Top plate for cooking appliance and process for producing the same

A cooker and panel technology, which is applied in the field of cooker panels, can solve problems such as unsatisfactory heat resistance, and achieve the effect of small chromaticity change and good heat resistance

Active Publication Date: 2010-09-29
NIPPON ELECTRIC GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The panel for cooking appliances proposed here is intended to be a panel that can be colored in various colors and has excellent heat resistance, but it cannot satisfy the heat resistance under stricter standards.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Hereinafter, the present invention will be described based on specific examples, but the present invention is not limited to the following examples.

[0025] [Production of panels for cooking appliances]

[0026] As the glass substrate, crystallized glass ("Neoceram N-0" produced by NEC Glass Co., Ltd.: the average linear thermal expansion coefficient at 30°C to 500°C is 0×10 -7 / °C, thickness 4mm). On this glass substrate, using the film materials shown in Tables 1 to 4, an interference layer, a light-shielding layer, and a protective layer were respectively formed by sputtering in this order to have the thicknesses shown in Tables 1 to 4. However, the film-forming atmosphere when each layer was formed by the sputtering method was the gas atmosphere shown in Tables 1-4. However, % of the gas atmosphere conditions shown in each table|surface is volume %.

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PUM

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Abstract

A top plate for cooking appliances is obtained which can be colored in various tints and has satisfactory heat resistance. The top plate for cooking appliances, which is to be disposed over a cooking appliance, is characterized by comprising: a glass base; an interference layer which has been disposed on one side of the glass base and comprises silicon nitride or aluminum nitride; a light-shutting layer which has been disposed on the interference layer and comprises titanium or niobium; and a protective layer which has been disposed on the light-shutting layer and comprises at least one member selected among silicon nitride, zirconium nitride, titanium nitride, tantalum nitride, tungsten nitride, and niobium nitride. It is further characterized in that the interference layer and the protective layer each is a thin film formed by the physical vapor deposition method in a gas atmosphere having an N2 gas content of 90-100 vol.%.

Description

technical field [0001] The present invention relates to a cooker panel arranged on an upper portion of an electromagnetic heating (IH) cooker, an infrared heating cooker, a gas cooker, and the like, and a method for manufacturing the same. Background technique [0002] Materials such as glass and ceramics with low thermal expansion can be used as panels used in electromagnetic heating cookers and infrared heating cookers. In addition, glass and ceramic materials with low thermal expansion have also begun to be used in gas cookers for the sake of aesthetics and ease of cleaning. In the panel using glass or the like, a metal film such as a Ti film is formed on the substrate in order to visually shield the internal cooking device and temperature sensor, etc., to make the panel beautiful with metallic luster or the like. [0003] However, a panel using a Ti film as a light-shielding layer cannot be colored in a color other than the silver tone of the Ti film of the protective l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C15/10C03C17/09C03C17/22C03C17/36H05B6/12
CPCC03C17/3649C03C2218/15C03C17/36C03C17/3618C03C17/3626C23C14/0015C23C14/0036C23C14/0617C23C14/0652
Inventor 池上耕司
Owner NIPPON ELECTRIC GLASS CO LTD
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