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High heat transfer conductive heater for plastic processing machinery

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High heat transfer conductive heater for plastic processing machinery

Date of issue: 2020-07-20 Author: Click:

High heat conduction of a plastic processing machine Electric heater A metal heat conducting plate (40) is arranged on the side of the heating part (22) of the heating element (20). The upper and lower surfaces of the metal heat conducting plate (40) are closely attached to the metal sheath (10). In the heating process, the heat emitted by the heating element is transferred to the metal high thermal conductivity material by the side, and then transferred to the outer cover by the thermal conductive material. Due to the smooth heat transfer channel, the heat emitted by the heating element will be sent out in this channel, which not only increases the thermal efficiency, but also avoids the phenomenon of a large amount of heat accumulated on the heating element, thus effectively protecting it The heating element can prolong its service life.
The heat transfer element (20) is enclosed between the two heating elements (20) and the metal heating element (20), and the metal heating element (10) is fixed between the two heating elements (20) A metal heat conducting plate (40) is arranged on the side of the part (22), and the upper and lower surfaces of the metal heat conducting plate (40) are closely adhered to the metal outer sheath (10).
2. The plastic processing machine according to claim 1 has high heat conduction Electric heater The metal sheath (10) is a flat plate (11), and the metal heat conducting plate (40) is separated from the heating element (20) by an insulator (50).
3. The high heat transfer conductive heater for plastic processing machinery according to claim 1, which is characterized in that at least one convex concave plate (12) is punched with a groove (121) of the heating element in the metal sheath (10), the heating element (20) is placed in the groove (121), and the insulating layer (30) extends to the side of the heating element (20).
4. The high heat transfer conductive heater of the plastic processing machine according to claim 1, which is characterized in that at least one convex concave plate (13) stamped with a groove (131) of the metal heat conducting plate is arranged in the metal sheath (10), and the metal heat conducting plate (40) is placed in the groove (131).
5. The high heat transfer conductive heater for plastic processing machinery according to claim 2, which is characterized in that the insulator (50) is a block insulating block (51), and the insulating block (51) is arranged between the metal heat conducting plate (40) and the heating element (20).
6. The high heat transfer conductive heater for plastic processing machinery according to claim 2, which is characterized in that the insulator (50) is a sheet-shaped insulating partition board (52).
7. The high heat transfer conductive heater of the plastic processing machine according to claim 1, which is characterized in that the upper and lower surfaces of the metal heat conducting plate (40) are coated with high thermal conductivity aluminum silver paste material with good heat resistance.
According to claim (1) of claim 10, the heat conduction between the upper and lower metal sheaths is integrally welded by the heat conduction of the upper and lower metal clad plates (1).
9. The high heat transfer conductive heater of the plastic processing machine according to claim 1, which is characterized in that the heating element (20) is labyrinth type.
technical field
The utility model relates to a heating device, in particular to a flat plate or drum type heater with an outer metal clad sheet used on a plastic processing machine.
Background technology
At present, most of the plastic processing machinery have heating and melting process. In these processing equipment, the electric heating method is basically adopted. The heater with metal cladding is a very common choice. This kind of heater adopts the metal outer covering and the heating element is lined with insulating material between the heating element and the sheath The heater can not only effectively protect the heating elements from being damaged, but also can be made into finished products in advance. As long as the finished product heater is installed on site, there is no need to do insulation treatment. Moreover, the uniform heating can be realized by using the heat conduction function of metal sheath, which is widely used in many fields. However, this kind of heater still has some defects, that is, the heat generated by the heating element must be transmitted to the metal sheath through the insulating material
It is difficult to heat insulation components because of the heat insulation performance of insulation materials Damage, shorten the service life of heating elements.
The utility model provides a high heat transfer conductive heater for a plastic processing machine. A metal heat conducting material with high heat conduction performance is arranged on the side of the heating element around the mining area, and the absorbed heat is directly transmitted to the metal sheath by the metal thermal conductive material, so as to solve the technical problems of low thermal conductivity efficiency and easy damage of heating elements in the prior art. Furthermore, the groove is pre punched out on the metal outer sheath, and the heating element and metal heat conducting material are placed in the groove to improve the insulation performance of the product.
The scheme of the utility model to solve the above technical problems is as follows:
In addition to the metal heating element of the utility model, the metal heating element is arranged between the two heat transmitting parts of the heat transmitting part and the metal sheath, and the metal heating element is arranged between the two heating parts There is a metal heat conducting plate, and the upper and lower surfaces of the metal heat conducting plate are closely adhered to the metal outer sheath: in the heating process, the heat emitted by the heating element is transferred to the metal high thermal conductivity material from the side, and then transferred to the outer cover by the heat conducting material. Due to the smooth heat transfer channel, the heat emitted by the heating element will be sent out through this channel, which not only increases the thermal efficiency, but also increases the thermal efficiency It also avoids the phenomenon that a large amount of heat energy accumulates on the heating element, effectively protects the heating element and prolongs its service life.

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