CN104550651A - Casting resin sand - Google Patents
Casting resin sand Download PDFInfo
- Publication number
- CN104550651A CN104550651A CN201310505784.9A CN201310505784A CN104550651A CN 104550651 A CN104550651 A CN 104550651A CN 201310505784 A CN201310505784 A CN 201310505784A CN 104550651 A CN104550651 A CN 104550651A
- Authority
- CN
- China
- Prior art keywords
- sand
- resin sand
- casting resin
- component
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
- B22C1/20—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
- B22C1/22—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins
- B22C1/2233—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- B22C1/224—Furan polymers
Abstract
The invention discloses casting resin sand. The casting resin sand is characterized by comprising modelling (core) sand, a polyvinyl alcohol water solution or a polyvinyl alcohol and aldehyde condensation compound, furfuryl alcohol or furan resin, and an ion-containing acidic mixture. The casting resin sand has the characteristics of being low in cost, good in collapsibility, easy to regenerate, less in toxicity, simple to use and the like. A preparation technology is simple and the casting resin sand can replace cold-setting furan resin sand.
Description
Technical field
The invention belongs to casting technology field, casting moulding (core) material, is specifically related to a kind of resin casting.
Background technology
Existing casting chilled furan resin sand, for the casting mold (or core) of ferrous and nonferrous metals foundry goods, but its cost is high, and collapsibility is also undesirable, regenerates more difficult, and reclaim equiment is complicated, have pollution, therefore its application is subject to a definite limitation to environment.
Summary of the invention
In order to overcome the above-mentioned technical problem that prior art field exists, the object of the invention is to, provide that a kind of cost is low, collapsibility number, comprehensive good, regeneration easily, the moulding (or core) of of low pollution uses resin sand.
Technical scheme of the present invention is: (refer generally to roughing sand except comprising moulding (or core) with sand in resin sand component, also old sand or reclaimed sand can be made) outward, also there is component 1, namely containing 5-25%(weight ratio) aqueous solution of polyvinyl alcohol or polyvinyl alcohol and aldehydes be (as acetaldehyde, propionic aldehyde etc., preferably formaldehyde) polymer, hydroformylation degree is 15-85% mole; Component 2, i.e. furfuryl alcohol or furane resins (as furfuryl alcohol modified resin or furfural alcohol modified phenolic resin etc.); The acidic mixture of component 3, i.e. boracic ion, as alcohol (as the methanol/ethanol etc.) solution etc. of p-methyl benzenesulfonic acid and the alcoholic solution (as methyl alcohol, ethanol etc.) of boric acid or the mixture of phosphoric acid and boric acid or sulfuric acid and boric acid.
The addition of component 1 and component 2 is the 0.5-2.5% of moulding (or core) sand, and the addition of component 3 is the 20-100% of component 1 and component 2 sum.
The addition of component 1 and component 2 is the 0.5-2.5% of moulding (or core) sand, and the addition of component 3 is the 20-100% of component 1 and component 2 sum.
The compound method of this resin clicks sequential feeds: first to moulding (or core) with adding component 3 in sand, adding component 1 and component 2 again, and to mix.
Resin casting provided by the invention, its beneficial effect is:
1, have that cost is low, collapsibility good, regeneration is easy, few poison, use the features such as simple;
2, the present invention can reach the casting dimension accuracy and surface smoothness that chilled furan resin sand reaches, and cohesive force is strong, good combination property;
3, can the moulding of extensive use and ferrous and nonferrous metals foundry goods or coremaking.
Detailed description of the invention
Below in conjunction with an embodiment, resin casting provided by the invention is described in detail.
Embodiment
The resin casting of the present embodiment, fill a prescription as follows:
Formula: get roughing sand 100 ㎏, add ethanolic solution 1 ㎏ containing 49% sulfuric acid and 1% boric acid, then to add hydroformylation degree be the polyvinyl alcohol of 75% mole and condensation product 1 ㎏ of formaldehyde, finally adding furane resins 1 ㎏ (furfural alcohol modified phenolic resin) Homogeneous phase mixing can use.
Claims (1)
1. a resin casting, comprise moulding (or core) sand, it is characterized in that each component and proportioning thereof are: roughing sand 100 parts, containing the ethanolic solution 1 part of 49% sulfuric acid and 1% boric acid, hydroformylation degree is the polyvinyl alcohol of 75% mole and the condensation product 1 part of formaldehyde, furane resins 1 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310505784.9A CN104550651A (en) | 2013-10-24 | 2013-10-24 | Casting resin sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310505784.9A CN104550651A (en) | 2013-10-24 | 2013-10-24 | Casting resin sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104550651A true CN104550651A (en) | 2015-04-29 |
Family
ID=53068315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310505784.9A Pending CN104550651A (en) | 2013-10-24 | 2013-10-24 | Casting resin sand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104550651A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106040965A (en) * | 2016-08-15 | 2016-10-26 | 合肥江淮铸造有限责任公司 | Molding sand for casting |
-
2013
- 2013-10-24 CN CN201310505784.9A patent/CN104550651A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106040965A (en) * | 2016-08-15 | 2016-10-26 | 合肥江淮铸造有限责任公司 | Molding sand for casting |
| CN106040965B (en) * | 2016-08-15 | 2017-12-29 | 合肥江淮铸造有限责任公司 | A kind of moulding sand for casting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |