CN109834226A - A kind of alloy casting composite core and preparation method thereof - Google Patents
A kind of alloy casting composite core and preparation method thereof Download PDFInfo
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- CN109834226A CN109834226A CN201711194676.9A CN201711194676A CN109834226A CN 109834226 A CN109834226 A CN 109834226A CN 201711194676 A CN201711194676 A CN 201711194676A CN 109834226 A CN109834226 A CN 109834226A
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- core
- outer shape
- raw material
- shape layer
- mass parts
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- 238000005266 casting Methods 0.000 title claims abstract description 21
- 239000002131 composite material Substances 0.000 title claims abstract description 19
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 16
- 239000000956 alloy Substances 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000002994 raw material Substances 0.000 claims abstract description 32
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 14
- 229910001570 bauxite Inorganic materials 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003365 glass fiber Substances 0.000 claims abstract description 7
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 7
- 239000010440 gypsum Substances 0.000 claims abstract description 7
- 229910052742 iron Inorganic materials 0.000 claims abstract description 7
- 150000003839 salts Chemical class 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract 2
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000008595 infiltration Effects 0.000 claims description 4
- 238000001764 infiltration Methods 0.000 claims description 4
- 238000007605 air drying Methods 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 2
- 238000011049 filling Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 6
- 238000000465 moulding Methods 0.000 abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 abstract description 3
- 239000004576 sand Substances 0.000 abstract description 3
- 229910001069 Ti alloy Inorganic materials 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Landscapes
- Mold Materials And Core Materials (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The present invention provides a kind of alloy casting composite core and preparation method thereof, comprising: outer shape layer and inner core；The outer shape layer wraps up inner core, and the core is whole for enhanced type core；The outer shape layer and inner core are cylindricality；The raw material of the outer shape layer includes: gypsum, water soluble salt, silica, bauxite, quartz glass, glass fibre, silica solution；The raw material of the inner core includes: bauxite, the iron wire that diameter is 31mm；A kind of preparation method of alloy casting composite core includes: to carry out the raw material mixing of outer shape layer and inner core respectively, and mixed outer shape layer raw material is uniformly inserted five steps such as the female die of core mold, tamping；The material of main part of composite core production of the invention is bauxite sand, and the cost of material is low, and manufacturing process is simpler, carries out hand moulding using wooden model or aluminum die, cost of manufacture and difficulty are influenced small, type core high yield rate by type core size.
Description
Technical field
The present invention relates to alloy casting technology fields, and in particular to a kind of alloy casting composite core and its preparation side
Method.
Background technique
With the rapid development in the fields such as Aeronautics and Astronautics, naval vessel, weapons, petrochemical industry, for the titanium and titanium of complex-shaped surface mould
Alloy-steel casting demand is also more and more.Currently, titanium alloy casting complex-shaped surface mould mainly by the method for Y2O3 ceramic core come
Molding, but type core preparation cost is high.
Patent CN102989994A proposes a kind of Ti alloy casting composite core preparation method of low cost, the patent
Type core blank by mass percent be 35%~44.7% mullite powder, 43%~54.7%A2O3,0.1%~0.3%CaO and
5%~12% silica solution is prepared, using the standby type core blank intensity difference of the patent system, especially the type core of slim-lined construction,
The thermal shock resistance properties of frangibility or cracking during the preparation process, high rejection rate, type core melts of titanium alloy resistant to high temperatures is poor, and after casting
The removing of type core is difficult, limits the popularization of titanium or titanium alloy casting low-cost type core.
Summary of the invention
The invention provides the following technical scheme: a kind of alloy casting composite core and preparation method thereof, comprising: external shape
Shape layer and inner core；The outer shape layer wraps up inner core, and the core is whole for enhanced type core；The external shape
Shape layer and inner core are cylindricality；The raw material of the outer shape layer includes: gypsum, water soluble salt, silica, bauxite, stone
English glass, glass fibre, silica solution；The raw material of the inner core includes: bauxite, the iron wire that diameter is 31mm.
Further, the raw material of the outer shape layer includes: 60-85 mass parts gypsum, 16-25 mass parts in mass ratio
Water soluble salt, 10-30 mass parts silica, 10-20 mass parts bauxite, 5-10 mass parts quartz glass, 5-10 mass parts glass
Fiber, 5-10 mass parts silica solution；The raw material of the inner core includes: 80-90 mass parts bauxite, 10-20 in mass ratio
Mass parts diameter is the iron wire of 31mm.
A kind of alloy casting preparation method of composite core, include the following steps: (1) carry out respectively outer shape layer and
The raw material of inner core mixes, and mixed outer shape layer raw material is uniformly inserted to female die, the tamping of core mold；
(2) mixed inner core raw material is filled at the center of female die, the upper mold section of core mold is covered after tamping；(3) again will
The raw material of mixed outer shape layer fills up inner space and the tamping of core mold, is removed from the molds after core hardening,
And 0.5-1h is dried under the conditions of 80-100 DEG C, then dry 2-3h under the conditions of 300 DEG C；(4) with infiltration or brush after core baking
Coating is formed on its surface the film that discharges water；(5) natural air drying or at 100 DEG C it is obtained by drying.
The beneficial effects of the present invention are: the material of main part that composite core of the invention makes is bauxite sand, material cost
Low, manufacturing process is simpler, carries out hand moulding using wooden model or aluminum die, cost of manufacture and difficulty are influenced by type core size
It is small, type core high yield rate.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of alloy casting composite core in the embodiment of the present invention.
Wherein, 1, outer shape layer；2, inner core.
Specific embodiment
A specific embodiment of the invention is described in detail with reference to the accompanying drawing:
Embodiment 1:
The present invention provides a kind of alloy casting composite core and preparation method thereof, comprising: outer shape layer and inner core
Portion；The outer shape layer wraps up inner core, and the core is whole for enhanced type core；The outer shape layer and inner core
Portion is cylindricality；The raw material of the outer shape layer includes: 60 mass parts gypsum, 16 mass of water-soluble salt, 10 in mass ratio
Mass parts silica, 10 mass parts bauxites, 5 mass parts quartz glass, 5 mass parts glass fibres, 5 mass parts silica solution；It is described
The raw material of inner core includes: 80 mass parts bauxites, the iron wire that 10 mass parts diameters are 31mm in mass ratio.
A kind of alloy casting preparation method of composite core, include the following steps: (1) carry out respectively outer shape layer and
The raw material of inner core mixes, and mixed outer shape layer raw material is uniformly inserted to female die, the tamping of core mold；
(2) mixed inner core raw material is filled at the center of female die, the upper mold section of core mold is covered after tamping；(3) again will
The raw material of mixed outer shape layer fills up inner space and the tamping of core mold, is removed from the molds after core hardening,
And 0.5h is dried under the conditions of 80 DEG C, then dry 2h under the conditions of 300 DEG C；(4) use infiltration or spread coating at it after core baking
Surface forms the film that discharges water；(5) natural air drying to obtain the final product.
Embodiment 2:
A kind of alloy casting composite core and preparation method thereof, comprising:: outer shape layer and inner core；It is described outer
Portion's shape layers wrap up inner core, and the core is whole for enhanced type core；The outer shape layer and inner core are column
Shape；The raw material of the outer shape layer includes: 85 mass parts gypsum, 25 mass of water-soluble salt, 30 mass parts silicon in mass ratio
Stone, 20 mass parts bauxites, 10 mass parts quartz glass, 10 mass parts glass fibres, 10 mass parts silica solution；The inner core
The raw material in portion includes: 90 mass parts bauxites, the iron wire that 20 mass parts diameters are 31mm in mass ratio.
A kind of alloy casting preparation method of composite core, include the following steps: (1) carry out respectively outer shape layer and
The raw material of inner core mixes, and mixed outer shape layer raw material is uniformly inserted to female die, the tamping of core mold；
(2) mixed inner core raw material is filled at the center of female die, the upper mold section of core mold is covered after tamping；(3) again will
The raw material of mixed outer shape layer fills up inner space and the tamping of core mold, is removed from the molds after core hardening,
And 1h is dried under the conditions of 100 DEG C, then dry 3h under the conditions of 300 DEG C；(4) use infiltration or spread coating in its table after core baking
Face forms the film that discharges water；(5) obtained by drying under the conditions of 100 DEG C.
The beneficial effects of the present invention are: the material of main part that composite core of the invention makes is bauxite sand, material cost
Low, manufacturing process is simpler, carries out hand moulding using wooden model or aluminum die, cost of manufacture and difficulty are influenced by type core size
It is small, type core high yield rate.
The present invention is not limited to examples detailed above, in claims of the present invention limited range, art technology
The various deformations or amendments that personnel can make without creative work are protected by this patent.
Claims (3)
1. a kind of alloy casting composite core characterized by comprising outer shape layer and inner core；The external shape
Shape layer wraps up inner core, and the core is whole for enhanced type core；The outer shape layer and inner core are cylindricality；Institute
The raw material for stating outer shape layer includes: gypsum, water soluble salt, silica, bauxite, quartz glass, glass fibre, silica solution；Institute
The raw material for stating inner core includes: bauxite, the iron wire that diameter is 31mm.
2. a kind of alloy casting composite core according to claim 1, which is characterized in that the outer shape layer
Raw material in mass ratio include: 60-85 mass parts gypsum, 16-25 mass of water-soluble salt, 10-30 mass parts silica, 10-20
Mass parts bauxite, 5-10 mass parts quartz glass, 5-10 mass parts glass fibre, 5-10 mass parts silica solution；The inside
The raw material of core includes: 80-90 mass parts bauxite, the iron wire that 10-20 mass parts diameter is 31mm in mass ratio.
3. the preparation method that composite core is used in a kind of alloy casting according to claims 1 and 2, which is characterized in that including
Following steps: (1) carrying out the raw material mixing of outer shape layer and inner core respectively, and by mixed outer shape layer raw material
The uniformly female die of filling core mold, tamping；(2) mixed inner core raw material, tamping are filled at the center of female die
The upper mold section of core mold is covered afterwards；(3) raw material of mixed outer shape layer is filled up to the inner space of core mold again
And consolidate, it is removed from the molds after core hardening, and 0.5-1h is dried under the conditions of 80-100 DEG C, then dried under the conditions of 300 DEG C
Dry 2-3h；(4) film that discharges water is formed on its surface with infiltration or spread coating after core baking；(5) it natural air drying or is dried at 100 DEG C
It does to obtain the final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711194676.9A CN109834226A (en) | 2017-11-24 | 2017-11-24 | A kind of alloy casting composite core and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711194676.9A CN109834226A (en) | 2017-11-24 | 2017-11-24 | A kind of alloy casting composite core and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109834226A true CN109834226A (en) | 2019-06-04 |
Family
ID=66877393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711194676.9A Withdrawn CN109834226A (en) | 2017-11-24 | 2017-11-24 | A kind of alloy casting composite core and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109834226A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110834071A (en) * | 2019-10-30 | 2020-02-25 | 西安交通大学 | A kind of casting molding method of heat exchanger |
-
2017
- 2017-11-24 CN CN201711194676.9A patent/CN109834226A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110834071A (en) * | 2019-10-30 | 2020-02-25 | 西安交通大学 | A kind of casting molding method of heat exchanger |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190604 |
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| WW01 | Invention patent application withdrawn after publication |