CN112958745A - Preparation method of modified sodium silicate sand in cast iron application - Google Patents
Preparation method of modified sodium silicate sand in cast iron application Download PDFInfo
- Publication number
- CN112958745A CN112958745A CN202110223665.9A CN202110223665A CN112958745A CN 112958745 A CN112958745 A CN 112958745A CN 202110223665 A CN202110223665 A CN 202110223665A CN 112958745 A CN112958745 A CN 112958745A
- Authority
- CN
- China
- Prior art keywords
- parts
- sodium silicate
- sand
- ingredient
- modified
- 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.)
- Pending
Links
Images
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
-
- 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 a preparation method of modified sodium silicate sand in cast iron application, which is prepared from the following raw materials in parts by mass: 10-15 parts of sodium silicate, 10-28 parts of ingredient A, 5-13 parts of quartz sand, 8-14 parts of silicic acid gel, 7-15 parts of modified acrylic resin, 5-8 parts of ingredient B8, 5-8 parts of steel fiber and ingredient C5-14 parts; the method can ensure that the connection between materials is tighter, can meet the requirements of the improvement and the use of the technology, and improves the fluidity and the air permeability of the modified water glass in the casting process.
Description
Technical Field
The invention relates to the field of application of sodium silicate sand in cast iron, in particular to a preparation method of modified sodium silicate sand in cast iron application.
Background
Sodium acid is the most valuable filler in the soap industry, and the sodium silicate is added into the laundry soap to buffer the alkalinity of the laundry soap, reduce the loss of the laundry soap in water, enhance the washing capacity and prevent the soap from rancidity; the sodium silicate plays the roles of washing aid, corrosion prevention and foam stabilization in the synthetic detergent; can be used as filler for papermaking; for manufacturing silica gel and silica gel; the product can be used as a binder in the foundry industry, and can be used for bonding sand and clay to make various casting molds and cores required by people.
The modified water glass plays a crucial role in the process of casting iron, and although the performance of the existing modified water glass in the application of casting iron can ensure that the connectivity between materials is tighter in the casting process, the defects of poor fluidity and air permeability in the casting process of the existing modified water glass become more and more obvious along with the improvement of the technology and the use requirement.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a preparation method of modified sodium silicate sand in cast iron application, so as to overcome the technical problems in the prior related art.
Therefore, the invention adopts the following specific technical scheme:
according to one aspect of the present invention, there is provided a modified sodium silicate-bonded sand.
The modified sodium silicate-bonded sand is prepared from the following raw materials in parts by mass:
10-15 parts of sodium silicate, 10-28 parts of ingredient A, 5-13 parts of quartz sand, 8-14 parts of silicic acid gel, 7-15 parts of modified acrylic resin, 5-8 parts of ingredient B8, 5-8 parts of steel fiber and ingredient C5-14 parts.
Wherein the ingredient A comprises the following raw material components: 5-12 parts of nano mullite powder and 5-16 parts of straw powder.
Wherein the ingredient B comprises the following raw material components: 2-4 parts of stone charcoal fiber, 3-5 parts of nylon fiber and 3-9 parts of copper chloride.
Wherein the ingredient C comprises the following raw material components: 4-10 parts of pearl sand and 1-3 parts of foam glass powder.
According to another aspect of the present invention, there is provided a method of preparing modified sodium silicate-bonded sand for cast iron applications.
The preparation method of the modified sodium silicate-bonded sand comprises the following steps:
s101, weighing sodium silicate, a mixture A, quartz sand, silicic acid gel, modified acrylic resin, a mixture B, steel fibers and a mixture C which are required by the modified sodium silicate sand according to the mass parts;
s102, respectively sieving the quartz sand and the nano mullite powder which are weighed;
s103, sequentially putting the weighed stone charcoal fiber, nylon fiber and copper chloride into a stirring device prepared in advance for stirring to obtain a corrosion-resistant mixture;
s104, preheating a reaction kettle prepared in advance, and preserving heat;
s105, sequentially putting the weighed pearlife, foam glass powder, sodium silicate, straw powder, steel fiber, sieved quartz sand, nano mullite powder and corrosion-resistant mixture into the preheated and heat-insulated reaction kettle for mixing to obtain a mixture;
s106, putting the weighed silicic acid gel into the reaction kettle at a constant speed, and stirring to obtain formed sodium silicate sand;
s107, sieving the formed sodium silicate sand to obtain the finished product sodium silicate sand.
Further, in the step S102, the mesh diameter of the screen is 40 to 100 meshes.
Further, in the step S104, the preheating temperature of the reaction kettle is 90 to 150 ℃.
Further, in step S104, the heat retention time is 20 minutes.
Further, in the step S105, the mixing time is 1.5 to 3 hours.
Further, in the above step S105, the modulus M of sodium silicate is 3.26.
The invention has the beneficial effects that: according to the invention, by adding materials such as nano mullite powder, nylon fiber, copper chloride, charcoal fiber and the like, the modified water glass is more compact in connectivity in cast iron application, the requirements of the improvement and use of the technology can be met, and the fluidity and air permeability of the modified water glass in the casting process are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a flow chart of a method for preparing modified sodium silicate-bonded sand according to an embodiment of the invention.
Detailed Description
For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the invention, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.
According to an embodiment of the present invention, there is provided a modified sodium silicate-bonded sand.
The modified sodium silicate-bonded sand is prepared from the following raw materials in parts by mass:
10-15 parts of sodium silicate, 10-28 parts of ingredient A, 5-13 parts of quartz sand, 8-14 parts of silicic acid gel, 7-15 parts of modified acrylic resin, 5-8 parts of ingredient B8, 5-8 parts of steel fiber and ingredient C5-14 parts.
Wherein the ingredient A comprises the following raw material components: 5-12 parts of nano mullite powder and 5-16 parts of straw powder.
Wherein the ingredient B comprises the following raw material components: 2-4 parts of stone charcoal fiber, 3-5 parts of nylon fiber and 3-9 parts of copper chloride.
Wherein the ingredient C comprises the following raw material components: 4-10 parts of pearl sand and 1-3 parts of foam glass powder.
In order to clearly understand the technical solutions of the present invention, the following detailed descriptions of the technical solutions of the present invention are provided by specific examples.
Example one
The modified sodium silicate-bonded sand is prepared from the following raw materials in parts by mass:
10g of sodium silicate, 10g of ingredient A10g, 5g of quartz sand, 8g of silicic acid gel, 7g of modified acrylic resin, 8g of ingredient B8g, 5g of steel fiber and ingredient C5 g.
Wherein the ingredient A comprises the following raw material components: 5g of nano mullite powder and 5g of straw powder.
Wherein the ingredient B comprises the following raw material components: 2g of stone charcoal fiber, 3g of nylon fiber and 3g of copper chloride.
Wherein the ingredient C comprises the following raw material components: 4g of pearl sand and 1g of foam glass powder.
The preparation of the modified sodium silicate-bonded sand in cast iron application comprises the following steps:
s101, weighing 10g of sodium silicate, 10g of ingredient A10g, 5g of quartz sand, 8g of silicic acid gel, 7g of modified acrylic resin, ingredient B8g, 5g of steel fiber and ingredient C5g which are required by the modified sodium silicate sand according to the mass parts;
s102, sieving 5g of the quartz sand and 5g of the nano mullite powder which are weighed respectively;
s103, sequentially putting 2g of the weighed stone charcoal fiber, 3g of the weighed nylon fiber and 3g of the weighed copper chloride into a stirring device prepared in advance for stirring to obtain a corrosion-resistant mixture;
s104, preheating a reaction kettle prepared in advance, and preserving heat;
s105, sequentially putting 4g of weighed pearlife, 1g of foam glass powder, 10g of sodium silicate, 5g of straw powder, 5g of steel fibers, 5g of sieved quartz sand, 5g of nano mullite powder and a corrosion-resistant mixture into the preheated and heat-insulated reaction kettle for mixing to obtain a mixture;
s106, putting 8g of the weighed silicic acid gel into the reaction kettle at a constant speed, and stirring to obtain formed sodium silicate sand;
s107, sieving the formed sodium silicate sand to obtain the finished product sodium silicate sand.
Example two
The modified sodium silicate-bonded sand is prepared from the following raw materials in parts by mass:
12.5g of sodium silicate, a mixture A19g, 9g of quartz sand, 11g of silicic acid gel, 11g of modified acrylic resin, a mixture B13g, 6.5g of steel fibers and a mixture C9.5g.
Wherein the ingredient A comprises the following raw material components: 8.5g of nano mullite powder and 10.5g of straw powder.
Wherein the ingredient B comprises the following raw material components: 3g of stone charcoal fiber, 4g of nylon fiber and 6g of copper chloride.
Wherein the ingredient C comprises the following raw material components: 3g of pearl sand and 2g of foam glass powder.
The preparation of the modified sodium silicate-bonded sand in cast iron application comprises the following steps:
s101, weighing 12.5g of sodium silicate, a mixture A19g, 9g of quartz sand, 11g of silicic acid gel, 11g of modified acrylic resin, a mixture B13g, 6.5g of steel fibers and a mixture C9.5g which are required by the modified sodium silicate sand according to the mass parts;
s102, sieving 9g of the quartz sand and 8.5g of the nano mullite powder which are weighed respectively;
s103, sequentially putting 3g of the weighed stone charcoal fiber, 4g of the weighed nylon fiber and 6g of the weighed copper chloride into a stirring device prepared in advance for stirring to obtain a corrosion-resistant mixture;
s104, preheating a reaction kettle prepared in advance, and preserving heat;
s105, sequentially putting 3g of weighed pearlife, 2g of foam glass powder, 12.5g of sodium silicate, 10.5g of straw powder, 6.5g of steel fibers, 3g of sieved quartz sand, 8.5g of nano mullite powder and a corrosion-resistant mixture into the preheated and heat-insulated reaction kettle for mixing to obtain a mixture;
s106, putting 11g of the weighed silicic acid gel into the reaction kettle at a constant speed, and stirring to obtain formed sodium silicate sand;
s107, sieving the formed sodium silicate sand to obtain the finished product sodium silicate sand.
EXAMPLE III
The modified sodium silicate-bonded sand is prepared from the following raw materials in parts by mass:
15g of sodium silicate, a mixture A28g, 13g of quartz sand, 14g of silicic acid gel, 15g of modified acrylic resin, a mixture B18g, 8g of steel fibers and a mixture C14 g.
Wherein the ingredient A comprises the following raw material components: 12g of nano mullite powder and 16g of straw powder.
Wherein the ingredient B comprises the following raw material components: 4g of charcoal fiber, 5g of nylon fiber and 9g of copper chloride.
Wherein the ingredient C comprises the following raw material components: 10g of pearl sand and 3g of foam glass powder.
The preparation of the modified sodium silicate-bonded sand in cast iron application comprises the following steps:
s101, weighing 15g of sodium silicate, a mixture A28g, 13g of quartz sand, 14g of silicic acid gel, 15g of modified acrylic resin, a mixture B18g, 8g of steel fibers and a mixture C14g, which are required by the modified sodium silicate sand;
s102, sieving 13g of the quartz sand and 12g of the nano mullite powder which are weighed respectively;
s103, sequentially putting 4g of the weighed stone charcoal fiber, 5g of the weighed nylon fiber and 9g of the weighed copper chloride into a stirring device prepared in advance for stirring to obtain a corrosion-resistant mixture;
s104, preheating a reaction kettle prepared in advance, and preserving heat;
s105, sequentially putting 10g of weighed pearlife, 3g of foam glass powder, 15g of sodium silicate, 16g of straw powder, 8g of steel fibers, 10g of sieved quartz sand, 12g of nano mullite powder and a corrosion-resistant mixture into the preheated and heat-insulated reaction kettle for mixing to obtain a mixture;
s106, putting the weighed silicic acid gel into the reaction kettle at a constant speed, and stirring to obtain formed sodium silicate sand;
s107, sieving the formed sodium silicate sand to obtain the finished product sodium silicate sand.
According to an embodiment of the invention, there is also provided a method of preparing modified sodium silicate-bonded sand in cast iron applications.
As shown in FIG. 1, in the actual production process, the preparation of the modified sodium silicate-bonded sand comprises the following steps:
step S101, weighing sodium silicate, a mixture A, quartz sand, silicic acid gel, modified acrylic resin, a mixture B, steel fibers and a mixture C which are required by the modified sodium silicate sand according to the mass parts;
step S102, sieving the quartz sand and the nano mullite powder which are weighed respectively;
step S103, putting the weighed stone charcoal fiber, nylon fiber and copper chloride into a stirring device prepared in advance in sequence for stirring to obtain a corrosion-resistant mixture;
step S104, preheating a reaction kettle prepared in advance, and preserving heat;
step S105, sequentially putting the weighed pearlife, foam glass powder, sodium silicate, straw powder, steel fiber, sieved quartz sand, nano mullite powder and corrosion-resistant mixture into the preheated and heat-insulated reaction kettle for mixing to obtain a mixture;
step S106, putting the weighed silicic acid gel into the reaction kettle at a constant speed, and stirring to obtain formed sodium silicate sand;
and S107, sieving the formed sodium silicate sand to obtain the finished product sodium silicate sand.
In one example, in the step S102, the mesh diameter of the screen is 40 to 100 meshes.
In one example, in the step S104, the preheating temperature of the reaction kettle is 90 ℃ to 150 ℃.
In one example, in step S104, the incubation time is 20 minutes.
In one example, in the step S105, the mixing time is 1.5 to 3 hours.
In one example, in the above step S105, the modulus M of sodium silicate is 3.26.
In conclusion, the modified water glass is more compact in connectivity in cast iron application by adding materials such as nano mullite powder, nylon fibers, copper chloride and charcoal fibers, can meet the requirements of improvement and use of technology, and improves the flowability and air permeability of the modified water glass in the casting process.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The modified sodium silicate-bonded sand is characterized by being prepared from the following raw materials in parts by mass:
10-15 parts of sodium silicate, 10-28 parts of ingredient A, 5-13 parts of quartz sand, 8-14 parts of silicic acid gel, 7-15 parts of modified acrylic resin, 5-8 parts of ingredient B8, 5-8 parts of steel fiber and ingredient C5-14 parts.
2. The modified sodium silicate-bonded sand according to claim 1, wherein the ingredient A comprises the following raw material components: 5-12 parts of nano mullite powder and 5-16 parts of straw powder.
3. The modified sodium silicate-bonded sand according to claim 2, wherein the ingredient B comprises the following raw material components: 2-4 parts of stone charcoal fiber, 3-5 parts of nylon fiber and 3-9 parts of copper chloride.
4. The modified sodium silicate-bonded sand according to claim 3, wherein the ingredient C comprises the following raw material components: 4-10 parts of pearl sand and 1-3 parts of foam glass powder.
5. A method for the preparation of modified water glass sand for cast iron applications, characterized in that it is used for the preparation of modified water glass sand according to claim 4, comprising the following steps:
s101, weighing sodium silicate, a mixture A, quartz sand, silicic acid gel, modified acrylic resin, a mixture B, steel fibers and a mixture C which are required by the modified sodium silicate sand according to the mass parts;
s102, respectively sieving the quartz sand and the nano mullite powder which are weighed;
s103, sequentially putting the weighed stone charcoal fiber, nylon fiber and copper chloride into a stirring device prepared in advance for stirring to obtain a corrosion-resistant mixture;
s104, preheating a reaction kettle prepared in advance, and preserving heat;
s105, sequentially putting the weighed pearlife, foam glass powder, sodium silicate, straw powder, steel fiber, sieved quartz sand, nano mullite powder and corrosion-resistant mixture into the preheated and heat-insulated reaction kettle for mixing to obtain a mixture;
s106, putting the weighed silicic acid gel into the reaction kettle at a constant speed, and stirring to obtain formed sodium silicate sand; sieving the formed sodium silicate sand to obtain finished sodium silicate sand
S107, sieving the formed sodium silicate sand to obtain the finished product sodium silicate sand.
6. The method of claim 5, wherein in step S102, the mesh diameter of the screen is 40-100 mesh.
7. The method of claim 5, wherein the preheating temperature of the reaction vessel in step S104 is 90-150 ℃.
8. The method of claim 5, wherein the holding time in step S104 is 20 minutes.
9. The method of claim 5, wherein the mixing time in step S105 is 1.5-3 hours.
10. The method of claim 5, wherein in step S105, the modulus M of sodium silicate is 3.26.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110223665.9A CN112958745A (en) | 2021-03-01 | 2021-03-01 | Preparation method of modified sodium silicate sand in cast iron application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110223665.9A CN112958745A (en) | 2021-03-01 | 2021-03-01 | Preparation method of modified sodium silicate sand in cast iron application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112958745A true CN112958745A (en) | 2021-06-15 |
Family
ID=76276020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110223665.9A Pending CN112958745A (en) | 2021-03-01 | 2021-03-01 | Preparation method of modified sodium silicate sand in cast iron application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112958745A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1316666A (en) * | 1969-05-27 | 1973-05-09 | Mitsubishi Heavy Ind Ltd | Treatment of refractory particles |
| CN102728780A (en) * | 2012-06-08 | 2012-10-17 | 繁昌县琦祥铸造厂 | Water glass molding sand and producing method thereof |
| CN102814460A (en) * | 2012-08-20 | 2012-12-12 | 合肥江淮铸造有限责任公司 | Casting molding sand and preparation method thereof |
| CN104985105A (en) * | 2015-06-26 | 2015-10-21 | 瓮安县瑞丰贸易有限公司 | Novel water glass molding sand and preparation method thereof |
| 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 |
| CN107116182A (en) * | 2016-12-30 | 2017-09-01 | 宁夏共享能源有限公司 | Casting running gate system part and its forming method |
| CN109070190A (en) * | 2016-04-08 | 2018-12-21 | 胡坦斯·阿尔伯图斯化学厂有限公司 | Application of the closed pore microsphere being made of expanded perlite as the molding of filler manufacture foundary industry |
| CN109475927A (en) * | 2016-06-30 | 2019-03-15 | 胡坦斯·阿尔伯图斯化学厂有限公司 | The core-shell particles used as the filler for Riser material |
| CN110216238A (en) * | 2019-06-09 | 2019-09-10 | 吴江市金利达铸钢有限公司 | A kind of preparation method of casting water glass solution |
-
2021
- 2021-03-01 CN CN202110223665.9A patent/CN112958745A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1316666A (en) * | 1969-05-27 | 1973-05-09 | Mitsubishi Heavy Ind Ltd | Treatment of refractory particles |
| CN102728780A (en) * | 2012-06-08 | 2012-10-17 | 繁昌县琦祥铸造厂 | Water glass molding sand and producing method thereof |
| CN102814460A (en) * | 2012-08-20 | 2012-12-12 | 合肥江淮铸造有限责任公司 | Casting molding sand and preparation method thereof |
| CN104985105A (en) * | 2015-06-26 | 2015-10-21 | 瓮安县瑞丰贸易有限公司 | Novel water glass molding sand and preparation method thereof |
| 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 |
| CN109070190A (en) * | 2016-04-08 | 2018-12-21 | 胡坦斯·阿尔伯图斯化学厂有限公司 | Application of the closed pore microsphere being made of expanded perlite as the molding of filler manufacture foundary industry |
| US20190118244A1 (en) * | 2016-04-08 | 2019-04-25 | HÜTTENES-ALBERTUS Chemische Werke Gesellschaft mit beschränkter Haftung | Use of closed-pore microspheres of expanded pearlite as a filler for the production of mouldings for the foundry industry |
| CN109475927A (en) * | 2016-06-30 | 2019-03-15 | 胡坦斯·阿尔伯图斯化学厂有限公司 | The core-shell particles used as the filler for Riser material |
| CN107116182A (en) * | 2016-12-30 | 2017-09-01 | 宁夏共享能源有限公司 | Casting running gate system part and its forming method |
| CN110216238A (en) * | 2019-06-09 | 2019-09-10 | 吴江市金利达铸钢有限公司 | A kind of preparation method of casting water glass solution |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FI86541B (en) | RAOMATERIALBRIKETT FOER MINERALULLSTILLVERKNING OCH FOERFARANDE FOER DESS FRAMSTAELLNING. | |
| US4410365A (en) | Binder | |
| CN103936371B (en) | A kind of flyash brick not easy to crack containing ceramic fiber | |
| JPS61197454A (en) | Manufacture of lightweight calcium silicate product | |
| CN112958745A (en) | Preparation method of modified sodium silicate sand in cast iron application | |
| CA1103884A (en) | Refractory exothermic heat insulating articles | |
| CN108328990A (en) | A kind of concrete and preparation method thereof | |
| US3597249A (en) | Method of producing composites of inorganic binders and fibers from aqueous slurries | |
| CN101116893A (en) | Accurate casting powder | |
| CN1025784C (en) | Magnesium thermal insulation board and manufacturing method | |
| KR20160145571A (en) | Composite comprising a mineral wool comprising a sugar | |
| US4536216A (en) | Cement for the manufacture of cores and moulds and method for preparing same | |
| KR930012259B1 (en) | Method of manufacturing casting sand | |
| JP2003292383A (en) | Manufacturing method for monolithic refractory | |
| US2675323A (en) | Refractory materials | |
| CN106518113A (en) | Continuous casting tundish paint with good purification function and preparation method thereof | |
| CN102838359B (en) | Raw materials for tundish current regulator and manufacture method | |
| SU1191166A1 (en) | Sand for manufacturing cores and moulds by co2-process | |
| SU1289581A1 (en) | Binder for making moulds and cores | |
| RU1770021C (en) | Composition for ceramic form moulding | |
| SU1261739A1 (en) | Sand for making moulds and cores in co@ process | |
| SU863141A1 (en) | Suspension for producing casting ceramic moulds made with use of investment patterns | |
| SU1514456A1 (en) | Mixture for making moulds and cores | |
| CN1167020A (en) | Method for making thermal-insulating riser cover used in aluminium alloy casting | |
| SU1215824A1 (en) | Sand for making moulds and cores by c0 -process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |