim charge, 18-22 parts
Deck of boat steel scrap and 38-42 parts of foundry returns mix.
Wherein, in the present embodiment, steel are useless using 40 parts of automobile stamping rim charge, 20 parts of the deck of boat is counted in parts by weight
Steel and 40 parts of foundry returns mix.
Optionally, in the present embodiment, in liquid iron balling, nodulizer is covered using splashings；
Wherein by weight, splashings is 1 with the ratio for going out iron：48-52.
Nodulizer is covered using splashings, can effectively enhance the nodularization effect of molten iron, improve the rank of nodularization.
Optionally, in the present embodiment, by nodularization packet, pour packet and instant inoculation, the silicone content of stokehold is controlled
In 1.0-1.3%.
Operation is bred three times by nodularization packet, pouring ladle and instant inoculation, and the silicone content of stokehold is controlled in 1.0-
1.3%, nodularization packet pregnant amount 0.7%, ladle inoculation amount 0.2%, instant inoculation 0.1%, make Si content control in 2.4-
2.6%.
Simultaneously using the nodulizer of low rare earth, not only ensure spheroidizing quality, but also reduces remaining content of magnesium.
Optionally, in the present embodiment, in the step of molten iron is cast in mold, the initial temperature poured is 1390-
1420℃。
Optionally, in the present embodiment, the cooling time is 1.5-2h.
By experiment, the initial temperature poured is 1390-1420 DEG C, and the cooling time can to produce for 1.5-2h
In the case that the hardness on the surface of product 200 is met the requirements, also there is preferable mechanical performance.
The use principle of hub manufacturing technology provided in this embodiment is, when in use, since its sulfur content is relatively low,
And copper content is between 0.3-0.4%, 200 better mechanical property of product obtained from, and manufactures sand core using wheel hub
100 are fabricated, and the inside for the product 200 that can make does not have situations such as shrinkage cavity and porosity.
It these are only preferred embodiments of the present invention, be not intended to limit the utility model, for ability
For the technical staff in domain, various modifications and changes may be made to the present invention.It is all the spirit and principles of the utility model it
Interior, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of wheel hub manufactures sand core, for manufacturing wheel hub, which is characterized in that including：
There is the first cavity, first cavity to run through the upper sand core, the upper sand core for the inside of upper sand core, the upper sand core
Upper with mouth is poured, the mouth that pours is connected to first cavity, is also had on the upper sand core for connecting with external equipment
Positioning region on the sand core connect；
Middle sand core, the middle sand core are connected with the upper sand core, and the inside of the middle sand core has the second cavity, and described second is empty
Chamber is connected to first cavity, has upper layer ingate and lower layer's ingate, upper layer ingate position on the middle sand core
Between lower layer's ingate and the upper sand core, the upper layer ingate and lower layer's ingate are empty with described second
Chamber is connected to；
One end far from the upper sand core connects on lower sand core, the lower sand core and the middle sand core, is arranged on the lower sand core
It is useful for positioning region under the sand core connected with external equipment.
2. wheel hub according to claim 1 manufactures sand core, which is characterized in that be additionally provided on the upper sand core for placing
The filter screen slot of filter screen, the filter screen slot are connected to the mouth that pours.
3. wheel hub according to claim 1 manufactures sand core, which is characterized in that the upper layer ingate is set as multiple, more
A upper layer ingate is annularly spaced apart on the middle sand core.
4. wheel hub according to claim 3 manufactures sand core, which is characterized in that the upper layer ingate is set as 4,4
The upper layer ingate is annularly evenly spaced on the middle sand core.
5. wheel hub according to claim 1 manufactures sand core, which is characterized in that lower layer's ingate is set as multiple, more
A lower layer's ingate is annularly spaced apart on the middle sand core.
6. wheel hub according to claim 5 manufactures sand core, which is characterized in that lower layer's ingate is set as 4,4
Lower layer's ingate is annularly evenly spaced on the middle sand core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820309013.0U CN207971384U (en) | 2018-03-06 | 2018-03-06 | Wheel hub manufactures sand core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820309013.0U CN207971384U (en) | 2018-03-06 | 2018-03-06 | Wheel hub manufactures sand core |
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| Publication Number | Publication Date |
|---|---|
| CN207971384U true CN207971384U (en) | 2018-10-16 |
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| CN201820309013.0U Active CN207971384U (en) | 2018-03-06 | 2018-03-06 | Wheel hub manufactures sand core |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108393436A (en) * | 2018-03-06 | 2018-08-14 | 江门市广进铸锻有限公司 | Wheel hub manufactures sand core and hub manufacturing technology |
| CN109530630A (en) * | 2018-12-26 | 2019-03-29 | 广东富华铸锻有限公司 | Five spoke barrel casting molds of one kind and five spoke barrel manufacturing methods |
-
2018
- 2018-03-06 CN CN201820309013.0U patent/CN207971384U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108393436A (en) * | 2018-03-06 | 2018-08-14 | 江门市广进铸锻有限公司 | Wheel hub manufactures sand core and hub manufacturing technology |
| CN109530630A (en) * | 2018-12-26 | 2019-03-29 | 广东富华铸锻有限公司 | Five spoke barrel casting molds of one kind and five spoke barrel manufacturing methods |
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