WO2020050801A2

WO2020050801A2 - Glass product production method suitable for inductive heating

Info

Publication number: WO2020050801A2
Application number: PCT/TR2019/050492
Authority: WO
Inventors: Osman Haluk ERDEM; Hakan ORHON; Özgür Evren BALCI; Anil ÖZEN; Ahmet Bilal ERDOĞAN
Original assignee: Turkiye Sise Ve Cam Fabrikalari A.S.
Priority date: 2018-06-28
Filing date: 2019-06-24
Publication date: 2020-03-12
Also published as: WO2020050801A3

Abstract

The invention subject to the application is a glass product production method suitable for inductive heating, developed in order to provide inductive heating features for products produced from glass which do not have magnetic characteristics.

Description

GLASS PRODUCT PRODUCTI ON METHOD SUI TABLE FOR I NDUCTI VE HEATI NG

Technical Field of the I nvention

Known State of the Art ( Prior Art)

I n the known state of the art, generally gas stoves are used in houses. The cooking pots used in such stoves are produced from materials that are durable against high temperatures when being subjected to direct flame.

However within the scope of the ongoing global energy eff iciency projects, such stoves are being replaced by induction stoves. The induction heating technique is basically based on the principle of subjecting a material having magnetic conductivity to a high power electromagnetic f ield.

Containers that are suitable for gas stoves such as cooking pots and pans that are produced mostly from metal materials and that are used nowadays can also be used on induction stoves, however cooking pots that do not have magnetic conductivity cannot be used on induction ovens. All cooking pots produced from glass can be classif ied in this category and they cannot be used on induction stoves.

Brief Description of the I nvention and its Aims

According to the invention subject to the application, the desired sections of any kind of cooking pots made of glass or any kind of glass products that are desired to be subjected to inductive heating can be made suitable for inductive heating by being coated with paint that has magnetic conductivity. It has been aimed by the development of the glass product production method suitable for inductive heating to ensure that all kinds of desired glass products can be produced to be suitable for inductive heating and that they can be used induction stoves.

Definition of the Figures of the I nvention

The f igures that have been used in order to further describe the glass product production method suitable for inductive heating developed by means of this invention have been described below.

Figure 1 : Schematic view of the production method subject to the invention.

Definitions of the parts/ aspects/ sections forming the invention

The parts and sections provided in the figures that have been prepared in order to further describe the glass product production method suitable for inductive heating developed by means of the invention have each been numbered and the references of each number has been listed below.

1 . Glass product

2. Print surface

3. Print plate

4. Silicon tampon

5. Magnetically conductive paint

6. Glass product suitable for inductive heating

Detailed Description of the I nvention

A two staged production method for producing any kind of product ( 1 ) made of glass in order to obtain a glass product (6) suitable for inductive heating wherein in order to coat any desired surface (2) of said product with magnetically conductive paint (5) ; the following process steps are carried out in order ensure that in f irst stage of the method the paint (5) having magnetic conductivity is formed on a print plate (3) using a serigraphy technique and in the second stage that said paint (5) is transferred onto a glass product (1 ) via a silicon buffer (4) which is flexible and which can change shape;

A. The paint (5) is transferred via a serigraphy technique, onto print plates (3) having a temperature between 35-40 °C, that is made of RTV2 based silicon material, by means of templates prepared with 200-300 mesh steel sieves, using a squeegee having a shore hardness degree of 75 shore A produced from polyurethane material.

B. The print plate (3) is inserted under a silicon buffer (4) ,

• C. The RTV2 based, silicon buffer (4) having a temperature between 25-30 °C, shaped like a mushroom , having a shore hardness degree of 40 shore 00 comes down at a speed of 1200 mm/s and retrieves the paint (5) on the print plate (3) and comes back up at the same speed,

• D. The print plate (3) is taken out of the space between the silicon buffer (4) and the glass product ( 1 ) and this space is left vacant,

• E. The silicon buffer (4) comes down and transfers the paint (5) onto the glass product ( 1 ) having a temperature between 18-20 °C and following this said silicon buffer moves away from the glass product ( 1 ) .

By means of the method subject to the invention any kind of glass product ( 1 ) will be turned into a glass product (6) suitable for inductive heating.

The magnetically conductive paint (5) can not only be applied to the bottom section of the glass product ( 1 ) but it can also be applied to all other areas of the glass product ( 1 ) according to different embodiments of the invention.

The magnetically conductive paint (5) can cover the entire area that it is applied to on the glass product ( 1 ) and it can also be applied to form decorative patterns on the glass product ( 1 ) .

I n order for the method subject to the invention to be carried out, the temperature of the print plate (3) onto which the magnetically conductive paint (5) is transferred needs to be at the highest degree, the temperature of the silicon buffer (4) which receives the formed pattern and transfers it onto the glass product ( 1 ) needs to be at a moderate temperature, and the temperature of the print surface (2) of the glass product ( 1 ) which is the f inal surface needs to be at the lowest degree. The temperature values mentioned herein, def ines the values c the temperatures of the print plate (3) , the silicon buffer (4) and the print surface (2) i comparison to each other.

Claims

CLAI MS

1 . A two staged production method characterized by said method being used for producing any kind of product ( 1 ) made of glass in order to obtain a glass product (6) suitable for inductive heating wherein in order to coat any desired surface (2) of said product with magnetically conductive paint (5) ; the following process steps are carried out in order ensure that in f irst stage of the method the paint (5) having magnetic conductivity is formed on a print plate (3) using a serigraphy technique and in the second stage that said paint (5) is transferred onto a glass product (1 ) via a silicon buffer (4) which is flexible and which can change shape;

B. The print plate (3) is inserted under a silicon buffer (4) ,

C. The RTV2 based, silicon buffer (4) having a temperature between 25-30 °C, shaped like a mushroom , having a shore hardness degree of 40 shore 00 comes down at a speed of 1200 mm/s and retrieves the paint (5) on the print plate (3) and comes back up at the same speed,

D. The print plate (3) is taken out of the space between the silicon buffer (4) and the glass product (1 ) and this space is left vacant,

E. The silicon buffer (4) comes down and transfers the paint (5) onto the glass product ( 1 ) having a temperature between 18-20 °C and following this said silicon buffer moves away from the glass product ( 1 ) .

2. A production method according to Claim 1 , characterized by the magnetically conductive paint (5) being applied only onto the base section of the glass product ( 1 ) .

3. A production method according to Claim 1 , characterized by the magnetically conductive paint (5) being applied to other areas of the glass product (1 ) apart from the base according to different embodiments of the invention.

4. A production method according to Claim 1 , characterized by the magnetically conductive paint (5) being applied onto the glass product (1 ) such that it covers the entire application area.

5. A production method according to Claim 1 , characterized by the magnetically conductive paint (5) being applied onto the glass product ( 1 ) such that it forms decorative patterns.

6. A production method according to Claim 1 , characterized in that in order for the method subject to the invention to be carried out, the temperature of the print plate (3) onto which the magnetically conductive paint (5) is transferred needs to be at the highest degree, the temperature of the silicon buffer (4) which receives the formed pattern and transfers it onto the glass product (1 ) needs to be at a moderate temperature, and the temperature of the print surface (2) of the glass product (1 ) which is the f inal surface needs to be at the lowest degree; wherein the temperature values mentioned herein, def ine the values of the temperatures of the print plate (3) , the silicon buffer (4) and the print surface (2) in comparison to each other.

7. Glass product (6) suitable for inductive heating produced according to the method described in claim 1 .