Enamelled and anodised culinary item and method for producing one such article

A technology for cooking utensils and enamels, which is applied to special materials for cooking utensils, electrolytic coatings, surface reaction electrolytic coatings, etc., can solve the problems of difficulty in obtaining, high installation and use costs, and inability to fully resist the erosion of dishwasher detergents, etc. To achieve the effect of reducing costs

Inactive Publication Date: 2011-03-16
SEB SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, experiments have confirmed that the cooking utensils obtained by the above method are not sufficiently resistant to attack by dishwasher detergents
[0014] Furthermore, it is difficult to obtain an embodiment of an enamel-plated cookware according to the method of US Pat. Installation and use costs

Method used

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  • Enamelled and anodised culinary item and method for producing one such article
  • Enamelled and anodised culinary item and method for producing one such article
  • Enamelled and anodised culinary item and method for producing one such article

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0118] The water-free paste PA1 according to the invention was produced from the enamel glass F1 according to the invention, the compositions of which are given in Table 1 below.

[0119] For comparison, two control anhydrous pastes PA01 and PA02 were also prepared from control enamel glasses F01 and F02 respectively, the composition of which is given in Table 1 below. Enamel glasses F01 and F02 are also referred to as "controlled" because, when formed in the form of an anhydrous paste, they exhibit a molten compositional content (V 2 o 5 or PbO).

[0120] Table 1

[0121]

[0122] Total

100

100

100

[0123] The given contents are percentages by weight relative to the weight of the glass.

[0124] Glasses F1 , F01 and F02 and PA1 , PA01 and PA02 respectively in the form of anhydrous pastes were formed by the following steps:

[0125] To 100 parts by weight of enamel glass (F1, or F01 or F02) add

[0126] 20 parts by weight of black iron ...

example 2

[0141] A slip was prepared from the enamel glass F1 according to the invention by mixing 100 parts by weight of glass A1 , 56 parts by weight of water, 3.5 parts by weight of boric acid, and 0.8% of potassium carbonate.

[0142] In Table 4 the composition of glass F1 formed in the form of paint BA1 and water-free paste PA1 is summarized.

[0143] Table 4

[0144]

[0145] The water-free paste PA1 and coating BA1 according to the invention were applied in a single layer by screen printing on an aluminum substrate.

[0146] After the paste PA1 and paint BA1 were dried at 80° C. for 30 seconds, the pastes were dried in an oven at 560° C. for 10 minutes to form vitrified enamels EM1 and EM03 in Example 1, respectively. These vitrified enamels EM1 and EM03 were then subjected to the same acid resistance evaluation test as in Example 1. The results are given in Table 5.

[0147] table 5

[0148]

[0149] From the comparison of the acid resistance tests of the enamel EM03 w...

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Abstract

The invention relates to a culinary item, including a hollow bowl defining a bottom and a lateral wall rising from the bottom. The bowl is provided with an interior surface for accommodating food and an external surface placed at one side of the heat source. A plate includes aluminum or aluminum alloy sheet, which is characterized in that at least the external surface of the lateral wall is made of electroplated aluminum or electroplated aluminum alloy; at least part of the external surface of the bottom is plated with an enamel layer with approximately uniform thickness (wherein, the mean value is 15-40mum, and the bias is at most 10% of the mean thickness value), and the enamel coating is provided with a melting component, selected from PbO, Bi2O3 and V2O5, whose weight percentage is 1.5-9% of the total weight of the enamel coating.

Description

technical field [0001] The present invention relates to enamel electroplated cooking utensils and methods for the manufacture of the utensils. Background technique [0002] The cooking utensil typically has a hollow bowl that defines a bottom and side walls, and has an inner surface for containing food and an outer surface for placement on one side of a heat source. At least one surface of the side wall of the cooking appliance may be plated with an electroplating layer. [0003] This galvanic layer enables shallow hardening of the coating surface, thereby making it shock-resistant and easy to clean. In addition, the electroplating gives these utensils a slate-like appearance, visually soft to the touch. The outer surface thus has a cool appearance compared to smooth aluminum or aluminum alloy surfaces. [0004] The cooking utensil described above may also have an enamel layer on its outer surface, which gives the plated surface an aesthetic finish, hardness and wear resi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A47J36/02
CPCA47J36/02C25D11/08C25D11/243
Inventor 帕斯卡尔·居勒瑞金·弗伦柯斯·勃拉塞特法布里克·帕朗特皮埃尔-让·米勒尔
Owner SEB SA
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