CN106694803A - Method for increasing strength of large-sized rapid formation sand mould - Google Patents
Method for increasing strength of large-sized rapid formation sand mould Download PDFInfo
- Publication number
- CN106694803A CN106694803A CN201611079360.0A CN201611079360A CN106694803A CN 106694803 A CN106694803 A CN 106694803A CN 201611079360 A CN201611079360 A CN 201611079360A CN 106694803 A CN106694803 A CN 106694803A
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- China
- Prior art keywords
- sand mold
- sand
- steelframe
- blank
- forming
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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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- 239000004576 sand Substances 0.000 title claims abstract description 147
- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000015572 biosynthetic process Effects 0.000 title abstract 2
- 239000011347 resin Substances 0.000 claims abstract description 17
- 229920005989 resin Polymers 0.000 claims abstract description 17
- 238000005266 casting Methods 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 238000000465 moulding Methods 0.000 claims abstract description 3
- 238000003801 milling Methods 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 230000003044 adaptive effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention discloses a method for increasing the strength of a large-sized rapid formation sand mould. The method comprises manufacturing of a sand mould workblank and digitalized die-free casting molding, wherein the manufacturing of a sand mould workblank comprises mixing casting raw sand with resin proportionally, and pouring into a sand frame to form the sand mould workblank, the manufacturing of the sand mould workblank further comprises a step of pre-embedding a steel frame in the sand frame, and the steel frame is adaptive to the sand mould workblank in shape. The method is simple and convenient to operate, by pre-embedding the steel frame in the sand mould, not only is the strength of the large-sized sand mould improved, but also addition of the resin of the sand mould is reduced, and the production cost is reduced.
Description
Technical field
The present invention relates to RP technique field, more specifically, it relates to a kind of increase large-scale Quick-forming sand mold
The method of intensity.
Background technology
RP technique is widely used in every field as an emerging advanced technology, such as Space Science and Technology, doctor
Treat industry, electron trade, automobile industry etc..Wherein, digitlization containerless casting forming technique in RP technique used as comparing
A kind of ripe processing mode, it is to export procedure file according to three-D profile shape by programming software, then by journey
Preface part is uploaded on digitlization model-free casting forming machine, finally by special tool according to procedure track by casting
A kind of forming technique that sand mold is processed.The forming technique during large-scale sand mold is processed, with efficiency high, low cost
The advantages of.It is to pour into sand frame after being mixed according to a certain percentage with foundry sands and resin that traditional handicraft manufactures large-scale sand mold, waits to set
Sand frame is removed after fat solidification, the sand mold blank for processing is obtained.And after sand mold is machined, in handling process, due to sand
Type weight is big (about 2-3 tons), and the anchor point of lifting is lacked again, accordingly, it would be desirable to special suspender is lifted by crane and overturn, and sand mold
Length it is (about 3-4 meters) long, poor rigidity is easily broken off and causes sand mold to scrap.
For traditional manufacturing process, although the making requirement of common sand can be met, but during the large-scale sand mold of making still
Have the shortcomings that apparent, be mainly manifested in：
1st, during hoisting large-size sand mold, it is necessary to lifted with special suspender, so for various sizes of large-scale sand mold
Need to make special hanger, so as to increase the manufacturing cost of sand mold；
When the 2nd, making large-scale sand mold, for the intensity for increasing sand mold must be added to more resins, however, working as resin amount
Excessively make, sand mold gas forming amount in cast can be caused big and the problem of casting quality is influenceed, meanwhile, resin amount excessively also can
Increase the manufacturing cost of sand mold.
The content of the invention
The technical problem to be solved in the present invention is directed to the above-mentioned deficiency of prior art, there is provided a kind of easy to operate, practical
Property it is strong, effectively reduce cost of manufacture and the method that large-scale Quick-forming sand mold intensity can be increased.
The technical scheme is that such：A kind of method for increasing large-scale Quick-forming sand mold intensity, the method bag
Include sand mold blank make, digitlization containerless casting shaping, described sand mold blank make be by foundry sands and resin in proportion
Mixing, injection sand inframe forms sand mold blank, and described sand mold blank makes the step of being additionally included in sand inframe pre-buried steelframe, institute
The steelframe stated is mutually suitable with the shape of sand mold blank.
Used as further improving, described method specifically includes following step：
S1, the shape according to required sand mold, use square steel or channel-section steel to make the steelframe being adapted with sand mold shape size；
S2, steelframe is put into sand inframe, and is required according to the size of drawing, steelframe is fixed on the specified location of sand frame；
S3, foundry sands and resin are mixed in proportion, be then injected into height of the sand inframe to required for sand mold, wait sand
Type solidifies, to form sand mold blank；
S4, steelframe is caught on by crane, sand mold blank is hung on digitlization model-free casting forming machine, digitized without molding
Make forming machine carries out milling according to good procedure prepared in advance to sand mold blank, to form complete sand mold.
Further, described steelframe is the latticed support being adapted with sand mold size.
Further, described steelframe side is provided with multiple hangers.
Further, described hanger extends to the outer surface of sand mold blank.
Further, in the step S4, described steelframe is in the bottom of milling cutter all the time.
Beneficial effect
The present invention compared with prior art, with advantages below：
1st, the present invention is that steelframe is imbedded in sand mold, and steelframe plays a part of skeleton in sand mold, enhances large-scale strip
The rigidity of shape sand mold, improves the counter-bending deformation of sand mold, reduces the risk of sand mold fracture, effectively extends the use longevity of sand mold
Life；
2nd, the present invention has imbedded steelframe in sand mold, while large-scale sand mold intensity is met, reduces the consumption of resin,
Avoid because resin excessively caused by sand mold cast when the big problem of gas forming amount, meanwhile, be effectively saved production cost；
3rd, steelframe of the invention is provided with special hanger, be conducive to sand mold blank follow-up processing and fabricating carrying,
Upset etc. operation, efficiently solve the problems, such as sand mold need make special hanger cause increase sand mold manufacturing cost, improve sand
Efficiency and quality that type makes, and so that the security and convenience that sand mold makes are ensured；
4th, the method for the present invention, by the pre-buried steelframe of sand mold blank, in order to handling and raising sand mold blank intensity, making
Obtaining sand mold can be processed on digitlization model-free casting forming machine, substantially increase the precision of sand mold, correspondingly improve casting
The quality of part.
Brief description of the drawings
Fig. 1 is operational flowchart of the invention；
Fig. 2 is steel frame construction schematic diagram of the invention；
Fig. 3 is sand mold blahk structure schematic diagram of the invention；
Fig. 4 is sand mould structure schematic diagram of the invention.
Wherein：1- sand molds blank, 2- steelframes, 3- sand molds, 4- hangers.
Specific embodiment
The present invention is described further for specific embodiment in below in conjunction with the accompanying drawings.
Refering to Fig. 1-4, a kind of method for increasing large-scale Quick-forming sand mold intensity of the invention, the method includes sand mold hair
Base makes, digitlization containerless casting shaping, wherein, it is to mix foundry sands and resin in proportion that sand mold blank makes, with shape
Proportional uniform mixture, then injects pre-prepd sand inframe to form sand mold blank 1 by the mixture, its sand mold hair
The step of base makes the step of being additionally included in sand inframe pre-buried steelframe 2, the pre-buried steelframe 2 is used by foundry sands and resin shape
Into mixture injection sand frame before, also, its steelframe 2 and sand mold blank 1 shape mutually suitably, the method specifically includes following
Step：
S1, the shape according to required sand mold, use square steel or channel-section steel to make the steelframe 2 being adapted with sand mold shape size；
S2, steelframe 2 is put into sand inframe, and is required according to the size of drawing, steelframe 2 is fixed on the specific bit of sand frame
Put；
S3, foundry sands and resin are mixed in proportion, be then injected into height of the sand inframe to required for sand mold, wait sand
Type solidifies, to form sand mold blank 1；
S4, steelframe 2 is caught on by crane, sand mold blank 1 is hung on digitlization model-free casting forming machine, digitized without mould
Cast form machine carries out milling according to good procedure prepared in advance to sand mold blank 1, to form complete sand mold 3.
By the pre-buried steelframe 2 in sand mold 3, efficiently solve sand mold 3 needs to make special hanger carrying or turns over the present invention
Then cause to increase the problem of the manufacturing cost of sand mold 3, improve the efficiency and quality of the making of sand mold 3 so that the peace that sand mold 3 makes
Full property and convenience are ensured；Meanwhile, steelframe 2 plays a part of skeleton in sand mold 3, enhances large-scale strip sand mold 3
Rigidity, improve the counter-bending deformation of sand mold 3, reduce the risk of the fracture of sand mold 3, effectively extend the service life of sand mold 3,
While large-scale 3 intensity of sand mold is met, reduce the consumption of resin, it is to avoid because resin excessively caused by sand mold 3 cast when send out
Broad-minded problem, is effectively saved production cost；And so that sand mold 3 can be carried out on digitlization model-free casting forming machine
Processing, substantially increases the precision of sand mold 3, correspondingly improves the quality of casting.
In the above-described embodiment, steelframe 2 is the latticed support being adapted with the size of sand mold 3, and its steelframe 2 is embedded to be covered with
In the uniform force of whole sand mold 3 in sand mold 3, is made, multiple hangers 4 are additionally provided with the side of steelframe 2, for lifting by crane large-scale sand mold 3,
It is easy to carrying, upset to sand mold 3 etc., also, the hanger 4 extends to the outer surface of sand mold blank 1, in order to suspension hook and hanger
4 directly contacts, improve the producing efficiency of sand mold 3.
In the step of the present embodiment S4, when being digitized containerless casting to sand mold blank 1 and forming, steelframe 2 begins
The bottom of milling cutter is in eventually, and because the position of steelframe 2 is when sand mold blank 1 is made, its steelframe 2 is just already fixed to what is specified
Position, therefore, in process, the cutter of milling is will not to encounter steelframe 2, so as to avoid the problem of tool damage.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for a person skilled in the art,
On the premise of structure of the present invention is not departed from, some deformations and improvement can also be made, these are implemented all without the influence present invention
Effect and practical applicability.
Claims (6)
1. a kind of method for increasing large-scale Quick-forming sand mold intensity, the method includes that sand mold blank makes, digitizes without molding
Type is caused, it is to mix foundry sands and resin in proportion that described sand mold blank makes, injection sand inframe forms sand mold blank
(1), it is characterised in that described sand mold blank makes the step of being additionally included in sand inframe pre-buried steelframe (2), described steelframe
(2) shape with sand mold blank (1) is mutually suitable.
2. a kind of method for increasing large-scale Quick-forming sand mold intensity according to claim 1, it is characterised in that specific bag
Include following step：
S1, the shape according to required sand mold, use square steel or channel-section steel to make the steelframe (2) being adapted with sand mold shape size；
S2, steelframe (2) is put into sand inframe, and is required according to the size of drawing, steelframe (2) is fixed on the specific bit of sand frame
Put；
S3, foundry sands and resin are mixed in proportion, be then injected into height of the sand inframe to required for sand mold, wait sand mold to consolidate
Change, to form sand mold blank (1)；
S4, steelframe (2) is caught on by crane, sand mold blank (1) is hung on digitlization model-free casting forming machine, digitized without mould
Cast form machine carries out milling according to good procedure prepared in advance to sand mold blank (1), to form complete sand mold (3).
3. a kind of method for increasing large-scale Quick-forming sand mold intensity according to claim 1 and 2, it is characterised in that institute
The steelframe (2) stated is the latticed support being adapted with sand mold (3) size.
4. a kind of method for increasing large-scale Quick-forming sand mold intensity according to claim 1 and 2, it is characterised in that institute
Steelframe (2) side stated is provided with multiple hangers (4).
5. a kind of method for increasing large-scale Quick-forming sand mold intensity according to claim 4, it is characterised in that described
Hanger (4) extends to the outer surface of sand mold blank (1).
6. a kind of method for increasing large-scale Quick-forming sand mold intensity according to claim 2, it is characterised in that described
In step S4, described steelframe (2) is in the bottom of milling cutter all the time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611079360.0A CN106694803A (en) | 2016-11-30 | 2016-11-30 | Method for increasing strength of large-sized rapid formation sand mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611079360.0A CN106694803A (en) | 2016-11-30 | 2016-11-30 | Method for increasing strength of large-sized rapid formation sand mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106694803A true CN106694803A (en) | 2017-05-24 |
Family
ID=58935302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611079360.0A Pending CN106694803A (en) | 2016-11-30 | 2016-11-30 | Method for increasing strength of large-sized rapid formation sand mould |
Country Status (1)
| Country | Link |
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| CN (1) | CN106694803A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941466A (en) * | 2018-08-01 | 2018-12-07 | 广西玉柴机器股份有限公司 | The casting technique of V-structure ship cylinder body |
| CN110102711A (en) * | 2019-04-11 | 2019-08-09 | 兰州兰石集团有限公司铸锻分公司 | The manufacturing method of steel-casting moulding process casting mold |
| CN110695313A (en) * | 2019-11-06 | 2020-01-17 | 沈阳铸造研究所有限公司 | A kind of stamping compact sand mold 3D printing equipment and method |
| CN113210575A (en) * | 2021-04-15 | 2021-08-06 | 杨合军 | Manufacturing process for arranging keel frame in sand mold |
| CN114012038A (en) * | 2021-12-24 | 2022-02-08 | 宜宾普什联动科技有限公司 | Frameless sand pouring basin and manufacturing method thereof |
| CN116727645A (en) * | 2023-05-06 | 2023-09-12 | 杭州合立机械有限公司 | Automatic carrying structure of engine cylinder body and die with automatic carrying structure |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941466A (en) * | 2018-08-01 | 2018-12-07 | 广西玉柴机器股份有限公司 | The casting technique of V-structure ship cylinder body |
| CN110102711A (en) * | 2019-04-11 | 2019-08-09 | 兰州兰石集团有限公司铸锻分公司 | The manufacturing method of steel-casting moulding process casting mold |
| CN110102711B (en) * | 2019-04-11 | 2020-12-25 | 兰州兰石集团有限公司铸锻分公司 | Method for manufacturing casting mould of steel casting forming process |
| CN110695313A (en) * | 2019-11-06 | 2020-01-17 | 沈阳铸造研究所有限公司 | A kind of stamping compact sand mold 3D printing equipment and method |
| CN113210575A (en) * | 2021-04-15 | 2021-08-06 | 杨合军 | Manufacturing process for arranging keel frame in sand mold |
| CN114012038A (en) * | 2021-12-24 | 2022-02-08 | 宜宾普什联动科技有限公司 | Frameless sand pouring basin and manufacturing method thereof |
| CN116727645A (en) * | 2023-05-06 | 2023-09-12 | 杭州合立机械有限公司 | Automatic carrying structure of engine cylinder body and die with automatic carrying structure |
| CN116727645B (en) * | 2023-05-06 | 2023-12-29 | 杭州合立机械有限公司 | Automatic carrying structure of engine cylinder body and die with automatic carrying structure |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |