CN219315052U

CN219315052U - Metal target blank heat treatment device

Info

Publication number: CN219315052U
Application number: CN202320722850.7U
Authority: CN
Inventors: 王玉龙; 杨若雅; 朱元华
Original assignee: Lingding Electronic Technology Co ltd
Current assignee: Lingding Electronic Technology Co ltd
Priority date: 2023-04-04
Filing date: 2023-04-04
Publication date: 2023-07-07
Anticipated expiration: 2033-04-04

Abstract

The utility model discloses a metal target blank heat treatment device, which comprises a base bracket and a heat treatment box body arranged on the base bracket, wherein the heat treatment box body comprises a furnace chamber, a refractory brick layer arranged outside the furnace chamber and a vacuum heat preservation layer arranged outside the refractory brick layer, wherein alumina powder is filled in a circle of the refractory brick layer close to the furnace chamber, and an electric heating pipe is wound on the periphery of the furnace chamber; and the inlet of the furnace chamber is connected with a main ventilation pipeline to form an air curtain. The utility model has simple structural design, has good heat preservation and heat insulation effects under a double-layer structure, and reduces energy waste.

Description

Metal target blank heat treatment device

Technical Field

The utility model relates to the technical field of heat treatment in the electronic industry, in particular to a heat treatment device for a metal target blank.

Background

Production of a metal target is indispensable in the heat treatment process, the metal target is heated to the corresponding temperature by a heat treatment furnace, the heating of the furnace takes a long time, the temperature of the heat treatment furnace at a high temperature is reduced rapidly, and the time required for reheating is longer.

The indirect heating type heat treatment furnace generates heat when current passes through the heating element, and materials placed in the furnace are heated by heat conduction and convection radiation, and the heating element can be in contact with air to oxidize when generating heat, so that the element is not effectively protected.

Disclosure of Invention

In view of the above, the utility model aims to overcome the defects of the prior art and provide the metal target blank heat treatment device which has the advantages of simple structure, good heat preservation and insulation effect and convenience in temperature and air tightness monitoring.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the heat treatment device for the metal target blank comprises a base bracket and a heat treatment box body arranged on the base bracket, wherein the heat treatment box body comprises a furnace chamber, a refractory brick layer arranged outside the furnace chamber and a vacuum heat preservation layer arranged outside the refractory brick layer, alumina powder is filled in the periphery of the refractory brick layer close to the furnace chamber, and an electric heating pipe is wound around the periphery of the furnace chamber; and the inlet of the furnace chamber is connected with a main ventilation pipeline to form an air curtain.

Aiming at the technical scheme, the vacuum heat-insulating layer slows down the attenuation degree of the temperature in the furnace chamber, shortens the heating time and saves energy; the alumina powder plays a role in flame retardance; the air curtain plays a role in blocking air and prevents the heating element from being oxidized when being contacted with the air.

Preferably, a sealing cover is arranged above the vacuum heat-insulating layer; the sealing cover comprises a bottom cover, a top cover arranged above the bottom cover and an asbestos screen belt arranged between the bottom cover and the top cover. The asbestos webbing serves the purposes of heat insulation and flame retardance.

Preferably, a jack for placing a thermocouple and a gas detection hole are formed in the top cover. Is used for detecting the temperature and the gas purity in the furnace and avoiding the residual air in the furnace chamber.

Preferably, the main ventilation pipeline is connected with a gas quantity detection valve through a hose.

Preferably, the base support is made of high-strength square steel, and the thickness of the vacuum heat-insulating layer is 150mm. The base support has strong supportability, and the stability of the heat treatment furnace is improved.

Preferably, the inner diameter of the main ventilation pipeline is 15mm; the thickness of the asbestos net belt is 5mm.

Preferably, the diameters of the insertion holes and the gas detection holes are 30mm, and the depth is not less than 270mm.

The beneficial effects of the utility model are as follows:

the vacuum heat-insulating layer is arranged, so that the attenuation degree and the reheating time of the temperature in the heat treatment furnace are greatly reduced, and the energy is greatly saved; the air pipe connected to the heat treatment furnace is used for adding inert gas into the furnace and exhausting air, so that the heating wire is effectively prevented from being oxidized by contact with oxygen, and the service life of the device is greatly prolonged.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

In the figure: 1. a base bracket; 2. a main ventilation duct; 3. a vacuum heat-insulating layer; 4. a layer of firebrick; 5. a gas flow detection valve; 6. a cavity; 7. alumina powder; 8. a bottom cover; 9. an asbestos webbing; 10. a top cover; 11. a thermocouple; 12. a gas detection hole; 13. and (5) an electric heating tube.

Detailed Description

The utility model is further described below with reference to the drawings and examples.

As shown in fig. 1, the metal target blank heat treatment device comprises a base support 1 and a heat treatment box body arranged on the base support 1, wherein the base support 1 is made of high-strength square steel, and has strong supportability.

The heat treatment box body comprises a furnace chamber 6, a refractory brick layer 4 arranged outside the furnace chamber 6 and a vacuum heat preservation layer 3 arranged outside the refractory brick layer 4, wherein the thickness of the vacuum heat preservation layer 3 is 150mm, so that the vacuum heat preservation layer 3 is airtight and airtight, and plays a role in heat preservation; alumina powder 7 is filled in the periphery of the refractory brick layer 4 close to the furnace chamber 6, and an electric heating pipe 13 is wound around the periphery of the furnace chamber 6; the inlet of the furnace chamber 6 is connected with a main ventilation pipeline 2 to form an air curtain, the inner diameter of the main ventilation pipeline 2 is 15mm, and the main ventilation pipeline 2 is connected with an air flow detection valve 5 through a hose.

A sealing cover is arranged above the vacuum heat-insulating layer 3; the sealing cover comprises a bottom cover 8, a top cover 10 arranged above the bottom cover 8, and an asbestos screen belt 9 arranged between the bottom cover 8 and the top cover 10, wherein the thickness of the asbestos screen belt 9 is 5mm. A receptacle for placing the thermocouple 11 and a gas detection hole 12 are provided on the top cover 10. The diameter of the insertion hole and the gas detection hole 12 were each 30mm. The thermocouple 11 is used for measuring the temperature in the heat treatment furnace, and the depth of the thermocouple 11 inserted into the heat treatment furnace is not less than 270mm for accurate temperature measurement.

The application process of the utility model comprises the following steps: the electric heating pipe 13 heats the furnace chamber 6, inert gas is introduced into the main ventilation pipeline 2 to form an air curtain at the inlet of the furnace chamber 6, air in the furnace chamber 6 is discharged, and the element to be heated is placed into the furnace chamber 6 for heat treatment after the element to be heated is heated to a set temperature.

The device elements in the above embodiments are conventional device elements unless otherwise specified, and the structural arrangement, operation or control modes in the embodiments are conventional arrangement, operation or control modes in the art unless otherwise specified.

Finally, it is noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present utility model, and that other modifications and equivalents thereof by those skilled in the art should be included in the scope of the claims of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims

1. The heat treatment device for the metal target blank is characterized by comprising a base bracket and a heat treatment box body arranged on the base bracket, wherein the heat treatment box body comprises a furnace chamber, a refractory brick layer arranged outside the furnace chamber and a vacuum heat preservation layer arranged outside the refractory brick layer, alumina powder is filled in a circle of the refractory brick layer close to the furnace chamber, and an electric heating pipe is wound on the periphery of the furnace chamber; and the inlet of the furnace chamber is connected with a main ventilation pipeline to form an air curtain.

2. The heat treatment device for the metal target blank according to claim 1, wherein a sealing cover is arranged above the vacuum heat-insulating layer; the sealing cover comprises a bottom cover, a top cover arranged above the bottom cover and an asbestos screen belt arranged between the bottom cover and the top cover.

3. The heat treatment device for metal target blanks according to claim 2, wherein a jack for placing a thermocouple and a gas detection hole are provided on the top cover.

4. The heat treatment device for metal target blanks according to claim 1, wherein the main ventilation pipeline is connected with a gas flow detection valve through a hose.

5. The heat treatment device for the metal target blank according to claim 1, wherein the base support is made of high-strength square steel, and the thickness of the vacuum heat-insulating layer is 150mm.

6. The metal target blank heat treatment device according to claim 2, wherein the inner diameter of the main ventilation pipe is 15mm; the thickness of the asbestos net belt is 5mm.

7. The heat treatment device for metal target blanks according to claim 3, wherein the diameters of the insertion holes and the gas detection holes are 30mm, and the depth is not less than 270mm.