阅读说明：本技术 一种用于电炉的发热板及其制备方法 (Heating plate for electric furnace and preparation method thereof ) 是由 张海 于 2019-11-08 设计创作，主要内容包括：本发明公开了一种用于电炉的发热板及其制备方法,包括有炉体和炉体内部的隔热层,以及设置于炉体外侧部的加热控制器,在所述隔热层上设置有发热板,所述发热板包括有导电基板层、发热膜层和绝缘耐磨层,在所述隔热层的底面及内侧面均设有发热板,所述发热板与加热控制器电连接。采用本发明所述方法制备的发热板,用于炉体内部的隔热层上,利用发热板直接进行加热,其热效率高,具有升温速度快,恒温性能好,从而能保证炉体内不同部位温度的均匀一致性,还能节省能耗,降低使用成本。具有结构简单,安装操作方便,其安全性能高,实用性强,特别适合推广应用。(The invention discloses a heating plate for an electric furnace and a preparation method thereof, and the heating plate comprises a furnace body, a heat insulation layer inside the furnace body and a heating controller arranged at the outer side part of the furnace body, wherein the heating plate is arranged on the heat insulation layer, the heating plate comprises a conductive substrate layer, a heating film layer and an insulating wear-resistant layer, the heating plate is arranged on the bottom surface and the inner side surface of the heat insulation layer, and the heating plate is electrically connected with the heating controller. The heating plate prepared by the method is used on a heat insulation layer in a furnace body, and is directly used for heating, so that the heating plate has high thermal efficiency, high temperature rise speed and good constant temperature performance, thereby ensuring the uniformity of the temperature of different parts in the furnace body, saving energy consumption and reducing use cost. The safety device has the advantages of simple structure, convenience in installation and operation, high safety performance and strong practicability, and is particularly suitable for popularization and application.)

1. The utility model provides a board that generates heat for electric stove, including furnace body (1) and furnace body (1) inside insulating layer (2) to and set up in heating controller (3) of furnace body (1) outside portion, its characterized in that: be equipped with heating plate (4) on insulating layer (2), heating plate (4) are including electrically conductive base plate layer (41), generate heat rete (42) and insulating wearing layer (43) the bottom surface and the medial surface of insulating layer (2) all are equipped with heating plate (4), heating plate (4) are connected with heating controller (3) electricity.

2. A heat generating plate for an electric furnace as set forth in claim 1, wherein: heating plate (4) are by electrically conductive base plate layer (41), generate heat rete (42) and insulating wearing layer (43) complex structure as an organic whole, generate heat rete (42) set up in the upper and lower both sides face on electrically conductive base plate layer (41), insulating wearing layer (43) set up in the lateral surface of generating heat rete (42), and the both sides limit of heating plate (4) is equipped with electrode copper sheet (44), electrically conductive base plate layer (41) is connected with heating controller (3) electricity through electrode copper sheet (44).

3. The manufacturing method of a heat generating plate for an electric furnace as claimed in claim 1 or 2, characterized in that the manufacturing method specifically comprises the steps of:

(1) and (3) pressure forming: cutting the conductive substrate layer (41), the heating film layer (42) and the insulating wear-resistant layer (43) into preset sizes, sequentially adding the heating film layer (42) and the insulating wear-resistant layer (43) on one side, keeping the layers smooth, simultaneously fixing the layers by using instant adhesive, putting the fixed layers into a compression molding device, and sequentially preheating and pressurizing one side of the compression molding device, pressurizing at constant temperature, cooling and pressurizing; processing the other side by the same procedure to obtain a blank heating plate;

(2) surface treatment: placing the obtained blank heating plate in a curing room for curing for 2-3 days, filling the surface groove pieces of the blank heating plate after curing treatment by adopting high-temperature-resistant glue, and polishing and flattening after drying to obtain a semi-finished product heating plate;

(3) setting an electrode copper sheet: presetting the size of the electrode copper sheet (44), connecting the polished semi-finished heating plate into the electrode copper sheet (44), wrapping the electrode copper sheet (44) on two sides of the heating plate to form electric connection with the conductive substrate layer (41), and finally testing to be qualified to obtain the heating plate.

4. The production method according to claim 3, characterized in that: in the step (1) of pressure forming, the cyanoacrylate instant adhesive is adopted as the instant adhesive.

5. The production method according to claim 3, characterized in that: in the step (1) of pressure forming, the temperature of constant-temperature pressurization is 220-230 ℃, and the pressure applied by the constant-temperature pressurization is 15-16 MP.

6. The production method according to claim 3, characterized in that: in the surface treatment process in the step (2), the curing environment of the curing chamber is controlled to be 40-50 ℃ and the humidity is controlled to be 60-70%.

7. The production method according to claim 3, characterized in that: in the step (2) of surface treatment, ZS-1071 high-temperature resistant inorganic glue is adopted as the high-temperature resistant glue.

Technical Field

The invention relates to the technical field of electric furnace equipment, in particular to a heating plate for an electric furnace and a preparation method thereof.

Background

The electric furnace is a device for supplying heat by utilizing an electrothermal effect, is common heating equipment for testing and production, generates heat after being electrified, and performs contact heating on a heated body, and has wide application in scientific research units and industrial and mining enterprises. In the prior art, a heating element of an electric furnace is positioned in an electric furnace lining, when the electric furnace works, after the heating element heats, heat needs to be transferred through the furnace lining, so that the temperature in a hearth rises slowly, when the heating is stopped, the temperature is reduced slowly, the temperature in the hearth is easy to generate an unbalanced phenomenon, the temperature rising speed is low, and the constant temperature performance is poor; meanwhile, because the furnace lining of the existing electric furnace is generally made of refractory materials, the refractory materials are easy to fall off powder and slag after long-term use, and the generated slag is easy to pollute a workpiece to be heated. In addition, because the heating element in the existing electric furnace needs to be fixed firstly, in the long-term use process, the resistance wire in the heating element is easy to melt under the high-temperature condition, and the heating element needs to be replaced frequently, so that the electric furnace has many faults, the safety is low, and the electric resource is wasted.

Disclosure of Invention

The invention aims to solve the technical problems in the background technology and provides a heating device which is simple in structure, convenient to operate and use, high in heating rate, high in heat efficiency and good in constant temperature performance, in particular to a heating plate for an electric furnace and a preparation method thereof.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a board that generates heat for electric stove, is including the inside insulating layer of furnace body and furnace body to and set up in the heating controller of furnace body outside portion be equipped with the board that generates heat on the insulating layer, the board that generates heat is including electrically conductive base plate layer, the rete and the insulating wearing layer of generating heat the bottom surface and the medial surface of insulating layer all are equipped with the board that generates heat, the board that generates heat is connected with the heating controller electricity.

Furthermore, the heating plate for the electric furnace is characterized in that the heating plate is of an integrated structure formed by combining a conductive substrate layer, a heating film layer and an insulating wear-resistant layer, the heating film layer is arranged on the upper side surface and the lower side surface of the conductive substrate layer, the insulating wear-resistant layer is arranged on the outer side surface of the heating film layer, electrode copper sheets are arranged on two side edges of the heating plate, and the conductive substrate layer is electrically connected with a heating controller through the electrode copper sheets.

The invention also discloses a preparation method of the heating plate for the electric furnace, which specifically comprises the following steps:

(1) and (3) pressure forming: cutting the conductive substrate layer, the heating film layer and the insulating wear-resistant layer into preset sizes, sequentially adding the heating film layer and the insulating wear-resistant layer on one side, keeping the layers smooth, simultaneously fixing the layers by using instant adhesive, putting the fixed layers into a compression molding device, and sequentially preheating and pressurizing one side of the compression molding device, pressurizing at constant temperature, cooling and pressurizing; processing the other side by the same procedure to obtain a blank heating plate;

(2) surface treatment: placing the obtained blank heating plate in a curing room for curing for 2-3 days, filling the surface groove pieces of the blank heating plate after curing treatment by adopting high-temperature-resistant glue, and polishing and flattening after drying to obtain a semi-finished product heating plate;

(3) setting an electrode copper sheet: presetting the size of an electrode copper sheet in advance, connecting a semi-finished heating plate obtained after polishing into the electrode copper sheet, enabling the electrode copper sheet to be wrapped on two side edges of the heating plate to be electrically connected with a conductive substrate layer, and finally obtaining the heating plate after the testing is qualified.

Further, according to the preparation method of the heating plate for the electric furnace, in the step (1), during the pressure forming process, cyanoacrylate instant adhesive is adopted as the instant adhesive.

Further, the preparation method of the heating plate for the electric furnace is characterized in that in the step (1) of pressurizing and forming, the temperature of constant-temperature pressurizing is 220-230 ℃, and the pressure applied by the constant-temperature pressurizing is 15-16 MP.

Further, in the preparation method of the heating plate for the electric furnace, in the surface treatment process in the step (2), the curing environment of the curing chamber is controlled to be 40-50 ℃ and the humidity is controlled to be 60-70%.

Further, according to the preparation method of the heating plate for the electric furnace, in the step (2), in the surface treatment process, the ZS-1071 high-temperature-resistant inorganic adhesive is adopted as the high-temperature-resistant adhesive.

Compared with the prior art, the heating plate for the electric furnace and the preparation method thereof have the beneficial effects that: because be provided with the board that generates heat on the insulating layer of furnace body inside, through the board that generates heat is connected with heating controller electricity, utilizes the board that generates heat to directly heat, and its thermal efficiency is high, and it is fast to have the programming rate, and constant temperature performance is good to can guarantee the even uniformity of different position temperatures in the furnace body, can also energy saving, reduce use cost. The heating plate prepared by the method has the advantages of simple structure, convenient installation and operation, high safety performance and strong practicability, and is particularly suitable for popularization and application.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the heat generating plate of fig. 1.

Shown in the figure: 1-furnace body, 2-heat insulation layer, 3-heating controller, 4-heating plate, 41-conductive substrate layer, 42-heating film layer, 43-insulating wear-resistant layer and 44-electrode copper sheet.

Detailed Description

As shown in fig. 1 and 2, the heating plate for an electric furnace according to the present invention includes a furnace body 1, a heat insulation layer 2 inside the furnace body 1, and a heating controller 3 disposed at an outer side portion of the furnace body 1, wherein the heating plate 4 is disposed on the heat insulation layer 2, the heating plate 4 includes a conductive substrate layer 41, a heating film layer 42, and an insulating wear-resistant layer 43, the heating plate 4 is disposed on a bottom surface and an inner side surface of the heat insulation layer 2, and the heating plate 4 is electrically connected to the heating controller 3.

Further, the heating plate 4 for the electric furnace is a composite structure of a conductive substrate layer 41, a heating film layer 42 and an insulating wear-resistant layer 43, wherein the heating film layer 42 is arranged on the upper side surface and the lower side surface of the conductive substrate layer 41, the insulating wear-resistant layer 43 is arranged on the outer side surface of the heating film layer 42, electrode copper sheets 44 are arranged on the two side edges of the heating plate 4, and the conductive substrate layer 41 is electrically connected with the heating controller 3 through the electrode copper sheets 44.

The preparation method of the heating plate for the electric furnace comprises the following steps:

(1) and (3) pressure forming: cutting the conductive substrate layer 41, the heating film layer 42 and the insulating wear-resistant layer 43 into preset sizes, sequentially adding the heating film layer 42 and the insulating wear-resistant layer 43 on one side, keeping the layers smooth, simultaneously fixing the layers by using instant adhesive, putting the fixed layers into a compression molding device, and sequentially preheating and pressurizing one side of the compression molding device, pressurizing at constant temperature, cooling and pressurizing; processing the other side by the same procedure to obtain a blank heating plate;

(2) surface treatment: placing the obtained blank heating plate in a curing room for curing for 2-3 days, filling the surface groove pieces of the blank heating plate after curing treatment by adopting high-temperature-resistant glue, and polishing and flattening after drying to obtain a semi-finished product heating plate;

(3) setting an electrode copper sheet: presetting the size of the electrode copper sheet 44 in advance, connecting the polished semi-finished heating plate to the electrode copper sheet 44, wrapping the electrode copper sheet 44 at two sides of the heating plate to form electric connection with the conductive substrate layer 41, and finally obtaining the heating plate after the test is qualified.

Further, as a preferred technical scheme of the invention, the invention provides a method for preparing a heating plate for an electric furnace, wherein in the step (1) of pressure forming, cyanoacrylate instant adhesive is adopted as the instant adhesive; the temperature of the constant-temperature pressurization is 220-230 ℃, and the pressure applied by the constant-temperature pressurization is 15-16 MP. In the surface treatment process in the step (2), the curing environment of the curing chamber is controlled to be 40-50 ℃ and the humidity is controlled to be 60-70%; the high-temperature-resistant glue adopts ZS-1071 high-temperature-resistant inorganic glue.

According to the heating plate for the electric furnace and the preparation method thereof, the heating plate 4 is arranged on the heat insulation layer 2 in the furnace body 1, the heating plate 4 is of an integrated structure formed by combining the conductive substrate layer 41, the heating film layer 42 and the insulating wear-resistant layer 43, the heating film layer 42 is arranged on the upper side surface and the lower side surface of the conductive substrate layer 41, the insulating wear-resistant layer 43 is arranged on the outer side surface of the heating film layer 42, the electrode copper sheets 44 are arranged on the two side edges of the heating plate 4, the conductive substrate layer 41 is electrically connected with the heating controller 3 through the electrode copper sheets 44, the heating film layer 42 is used for directly heating, the heating efficiency is high, the heating speed is high, the constant temperature performance is good, the uniformity of the temperatures of different parts in the furnace body 1 can be ensured, the energy consumption can be saved, the use cost.

In conclusion, the heating plate prepared by the method has the advantages of simple structure, convenience in installation and operation, high safety performance and strong practicability, and is particularly suitable for popularization and application.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art, and any modifications, equivalents, improvements, etc. made by using the present invention should be included in the protection scope of the present invention.