CN101879577B - Water glass sand modified collapsing agent and preparation method thereof - Google Patents
Water glass sand modified collapsing agent and preparation method thereof Download PDFInfo
- Publication number
- CN101879577B CN101879577B CN2010102027797A CN201010202779A CN101879577B CN 101879577 B CN101879577 B CN 101879577B CN 2010102027797 A CN2010102027797 A CN 2010102027797A CN 201010202779 A CN201010202779 A CN 201010202779A CN 101879577 B CN101879577 B CN 101879577B
- Authority
- CN
- China
- Prior art keywords
- collapsing
- glass sand
- water glass
- preparation
- collapsing agent
- 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 - Fee Related
Links
Abstract
The invention relates to a collapsing agent and a preparation method thereof, in particular to a water glass sand modified collapsing agent and the preparation method thereof. The water glass sand modified collapsing agent is characterized by being prepared from the following components in percentage by weight: 1 to 3 percent of high temperature collapsing substance, 92 to 95 percent of low temperature collapsing substance and 3 to 5 percent of strength adhesion promoter. The preparation method of the water glass sand modified collapsing agent is characterized by comprising the following steps of: adding the high temperature collapsing substance and the low temperature collapsing substance into a stirring tank for full mixing during production; adding the strength adhesion promoter into the stirring tank after 2 to 3 hours; and mixing the mixture for 1 to 2 hours to obtain the collapsing agent. Therefore, the collapsing agent and the preparation method have the advantages of overcoming the defect of conventional 'water explosion blast cleaning', fulfilling the aim of dry method mechanical vibration shakeout, solving various problems of crack, low glossiness, more air pores and thelike of a casting, greatly improving the casting quality and reducing the rejection ratio.
Description
(1) technical field
The present invention relates to a kind of defeated and dispersed dose and preparation method thereof, particularly a kind of water glass sand modified collapsing agent and preparation method thereof.
(2) background technology
Water-glass sand is as casting binder, and it has, and the source is wide, price is low, intensity is high, gas forming amount is few, certain plasticity is arranged when smokelessly nontoxic, harmless, free from environmental pollution after the cast, energy savings, high temperature, can prevent the crackle of thin-section casting; Its hardening process is simple simultaneously, can alleviate moulding (core) labour intensity, shortens advantages such as production cycle significantly; But because its collapsibility performance is poor, cause the sand removal difficulty, return sand to be difficult for reuse; Therefore it can not extensive use on Foundry Production, and is domestic in recent decades in the application and development of synthetic resin, has partly replaced water-glass sand; But organic resin costs an arm and a leg; Harmful, China's production of resins can't be satisfied the demand for the moment in addition, in the case; Although the water-glass sand cast cleaning is difficult, those can not mainly use water-glass sand with the big-and-middle-sized foundry goods of wet type.
Be widely used in the particularly production of steel-casting of domestic and international Foundry Production with water-glass sand as the waterglass casting technique of binding agent; This method has that equipment is simple, floor space is little, the formative technology processing ease, the core gas forming amount is few, the foundry goods gas defects is few, can make high accuracy casting mold, nontoxic, tasteless, abundant raw materials, the excellent honest and clean advantage of price with wooden model to the unit small lot batch manufacture; But in long-term use, exist sodium silicate sand collapsibility poor, be difficult to cleaning, regenerating used reuse difficult, consume problems such as a large amount of fresh sands, seriously restricted the development of water-glass sand technology.Traditional defeated and dispersed dose is that cost solves collapsibility with sand mold intensity, causes the further think ofization of grittiness ability, and " water explosition blast cleaning " technology can cause foundry goods inside to have microfissure, and railway speed increase is restricted.
(3) summary of the invention
The present invention provides water glass sand modified collapsing agent that a kind of collapsibility is good, percent defective is low and preparation method thereof in order to remedy the deficiency of prior art.
The present invention realizes through following technical scheme:
A kind of water glass sand modified collapsing agent is characterized in that: processed by following components in weight percentage:
The defeated and dispersed material 1%-3% of high temperature
The defeated and dispersed material 92%-95% of low temperature
Intensity adhesion promoter 3%-5%.
The defeated and dispersed material of said high temperature is aluminium oxide, iron oxide, manganese monoxide or cupric oxide; The defeated and dispersed material of low temperature is a hydrogenated starch hydrolysate; The intensity adhesion promoter is POLYPROPYLENE GLYCOL or polyvinyl alcohol.
The preparation method of water glass sand modified collapsing agent of the present invention comprises the steps:
In process of production, add defeated and dispersed material of high temperature and the defeated and dispersed material of low temperature earlier and in agitator tank, mix fully, add the intensity adhesion promoter after 2-3 hour again, mix getting final product in 1-2 hour.
Water glass sand modified collapsing agent is three kinds of granular materials that raw material mixes.
The key technical indexes of this product
Under the normal sand condition: 24 hours dry-pressing intensity >=3.0MPa
100 ℃ of retained strength≤0.3MPa
This product has just passed through users such as two or seven carshops of the Ministry of Railways, Taiyuan locomotive works, strain state, Hunan carshop under the condition of the test manufacture of small lot feedback proves.These properties of product are good, change on 8A bolster, bogie side frame and commentaries on classics 8G bolster, the bogie side frame at rolling stock and use, and casting section does not have casting flaws such as burning into sand, flawless, pore-free, and the section packing meets the requirement of TB/T2239, and all indexs meet the ministry standard regulation.
The several prods performance comparison
| Water glass sand modified collapsing agent of the present invention | Common disperser for water-glass sand | The product of foreign corporation | |
| Dry-pressing intensity (MPa) | ≥3.0 | ≥2.0 | ≥2.5 |
| Retained strength (MPa) | ≤0.3 | ≤1.5 | ≤1.0 |
| Sand removal property | The dry coal-falling sand foundry goods does not have microfissure | The water explosition blast cleaning foundry goods has microfissure | Water-soluble sand removal has microfissure |
| Gas forming amount (ML/g) | ≤12 | ≤16 | ≤15 |
| Collapsibility | Good | Generally | Generally |
| The labour intensity percent defective | Low, using water wisely | High | Generally |
| Price | Moderate | Low | High |
The invention has the beneficial effects as follows: the defective that has overcome tradition " water explosition blast cleaning "; Realized the purpose of dry method mechanical oscillation knockouts; And solved foundry goods problems such as crackle, glossiness is low, pore is many are arranged, improved casting quality greatly, reduced percent defective.
(4) specific embodiment
Embodiment 1:
The preparation method of water glass sand modified collapsing agent comprises the steps:
In process of production, add 2 kilograms aluminium oxide and 93 kilograms hydrogenated starch hydrolysate earlier and in agitator tank, mix fully, add 5 kilograms polyvinyl alcohol after 2.5 hours again, mix getting final product in 1.5 hours.
Embodiment 2:
The preparation method of water glass sand modified collapsing agent comprises the steps:
In process of production, add 1 kilogram iron oxide and 95 kilograms hydrogenated starch hydrolysate earlier and in agitator tank, mix fully, add 4 kilograms POLYPROPYLENE GLYCOL after 2 hours again, mix getting final product in 1 hour.
Embodiment 3:
The preparation method of water glass sand modified collapsing agent comprises the steps:
In process of production, add 3 kilograms cupric oxide and 92 kilograms hydrogenated starch hydrolysate earlier and in agitator tank, mix fully, add 5 kilograms polyvinyl alcohol after 3 hours again, mix getting final product in 2 hours.
Embodiment 4:
Water glass sand modified collapsing agent: the component by following weight is processed:
2 kilograms of iron oxide, 93 kilograms of hydrogenated starch hydrolysates, 5 kilograms of polyvinyl alcohol.
Embodiment 5:
Water glass sand modified collapsing agent: the component by following weight is processed:
3 kilograms of manganese monoxides, 92 kilograms of hydrogenated starch hydrolysates, 5 kilograms of POLYPROPYLENE GLYCOLs.
Claims (1)
1. water glass sand modified collapsing agent is characterized in that: processed by following components in weight percentage:
The defeated and dispersed material 1%-3% of high temperature
The defeated and dispersed material 92%-95% of low temperature
Intensity adhesion promoter 3%-5%;
The defeated and dispersed material of high temperature is aluminium oxide, iron oxide, manganese monoxide or cupric oxide;
The defeated and dispersed material of low temperature is a hydrogenated starch hydrolysate;
The intensity adhesion promoter is POLYPROPYLENE GLYCOL or polyvinyl alcohol;
Water glass sand modified collapsing agent is three kinds of granular materials that component mixes;
Water glass sand modified collapsing agent is prepared from following method: in process of production, add defeated and dispersed material of high temperature and the defeated and dispersed material of low temperature earlier and in agitator tank, mix fully, add the intensity adhesion promoter after 2-3 hour again, mix getting final product in 1-2 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102027797A CN101879577B (en) | 2010-06-18 | 2010-06-18 | Water glass sand modified collapsing agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102027797A CN101879577B (en) | 2010-06-18 | 2010-06-18 | Water glass sand modified collapsing agent and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101879577A CN101879577A (en) | 2010-11-10 |
| CN101879577B true CN101879577B (en) | 2012-11-21 |
Family
ID=43051786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102027797A Expired - Fee Related CN101879577B (en) | 2010-06-18 | 2010-06-18 | Water glass sand modified collapsing agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101879577B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102366812B (en) * | 2011-10-11 | 2016-01-20 | 华文蔚 | A kind of preparation method of sodium silicate sand used for casting |
| CN103817287B (en) * | 2014-02-27 | 2016-06-22 | 常熟市伟恒模具铸造有限公司 | The Glass tube mould foundry goods manufacturing process that molding sand can be recycled |
| 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 |
| CN105855455A (en) * | 2016-05-30 | 2016-08-17 | 柳州市柳晶科技有限公司 | Inorganic precoated sand and manufacturing method thereof |
| CN107116175B (en) * | 2017-04-28 | 2018-12-04 | 河南金耐源新材料科技有限公司 | Water glass sand modified dose, modified sodium silicate sand and preparation method |
| CN107243592B (en) * | 2017-05-16 | 2018-11-02 | 浙江遂金特种铸造有限公司 | Inorganic nano particle modified waterglass and preparation method thereof |
| CN107175311B (en) * | 2017-06-06 | 2019-02-15 | 山东省科学院新材料研究所 | A kind of sodium silicate sand and the sand mould casting method based on water jet sand removal |
| JP7109444B2 (en) * | 2017-08-03 | 2022-07-29 | 旭有機材株式会社 | Mold material and method for manufacturing same, method for manufacturing mold, and method for recycling recovered refractory aggregate |
| CN108655331A (en) * | 2018-06-01 | 2018-10-16 | 平顶山市伟业铸造材料有限公司 | A kind of cold core modifying agent |
| 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 |
| CN109909443B (en) * | 2019-04-23 | 2020-11-20 | 义乌市君胜科技有限公司 | Preparation method of sodium silicate-bonded sand |
-
2010
- 2010-06-18 CN CN2010102027797A patent/CN101879577B/en not_active Expired - Fee Related
Non-Patent Citations (4)
| Title |
|---|
| 卢以.改性水玻璃砂生产上应用效益分析.《东方电机》.1994,(第3期),98-101. * |
| 李焕臣.改性水玻璃砂溃散性的研究.《辽宁工学院学报》.2002,第22卷(第6期),32-33. * |
| 王桂芹.水玻璃砂高效溃散剂的实验研究.《热加工工艺》.1996,(第3期),11-13. * |
| 阎淑芝.AK-Ⅱ型CO2水玻璃砂溃散剂的研究及应用.《洛阳工学院学报》.1992,第13卷(第2期),6-12. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101879577A (en) | 2010-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101879577B (en) | Water glass sand modified collapsing agent and preparation method thereof | |
| AU2017214133B2 (en) | Curing agent for water glass molding and manufacturing method and use thereof | |
| CN110818356A (en) | Preparation method of high-performance carbonized reinforced concrete | |
| CN102728776A (en) | Low-cost environment-friendly molding sand and preparation method thereof | |
| CN112028564B (en) | By using CO2Recycled concrete block prepared from reinforced recycled powder | |
| CN101934342B (en) | Molding sand for casting pressure plates | |
| CN106040965A (en) | Molding sand for casting | |
| CN101733361A (en) | Sand burning preventing coal dust free green sand for casting and preparation method thereof | |
| US20220234094A1 (en) | High-temperature-resistant casting system and preparation method thereof | |
| CN103586394A (en) | Yellow loam natural clay moulding sand and preparation method thereof | |
| CN102357647A (en) | Environmentally-friendly magnesia sand for casting and preparation process thereof | |
| CN107963908B (en) | High-strength light brick and preparation method thereof | |
| CN105108035A (en) | Low-thermal-expansion high-strength modified composite sodium silicate-bonded sand for steel casting and preparation method of modified composite sodium silicate-bonded sand | |
| CN105081201A (en) | High-lubricity modified composite sodium silicate-bonded sand for steel casting and preparation method of high-lubricity modified composite sodium silicate-bonded sand | |
| CN103567367A (en) | Anti-sticking molding sand for casting and preparation method thereof | |
| CN111889616A (en) | Curing agent for casting and application thereof | |
| CN103567364A (en) | Molding sand for cast aluminum and preparation method thereof | |
| CN113828740A (en) | Organic silicon slag heating and heat-insulating riser sleeve and preparation method thereof | |
| CN110814273B (en) | Modified molding sand with furan resin loaded with nano ceramic | |
| CN106542832A (en) | A kind of glass furnace refractory brick and preparation method thereof | |
| CN105478656A (en) | High-green-compression-strength green moulding sand for iron casting and preparation method of high-green-compression-strength green moulding sand | |
| CN105057565A (en) | High-quality molding sand and preparation method thereof | |
| CN103567354A (en) | Green sand for nonferrous alloy casting and preparation method thereof | |
| CN114273602A (en) | Environment-friendly resin sand for magnesium alloy casting automatic molding production line and preparation method thereof | |
| CN110586847B (en) | High-temperature stable precoated sand |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20170618 |