CN209532033U - Fusible chaplet for thin-wall iron casting and combined core thereof - Google Patents
Fusible chaplet for thin-wall iron casting and combined core thereof Download PDFInfo
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- CN209532033U CN209532033U CN201822052928.0U CN201822052928U CN209532033U CN 209532033 U CN209532033 U CN 209532033U CN 201822052928 U CN201822052928 U CN 201822052928U CN 209532033 U CN209532033 U CN 209532033U
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Abstract
The utility model provides an easily-fusible core support for thin-wall iron castings and a combined core thereof, wherein the easily-fusible core support for thin-wall iron castings comprises an inner copper body and an outer tin layer wrapped outside the inner copper body, the inner copper body is made of copper, the outer tin layer is made of tin, the inner copper body comprises a connecting column, and an upper support and a lower support which are vertically connected with the two ends of the connecting column; the combined core comprises a water feeding sleeve core, a round bar core and a core support, the number of the water feeding sleeve core is one, the number of the round bar core and the core support is multiple, the round bar core and the core support are in one-to-one correspondence, a plurality of continuously arranged core units are arranged on the top surface of the water feeding sleeve core, a round bar core is correspondingly placed above each core unit, and a core support is arranged between each round bar core and each core unit. The design can ensure that the core support and the casting are fused completely, impurities cannot be introduced, and the anti-oxidation effect is good.
Description
Technical field
The utility model relates to a kind of studs, belong to casting field more particularly to a kind of meltable stud of thin wall iron part
And its core is combined at place, it is particularly applicable to improve the fusion effect of stud and casting, and does not introduce impurity.
Background technique
The method that existing engine cylinder body mostly uses casting is made, and during producing, needs first to put in sandbox
Sand core is set, reinjects molten iron with casting and forming.
Application publication number is CN105215294A, and data of publication of application is that the utility application on January 6th, 2016 is public
A kind of stud is opened comprising stem, a pair of of pedestal and connector, stem include the first end being oppositely arranged and second end
Portion, a pair of of pedestal are detachably connectable to first end and the second end respectively, and connector is fixedly attached to the first end of stem
Portion, stem are made of carbon steel or steel alloy, and pedestal is made of gray iron, spheroidal graphite cast-iron or cast steel.Although the design can be improved
The height of stud, but it still has the disadvantage that
The fusing point of making material used by stud is all higher in the design, and about 1300 DEG C, in application, when stud is placed
Position wall thickness it is relatively thin, or when far from ingate, if the molten iron temperature in the region with 1300 DEG C quite or when being lower than the temperature,
It will cause stud and casting fusion not exclusively, leaked so as to cause casting.
The information for disclosing the background technology part is merely intended to increase the understanding to the general background of present patent application, without
It should be considered as recognizing or implying in any form that the information constitutes existing skill already known to those of ordinary skill in the art
Art.
Summary of the invention
The purpose of the utility model is to overcome studs existing in the prior art to fuse incomplete defect and ask with casting
Topic provides a kind of stud and casting and fuses more completely thin wall iron part and with meltable stud and its place combines core.
In order to achieve the above object, the technical solution of the utility model is: a kind of meltable stud of thin wall iron part；Institute
Stating meltable stud includes interior copper body and outer tin layers, and the outer tin layers are the nonwoven fabric from filaments being wrapped in outside interior copper body；The interior copper body
Making material is copper, and the making material of the outer tin layers is tin, and the quality of interior copper body is greater than the quality of outer tin layers.
In the meltable stud, mass ratio shared by interior copper body is 99.90% -99.95%, mass ratio shared by outer tin layers
It is 0.05% -0.1%.
The outer tin layers are wrapped in the operating procedure outside interior copper body as plating.
The outer tin layers with a thickness of 3-6 μm.
The interior copper body includes upper bracket, connecting column and undersetting, and the bottom surface of the upper bracket is through connecting column and undersetting
Top surface vertically connect；The upper bracket, undersetting cross section be round, ellipse, triangle or polygon.
The diameter of the connecting column is greater than the thickness of upper bracket, undersetting.
It is provided with external screw thread on the side wall of the connecting column, which belongs to interior copper body.
More longitudinal thin slices are provided on the side wall of the connecting column, which belongs to interior copper body, longitudinal thin slice
Inner side edge is connected with the side wall of connecting column, and the outer side edges of longitudinal thin slice extend outwardly, the top of longitudinal thin slice and upper bracket
Bottom surface is connected, and the bottom end of longitudinal thin slice is connected with the top surface of undersetting, and all longitudinal thin slices are all around the side wall of connecting column
It is evenly arranged.
A kind of combination core of the above-mentioned thin wall iron part where meltable stud, the combination core includes upper water sleeve core, pole
Core and stud, the quantity of upper water sleeve core are one, pole core, stud quantity be multiple, and pole core, stud correspond；
Multiple core units continuously arranged are offered on the top surface of the upper water sleeve core, the top correspondence of each core unit is placed with one
A pole core；
The core unit includes intermediate base body and No.1 Tuo Bi, No. two support walls positioned at its two sides, and No.1 Tuo Bi, No. two
The top setting of intermediate base body is above at the top of support wall；The bottom of the No.1 support wall and the left top phase of the No.1 of No.1 groove
Connection, the right top of the No.1 of No.1 groove are connected with the left side of intermediate base body, the right side of intermediate base body and No. two grooves
No. two left tops be connected, No. two right tops of No. two grooves are connected with the bottom of No. two support walls, the top surface of intermediate base body
On be provided with lower supporting point to be supported cooperation with undersetting, the upper bracket of the stud where the undersetting and corresponding pole
The upper supporting point being arranged on core print side wall in core is supported cooperation.
Compared with prior art, the utility model has the following beneficial effects:
1, a kind of the utility model meltable stud of thin wall iron part and its place are combined in core, and the stud protected includes
Interior copper body and outer tin layers, the outer tin layers are the nonwoven fabric from filaments being wrapped in outside interior copper body；The making material of the interior copper body is copper, institute
The making material for stating outer tin layers is tin, in application, the fusing point of copper is about 1083 DEG C since the fusing point of tin is about 232 DEG C, it is all remote small
The temperature (about 1200 DEG C) of the molten iron injected when filling type, thus, even if the stud in the design be placed on casting section thickness compared with
Thin region can also fuse completely with casting, simultaneously as, in order to improve the content of pearlite in alloy of cast iron, improving when Cast Iron Production
The mechanical property of materials can add a certain amount of copper, tin into molten iron, therefore the stud manufactured using both elements will not be to casting
Impurity is introduced in part or brings gas into generate defect, in addition, outer tin layers can not only promote the fusion of interior copper body and molten iron, is mentioned
Height fusion effect, and the oxidation of interior copper body can also be prevented.Therefore, the utility model not only can ensure that stud and casting fusion compared with
Completely, and impurity will not be introduced, oxidation-protective effect is preferable.
2, a kind of the utility model meltable stud of thin wall iron part and its place are combined in core, and interior copper body includes connecting column
And with its both ends upper bracket connected vertically, undersetting, in application, upper bracket and pole core are supported cooperation, undersetting and
Jacket core is supported cooperation, before filling type and can not only fill supporting role relatively firm from type initial stage, prevent sand core from deforming,
Convenient for the injection of molten iron, and the small volume of entire stud is also convenient for subsequent and molten iron fusion, especially both convenient for placing
When the diameter of connecting column is greater than the thickness of upper bracket, undersetting, better effect.Further, since the manufacture of upper bracket, undersetting
Material is all copper, and outer to be plated with tin, temperature is below the temperature of molten iron, thus it is fine with the fusion effect of molten iron, so that
Do not need on upper bracket, undersetting again it is additional open up fluxing hole, save operational sequence, reduce costs.Therefore, this reality
With the novel effect not only fused preferably, when being avoided that casting sand core deformation, but also save operational sequence.
3, a kind of the utility model meltable stud of thin wall iron part and its place are combined in core, can on the side wall of connecting column
It is provided with external screw thread, which is dispersed throughout the side wall of connecting column, to increase the contact area of molten iron and stud, more conducively stud
Fusion can not only expand connecing for molten iron and stud in addition it is also possible to more longitudinal thin slices are arranged on the side wall of connecting column
Contacting surface product, in favor of fusion, and can increase longitudinal support force, it is ensured that sand core is indeformable when casting.Therefore, the utility model
The contact area of stud and molten iron can be expanded, to improve the fusion effect of stud and molten iron.
4, a kind of the utility model meltable stud of thin wall iron part and its place are combined in core, the top of single upper water sleeve core
Multiple core units continuously arranged are offered on face, the top of each core unit, which corresponds to, is placed with a pole core, pole core,
Stud corresponds, and stud is occupy to play a part of to support up and down between core unit, pole core, and stability is stronger, is avoided that casting
The deformation of sand core when making, to guarantee the size of casting, in addition, the support of the floating support ability substitution stud when the molten iron of injection
After power, stud melts generated copper, tin can fuse completely with molten iron, and not introduce impurity.Therefore, the utility model is not only
The stability of support is stronger, and conducive to smoothly completing for casting, and the fusion effect of stud is preferable, will not introduce impurity.
5, a kind of the utility model meltable stud of thin wall iron part and its place are combined in core, included by application method
Step is less, and the group core step that only successively carries out fills the two steps of type step, easily operated, moreover, in a group core step
In, by the setting of stud, jacket core, pole core can either be carried out stablizing support, facilitate the operation of completion group core, Er Qieliu
There is sufficient space in favor of the subsequent flowing for filling molten iron in type operation, herein on basis, the I-shaped structure of stud is more sharp
It is surrounded in molten iron, is conducive to realize subsequent complete fusion.Therefore, the utility model not only operates simply, Er Qierong
It is higher to close quality.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of interior copper body in stud in the utility model, outer tin layers.
Fig. 2 is the structural schematic diagram of interior copper body in Fig. 1.
Fig. 3 is structural schematic diagram when being provided with longitudinal thin slice in Fig. 1 on interior copper body.
Fig. 4 is the structural schematic diagram that core is combined in the utility model.
Fig. 5 is the structural schematic diagram of upper water sleeve core in Fig. 4.
Fig. 6 is the structural schematic diagram of pole core in Fig. 4.
In figure: stud 1, interior copper body 11, outer tin layers 12, upper bracket 2, connecting column 3, external screw thread 31, longitudinal thin slice 32, lower branch
Seat 4, upper water sleeve core 5, core unit 51, intermediate base body 52, lower supporting point 521, No.1 support wall 53, No. two support walls 54, No.1 grooves
55, the left top 551 of No.1, No.1 right top 552, two groove 56, two left top 561, two right top 562, pole core
6, core print side wall 61, upper supporting point 611, core print 62.
Specific embodiment
The utility model is described in further detail below in conjunction with Detailed description of the invention and specific embodiment.
Referring to Fig. 1 to Fig. 6, a kind of meltable stud of thin wall iron part；The meltable stud includes interior copper body 11 and outer tin
Layer 12, the outer tin layers 12 are the nonwoven fabric from filaments being wrapped in outside interior copper body 11；The making material of the interior copper body 11 is copper, described outer
The making material of tin layers 12 is tin, and the quality of interior copper body 11 is greater than the quality of outer tin layers 12.
In the meltable stud, mass ratio shared by interior copper body 11 is 99.90% -99.95%, matter shared by outer tin layers 12
Amount is than being 0.05% -0.1%.
The outer tin layers 12 are wrapped in the operating procedure outside interior copper body 11 as plating.
The outer tin layers 12 with a thickness of 3-6 μm.
The interior copper body 11 includes upper bracket 2, connecting column 3 and undersetting 4, the bottom surface of the upper bracket 2 through connecting column 3 with
The top surface of undersetting 4 vertically connects；The upper bracket 2, undersetting 4 cross section be round, ellipse, triangle or polygon
Shape.
The diameter of the connecting column 3 is greater than the thickness of upper bracket 2, undersetting 4.
It is provided with external screw thread 31 on the side wall of the connecting column 3, which belongs to interior copper body 11.
More longitudinal thin slices 32 are provided on the side wall of the connecting column 3, which belongs to interior copper body 11, longitudinal
The inner side edge of thin slice 32 is connected with the side wall of connecting column 3, and the outer side edges of longitudinal thin slice 32 extend outwardly, the top of longitudinal thin slice 32
End is connected with the bottom surface of upper bracket 2, and the bottom end of longitudinal thin slice 32 is connected with the top surface of undersetting 4, all longitudinal thin slices
32 side wall all around connecting column 3 is evenly arranged.
A kind of combination core of the above-mentioned thin wall iron part where meltable stud, the combination core includes upper water sleeve core 5, pole
Core 6 and stud 1, the quantity of upper water sleeve core 5 are one, pole core 6, stud 1 quantity be multiple, and pole core 6, stud 1 one
One is corresponding；Multiple core units 51 continuously arranged, the top of each core unit 51 are offered on the top surface of the upper water sleeve core 5
Correspondence is placed with a pole core 6；
The core unit 51 includes intermediate base body 52 and 53, No. two support walls 54 of No.1 support wall positioned at its two sides, and No.1
The top of support 53, No. two support walls 54 of wall is above the top setting of intermediate base body 52；The bottom of the No.1 support wall 53 and No.1
The left top 551 of the No.1 of groove 55 is connected, and the right top 552 of the No.1 of No.1 groove 55 is connected with the left side of intermediate base body 52
It connects, the right side of intermediate base body 52 is connected with No. two left tops 561 of No. two grooves 56, No. two right tops of No. two grooves 56
562 are connected with the bottom of No. two support walls 54, be provided on the top surface of intermediate base body 52 lower supporting point 521 with undersetting 4 into
Row support cooperates, and is arranged on the upper bracket 2 and core print side wall 61 in corresponding pole core 6 of the stud 1 where the undersetting 4 upper
Supporting point 611 is supported cooperation.
A kind of application method of the above-mentioned meltable stud of thin wall iron part, the application method includes the group core successively carried out
Step and fill type step；
Described group of core step includes: first to finish the placement of upper water sleeve core 5, then the undersetting 4 of stud 1 is placed on upper water sleeve
On the top surface of core 5, then the core print 62 of pole core 6 is placed on upper water sleeve core 5, when placement, the upper bracket 2 and circle of stud 1
The upper supporting point 611 being arranged on core print side wall 61 in stick core 6 is supported cooperation, and so on, a pole core 6 is one corresponding
Stud 1 completes the placement of all pole cores 6, with completion group core step；
The type step of filling includes: injection molten iron to carry out filling type, is being filled type initial stage, stud 1 plays support to pole core 6 and makees
With as the molten iron of injection is more and more, the molten iron around stud 1 is also more and more, and the floating support ability of molten iron is gradually replaced
For the support force of stud 1, stud 1 is gradually melted by molten iron, and after being filled up completely by molten iron around stud 1, stud 1 can be by molten iron
It is completely melt, melts copper caused by stud 1, tin can fuse completely with surrounding molten iron.
The principles of the present invention are described as follows:
In the prior art, in casting, jacket core can be deformed under the effect of gravity, especially in casting process,
Temperature is higher in type, and the deflection of sand core will increase, if do not supported, the size of casting not can guarantee.For this purpose, the design is special
Design a kind of meltable stud (as described easy fusible core of the utility model stud 1 employed in combination core, application method
Support), to play a supportive role between pole core and jacket core.It is found after, this stud can play branch to sand core filling type early period
Support effect, stud can melt after molten iron is contacted with stud, until fused completely with molten iron, to fuse into casting completely, and
Fusion is complete, and fusion boundary is not present because of crackle caused by fusing not exclusively.Even if it is relatively thin that stud is placed on casting section thickness
Region, since a group copper for cost stud, the fusing point of tin are below the temperature of molten iron, thus, stud can also fuse completely with casting.
Further, since, in order to improve the content of pearlite in alloy of cast iron, the mechanical property of materials is improved when Cast Iron Production, it can Xiang Tie
A certain amount of Cu and Sn is added in water.Therefore impurity or band will not be introduced into casting using the stud that both elements manufacture
Enter gas to generate defect.
Embodiment 1:
Referring to Fig. 1 to Fig. 6, a kind of meltable stud of thin wall iron part；The meltable stud includes interior copper body 11 and outer tin
Layer 12, the outer tin layers 12 are the nonwoven fabric from filaments being wrapped in outside interior copper body 11；The making material of the interior copper body 11 is copper, described outer
The making material of tin layers 12 is tin, and the quality of interior copper body 11 is greater than the quality of outer tin layers 12.
Embodiment 2:
Basic content with embodiment 1, the difference is that:
The interior copper body 11 includes upper bracket 2, connecting column 3 and undersetting 4, the bottom surface of the upper bracket 2 through connecting column 3 with
The top surface of undersetting 4 vertically connects；The upper bracket 2, undersetting 4 cross section be round, ellipse, triangle or polygon
Shape.It is preferred that the diameter of connecting column 3 is greater than the thickness of upper bracket 2, undersetting 4.
A kind of combination core of the above-mentioned thin wall iron part where meltable stud, the combination core includes upper water sleeve core 5, pole
Core 6 and stud 1, the quantity of upper water sleeve core 5 are one, pole core 6, stud 1 quantity be multiple, and pole core 6, stud 1 one
One is corresponding；Multiple core units 51 continuously arranged, the top of each core unit 51 are offered on the top surface of the upper water sleeve core 5
Correspondence is placed with a pole core 6；The core unit 51 includes intermediate base body 52 and positioned at No.1 support wall 53, two of its two sides
Wall 54 is held in the palm, and the top of 53, No. two support walls 54 of No.1 support wall is above the top setting of intermediate base body 52；The No.1 support wall 53
Bottom be connected with the left top 551 of the No.1 of No.1 groove 55, the right top of the No.1 of No.1 groove 55 552 and intermediate base body 52
Left side be connected, the right side of intermediate base body 52 is connected with No. two left tops 561 of No. two grooves 56, No. two grooves 56
No. two right tops 562 be connected with the bottom of No. two support walls 54, be provided on the top surface of intermediate base body 52 lower supporting point 521 with
It is supported cooperation with undersetting 4, the upper bracket 2 of the stud 1 where the undersetting 4 and core print side wall in corresponding pole core 6
The upper supporting point 611 being arranged on 61 is supported cooperation.
A kind of application method of the above-mentioned meltable stud of thin wall iron part, the application method includes the group core successively carried out
Step and fill type step；
Described group of core step includes: first to finish the placement of upper water sleeve core 5, then the undersetting 4 of stud 1 is placed on upper water sleeve
On the top surface of core 5, then the core print 62 of pole core 6 is placed on upper water sleeve core 5, when placement, the upper bracket 2 and circle of stud 1
The upper supporting point 611 being arranged on core print side wall 61 in stick core 6 is supported cooperation, and so on, a pole core 6 is one corresponding
Stud 1 completes the placement of all pole cores 6, with completion group core step；
The type step of filling includes: injection molten iron to carry out filling type, is being filled type initial stage, stud 1 plays support to pole core 6 and makees
With as the molten iron of injection is more and more, the molten iron around stud 1 is also more and more, and the floating support ability of molten iron is gradually replaced
For the support force of stud 1, stud 1 is gradually melted by molten iron, and after being filled up completely by molten iron around stud 1, stud 1 can be by molten iron
It is completely melt, melts copper caused by stud 1, tin can fuse completely with surrounding molten iron.
Embodiment 3:
Basic content with embodiment 1, the difference is that:
In the meltable stud, mass ratio shared by interior copper body 11 is 99.90% -99.95%, matter shared by outer tin layers 12
Amount is than being 0.05% -0.1%.
The foregoing is merely the better embodiment of the utility model, the protection scope of the utility model is not with above-mentioned reality
The mode of applying is limited, as long as those of ordinary skill in the art's equivalent modification according to made by the utility model disclosure or change
Change, should be included in the scope of the protection described in the claims.
Claims (8)
1. a kind of meltable stud of thin wall iron part, it is characterised in that: the meltable stud includes interior copper body (11) and outer tin layers
(12), the outer tin layers (12) are to be wrapped in the external nonwoven fabric from filaments of interior copper body (11)；The making material of the interior copper body (11) is copper,
The making material of the outer tin layers (12) is tin, and the quality of interior copper body (11) is greater than the quality of outer tin layers (12).
2. a kind of meltable stud of thin wall iron part according to claim 1, it is characterised in that: the outer tin layers (12) wrap up in
Operating procedure in interior copper body (11) outside is plating.
3. a kind of meltable stud of thin wall iron part according to claim 1, it is characterised in that: the outer tin layers (12)
With a thickness of 3-6 μm.
4. a kind of meltable stud of thin wall iron part according to claim 1, it is characterised in that: interior copper body (11) packet
Upper bracket (2), connecting column (3) and undersetting (4) are included, the bottom surface of the upper bracket (2) is through connecting column (3) and undersetting (4)
Top surface vertically connects；The upper bracket (2), undersetting (4) cross section be round, ellipse or polygon.
5. a kind of meltable stud of thin wall iron part according to claim 4, it is characterised in that: the connecting column (3)
Diameter is greater than the thickness of upper bracket (2), undersetting (4).
6. a kind of meltable stud of thin wall iron part according to claim 5, it is characterised in that: the connecting column (3)
External screw thread (31) are provided on side wall, which belongs to interior copper body (11).
7. a kind of meltable stud of thin wall iron part according to claim 5, it is characterised in that: the connecting column (3)
More longitudinal thin slices (32) are provided on side wall, which belongs to interior copper body (11), the inside of longitudinal thin slice (32)
Side is connected with the side wall of connecting column (3), and the outer side edges of longitudinal thin slice (32) extend outwardly, the top of longitudinal thin slice (32) with it is upper
The bottom surface of support (2) is connected, and the bottom end of longitudinal thin slice (32) is connected with the top surface of undersetting (4), all longitudinal thin slices
(32) side wall all around connecting column (3) is evenly arranged.
8. a kind of combination core of the thin wall iron part as claimed in claim 4 where meltable stud, it is characterised in that: the combination
Core includes that upper water sleeve core (5), pole core (6) and stud (1), the quantity of upper water sleeve core (5) are one, pole core (6), stud
(1) quantity is multiple, and pole core (6), stud (1) correspond；It is offered on the top surface of the upper water sleeve core (5) multiple
The top correspondence of the core unit (51) continuously arranged, each core unit (51) is placed with a pole core (6)；
The core unit (51) includes intermediate base body (52) and the No.1 support wall (53) positioned at its two sides, No. two support walls (54), and
The top setting of intermediate base body (52) is above at the top of No.1 support wall (53), No. two support walls (54)；The No.1 support wall (53)
Bottom be connected with the left top of No.1 (551) of No.1 groove (55), the right top of No.1 (552) of No.1 groove (55) in
Between the left side of base body (52) be connected, No. two Zuo Dingduan (561) of the right side of intermediate base body (52) and No. two grooves (56)
It is connected, the right top (562) of No. two of No. two grooves (56) is connected with the bottom of No. two support walls (54), intermediate base body (52)
Lower supporting point (521) is provided on top surface to be supported cooperation with undersetting (4), the stud (1) where the undersetting (4)
The upper supporting point (611) being arranged on upper bracket (2) and core print side wall (61) in corresponding pole core (6) is supported cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822052928.0U CN209532033U (en) | 2018-12-07 | 2018-12-07 | Fusible chaplet for thin-wall iron casting and combined core thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822052928.0U CN209532033U (en) | 2018-12-07 | 2018-12-07 | Fusible chaplet for thin-wall iron casting and combined core thereof |
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| CN209532033U true CN209532033U (en) | 2019-10-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109277538A (en) * | 2018-12-07 | 2019-01-29 | 东风商用车有限公司 | Fusible chaplet for thin-wall iron casting, application method and combined core |
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2018
- 2018-12-07 CN CN201822052928.0U patent/CN209532033U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109277538A (en) * | 2018-12-07 | 2019-01-29 | 东风商用车有限公司 | Fusible chaplet for thin-wall iron casting, application method and combined core |
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