CN107127291A - A kind of water-glass sand core formula of moltening mold castings - Google Patents
A kind of water-glass sand core formula of moltening mold castings Download PDFInfo
- Publication number
- CN107127291A CN107127291A CN201710213888.0A CN201710213888A CN107127291A CN 107127291 A CN107127291 A CN 107127291A CN 201710213888 A CN201710213888 A CN 201710213888A CN 107127291 A CN107127291 A CN 107127291A
- Authority
- CN
- China
- Prior art keywords
- parts
- water
- waterglass
- glass
- mold castings
- 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
- 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
- B22C1/18—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 inorganic agents
- B22C1/186—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 inorganic agents contaming ammonium or metal silicates, silica sols
- B22C1/188—Alkali metal silicates
-
- 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
- B22C1/02—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a kind of water-glass sand core of moltening mold castings formula, it is made up of according to weight fraction the following raw material：100 120 parts of silica sand, 7 10 parts of waterglass, 13 parts of bentonite, 0.5 1.5 parts of sodium hydroxide, 0.5 1 parts of dispersant, 45 parts of water use the low modulus water glass of sand casting（M2.0‑2.5）, and use the high mode of smart casting instead（M3.0‑3.4）Waterglass is to increase the water-resistance of core, in addition, using thinner molding sand, increase waterglass consumption is to improve the intensity of core, and the painting measure such as one layer of waterglass investment precoat or water-jetting glass solves the problems, such as intensity and surface roughness outside core.
Description
Technical field
The present invention relates to investment casting cores technical field, the water-glass sand core of specially a kind of moltening mold castings is matched somebody with somebody
Side.
Background technology
In the relatively low intricate casting of production dimension precision requirement, ceramic core still can be used in inner chamber, though this technique energy
Ensure the size of casting very well, but ceramic core price is high, in addition it is also necessary to and special core removes equipment and process, accordingly, it would be desirable to
Some inexpensive cores are developed, to meet production requirement.
The content of the invention
In order to overcome the shortcomings of prior art, the present invention provides a kind of water-glass sand core of moltening mold castings and matched somebody with somebody
Side, without using the low modulus water glass of sand casting（M2.0-2.5）, and use the high mode of smart casting instead（M3.0-3.4）Waterglass
To increase the water-resistance of core, in addition, using thinner molding sand, increase waterglass consumption to improve the intensity of core, and in type
The measure such as one layer of waterglass investment precoat or water-jetting glass is applied outside core and solves the problems, such as intensity and surface roughness.
The technical solution adopted for the present invention to solve the technical problems is：A kind of water-glass sand core of moltening mold castings is matched somebody with somebody
Side, is made up of according to weight fraction the following raw material：
100-120 parts of silica sand, 7-10 parts of waterglass, 1-3 parts of bentonite, 0.5-1.5 parts of sodium hydroxide, 0.5-1 parts of dispersant, water
4-5 parts.
As a kind of preferred technical scheme of the present invention, it is made up of according to weight fraction the following raw material：
100 parts of silica sand, 7 parts of waterglass, 1 part of bentonite, 0.5 part of sodium hydroxide, 0.5 part of dispersant, 4 parts of water.
As a kind of preferred technical scheme of the present invention, it is made up of according to weight fraction the following raw material：
110 parts of silica sand, 8 parts of waterglass, 2 parts of bentonite, 1 part of sodium hydroxide, 0.7 part of dispersant, 4.5 parts of water.
As a kind of preferred technical scheme of the present invention, it is made up of according to weight fraction the following raw material：
120 parts of silica sand, 10 parts of waterglass, 3 parts of bentonite, 1.5 parts of sodium hydroxide, 1 part of dispersant, 5 parts of water.
As a kind of preferred technical scheme of the present invention, the screen size of the silica sand is 45-70.
As a kind of preferred technical scheme of the present invention, the concentration of the sodium hydroxide is 10-20%.
As a kind of preferred technical scheme of the present invention, the waterglass uses soluble glass of high modulus, and its modulus is M3.0
To M4.0.
As a kind of preferred technical scheme of the present invention, the dispersant uses calcium oxide, magnesia, mica or feldspar.
Compared with prior art, the beneficial effects of the invention are as follows：Low modulus water glass of the invention without using sand casting
（M2.0-2.5）, and use the high mode of smart casting instead（M3.0-3.4）Waterglass to increase the water-resistance of core, in addition, using compared with
Thin molding sand, increases waterglass consumption to improve the intensity of core, and one layer of waterglass investment precoat of painting or spray outside core
The measures such as waterglass solve the problems, such as intensity and surface roughness.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of protection of the invention.
Embodiment 1：
The invention provides a kind of technical scheme：A kind of moltening mold castings water-glass sand core formula, according to weight fraction by
The following raw material is constituted：
100 parts of silica sand, 7 parts of waterglass, 1 part of bentonite, 0.5 part of sodium hydroxide, 0.5 part of dispersant, 4 parts of water.
Embodiment 2：
The invention provides a kind of technical scheme：A kind of moltening mold castings water-glass sand core formula, according to weight fraction by
The following raw material is constituted：
110 parts of silica sand, 8 parts of waterglass, 2 parts of bentonite, 1 part of sodium hydroxide, 0.7 part of dispersant, 4.5 parts of water.
Embodiment 3：
The invention provides a kind of technical scheme：A kind of moltening mold castings water-glass sand core formula, according to weight fraction by
The following raw material is constituted：
120 parts of silica sand, 10 parts of waterglass, 3 parts of bentonite, 1.5 parts of sodium hydroxide, 1 part of dispersant, 5 parts of water.
Above-described embodiment 1 is to embodiment 3, and the screen size of the silica sand is 45-70, and the concentration of the sodium hydroxide is 10-
20%, the waterglass uses soluble glass of high modulus, its modulus be M3.0 to M4.0, the dispersant using calcium oxide, oxidation
Magnesium, mica or feldspar.
Low modulus water glass of the invention without using sand casting（M2.0-2.5）, and use the high mode of smart casting instead（M3.0-
3.4）Waterglass is to increase the water-resistance of core, in addition, using thinner molding sand, increasing waterglass consumption to improve the strong of core
Degree, and the painting measure such as one layer of waterglass investment precoat or water-jetting glass solves the problems, such as intensity and surface roughness outside core.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any mark in claim should not be considered as to the claim involved by limitation.
Claims (8)
1. a kind of water-glass sand core formula of moltening mold castings, it is characterised in that：It is made up of according to weight fraction the following raw material：
100-120 parts of silica sand, 7-10 parts of waterglass, 1-3 parts of bentonite, 0.5-1.5 parts of sodium hydroxide, 0.5-1 parts of dispersant, water
4-5 parts.
2. a kind of water-glass sand core formula of moltening mold castings according to claim 1, it is characterised in that：According to weight
Fraction is made up of the following raw material：
100 parts of silica sand, 7 parts of waterglass, 1 part of bentonite, 0.5 part of sodium hydroxide, 0.5 part of dispersant, 4 parts of water.
3. a kind of water-glass sand core formula of moltening mold castings according to claim 1, it is characterised in that：According to weight
Fraction is made up of the following raw material：
110 parts of silica sand, 8 parts of waterglass, 2 parts of bentonite, 1 part of sodium hydroxide, 0.7 part of dispersant, 4.5 parts of water.
4. a kind of water-glass sand core formula of moltening mold castings according to claim 1, it is characterised in that：According to weight
Fraction is made up of the following raw material：
120 parts of silica sand, 10 parts of waterglass, 3 parts of bentonite, 1.5 parts of sodium hydroxide, 1 part of dispersant, 5 parts of water.
5. a kind of water-glass sand core formula of moltening mold castings according to claim 1, it is characterised in that：The silica sand
Screen size be 45-70.
6. a kind of water-glass sand core formula of moltening mold castings according to claim 1, it is characterised in that：The hydrogen-oxygen
The concentration for changing sodium is 10-20%.
7. a kind of water-glass sand core formula of moltening mold castings according to claim 1, it is characterised in that：The water glass
Glass uses soluble glass of high modulus, and its modulus is M3.0 to M4.0.
8. a kind of water-glass sand core formula of moltening mold castings according to claim 1, it is characterised in that：It is described defeated and dispersed
Agent uses calcium oxide, magnesia, mica or feldspar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710213888.0A CN107127291A (en) | 2017-04-01 | 2017-04-01 | A kind of water-glass sand core formula of moltening mold castings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710213888.0A CN107127291A (en) | 2017-04-01 | 2017-04-01 | A kind of water-glass sand core formula of moltening mold castings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107127291A true CN107127291A (en) | 2017-09-05 |
Family
ID=59716505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710213888.0A Pending CN107127291A (en) | 2017-04-01 | 2017-04-01 | A kind of water-glass sand core formula of moltening mold castings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107127291A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117696829A (en) * | 2023-12-26 | 2024-03-15 | 曲阜冶通铸材科技发展有限公司 | Casting additive for sand casting and use method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001232442A (en) * | 2000-02-24 | 2001-08-28 | Gun Ei Chem Ind Co Ltd | Composition for sweeping molding, and forming method for sweeping mold |
| CN102366812A (en) * | 2011-10-11 | 2012-03-07 | 许立新 | Preparation method for sodium silicate sand used for casting |
| CN103752762A (en) * | 2012-05-07 | 2014-04-30 | 周家欣 | Modified sodium silicate sand and making method thereof |
| CN104353789A (en) * | 2014-10-23 | 2015-02-18 | 江苏新中洲特种合金材料有限公司 | Preparation method of sand casting sand core and prepared sand core |
| CN104550639A (en) * | 2013-10-18 | 2015-04-29 | 青岛五洋铸机有限公司 | Molding sand sodium silicate binding and collapsing agent for casting |
-
2017
- 2017-04-01 CN CN201710213888.0A patent/CN107127291A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001232442A (en) * | 2000-02-24 | 2001-08-28 | Gun Ei Chem Ind Co Ltd | Composition for sweeping molding, and forming method for sweeping mold |
| CN102366812A (en) * | 2011-10-11 | 2012-03-07 | 许立新 | Preparation method for sodium silicate sand used for casting |
| CN103752762A (en) * | 2012-05-07 | 2014-04-30 | 周家欣 | Modified sodium silicate sand and making method thereof |
| CN104550639A (en) * | 2013-10-18 | 2015-04-29 | 青岛五洋铸机有限公司 | Molding sand sodium silicate binding and collapsing agent for casting |
| CN104353789A (en) * | 2014-10-23 | 2015-02-18 | 江苏新中洲特种合金材料有限公司 | Preparation method of sand casting sand core and prepared sand core |
Non-Patent Citations (1)
| Title |
|---|
| 姜不居: "《实用熔模铸造技术》", 31 March 2008, 辽宁科学技术出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117696829A (en) * | 2023-12-26 | 2024-03-15 | 曲阜冶通铸材科技发展有限公司 | Casting additive for sand casting and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103264142B (en) | Zircon power alternative coating for casting and preparation method thereof | |
| CN103521697B (en) | A kind of graphite cast paint | |
| CN103264141B (en) | Water-based casting zircon powder replacing coating and preparation method thereof | |
| CN103771829B (en) | High-plasticity toughened daily use ceramic product | |
| CN104550631A (en) | Composite special casting sand for replacing chromite sand | |
| HRP20120524T1 (en) | Refractory composition for glass melting furnaces | |
| CN103951380A (en) | High-whiteness high-transparency reinforced porcelain and its preparation method | |
| CN108658566B (en) | Preparation method of environment-friendly sodium silicate-bonded sand section material for producing fused zirconia-corundum bricks | |
| CN103357814A (en) | Lost foam casting-use paint formula and technology method thereof | |
| CN105347768A (en) | Gypsum powder for pressure slip-casting mold | |
| CN104193354A (en) | Permanent layer casting material of tundish and preparation method of permanent layer casting material | |
| CN107127291A (en) | A kind of water-glass sand core formula of moltening mold castings | |
| CN106513565A (en) | Foundry molding sand | |
| CN103056297A (en) | Shell-making alternative stucco technique of fusible pattern molding | |
| CN103496951B (en) | Preparation method of low-temperature sintered high-strength ultrathin ceramic tile | |
| CN107010914A (en) | A kind of water-soluble plaster core formula of moltening mold castings | |
| CN103302249A (en) | Manufacturing method for mould of cast steel gear blank | |
| CN104150922A (en) | Forsterite coating | |
| CN104927420A (en) | High-temperature resistant mark coating | |
| CN106588049A (en) | Silicon-free and carbon-free corundum water port stopper rod product for continuous casting and preparation process thereof | |
| CN105312524A (en) | Environment-friendly continuous casting covering slag for alloy steel | |
| CN103936335A (en) | Gypsum die | |
| CN107671234A (en) | A kind of moulding sand for casting formula | |
| CN106964752A (en) | A kind of resin-coated sand shell mould cast carbon steel formulation for coating material and preparation technology | |
| CN104176972A (en) | Moldproof additive for building materials |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170905 |
|
| WD01 | Invention patent application deemed withdrawn after publication |