CN109676087A - A kind of casting technique for using shot to cover rouge sand shell core rotor as charges production - Google Patents
A kind of casting technique for using shot to cover rouge sand shell core rotor as charges production Download PDFInfo
- Publication number
- CN109676087A CN109676087A CN201910116566.3A CN201910116566A CN109676087A CN 109676087 A CN109676087 A CN 109676087A CN 201910116566 A CN201910116566 A CN 201910116566A CN 109676087 A CN109676087 A CN 109676087A
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- CN
- China
- Prior art keywords
- shot
- shell
- core
- overlay film
- casting
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Shot is used to cover the casting technique of rouge sand shell core rotor as charges production the invention discloses a kind of, it is related to casting technology field, the following steps are included: step 1: shell core and built-in core is made using precoated sand, is combined into overlay film arenaceous shell with shell core, built-in core is put into overlay film arenaceous shell；Step 2: overlay film arenaceous shell is put into container, and is inserted in container so that shot wraps overlay film arenaceous shell, finally by ram-jolt after shot；Step 3: sprue cup and riser will be placed at the top of overlay film arenaceous shell；Step 4: the iron liquid of spheroidal graphite cast-iron is injected in overlay film arenaceous shell smoothly through sprue cup, moulding by casting；Step 5: after iron liquid is fully cured, casting rotor is obtained.The present invention makes iron liquid accelerate cooling velocity using the fast endothermic and heat transfer chilling action of shot, changes the cooling velocity in cast iron eutectic stage, can change the as-cast structure of cast iron within a large range, keeps cast structure fine and close.
Description
Technical field
The present invention relates to casting technology field more particularly to it is a kind of use shot as charges production cover rouge sand shell core rotor
Casting technique.
Background technique
Hull shape produces casting as a kind of casting technique, can give birth to without investment sand processing, sand mixer, production line
It produces, as long as landfill consolidation, so that it may castable.High production cost, production efficiency are filled with green-sand or furan resin-sand
It is low.Maximum has the disadvantage is that when producing magnesium iron rotor, since sand mold heat dissipation is slow after casting, causes iron liquid cooling velocity after casting
Slowly, casting centre is also easy to produce shrinkage cavity and shrinkage porosite, and metallographic structure and bulk mechanical performance are unqualified.
Summary of the invention
Shot is used to cover the casting technique of rouge sand shell core rotor as charges production the invention proposes a kind of.
To achieve the goals above, present invention employs following technical solutions:
A kind of casting technique for using shot to cover rouge sand shell core rotor as charges production, comprising the following steps:
Step 1: being made shell core and built-in core using precoated sand, is combined into overlay film arenaceous shell with shell core, built-in core is put into and is covered
In film arenaceous shell；
Step 2: overlay film arenaceous shell is put into container, and is inserted in container so that shot wraps overlay film arenaceous shell, most
Afterwards by ram-jolt after shot；
Step 3: sprue cup and riser will be placed at the top of overlay film arenaceous shell；
Step 4: the iron liquid of spheroidal graphite cast-iron is injected in overlay film arenaceous shell smoothly through sprue cup, moulding by casting；
Step 5: after iron liquid is fully cured, casting rotor is obtained.
Further, shell core and built-in core is made using core shooter in the step 1.
Further, shell core is combined in the step 1, and is fixed with binder solid, be combined into precoated sand
Shell.
Further, the specification of the shot in the step 2 is 3-5mm.
Further, the temperature that iron liquid is cast in the step 4 is 1450~1480 DEG C.
Further, the iron liquid casting time in the step 4 is 15S~20S
Further, the spheroidal graphite cast-iron passes through furnace melting.
Further, the container is depending on the size of casting rotor.
Further, ceramic filter screen is provided between sprue cup and overlay film arenaceous shell in the step 3.
Usefulness: the present invention makes iron liquid accelerate cooling velocity using the fast endothermic and heat transfer chilling action of shot, changes
The cooling velocity for becoming the cast iron eutectic stage, can change the as-cast structure of cast iron within a large range, keep cast structure fine and close；It is logical
It crosses shot and solves the shrinkage cavity of magnesium iron internal rotor and shrinkage porosite casting flaw, improve metallographic structure form, improve bulk mechanical
Performance.Internal rotor defect is solved, guarantees casting metallographic structure, stabilizing mechanical performance meets the technical requirements to product.It reduces
Production cost realizes the recycling of shot, meets the technical requirements of casting, while reducing consumption, makes production cost significantly
It reduces.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
In figure: 1 container, 2 overlay film arenaceous shells, 3 casting rotors, 4 shots, 5 ceramic filter screens, 6 sprue cups, core built in 7.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
Embodiment 1:
Referring to Fig.1, a kind of casting technique for using shot 4 to cover rouge sand shell core rotor as charges production, including following step
It is rapid:
Step 1: being made shell core and built-in core 7 using precoated sand, is combined into overlay film arenaceous shell 2 with shell core, and built-in core 7 is put
Enter in overlay film arenaceous shell 2；
Step 2: overlay film arenaceous shell 2 is put into container 1, and is inserted in container 1 so that shot 4 wraps up overlay film arenaceous shell 2
Firmly, finally by ram-jolt after shot 4；
Step 3: sprue cup 6 and riser will be placed at the top of overlay film arenaceous shell 2；
Step 4: the iron liquid of spheroidal graphite cast-iron is injected in overlay film arenaceous shell 2 smoothly through sprue cup 6, moulding by casting；
Step 5: after iron liquid is fully cured, casting rotor 3 is obtained.
The specification of shot 4 in the step 2 is 3mm.The temperature that iron liquid is cast in the step 4 is 1450 DEG C.Institute
Stating the iron liquid casting time in step 4 is 15S.
Embodiment 2:
Referring to Fig.1, a kind of casting technique for using shot 4 to cover rouge sand shell core rotor as charges production, including following step
It is rapid:
Step 1: being made shell core and built-in core 7 using precoated sand, is combined into overlay film arenaceous shell 2 with shell core, and built-in core 7 is put
Enter in overlay film arenaceous shell 2；
Step 2: overlay film arenaceous shell 2 is put into container 1, and is inserted in container 1 so that shot 4 wraps up overlay film arenaceous shell 2
Firmly, finally by ram-jolt after shot 4；
Step 3: sprue cup 6 and riser will be placed at the top of overlay film arenaceous shell 2；
Step 4: the iron liquid of spheroidal graphite cast-iron is injected in overlay film arenaceous shell 2 smoothly through sprue cup 6, moulding by casting；
Step 5: after iron liquid is fully cured, casting rotor 3 is obtained.
Shell core and built-in core 7 is made using core shooter in the step 1.Shell core is combined in the step 1, and
It is fixed with binder solid, is combined into overlay film arenaceous shell 2.The specification of shot 4 in the step 2 is 5mm.In the step 4
The temperature of iron liquid casting is 1480 DEG C.Iron liquid casting time in the step 4 is 20S.
Embodiment 3:
Referring to Fig.1, a kind of casting technique for using shot 4 to cover rouge sand shell core rotor as charges production, including following step
It is rapid:
Step 1: being made shell core and built-in core 7 using precoated sand, is combined into overlay film arenaceous shell 2 with shell core, and built-in core 7 is put
Enter in overlay film arenaceous shell 2；
Step 2: overlay film arenaceous shell 2 is put into container 1, and is inserted in container 1 so that shot 4 wraps up overlay film arenaceous shell 2
Firmly, finally by ram-jolt after shot 4；
Step 3: sprue cup 6 and riser will be placed at the top of overlay film arenaceous shell 2；
Step 4: the iron liquid of spheroidal graphite cast-iron is injected in overlay film arenaceous shell 2 smoothly through sprue cup 6, moulding by casting；
Step 5: after iron liquid is fully cured, casting rotor 3 is obtained.
Shell core and built-in core 7 is made using core shooter in the step 1.Shell core is combined in the step 1, and
It is fixed with binder solid, is combined into overlay film arenaceous shell 2.The specification of shot 4 in the step 2 is 4mm.In the step 4
The temperature of iron liquid casting is 1465 DEG C.Iron liquid casting time in the step 4 is 18S.The spheroidal graphite cast-iron is molten by electric furnace
Change.
Embodiment 4:
Referring to Fig.1, a kind of casting technique for using shot 4 to cover rouge sand shell core rotor as charges production, including following step
It is rapid:
Step 1: being made shell core and built-in core 7 using precoated sand, is combined into overlay film arenaceous shell 2 with shell core, and built-in core 7 is put
Enter in overlay film arenaceous shell 2；
Step 2: overlay film arenaceous shell 2 is put into container 1, and is inserted in container 1 so that shot 4 wraps up overlay film arenaceous shell 2
Firmly, finally by ram-jolt after shot 4；
Step 3: sprue cup 6 and riser will be placed at the top of overlay film arenaceous shell 2；
Step 4: the iron liquid of spheroidal graphite cast-iron is injected in overlay film arenaceous shell 2 smoothly through sprue cup 6, moulding by casting；
Step 5: after iron liquid is fully cured, casting rotor 3 is obtained.In the step 1 using core shooter be made shell core and
Built-in core 7.Shell core is combined in the step 1, and is fixed with binder solid, is combined into overlay film arenaceous shell 2.The step
The specification of shot 4 in rapid two is 3mm.The temperature that iron liquid is cast in the step 4 is 1480 DEG C.Iron in the step 4
Liquid casting time is that spheroidal graphite cast-iron described in 20S passes through furnace melting.The container 1 is depending on the size of casting rotor 3.
Embodiment 5:
Referring to Fig.1, a kind of casting technique for using shot 4 to cover rouge sand shell core rotor as charges production, including following step
It is rapid:
Step 1: being made shell core and built-in core 7 using precoated sand, is combined into overlay film arenaceous shell 2 with shell core, and built-in core 7 is put
Enter in overlay film arenaceous shell 2；
Step 2: overlay film arenaceous shell 2 is put into container 1, and is inserted in container 1 so that shot 4 wraps up overlay film arenaceous shell 2
Firmly, finally by ram-jolt after shot 4；
Step 3: sprue cup 6 and riser will be placed at the top of overlay film arenaceous shell 2；
Step 4: the iron liquid of spheroidal graphite cast-iron is injected in overlay film arenaceous shell 2 smoothly through sprue cup 6, moulding by casting；
Step 5: after iron liquid is fully cured, casting rotor 3 is obtained.
Shell core and built-in core 7 is made using core shooter in the step 1.Shell core is combined in the step 1, and
It is fixed with binder solid, is combined into overlay film arenaceous shell 2.The specification of shot 4 in the step 2 is 5mm.In the step 4
The temperature of iron liquid casting is 1470 DEG C.Iron liquid casting time in the step 4 is 19S.The spheroidal graphite cast-iron is molten by electric furnace
Change.The container 1 is depending on the size of casting rotor 3.It is provided between sprue cup 6 and overlay film arenaceous shell 2 in the step 3
Ceramic filter screen 5.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of casting technique for using shot to cover rouge sand shell core rotor as charges production, which is characterized in that including following step
It is rapid:
Step 1: being made shell core and built-in core using precoated sand, is combined into overlay film arenaceous shell with shell core, and built-in core is put into precoated sand
In shell；
Step 2: overlay film arenaceous shell is put into container, and filling finally will so that shot wraps overlay film arenaceous shell in container
Ram-jolt after shot；
Step 3: sprue cup and riser will be placed at the top of overlay film arenaceous shell；
Step 4: the iron liquid of spheroidal graphite cast-iron is injected in overlay film arenaceous shell smoothly through sprue cup, moulding by casting；
Step 5: after iron liquid is fully cured, casting rotor is obtained.
2. a kind of casting technique for using shot to cover rouge sand shell core rotor as charges production according to claim 1,
It is characterized in that, shell core and built-in core is made using core shooter in the step 1.
3. a kind of casting technique for using shot to cover rouge sand shell core rotor as charges production according to claim 1,
It is characterized in that, is combined shell core in the step 1, and fixed with binder solid, be combined into overlay film arenaceous shell.
4. a kind of casting technique for using shot to cover rouge sand shell core rotor as charges production according to claim 1,
It is characterized in that, the specification of the shot in the step 2 is 3-5mm.
5. a kind of casting technique for using shot to cover rouge sand shell core rotor as charges production according to claim 1,
It is characterized in that, the temperature that iron liquid is cast in the step 4 is 1450~1480 DEG C.
6. a kind of casting technique for using shot to cover rouge sand shell core rotor as charges production according to claim 1,
It is characterized in that, the iron liquid casting time in the step 4 is 15S~20S.
7. a kind of casting technique for using shot to cover rouge sand shell core rotor as charges production according to claim 1,
It is characterized in that, the spheroidal graphite cast-iron passes through furnace melting.
8. a kind of casting technique for using shot to cover rouge sand shell core rotor as charges production according to claim 1,
It is characterized in that, the container is depending on the size of casting rotor.
9. a kind of casting technique for using shot to cover rouge sand shell core rotor as charges production according to claim 1,
It is characterized in that, is provided with ceramic filter screen between sprue cup and overlay film arenaceous shell in the step 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910116566.3A CN109676087A (en) | 2019-02-15 | 2019-02-15 | A kind of casting technique for using shot to cover rouge sand shell core rotor as charges production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910116566.3A CN109676087A (en) | 2019-02-15 | 2019-02-15 | A kind of casting technique for using shot to cover rouge sand shell core rotor as charges production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109676087A true CN109676087A (en) | 2019-04-26 |
Family
ID=66195886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910116566.3A Pending CN109676087A (en) | 2019-02-15 | 2019-02-15 | A kind of casting technique for using shot to cover rouge sand shell core rotor as charges production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109676087A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110343945A (en) * | 2019-08-24 | 2019-10-18 | 浙江瓯赛汽车部件铸造有限公司 | A kind of casting material and resin-coated sand shell mould casting technique |
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| GB819393A (en) * | 1957-04-04 | 1959-09-02 | Bristol Aero Engines Ltd | Improvements in or relating to moulding processes |
| CN104525870A (en) * | 2014-12-11 | 2015-04-22 | 牡丹江金缘钩缓制造有限责任公司 | Manufacturing method of buffer box body |
| CN204639064U (en) * | 2015-04-24 | 2015-09-16 | 南通华东油压科技有限公司 | Hydraulic gyration valve body moulding and mould thereof |
| CN204817921U (en) * | 2015-07-15 | 2015-12-02 | 繁昌县速诚模具机械制造厂 | Tectorial membrane sand shell mold casting device |
| CN106825438A (en) * | 2017-03-13 | 2017-06-13 | 抚州市羊易铸业有限公司 | A kind of casting method of bevel housing |
| CN108356234A (en) * | 2018-03-20 | 2018-08-03 | 溧阳市联华机械制造有限公司 | The plane vertical pouring shell structure of thick big high-Ni-Cr cast iron volute |
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2019
- 2019-02-15 CN CN201910116566.3A patent/CN109676087A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB819393A (en) * | 1957-04-04 | 1959-09-02 | Bristol Aero Engines Ltd | Improvements in or relating to moulding processes |
| CN104525870A (en) * | 2014-12-11 | 2015-04-22 | 牡丹江金缘钩缓制造有限责任公司 | Manufacturing method of buffer box body |
| CN204639064U (en) * | 2015-04-24 | 2015-09-16 | 南通华东油压科技有限公司 | Hydraulic gyration valve body moulding and mould thereof |
| CN204817921U (en) * | 2015-07-15 | 2015-12-02 | 繁昌县速诚模具机械制造厂 | Tectorial membrane sand shell mold casting device |
| CN106825438A (en) * | 2017-03-13 | 2017-06-13 | 抚州市羊易铸业有限公司 | A kind of casting method of bevel housing |
| CN108356234A (en) * | 2018-03-20 | 2018-08-03 | 溧阳市联华机械制造有限公司 | The plane vertical pouring shell structure of thick big high-Ni-Cr cast iron volute |
| CN109108222A (en) * | 2018-10-30 | 2019-01-01 | 潍坊百顺铸业有限公司 | Shell mould carries on the back the casting technique of ball production groove pipe fitting |
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|---|
| 刘云溥等: "《发动机铸造工艺及装备调试》", 30 June 2015, 成都：西南交通大学出版社 * |
| 陆文华: "《铸铁及其熔炼》", 30 April 1981, 北京：机械工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110343945A (en) * | 2019-08-24 | 2019-10-18 | 浙江瓯赛汽车部件铸造有限公司 | A kind of casting material and resin-coated sand shell mould casting technique |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20190426 |