CN105458226A - Casting technology of composite cast iron stir pan - Google Patents
Casting technology of composite cast iron stir pan Download PDFInfo
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- CN105458226A CN105458226A CN201510803887.2A CN201510803887A CN105458226A CN 105458226 A CN105458226 A CN 105458226A CN 201510803887 A CN201510803887 A CN 201510803887A CN 105458226 A CN105458226 A CN 105458226A
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- iron
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- pan
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- 238000005266 casting Methods 0.000 title claims abstract description 34
- 229910001018 Cast iron Inorganic materials 0.000 title claims abstract description 20
- 238000005516 engineering process Methods 0.000 title abstract description 4
- 238000003756 stirring Methods 0.000 title abstract 4
- 239000002131 composite material Substances 0.000 title abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 169
- 229910052742 iron Inorganic materials 0.000 claims abstract description 82
- 239000000203 mixture Substances 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 6
- 239000011701 zinc Substances 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims description 63
- 239000002184 metal Substances 0.000 claims description 63
- 229910052684 Cerium Inorganic materials 0.000 claims description 15
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 15
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- 239000004576 sand Substances 0.000 claims description 15
- 239000000758 substrate Substances 0.000 claims description 15
- 239000000654 additive Substances 0.000 claims description 13
- 230000000996 additive effect Effects 0.000 claims description 13
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 12
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 12
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 11
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 10
- 239000011777 magnesium Substances 0.000 claims description 10
- 239000011159 matrix material Substances 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 230000003750 conditioning effect Effects 0.000 claims description 8
- 229910052749 magnesium Inorganic materials 0.000 claims description 8
- INZDTEICWPZYJM-UHFFFAOYSA-N 1-(chloromethyl)-4-[4-(chloromethyl)phenyl]benzene Chemical compound C1=CC(CCl)=CC=C1C1=CC=C(CCl)C=C1 INZDTEICWPZYJM-UHFFFAOYSA-N 0.000 claims description 7
- 229910002113 barium titanate Inorganic materials 0.000 claims description 7
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 claims description 7
- 229910000476 molybdenum oxide Inorganic materials 0.000 claims description 7
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 claims description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 6
- 238000000137 annealing Methods 0.000 claims description 6
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 6
- 239000001103 potassium chloride Substances 0.000 claims description 6
- 235000011164 potassium chloride Nutrition 0.000 claims description 6
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 6
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 6
- PMYDPQQPEAYXKD-UHFFFAOYSA-N 3-hydroxy-n-naphthalen-2-ylnaphthalene-2-carboxamide Chemical compound C1=CC=CC2=CC(NC(=O)C3=CC4=CC=CC=C4C=C3O)=CC=C21 PMYDPQQPEAYXKD-UHFFFAOYSA-N 0.000 claims description 5
- 229910000616 Ferromanganese Inorganic materials 0.000 claims description 5
- 229910000863 Ferronickel Inorganic materials 0.000 claims description 5
- 229910001145 Ferrotungsten Inorganic materials 0.000 claims description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 5
- 241001062472 Stokellia anisodon Species 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910001651 emery Inorganic materials 0.000 claims description 5
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims description 5
- PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 claims description 5
- 239000011733 molybdenum Substances 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 239000011655 sodium selenate Substances 0.000 claims description 5
- 235000018716 sodium selenate Nutrition 0.000 claims description 5
- 229960001881 sodium selenate Drugs 0.000 claims description 5
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 5
- 229910052721 tungsten Inorganic materials 0.000 claims description 5
- 239000010937 tungsten Substances 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 239000007822 coupling agent Substances 0.000 claims description 4
- 238000007710 freezing Methods 0.000 claims description 4
- 230000008014 freezing Effects 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 239000011787 zinc oxide Substances 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 3
- 239000011573 trace mineral Substances 0.000 abstract description 2
- 235000013619 trace mineral Nutrition 0.000 abstract description 2
- 229910000640 Fe alloy Inorganic materials 0.000 abstract 1
- 238000004321 preservation Methods 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 description 4
- 206010022971 Iron Deficiencies Diseases 0.000 description 3
- 208000007502 anemia Diseases 0.000 description 3
- 229910052720 vanadium Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 102000004190 Enzymes Human genes 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- PMVSDNDAUGGCCE-TYYBGVCCSA-L Ferrous fumarate Chemical compound [Fe+2].[O-]C(=O)\C=C\C([O-])=O PMVSDNDAUGGCCE-TYYBGVCCSA-L 0.000 description 1
- 102000001554 Hemoglobins Human genes 0.000 description 1
- 108010054147 Hemoglobins Proteins 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000036737 immune function Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000004220 muscle function Effects 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001502 supplementing effect Effects 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
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
Abstract
The invention relates to cookers in the field of daily life, in particular to a casting technology of a composite cast iron stir pan. Two kinds of iron alloy with different compositions are selected, smelted and then cast into the composite cast iron stir pan. The cast iron stir pan is cast two times, materials adopted in casting of two times are different, more trace elements and reinforcing compositions are included in the inner layer, and therefore necessary iron and zinc elements are provided by the inner layer in contact with food, and meanwhile the strength and rust resisting capacity of the inner layer are greatly improved. Meanwhile, after the inner layer and the outer layer are cast, atoms with the same compositions and different compositions between the inner layer and the outer layer migrate and fuse by means of heat preservation of a period of time, and finally the strength and uniformity of a pan body are improved.
Description
Technical field
The present invention relates to the cooker in daily life field, specifically a kind of compounded cast iron frying pan casting technique.
Background technology
Iron is the basic element being configured to cell.The iron of human body 72% is present in hemoglobin matter, and iron deficiency can cause anaemia, and in life, iron essence absorption channel is limited, and the absorbent ferro element of human body can only be active iron essence.According to the healthy channel of Netease, according to statistics: the whole nation about has the children of 30% to suffer from anaemia, women's iron deficiency is still serious, and the elderly also suffers from anaemia in various degree.
Iron deficiency, the activity of the dependence enzyme of a lot of iron enzyme of body and iron can be made to reduce, affect multiple metabolic process, thus infringement nerve, digestion, muscle and immune function, cause apocleisis, partial eclipse, affect the growth of children's torso, the present head of a family, all high to the desired value of child, long to see the son succeed in life, hope that female Cheng Feng is the ardent hope of the head of a family to child; But first our head of a family must make a secondary healthy physique for child, and have left constantly supplementing of ferro element, healthy health has just become water without a source, becomes a useful person and also just becomes castles in the air.Therefore, in daily life, cooking more and more relies on casting iron pan, and casting iron pan in use, can make its ferro element contained enter in dish, thus be taken in by human body, thus supplements ferro element for human body.
Existing iron pan is all generally adopt cast iron smelting to become molten iron, then cast molding after annealing obtains, if this common iron pan remains water after use, is easy to get rusty, be difficult to cleaning when next cooking, and can cause in food, being full of one iron rust taste.
Summary of the invention
In order to solve the problem that iron pan in prior art easily gets rusty, the invention provides a kind of compounded cast iron frying pan casting technique, by the casting iron pan of this cast, while ferro element is provided, the residual problem of rustiness caused of water when can effectively prevent from cleaning.
The present invention for solving the problems of the technologies described above adopted technical scheme is: a kind of compounded cast iron frying pan casting technique, comprises the following steps:
1) choose ferronickel and ferrotungsten as base-material, and be smelted into molten metal after it being mixed with metallic nickel, and in molten metal, the content of nickel and tungsten is respectively 28-30% and 37-39%, all the other are iron, carbon and impurity;
2) additive is added in the molten metal obtained to step 1), each component of composition additive is the cerium of the titanium oxide of molten metal gross weight 3.5-3.7%, the molybdenum oxide of molten metal gross weight 4.3-4.4%, the zinc of molten metal gross weight 10.3-10.5%, the calcirm-fluoride of molten metal gross weight 0.6-0.8%, the sodium selenate of molten metal gross weight 3.4-3.5%, the barium titanate of molten metal gross weight 1.1-1.2%, the vanadium carbide of molten metal gross weight 2.3-2.4% and molten metal gross weight 1.5-1.7%, after insulation 2-3h, for subsequent use;
3) choose cast iron, ferromanganese, vanadium iron, magnesium, aluminium, molybdenum smelt into molten iron after mixing according to a certain percentage with cerium, for subsequent use;
Wherein, in molten iron, the content of each component is respectively: the cerium of Mo and 0.8-0.9% of Al, 1.2-1.3% of Mg, 2.9-3.3% of V, 2.2-2.3% of Mn, 2.5-2.7% of Fe, 3-3.5% of 86-87%, and the content of all the other impurity and carbon is no more than 0.3%;
4) iron pan matrix is cast into by the molten iron importing pot mould in step 3), described pot mould comprises an internal mold and an external mold, by cooling in the gap of external mold in molten iron importing is obtained iron pan matrix, the outer surface of internal mold is densely covered with projection and depression, is densely covered with pit and projection to make the iron pan base inner surface of casting;
5) when the iron pan substrate temperature of step 4) casting is reduced to 850-900 DEG C, the sand mo(u)ld that an outer surface is arc is placed in it, then to steps for importing 2 between this sand mo(u)ld and iron pan base inner surface) molten metal prepared, thus to cast one deck protection inwall for the iron pan inner surface of step 4) casting, obtained iron pan base substrate;
6) iron pan base substrate is placed 4-5h, then annealing in process under 800-850 DEG C of condition together with sand mo(u)ld insulation, with emery wheel, its inner surface is polished smooth after its cooling, and install panhandle and namely obtain product.
Described step 2) in titanium oxide used use after steps of processing: titanium oxide is ground to particle diameter and is no more than 0.074mm, then put it into mix in its weight 2-3 surface conditioning agent doubly and evenly obtain mixture, then mixture is dried under the condition of 85 DEG C, until its weight no longer changes, finally being proceeded to temperature is freezing 1-2h in the refrigerating chamber of-10 DEG C, namely treated zinc oxide is obtained after taking-up, wherein, described surface conditioning agent is that isopropyl alcohol and titanate coupling agent are mixed to get according to the ratio that weight ratio is 2:3.
Described step 2) in potassium chloride also containing molten metal gross weight 0.2-0.3% in additive used and sodium carboxymethylcellulose mixture, and the weight ratio of potassium chloride and sodium carboxymethylcellulose is 5:3.
Beneficial effect: the present invention compared with prior art, has the following advantages:
First, casting iron pan is cast by the present invention at twice, and material used during twice casting is different, containing more trace element and enhancing ingredients in internal layer, thus make the internal layer contacted with food while providing necessary iron and Zn-ef ficiency, significantly enhance its intensity and resistant to rust ability;
Secondly, in the present invention, make the densely covered full pit of outer iron pan base inner surface and projection by the mould structure of uniqueness, these structures, when casting internal layer, can strengthen the adhesion between ectonexine greatly;
Finally, the present invention, after ectonexine of having cast, by the insulation of a period of time, makes the atom of identical component and heterogeneity between ectonexine move mutually and merge, finally enhances intensity and the homogeneity of pot body.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further elaborated, and each raw material used in the present invention is all convenient source, all obtains by commercially available approach.
Embodiment 1
A kind of compounded cast iron frying pan casting technique, comprises the following steps:
1) choose ferronickel and ferrotungsten as base-material, and be smelted into molten metal after it being mixed with metallic nickel, and in molten metal, the content of nickel and tungsten is respectively 28% and 37%, all the other are iron, carbon and impurity;
2) additive is added in the molten metal obtained to step 1), each component of composition additive is the cerium of the titanium oxide of molten metal gross weight 3.5%, the molybdenum oxide of molten metal gross weight 4.3%, the zinc of molten metal gross weight 10.3%, the calcirm-fluoride of molten metal gross weight 0.6%, the sodium selenate of molten metal gross weight 3.4%, the barium titanate of molten metal gross weight 1.1%, the vanadium carbide of molten metal gross weight 2.3% and molten metal gross weight 1.5%, after insulation 2h, for subsequent use;
3) choose cast iron, ferromanganese, vanadium iron, magnesium, aluminium, molybdenum smelt into molten iron after mixing according to a certain percentage with cerium, for subsequent use;
Wherein, in molten iron, the content of each component is respectively: the Fe of 87%, the Mn of 3%, 2.5% V, Mg, the Al of 2.9% of 2.3%, the cerium of the Mo of 1.3% and 0.8%, all the other are carbon and not removable trace impurity;
4) iron pan matrix is cast into by the molten iron importing pot mould in step 3), described pot mould comprises an internal mold and an external mold, by cooling in the gap of external mold in molten iron importing is obtained iron pan matrix, the outer surface of internal mold is densely covered with projection and depression, is densely covered with pit and projection to make the iron pan base inner surface of casting;
5) when the iron pan substrate temperature of step 4) casting is reduced to 850 DEG C, the sand mo(u)ld that an outer surface is arc is placed in it, then to steps for importing 2 between this sand mo(u)ld and iron pan base inner surface) molten metal prepared, thus to cast one deck protection inwall for the iron pan inner surface of step 4) casting, obtained iron pan base substrate;
6) iron pan base substrate is placed 4h, then annealing in process under 800 DEG C of conditions together with sand mo(u)ld insulation, with emery wheel, its inner surface is polished smooth after its cooling, and install panhandle and namely obtain product.
Embodiment 2
A kind of compounded cast iron frying pan casting technique, comprises the following steps:
1) choose ferronickel and ferrotungsten as base-material, and be smelted into molten metal after it being mixed with metallic nickel, and in molten metal, the content of nickel and tungsten is respectively 30% and 39%, all the other are iron, carbon and impurity;
2) additive is added in the molten metal obtained to step 1), each component of composition additive is the cerium of the titanium oxide of molten metal gross weight 3.7%, the molybdenum oxide of molten metal gross weight 4.4%, the zinc of molten metal gross weight 10.5%, the calcirm-fluoride of molten metal gross weight 0.8%, the sodium selenate of molten metal gross weight 3.5%, the barium titanate of molten metal gross weight 1.2%, the vanadium carbide of molten metal gross weight 2.4% and molten metal gross weight 1.7%, after insulation 3h, for subsequent use;
3) choose cast iron, ferromanganese, vanadium iron, magnesium, aluminium, molybdenum smelt into molten iron after mixing according to a certain percentage with cerium, for subsequent use;
Wherein, in molten iron, the content of each component is respectively: the Fe of 86%, the Mn of 3.5%, 2.7% V, Mg, the Al of 3.3% of 2.2%, the cerium of the Mo of 1.2% and 0.9%, all the other are carbon and not removable trace impurity;
4) iron pan matrix is cast into by the molten iron importing pot mould in step 3), described pot mould comprises an internal mold and an external mold, by cooling in the gap of external mold in molten iron importing is obtained iron pan matrix, the outer surface of internal mold is densely covered with projection and depression, is densely covered with pit and projection to make the iron pan base inner surface of casting;
5) when the iron pan substrate temperature of step 4) casting is reduced to 900 DEG C, the sand mo(u)ld that an outer surface is arc is placed in it, then to steps for importing 2 between this sand mo(u)ld and iron pan base inner surface) molten metal prepared, thus to cast one deck protection inwall for the iron pan inner surface of step 4) casting, obtained iron pan base substrate;
6) iron pan base substrate is placed 5h, then annealing in process under 850 DEG C of conditions together with sand mo(u)ld insulation, with emery wheel, its inner surface is polished smooth after its cooling, and install panhandle and namely obtain product.
Embodiment 3
A kind of compounded cast iron frying pan casting technique, comprises the following steps:
1) choose ferronickel and ferrotungsten as base-material, and be smelted into molten metal after it being mixed with metallic nickel, and in molten metal, the content of nickel and tungsten is respectively 29% and 38%, all the other are iron, carbon and impurity;
2) additive is added in the molten metal obtained to step 1), each component of composition additive is the cerium of the titanium oxide of molten metal gross weight 3.6%, the molybdenum oxide of molten metal gross weight 4.35%, the zinc of molten metal gross weight 10.4%, the calcirm-fluoride of molten metal gross weight 0.7%, the sodium selenate of molten metal gross weight 3.45%, the barium titanate of molten metal gross weight 1.15%, the vanadium carbide of molten metal gross weight 2.35% and molten metal gross weight 1.6%, after insulation 2.5h, for subsequent use;
3) choose cast iron, ferromanganese, vanadium iron, magnesium, aluminium, molybdenum smelt into molten iron after mixing according to a certain percentage with cerium, for subsequent use;
Wherein, in molten iron, the content of each component is respectively: the Fe of 86.5%, the Mn of 3.25%, 2.6% V, Mg, the Al of 3.1% of 2.25%, the cerium of the Mo of 1.25% and 0.85%, all the other are carbon and not removable trace impurity;
4) iron pan matrix is cast into by the molten iron importing pot mould in step 3), described pot mould comprises an internal mold and an external mold, by cooling in the gap of external mold in molten iron importing is obtained iron pan matrix, the outer surface of internal mold is densely covered with projection and depression, is densely covered with pit and projection to make the iron pan base inner surface of casting;
5) when the iron pan substrate temperature of step 4) casting is reduced to 875 DEG C, the sand mo(u)ld that an outer surface is arc is placed in it, then to steps for importing 2 between this sand mo(u)ld and iron pan base inner surface) molten metal prepared, thus to cast one deck protection inwall for the iron pan inner surface of step 4) casting, obtained iron pan base substrate;
6) iron pan base substrate is placed 4.5h, then annealing in process under 825 DEG C of conditions together with sand mo(u)ld insulation, with emery wheel, its inner surface is polished smooth after its cooling, and install panhandle and namely obtain product.
Be more than brass tacks mode of the present invention, can further improve on above basis and limit:
As, described step 2) in titanium oxide used can first re-use after steps of processing: titanium oxide is ground to particle diameter and is no more than 0.074mm, then put it into mix in its weight 2-3 surface conditioning agent doubly and evenly obtain mixture, then mixture is dried under the condition of 85 DEG C, until its weight no longer changes, finally being proceeded to temperature is freezing 1-2h in the refrigerating chamber of-10 DEG C, namely treated zinc oxide is obtained after taking-up, wherein, described surface conditioning agent is that isopropyl alcohol and titanate coupling agent are mixed to get according to the ratio that weight ratio is 2:3;
And for example, described step 2) in potassium chloride also containing molten metal gross weight 0.2-0.3% in additive used and sodium carboxymethylcellulose mixture, and the weight ratio of potassium chloride and sodium carboxymethylcellulose is 5:3;
For another example, described step 2) in molybdenum oxide used, barium titanate and vanadium carbide also can first re-use respectively through after steps of processing before use: molybdenum oxide, barium titanate and vanadium carbide are ground to particle diameter respectively and are no more than 0.074mm, then put it into mix in its weight 2-3 surface conditioning agent doubly and evenly obtain mixture, then mixture is dried under the condition of 85 DEG C, until its weight no longer changes, finally being proceeded to temperature is freezing 1-2h in the refrigerating chamber of-10 DEG C, can use after taking-up, wherein, described surface conditioning agent is that isopropyl alcohol and titanate coupling agent are mixed to get according to the ratio that weight ratio is 2:3.
Claims (3)
1. a compounded cast iron frying pan casting technique, is characterized in that, comprises the following steps:
1) choose ferronickel and ferrotungsten as base-material, and be smelted into molten metal after it being mixed with metallic nickel, and in molten metal, the content of nickel and tungsten is respectively 28-30% and 37-39%, all the other are iron, carbon and impurity;
2) additive is added in the molten metal obtained to step 1), each component of composition additive is the cerium of the titanium oxide of molten metal gross weight 3.5-3.7%, the molybdenum oxide of molten metal gross weight 4.3-4.4%, the zinc of molten metal gross weight 10.3-10.5%, the calcirm-fluoride of molten metal gross weight 0.6-0.8%, the sodium selenate of molten metal gross weight 3.4-3.5%, the barium titanate of molten metal gross weight 1.1-1.2%, the vanadium carbide of molten metal gross weight 2.3-2.4% and molten metal gross weight 1.5-1.7%, after insulation 2-3h, for subsequent use;
3) choose cast iron, ferromanganese, vanadium iron, magnesium, aluminium, molybdenum smelt into molten iron after mixing according to a certain percentage with cerium, for subsequent use;
Wherein, in molten iron, the content of each component is respectively: the cerium of Mo and 0.8-0.9% of Al, 1.2-1.3% of Mg, 2.9-3.3% of V, 2.2-2.3% of Mn, 2.5-2.7% of Fe, 3-3.5% of 86-87%, and the content of all the other impurity and carbon is no more than 0.3%;
4) iron pan matrix is cast into by the molten iron importing pot mould in step 3), described pot mould comprises an internal mold and an external mold, by cooling in the gap of external mold in molten iron importing is obtained iron pan matrix, the outer surface of internal mold is densely covered with projection and depression, is densely covered with pit and projection to make the iron pan base inner surface of casting;
5) when the iron pan substrate temperature of step 4) casting is reduced to 850-900 DEG C, the sand mo(u)ld that an outer surface is arc is placed in it, then to steps for importing 2 between this sand mo(u)ld and iron pan base inner surface) molten metal prepared, thus to cast one deck protection inwall for the iron pan inner surface of step 4) casting, obtained iron pan base substrate;
6) iron pan base substrate is placed 4-5h, then annealing in process under 800-850 DEG C of condition together with sand mo(u)ld insulation, with emery wheel, its inner surface is polished smooth after its cooling, and install panhandle and namely obtain product.
2. a kind of compounded cast iron frying pan casting technique according to claim 1, it is characterized in that: described step 2) in titanium oxide used for use after steps of processing: titanium oxide is ground to particle diameter and is no more than 0.074mm, then put it into mix in its weight 2-3 surface conditioning agent doubly and evenly obtain mixture, then mixture is dried under the condition of 85 DEG C, until its weight no longer changes, finally being proceeded to temperature is freezing 1-2h in the refrigerating chamber of-10 DEG C, namely treated zinc oxide is obtained after taking-up, wherein, described surface conditioning agent is that isopropyl alcohol and titanate coupling agent are mixed to get according to the ratio that weight ratio is 2:3.
3. a kind of compounded cast iron frying pan casting technique according to claim 1, it is characterized in that: described step 2) in potassium chloride also containing molten metal gross weight 0.2-0.3% in additive used and sodium carboxymethylcellulose mixture, and the weight ratio of potassium chloride and sodium carboxymethylcellulose is 5:3.
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| CN105855454A (en) * | 2016-04-11 | 2016-08-17 | 佛山市旲桥科技有限公司 | Cast iron pot with composite material as sand mould and casting method thereof |
| CN106270453A (en) * | 2016-08-23 | 2017-01-04 | 张家港华日法兰有限公司 | A kind of processing method of multi-level flange |
| CN107712131A (en) * | 2017-11-29 | 2018-02-23 | 苏州市西山宏运材料用品厂 | A kind of wear-resisting tea stir-frying pot |
| CN107821658A (en) * | 2017-11-29 | 2018-03-23 | 苏州市西山宏运材料用品厂 | A kind of high intensity tea stir-frying pot |
| CN111961956A (en) * | 2020-08-21 | 2020-11-20 | 武汉轻工大学 | Iron pan rich in various trace elements and preparation method thereof |
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