CN103949593A - Novel composite riser heating agent and preparation method thereof - Google Patents
Novel composite riser heating agent and preparation method thereof Download PDFInfo
- Publication number
- CN103949593A CN103949593A CN201410162433.7A CN201410162433A CN103949593A CN 103949593 A CN103949593 A CN 103949593A CN 201410162433 A CN201410162433 A CN 201410162433A CN 103949593 A CN103949593 A CN 103949593A
- Authority
- CN
- China
- Prior art keywords
- parts
- powder
- stir
- powders
- composite riser
- 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.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 238000010438 heat treatment Methods 0.000 title claims abstract description 12
- 238000002360 preparation method Methods 0.000 title claims description 6
- 239000000843 powder Substances 0.000 claims abstract description 39
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 24
- 238000003756 stirring Methods 0.000 claims abstract description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 20
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 19
- 239000010881 fly ash Substances 0.000 claims abstract description 19
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 16
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 10
- OSMSIOKMMFKNIL-UHFFFAOYSA-N calcium;silicon Chemical compound [Ca]=[Si] OSMSIOKMMFKNIL-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000010436 fluorite Substances 0.000 claims abstract description 10
- 239000002893 slag Substances 0.000 claims abstract description 10
- 235000010344 sodium nitrate Nutrition 0.000 claims abstract description 10
- 239000004317 sodium nitrate Substances 0.000 claims abstract description 10
- 239000008367 deionised water Substances 0.000 claims abstract description 8
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 238000007654 immersion Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 230000007935 neutral effect Effects 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000004411 aluminium Substances 0.000 claims description 18
- 150000001875 compounds Chemical class 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 13
- 239000010883 coal ash Substances 0.000 claims description 11
- 238000000465 moulding Methods 0.000 claims description 10
- 238000012856 packing Methods 0.000 claims description 10
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 9
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 7
- 238000001354 calcination Methods 0.000 claims description 7
- 238000002386 leaching Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- 230000000630 rising effect Effects 0.000 claims description 7
- 239000003245 coal Substances 0.000 claims description 5
- 235000013980 iron oxide Nutrition 0.000 claims description 5
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 claims description 5
- 238000012986 modification Methods 0.000 claims description 5
- 230000004048 modification Effects 0.000 claims description 5
- 229940067573 brown iron oxide Drugs 0.000 claims description 4
- 238000005266 casting Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 238000004321 preservation Methods 0.000 abstract description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 abstract 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 238000002156 mixing Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Abstract
The invention discloses a novel composite riser heating agent. The novel composite riser heating agent is prepared from the following raw material components in parts by weight: 25-35 parts of aluminum powder, 5-15 parts of magnesium powder, 3-7 parts of fluorite powder, 3-7 parts of silicon carbide powder, 5-10 parts of iron oxide powder, 3-7 parts of silicon calcium powder, 12-16 parts of aluminum slag, 8-12 parts of modified fly ash, 6-9 parts of sodium nitrate and 6-9 parts of sodium fluosilicate, wherein the modified fly ash is obtained by sequentially putting burnt fly ash into a 20-25 percent sulfuric acid solution and a 16-24 percent sodium hydroxide solution, stirring for 20-22h, washing the fly ash filtered from acid-base immersion liquid by using deionized water to be neutral, and filtering and drying the fly ash finally. The heating agent prepared from a raw material formula by using a method is good in heating effect and good in heat preservation effect, meets requirements for feeding of a casting, and guarantees the quality conformance of the casting.
Description
Technical field
The present invention relates to metallurgical stone technical field, relate in particular to a kind of NEW TYPE OF COMPOSITE riser compound and preparation method thereof.
Background technology
Rising head is for avoiding foundry goods to occur that defect is attached to the supplementary part of foundry goods top or side, major function is exhaust, deslagging, molten steel feeding, for the casting quality that makes to produce qualified, necessarily require heating, the heat insulation effect of covering flux good, therefore heat preservation rising head is one of effective ways of controlling steel-casting quality preferably.
Heat preservation rising head is comprised of various materials such as exothermic mixture, heat preserving agent and binding agents, in casting process, owing to emitting gate material generation chemical reaction, make molten metal temperature increase wherein, thereby extend the setting time of molten metal in rising head, the anti-casting mold that flows back to, realizes feeding.But along with the development of foundry engieering and the raising day by day that casting quality is required, due to the sand mold rising head of conventional formulation technique exist heating not enough, be incubated bad and act on the shortcomings such as single, be difficult to meet the feeding requirement of foundry goods, therefore, researching and developing new exothermic mixture formula and corresponding preparation method more and more comes into one's own.
Summary of the invention
The object of the invention is to the defect for above-mentioned prior art, a kind of NEW TYPE OF COMPOSITE riser compound and preparation method thereof is provided, prepared exothermic mixture heating effect, high insulating effect, meet the feeding requirement of foundry goods, for the qualified of casting quality provides safeguard.
To achieve these goals, technical scheme of the present invention is:
A NEW TYPE OF COMPOSITE riser compound, is comprised of the raw material components of following parts by weight:
Aluminium powder 25～35 magnesium powder 5～15
Fluorspar Powder 3～7 carborundum powders 3～7
Brown iron oxide 5～10 silicon calcium powders 3～7
Aluminium slag 12～16 modified coal ash 8～12
Sodium nitrate 6～9 prodans 6～9;
Described modified coal ash, be that the flyash after calcination is successively placed in to 20～25% sulfuric acid, 16～24% sodium hydroxide solutions successively, stir the flyash then leaching 20～22 hours from soda acid immersion liquid, with deionized water rinsing, to neutral, last filtration drying obtains after processing.
As the improvement to technique scheme, this NEW TYPE OF COMPOSITE riser compound, is comprised of the raw material components of following parts by weight:
Aluminium powder 30 magnesium powder 10
Fluorspar Powder 5 carborundum powders 5
Brown iron oxide 7 silicon calcium powders 5
Aluminium slag 14 modified coal ash 10
Sodium nitrate 7 prodans 7.
Preparing the method for this rising head composite heating agent carries out as follows:
1), produce modification fine coal class, flyash after calcination is first placed in to 20～25% sulfuric acid, stir 20～22 hours, leach, then be placed in 16～24% sodium hydroxide solutions, stir the flyash then leaching 20～22 hours from soda acid immersion liquid, with deionized water rinsing, to neutral, last filtration drying obtains after processing;
2), choose by weight 25～35 aluminium powder, 5～15 parts of magnesium powder, 3～7 parts of Fluorspar Powders, 3～7 parts of carborundum powders, 5～10 parts of brown iron oxides, 3～7 parts of silicon calcium powders, 12～16 parts of aluminium slags, 8～12 parts of modified coal ash, 6～9 parts of sodium nitrate, 6～9 parts of prodans mix, be transported in planet kolleroang and stir 100～120 minutes, stir into compound, then sending into conveyer delivers in the spherical mould in packing machine and carries out high-pressure molding, the spheroid exothermic mixture of moulding is through forcing press ejection die, finally sending into conveyer is transported to packing machine and packs, be qualified products.
Compared with prior art, the invention has the beneficial effects as follows:
By composition of raw materials of the present invention and prepared exothermic mixture heating effect, the high insulating effect of method, meet the feeding requirement of foundry goods, for the qualified of casting quality provides safeguard.
The specific embodiment
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below in conjunction with specific embodiment, the present invention is further described, apparently, embodiment in the following describes is only part embodiment of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these embodiment other embodiment.
Embodiment 1:
Produce modification fine coal class, the flyash after calcination is first placed in to 20% sulfuric acid, stir 20 hours, leach, be then placed in 16% sodium hydroxide solution, stir 20 hours, then the flyash leaching from soda acid immersion liquid, with deionized water rinsing, to neutral, last filtration drying obtains after processing;
Choose by weight 25 aluminium powder, 5 parts of magnesium powder, 3 parts of Fluorspar Powders, 3 parts of carborundum powders, 5 parts of brown iron oxides, 3 parts of silicon calcium powders, 12 parts of aluminium slags, 8 parts of modified coal ash, 6 parts of sodium nitrate, 6 parts of prodans mixing, be transported in planet kolleroang and stir 100 minutes, stir into compound, then sending into conveyer delivers in the spherical mould in packing machine and carries out high-pressure molding, the spheroid exothermic mixture of moulding is through forcing press ejection die, finally send into conveyer and be transported to packing machine and pack, be qualified products.
Embodiment 2:
Produce modification fine coal class, the flyash after calcination is first placed in to 25% sulfuric acid, stir 22 hours, leach, be then placed in 24% sodium hydroxide solution, stir 22 hours, then the flyash leaching from soda acid immersion liquid, with deionized water rinsing, to neutral, last filtration drying obtains after processing;
Choose by weight 35 aluminium powder, 15 parts of magnesium powder, 7 parts of Fluorspar Powders, 7 parts of carborundum powders, 10 parts of brown iron oxides, 7 parts of silicon calcium powders, 16 parts of aluminium slags, 12 parts of modified coal ash, 9 parts of sodium nitrate, 9 parts of prodans mixing, be transported in planet kolleroang and stir 120 minutes, stir into compound, then sending into conveyer delivers in the spherical mould in packing machine and carries out high-pressure molding, the spheroid exothermic mixture of moulding is through forcing press ejection die, finally send into conveyer and be transported to packing machine and pack, be qualified products.
Embodiment 3:
Produce modification fine coal class, the flyash after calcination is first placed in to 23% sulfuric acid, stir 21 hours, leach, be then placed in 20% sodium hydroxide solution, stir 21 hours, then the flyash leaching from soda acid immersion liquid, with deionized water rinsing, to neutral, last filtration drying obtains after processing;
Choose by weight 30 parts of aluminium powders, 10 parts of magnesium powder, 5 parts of Fluorspar Powders, 5 parts of carborundum powders, 7 parts of brown iron oxides, 5 parts of silicon calcium powders, 14 parts of aluminium slags, 10 parts of modified coal ash, 7 parts of sodium nitrate, 7 parts of prodans mixing, be transported in planet kolleroang and stir 110 minutes, stir into compound, then sending into conveyer delivers in the spherical mould in packing machine and carries out high-pressure molding, the spheroid exothermic mixture of moulding is through forcing press ejection die, finally send into conveyer and be transported to packing machine and pack, be qualified products.
The above is only preferably several embodiments of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement, these improvement also should be considered as protection scope of the present invention.
Claims (3)
1. a NEW TYPE OF COMPOSITE riser compound, is characterized in that: this NEW TYPE OF COMPOSITE riser compound is comprised of the raw material components of following parts by weight:
Aluminium powder 25～35 magnesium powder 5～15
Fluorspar Powder 3～7 carborundum powders 3～7
Brown iron oxide 5～10 silicon calcium powders 3～7
Aluminium slag 12～16 modified coal ash 8～12
Sodium nitrate 6～9 prodans 6～9;
Described modified coal ash, be that the flyash after calcination is successively placed in to 20～25% sulfuric acid, 16～24% sodium hydroxide solutions successively, stir the flyash then leaching 20～22 hours from soda acid immersion liquid, with deionized water rinsing, to neutral, last filtration drying obtains after processing.
2. NEW TYPE OF COMPOSITE riser compound according to claim 1, is characterized in that: this NEW TYPE OF COMPOSITE riser compound, is comprised of the raw material components of following parts by weight:
Aluminium powder 30 magnesium powder 10
Fluorspar Powder 5 carborundum powders 5
Brown iron oxide 7 silicon calcium powders 5
Aluminium slag 14 modified coal ash 10
Sodium nitrate 7 prodans 7.
3. a preparation method who prepares NEW TYPE OF COMPOSITE riser compound described in claim 1, is characterized in that: the method for this rising head composite heating agent is carried out as follows:
1), produce modification fine coal class, flyash after calcination is first placed in to 20～25% sulfuric acid, stir 20～22 hours, leach, then be placed in 16～24% sodium hydroxide solutions, stir the flyash then leaching 20～22 hours from soda acid immersion liquid, with deionized water rinsing, to neutral, last filtration drying obtains after processing;
2), choose by weight 25～35 aluminium powder, 5～15 parts of magnesium powder, 3～7 parts of Fluorspar Powders, 3～7 parts of carborundum powders, 5～10 parts of brown iron oxides, 3～7 parts of silicon calcium powders, 12～16 parts of aluminium slags, 8～12 parts of modified coal ash, 6～9 parts of sodium nitrate, 6～9 parts of prodans mix, be transported in planet kolleroang and stir 100～120 minutes, stir into compound, then sending into conveyer delivers in the spherical mould in packing machine and carries out high-pressure molding, the spheroid exothermic mixture of moulding is through forcing press ejection die, finally sending into conveyer is transported to packing machine and packs, be qualified products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410162433.7A CN103949593B (en) | 2014-04-22 | 2014-04-22 | A kind of rising head composite heating agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410162433.7A CN103949593B (en) | 2014-04-22 | 2014-04-22 | A kind of rising head composite heating agent and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103949593A true CN103949593A (en) | 2014-07-30 |
| CN103949593B CN103949593B (en) | 2016-09-07 |
Family
ID=51327016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410162433.7A Active CN103949593B (en) | 2014-04-22 | 2014-04-22 | A kind of rising head composite heating agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103949593B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439198A (en) * | 2014-11-18 | 2015-03-25 | 重庆鑫泉机械有限公司 | Riser covering flux |
| CN105537524A (en) * | 2015-12-15 | 2016-05-04 | 李玲 | Preparation process of cast steel insulated feeder covering agent |
| CN106966846A (en) * | 2017-03-24 | 2017-07-21 | 王星河 | Composite heating agent for weathering steel |
| CN108453246A (en) * | 2018-05-15 | 2018-08-28 | 姜香 | A kind of cast steel insulated feeder coverture and preparation method thereof |
| CN108913895A (en) * | 2018-08-06 | 2018-11-30 | 邵珠航 | A kind of exothermic mixture of metal smelt and preparation method thereof |
| CN114346220A (en) * | 2021-12-17 | 2022-04-15 | 郑州煤机格林材料科技有限公司 | Riser exothermic agent and method for improving casting yield |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101642799A (en) * | 2009-08-19 | 2010-02-10 | 西峡县鑫龙保温材料有限公司 | Molded cap ball composite heating agent and production process thereof |
| CN102825224A (en) * | 2012-07-31 | 2012-12-19 | 马鞍山科润冶金材料有限公司 | Composite heat generating agent for weathering steel |
| JP2013226587A (en) * | 2012-04-26 | 2013-11-07 | Shinto Kogyo Kk | Exothermic shaped article |
| CN103551512A (en) * | 2013-11-15 | 2014-02-05 | 哈尔滨理工大学 | Exothermic insulating riser sleeve and preparation method thereof |
-
2014
- 2014-04-22 CN CN201410162433.7A patent/CN103949593B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101642799A (en) * | 2009-08-19 | 2010-02-10 | 西峡县鑫龙保温材料有限公司 | Molded cap ball composite heating agent and production process thereof |
| JP2013226587A (en) * | 2012-04-26 | 2013-11-07 | Shinto Kogyo Kk | Exothermic shaped article |
| CN102825224A (en) * | 2012-07-31 | 2012-12-19 | 马鞍山科润冶金材料有限公司 | Composite heat generating agent for weathering steel |
| CN103551512A (en) * | 2013-11-15 | 2014-02-05 | 哈尔滨理工大学 | Exothermic insulating riser sleeve and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439198A (en) * | 2014-11-18 | 2015-03-25 | 重庆鑫泉机械有限公司 | Riser covering flux |
| CN105537524A (en) * | 2015-12-15 | 2016-05-04 | 李玲 | Preparation process of cast steel insulated feeder covering agent |
| CN106966846A (en) * | 2017-03-24 | 2017-07-21 | 王星河 | Composite heating agent for weathering steel |
| CN108453246A (en) * | 2018-05-15 | 2018-08-28 | 姜香 | A kind of cast steel insulated feeder coverture and preparation method thereof |
| CN108913895A (en) * | 2018-08-06 | 2018-11-30 | 邵珠航 | A kind of exothermic mixture of metal smelt and preparation method thereof |
| CN114346220A (en) * | 2021-12-17 | 2022-04-15 | 郑州煤机格林材料科技有限公司 | Riser exothermic agent and method for improving casting yield |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103949593B (en) | 2016-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103949593A (en) | Novel composite riser heating agent and preparation method thereof | |
| CN103962509B (en) | A kind of heat preservation Riser material and preparation method thereof | |
| CN102653640B (en) | Magnesium olivine modified powder coating and preparation method thereof | |
| CN104117628A (en) | Graphite powder casting coating and preparation method thereof | |
| CN105734201B (en) | A kind of alfer, preparation method and the usage | |
| CN103693969B (en) | The preparation method of the toughness reinforcing dry materials of a kind of Environment-friendlyzirconium zirconium matter | |
| CN102351473B (en) | Preparation method of grating plate | |
| CN103572121A (en) | Production process for aluminum alloy slab ingot | |
| CN102756112A (en) | Composite slag remover for casting | |
| CN101623754B (en) | Preparation technology of nano-ceramic powder dispersing and strengthening cast alloy | |
| CN102775160A (en) | Slag stopping weir for tundish and preparation method | |
| CN101786891A (en) | Air-set mold bulk material for continuous casting tundish and preparation method thereof | |
| CN105693176B (en) | A kind of method that environmental protection brick is prepared based on blast furnace granulated slag | |
| CN102206087A (en) | Sliding plate working face fireproofing material composition using waste sliding plate material | |
| CN104308073B (en) | A kind of production method of binder for casting | |
| CN103509910B (en) | A kind of liquid steel refining fluxing agent and manufacture method thereof | |
| CN104668444A (en) | Burnt-on sand resistant additive for cast steel and preparation method thereof | |
| CN106311998A (en) | Preparation and application method of molten steel covering flux | |
| CN105481388A (en) | Environmentally-friendly dry working lining for tundish and preparation method of environmental-protection type dry working lining | |
| CN104370560B (en) | A kind of preparation method of basket pouring material | |
| CN110090918B (en) | Cast iron release agent and production process thereof | |
| CN102764851A (en) | Self-hardening core for precision casting and manufacturing method thereof | |
| CN103031410B (en) | Method for treating desulfuration residue by preparing efficient blocker with waste materials of steelmaking | |
| CN102002583B (en) | Palletizing method of iron ore powder | |
| CN105397029B (en) | A kind of model casting waterglass shell side method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 454191 Henan Province, Jiaozuo City Industrial Zone of Chunxiao Road North Applicant after: Jiaozuo dove new material Limited by Share Ltd Address before: 454000 Henan city of Jiaozuo Province West Industrial Zone in Chunxiao Street No. 100 Jiaozuo pigeon Germany new material Co. Ltd. Applicant before: JIAOZUO GEDE NEW MATERIALS CO., LTD. |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Composite riser heating agent and preparation method thereof Effective date of registration: 20190212 Granted publication date: 20160907 Pledgee: Jiaozuo CTS bank Limited by Share Ltd Pledgor: Jiaozuo dove new material Limited by Share Ltd Registration number: 2019410000002 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200106 Granted publication date: 20160907 Pledgee: Jiaozuo CTS bank Limited by Share Ltd Pledgor: Jiaozuo dove new material Limited by Share Ltd Registration number: 2019410000002 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Composite riser heating agent and preparation method thereof Effective date of registration: 20200106 Granted publication date: 20160907 Pledgee: Jiaozuo CTS bank Limited by Share Ltd Pledgor: Jiaozuo dove new material Limited by Share Ltd Registration number: Y2020980000027 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210208 Granted publication date: 20160907 Pledgee: Jiaozuo CTS bank Limited by Share Ltd. Pledgor: JIAOZUO GEDE NEW MATERIALS Co.,Ltd. Registration number: Y2020980000027 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |