CN113481423A - High-strength pig iron pan and preparation process thereof - Google Patents
High-strength pig iron pan and preparation process thereof Download PDFInfo
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- CN113481423A CN113481423A CN202110735555.0A CN202110735555A CN113481423A CN 113481423 A CN113481423 A CN 113481423A CN 202110735555 A CN202110735555 A CN 202110735555A CN 113481423 A CN113481423 A CN 113481423A
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- pig iron
- strength
- iron pan
- pot
- metal
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Classifications
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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
-
- 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
- A47J27/00—Cooking-vessels
- A47J27/002—Construction of cooking-vessels; Methods or processes of manufacturing specially adapted for cooking-vessels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/02—Pressure casting making use of mechanical pressure devices, e.g. cast-forging
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/08—Manufacture of cast-iron
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D5/00—Heat treatments of cast-iron
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Food Science & Technology (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The application relates to the field of kitchen ware, and particularly discloses a high-strength pig iron pan and a preparation process thereof, wherein the high-strength pig iron pan is prepared from the following components in parts by mass: 100 parts of pig iron, 1-4 parts of metal manganese, 0.2-0.6 part of metal titanium and 0-0.4 part of other metals. This application improves the shock resistance, hardness and the wearability of pig iron pot to improve pig iron pot's life's advantage.
Description
Technical Field
The application relates to the field of kitchenware, in particular to a high-strength pig iron pan and a preparation process thereof.
Background
The heat conduction efficiency of the pig iron pot is high, the dishes can be cooked thoroughly in a short time, and iron elements beneficial to human health can be released during heating.
However, in the stir-frying process, the turner and the pig iron pan continuously collide at high temperature, the pig iron pan has a loose structure and poor impact resistance, so that the deformation and damage are easy to occur, and the service life of the pig iron pan is relatively short.
Disclosure of Invention
In order to provide a pig iron pan with better impact strength, the application provides a high-strength pig iron pan and a preparation process thereof.
First aspect, the application provides a high strength pig iron pot, adopts following technical scheme:
a high-strength pig iron pan is prepared from the following components in parts by mass:
100 portions of pig iron
1-4 parts of manganese metal
0.2 to 0.6 portion of metallic titanium
0 to 0.4 portion of other metals.
The metal manganese and the metal titanium in the proportion are combined and infiltrated into the pig iron, the metallographic structure of the pig iron can be changed, the pig iron is more uniform and compact, the defect that the structure of the pig iron is loose is overcome, the impact resistance of the pig iron is improved, the rough surface condition of the pig iron pot is obviously improved, the surface of the pig iron pot is more smooth and smooth, the abrasion resistance of the pig iron pot is favorably improved, the pig iron pot is not easy to damage for a long time, and the service life of the pig iron pot is greatly prolonged.
The addition of the titanium element is also beneficial to improving the antibacterial and sterilizing performance of the pig iron pan, bacteria are not easy to breed in the pig iron pan, and thus the use safety of the pig iron pan is improved.
By controlling the addition amount of the metal manganese or titanium, the corrosion resistance and the oxidation resistance of the pig iron pot are not easy to be reduced due to the overhigh addition amount of the manganese, and the situation of compactness reduction due to the overhigh addition amount of the titanium is not easy to occur, so that the pig iron pot is not easy to crack due to loose structure. And the impact resistance and the wear resistance of the pig iron pan are not obvious because the addition amount of the manganese metal or the titanium metal is too small.
Preferably, the other metal comprises one or both of zinc and selenium.
When the pig iron pan is used for cooking, zinc and selenium can be separated out by resonance with iron molecules after being heated, so that the pig iron pan is beneficial to supplementing iron, zinc and selenium elements required by a human body in daily life, can help the human body to resist aging and prevent diseases to a certain extent, and has a better health-care effect.
Preferably, the addition amount of the zinc is 0.01-0.2 part, and the addition amount of the selenium is 0.03-0.2 part.
By controlling the addition amount of the zinc and the selenium, the release amount of the zinc and the selenium is not easy to be too high, and the harmful influence on the human body caused by excessive release of the zinc and the selenium is not easy to generate.
In a second aspect, the present application provides a preparation process of a high-strength pig iron pan, which adopts the following technical scheme:
a preparation process of a high-strength pig iron pan comprises the following steps:
step (1), mixing the pig iron blocks and the metal titanium under the protection of inert gas for smelting, wherein the smelting temperature is 1800-2000-;
step (2), pouring molten iron into a mold, and then carrying out die-casting molding to obtain a high-strength pig iron pan;
if other metals are required to be added, after the molten iron is poured into the mold, when the temperature of the molten iron is reduced to 1150-plus-1200 ℃, the other metals are added and stirred uniformly.
Heating to 1800 plus 2000 ℃, fully mixing the metal titanium and the pig iron blocks in the remelting process, introducing inert gas to ensure that the metal titanium is not easy to oxidize in the high-temperature remelting process, then cooling to 1350 plus 1550 ℃, adding manganese metal to uniformly mix the manganese metal, the mixed liquid of the metal titanium and pig iron to obtain molten iron with fully mixed manganese metal and metal titanium, cooling after the molten iron is poured, adding other metals after the cooling to ensure that the other metals keep better stability, and finally performing die-casting molding to obtain the high-strength pig iron pan with better strength and hardness.
Preferably, after the high-strength pig iron pot prepared in the step (2) is cooled, the temperature is raised to 400-500 ℃, the temperature is kept for 2-3h, and then the refined high-strength pig iron pot is obtained through natural cooling.
The cooled high-strength pig iron pot is heated to 400-plus-500 ℃ again, and is insulated for 2-3h for tempering treatment, so that the residual thermal stress of the high-strength pig iron pot in the cooling process is reduced, the impact strength and the wear resistance of the high-strength pig iron pot are improved, and the service life of the pig iron pot is further prolonged.
Preferably, the temperature rise rate of the high-strength pig iron pan prepared in the step (2) is 5-10 ℃/min.
By controlling the heating rate of the high-strength pig iron pan to be 5-10 ℃/min, the method is beneficial to refining the crystal structure of the pig iron pan, has better effect of eliminating residual thermal stress, is beneficial to reducing the brittleness of the pig iron pan and prolonging the service life of the pig iron pan.
Preferably, in the step (1), after the metal manganese is added, the stirring speed is 20-60 r/min.
The metal manganese is added and the stirring speed is controlled, so that the mixing effect of the metal manganese, the metal titanium and the pig iron is better, and the components in the molten iron are more uniformly distributed.
Preferably, in the step (2), the other metals are selenium and zinc.
Preferably, in the step (2), the selenium and/or zinc mixture is preheated to 800-.
The selenium and/or zinc are mixed and preheated to the temperature of 800-1000 ℃, so that the pig iron pot still keeps better impact strength and wear resistance after the selenium and the zinc are added.
In summary, the present application has the following beneficial effects:
1. this application adds specific proportion's metal titanium and metal manganese in pig iron, make pig iron's shock resistance and wear resistance improve, thereby make slice and pig iron pot collision back, pig iron pot non-deformable or damaged, be favorable to improving the life of pig iron pot, and still give the smooth degree of pig iron pot preferred, make pig iron pot outward appearance level and smooth more, make pig iron enough keep even heat transfer effect, local overheated phenomenon is difficult for appearing in the pig iron pot, and still give the antibacterial sterilization effect of pig iron pot, make difficult breed bacterium in the pig iron pot, make the pig iron pot make the security improve.
2. Selenium or zinc is added into pig iron, a pig iron pot is heated to separate out selenium, zinc and iron elements, and the selenium, the zinc and the iron are all trace elements required by a human body daily, so that the pig iron has a good health care effect.
3. This application obtains high strength pig iron pot through above-mentioned preparation technology, and the mixing effect of pig iron and each component is preferred to make pig iron form compact even structure after the die-casting shaping, make the shock resistance and the wearability preferred of pig iron pot, thereby obtain the longer pig iron pot of life.
Detailed Description
The present application will be described in further detail with reference to examples and comparative examples.
Example 1
A high-strength pig iron pan is composed of 2kg of pig iron, 0.02kg of metal manganese and 0.012kg of metal titanium, and the preparation process is as follows: adding 2kg of pig iron blocks and 0.012kg of metal titanium into a smelting furnace together under the protection of nitrogen for smelting, wherein the smelting temperature is 1800 ℃, preserving heat for 40min at 1800 ℃, then reducing the temperature of molten iron to 1550 ℃, then adding 0.02kg of metal manganese, stirring at the speed of 40r/min, and uniformly stirring to obtain the molten iron;
and (2) pouring molten iron into the mold, and then performing die-casting molding by using a pressure cooker machine to obtain the high-strength pig iron pan.
Example 2
A high-strength pig iron pan is composed of 2kg of pig iron, 0.04kg of metal manganese and 0.008kg of metal titanium, and the preparation process is as follows: step (1), adding 2kg of pig iron blocks and 0.008kg of metal titanium into a smelting furnace together under the protection of nitrogen for smelting, wherein the smelting temperature is 1900 ℃, preserving the heat for 30min at 1900 ℃, then reducing the temperature of molten iron to 1400 ℃, then adding 0.04kg of metal manganese, stirring at the speed of 20r/min, and stirring uniformly to obtain the molten iron;
and (2) pouring molten iron into the mold, and then performing die-casting molding by using a pressure cooker machine to obtain the high-strength pig iron pan.
Example 3
A high-strength pig iron pan is composed of 2kg of pig iron, 0.08kg of metal manganese and 0.004kg of metal titanium, and the preparation process comprises the following steps: and (1) adding 2kg of pig iron blocks and 0.004kg of metal titanium into a smelting furnace together under the protection of nitrogen for smelting, wherein the smelting temperature is 2000 ℃, keeping the temperature at 2000 ℃ for 20min, then reducing the temperature of molten iron to 1350 ℃, and then adding 0.08kg of metal manganese, and the stirring speed is 60 r/min. Stirring uniformly to obtain molten iron;
and (2) pouring molten iron into the mold, and then performing die-casting molding by using a pressure cooker machine to obtain the high-strength pig iron pan.
Example 4
The difference from example 2 is that: in the step (2), after the molten iron is poured into the mold, selenium iron and zinc iron are added at the temperature of 1150 ℃ so that the mass of selenium is 0.004kg and the mass of zinc is 0.0006kg, and then a pressure cooker is used for die-casting forming to obtain the high-strength pig iron pan.
Example 5
The difference from example 4 is that: in the step (2), the selenium iron and the zinc iron are added, preheated to 800 ℃ and then added into the molten iron.
Example 6
The difference from example 2 is that: in the step (2), after the molten iron is poured into the mold, at the temperature of the molten iron of 1200 ℃, selenium iron and zinc iron are added and preheated to 1000 ℃, wherein the mass of selenium is 0.0002kg and the mass of zinc is 0.004kg, and then the high-strength pig iron pot is obtained by pressure casting molding through a pressure cooker machine.
Example 7
The difference from example 6 is that: and (3) cooling the high-strength pig iron pot prepared in the step (2), putting the cooled high-strength pig iron pot into a tempering furnace, raising the temperature to 500 ℃ at the speed of 8 ℃/min, preserving the temperature for 2h, and naturally cooling to obtain the refined high-strength pig iron pot.
Example 8
The difference from example 7 is that: and (3) cooling the high-strength pig iron pot prepared in the step (2), and then putting the cooled high-strength pig iron pot into a tempering furnace, wherein the heating rate is 5 ℃/min in the heating process.
Example 9
The difference from example 6 is that: and (3) heating the high-strength pig iron pot prepared in the step (2) to 400 ℃ at a speed of 10 ℃/min in a tempering furnace, preserving heat for 3h, and naturally cooling to obtain the refined high-strength pig iron pot.
Comparative example 1 provides a commercially available ordinary iron pan.
Comparative example 2
The difference from example 2 is that: in the step (1), 0.8kg of metallic titanium is adopted to replace 0.008kg of metallic titanium.
Comparative example 3
The difference from example 2 is that: in the step (1), 0.4kg of manganese metal is adopted to replace 0.04kg of manganese metal.
Comparative example 4
The difference from example 2 is that: in the step (1), the melting temperature is 2300 ℃.
Comparative example 5
The difference from example 2 is that: in the step (1), the smelting temperature is 1600 ℃.
Experiment 1
Hardness tests were carried out on each example and on a comparative pig iron pan using a rockwell hardness tester, model HR-150D, according to the rockwell hardness test of metal materials, GB/T230.1-2009.
Experiment 2
According to GB/T229-2007 Charpy impact test method for metallic materials, a Charpy impact tester with model number JB30A was used to perform impact strength tests on the pig iron pans of each example and comparative example.
The test results of experiment 1 and experiment 2 are detailed in table 1.
TABLE 1
As can be seen from comparison of the data of example 1 and comparative example 1 in table 1, the hardness and impact strength of the pig iron pan prepared in the present application are improved as compared to those of the existing pig iron pan, thereby extending the life span of the pig iron pan of the present application.
According to the comparison of the data of the example 1 and the comparative examples 2 to 3 in the table 1, the hardness and the impact resistance of the pig iron pan sample are simultaneously improved by permeating the metal titanium and the metal manganese into the pig iron in a specific proportion, and the result proves that the defect of loose structure of the pig iron can be better overcome after the metal titanium and the metal manganese are added in the specific proportion, so that the compactness of the pig iron pan obtained by smelting the pig iron as the main raw material is greatly improved, and the pig iron pan can bear multiple times of collision without deformation and breakage.
According to the comparison of the data of example 1 and comparative examples 4 to 5 in table 1, the melting temperature after titanium addition is controlled, so that the infiltration effect of metallic titanium in pig iron is better, the hardness and the impact strength of a pig iron pan are improved, and the service life of the pig iron pan is prolonged.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (9)
1. The utility model provides a high strength pig iron pot which characterized in that: the feed is prepared from the following components in parts by mass:
100 portions of pig iron
1-4 parts of manganese metal
0.2 to 0.6 portion of metallic titanium
0 to 0.4 portion of other metals.
2. The high strength pig iron pan of claim 1, wherein: the other metal includes one or both of zinc and selenium.
3. The high strength pig iron pan of claim 2, wherein: the addition amount of the zinc is 0.01-0.2 part, and the addition amount of the selenium is 0.03-0.2 part.
4. A preparation process of a high-strength pig iron pan is characterized by comprising the following steps: the method comprises the following steps:
step (1), mixing the pig iron blocks and the metal titanium under the protection of inert gas for smelting, wherein the smelting temperature is 1800-2000-;
step (2), pouring molten iron into a mold, and then carrying out die-casting molding to obtain a high-strength pig iron pan;
if other metals are required to be added, after the molten iron is poured into the mold, when the temperature of the molten iron is reduced to 1150-plus-1200 ℃, the other metals are added and stirred uniformly.
5. The process for preparing a high-strength pig iron pan according to claim 4, wherein: and (3) after cooling the high-strength pig iron pot prepared in the step (2), heating to 400-500 ℃, preserving the heat for 2-3h, and naturally cooling to obtain the refined high-strength pig iron pot.
6. The process for preparing a high-strength pig iron pan according to claim 4, wherein: the heating rate of the high-strength pig iron pot prepared in the step (2) is 5-10 ℃/min.
7. The process for preparing a high-strength pig iron pan according to claim 4, wherein: in the step (1), after the metal manganese is added, the stirring speed is 20-60 r/min.
8. The process for preparing a high-strength pig iron pan according to claim 4, wherein: in the step (2), the other metals are selenium and zinc.
9. The process for preparing a high-strength pig iron pan according to claim 8, wherein: in the step (2), selenium and/or zinc are mixed and preheated to 600-800 ℃, and then the mixture is added into molten iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110735555.0A CN113481423A (en) | 2021-06-30 | 2021-06-30 | High-strength pig iron pan and preparation process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110735555.0A CN113481423A (en) | 2021-06-30 | 2021-06-30 | High-strength pig iron pan and preparation process thereof |
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| CN113481423A true CN113481423A (en) | 2021-10-08 |
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| CN202110735555.0A Pending CN113481423A (en) | 2021-06-30 | 2021-06-30 | High-strength pig iron pan and preparation process thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6030735B2 (en) * | 1979-10-30 | 1985-07-18 | 日立金属株式会社 | Spheroidal graphite cast iron and its manufacturing method |
| CN1054620A (en) * | 1991-04-22 | 1991-09-18 | 陈定权 | Selenium germanium iron alloy pan and manufacture method thereof |
| CN1103671A (en) * | 1993-12-06 | 1995-06-14 | 湖北省宜城县溶解乙炔厂 | Health-care iron pan containing trace elements and manufacturing method thereof |
| CN105671235A (en) * | 2016-04-11 | 2016-06-15 | 佛山市旲桥科技有限公司 | Casting iron pan and casting process thereof |
| CN109402528A (en) * | 2018-11-06 | 2019-03-01 | 浙江炊大王炊具有限公司 | A kind of Se alloy and its manufacturing method |
-
2021
- 2021-06-30 CN CN202110735555.0A patent/CN113481423A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6030735B2 (en) * | 1979-10-30 | 1985-07-18 | 日立金属株式会社 | Spheroidal graphite cast iron and its manufacturing method |
| CN1054620A (en) * | 1991-04-22 | 1991-09-18 | 陈定权 | Selenium germanium iron alloy pan and manufacture method thereof |
| CN1103671A (en) * | 1993-12-06 | 1995-06-14 | 湖北省宜城县溶解乙炔厂 | Health-care iron pan containing trace elements and manufacturing method thereof |
| CN105671235A (en) * | 2016-04-11 | 2016-06-15 | 佛山市旲桥科技有限公司 | Casting iron pan and casting process thereof |
| CN109402528A (en) * | 2018-11-06 | 2019-03-01 | 浙江炊大王炊具有限公司 | A kind of Se alloy and its manufacturing method |
Non-Patent Citations (2)
| Title |
|---|
| 王向东等: "《幼儿教师自然科学教程（物理化学一分册）》", 31 August 2015, 复旦大学出版社 * |
| 石油工业部供应局《石油工业常用材料手册》编写组: "《石油工业常用材料手册 第一册》", 31 March 1983, 石油工业出版社 * |
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