CN108705040A - A kind of technique of shell mould method production automobile steering device shell - Google Patents
A kind of technique of shell mould method production automobile steering device shell Download PDFInfo
- Publication number
- CN108705040A CN108705040A CN201810555295.7A CN201810555295A CN108705040A CN 108705040 A CN108705040 A CN 108705040A CN 201810555295 A CN201810555295 A CN 201810555295A CN 108705040 A CN108705040 A CN 108705040A
- Authority
- CN
- China
- Prior art keywords
- shell
- shell mould
- mould
- steering device
- automobile steering
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
- B22C9/068—Semi-permanent moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/082—Sprues, pouring cups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/086—Filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/088—Feeder heads
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The present invention relates to automobile steering device shell processing technique fields.It is designed to provide a kind of technique of shell mould method production automobile steering device shell, the labor intensity that yield rate can greatly be improved, reduce staff.The technical solution adopted in the present invention is：A kind of technique of shell mould method production automobile steering device shell, includes the following steps：A, mold manufacturing；B, shell mould makes；C, the assembling of shell mould；D, case is buried；E, it pours into a mould；F, it demoulds；G, cleaning polishing；The present invention has abandoned traditional sand casting, and is processed to automobile steering device shell using shell mould method, and the precision and presentation quality of product are greatly improved；Yield rate higher, the labor intensity for reducing staff.
Description
Technical field
The present invention relates to automobile steering device shell processing technique fields, and in particular to a kind of shell mould method production automobile steering device
The technique of shell.
Background technology
The blank manufacture of China's automobile steering device shell mostly uses traditional sand casting, but traditional sand casting at present
The finished product rate of production is low, under the increasingly tighter requirement of market demands, much can not meet customer requirement.Meanwhile
Since traditional sand casting can only be cast in the process of automobile steering device shell by lateral ingate, by
In the defect of lateral ingate, cause product shrinkage big, cast gate is begun to crop up seriously, and often the material of 10KG can only produce 6KG
Finished product, yield rate is extremely low.In addition, the automobile steering device shell that the mode of existing sand casting produces is due to operator's
Operation is horizontal irregular, and product uniformity is poor, has seriously affected the overall quality of product.
Invention content
The purpose of the present invention is to provide the techniques that a kind of shell mould method produces automobile steering device shell, can greatly improve
Yield rate, the labor intensity for reducing staff.
For achieving the above object, the technical solution adopted in the present invention is：A kind of shell mould method production automobile steering device
The technique of shell, includes the following steps：
A, mold manufacturing：
According to client provide product design drawing manufacture cast iron precoated sand mold, cast iron precoated sand mold by upper mold,
Lower mold and core mold are constituted；The cast gate corresponding position of cast iron precoated sand mold uses from top to bottom right over product
Gradually smaller conical vertical design；Cast gate corresponds to the height in portion between 100-150mm, a diameter of Φ at the most narrow place in lower end
60mm；
B, shell mould makes：
Cast iron precoated sand mold is mounted on horizontal core shooter, and at processing shell mould left shell half and right half-shell, it is horizontal
The operating temperature of core shooter is controlled at 200 DEG C, and the shell sand for constituting shell mould uses granularity for the precoated sand of 150 mesh；
C, the assembling of shell mould：
The left shell half of shell mould and right half-shell are combined using iron wire binding or are combined using clamping plate clamping；
D, case is buried：
The shell mould that combination is completed is buried using the normal sands being sufficiently humidified so as to, only reserves the cast gate at top, the mistake of burial
The degree of packing is ensured in journey, prevents the quick-fried type of shell mould；
E, it pours into a mould：
It is poured into a mould for 1500 DEG C according to magnesium iron leaving water temperature；
F, it demoulds；
G, cleaning polishing：
It is first tentatively polished die joint, laggard shot-blasting machine carries out Shot Blasting, the shot size that Shot Blasting uses
For Φ 1.5, time 15-20 minute.
Preferably, the cast gate corresponds to and is provided with annular groove, annular groove at distance product apical side height 50mm in portion
After shell mould completes, the seam allowance of annular is formed in the gate location of shell mould, is constituted positioned at the region on seam allowance top in cast gate
Vat-net installation site；When carrying out shell mould assembling, strainer is installed in vat-net installation site, strainer is using diameter of phi 60mm, thickness
Spend the foam ceramic filter of 12mm.
Preferably, between step C and step B, releasing agent is sprayed to the inner surface of left shell half and right half-shell using spray gun.
Beneficial effects of the present invention embody a concentrated reflection of,
1, traditional sand casting has been abandoned, and automobile steering device shell has been processed using shell mould method, the essence of product
Degree and presentation quality are greatly improved.
2, it is vertical cast gate to change runner gate, reduces the degree of cast gate riser, yield rate higher, by traditional 60% or so
It is increased to 90% or more.
3, shell mould is made with horizontal core shooter, greatly reduces the labor intensity of staff, improves the essence of product
Degree.
Description of the drawings
Fig. 1 is the structural schematic diagram of cast iron precoated sand mold；
Fig. 2 is the structural schematic diagram of cast gate.
Specific implementation mode
A kind of technique of shell mould method production automobile steering device shell as shown in Figs. 1-2, includes the following steps：
A, mold manufacturing：
According to client provide product design drawing manufacture cast iron precoated sand mold, cast iron precoated sand mold by upper mold,
Lower mold and core mold are constituted.The cast gate of cast iron precoated sand mold corresponds to portion 2 and is located at right over product, and using by up to
Under the design of gradually smaller conical vertical.Cast gate corresponds to the height in portion 2 between 100-150mm, the most narrow place in lower end it is a diameter of
Φ60mm。
B, shell mould makes：
Cast iron precoated sand mold is mounted on horizontal core shooter, and at processing shell mould left shell half and right half-shell, it is horizontal
The operating temperature of core shooter is controlled at 200 DEG C, and the shell sand for constituting shell mould uses granularity for the precoated sand of 150 mesh.
C, the assembling of shell mould：
The left shell half of shell mould and right half-shell are combined using iron wire binding or are combined using clamping plate clamping.In order to
So that product is more easy demoulding, before shell mould assembling, better way is to utilize spray gun into left shell half and right half-shell
Spray releasing agent in surface.
D, case is buried：
The shell mould that combination is completed is buried using the normal sands being sufficiently humidified so as to, only reserves the cast gate 1 at top, the mistake of burial
The degree of packing is ensured in journey, prevents the quick-fried type of shell mould.
E, it pours into a mould：
It is poured into a mould for 1500 DEG C according to magnesium iron leaving water temperature.
F, it demoulds.
G, cleaning polishing：
It is first tentatively polished die joint, laggard shot-blasting machine carries out Shot Blasting, the shot size that Shot Blasting uses
For Φ 1.5, time 15-20 minute.
The present invention has abandoned traditional sand casting, and is processed to automobile steering device shell using shell mould method, product
Precision and presentation quality be greatly improved.It is vertical cast gate to change runner gate, reduces the degree of cast gate riser, yield rate
Higher is increased to 90% or more by traditional 60% or so.Shell mould is made with horizontal core shooter, greatly reduces staff
Labor intensity, improve the precision of product.
Embodiment one
It takes in 1 ton just now, the processing of automobile steering device shell is carried out according to conventional sand casting process, one-pass molding is closed
The yield rate of lattice product 65, the weight about 10KG of each qualified products, product is 65%.
Embodiment two
It takes in 1 ton just now, the processing of automobile steering device shell, one-pass molding is carried out according to shell mould method of the present invention
The yield rate of qualified products 92, the weight about 10KG of each qualified products, product is 92%.
Embodiment three
It takes in 1 ton just now, the processing of automobile steering device shell is carried out according to shell mould method of the present invention, but distinguish it
Be in use horizontal type gate design, one-pass molding qualified products 83, the weight about 10KG of each qualified products, product at
Product rate is 83%.
In addition, the present invention has during cast in order to prevent in the cavity that impurity enters shell mould, better way is,
The cast gate, which corresponds to, is provided with annular groove 3 at distance product apical side height 50mm in portion 2, annular groove 3 has made in shell mould
Cheng Hou forms the seam allowance 4 of annular in 1 position of cast gate of shell mould, and constituting vat-net positioned at the region on 4 top of seam allowance in cast gate 1 installs
Position.When carrying out shell mould assembling, strainer is installed in vat-net installation site, strainer is using diameter of phi 60mm, thickness 12mm
Foam ceramic filter.
Claims (3)
1. a kind of technique of shell mould method production automobile steering device shell, which is characterized in that include the following steps：
A, mold manufacturing：
Cast iron precoated sand mold is manufactured according to the product design drawing that client provides, cast iron precoated sand mold is by upper mold, lower die
Tool and core mold are constituted；The cast gate of cast iron precoated sand mold corresponds to portion (2) and is located at right over product, and using from top to bottom by
The small conical vertical design of gradual change；Cast gate corresponds to the height in portion (2) between 100-150mm, a diameter of Φ at the most narrow place in lower end
60mm；
B, shell mould makes：
By cast iron precoated sand mold be mounted on horizontal core shooter on, and at processing shell mould left shell half and right half-shell, horizontal core shooting
The operating temperature of machine is controlled at 200 DEG C, and the shell sand for constituting shell mould uses granularity for the precoated sand of 150 mesh；
C, the assembling of shell mould：
The left shell half of shell mould and right half-shell are combined using iron wire binding or are combined using clamping plate clamping；
D, case is buried：
The shell mould that combination is completed is buried using the normal sands being sufficiently humidified so as to, only reserves the cast gate (1) at top, the process of burial
In ensure the degree of packing, prevent the quick-fried type of shell mould；
E, it pours into a mould：
It is poured into a mould for 1500 DEG C according to magnesium iron leaving water temperature；
F, it demoulds；
G, cleaning polishing：
It is first tentatively polished die joint, laggard shot-blasting machine carries out Shot Blasting, and the shot size that Shot Blasting uses is Φ
1.5, time 15-20 minute.
2. the technique of shell mould method production automobile steering device shell according to claim 1, it is characterised in that：The cast gate pair
Answer and be provided with annular groove (3) in portion (2) at distance product apical side height 50mm, annular groove (3) after shell mould completes,
The seam allowance (4) of annular is formed in cast gate (1) position of shell mould, constituting vat-net positioned at the region on seam allowance (4) top in cast gate (1) pacifies
Holding position；When carrying out shell mould assembling, strainer is installed in vat-net installation site, strainer uses diameter of phi 60mm, thickness 12mm
Foam ceramic filter.
3. the technique of shell mould method production automobile steering device shell according to claim 2, it is characterised in that：Step C with
Between step B, releasing agent is sprayed to the inner surface of left shell half and right half-shell using spray gun.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810555295.7A CN108705040A (en) | 2018-06-01 | 2018-06-01 | A kind of technique of shell mould method production automobile steering device shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810555295.7A CN108705040A (en) | 2018-06-01 | 2018-06-01 | A kind of technique of shell mould method production automobile steering device shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108705040A true CN108705040A (en) | 2018-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810555295.7A Pending CN108705040A (en) | 2018-06-01 | 2018-06-01 | A kind of technique of shell mould method production automobile steering device shell |
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| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109158536A (en) * | 2018-10-29 | 2019-01-08 | 扬州广润机械有限公司 | A kind of casting technique of preventing car magnesium iron steering gear housing casting leakage |
| CN109719255A (en) * | 2018-10-29 | 2019-05-07 | 扬州广润机械有限公司 | A kind of flywheel shell of engine tide mould sand build-in function film covered sand core casting technique |
| CN109940127A (en) * | 2019-04-23 | 2019-06-28 | 远大阀门集团有限公司 | A kind of precoated sand casting technique of cast steel valve |
| CN111318652A (en) * | 2020-03-07 | 2020-06-23 | 淄博宝来霖机械铸造有限公司 | Steering knuckle shell casting process for special vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949585A (en) * | 2014-05-21 | 2014-07-30 | 贵阳百德铸造有限公司 | Precoated sand shell mold forming method |
| CN106001453A (en) * | 2016-07-13 | 2016-10-12 | 东港市永盛铸造有限公司 | Method for casting large-scale box type castings through precoated sand shell mold |
| CN106623806A (en) * | 2017-01-19 | 2017-05-10 | 溧阳市万盛铸造有限公司 | Casting foundry process |
| CN106734917A (en) * | 2016-11-30 | 2017-05-31 | 邢振国 | A kind of iron sand shell moulded casting method |
| CN107774903A (en) * | 2016-08-26 | 2018-03-09 | 青岛天地铸造有限公司 | A kind of method of resin-coated sand shell mould production casting |
-
2018
- 2018-06-01 CN CN201810555295.7A patent/CN108705040A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949585A (en) * | 2014-05-21 | 2014-07-30 | 贵阳百德铸造有限公司 | Precoated sand shell mold forming method |
| CN106001453A (en) * | 2016-07-13 | 2016-10-12 | 东港市永盛铸造有限公司 | Method for casting large-scale box type castings through precoated sand shell mold |
| CN107774903A (en) * | 2016-08-26 | 2018-03-09 | 青岛天地铸造有限公司 | A kind of method of resin-coated sand shell mould production casting |
| CN106734917A (en) * | 2016-11-30 | 2017-05-31 | 邢振国 | A kind of iron sand shell moulded casting method |
| CN106623806A (en) * | 2017-01-19 | 2017-05-10 | 溧阳市万盛铸造有限公司 | Casting foundry process |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109158536A (en) * | 2018-10-29 | 2019-01-08 | 扬州广润机械有限公司 | A kind of casting technique of preventing car magnesium iron steering gear housing casting leakage |
| CN109719255A (en) * | 2018-10-29 | 2019-05-07 | 扬州广润机械有限公司 | A kind of flywheel shell of engine tide mould sand build-in function film covered sand core casting technique |
| CN109158536B (en) * | 2018-10-29 | 2020-05-05 | 扬州广润机械有限公司 | Casting process for preventing leakage of automobile ductile iron steering gear shell casting |
| CN109719255B (en) * | 2018-10-29 | 2023-09-05 | 扬州广润机械有限公司 | Casting process of engine flywheel housing wet-molded sand built-in functional precoated sand core |
| CN109940127A (en) * | 2019-04-23 | 2019-06-28 | 远大阀门集团有限公司 | A kind of precoated sand casting technique of cast steel valve |
| CN111318652A (en) * | 2020-03-07 | 2020-06-23 | 淄博宝来霖机械铸造有限公司 | Steering knuckle shell casting process for special vehicle |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20181026 |