CN105964892A - Light environment-friendly molding sand adopting nano titanium modified animal glue as adhesive and preparation method thereof - Google Patents
Light environment-friendly molding sand adopting nano titanium modified animal glue as adhesive and preparation method thereof Download PDFInfo
- Publication number
- CN105964892A CN105964892A CN201610457010.7A CN201610457010A CN105964892A CN 105964892 A CN105964892 A CN 105964892A CN 201610457010 A CN201610457010 A CN 201610457010A CN 105964892 A CN105964892 A CN 105964892A
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- China
- Prior art keywords
- animal glue
- molding sand
- nano
- sand
- modified animal
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Classifications
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- 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
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- 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
Abstract
The invention discloses light environment-friendly molding sand adopting nano titanium modified animal glue as an adhesive. The molding sand is characterized in that modification treatment is carried out on animal glue through utilizing nano titanium sol to prepare a novel molding sand adhesive; the adhesive firstly performs etherification treatment on an animal glue solution, and then, the animal glue solution subjected to etherification treatment and nano titanium sol are mixed for reaction, and have grafting cross linking reaction under the action of glutaraldehyde; the adhesive has excellent bonding strength and can form a compact film layer during the pouring process, and the degree of finish of the surface of a casting is improved; and besides, sodium alginate premixed with sand materials can have cross linking hybridization reaction with calcium chloride to form high-air permeability micropore channels, so that the air permeability of the molding sand is effectively improved. Compared with a traditional product, the prepared molding sand has the advantages that the molding sand is more environment-friendly, sand adhesion is not liable to occur during the pouring process, the degree of finish of the surface of the casting is high, and the molding sand has wide application prospect in the field of casting of high-precision castings.
Description
Technical field
The present invention relates to casting sand technical field, particularly relate to a kind of light-weight environment-friendly molding sand using nano-titanium modified animal glue as bonding agent and preparation method thereof.
Background technology
Molding sand refers to the material in casting for moulding, and molding sand is typically mixed according to a certain percentage by Modeling Materials such as Foundry sand, moulding sand binder and additional things.Molding sand is different by binding agent used, can be divided into clay-bonded sand, water-glass sand, cement bonded sand, resin sand etc..Molding sand effect in Foundry Production is particularly important, and the casting wasted product caused because of the poor quality of molding sand accounts for the 30～50% of the total waste product of foundry goods.Judge on ordinary meaning that moulding-sand property is mainly reflected in the following aspects: (1) has higher intensity and heat stability；(2) ability that good mobility, i.e. molding sand are mutually shifted between sand grains under external force or action of gravity own；(3) certain plasticity, i.e. molding sand deform under external force, can keep the ability of the shape given after external force is removed；(4) preferably breathability, i.e. molding sand hole is through the ability of gas；(5) high collapsibility, it is easy to defeated and dispersed cleaning.
Along with industrial expansion, requirement to foundry industry is more and more higher, and the quality of molding sand is the key factor being related to casting quality, the main flow molding sand of existing market mainly have waterglass, clay etc. one class inorganic adhesive molding sand and the organic adhesive molding sand of class such as synthetic resin, dextrin.To be primarily present collapsibility poor for the inorganic adhesive class molding sand of main flow in the market, the easy moisture absorption, the defects such as old sand utilization rate is low；Although resin sand collapsibility is good, casting accuracy is high, but it easily produces pollution gas in casting process." research of a kind of composite modified animal glue bonding agent preparation technology " literary composition describes the molding sand using modified animal glue as bonding agent, such molding sand environmental protection is degradable, defeated and dispersed effective, feasible developing direction is provided for developing novel molding sand, yet with the natural attribute of animal glue, actual application improves adhesion strength, accelerates curing rate and be still the emphasis of research.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of light-weight environment-friendly molding sand using nano-titanium modified animal glue as bonding agent and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of light-weight environment-friendly molding sand using nano-titanium modified animal glue as bonding agent, this molding sand is made up of the raw material of following weight portion: 200-400 mesh quartz sand old sand 20-30, carborundum hollow ceramic microspheres 40-50,200-300 mesh richness metallurgy of megnesium nickel slag 5-10, nano-titanium modified animal glue bonding agent 12-15, concentration be sodium alginate aqueous solution 4-5 of 5-10%, concentration be the calcium chloride water 6-10 of 1-10%.
Described nano-titanium modified animal glue bonding agent is made up of the raw material of following weight portion: solid content is the nano-titanium colloidal sol 10-15 of 20-25%, animal glue 30-40,3-chloro-2-hydroxypropyl-trimethyl ammonium chloride 1-2, mass concentration are the glutaraldehyde water solution 5-8 of 10-15%, deionized water 20-30；Its preparation method is: first mixed with deionized water by animal glue, it is heated to 50-60 DEG C, stirring adds 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride after forming homogeneous solution, nano-titanium colloidal sol is added after continuing stirring mixing 5-6h, continue stirring mixing 2-3h, finally add glutaraldehyde water solution, after being uniformly mixed, i.e. obtain described nano-titanium modified animal glue bonding agent.
The preparation method of this molding sand is: first with sodium alginate aqueous solution stirring, quartz sand old sand, carborundum hollow ceramic microspheres, rich metallurgy of megnesium nickel slag are mixed 50-80min, it is subsequently added calcium chloride water, continue stirring mixing 3-5h, stirring adds nano-titanium modified animal glue bonding agent mixing 5-10min after terminating, and to obtain final product.
The present invention utilizes nano-titanium colloidal sol to be modified animal glue processing, prepare a kind of novel molding sand bonding agent, gelatin solution etherificate is first processed by this bonding agent, subsequently by itself and nano-titanium colloidal sol hybrid reaction, and under glutaraldehyde effect graft crosslinking, this bonding agent has excellent adhesive strength, can form the film layer of densification under the conditions of casting process, improves surface finish of casting；In addition the sodium alginate being pre-mixed with sand material and the cross-linking hydridization of calcium chloride, form the micro channel that height is ventilative, effectively raise type sand permeability.Molding sand prepared by the present invention, than traditional product more environmental protection, is difficult to scab in casting process, surface finish of casting is high, has broad application prospects in high accuracy cast casting field.
Detailed description of the invention
This embodiment molding sand is made up of the raw material of following weight portion: the calcium chloride water 6 that sodium alginate aqueous solution 4 that 200 mesh quartz sand old sands 20, carborundum hollow ceramic microspheres 40,200 mesh richness metallurgy of megnesium nickel slag 5, nano-titanium modified animal glue bonding agent 12, concentration are 5%, concentration are 1%.
Wherein nano-titanium modified animal glue bonding agent is made up of the raw material of following weight portion: glutaraldehyde water solution 5, the deionized water 20 that nano-titanium colloidal sol 10 that solid content is 20%, animal glue 30,3-chloro-2-hydroxypropyl-trimethyl ammonium chloride 1, mass concentration are 10%；Its preparation method is: first mixed with deionized water by animal glue, it is heated to 50 DEG C, stirring adds 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride after forming homogeneous solution, nano-titanium colloidal sol is added after continuing stirring mixing 5h, continue stirring mixing 2h, finally add glutaraldehyde water solution, after being uniformly mixed, i.e. obtain described nano-titanium modified animal glue bonding agent.
The preparation method of this molding sand is: first with sodium alginate aqueous solution stirring, quartz sand old sand, carborundum hollow ceramic microspheres, rich metallurgy of megnesium nickel slag are mixed 50min, it is subsequently added calcium chloride water, continue stirring mixing 3h, stirring adds nano-titanium modified animal glue bonding agent mixing 5min after terminating, and to obtain final product.
The result that the molding sand that this embodiment prepares obtains according to associated test standards's test is as follows:
Green compression strength: 112.5KPa；Compact rate of molding: 41.8%；Air penetrability: 105；Hot green tensile strength: 55.6KPa；Shatter index: 90%.
Claims (3)
1. one kind using nano-titanium modified animal glue as the light-weight environment-friendly molding sand of bonding agent, it is characterized in that, this molding sand is made up of the raw material of following weight portion: 200-400 mesh quartz sand old sand 20-30, carborundum hollow ceramic microspheres 40-50,200-300 mesh richness metallurgy of megnesium nickel slag 5-10, nano-titanium modified animal glue bonding agent 12-15, concentration be sodium alginate aqueous solution 4-5 of 5-10%, concentration be the calcium chloride water 6-10 of 1-10%.
A kind of light-weight environment-friendly molding sand using nano-titanium modified animal glue as bonding agent, it is characterized in that, described nano-titanium modified animal glue bonding agent is made up of the raw material of following weight portion: solid content is the nano-titanium colloidal sol 10-15 of 20-25%, animal glue 30-40,3-chloro-2-hydroxypropyl-trimethyl ammonium chloride 1-2, mass concentration are the glutaraldehyde water solution 5-8 of 10-15%, deionized water 20-30；Its preparation method is: first mixed with deionized water by animal glue, it is heated to 50-60 DEG C, stirring adds 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride after forming homogeneous solution, nano-titanium colloidal sol is added after continuing stirring mixing 5-6h, continue stirring mixing 2-3h, finally add glutaraldehyde water solution, after being uniformly mixed, i.e. obtain described nano-titanium modified animal glue bonding agent.
A kind of preparation method of the light-weight environment-friendly molding sand using nano-titanium modified animal glue as bonding agent, it is characterized in that, described preparation method is: first with sodium alginate aqueous solution stirring, quartz sand old sand, carborundum hollow ceramic microspheres, rich metallurgy of megnesium nickel slag are mixed 50-80min, it is subsequently added calcium chloride water, continue stirring mixing 3-5h, stirring adds nano-titanium modified animal glue bonding agent mixing 5-10min after terminating, and to obtain final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610457010.7A CN105964892A (en) | 2016-06-22 | 2016-06-22 | Light environment-friendly molding sand adopting nano titanium modified animal glue as adhesive and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610457010.7A CN105964892A (en) | 2016-06-22 | 2016-06-22 | Light environment-friendly molding sand adopting nano titanium modified animal glue as adhesive and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN105964892A true CN105964892A (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610457010.7A Pending CN105964892A (en) | 2016-06-22 | 2016-06-22 | Light environment-friendly molding sand adopting nano titanium modified animal glue as adhesive and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105945210A (en) * | 2016-05-13 | 2016-09-21 | 欧振云 | Binder for casting and preparation method thereof |
Citations (4)
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|---|---|---|---|---|
| JPS57142740A (en) * | 1981-02-28 | 1982-09-03 | Toyota Motor Corp | Binder for ceramic sheath of precision mold |
| CN104530912A (en) * | 2015-01-06 | 2015-04-22 | 李梦 | Nano titanium modified epoxy resin aircraft coating for electromagnetic shielding |
| CN105081202A (en) * | 2015-08-14 | 2015-11-25 | 郭伟 | Nano diatomite containing modified furan resin sand for steel casting and preparation method for nano diatomite containing modified furan resin sand |
| CN105414461A (en) * | 2015-11-25 | 2016-03-23 | 铜陵市经纬流体科技有限公司 | High-permeability compact composite modified sodium silicate-bonded sand for pump valve castings and preparation method of high-permeability compact composite modified sodium silicate-bonded sand |
-
2016
- 2016-06-22 CN CN201610457010.7A patent/CN105964892A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57142740A (en) * | 1981-02-28 | 1982-09-03 | Toyota Motor Corp | Binder for ceramic sheath of precision mold |
| CN104530912A (en) * | 2015-01-06 | 2015-04-22 | 李梦 | Nano titanium modified epoxy resin aircraft coating for electromagnetic shielding |
| CN105081202A (en) * | 2015-08-14 | 2015-11-25 | 郭伟 | Nano diatomite containing modified furan resin sand for steel casting and preparation method for nano diatomite containing modified furan resin sand |
| CN105414461A (en) * | 2015-11-25 | 2016-03-23 | 铜陵市经纬流体科技有限公司 | High-permeability compact composite modified sodium silicate-bonded sand for pump valve castings and preparation method of high-permeability compact composite modified sodium silicate-bonded sand |
Non-Patent Citations (1)
| Title |
|---|
| 李英民 等: "改性动物胶原蛋白粘结剂的研究进展", 《2015中国铸造活动周论文集》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105945210A (en) * | 2016-05-13 | 2016-09-21 | 欧振云 | Binder for casting and preparation method thereof |
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Application publication date: 20160928 |
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