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Enamel composition, method for preparing an enamel composition, and cooking appliance

A technology for cooking utensils and compositions, applied in the direction of kitchen utensils, household utensils, special materials for cooking utensils, etc., can solve the problems of durability deterioration, inability to easily remove oil pollutants, consumption and the like

Active Publication Date: 2020-09-01
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, conventional enamel compositions consume a lot of energy because conventional enamel compositions can only be cleaned when heated (pyrolyzed) at a high temperature of 450 to 500° C. for about 4 hours
Furthermore, oily contaminants such as cattle, hog and poultry oils cannot be easily removed in the case of conventional enamel compositions
In addition, enamel compositions should not be denatured and damaged at high temperatures of 450 to 500°C, but conventional enamel compositions have a problem of deterioration in durability at high temperatures

Method used

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  • Enamel composition, method for preparing an enamel composition, and cooking appliance
  • Enamel composition, method for preparing an enamel composition, and cooking appliance
  • Enamel composition, method for preparing an enamel composition, and cooking appliance

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] Preparation method of enamel composition

[0024] The preparation method 100 of the enamel composition of the embodiment may include: providing the above-mentioned enamel composition material (110); melting the enamel composition material (120); and quenching the molten enamel composition material (130), thereby forming an enamel combination. The materials can be mixed well and then melted. The material can be melted at 1200 to 1400°C. Alternatively, the material may be melted for 1 to 2 hours. Then, for example, the molten material may be quenched by passing it through quenching rolls using a cooler. As a result, an enamel composition can be formed.

[0025] cooking utensils

[0026] The enamel composition of the embodiments may be applied to a surface of a target object, thereby coating the enamel composition. The target object can be part or all of a metal plate, glass plate, or cooking utensil. The enamel composition may be coated on the inner surface of ...

Embodiment

[0034] Preparation of enamel composition

[0035] Enamel compositions were prepared with the compositions shown in Table 1 below. The raw materials of the ingredients were thoroughly blended in a V-blender for 3 hours. In this case, ammonium dihydrogen phosphate (NH 4 h 2 PO 4 ) as phosphorus pentoxide (P 2 o 5 ) raw material, sodium carbonate (Na 2 CO 3 ), potassium carbonate (K 2 CO 3 ) and lithium carbonate (Li 2 CO 3 ) respectively used as Na 2 O, K 2 O and Li 2 O raw material. The blended material was thoroughly melted at 1300° C. for 1.5 hours, and then quenched in quenching rolls to obtain cullet.

[0036] The primary particle size of the cullet obtained through the above process is controlled using a grinder (ball mill), then, the resulting cullet is ground for about 5 hours using a jet mill, and then passed through a 325-mesh sieve (ASTM C285-88) to control its particle size. 45 μm or less to prepare cullet (powder).

[0037] Table 1

[0038]

...

experiment example

[0042] The performance of the samples of Examples and Comparative Examples was evaluated as follows, and the results are shown in Table 4.

[0043] 1. Cleanliness of chicken fat pollutants

[0044] Use a brush to spread 1g of chicken fat as a pollutant evenly and thinly on the surface of the sample in which the metal substrate (100(mm)×100(mm)) has been coated with the enamel composition, and then apply the pollutant A sample of the object is placed in a thermostat at 250 to 290° C. for 1 hour to solidify the contamination. After the pollutants were solidified, the obtained samples were cooled naturally, and the pollutants were burned at 400 °C for 1 hour. Then, the hardened contamination was wiped back and forth (one back and forth) with a scouring pad in a frying pan soaked in water at room temperature with a force of 3 kgf or less. Use a flat rod with a base diameter of 5 cm to homogenize the swabbed portion on the surface of the contaminated sample.

[0045] 2. Cleanlin...

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Abstract

An enamel composition, a method for preparing an enamel composition, and a cooking appliance are provided. The enamel composition may include phosphorus pentoxide (P2O5) at 15 to 50 wt%; silicon dioxide (SiO2) at 10 to 20 wt%; boron oxide (B2O3) at 1 to 15 wt%; one or more of lithium oxide (Li2O), sodium oxide (Na2O), or potassium oxide (K2O) at 5 to 20 wt%; one or more of sodium fluoride (NaF), calcium fluoride (CaF2), or aluminum fluoride (AlF3) at 1 to 5 wt%; one or more of magnesium oxide (MgO), barium oxide (BaO), or calcium oxide (CaO) at 1 to 35 wt%; and one or more of titanium dioxide(TiO2), cerium dioxide (CeO2), molybdenum trioxide (MoO3), bismuth oxide (Bi2O3), or copper oxide (CuO) at 10 to 25 wt%, such that a heating time required for cleaning may be shortened and oil contaminants may be completely removed.

Description

technical field [0001] Disclosed herein are enamel compositions, methods of making enamel compositions, and cooking utensils. Background technique [0002] Enamel is a material made by applying a vitreous glaze to the surface of a metal plate. Common enamel is used in cooking appliances such as microwave ovens and ovens. For example, cooking appliances such as electric ovens and gas ovens are appliances that cook food or other items (hereinafter collectively referred to as "food") using a heat source. Since pollutants generated during cooking adhere to the inner wall of the cavity of the cooking appliance, it is necessary to clean the inner wall of the cavity. In this case, the enamel applied to the inner wall surface of the cavity of the cooking utensil helps to remove the contaminants adhering to the cooking utensil. Generally, it is known that a pyrolysis method of burning pollutants to ashes at a high temperature is a technique for easily cleaning the inner wall of a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/04C03C8/02C23D5/04
CPCC03C8/04C03C8/02C23D5/04C03C2207/04C03C3/062C03C3/064C03C3/066C03C3/068C03C4/20C03C8/08C03C1/00F24C15/005C03C8/00C23D5/00H05B6/6402C03C2207/02A47J36/025A47J36/04C03C17/04C03C2218/17C23D1/00C23D5/02F24C15/02
Inventor 具东建金辰坤金英锡
Owner LG ELECTRONICS INC