CN109465380B - High-strength binder for cast iron - Google Patents
High-strength binder for cast iron Download PDFInfo
- Publication number
- CN109465380B CN109465380B CN201910007542.4A CN201910007542A CN109465380B CN 109465380 B CN109465380 B CN 109465380B CN 201910007542 A CN201910007542 A CN 201910007542A CN 109465380 B CN109465380 B CN 109465380B
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- CN
- China
- Prior art keywords
- parts
- binder
- coupling agent
- water glass
- cast iron
- 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.)
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- 239000011230 binding agent Substances 0.000 title claims abstract description 30
- 229910001018 Cast iron Inorganic materials 0.000 title claims abstract description 20
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 39
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 28
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 27
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000007822 coupling agent Substances 0.000 claims abstract description 18
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 17
- 235000019832 sodium triphosphate Nutrition 0.000 claims abstract description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 16
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 11
- MQWFLKHKWJMCEN-UHFFFAOYSA-N n'-[3-[dimethoxy(methyl)silyl]propyl]ethane-1,2-diamine Chemical group CO[Si](C)(OC)CCCNCCN MQWFLKHKWJMCEN-UHFFFAOYSA-N 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 238000005266 casting Methods 0.000 abstract description 10
- 230000001070 adhesive effect Effects 0.000 abstract description 9
- 239000000853 adhesive Substances 0.000 abstract description 7
- 238000010521 absorption reaction Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 239000003607 modifier Substances 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000032798 delamination Effects 0.000 abstract description 2
- 230000003993 interaction Effects 0.000 abstract description 2
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- -1 aluminum tripolyphosphate modified water glass Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 238000012412 chemical coupling Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000156 glass melt Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052909 inorganic silicate Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000005365 phosphate glass Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 229910009112 xH2O Inorganic materials 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention discloses a binder for high-strength cast iron, which belongs to the technical field of casting production and is prepared from the following raw materials in parts by weight: 35-40 parts of argil, 40-46 parts of water glass, 5-10 parts of talcum powder, 6-8 parts of aluminum tripolyphosphate, 2-3 parts of glycerol and 0.3-0.6 part of coupling agent. The interaction of the composite modifier is synergistic, the normal temperature strength of the water glass is improved, and the moisture absorption resistance and collapsibility of the binder are improved to a certain extent. The adhesive is suitable for various weather conditions, and has the advantages of mild curing reaction, good water locking property, no delamination, high strength and remarkable adhesive property.
Description
Technical Field
The invention relates to the technical field of casting production, in particular to a binder for high-strength cast iron.
Background
The construction of environment-friendly society becomes a common consensus day by day, the industry polluting the environment in industrial production faces technical reform, the binding agents commonly used by casting enterprises at home and abroad at present are organic resin binding agents, all the binding agents contain organic compounds, and the substances are volatilized from resin sand in the operation process of workers, and a large amount of toxic and harmful gases are discharged in the core making and pouring processes, so that the operation site is polluted, and the physical health of the workers is damaged. In addition, the further development of the organic resin binder is severely restricted by the characteristics of high cost, limitation on casting quality and the like.
The water glass is an inorganic binder synthesized by quartz sand and soda ash, is one of the most abundant substances on the earth, and is also a casting binder which has the smallest environmental pollution at present. Although the water glass is low in price and high in strength, the collapsibility is poor, the recycling is difficult, the moisture absorption resistance is poor, the production efficiency and the casting quality are influenced, and the application of the water glass in the field of cast iron is limited. The adhesive has an important influence on the performance of the casting, and therefore, how to coordinate and solve the performance of the adhesive in various aspects such as strength, cost, manufacturability and the like is always an important problem concerned by casting manufacturers and technicians.
Disclosure of Invention
In order to solve the technical problems, the invention provides the binder for the high-strength cast iron, which improves the normal temperature strength of the water glass and improves the moisture absorption resistance and collapsibility of the binder to a certain extent through the interaction of the composite modifiers and the synergistic effect.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the high-strength binder for cast iron is prepared from the following raw materials in parts by weight: 35-40 parts of argil, 40-46 parts of water glass, 5-10 parts of talcum powder, 6-8 parts of aluminum tripolyphosphate, 2-3 parts of glycerol and 0.3-0.6 part of coupling agent.
Preferably, the binder for high-strength cast iron is prepared from the following raw materials in parts by weight: 36-38 parts of argil, 42-44 parts of water glass, 7-9 parts of talcum powder, 6-7 parts of aluminum tripolyphosphate, 2-2.5 parts of glycerol and 0.4-0.6 part of coupling agent.
Preferably, the binder for high-strength cast iron is prepared from the following raw materials in parts by weight: 37 parts of argil, 43 parts of water glass, 8 parts of talcum powder, 6.5 parts of aluminum tripolyphosphate, 2.5 parts of glycerol and 0.5 part of coupling agent.
Preferably, the particle size of the talcum powder is 200 meshes.
Preferably, the coupling agent is a silane coupling agent.
Preferably, the silane coupling agent is N- (beta-aminoethyl) -gamma-aminopropylmethyldimethoxysilane.
The beneficial effects of the invention are as follows:
the adhesive is suitable for various weather conditions, has more obvious curing effect in cold and humid weather, mild curing reaction, good water locking property, no delamination after long-term placement, higher strength than that of the traditional adhesive and obvious adhesive property; no waste water, waste gas and waste residue are generated in the production process, and the technology is environment-friendly.
According to the invention, through scientific material selection and repeated tests, an optimal formula is determined, and the aluminum tripolyphosphate, the talcum powder, the argil and the like are used as composite modifiers to interact and synergize synergistically, so that the normal-temperature strength of the water glass can be improved, the collapsibility of the used sand of the water glass at low temperature is improved, the water glass has good compatibility with the water glass, and the water glass is endowed with hydrophobic characteristics, namely the moisture absorption resistance of the water glass is improved, so that the provided binder has higher strength, and the moisture absorption resistance and collapsibility of the binder are improved to a certain extent; the adhesive does not release toxic and harmful gases, does not have harm to the environment and human bodies, and belongs to an environment-friendly adhesive.
Aluminum tripolyphosphate as modifier is easily dissolved in water glass and can form [ PO ] with talcum powder and pottery clay4]、[SiO4]The composite glass network can improve the bonding strength of the water glass, and in addition, the aluminum tripolyphosphate modified water glass melt is separated during the cooling processThe damage and the cutting action of the prepared crystal to the bonding film and the difference between the contraction capacities of the phosphate glass and the silicate glass are great, so that the bonding film is cracked, and the high-temperature collapsibility of the glass (sand) is obviously improved; the silane coupling agent can improve the interface action of the water glass and the casting, thereby improving the bonding strength, improving the water resistance of the water glass bonding agent, generating chemical coupling action with the casting surface while serving as a curing agent, and being not easy to fall off; the modifier aluminum tripolyphosphate and talcum powder argil contain Mg2+、Al3+The isocationic, on the one hand, smaller ionic radii and higher valence ratios strongly influence the adjacent-O-H bonds, thereby weakening the-O-H bonds from H2O molecule action, resulting in improved resistance to moisture absorption, and on the other hand, to Mg2+In other words, the polymer MgHPO can be formed by adding the polymer MgHPO as a reaction component into the binder and reacting with phosphate4·xH2O, which is a three-dimensional network structure and is a non-water-soluble product, the formed cement is less affected by humidity, and water molecules are not easy to invade the cement.
Detailed Description
To facilitate understanding of those skilled in the art, the present invention will be further described with reference to specific examples:
example 1:
the high-strength binder for cast iron is prepared from the following raw materials in parts by weight: 37 parts of argil, 43 parts of water glass, 8 parts of talcum powder, 6.5 parts of aluminum tripolyphosphate, 2.5 parts of glycerol and 0.5 part of coupling agent.
The particle size of the talcum powder is 200 meshes. The coupling agent is a silane coupling agent. The silane coupling agent is N- (beta-aminoethyl) -gamma-aminopropylmethyldimethoxysilane.
The preparation method of the binder for the high-strength cast iron comprises the following steps:
firstly, adding water glass and glycerol into a reaction kettle, starting stirring, then sequentially adding argil, talcum powder and aluminum tripolyphosphate, stirring for 10 minutes, finally adding a coupling agent, stirring for 40 minutes, and discharging to obtain a finished product.
Example 2:
the high-strength binder for cast iron is prepared from the following raw materials in parts by weight: 35 parts of argil, 46 parts of water glass, 5 parts of talcum powder, 6 parts of aluminum tripolyphosphate, 2 parts of glycerol and 0.3 part of coupling agent.
The particle size of the talcum powder is 200 meshes. The coupling agent is a silane coupling agent. The silane coupling agent is N- (beta-aminoethyl) -gamma-aminopropylmethyldimethoxysilane.
The preparation method of the binder for the high-strength cast iron comprises the following steps:
firstly, adding water glass and glycerol into a reaction kettle, starting stirring, then sequentially adding argil, talcum powder and aluminum tripolyphosphate, stirring for 10 minutes, finally adding a coupling agent, stirring for 40 minutes, and discharging to obtain a finished product.
Example 3:
the high-strength binder for cast iron is prepared from the following raw materials in parts by weight: 40 parts of argil, 40 parts of water glass, 10 parts of talcum powder, 8 parts of aluminum tripolyphosphate, 3 parts of glycerol and 0.6 part of coupling agent.
The particle size of the talcum powder is 200 meshes. The coupling agent is a silane coupling agent. The silane coupling agent is N- (beta-aminoethyl) -gamma-aminopropylmethyldimethoxysilane.
The preparation method of the binder for the high-strength cast iron comprises the following steps:
firstly, adding water glass and glycerol into a reaction kettle, starting stirring, then sequentially adding argil, talcum powder and aluminum tripolyphosphate, stirring for 10 minutes, finally adding a coupling agent, stirring for 40 minutes, and discharging to obtain a finished product.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.
Claims (5)
1. The binder for the high-strength cast iron is characterized by being prepared from the following raw materials in parts by weight: 35-40 parts of argil, 40-46 parts of water glass, 5-10 parts of talcum powder, 6-8 parts of aluminum tripolyphosphate, 2-3 parts of glycerol and 0.3-0.6 part of coupling agent, wherein the coupling agent is a silane coupling agent.
2. The binder for high-strength cast iron according to claim 1, which is prepared from the following raw materials in parts by weight: 36-38 parts of argil, 42-44 parts of water glass, 7-9 parts of talcum powder, 6-7 parts of aluminum tripolyphosphate, 2-2.5 parts of glycerol and 0.4-0.6 part of coupling agent.
3. The binder for high-strength cast iron according to claim 1, which is prepared from the following raw materials in parts by weight: 37 parts of argil, 43 parts of water glass, 8 parts of talcum powder, 6.5 parts of aluminum tripolyphosphate, 2.5 parts of glycerol and 0.5 part of coupling agent.
4. The binder for high-strength cast iron according to claim 1, wherein the talc powder has a particle size of 200 mesh.
5. The binder for high-strength cast iron according to claim 1, wherein the silane coupling agent is N- (β -aminoethyl) - γ -aminopropylmethyldimethoxysilane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910007542.4A CN109465380B (en) | 2019-01-04 | 2019-01-04 | High-strength binder for cast iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910007542.4A CN109465380B (en) | 2019-01-04 | 2019-01-04 | High-strength binder for cast iron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109465380A CN109465380A (en) | 2019-03-15 |
| CN109465380B true CN109465380B (en) | 2021-08-10 |
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| CN201910007542.4A Active CN109465380B (en) | 2019-01-04 | 2019-01-04 | High-strength binder for cast iron |
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| Country | Link |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110732631B (en) * | 2019-11-28 | 2021-04-30 | 山东永创材料科技有限公司 | Binder for casting material and preparation process thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104119044A (en) * | 2014-08-08 | 2014-10-29 | 广西启利新材料科技股份有限公司 | Base geopolymer binding agent |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1125086A1 (en) * | 1983-01-14 | 1984-11-23 | Волжское объединение по производству легковых автомобилей | Coating for metal moulds |
| CN1699481A (en) * | 2004-05-21 | 2005-11-23 | 皇甫石金 | Dense potash water glass putty |
| CN100503081C (en) * | 2006-07-18 | 2009-06-24 | 沈阳汇亚通铸造材料有限责任公司 | Adhesive for casting mold, manufacturing core and method of manufacturing the same |
| US20080060778A1 (en) * | 2006-09-08 | 2008-03-13 | Abraham Velasco-Tellez | Binder composition and method of forming foundry sand cores and molds |
| CN102139340B (en) * | 2011-02-01 | 2012-10-10 | 福州大学 | Composite powder binding agent containing gelatinized phosphate starch and kaolin and preparation method thereof |
| CN102432210B (en) * | 2011-09-06 | 2013-03-27 | 浙江大学 | Method for preparing aluminum and magnesium phosphate composite bonding agents |
| CN103214973B (en) * | 2013-01-16 | 2014-12-10 | 南京工业大学 | Inorganic composite binder and preparation method thereof |
| CN106634063B (en) * | 2015-07-24 | 2019-03-19 | 广东骏丰频谱股份有限公司 | A kind of high temperature resistant far ultrared paint and its preparation method and application |
| CN106318227A (en) * | 2016-08-23 | 2017-01-11 | 武汉科技大学 | Organic-inorganic compound adhesive with elasticity and oxidization resistance and use method of organic-inorganic compound adhesive |
| CN108097866B (en) * | 2017-12-21 | 2020-02-18 | 沈阳铸造研究所有限公司 | Method for improving strength of inorganic binder sand |
| CN108097867B (en) * | 2017-12-28 | 2020-06-09 | 济南圣泉集团股份有限公司 | Moisture absorption resistant adhesive and preparation method and application thereof |
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2019
- 2019-01-04 CN CN201910007542.4A patent/CN109465380B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104119044A (en) * | 2014-08-08 | 2014-10-29 | 广西启利新材料科技股份有限公司 | Base geopolymer binding agent |
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| CN109465380A (en) | 2019-03-15 |
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Denomination of invention: Binder for high strength cast iron Effective date of registration: 20211119 Granted publication date: 20210810 Pledgee: China Everbright Bank Co.,Ltd. Weifang branch Pledgor: SHANDONG YONGCHUANG MATERIAL TECHNOLOGY CO.,LTD. Registration number: Y2021980012869 |
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Denomination of invention: An adhesive for high-strength cast iron Effective date of registration: 20230303 Granted publication date: 20210810 Pledgee: China Everbright Bank Co.,Ltd. Weifang branch Pledgor: SHANDONG YONGCHUANG MATERIAL TECHNOLOGY CO.,LTD. Registration number: Y2023980033973 |
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Address after: 262204 Yuedong Chemical Industry Park, Jiayue Town, Zhucheng City, Weifang City, Shandong Province Patentee after: Shandong Yongchuang Material Technology Co.,Ltd. Country or region after: China Address before: No. 1466, Shunhe Road, Shunwang street, Zhucheng City, Weifang City, Shandong Province Patentee before: SHANDONG YONGCHUANG MATERIAL TECHNOLOGY CO.,LTD. Country or region before: China |