CN111318677B - Stainless steel mold casting covering slag - Google Patents
Stainless steel mold casting covering slag Download PDFInfo
- Publication number
- CN111318677B CN111318677B CN201811521731.5A CN201811521731A CN111318677B CN 111318677 B CN111318677 B CN 111318677B CN 201811521731 A CN201811521731 A CN 201811521731A CN 111318677 B CN111318677 B CN 111318677B
- Authority
- CN
- China
- Prior art keywords
- parts
- fly ash
- stainless steel
- oxide
- slag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002893 slag Substances 0.000 title claims abstract description 44
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 22
- 239000010935 stainless steel Substances 0.000 title claims abstract description 22
- 238000005266 casting Methods 0.000 title claims description 10
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 55
- 239000010881 fly ash Substances 0.000 claims abstract description 55
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000002994 raw material Substances 0.000 claims abstract description 24
- 239000000919 ceramic Substances 0.000 claims abstract description 23
- 239000010451 perlite Substances 0.000 claims abstract description 23
- 235000019362 perlite Nutrition 0.000 claims abstract description 23
- 239000004005 microsphere Substances 0.000 claims abstract description 22
- 229910021538 borax Inorganic materials 0.000 claims abstract description 21
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 21
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 21
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 21
- 235000011116 calcium hydroxide Nutrition 0.000 claims abstract description 21
- 239000011521 glass Substances 0.000 claims abstract description 21
- 239000004328 sodium tetraborate Substances 0.000 claims abstract description 21
- 235000010339 sodium tetraborate Nutrition 0.000 claims abstract description 21
- 238000004512 die casting Methods 0.000 claims abstract description 15
- -1 argil Substances 0.000 claims abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- 239000010439 graphite Substances 0.000 claims description 14
- 229910002804 graphite Inorganic materials 0.000 claims description 14
- 239000006004 Quartz sand Substances 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 12
- 239000000292 calcium oxide Substances 0.000 claims description 12
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 12
- 239000000395 magnesium oxide Substances 0.000 claims description 12
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 12
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 12
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 8
- 239000011325 microbead Substances 0.000 claims 1
- 150000004760 silicates Chemical class 0.000 claims 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 abstract description 10
- 229910000831 Steel Inorganic materials 0.000 abstract description 8
- 239000010959 steel Substances 0.000 abstract description 8
- 238000004321 preservation Methods 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 230000001681 protective effect Effects 0.000 abstract description 3
- 238000005272 metallurgy Methods 0.000 abstract description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 11
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 11
- 239000007788 liquid Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 235000013305 food Nutrition 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000003223 protective agent Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/18—Measures for using chemical processes for influencing the surface composition of castings, e.g. for increasing resistance to acid attack
Abstract
The invention provides stainless steel die casting covering slag, and belongs to the technical field of metallurgy. The stainless steel die-casting covering slag is prepared from the following raw materials: fly ash, argil, borax, glass slag, hollow ceramic microspheres, pitchstone, perlite, basalt, iron oxide, aluminum oxide and hydrated lime. The stainless steel die casting protective slag prepared by the invention does not need to add a heating agent and a heat preservation agent, can improve the surface quality of steel ingots and the feeding quality of ingot heads, thereby reducing the head cutting rate and improving the yield.
Description
Technical Field
The invention relates to the technical field of metallurgy, in particular to stainless steel die-casting covering slag.
Background
Because the stainless steel contains chromium, titanium and other easily-oxidized elements, the molten stainless steel has the characteristics of easy oxidation, high viscosity, poor fluidity, low melting point and the like, and is the most difficult steel to cast in the die casting, the heating agent and the heat insulating agent are required to be separately added when the common stainless steel die casting covering slag is used at present, so that the processing technology is complex, the cost is high, the practical performance of the covering slag is single, and if the covering slag, the heating agent and the heat insulating agent are not uniformly mixed, the protection effect is easily caused, and the use effect is poor.
Disclosure of Invention
In order to solve the technical problems, the invention provides the stainless steel die-casting covering slag, which is prepared by taking fly ash as a main raw material, enabling the fly ash to be in a spherical shape and a spongy shape, shrinking into liquid drops under the action of surface tension after melting, cooling to form beads, and improving the heat insulation performance and the spreadability of the covering slag, wherein the fly ash is good in fluidity and provided with a plurality of air holes inside, and meanwhile, the stainless steel die-casting covering slag is beneficial to changing factory wastes into valuables and protecting the environment.
The invention provides stainless steel die casting covering slag which is prepared from the following raw materials: fly ash, argil, borax, glass slag, hollow ceramic microspheres, pitchstone, perlite, basalt, iron oxide, aluminum oxide and hydrated lime.
As a further improvement of the invention, the health-care food is prepared from the following raw materials in parts by weight: 60-80 parts of fly ash, 12-20 parts of argil, 15-25 parts of borax, 10-16 parts of glass slag, 5-13 parts of hollow ceramic microspheres, 12-18 parts of pitchstone, 10-16 parts of perlite, 7-14 parts of basalt, 5-12 parts of iron oxide, 10-15 parts of aluminum oxide and 5-10 parts of slaked lime.
As a further improvement of the invention, the health-care food is prepared from the following raw materials in parts by weight: 65-75 parts of fly ash, 15-18 parts of argil, 17-23 parts of borax, 12-15 parts of glass slag, 7-11 parts of hollow ceramic microspheres, 13-16 parts of pitchstone, 12-15 parts of perlite, 8-12 parts of basalt, 6-10 parts of iron oxide, 11-14 parts of aluminum oxide and 6-8 parts of slaked lime.
As a further improvement of the invention, the health-care food is prepared from the following raw materials in parts by weight: 70 parts of fly ash, 16 parts of argil, 20 parts of borax, 14 parts of glass slag, 9 parts of hollow ceramic microspheres, 14 parts of pitchstone, 13 parts of perlite, 10 parts of basalt, 8 parts of ferric oxide, 12 parts of aluminum oxide and 7 parts of hydrated lime.
As a further improvement of the invention, the health-care food is prepared from the following raw materials in parts by weight: 72 parts of fly ash, 17 parts of argil, 21 parts of borax, 13 parts of glass slag, 10 parts of hollow ceramic microspheres, 15 parts of pitchstone, 14 parts of perlite, 11 parts of basalt, 9 parts of ferric oxide, 13 parts of aluminum oxide and 7 parts of hydrated lime.
As a further improvement of the invention, the fly ash comprises silicate, quartz sand, sulfate, calcium oxide, magnesium oxide, iron oxide and aluminum oxide.
As a further improvement of the invention, the density of the fly ash is 1520-1980g/cm3The bulk volume weight is 475-3。
As a further improvement of the invention, expanded graphite is also added.
As a further improvement of the invention, the content of the expanded graphite is 12.5-15.7% by mass.
The invention has the following beneficial effects:
1. the main raw material of the invention is that the fly ash particles are more spherical and spongy, and after being melted, the fly ash particles are contracted into liquid drops under the action of surface tension, and the liquid drops are cooled to form beads, so that the fluidity is good, and a plurality of air holes are formed in the fly ash particles, thereby improving the heat insulation performance and the spreadability of the casting powder, and being beneficial to changing factory wastes into valuables and protecting the environment;
2. the added hollow ceramic microspheres have excellent fluidity, can reduce the viscosity of the casting powder, increase the fluidity and the heat-insulating property, have stable chemical properties and are not easy to decompose at high temperature;
3. the pitchstone, the perlite and the basalt added in the invention have the excellent performances of light weight, heat preservation, heat insulation and fire prevention, and also have the advantages of no combustion, high strength, low water absorption, good blending property and long service life, the carbon content is low, the density is low, the additive floats on the top of a liquid slag layer, does not directly contact molten steel, and does not cause recarburization of the molten steel;
4. the added expanded graphite is expanded at high temperature, so that the spreadability and heat preservation of the covering slag are improved;
5. the stainless steel die casting protective slag prepared by the invention does not need to add a heating agent and a heat preservation agent, can improve the surface quality of steel ingots and the feeding quality of ingot heads, thereby reducing the head cutting rate and improving the yield.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the embodiments described are only some representative embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1
The raw materials comprise the following components in parts by weight: 60 parts of fly ash, 12 parts of argil, 15 parts of borax, 10 parts of glass slag, 5 parts of hollow ceramic microspheres, 12 parts of pitchstone, 10 parts of perlite, 7 parts of basalt, 5 parts of iron oxide, 10 parts of aluminum oxide and 5 parts of hydrated lime.
The fly ash comprises silicate, quartz sand, sulfate, calcium oxide, magnesium oxide, iron oxide and aluminum oxide.
The density of the fly ash is 1520g/cm3Bulk volume weight of 475g/cm3。
Example 2
The raw materials comprise the following components in parts by weight: 80 parts of fly ash, 20 parts of argil, 25 parts of borax, 16 parts of glass slag, 13 parts of hollow ceramic microspheres, 18 parts of pitchstone, 16 parts of perlite, 14 parts of basalt, 12 parts of ferric oxide, 15 parts of aluminum oxide and 10 parts of hydrated lime.
The fly ash comprises silicate, quartz sand, sulfate, calcium oxide, magnesium oxide, iron oxide and aluminum oxide.
The density of the fly ash is 1980g/cm3The bulk volume weight is 985g/cm3。
Example 3
The raw materials comprise the following components in parts by weight: 65 parts of fly ash, 15 parts of argil, 17 parts of borax, 12 parts of glass slag, 7 parts of hollow ceramic microspheres, 13 parts of pitchstone, 12 parts of perlite, 8 parts of basalt, 6 parts of iron oxide, 11 parts of aluminum oxide and 6 parts of hydrated lime.
The fly ash comprises silicate, quartz sand, sulfate, calcium oxide, magnesium oxide, iron oxide and aluminum oxide.
The density of the fly ash is 1630g/cm3The bulk volume weight is 543g/cm3。
Example 4
The raw materials comprise the following components in parts by weight: 75 parts of fly ash, 18 parts of argil, 23 parts of borax, 15 parts of glass slag, 11 parts of hollow ceramic microspheres, 16 parts of pitchstone, 15 parts of perlite, 12 parts of basalt, 10 parts of iron oxide, 14 parts of aluminum oxide and 8 parts of hydrated lime.
The fly ash comprises silicate, quartz sand, sulfate, calcium oxide, magnesium oxide, iron oxide and aluminum oxide.
The density of the fly ash is 1850g/cm3Bulk volume weight of 894g/cm3。
Example 5
The raw materials comprise the following components in parts by weight: 70 parts of fly ash, 16 parts of argil, 20 parts of borax, 14 parts of glass slag, 9 parts of hollow ceramic microspheres, 14 parts of pitchstone, 13 parts of perlite, 10 parts of basalt, 8 parts of ferric oxide, 12 parts of aluminum oxide and 7 parts of hydrated lime.
The fly ash comprises silicate, quartz sand, sulfate, calcium oxide, magnesium oxide, iron oxide and aluminum oxide.
The density of the fly ash is 1670g/cm3Bulk volume weight of 652g/cm3。
Example 6
The raw materials comprise the following components in parts by weight: 72 parts of fly ash, 17 parts of argil, 21 parts of borax, 13 parts of glass slag, 10 parts of hollow ceramic microspheres, 15 parts of pitchstone, 14 parts of perlite, 11 parts of basalt, 9 parts of ferric oxide, 13 parts of aluminum oxide and 7 parts of hydrated lime.
The fly ash comprises silicate, quartz sand, sulfate, calcium oxide, magnesium oxide, iron oxide and aluminum oxide.
The density of the fly ash is 1775g/cm3Bulk volume weight of 751g/cm3。
Example 7
The raw materials comprise the following components in parts by weight: 72 parts of fly ash, 17 parts of argil, 21 parts of borax, 13 parts of glass slag, 10 parts of hollow ceramic microspheres, 15 parts of pitchstone, 14 parts of perlite, 11 parts of basalt, 9 parts of ferric oxide, 13 parts of aluminum oxide and 7 parts of hydrated lime.
Expanded graphite is also added, and the mass percent of the expanded graphite is 12.5%.
The fly ash comprises silicate, quartz sand, sulfate, calcium oxide, magnesium oxide, iron oxide and aluminum oxide.
The density of the fly ash is 1702g/cm3The bulk volume weight is 795g/cm3。
Example 8
The raw materials comprise the following components in parts by weight: 72 parts of fly ash, 17 parts of argil, 21 parts of borax, 13 parts of glass slag, 10 parts of hollow ceramic microspheres, 15 parts of pitchstone, 14 parts of perlite, 11 parts of basalt, 9 parts of ferric oxide, 13 parts of aluminum oxide and 7 parts of hydrated lime.
And expanded graphite is also added, and the mass percent of the expanded graphite is 15.7%.
The fly ash comprises silicate, quartz sand, sulfate, calcium oxide, magnesium oxide, iron oxide and aluminum oxide.
The density of the fly ash is 1836g/cm3Bulk volume weight of 824g/cm3。
Example 9
The raw materials comprise the following components in parts by weight: 70 parts of fly ash, 16 parts of argil, 20 parts of borax, 14 parts of glass slag, 9 parts of hollow ceramic microspheres, 14 parts of pitchstone, 13 parts of perlite, 10 parts of basalt, 8 parts of ferric oxide, 12 parts of aluminum oxide and 7 parts of hydrated lime.
Expanded graphite is also added, and the mass percent of the expanded graphite is 13.6%.
The fly ash comprises silicate, quartz sand, sulfate, calcium oxide, magnesium oxide, iron oxide and aluminum oxide.
The density of the fly ash is 1744g/cm3Root of Chinese pineThe bulk density is 769g/cm3。
Example 10
The raw materials comprise the following components in parts by weight: 70 parts of fly ash, 16 parts of argil, 20 parts of borax, 14 parts of glass slag, 9 parts of hollow ceramic microspheres, 14 parts of pitchstone, 13 parts of perlite, 10 parts of basalt, 8 parts of ferric oxide, 12 parts of aluminum oxide and 7 parts of hydrated lime.
Expanded graphite is also added, and the mass percent of the expanded graphite is 14.1%.
The fly ash comprises silicate, quartz sand, sulfate, calcium oxide, magnesium oxide, iron oxide and aluminum oxide.
The density of the fly ash is 1805g/cm3Bulk volume weight of 801g/cm3。
Test example 1
The stainless steel mold casting powder of examples 1 to 10 of the present invention was subjected to physical property tests, and the results are shown in Table 1.
TABLE 1
Compared with the prior art, the main raw material of the invention is the fly ash particles which are mostly spherical and spongy, and the fly ash particles are contracted into liquid drops under the action of surface tension after being melted and cooled to form beads, so that the fluidity is good, a plurality of air holes are formed in the fly ash particles, the heat insulation performance and the spreadability of the casting powder are improved, and the fly ash protective agent is beneficial to changing factory wastes into valuables and protecting the environment; the added hollow ceramic microspheres have excellent fluidity, can reduce the viscosity of the casting powder, increase the fluidity and the heat-insulating property, have stable chemical properties and are not easy to decompose at high temperature; the pitchstone, the perlite and the basalt added in the invention have the excellent performances of light weight, heat preservation, heat insulation and fire prevention, and also have the advantages of no combustion, high strength, low water absorption, good blending property and long service life, the carbon content is low, the density is low, the additive floats on the top of a liquid slag layer, does not directly contact molten steel, and does not cause recarburization of the molten steel; the added expanded graphite is expanded at high temperature, so that the spreadability and heat preservation of the covering slag are improved; the stainless steel die casting protective slag prepared by the invention does not need to add a heating agent and a heat preservation agent, can improve the surface quality of steel ingots and the feeding quality of ingot heads, thereby reducing the head cutting rate and improving the yield.
Various modifications may be made to the above without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is therefore intended to be limited not by the above description, but rather by the scope of the appended claims.
Claims (7)
1. The stainless steel die-casting covering slag is characterized by being prepared from the following raw materials: fly ash, argil, borax, glass slag, hollow ceramic microbeads, pitchstone, perlite, basalt, iron oxide, aluminum oxide and hydrated lime;
the weight portions of the raw materials are as follows: 60-80 parts of fly ash, 12-20 parts of argil, 15-25 parts of borax, 10-16 parts of glass slag, 5-13 parts of hollow ceramic microspheres, 12-18 parts of pitchstone, 10-16 parts of perlite, 7-14 parts of basalt, 5-12 parts of iron oxide, 10-15 parts of aluminum oxide and 5-10 parts of slaked lime;
the density of the fly ash is 1520-1980g/cm3, and the bulk volume weight is 475-985g/cm3。
2. The stainless steel die-casting covering slag according to claim 1, which is prepared from the following raw materials in parts by weight: 65-75 parts of fly ash, 15-18 parts of argil, 17-23 parts of borax, 12-15 parts of glass slag, 7-11 parts of hollow ceramic microspheres, 13-16 parts of pitchstone, 12-15 parts of perlite, 8-12 parts of basalt, 6-10 parts of iron oxide, 11-14 parts of aluminum oxide and 6-8 parts of slaked lime.
3. The stainless steel die-casting covering slag according to claim 2, which is prepared from the following raw materials in parts by weight: 70 parts of fly ash, 16 parts of argil, 20 parts of borax, 14 parts of glass slag, 9 parts of hollow ceramic microspheres, 14 parts of pitchstone, 13 parts of perlite, 10 parts of basalt, 8 parts of ferric oxide, 12 parts of aluminum oxide and 7 parts of hydrated lime.
4. The stainless steel die-casting covering slag according to claim 2, which is prepared from the following raw materials in parts by weight: 72 parts of fly ash, 17 parts of argil, 21 parts of borax, 13 parts of glass slag, 10 parts of hollow ceramic microspheres, 15 parts of pitchstone, 14 parts of perlite, 11 parts of basalt, 9 parts of ferric oxide, 13 parts of aluminum oxide and 7 parts of hydrated lime.
5. The stainless steel mold casting powder of claim 1, wherein the fly ash comprises silicates, quartz sand, sulfates, calcium oxide, magnesium oxide, iron oxide, and aluminum oxide.
6. The stainless steel mold casting powder according to claim 1, wherein expanded graphite is further added.
7. The stainless steel mold casting powder according to claim 6, wherein the expanded graphite is contained in an amount of 12.5 to 15.7% by mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811521731.5A CN111318677B (en) | 2018-12-13 | 2018-12-13 | Stainless steel mold casting covering slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811521731.5A CN111318677B (en) | 2018-12-13 | 2018-12-13 | Stainless steel mold casting covering slag |
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| Publication Number | Publication Date |
|---|---|
| CN111318677A CN111318677A (en) | 2020-06-23 |
| CN111318677B true CN111318677B (en) | 2021-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1122734A (en) * | 1994-11-11 | 1996-05-22 | 伍本华 | Composition bentonite protection slag |
| JP2003334640A (en) * | 2002-05-17 | 2003-11-25 | Shinagawa Refract Co Ltd | Mold powder for continuous steel casting |
| CN101116906A (en) * | 2006-07-31 | 2008-02-06 | 宝山钢铁股份有限公司 | Carbon-free casting powder for casting steel making die |
| CN102825246A (en) * | 2012-07-31 | 2012-12-19 | 马鞍山科润冶金材料有限公司 | Covering slag for steelmaking die casting by using fly ash |
-
2018
- 2018-12-13 CN CN201811521731.5A patent/CN111318677B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1122734A (en) * | 1994-11-11 | 1996-05-22 | 伍本华 | Composition bentonite protection slag |
| JP2003334640A (en) * | 2002-05-17 | 2003-11-25 | Shinagawa Refract Co Ltd | Mold powder for continuous steel casting |
| CN101116906A (en) * | 2006-07-31 | 2008-02-06 | 宝山钢铁股份有限公司 | Carbon-free casting powder for casting steel making die |
| CN102825246A (en) * | 2012-07-31 | 2012-12-19 | 马鞍山科润冶金材料有限公司 | Covering slag for steelmaking die casting by using fly ash |
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| CN111318677A (en) | 2020-06-23 |
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Denomination of invention: A type of stainless steel mold casting protective slag Effective date of registration: 20231110 Granted publication date: 20210727 Pledgee: Industrial and Commercial Bank of China Limited Hongjiang City Branch Pledgor: Hongjiang Sanxing metallurgical charge Co.,Ltd. Registration number: Y2023980065135 |