CN1006527B - Sodium silicate sand collapsing agent - Google Patents
Sodium silicate sand collapsing agentInfo
- Publication number
- CN1006527B CN1006527B CN 85102900 CN85102900A CN1006527B CN 1006527 B CN1006527 B CN 1006527B CN 85102900 CN85102900 CN 85102900 CN 85102900 A CN85102900 A CN 85102900A CN 1006527 B CN1006527 B CN 1006527B
- Authority
- CN
- China
- Prior art keywords
- water glass
- glass sand
- breakdown
- agent
- sand
- 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.)
- Expired
Links
Abstract
The problem of the breakdown property of water glass sand is difficult to solve. The existing breakdown agent does not have ideal breakdown effect. The present invention provides a W84 type breakdown agent for water glass sand. The W84-I type breakdown agent is prepared from 1 portion of phosphates and 0.5 to 2 portions of machine oil; the W84-II type breakdown agent is prepared from 1 portion of phosphates, 0.3 to 1 portion of machine oil, 0.3 to 0.6 portion of glycerol and 0.03 to 0.07 portion of potassium permanganate. When being applied to casting production, the W84-I type breakdown agent for water glass sand has obvious effect on improving the breakdown property of water glass sand. The W84-I type breakdown agent for water glass sand is an ideal breakdown agent for improving the breakdown property of water glass sand, and develops a new way for widening the application range of water glass sand.
Description
The invention relates to and be applied to Foundry Production, improve sodium silicate sand collapsibility novel defeated and dispersed dose.
Solving the collapsibility of water-glass sand, is domestic and international founder author long-cherished wish for many years.Done great deal of experimental work, type (core) sand that present domestic and international various defeated and dispersed dose of developing or modified water glass are prepared is at room temperature tensile strength＞15Kg/cm
2, (or resistance to compression＞100Kg/cm
2, shearing resistance＞30Kg/cm
2) time, 700～1150 ℃ of average residual tensile strength all＞0.2Kg/cm
2(or resistance to compression＞3Kg/cm
2, shearing resistance＞0.5Kg/cm
2).Its defeated and dispersed COEFFICIENT K-all more than 2, the defeated and dispersed COEFFICIENT K 0 of high temperature
*All more than 1.And defeated and dispersed dose of being adopted or modifier mainly contain organic matters such as glucose, syrup, starch, alditol slag, humic acid, CMC, PVA, methylcellulose, hydroxypropyl methylcellulose, polyvinyl acetate, lignin, polyacrylamide, native flour, ketone resin, residual oil, coal dust and magnesia, aluminium oxide, alumina cement, iron oxide red, calcium carbonate, zinc carbonate, lithium carbonate, graphite powder, bentonite, chromite powder etc.And be based on organic principle.
The objective of the invention is to make a kind of based on inorganic composition, knockability is good, and consumption is few, and gas forming amount is little, and cost is low, helps environmental protection, can improve the disperser for water-glass sand of sodium silicate sand collapsibility better.
The disperser for water-glass sand that we develop, its prescription is as follows: the I type is a phosphate: machine oil=1: (0.5～2); The II type is a phosphate: machine oil: glycerine: potassium permanganate=1: (0.3～1): (0.3～0.6): (0.03～0.07).(being weight ratio).Defeated and dispersed dose of key material of these two kinds of models is phosphate and machine oil, and glycerine only works the booster action that improves water-glass sand normal temperature baked tensile strength in the II type, potassium permanganate then is a kind of oxidant, can impel the machine oil oxidation and becomes acid, helps the waterglass sclerosis.So same inventive concept of this two kinds defeated and dispersed dose real genus.Defeated and dispersed dose of this kind has obvious effects to improving sodium silicate sand collapsibility, adds the water-glass sand (the waterglass addition is 5%) that accounts for 1.3% defeated and dispersed dose of sand weight, and the residual tensile strength of its sample mean is not more than 0.3Kg/cm in the time of 400～700 ℃
2, in the time of 700～1150 ℃, be not more than 0.1Kg/cm
2, its defeated and dispersed COEFFICIENT K is less than 1, and the defeated and dispersed COEFFICIENT K 0 of high temperature is less than 0.2.And water-glass sand normal temperature working strength, mouldability and core table peace property are all better.As seen not only main component is different with similar products at home and abroad for the disperser for water-glass sand that we developed, and collapsibility performance will be got well.(seeing that " Hebei Polytechnical College's examining report " replenishes circumstantial evidence).
The water-glass sand that adds defeated and dispersed dose of this kind can replace resin sand to be applied to hot-box core making process, can make complicated II, III level core, also can be used as the substitute material of various oil-sands, and can use common heating, CO
2, produce from several different methods such as hard.That defeated and dispersed dose of this kind also has is nontoxic, have no irritating odor, and helps environmental protection, is easy to advantages such as popularization.The cost of this water-glass sand only is about 1/3rd of a resin sand, and gas forming amount is low, has significantly economic benefit and social benefit.
(annotate: the implication of K and K0 value and computational methods see the 3rd phase of nineteen eighty-three, " casting engineering " for details)
Claims (2)
1, a kind of Foundry Production that is used for is improved the disperser for water glass sand of sodium silicate sand collapsibility, and the prescription that it is characterized in that defeated and dispersed dose is a phosphate; Machine oil=1: (0.5～2).
2, a kind of Foundry Production that is used for, improve the disperser for water glass sand of sodium silicate sand collapsibility, the prescription that it is characterized in that defeated and dispersed dose is a phosphate: machine oil: glycerine: potassium permanganate=1: (0.3～1): (0.3～0.6): (0.03～0.07).
(annotating: be weight ratio)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85102900 CN1006527B (en) | 1985-04-01 | 1985-04-01 | Sodium silicate sand collapsing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85102900 CN1006527B (en) | 1985-04-01 | 1985-04-01 | Sodium silicate sand collapsing agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85102900A CN85102900A (en) | 1986-09-17 |
| CN1006527B true CN1006527B (en) | 1990-01-24 |
Family
ID=4792845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85102900 Expired CN1006527B (en) | 1985-04-01 | 1985-04-01 | Sodium silicate sand collapsing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1006527B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101259515B (en) * | 2007-03-05 | 2011-09-07 | 上海市机械制造工艺研究所有限公司 | CO2 hardened silicate-bonded sand additive agent and formative technology thereof |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259379B (en) * | 2014-09-30 | 2016-06-01 | 济南圣泉集团股份有限公司 | For the defeated and dispersed toughener of sodium silicate sand |
| CN105344920A (en) * | 2015-10-08 | 2016-02-24 | 蚌埠冠宜型材科技有限公司 | Sodium silicate binder for improving collapsibility |
| CN107716845A (en) * | 2017-09-01 | 2018-02-23 | 东风精密铸造安徽有限公司 | A kind of modified sodium silicate sand dispersant and preparation method thereof |
| CN109047648A (en) * | 2018-09-26 | 2018-12-21 | 安徽江杰实业有限公司 | A kind of defeated and dispersed reinforcing agent of sodium silicate sand used for casting |
-
1985
- 1985-04-01 CN CN 85102900 patent/CN1006527B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101259515B (en) * | 2007-03-05 | 2011-09-07 | 上海市机械制造工艺研究所有限公司 | CO2 hardened silicate-bonded sand additive agent and formative technology thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN85102900A (en) | 1986-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104815943B (en) | A kind of used in aluminium alloy casting modified phosphate inorganic binder and preparation method thereof | |
| CN108516845A (en) | A kind of oxidation chromium composite spinelle brick and preparation method thereof | |
| CN102173693A (en) | Clay slurry curing agent | |
| CN101219902A (en) | Environment-protection dry type vibrating material and production method thereof | |
| CN106929029A (en) | A kind of new loam wall special-purpose soil curing agent and preparation method thereof | |
| CN107433319A (en) | A kind of high-performance environment-friendly casting sand and preparation method thereof | |
| CN1006527B (en) | Sodium silicate sand collapsing agent | |
| CN103551489A (en) | Foundry molding sand containing blast furnace slag | |
| CN112341216B (en) | Self-curing tundish dry material and preparation method thereof | |
| JPS6092040A (en) | Collapsible sand core for high-pressure casting | |
| CN104140219B (en) | A kind of waterproofing and anti-leakage agent of concrete | |
| CN107056260A (en) | It is a kind of to be used for blocking environment-friendly type anhydrous stemming of blast furnace tapping hole and preparation method thereof | |
| CN112191798A (en) | Molding sand formula for thin-wall gray iron engine cylinder body | |
| CN111807738A (en) | Additive for geopolymer | |
| CN110315024A (en) | A kind of novel casting molding sand | |
| CN87101502A (en) | Producing modified organic water-glass bonder | |
| JPS5844945A (en) | Mold coating material for prevention of carburization and sulfurization used for organic self-hardening mold | |
| CN111606721A (en) | Environment-friendly bonding agent for refractory material and preparation method thereof | |
| US3784385A (en) | Method of preparing mix for producing refractory gas concrete and the product obtained thereby | |
| CN103861994B (en) | For the production of the coating and preparation method thereof of high-silicon cast iron sheath | |
| CN106630905A (en) | Acid-resistant and alkali-resistant cement and preparation method thereof | |
| JP2017177212A (en) | Cement composition for additive manufacturing apparatus, and molding product thereof | |
| CN101417871A (en) | EPS plate and preparation method thereof | |
| CN110002782A (en) | A kind of concrete compaction reinforcing agent | |
| CN104692810B (en) | A kind of metal composite aoxidizes chrome brick preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |