CN206882722U - The sand core structure of casting through hole casting - Google Patents
The sand core structure of casting through hole casting Download PDFInfo
- Publication number
- CN206882722U CN206882722U CN201720770728.1U CN201720770728U CN206882722U CN 206882722 U CN206882722 U CN 206882722U CN 201720770728 U CN201720770728 U CN 201720770728U CN 206882722 U CN206882722 U CN 206882722U
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- China
- Prior art keywords
- hole
- casting
- support tube
- core
- length
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Abstract
It the utility model is related to casting technology field, more particularly to a kind of sand core structure of casting through hole casting, including through hole casting sand type and some blocks of chills, the through hole casting sand type includes support tube and is wrapped in the outer wall core of support pipe outer wall, the length of the support tube is more than or equal to the length of through hole, the length of the outer wall core is equal to the length of through hole, and the one or both ends of the through hole casting sand type set some blocks of chills.The utility model can substantially reduce the temperature of through hole core during cast, avoid sintering, and cleaning is more convenient.
Description
Technical field
It the utility model is related to casting technology field, and in particular to a kind of sand core structure of casting through hole casting.
Background technology
The general wall thickness of air-vent of thick and large casting is 300mm-400mm, vent diameter typically between 80mm-120mm,
For the temperature of cast at 1350 DEG C or so, easily there are whole sintering in core, and the phenomenon that can not be cleared up, solution method has three kinds, its
One, matched using fresh sand and old sand, this method can not thoroughly solve the problems, such as scab；Second, using increase degree of packing method, the party
Method takes time and effort and effect and unobvious；Finally can also coating be used often to go out in the method for core external coating, program coating
Now it is unevenly coated, scab problem still occurs in respective location.
The content of the invention
The defects of for prior art, the utility model proposes the modified technique and core knot of a kind of casting through hole casting
Structure, it, which can reach, avoids scab and better heat-radiation effect.
To reach the effect above, a kind of sand core structure of casting through hole casting of the technical solution of the utility model, it includes
Through hole casting sand type and some blocks of chills, the through hole casting sand type include support tube and are wrapped in the outer wall sand of support pipe outer wall
Core, the length of the support tube are more than or equal to the length of through hole, and the length of the outer wall core is equal to the length of through hole, described
The one or both ends of through hole casting sand type set some blocks of chills.
Preferably, the external diameter of outer wall core is equal to the external diameter of through hole to be processed, and the diameter of the support tube is more than or equal to
Half through-hole diameter to be processed, and it is less than through-hole diameter to be processed.
Preferably, support tube is the tubular structure with through hole, and it is iron pipe, and its both ends contacts with chill respectively, and it is logical
Center core is set in hole, and the center core is connected with peripheral core.
Preferably, the thickness of the chill is more than or equal to the length of half through hole to be processed.
Preferably, some blocks of chills are a monoblock ring-type chill, and it is to be processed that its thickness is more than or equal to half
The length of through hole, its inner ring surface are in close contact with the support tube end outer wall.Further, the support tube is hollow iron
Pipe.
Using modified technique of the present utility model, it is comprised the following steps that：
Step 1：Manufacture diameter is more than or equal to half through-hole diameter to be processed, and less than through-hole diameter to be processed
Support tube；
Step 2：In support tube periphery parcel casting model powder, the through hole for obtaining diameter equal to through-hole diameter to be processed is cast
Sand mold；
Step 3：Lay some blocks of chills respectively in the top and bottom of through hole casting sand type；
Step 4：Poured into a mould.
Preferably, around chill laying and through hole.
Preferably, the support tube is core iron, and the chill contacts placement with the core iron.
The beneficial effects of the utility model：The utility model can substantially reduce the temperature of through hole core during cast, keep away
Sintering is exempted from, cleaning is more convenient.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of processing Cooling Holes；
In figure：1st, chill, 2, through hole, 3, support tube, 4, outer wall core, 5, center core, 6, peripheral core.
Embodiment
Embodiment 1
The technical scheme of this patent is described in more detail with reference to embodiment.
A kind of modified technique of casting through hole casting, it is comprised the following steps that：
Step 1：Manufacture diameter is more than or equal to the half diameter of through hole 2 to be processed, and is less than through-hole diameter to be processed
Support tube 3；
Step 2：In the periphery of the support tube 3 parcel casting model powder, the through hole for obtaining diameter equal to the diameter of through hole 2 to be processed is cast
Make sand mold；
Step 3：Lay some blocks of chills 1 respectively in the top and bottom of through hole casting sand type；
Step 4：Poured into a mould.
Preferably, around the chill 1 laying and through hole.
Preferably, the support tube 3 is core iron, and the chill 1 contacts placement with the core iron.
As shown in figure 1, the sand core structure that a kind of casting through hole 2 is cast, it includes through hole casting sand type and some blocks of chills
1, the through hole casting sand type includes support tube 3 and is wrapped in the outer wall core 4 of support pipe outer wall, the length of the support tube 3
More than or equal to the length of through hole 2, the length of the outer wall core 4 is equal to the length of through hole 2, and the two of the through hole casting sand type
End sets some blocks of chills 1 respectively.
Preferably, the external diameter of outer wall core 4 is equal to the external diameter of through hole 2 to be processed, and the diameter of the support tube 3 is more than or waited
In the half diameter of through hole 2 to be processed, and it is less than the diameter of through hole 2 to be processed.
Preferably, support tube 3 is the tubular structure with through hole, and it is iron pipe, and its both ends contacts with chill 1 respectively.In
Between the through hole of support tube 3 can play thermolysis, heat is gradually transferred to the big chill 1 of thickness at both ends by iron pipe afterwards,
Heat is progressively dissipated away afterwards, and support tube 3 can play a part of support, avoid scab phenomenon, even if just in case occurring
Scab phenomenon, only outer wall core 4 can be overheated and burnt, and support tube 3 and center core 5 can stand intact, and follow-up cleaning only needs
Knock out center core 5 and take out support tube 3.
Preferably, the thickness of the chill 1 is more than or equal to the length of half through hole 2 to be processed.
Preferably, some blocks of chills 1 are a monoblock ring-type chill, and it is to be processed that its thickness is more than or equal to half
The length of through hole, its inner ring surface are in close contact with the end outer wall of support tube 3.Further, the support tube 2 is hollow
Iron pipe, center core 5 is set, the center core 5 is connected with peripheral core 6, as shown in Figure 1 in its through hole.
Embodiment 2
The technical scheme of this patent is described in more detail with reference to embodiment.
As shown in Fig. 2 processing Cooling Holes using the utility model, modified technique comprises the following steps that：
Step 1：Manufacture diameter is more than or equal to half through hole 2 to be processed（Cooling Holes）Diameter, and less than to be processed
Through hole 2（Cooling Holes）The support tube 3 of diameter；
Step 2：The through hole filling casting model powder in the periphery of the support tube 3 parcel casting model powder, support tube 3, obtains diameter etc.
In the through hole casting sand type of the diameter of through hole 2 to be processed；
Step 3：Some blocks of chills 1 are laid in the upper end of through hole casting sand type；
Step 4：Poured into a mould.
Preferably, around the chill 1 laying and through hole.
Preferably, the support tube 3 is core iron, and the chill 1 contacts placement with the core iron.
On the other hand, the utility model proposes a kind of sand core structure of casting through hole 2 casting, it includes through hole casting sand type
With some blocks of chills 1, the through hole casting sand type include support tube 3 and be wrapped in support pipe outer wall outer wall core 4 also have in
The center core 5 of heart through hole, the length of the support tube 3 are more than or equal to the length of through hole 2, the length of the outer wall core 4
Equal to the length of through hole 2, the center core 5 is connected with peripheral core 6, and the upper end setting of the through hole casting sand type is some
Block chill 1.
Preferably, the external diameter of outer wall core 4 is equal to the external diameter of through hole 2 to be processed, and the diameter of the support tube 3 is more than or waited
In the half diameter of through hole 2 to be processed, and it is less than the diameter of through hole 2 to be processed.
Preferably, support tube 3 is the tubular structure with through hole, and it is iron pipe, and its both ends contacts with chill 1 respectively.In
Between the through hole of support tube 3 can play thermolysis, heat is gradually transferred to the big chill 1 of thickness at both ends by iron pipe afterwards,
Heat is progressively dissipated away afterwards, and support tube 3 can play a part of support, avoid scab phenomenon, even if just in case occurring
Scab phenomenon, only outer wall core 4 can be overheated and burnt, and support tube 3 and center core 5 can stand intact, and follow-up cleaning only needs
Knock out center core 5 and take out support tube 3.
Preferably, the thickness of the chill 1 is more than or equal to the length of half through hole 2 to be processed.
Preferably, some blocks of chills 1 are a monoblock ring-type chill, and it is to be processed that its thickness is more than or equal to half
The length of through hole, its inner ring surface are in close contact with the end outer wall of support tube 3.Further, the support tube 2 is hollow
Iron pipe, center core 5 is set, the center core 5 is connected with peripheral core 6, as shown in Figure 1 in its through hole.
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, can also be on the premise of this patent objective not be departed from one skilled in the relevant art's possessed knowledge
Various changes can be made.
Claims (4)
1. the sand core structure of casting through hole casting, it is characterised in that：Including through hole casting sand type and some blocks of chills, the through hole
Casting sand type includes support tube and is wrapped in the outer wall core of support pipe outer wall, and the length of the support tube is more than or equal to through hole
Length, the length of the outer wall core is equal to the length of through hole, and the one or both ends of the through hole casting sand type set some
Block chill.
2. the sand core structure of casting through hole casting according to claim 1, it is characterised in that：The external diameter of outer wall core is equal to
The external diameter of through hole to be processed；The diameter of the support tube is more than or equal to half through-hole diameter to be processed, and less than to be added
Work through-hole diameter.
3. the sand core structure of casting through hole casting according to claim 1, it is characterised in that：Support tube is with through hole
Tubular structure, it is iron pipe, and its both ends contacts with chill respectively, and center core is set in its through hole.
4. the sand core structure of casting through hole casting according to claim 1, it is characterised in that：The support tube is hollow iron
Pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720770728.1U CN206882722U (en) | 2017-06-29 | 2017-06-29 | The sand core structure of casting through hole casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720770728.1U CN206882722U (en) | 2017-06-29 | 2017-06-29 | The sand core structure of casting through hole casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206882722U true CN206882722U (en) | 2018-01-16 |
Family
ID=61298795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720770728.1U Expired - Fee Related CN206882722U (en) | 2017-06-29 | 2017-06-29 | The sand core structure of casting through hole casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206882722U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107282891A (en) * | 2017-06-29 | 2017-10-24 | 大连金河铸造有限公司 | The modified technique and sand core structure of casting through hole casting |
-
2017
- 2017-06-29 CN CN201720770728.1U patent/CN206882722U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107282891A (en) * | 2017-06-29 | 2017-10-24 | 大连金河铸造有限公司 | The modified technique and sand core structure of casting through hole casting |
| CN107282891B (en) * | 2017-06-29 | 2024-02-02 | 大连金河铸造有限公司 | Improved casting process of casting through hole and sand core structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180116 Termination date: 20200629 |