CN111424207A - Antibacterial and corrosion-resistant cast iron material for pot and manufacturing process of antibacterial and corrosion-resistant cast iron pot - Google Patents
Antibacterial and corrosion-resistant cast iron material for pot and manufacturing process of antibacterial and corrosion-resistant cast iron pot Download PDFInfo
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- CN111424207A CN111424207A CN202010223026.8A CN202010223026A CN111424207A CN 111424207 A CN111424207 A CN 111424207A CN 202010223026 A CN202010223026 A CN 202010223026A CN 111424207 A CN111424207 A CN 111424207A
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- 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
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/02—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
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Abstract
The antibacterial and corrosion-resistant cast iron material for the pot and the manufacturing process of the antibacterial and corrosion-resistant cast iron pot are characterized in that other alloying elements are added in the ferrosilicon powder inoculation process of molten iron in a foundry ladle before casting of iron castings, wherein the other alloying elements comprise silver Ag, chromium Cr, molybdenum Mo and rare earth RE, so that the antibacterial property and the corrosion resistance can be obtained while the strength and the hardness of the cast iron material are improved, and the requirement of a household cooking appliance market on a high-end cast iron pot is met.
Description
Technical Field
The invention relates to a technology of a cast iron material for a pot, in particular to an antibacterial corrosion-resistant cast iron material for a pot and a manufacturing process of an antibacterial corrosion-resistant cast iron pot.
Background
The cast iron pan is a traditional household cooking tool, is suitable for all stoves and cooking methods, and is widely used. When the cast iron pan is used as a frying pan, a large amount of acid, alkali, salt and other media are contacted, and meanwhile, the cast iron pan needs to be heated to a certain temperature. After being used, the pan body needs to be cleaned to prevent the pan body from rusting and breeding bacteria. Therefore, with the pursuit of people for good life and quality of life, the modern cast iron pan puts higher requirements on the corrosion resistance, the antibacterial property, the mechanical property and the appearance quality of the pan body. The existing cast iron pan is usually cast by common grey cast iron, the common grey cast iron has low relative strength and hardness, is not corrosion-resistant and easy to rust in the using process, has potential harm to human health, and is not suitable for being used as a modern household cooking utensil. The invention aims to provide an antibacterial and corrosion-resistant cast iron material for a pot, which has alloy components meeting the national food hygiene standard and has strength and hardness higher than those of common gray cast iron, and a manufacturing process thereof.
Disclosure of Invention
Aiming at the defects or shortcomings in the prior art, the invention provides an antibacterial and corrosion-resistant cast iron material for a pan and a manufacturing process of the antibacterial and corrosion-resistant cast iron pan.
The technical scheme of the invention is as follows:
the antibacterial and corrosion-resistant cast iron material for the pot is characterized in that other alloying elements are added in the ferrosilicon powder inoculation process of molten iron in a ladle before the cast iron material is poured, wherein the other alloying elements comprise silver Ag, chromium Cr, molybdenum Mo and rare earth RE, and the antibacterial and corrosion-resistant cast iron material is obtained by pouring after the other alloying elements are melted and homogenized in the ladle.
The antibacterial and corrosion-resistant cast iron material comprises, by mass, 0.04-0.06% of silver Ag, 0.2-0.4% of chromium Cr, 0.1-0.3% of molybdenum Mo and 0.01-0.05% of rare earth RE.
The rare earth RE is lanthanum L a and/or cerium Ce.
Cr is added in a ferrochrome mode, Mo is added in a ferromolybdenum mode, and RE is added in a rare earth ferrosilicon mode.
The antibacterial corrosion-resistant cast iron material comprises carbon C, silicon Si and manganese Mn, wherein in percentage by weight, the C is 3.4-4.8, the Si is 2.0-2.4, and the Mn is 0.3-1.0.
The inevitable impurities in the antibacterial and corrosion-resistant cast iron material comprise sulfur S and phosphorus P, wherein the S is less than or equal to 0.10 and the P is less than or equal to 0.10 in percentage by weight.
The antibacterial and corrosion-resistant cast iron material for the pot is characterized by comprising the following components in percentage by mass: carbon C is 3.4-4.8, silicon Si is 2.0-2.4, manganese Mn is 0.3-1.0, Mo is 0.1-0.3, chromium Cr is 0.2-0.4, silver Ag is 0.04-0.06, rare earth RE is 0.01-0.05, and the balance is iron and inevitable impurities, wherein the inevitable impurities comprise sulfur S and phosphorus P, the S is less than or equal to 0.10, and the P is less than or equal to 0.10.
The RE is at least one of lanthanum L a and cerium Ce.
An antibacterial and corrosion-resistant cast iron pan is characterized in that the material of the cast iron pan is the antibacterial and corrosion-resistant cast iron material for the pan.
The manufacturing process of the antibacterial corrosion-resistant cast iron pot is characterized by comprising the following steps of a, preparing materials according to the following components and contents of the cast iron pot material, wherein in percentage by weight, the carbon C is 3.4-4.8, the silicon Si is 2.0-2.4, the manganese Mn is 0.3-1.0, the Mo is 0.1-0.3, the chromium Cr is 0.2-0.4, the silver Ag is 0.04-0.06, the rare earth RE is 0.010.05, the RE is at least one of lanthanum L a and cerium Ce, the balance is iron and inevitable impurities, the inevitable impurities comprise sulfur S and phosphorus P, the S is less than or equal to 0.10, the P is less than or equal to 0.10, b, melting the pig iron and the waste steel in a cupola furnace by coke, controlling the temperature of the molten iron and the molten iron when the molten iron is discharged from a furnace and enters an iron ladle 1420 ℃, adding the molten iron powder, ferrosilicon powder and the ferrosilicon powder into the molten iron ladle, the ferrosilicon powder and the ferrosilicon powder are uniformly poured into the molten iron ladle, and the molten iron powder are uniformly stirred, and the ferrosilicon powder and the molten iron is inoculated into a sand mold.
The invention has the following technical effects: the invention relates to an antibacterial and corrosion-resistant cast iron material for a pot and a manufacturing process of the antibacterial and corrosion-resistant cast iron pot. The silver element is added in the component design, the contents of the chromium element and the molybdenum element are optimized, and the contents of phosphorus and sulfur are strictly controlled. The corrosion resistance is improved by adding the rare earth element, so that the material has higher toughness and higher corrosion resistance while having antibacterial property, and the service life of the antibacterial and corrosion-resistant cast iron pan is prolonged, thereby improving the comprehensive use performance of the cast iron pan to meet the market demand. The pan cast iron material has the characteristics of good antibacterial property, excellent corrosion resistance, high strength and hardness, lower cost and easy production.
The technical idea of the invention is as follows: (1) lanthanum and cerium are added to increase the corrosion resistance of the cast iron material; (2) the addition of silver element makes the cast iron pan have antibacterial and sterilizing properties; (3) the chromium content is improved, so that the corrosion resistance can be improved, and the strength and the hardness of the pot body can be improved; (4) the content of molybdenum is increased, so that the effects of refining crystal grains and improving the strength of the pot body can be achieved. The invention improves the chromium content on the basis of the traditional gray cast iron, adjusts the molybdenum content and improves the strength and the hardness of the gray cast iron; adding silver with strong antibacterial property to make the cast iron material generate antibacterial property; the rare earth element cerium or lanthanum is added, so that the pitting corrosion resistance and the salt mist resistance to weak acid corrosion are improved; the addition of the alloy elements enables the cast iron cookware to have higher corrosion resistance and antibacterial property on the basis of higher strength and hardness, can be used in the field of middle-high-end cast iron cookware, and meets the increasing demands of people on good life.
The implementation of the invention can produce the thick-wall antibacterial corrosion-resistant cast iron pan, which is characterized in that: 1. is suitable for all stoves and cooking methods; 2. the food is not sticky; 3. the harm to the health of the pot body material is avoided; 4. iron element required by human body is supplemented, so as to achieve the effect of enriching blood; 5. silver alloying resists escherichia coli and staphylococcus aureus, and diarrhea is avoided; 6. the cooking is uniformly accelerated at higher temperature, the heat is slowly conducted, the heat is well stored, and little oil and no smoke exist; 7. corrosion resistance, long service life and being capable of being handed down.
Detailed Description
The present invention will be described with reference to examples.
The invention aims to provide an antibacterial and corrosion-resistant cast iron material for a pot, which has alloy components meeting the national food hygiene standards and has strength and hardness exceeding that of common gray cast iron, and a manufacturing process thereof.A preparation method of the antibacterial and corrosion-resistant cast iron material for the pot comprises the steps of adding other alloying elements in the process of carrying out ferrosilicon powder inoculation on molten iron in a foundry ladle before casting the cast iron material, wherein the other alloying elements comprise silver Ag, chromium Cr, molybdenum Mo and rare earth RE, the other alloying elements are melted and homogenized in the foundry ladle to obtain the antibacterial and corrosion-resistant cast iron material, and the antibacterial and corrosion-resistant cast iron material comprises, by mass percent, 0.04-0.06 of silver Ag, 0.2-0.4 of chromium Cr, 0.1-0.3 of molybdenum Mo, 0.01-0.0.05 of rare earth RE, L a and/or Ce. of lanthanum, wherein Mo is added in a molybdenum iron manner, the RE is added in a rare earth manner, the antibacterial and corrosion-resistant cast iron material comprises, C, Si, P, S.
The antibacterial and corrosion-resistant cast iron material for the boiler comprises, by mass, 3.4-4.8% of carbon C, 2.0-2.4% of silicon Si, 0.3-1.0% of manganese Mn, 0.1-0.3% of Mo, 0.2-0.4% of chromium Cr, 0.04-0.06% of silver Ag, 0.01-0.05% of rare earth RE, and the balance of iron and inevitable impurities, wherein the inevitable impurities comprise sulfur S and phosphorus P, the S is less than or equal to 0.10, the P is less than or equal to 0.10, and the RE is at least one of lanthanum L a and cerium Ce.
An antibacterial and corrosion-resistant cast iron pan is made of the antibacterial and corrosion-resistant cast iron material for the pan.
The manufacturing process of the antibacterial corrosion-resistant cast iron pot is characterized by comprising the following steps of a, preparing materials according to the following components and contents of the cast iron pot material, wherein in percentage by weight, the carbon C is 3.4-4.8, the silicon Si is 2.0-2.4, the manganese Mn is 0.3-1.0, the Mo is 0.1-0.3, the chromium Cr is 0.2-0.4, the silver Ag is 0.04-0.06, the rare earth RE is 0.010.05, the RE is at least one of lanthanum L a and cerium Ce, the balance is iron and inevitable impurities, the inevitable impurities comprise sulfur S and phosphorus P, the S is less than or equal to 0.10, the P is less than or equal to 0.10, b, melting the pig iron and the waste steel in a cupola furnace by coke, controlling the temperature of the molten iron and the molten iron when the molten iron is discharged from a furnace and enters an iron ladle 1420 ℃, adding the molten iron powder, ferrosilicon powder and the ferrosilicon powder into the molten iron ladle, the ferrosilicon powder and the ferrosilicon powder are uniformly poured into the molten iron ladle, and the molten iron powder are uniformly stirred, and the ferrosilicon powder and the molten iron is inoculated into a sand mold.
The heat-resistant, corrosion-resistant, antibacterial and high-performance cast iron pan is characterized by comprising, by mass, 3.4-4.4% of C, 2.0-2.4% of Si, less than or equal to 0.10% of S, less than or equal to 0.10% of P, 0.3-1.0% of Mn, 0.1-0.3% of Mo, 0.2-0.4% of Cr, 0.04-0.06% of Ag, 0.01-0.05% of RE, and the balance of Fe and inevitable impurities, wherein RE is at least one rare earth element selected from L a and Ce.
The preparation method of the heat-resistant corrosion-resistant antibacterial high-performance cast iron pan comprises the following steps of weighing 3.4-4.8% of C, 2.0-2.4% of Si, less than or equal to 0.10% of S, less than or equal to 0.10% of P, 0.3-1.0% of Mn, 0.1-0.3% of Mo, 0.2-0.4% of Cr, 0.04-0.06% of Ag, 0.01-0.05% of RE and the balance of iron and inevitable impurities, wherein RE is at least one rare earth element selected from L a and Ce, and b, smelting the raw materials taken in the step a in a cupola furnace, sand casting and molding.
The invention relates to the following elements in terms of action and proportion:
c: c is the most basic component in the casting, and during the casting process, the C promotes graphitization, reduces the chilling tendency, namely reduces cementite, pearlite and ternary phosphorus eutectic, increases ferrite, thereby reducing hardness and improving the processing performance. The content of C in the project is controlled to be 3.4-4.8%.
Cr: cr is an anti-graphitization alloy element, and when the addition amount of Cr is less than 1.5%, the corrosion potential is improved and the pitting sensitivity is reduced after the Cr is added into cast iron, so that the corrosion resistance is improved. Cr is a strong passivating element, which improves the passivating ability of cast iron, and forms a layer of passive film in an oxidizing medium, thereby preventing the interior from being further corroded. In order to ensure the corrosion resistance, the Cr content is designed to be 0.2-0.4% under the premise of considering the improvement of the rare earth on the corrosion resistance.
Mo: mo can refine grains, produce fine grain strengthening and improve the strength of cast iron. The addition of Mo can make the passive film of stainless steel more compact and firm, and can raise its corrosion resistance in dilute hydrochloric acid and dilute sulfuric acid, in particular its resistance to corrosion by chlorine ion. However, the Mo content should not be too high, usually not higher than 1.0%, and too high Mo content may promote ferrite formation to cause some adverse effects. Comprehensively, the Mo content in the invention is controlled to be 0.1-0.3%.
Si: si is a beneficial element in the casting, can promote graphitization like C, and has a more obvious effect of adding silicon in the manner of an inoculant. On one hand, the eutectic of cementite, pearlite and ternary phosphorus can be reduced, and ferrite is increased, so that the strength and hardness are reduced, and the plasticity of the casting is improved; on the other hand, silicon solution strengthens ferrite to increase yield point and hardness. Si improves casting fluidity and improves heat resistance and corrosion resistance. Within a certain range, the strength and the toughness are improved.
Mn: mn is also one of important elements in castings, and a proper amount of Mn is beneficial to texture structure, and enhances the firmness, the strength and the wear resistance. Both Mn and S are stable compounds, elements that hinder graphitization. In the coexistence, Mn and S have high affinity and are combined into an MnS compound. When reaching a certain amount, the casting has the advantages of high strength, high hardness, high density, wear resistance and the like, and the silicon content is correspondingly improved.
P: p is a harmful element, treated as an impurity. Phosphorus often affects the mechanical properties of castings, particularly reduces the toughness and compactness, and is a main cause of casting cracking. In cast iron, P is an element that segregates easily, and a phosphorus eutectic may be formed. For most castings, the phosphorus eutectic increases the brittleness of the casting and severely deteriorates the mechanical properties. However, phosphorus increases hardness and improves wear resistance. In this item, the S content is controlled to 0.10% or less.
S: s is also an impurity and belongs to a harmful element. During casting, the S element has strong affinity with other elements such as Mn, Mg and the like, generates stable carbide, hinders graphitization, consumes spheroidizing elements in molten iron to form residues such as MgS, MnS and the like, and reduces spheroidization due to the consumption effect of sulfur, so that the defects such as slag inclusion, subcutaneous air holes and the like are promoted to form if the content of effective residual spheroidizing elements is too low. The sulfur element should be removed and the content is low. In this item, the S content is controlled to 0.10% or less.
Ag: ag is an important antibacterial element in metal materials. Most of the metal ions have strong bactericidal power, so that not all the metal ions are safe to human bodies, and only some metal ions have relatively safe antibacterial property, wherein Ag is the best. The safety is arranged in sequence as follows: ag, Co, Al, Zn, Fe, Mn, Ba, Ca and the like. The Ag ions can bind to some substances used by the microorganisms for respiration, forming strong binding bonds, so that these substances cannot be utilized by the microorganisms, thereby causing the microorganisms to die. The Ag is added as a main antibacterial element in consideration of both antibacterial property and safety, and the content of the added Ag is 0.04-0.06%.
RE rare earth elements added in the invention are L a and Ce, aiming at improving the corrosion resistance of the cast iron pan, China has abundant rare earth resources, rare earth L a and Ce are rich, after the rare earth is added in the cast iron, the rare earth elements firstly generate the function of purifying molten steel, the rare earth elements and O, S elements react to generate compounds, the melting point of the compounds is mostly about 2000 ℃, the compounds can be precipitated in a solid state before the molten steel is solidified, thereby reducing impurities in the steel2O2The multi-phase inclusion of S makes the inclusion spheroidized and refined, and improves the pitting corrosion resistance. The content of the rare earth in the invention is controlled to be 0.01-0.05%.
The invention aims to improve the corrosion resistance of the cast iron pan by adding L a and Ce on the premise of ensuring the strength and hardness of the cast iron pan, the rare earth resources in China are very rich, wherein heavy rare earth and medium rare earth elements are mostly used as strategic resources in special industries, a large amount of light rare earth such as lanthanum (L a) and cerium (Ce) are seriously excessive, and the rare earth elements have the functions of molten iron purification, inclusion modification and microalloying.
In the first embodiment, the raw materials of the gray cast iron material are weighed according to the following mass percentage, that is, 4.32% of C, 2.41% of Si, 0.081% of S, 0.072% of P, 0.388% of Mn, 0.182% of Mo, 0.324% of Cr, 0.042% of Ag, 0.032% of RE and the balance of iron and inevitable impurities, wherein RE is at least one rare earth element selected from L a and Ce, b, the raw materials taken in the step a are smelted by a cupola and are subjected to sand casting molding, when the molten iron is discharged, the temperature of the molten iron is controlled within the range of 1400-1420 ℃, an inoculation process is added before pouring, inoculant rare earth powder and alloy elements are added into the molten iron bag, and are fully stirred and then poured, and the gray cast iron material after inoculation and alloying has improved strong hardness and antibacterial performance.
Comparative example one: in this comparative example, a corrosion-resistant cast iron for a pot was prepared by the following chemical composition: a. weighing the following raw materials in percentage by mass: 3.2-4.0% of C, 1.5-3.0% of Si, 0.4-1.2% of Mn, 0.4-1.0% of Cr, 0.2-1.2% of Cu, less than 0.2% of S, less than 0.2% of P, and the balance of Fe and inevitable impurities; b. and c, melting the raw materials used in the step a by using a rotary cupola furnace, and performing mud die-casting molding. The difference is that a stokehole treatment, namely an inoculation treatment process, is added before pouring. When the molten iron is discharged, the temperature of the molten iron is controlled within the range of 1400 ℃ and 1420 ℃, and an inoculant, namely ferrosilicon powder, with the weight of 0.3-0.5 percent of the molten iron is added into a ladle and is fully stirred and then poured, so that the effect of inoculation treatment can be obtained.
Comparative example two: in the comparative example, a common gray cast iron for pots had the following chemical composition: weighing the following raw materials in percentage by mass: 4.4% of C, 2.23% of Si, 0.089% of S, 0.095% of P, 0.406% of Mn, 0.127% of Cr and the balance of Fe and inevitable impurities.
Test analysis: the composition of the gray cast iron pan body was compared according to the chemical composition ranges used in the above example one and comparative examples one and two, and the chemical composition is shown in table 1.
TABLE 1 comparison of the chemical compositions in the comparative examples A and B with respect to the antibacterial and anticorrosive cast iron for pots in the example I
TABLE 2 comparison of the hardness of the antibacterial and corrosion-resistant cast iron material for pots in example one with that of comparative example two
TABLE 3 comparison of the antibacterial and corrosion-resistant cast iron material for pots in example one with the corrosion resistance in comparative example two
TABLE 4 comparison of the antibacterial and anticorrosive cast iron material for pots in example one with the oxidation resistance in comparative example two
The process flow comprises the following steps: the method comprises the steps of material preparation (including preparation of pig iron, alloy materials/scrap steel and the like, coke and solvent), cupola melting, molten iron temperature regulation, inoculation treatment (including addition of ferrosilicon powder, ferrochromium, ferromolybdenum, rare earth ferrosilicon and silver), full stirring, melting and sand mold casting and shaping. The alloy component proportion is calculated and added before final pouring, the added chemical components are determined, the tapping temperature of molten iron is controlled, the crystallization core is increased, the metallographic structure is controlled, and the corrosion resistance and the antibacterial performance of the material are improved.
It is pointed out here that the above description is helpful for the person skilled in the art to understand the invention, but does not limit the scope of protection of the invention. Any such equivalents, modifications and/or omissions as may be made without departing from the spirit and scope of the invention may be resorted to.
Claims (10)
1. The antibacterial and corrosion-resistant cast iron material for the pot is characterized in that other alloying elements are added in the ferrosilicon powder inoculation process of molten iron in a ladle before the cast iron material is poured, wherein the other alloying elements comprise silver Ag, chromium Cr, molybdenum Mo and rare earth RE, and the antibacterial and corrosion-resistant cast iron material is obtained by pouring after the other alloying elements are melted and homogenized in the ladle.
2. The antibacterial and corrosion-resistant cast iron material for the pot as claimed in claim 1, wherein the antibacterial and corrosion-resistant cast iron material comprises 0.04-0.06 wt% of Ag, 0.2-0.4 wt% of Cr, 0.1-0.3 wt% of Mo, and 0.01-0.05 wt% of RE.
3. The antibacterial and corrosion-resistant cast iron material for pots as claimed in claim 1, wherein the rare earth RE is lanthanum L a and/or cerium Ce.
4. The antibacterial and corrosion-resistant cast iron material for pots as claimed in claim 1, wherein said Cr is added in ferrochrome, said Mo is added in ferromolybdenum, and said RE is added in rare earth ferrosilicon.
5. The antibacterial and corrosion-resistant cast iron material for the pot as claimed in claim 1, wherein the antibacterial and corrosion-resistant cast iron material comprises carbon C, silicon Si and manganese Mn, and in wt%, the C is 3.4-4.8, the Si is 2.0-2.4, and the Mn is 0.3-1.0.
6. The antibacterial and corrosion-resistant cast iron material for pots as claimed in claim 1, wherein inevitable impurities in the antibacterial and corrosion-resistant cast iron material include S.ltoreq.0.10 and P.ltoreq.0.10 in mass percent (wt%).
7. The antibacterial and corrosion-resistant cast iron material for the pot is characterized by comprising the following components in percentage by mass: carbon C is 3.4-4.8, silicon Si is 2.0-2.4, manganese Mn is 0.3-1.0, Mo is 0.1-0.3, chromium Cr is 0.2-0.4, silver Ag is 0.04-0.06, rare earth RE is 0.01-0.05, and the balance is iron and inevitable impurities, wherein the inevitable impurities comprise sulfur S and phosphorus P, the S is less than or equal to 0.10, and the P is less than or equal to 0.10.
8. The antibacterial and corrosion-resistant cast iron material for pots as claimed in claim 7, wherein said RE is at least one of lanthanum L a and cerium Ce.
9. An antibacterial and corrosion-resistant cast iron pan, characterized in that the material of the cast iron pan is the antibacterial and corrosion-resistant cast iron material for pan as claimed in any one of the preceding claims 1 to 8.
10. The manufacturing process of the antibacterial corrosion-resistant cast iron pot is characterized by comprising the following steps of a, preparing materials according to the following components and contents of the cast iron pot material, wherein in percentage by weight, the carbon C is 3.4-4.8, the silicon Si is 2.0-2.4, the manganese Mn is 0.3-1.0, the Mo is 0.1-0.3, the chromium Cr is 0.2-0.4, the silver Ag is 0.04-0.06, the rare earth RE is 0.010.05, the RE is at least one of lanthanum L a and cerium Ce, the balance is iron and inevitable impurities, the inevitable impurities comprise sulfur S and phosphorus P, the S is less than or equal to 0.10, the P is less than or equal to 0.10, b, melting the pig iron and the waste steel in a cupola furnace by coke, controlling the temperature of the molten iron and the molten iron when the molten iron is discharged from a furnace and enters an iron ladle 1420 ℃, adding the molten iron powder, ferrosilicon powder and the ferrosilicon powder into the molten iron ladle, the ferrosilicon powder and the ferrosilicon powder are uniformly poured into the molten iron ladle, and the molten iron powder are uniformly stirred, and the ferrosilicon powder and the molten iron is inoculated into a sand mold.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114631726A (en) * | 2020-12-15 | 2022-06-17 | 武汉苏泊尔炊具有限公司 | Cooking utensil and processing method thereof |
| CN115369309A (en) * | 2022-09-06 | 2022-11-22 | 上海大学 | Corrosion-resistant cast iron material containing nano-silver antibacterial glaze layer and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002129276A (en) * | 2000-10-31 | 2002-05-09 | Yanmar Diesel Engine Co Ltd | Cast iron material having excellent machinability and thermal fatigue resistance |
| CN101518410A (en) * | 2009-03-19 | 2009-09-02 | 严卫星 | Fabricating method of stainless cast iron cooker |
-
2020
- 2020-03-26 CN CN202010223026.8A patent/CN111424207A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002129276A (en) * | 2000-10-31 | 2002-05-09 | Yanmar Diesel Engine Co Ltd | Cast iron material having excellent machinability and thermal fatigue resistance |
| CN101518410A (en) * | 2009-03-19 | 2009-09-02 | 严卫星 | Fabricating method of stainless cast iron cooker |
Non-Patent Citations (1)
| Title |
|---|
| X.T. LIAN: "Effects of micro-alloying elements on microstructure,element distribution and mechanical properties in gray irons", 《INTERNATIONAL JOURNAL OF METALCASTING》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114631726A (en) * | 2020-12-15 | 2022-06-17 | 武汉苏泊尔炊具有限公司 | Cooking utensil and processing method thereof |
| CN114631726B (en) * | 2020-12-15 | 2024-05-03 | 武汉苏泊尔炊具有限公司 | Cooking utensil and processing method thereof |
| CN115369309A (en) * | 2022-09-06 | 2022-11-22 | 上海大学 | Corrosion-resistant cast iron material containing nano-silver antibacterial glaze layer and preparation method and application thereof |
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Application publication date: 20200717 |