Novel heating platform for graphite cover glue suction

Abstract

The utility model discloses a novel heating platform for graphite cover glue suction, which comprises a base, a stainless steel platform is mounted at the top end of the base through a plurality of first screws, the base is of a hollow structure, and a plurality of heating disc supports distributed in an annular array are mounted at the bottom end of the stainless steel platform through second screws. A plurality of heating disc supports are arranged on the stainless steel platform, a cast copper heating disc is jointly installed on the inner sides of the plurality of heating disc supports, a graphite cover is arranged in the middle of the top end of the stainless steel platform, an adhesive layer is coated on the surface of the top end of the graphite cover, and graphite paper is adhered to the upper portion of the adhesive layer. Therefore, pressure is borne by the stainless steel platform, the cast copper heating disc cannot deform, and heat loss generated by the cast copper heating disc can be reduced due to the arrangement of the heat preservation felt.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon carbide crystal processing, in particular to a novel heating platform for graphite cap glue absorption. Background Art

[0002] Silicon carbide crystal growth requires the seed crystal to be attached to a graphite cover. Since the graphite cover is made of graphite, which has a porous structure, if glue is directly applied to the graphite cover, the glue will penetrate into the graphite material, resulting in a weak bond and the seed crystal falling off. Therefore, the graphite cover needs to be glue-absorbing before bonding. That is, after applying glue to the graphite cover, a layer of graphite paper is attached, and the graphite cover is heated to a certain temperature. Then, a certain pressure is applied and maintained for a period of time to allow the glue to penetrate into the graphite cover. This process is repeated twice. The original solution is to directly place the graphite cover on an 11 cast copper heating plate. The disadvantages are:

[0003] ① Because the cast copper heating plate is easy to deform, and the upper part needs to be pressed with more than 100 kg, the heating plate will be severely deformed and the heating will be uneven after repeated use;

[0004] ②Cannot be located;

[0005] ③The temperature cannot be measured and is not controlled;

[0006] ④The heating plate is directly exposed to the air and dissipates heat quickly;

[0007] Therefore, those skilled in the art provide a novel heating platform for graphite cap glue absorption to solve the problems raised in the above background technology. Utility Model Content

[0008] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a new heating platform for graphite cover glue absorption.

[0009] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0010] A new heating platform for graphite cap glue absorption includes a base, a stainless steel platform is installed on the top of the base through multiple screws, and the base is a hollow structure. A plurality of heating plate supports distributed in a circular array are installed on the bottom of the stainless steel platform through screws, and a cast copper heating plate is installed on the inner side of the multiple heating plate supports. A graphite cap is provided in the middle of the top of the stainless steel platform, and the top surface of the graphite cap is coated with a glue layer, and graphite paper is bonded above the glue layer.

[0011] Preferably, a thermal insulation felt is installed at the inner bottom end of the base, and a pad is provided in the middle of the thermal insulation felt.

[0012] Preferably, a thermocouple is provided inside the stainless steel platform, and one end of the thermocouple head extends to the outside and is connected to an external wire.

[0013] Preferably, a grounding wire is provided below the outer wall of the base.

[0014] Preferably, a groove is provided in the middle of the top of the stainless steel platform, and the bottom end of the graphite cover is placed inside the groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The technical solution designed by the utility model is to set a stainless steel platform between the cast copper heating plate and the graphite cover so that the pressure is borne on the stainless steel platform, which will not cause the cast copper heating plate to deform. The heat insulation felt is set to reduce the heat loss generated by the cast copper heating plate.

[0017] At the same time, the real-time stability of the heating center can be monitored through thermocouples, which facilitates temperature control;

[0018] The grounding wire can improve the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more specifically and intuitively illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for describing the embodiments or the prior art.

[0020] Figure 1 This is a schematic diagram of the structure of a new heating platform for graphite cap glue suction proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the heating plate support and installation structure proposed by the utility model.

[0022] In the figure: 1. Base; 2. Stainless steel platform; 3. Screw 1; 4. Screw 2; 5. Heating plate support; 6. Cast copper heating plate; 7. Graphite cover; 8. Adhesive layer; 9. Graphite paper; 10. Insulation felt; 11. Pad; 12. Thermocouple; 13. Connecting wires. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] Reference Figure 1-2A new heating platform for graphite cap glue absorption includes a base 1, a stainless steel platform 2 is installed on the top of the base 1 through a plurality of screws 3, and the base 1 is a hollow structure, a plurality of heating plate supports 5 distributed in a ring array are installed on the bottom of the stainless steel platform 2 through screws 4, and a cast copper heating plate 6 is installed on the inner side of the plurality of heating plate supports 5. A graphite cap 7 is provided in the middle of the top of the stainless steel platform 2, and the top surface of the graphite cap 7 is coated with an adhesive layer 8, and a graphite paper 9 is bonded above the adhesive layer 8;

[0025] The technical solution adopted above is to place the graphite cover 7 coated with glue and pasted with graphite paper 9 on the stainless steel platform 2, apply a certain pressure (150 kg) on ​​it, turn on the power through the control box to start heating, so that the graphite cover 7 absorbs glue, and by building in the cast copper heating plate 6, it is not easy to deform.

[0026] A thermal insulation felt 10 is installed at the bottom inner end of the base 1, and a pad 11 is provided in the middle of the thermal insulation felt 10;

[0027] The technical solution adopted above can provide auxiliary support for the copper heating plate 6 through the pad 11, and can reduce temperature loss through the thermal insulation felt 10 to ensure uniform temperature.

[0028] A thermocouple 12 is provided inside the stainless steel platform 2, and one end of the thermocouple 12 extends to the outside and is connected to an external wire;

[0029] The technical solution adopted above can directly measure the center temperature through the provided thermocouple 12, thereby performing corresponding temperature control.

[0030] A grounding wire 13 is provided at the lower portion of the outer wall of the base 1;

[0031] The above technical solution can improve safety by providing the grounding wire 13 .

[0032] A groove is provided in the middle of the top of the stainless steel platform 2, and the bottom end of the graphite cover 7 is placed inside the groove;

[0033] The technical solution adopted above facilitates the positioning and placement of the graphite cover 7 through the groove.

[0034] Working principle:

[0035] The graphite cover 7 coated with glue and pasted with graphite paper 9* is placed on the stainless steel platform 2, and a certain pressure (150 kg) is applied on it. The power is turned on through the control box to start heating, and the real-time temperature is displayed through the thermocouple 12. The temperature is set by controlling the Eurometer to increase and decrease the temperature.

[0036] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A new heating platform for graphite cap glue suction, comprising a base (1), characterized in that: The top of the base (1) is mounted with a stainless steel platform (2) via a plurality of screws (3), and the base (1) is a hollow structure. The bottom of the stainless steel platform (2) is mounted with a plurality of heating plate supports (5) distributed in a circular array via screws (4), and a cast copper heating plate (6) is mounted on the inner side of the plurality of heating plate supports (5). A graphite cover (7) is provided in the middle of the top of the stainless steel platform (2), and a glue layer (8) is coated on the top surface of the graphite cover (7), and graphite paper (9) is bonded above the glue layer (8).

2. A new heating platform for graphite cap glue suction according to claim 1, characterized in that: A thermal insulation felt (10) is installed at the inner bottom end of the base (1), and a pad (11) is provided in the middle of the thermal insulation felt (10).

3. A new heating platform for graphite cap glue suction according to claim 1, characterized in that: A thermocouple (12) is provided inside the stainless steel platform (2), and one end of the head of the thermocouple (12) extends to the outside and is connected to an external wire.

4. A novel heating platform for graphite cap glue suction according to claim 1, characterized in that: A grounding wire (13) is provided at a position below the outer wall of the base (1).

5. The novel heating platform for graphite cap glue suction according to claim 1, characterized in that: A groove is provided in the middle of the top of the stainless steel platform (2), and the bottom end of the graphite cover (7) is placed inside the groove.

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