CN111018454A - Heat preservation agent capable of prolonging dropping time and preparation method thereof - Google Patents
Heat preservation agent capable of prolonging dropping time and preparation method thereof Download PDFInfo
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- CN111018454A CN111018454A CN201911273986.9A CN201911273986A CN111018454A CN 111018454 A CN111018454 A CN 111018454A CN 201911273986 A CN201911273986 A CN 201911273986A CN 111018454 A CN111018454 A CN 111018454A
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- prolonging
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
Abstract
The invention discloses a heat preservation agent capable of prolonging dropping time and a preparation method thereof, the heat preservation agent comprises sepiolite wool, low-calcium aluminate cement, inorganic adhesive, lithium bentonite and nano ceramic microspheres, and the raw materials comprise the following components in percentage by weight: 10-20% of sepiolite wool, 14-20% of low-calcium aluminate cement, 28-36% of inorganic binder, 2-5% of lithium bentonite, 4-8% of nano ceramic microspheres, 10-15% of pure water, 3-5% of polyvinyl alcohol and 7-10% of gelatin; a preparation method of a heat preservation agent capable of prolonging the falling time comprises the following steps of firstly, selecting raw materials; step two, mixing base materials; step three, adding an auxiliary agent; step four, heating for use; the heat preservation agent can prolong the falling time, the traditional heat preservation agent is improved and optimized, the formula material of the heat preservation agent is more common and beneficial to the later-stage preparation, the attachment time of the heat preservation agent attached to a mould is prolonged, the production time of a mould casting plate is further prolonged, the production efficiency is improved, and the yield is increased.
Description
Technical Field
The invention relates to the technical field of chemical engineering, in particular to a heat preservation agent capable of prolonging the falling time and a preparation method thereof.
Background
In the process of casting the plate in the market, the plate is usually cast by using a mold, a heat insulating agent is usually used to reduce heat loss in the process of casting the plate, when the mold needs to be opened and closed in the production process to circulate, the two molds collide to generate vibration in the process of opening and closing the mold, the heat insulating agent falls off along with the vibration of the mold, the time for attaching the traditional heat insulating agent to the mold is about two hours, and the processing production efficiency and quality of the mold are seriously influenced.
Disclosure of Invention
The invention aims to provide a heat preservation agent capable of prolonging the falling time and a preparation method thereof, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a heat preservation agent capable of prolonging dropping time comprises sepiolite wool, low-calcium aluminate cement, an inorganic binder, lithium bentonite and nano ceramic microspheres, wherein the raw materials are respectively prepared from the following components in percentage by weight: 10-20% of sepiolite wool, 14-20% of low-calcium aluminate cement, 28-36% of inorganic binder, 2-5% of lithium bentonite, 4-8% of nano ceramic microspheres, 10-15% of pure water, 3-5% of polyvinyl alcohol and 7-10% of gelatin.
A preparation method of a heat preservation agent capable of prolonging the falling time comprises the following steps of firstly, selecting raw materials; step two, mixing base materials; step three, adding an auxiliary agent; step four, heating for use;
in the first step, the components are respectively in the following proportions: 10-20% of sepiolite wool, 14-20% of low-calcium aluminate cement, 28-36% of inorganic binder, 2-5% of lithium bentonite, 4-8% of nano ceramic microspheres, 10-15% of pure water, 3-5% of polyvinyl alcohol and 7-10% of gelatin;
in the second step, the sepiolite wool and the low-calcium aluminate cement selected in the first step are directly put into the inorganic adhesive selected in the first step, and then a stirrer is used for stirring and mixing the mixture;
in the third step, the lithium bentonite and the nano ceramic microspheres selected in the first step are put into the mixture obtained in the second step, and then a stirrer is used for stirring and mixing the mixture;
in the fourth step, the mixture obtained in the third step is heated in a waterproof way, then pure water is taken to dissolve polyvinyl alcohol and gelatin, and then the mixture is poured into the mixture heated in the waterproof way, and then the mixture is mixed and stirred for use.
According to the technical scheme, the inorganic adhesive is one of a sodium silicate solution, a phosphoric acid solution and an aluminum sulfate solution.
According to the technical scheme, the lithium bentonite is prepared by modifying natural bentonite with lithium carbonate.
According to the technical scheme, the rotating speed of the stirrer used in the second step is 80-120r/min, and the stirring time is 1 h.
According to the technical scheme, the rotating speed of the stirrer used in the third step is 80-120r/min, and the stirring time is 0.2 h.
According to the technical scheme, the heating temperature of the water-resisting layer in the fourth step is 60 ℃, and the maintaining time is 72 hours.
According to the technical scheme, the mixing and stirring time in the fourth step is 2 min.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, the heat preservation agent is improved and optimized, meanwhile, the formula of the heat preservation agent is easy to find at a later stage, so that the heat preservation agent is convenient to prepare, the heat preservation agent is made of a porous material by using lithium bentonite and nano ceramic microspheres, and water is infiltrated into the heat preservation agent by heating the heat preservation agent, so that the connection capacity of the heat preservation agent is increased, the absorption capacity of the heat preservation agent and a mold is further improved, the mold casting efficiency is prolonged, and the casting quality is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution:
example 1:
a heat preservation agent capable of prolonging dropping time comprises sepiolite wool, low-calcium aluminate cement, an inorganic binder, lithium bentonite and nano ceramic microspheres, wherein the raw materials are respectively prepared from the following components in percentage by weight: 10-20% of sepiolite wool, 14-20% of low-calcium aluminate cement, 28-36% of inorganic binder, 2-5% of lithium bentonite, 4-8% of nano ceramic microspheres, 10-15% of pure water, 3-5% of polyvinyl alcohol and 7-10% of gelatin.
A preparation method of a heat preservation agent capable of prolonging the falling time comprises the following steps of firstly, selecting raw materials; step two, mixing base materials; step three, adding an auxiliary agent; step four, heating for use;
in the first step, the components are respectively in the following proportions: selecting 18% of sepiolite wool, 16% of low-calcium aluminate cement, 30% of inorganic adhesive, 4% of lithium bentonite, 6% of nano ceramic microspheres, 13% of pure water, 4% of polyvinyl alcohol and 9% of gelatin;
in the second step, the sepiolite wool and the low-calcium aluminate cement selected in the first step are directly put into the inorganic adhesive selected in the first step, the inorganic adhesive is one of a sodium silicate solution, a phosphoric acid solution and an aluminum sulfate solution, then the mixture is stirred and mixed by using a stirrer, the rotating speed of the stirrer is 80-120r/min, and the stirring time is 1 h;
in the third step, the lithium bentonite and the nano ceramic microspheres selected in the first step are placed into the mixture obtained in the second step, the lithium bentonite is prepared by modifying natural bentonite with lithium carbonate, and then the mixture is stirred and mixed by using a stirrer, wherein the rotating speed of the stirrer is 80-120r/min, and the stirring time is 0.2 h;
in the fourth step, the mixture obtained in the third step is heated in a waterproof way, the heating temperature in the waterproof way is 60 ℃, the maintaining time is 72 hours, then the pure water is taken to dissolve the polyvinyl alcohol and the gelatin, the mixture is poured into the mixture after the waterproof way is heated, and then the mixture is mixed and stirred for use, and the mixing and stirring time is 2 min.
Example 2:
a heat preservation agent capable of prolonging dropping time comprises sepiolite wool, low-calcium aluminate cement, an inorganic binder, lithium bentonite and nano ceramic microspheres, wherein the raw materials are respectively prepared from the following components in percentage by weight: 10-20% of sepiolite wool, 14-20% of low-calcium aluminate cement, 28-36% of inorganic binder, 2-5% of lithium bentonite, 4-8% of nano ceramic microspheres, 10-15% of pure water, 3-5% of polyvinyl alcohol and 7-10% of gelatin.
A preparation method of a heat preservation agent capable of prolonging the falling time comprises the following steps of firstly, selecting raw materials; step two, mixing base materials; step three, adding an auxiliary agent; step four, heating for use;
in the first step, the components are respectively in the following proportions: selecting 18% of sepiolite wool, 16% of low-calcium aluminate cement, 30% of inorganic adhesive, 4% of lithium bentonite, 6% of nano ceramic microspheres, 13% of pure water, 4% of polyvinyl alcohol and 9% of gelatin;
in the second step, the sepiolite wool and the low-calcium aluminate cement selected in the first step are directly put into the inorganic adhesive selected in the first step, the inorganic adhesive is one of a sodium silicate solution, a phosphoric acid solution and an aluminum sulfate solution, then the mixture is stirred and mixed by using a stirrer, the rotating speed of the stirrer is 80-120r/min, and the stirring time is 1 h;
in the third step, the lithium bentonite and the nano ceramic microspheres selected in the first step are placed into the mixture obtained in the second step, the lithium bentonite is prepared by modifying natural bentonite with lithium carbonate, and then the mixture is stirred and mixed by using a stirrer, wherein the rotating speed of the stirrer is 80-120r/min, and the stirring time is 0.2 h;
in the fourth step, the mixture obtained in the third step is heated in a waterproof way, the heating temperature in the waterproof way is 60 ℃, the maintaining time is 72 hours, then the pure water is taken to dissolve the polyvinyl alcohol and the gelatin, the mixture is poured into the mixture after the waterproof way is heated, and then the mixture is mixed and stirred for use, and the mixing and stirring time is 2 min.
Example 3:
a heat preservation agent capable of prolonging dropping time comprises sepiolite wool, low-calcium aluminate cement, an inorganic binder, lithium bentonite and nano ceramic microspheres, wherein the raw materials are respectively prepared from the following components in percentage by weight: 10-20% of sepiolite wool, 14-20% of low-calcium aluminate cement, 28-36% of inorganic binder, 2-5% of lithium bentonite, 4-8% of nano ceramic microspheres, 10-15% of pure water, 3-5% of polyvinyl alcohol and 7-10% of gelatin.
A preparation method of a heat preservation agent capable of prolonging the falling time comprises the following steps of firstly, selecting raw materials; step two, mixing base materials; step three, adding an auxiliary agent; step four, heating for use;
in the first step, the components are respectively in the following proportions: selecting 18% of sepiolite wool, 16% of low-calcium aluminate cement, 30% of inorganic adhesive, 4% of lithium bentonite, 6% of nano ceramic microspheres, 13% of pure water, 4% of polyvinyl alcohol and 9% of gelatin;
in the second step, the sepiolite wool and the low-calcium aluminate cement selected in the first step are directly put into the inorganic adhesive selected in the first step, the inorganic adhesive is one of a sodium silicate solution, a phosphoric acid solution and an aluminum sulfate solution, then the mixture is stirred and mixed by using a stirrer, the rotating speed of the stirrer is 80-120r/min, and the stirring time is 1 h;
in the third step, the lithium bentonite and the nano ceramic microspheres selected in the first step are placed into the mixture obtained in the second step, the lithium bentonite is prepared by modifying natural bentonite with lithium carbonate, and then the mixture is stirred and mixed by using a stirrer, wherein the rotating speed of the stirrer is 80-120r/min, and the stirring time is 0.2 h;
in the fourth step, the mixture obtained in the third step is heated in a waterproof way, the heating temperature in the waterproof way is 60 ℃, the maintaining time is 72 hours, then the pure water is taken to dissolve the polyvinyl alcohol and the gelatin, the mixture is poured into the mixture after the waterproof way is heated, and then the mixture is mixed and stirred for use, and the mixing and stirring time is 2 min.
The properties of the examples compared to conventional insulating agents are shown in the following table:
| high temperature resistance | Maintenance time | |
| Example 1 | Good effect | 230min |
| Example 2 | Good effect | 225min |
| Example 3 | Good effect | 235min |
| Traditional heat insulating agent | In general | 120min |
In conclusion, the formula materials of the heat preservation agent disclosed by the embodiment of the invention are more conventional and common, and the heat preservation agent has good heat preservation performance and simultaneously improves the adhesion time of the heat preservation agent on a mold.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A heat insulating agent capable of prolonging the falling time comprises sepiolite wool, low-calcium aluminate cement, an inorganic adhesive, lithium bentonite and nano ceramic microspheres, and is characterized in that: the raw materials are respectively prepared by the following components in percentage by weight: 10-20% of sepiolite wool, 14-20% of low-calcium aluminate cement, 28-36% of inorganic binder, 2-5% of lithium bentonite, 4-8% of nano ceramic microspheres, 10-15% of pure water, 3-5% of polyvinyl alcohol and 7-10% of gelatin.
2. A preparation method of a heat preservation agent capable of prolonging the falling time comprises the following steps of firstly, selecting raw materials; step two, mixing base materials; step three, adding an auxiliary agent; step four, heating for use; the method is characterized in that:
in the first step, the components are respectively in the following proportions: 10-20% of sepiolite wool, 14-20% of low-calcium aluminate cement, 28-36% of inorganic binder, 2-5% of lithium bentonite, 4-8% of nano ceramic microspheres, 10-15% of pure water, 3-5% of polyvinyl alcohol and 7-10% of gelatin;
in the second step, the sepiolite wool and the low-calcium aluminate cement selected in the first step are directly put into the inorganic adhesive selected in the first step, and then a stirrer is used for stirring and mixing the mixture;
in the third step, the lithium bentonite and the nano ceramic microspheres selected in the first step are put into the mixture obtained in the second step, and then a stirrer is used for stirring and mixing the mixture;
in the fourth step, the mixture obtained in the third step is heated in a waterproof way, then pure water is taken to dissolve polyvinyl alcohol and gelatin, and then the mixture is poured into the mixture heated in the waterproof way, and then the mixture is mixed and stirred for use.
3. The heat-insulating agent capable of prolonging the falling time according to claim 1, wherein: the inorganic adhesive is one of sodium silicate solution, phosphoric acid solution and aluminum sulfate solution.
4. The heat-insulating agent capable of prolonging the falling time according to claim 1, wherein: the lithium bentonite is prepared by modifying natural bentonite with lithium carbonate.
5. The method for preparing the heat-insulating agent capable of prolonging the falling time according to claim 2, wherein the method comprises the following steps: the rotating speed of the stirrer used in the second step is 80-120r/min, and the stirring time is 1 h.
6. The method for preparing the heat-insulating agent capable of prolonging the falling time according to claim 2, wherein the method comprises the following steps: the rotating speed of the stirrer used in the third step is 80-120r/min, and the stirring time is 0.2 h.
7. The method for preparing the heat-insulating agent capable of prolonging the falling time according to claim 2, wherein the method comprises the following steps: in the fourth step, the heating temperature in a water-proof way is 60 ℃, and the maintaining time is 72 h.
8. The method for preparing the heat-insulating agent capable of prolonging the falling time according to claim 2, wherein the method comprises the following steps: and in the fourth step, the mixing and stirring time is 2 min.
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| CN201911273986.9A CN111018454A (en) | 2019-12-12 | 2019-12-12 | Heat preservation agent capable of prolonging dropping time and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1108630A (en) * | 1994-03-18 | 1995-09-20 | 王旭 | High-temp. heat-insulated material |
| EP2647610A2 (en) * | 2012-04-06 | 2013-10-09 | Nichiha Corporation | Inorganic material board |
| US20130338270A1 (en) * | 1997-08-21 | 2013-12-19 | United States Gypsum Company | Gypsum-containing product |
| CN107235656A (en) * | 2017-07-04 | 2017-10-10 | 合肥择浚电气设备有限公司 | A kind of heat-insulating heat-preserving material for building and preparation method thereof |
-
2019
- 2019-12-12 CN CN201911273986.9A patent/CN111018454A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1108630A (en) * | 1994-03-18 | 1995-09-20 | 王旭 | High-temp. heat-insulated material |
| US20130338270A1 (en) * | 1997-08-21 | 2013-12-19 | United States Gypsum Company | Gypsum-containing product |
| EP2647610A2 (en) * | 2012-04-06 | 2013-10-09 | Nichiha Corporation | Inorganic material board |
| CN107235656A (en) * | 2017-07-04 | 2017-10-10 | 合肥择浚电气设备有限公司 | A kind of heat-insulating heat-preserving material for building and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 夏文干: "《胶接手册》", 28 February 1989 * |
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