CN106180563A - The casting method of polishing exempted from by a kind of smallclothes evaporative pattern foundry goods - Google Patents
The casting method of polishing exempted from by a kind of smallclothes evaporative pattern foundry goods Download PDFInfo
- Publication number
- CN106180563A CN106180563A CN201610715603.9A CN201610715603A CN106180563A CN 106180563 A CN106180563 A CN 106180563A CN 201610715603 A CN201610715603 A CN 201610715603A CN 106180563 A CN106180563 A CN 106180563A
- Authority
- CN
- China
- Prior art keywords
- cushion block
- precoated sand
- sand cushion
- batten
- smallclothes
- 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
-
- 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
- B22C9/04—Use of lost patterns
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
The casting method of polishing exempted from by smallclothes evaporative pattern foundry goods of the present invention, relate to a kind of casting method, comprise the following steps that: (one) makes precoated sand cushion block, after white molding is dried, Bai Mo needs the position being connected with support means stick the precoated sand cushion block made in advance；(2) being connected to support the batten of the white mould in location by attachment means outside two pieces of neighbouring precoated sand cushion blocks, the surface area of precoated sand cushion block is more than the area of connected batten junction；(3) at the external coating fireproof coating of white mould, and the fireproof coating on Bai Mo surface is dried；(4) fireproof coating will be painted with and connection has the white mould of precoated sand cushion block and batten to be embedded in drystone sand, moulding afterwards；(5) quartz sand is cleared up after moulding completes.Using the smallclothes evaporative pattern foundry goods of the inventive method casting without polishing, production efficiency is high.
Description
Technical field
The present invention relates to a kind of casting method, particularly to the casting method of a kind of smallclothes evaporative pattern foundry goods.
Background technology
Lost foam casting is that foam mould uses bindless dry sand to combine the cavityless casting of vacuum pumping technology, be by with
The essentially identical bubbles model bonding of casting dimension shape is combined into model cluster, after brushing fireproof coating drying, is embedded in drystone
Vibration molding in sand, pours into a mould under negative pressure, makes model gasify, and liquid metals occupies modal position, forms casting after solidification cooling
The novel casting method of part.
Smallclothes evaporative pattern foundry goods is owing to volume is little, wall thickness is thin, and foam mould (being called for short " Bai Mo ") is owing to disappearing with smallclothes
The structure of die casting is essentially identical, and therefore white mould exists the features such as volume is little, wall thickness is thin, needs to bury white mould in casting process
Vibration molding in drystone sand, and pour into a mould under negative pressure, the white mould that volume is little, wall thickness is thin is easy to deform or rupture,
It is thus desirable to add support means at Bai Mo edge, but in casting process, support means position can be occupied by liquid metals, casting
Needing the metal by support means position to polish off after having made, waste time and energy, production efficiency is low.
Summary of the invention
It is an object of the invention to the defect existed for above-mentioned prior art, it is provided that polishing exempted from by a kind of smallclothes evaporative pattern foundry goods
Casting method, use the smallclothes evaporative pattern foundry goods of the inventive method casting without polishing, production efficiency is high.
The present invention the technical scheme is that the casting side of polishing exempted from by a kind of smallclothes evaporative pattern foundry goods for achieving the above object
Method, comprises the following steps that: (one) makes precoated sand cushion block, after white molding is dried, needs and support dress on Bai Mo
The precoated sand cushion block made in advance is sticked in the position putting connection；(2) filled by connection outside two pieces of neighbouring precoated sand cushion blocks
Putting and be connected to support the batten positioning white mould, the surface area of precoated sand cushion block is more than the area of connected batten junction；
(3) at the external coating fireproof coating of white mould, and the fireproof coating on Bai Mo surface is dried；(4) fireproof coating will be painted with
And connection has the white mould of precoated sand cushion block and batten to be embedded in drystone sand, moulding afterwards；(5) cleaning quartz after moulding completes
Sand, precoated sand cushion block is the most defeated and dispersed and be not bound on foundry goods after being heated.
The further technical scheme of the present invention is: the length of each piece of precoated sand cushion block is generous is 20mm, 8mm, 6mm respectively.
The further technical scheme of the present invention is: for connecting the attachment means of precoated sand cushion block and batten in step (two)
For PUR.
Smallclothes evaporative pattern foundry goods of the present invention is exempted from the casting method of polishing and is had the advantages that at Bai Mo and support batten
Precoated sand cushion block on the pad of junction, and the surface area of precoated sand cushion block is more than the area of connected batten junction, in casting
During due to precoated sand cushion block intercept, liquid metals will not flow at support means position, thus without formed burr,
Having cast the most defeated and dispersed after rear precoated sand cushion block is heated and be not bound on foundry goods, impulse-free robustness need not polishing, production efficiency
Height, uses batten to do support means simultaneously, and batten volume after high temperature will not occur to change in a big way, at casting vibration molding
During will not pull white moding shape, casting quality is effectively ensured.
With embodiment, smallclothes evaporative pattern foundry goods of the present invention is exempted from the casting method work of polishing further below in conjunction with the accompanying drawings
Explanation.
Accompanying drawing explanation
Fig. 1 be the casting method using smallclothes evaporative pattern foundry goods of the present invention to exempt from polishing a white mould and precoated sand cushion block and
The structural representation that batten connects；
Drawing reference numeral illustrates: the white mould of 1-, 2-sidewall, 3-batten, 4-precoated sand cushion block.
Detailed description of the invention
The casting method of polishing exempted from by the present invention a kind of smallclothes evaporative pattern foundry goods, comprises the following steps that: (one) makes and covers
Film sand cushion block, the length of each piece of precoated sand cushion block is generous is 20mm, 8mm, 6mm respectively, after white molding is dried, at Bai Moshang
The position being connected with support means is needed to stick the precoated sand cushion block made in advance；(2) at two pieces of neighbouring precoated sand cushion blocks
Outer being connected to support the batten positioning white mould by attachment means, the attachment means being used for connecting precoated sand cushion block and batten is
PUR (not shown), as it is shown in figure 1, white mould uniformly connects on the surface of the less two pieces of sidewalls of thickness precoated sand pad
Block, batten frame on two side relative to two pieces of precoated sand cushion blocks on, the surface area of precoated sand cushion block be more than connected batten
The area of junction, intercepts due to precoated sand cushion block in casting process, and liquid metals will not flow to support means position
Place；(3) at the external coating fireproof coating of white mould, and being dried by the fireproof coating on Bai Mo surface, fireproof coating can be according to casting
Temperature requirements when making and choose satisfactory, can directly buy, it is possible to buy raw material proportioning voluntarily and make；(4) will be coated with
It is brushed with fireproof coating and connection has the white mould of precoated sand cushion block and batten to be embedded in drystone sand, moulding afterwards；(5) moulding is complete
Clearing up quartz sand after one-tenth, precoated sand cushion block is the most defeated and dispersed and be not bound on foundry goods after being heated.
Intercepting due to precoated sand cushion block in casting process, liquid metals will not flow at support means position, because of
This will not form burr, has cast the most defeated and dispersed after rear precoated sand cushion block is heated and has been not bound on foundry goods, and impulse-free robustness is not required to
Polishing, production efficiency is high；Using batten to do support means, batten volume after high temperature will not occur to become in a big way simultaneously
Change, white moding shape will not be pulled in casting Vibration Moulding Process, casting quality is effectively ensured.
Above example is only presently preferred embodiments of the present invention, and the structure of the present invention is not limited to what above-described embodiment was enumerated
Form, such as the size of precoated sand cushion block, and the size and shape of support batten, precoated sand cushion block and the quantity of batten, can root
According to cast difform foundry goods and different, all made within the spirit and principles in the present invention any amendment, equivalent
Deng, should be included within the scope of the present invention.
Claims (3)
1. the casting method of polishing exempted from by a smallclothes evaporative pattern foundry goods, it is characterised in that comprise the following steps that: (one) makes
Precoated sand cushion block, after white molding is dried, needs the position being connected with support means to stick on Bai Mo and makes in advance
Precoated sand cushion block；(2) outside two pieces of neighbouring precoated sand cushion blocks, it is connected to support the wood of the white mould in location by attachment means
Bar, the surface area of precoated sand cushion block is more than the area of connected batten junction；(3) in the fire-resistant painting of external coating of white mould
Material, and the fireproof coating on Bai Mo surface is dried；(4) fireproof coating will be painted with and connection has precoated sand cushion block and batten
Bai Mo is embedded in drystone sand, moulding afterwards；(5) quartz sand is cleared up after moulding completes.
2. the casting method of polishing exempted from by smallclothes evaporative pattern foundry goods as claimed in claim 1, it is characterised in that each piece of precoated sand
The length of cushion block is generous is 20mm, 8mm, 6mm respectively.
3. the casting method of polishing exempted from by smallclothes evaporative pattern foundry goods as claimed in claim 1, it is characterised in that use in step (two)
Attachment means in connection precoated sand cushion block with batten is PUR.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016104349650 | 2016-06-17 | ||
| CN201610434965 | 2016-06-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106180563A true CN106180563A (en) | 2016-12-07 |
Family
ID=57523596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610715603.9A Pending CN106180563A (en) | 2016-06-17 | 2016-08-24 | The casting method of polishing exempted from by a kind of smallclothes evaporative pattern foundry goods |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106180563A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109226687A (en) * | 2018-10-20 | 2019-01-18 | 共享装备股份有限公司 | Annular cast is with type running gate system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011110572A (en) * | 2009-11-26 | 2011-06-09 | Honda Motor Co Ltd | Lost foam pattern casting method |
| CN102228955A (en) * | 2011-07-01 | 2011-11-02 | 李复旺 | Treatment method for deformation of massive lost foam |
| CN102335718A (en) * | 2011-09-21 | 2012-02-01 | 浙江万里扬变速器股份有限公司 | Processing method for foam model in lost foam forging |
| CN202151677U (en) * | 2011-07-11 | 2012-02-29 | 铜陵万象汽车零部件有限公司 | Lost foam casting die |
| CN103506576A (en) * | 2013-09-18 | 2014-01-15 | 宁夏共享集团有限责任公司 | Production method for preventing evaporative pattern casting deformation |
| CN105344940A (en) * | 2015-12-07 | 2016-02-24 | 兴化市雅兰机械制造有限公司 | Motor casing expendable pattern casting process |
-
2016
- 2016-08-24 CN CN201610715603.9A patent/CN106180563A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011110572A (en) * | 2009-11-26 | 2011-06-09 | Honda Motor Co Ltd | Lost foam pattern casting method |
| CN102228955A (en) * | 2011-07-01 | 2011-11-02 | 李复旺 | Treatment method for deformation of massive lost foam |
| CN202151677U (en) * | 2011-07-11 | 2012-02-29 | 铜陵万象汽车零部件有限公司 | Lost foam casting die |
| CN102335718A (en) * | 2011-09-21 | 2012-02-01 | 浙江万里扬变速器股份有限公司 | Processing method for foam model in lost foam forging |
| CN103506576A (en) * | 2013-09-18 | 2014-01-15 | 宁夏共享集团有限责任公司 | Production method for preventing evaporative pattern casting deformation |
| CN105344940A (en) * | 2015-12-07 | 2016-02-24 | 兴化市雅兰机械制造有限公司 | Motor casing expendable pattern casting process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109226687A (en) * | 2018-10-20 | 2019-01-18 | 共享装备股份有限公司 | Annular cast is with type running gate system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161207 |
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| WD01 | Invention patent application deemed withdrawn after publication |