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Iron pot rich in various trace elements and preparation method thereof

A technology of trace elements and iron pots, applied in the direction of special materials for cooking utensils, etc., can solve the problems of waste of selenium raw materials, unsatisfactory selenium recovery rate, etc., and achieve the effect of ensuring the release speed

Active Publication Date: 2021-08-10
WUHAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent application CN 88102637.9 discloses a method of adding selenium to molten steel, which is to press selenium powder and other metal powders into blocks and then add them to molten steel. However, selenium is easily gasified at high temperatures, and the recovery rate of selenium is not high. Ideal, wastes selenium raw material
[0007] However, none of the iron pots in the above patent applications can achieve long-term sustained release of various trace elements

Method used

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  • Iron pot rich in various trace elements and preparation method thereof
  • Iron pot rich in various trace elements and preparation method thereof
  • Iron pot rich in various trace elements and preparation method thereof

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preparation example Construction

[0060] In the embodiment of the present invention, the preparation method of the iron pot rich in various trace elements includes:

[0061] (1) Using a metal mold with adjustable thickness, pig iron, manganese-selenium alloy, iron-zinc alloy, iron-copper alloy, and iron-molybdenum alloy are mixed and smelted according to the required weight ratio of each layer to obtain molten iron with different alloying elements. After obtaining each layer During the process of making molten iron, ensure uniform mixing and stirring so that each element is evenly distributed in each layer; take out the furnace at 1600°C and cast at 1490°C; cast the molten iron containing each layer in turn, and the casting sequence is: the fourth layer, the second The third floor, the second floor and the first floor;

[0062] After casting the fourth layer, when the fourth layer is cooled to 400-600°C, start casting the third layer;

[0063] After casting the third layer, when both the fourth and third laye...

Embodiment 1

[0070] This embodiment provides an iron pan rich in various trace elements.

[0071] The fourth layer uses 428.9 grams of pig iron, 17.0 grams of manganese-selenium alloy, 22.8 grams of iron-zinc alloy, 18.8 grams of iron-copper alloy, and 12.5 grams of iron-molybdenum alloy; the third layer uses 458.2 grams of pig iron, 8.5 grams of manganese-selenium alloy, iron-zinc alloy 11.4 grams of alloy, 9.4 grams of iron-copper alloy, 12.5 grams of iron-molybdenum alloy; the second layer uses 479.2 grams of pig iron, 4.2 grams of manganese-selenium alloy, 5.7 grams of iron-zinc alloy, 4.7 grams of iron-copper alloy, and 6.2 grams of iron-molybdenum alloy; One layer, 500 grams of pig iron.

[0072] That is to say:

[0073] In terms of mass percentage, the composition of the first layer is:

[0074] C: 3.25%-3.35%, Si: 2.1%-2.4%, Mn: 0.6%-0.8%, S≤0.12%, P≤0.15%, the balance is Fe;

[0075] In terms of mass percentage, the composition of the second layer is:

[0076] C: 3.1148%-3.210...

Embodiment 2

[0082] This embodiment provides an iron pan rich in various trace elements.

[0083] The fourth layer uses 438.8 grams of pig iron, 14.8 grams of manganese-selenium alloy, 20.0 grams of iron-zinc alloy, 16.4 grams of iron-copper alloy, and 10.0 grams of iron-molybdenum alloy; the third layer uses 466.6 grams of pig iron, 6.8 grams of manganese-selenium alloy, iron-zinc alloy 9.1 grams of alloy, 7.5 grams of iron-copper alloy, and 10.0 grams of iron-molybdenum alloy; the second layer adopts 483.2 grams of pig iron, 3.4 grams of manganese-selenium alloy, 4.6 grams of iron-zinc alloy, 3.8 grams of iron-copper alloy, and 5.0 grams of iron-molybdenum alloy; One layer, 500 grams of pig iron.

[0084] That is to say:

[0085] In terms of mass percentage, the composition of the first layer is:

[0086] C: 3.25%-3.35%, Si: 2.1%-2.4%, Mn: 0.6%-0.8%, S≤0.12%, P≤0.15%, the balance is Fe;

[0087] In terms of mass percentage, the composition of the second layer is:

[0088] C: 3.1408%-...

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Abstract

The invention belongs to the field of cooking utensils, and discloses an iron pan rich in various trace elements and a preparation method thereof. The iron pot rich in various trace elements comprises a first layer, a second layer, a third layer and a fourth layer which are sequentially arranged from the inside to the outside. The preparation method includes: (1) adopting a metal mold with adjustable thickness, sequentially casting molten iron containing various layers, and the casting sequence is: the fourth layer, the third layer, the second layer and the first layer; (2) waiting for the iron After the pot body is cooled, demoulding is carried out. The present invention adopts the design of multi-layer gradient iron pots with different contents of various trace elements. usage time.

Description

technical field [0001] The invention belongs to the field of cooking utensils, and more specifically relates to an iron pan rich in various trace elements and a preparation method thereof. Background technique [0002] In people's daily life, iron pots, aluminum pots and stainless steel pots are the main pots used in daily life. With the improvement of people's living standards, people pay more and more attention to health. Long-term use of aluminum pots will cause the brain to decline and age, which is not conducive to human health. Therefore, aluminum pans are often used as the bottom of non-stick pans, and the inner surface of the pan is coated with a non-stick coating. The temperature of non-stick pans should not be too high, which is not suitable for Chinese cooking habits in our country. Therefore, most Chinese people like to use iron pans. Iron pots made of pig iron will release iron elements during use, which is a trace element that is beneficial to the human body...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C37/10A47J36/02
CPCA47J36/02C22C37/10
Inventor 李菊英梅青松张国栋
Owner WUHAN POLYTECHNIC UNIVERSITY
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