Novel powder metallurgy sintering furnace

Abstract

The utility model provides a novel powder metallurgy sintering furnace which is characterized in that a liquid level sensor and a temperature sensor are arranged in a sintering furnace body device, a cold water pipe is arranged at the bottom of a sintering furnace body, an air inlet and an air outlet are arranged outside the sintering furnace body, and a dehumidifier and an air blower are arranged on a ventilation pipeline. An observation window is arranged outside the warm sintering furnace device; according to the warm sintering furnace device, airflow is blown into the device through the air blower, metallurgical solution raw materials are cooled through the cold water pipe, moisture evaporated from the raw materials is removed through the dehumidifier, sintering is achieved through low-temperature evaporation, it is guaranteed that the raw materials are kept in a low-temperature state all the time, and the characteristic that the low-temperature sintering requirement is met is achieved.

Description

Technical Field

[0001] The utility model relates to the field of sintering furnace production, in particular to a novel powder metallurgy sintering furnace. Background Art

[0002] A sintering furnace refers to a special equipment that allows powder compacts to obtain the required physical, mechanical properties and microstructure through sintering. The sintering furnace is used to dry the slurry on the silicon wafer, remove the organic components in the slurry, and complete the sintering of the aluminum back field and gate lines.

[0003] However, although the existing sintering furnace uses the heat and cold generated by the reverse Carnot cycle in the evaporation and condensation processes of the solution evaporation sintering process, thereby improving the energy utilization rate, the production efficiency is insufficient and the overall economic benefit is low. In order to solve this technical problem, a new type of powder metallurgy sintering furnace is proposed. Utility Model Content

[0004] In view of the above-mentioned defects or shortcomings of the existing low-temperature sintering devices, the present application aims to provide a new type of powder metallurgy sintering furnace, wherein an observation window is provided on the outside of the sintering furnace body, a feed port and an air outlet are provided on the upper part of the sintering furnace body, an air inlet is provided on the side of the sintering furnace body, and the ventilation duct and the air inlet are connected to each other, a discharge port is provided on the side of the sintering furnace body, a cold water pipe is provided at the bottom of the sintering furnace body, a liquid level sensor is provided inside the sintering furnace body, a plastic rod is provided inside the sintering furnace body, a temperature sensor is provided at the end of the plastic rod, a dehumidifier and a blower are provided on the ventilation duct, a drain pipe is provided at the bottom of the dehumidifier, and an air inlet is provided on the top of the blower.

[0005] Preferably, an observation window is provided on the outside of the sintering furnace body, a feed inlet and an air outlet are provided on the upper part of the sintering furnace body, an air inlet is provided on the side of the sintering furnace body, a discharge port is provided on the side of the sintering furnace body, and a cooling water pipe is provided on the bottom of the sintering furnace body.

[0006] Preferably, a liquid level sensor is provided inside the sintering furnace body, a plastic rod is provided inside the sintering furnace body, and a temperature sensor is provided at the end of the plastic rod.

[0007] Preferably, a dehumidifier and a blower are provided on the ventilation duct, a drain pipe is provided at the bottom of the dehumidifier, and an air inlet is provided at the top of the blower.

[0008] Beneficial effects:

[0009] 1. The sintering furnace device can achieve the purpose of fully sintering the metallurgical solution by installing the feed port and the discharge port on both sides of the device respectively. The sintering condition of the solution inside the device can be observed in real time through the observation window. The metallurgical solution raw material can be low-temperature cooled with maximum efficiency by laying a cold water pipe at the bottom of the device. The liquid level sensor can monitor the liquid level drop of the solution inside the device in real time to judge whether the sintering process is completed. The temperature sensor installed below the liquid level inside the device can monitor the solution temperature in real time to judge whether it is the optimal temperature for the low-temperature sintering process.

[0010] 2. The sintering furnace device allows fresh air to enter the device through the installation of ventilation ducts, which can accelerate the evaporation of the solution in the device, thereby increasing the sintering speed of the solute. By installing a dehumidifier at the front end of the ventilation duct, the solution in the recovered air flow can be filtered and discharged from the circulation system through the drain pipe. By installing a blower at the rear end of the ventilation duct, a continuous and stable airflow is provided in the duct, thereby achieving the purpose of the sintering furnace of the metallurgical solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0012] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the facade structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the top view structure of the utility model;

[0015] In the figure: 1. sintering furnace body; 101. feed port; 102. discharge port; 103. air inlet; 104. air outlet; 105. observation window; 2. cold water pipe; 201. liquid level sensor; 202. temperature sensor; 203. plastic rod; 3. dehumidifier; 301. drain pipe; 4. blower; 401. air inlet; 5. ventilation duct. DETAILED DESCRIPTION

[0016] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0017] The accompanying drawings in the embodiments of the present invention: different types of section lines in the drawings are not marked according to national standards, nor do they impose any requirements on the materials of the components. Instead, they are used to distinguish the cross-sectional views of the components in the drawings.

[0018] See also Figure 1-3 A new type of powder metallurgy sintering furnace, the sintering furnace body 1 is provided with an observation window 105 on the outside, the sintering furnace body 1 is provided with a feed port 101 and an air outlet 104 on the upper part, the sintering furnace body 1 is provided with an air inlet 103 on the side, the ventilation duct 5 is connected with the air inlet 103, the sintering furnace body 1 is provided with a discharge port 102 on the side, the sintering furnace body 1 is provided with a cold water pipe 2 at the bottom, the sintering furnace body 1 is provided with a liquid level sensor 201 inside the sintering furnace body 1, the sintering furnace body 1 is provided with a plastic rod 203 inside, the end of the plastic rod 203 is provided with a temperature sensor 202, a dehumidifier 3 and a blower 4 are provided on the ventilation duct 5, the dehumidifier 3 is provided with a drain pipe 301 at the bottom, and the blower 4 is provided with an air inlet 401 at the top.

[0019] Among them, the sintering situation inside the sintering furnace body 1 can be observed in real time through the installation of the observation window 105, and the raw materials are poured into the device through the feed port 101. When the device is working, the temperature sensor 202 is placed below the liquid level by the plastic rod 203, and the plastic rod 203 has a poor thermal conductivity and does not affect the temperature sensor 202 to monitor the real-time temperature of the solution. The liquid level height of the sintering solution is monitored in real time through the liquid level sensor 201, and the sintered solution is poured into a collection container through the discharge port 102.

[0020] The solution to be sintered inside the device is cooled at low temperature through the cold water pipe 2 , fresh air is introduced into the device through the air inlet 103 , and the evaporated solution is taken away from the device through the air outlet 104 .

[0021] Among them, the fresh air system is connected into a circulation state through the ventilation duct 5, the fresh air carrying the evaporated solution is dried by the dehumidifier 3, and the separated solution is discharged from the drain pipe 301, and the fresh air is blown into the ventilation duct 5 through the air inlet 401 by the blower 4 to form a ventilation cycle.

[0022] It should be noted that, when in use, firstly, the metallurgical solution raw material is poured into the device through the feed port 101, and the loading status of the raw material inside the sintering furnace body 1 is observed in real time through the observation window 105, and then the feed port 101 is closed, the cold water pipe 2 is opened to cool the metallurgical solution raw material at low temperature, and the real-time temperature of the solution is monitored through the temperature sensor 202;

[0023] Since the plastic rod 203 isolates the conduction of external temperature, the solution temperature monitored by the temperature sensor 202 is the real temperature of the solution, thus avoiding the temperature data error caused by the conduction of external temperature.

[0024] When the solution temperature drops to the working temperature, the blower 4 is turned on, and the blower 4 passes fresh air into the ventilation duct 5 through the air inlet 401. The ventilation duct 5 is connected to the air inlet 103, and the fresh air is introduced into the device, and a stable airflow is formed above the solution to be sintered in the device, so as to accelerate the sintering speed of the solution to be sintered. Subsequently, the fresh air with the evaporated solution is discharged out of the device through the air outlet 104, and the fresh air with the evaporated solution is dehumidified and dried by turning on the dehumidifier 3, the evaporated solution is separated, and the evaporated solution is discharged out of the fresh air circulation system through the drain pipe 301, so as to prevent the fresh air with excessive humidity from re-entering the circulation to slow down the evaporation speed of the solution, thereby reducing the sintering efficiency. The liquid level sensor 201 arranged inside the container can monitor the solution height in real time, and the sintering completion status can be judged by observing the solution height. When the sintering is completed, the solution level drops to a predetermined position, and it can be judged that the sintering process is completed, and the metallurgical powder after sintering is discharged through the discharge port 102.

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A novel powder metallurgy sintering furnace, comprising a sintering furnace body (1), characterized in that: The sintering furnace body (1) is provided with an observation window (105) on the outside, the sintering furnace body (1) is provided with a material feed port (101) and an air outlet (104) on the top, the sintering furnace body (1) is provided with an air inlet (103) on the side, the ventilation duct (5) is connected to the air inlet (103), the sintering furnace body (1) is provided with a material outlet (102) on the side, the sintering furnace body (1) is provided with a cold water pipe (2) at the bottom, the sintering furnace body (1) is provided with a liquid level sensor (201) inside, the sintering furnace body (1) is provided with a plastic rod (203) inside, and a temperature sensor (202) is provided at the end of the plastic rod (203), the ventilation duct (5) is provided with a dehumidifier (3) and a blower (4), the dehumidifier (3) is provided with a drain pipe (301) at the bottom, and the blower (4) is provided with an air inlet (401) at the top.

2. A novel powder metallurgy sintering furnace according to claim 1, characterized in that: The observation window (105) is installed on the outside of the sintering furnace body (1), the feed port (101) is installed on the top of the sintering furnace body (1), the air outlet (104) is installed on the top of the sintering furnace body (1), and the air inlet (103) is installed on the top of the sintering furnace body (1).

3. The novel powder metallurgy sintering furnace according to claim 1 is characterized in that: The discharge port (102) is installed on the side of the sintering furnace body (1), and the cold water pipe (2) is installed on the inner surface of the bottom of the sintering furnace body (1).

4. The novel powder metallurgy sintering furnace according to claim 1 is characterized in that: The liquid level sensor (201) is mounted on the bottom surface of the sintering furnace body (1), the plastic rod (203) is mounted on the top surface of the sintering furnace body (1), and the temperature sensor (202) is mounted on the bottom end of the plastic rod (203).

5. The novel powder metallurgy sintering furnace according to claim 1 is characterized in that: The dehumidifier (3) is installed at the front end of the ventilation duct (5), and the drainage pipe (301) is installed at the bottom of the dehumidifier (3).

6. The novel powder metallurgy sintering furnace according to claim 1 is characterized in that: The blower (4) is installed at the rear end of the ventilation duct (5), and the air inlet (401) is installed at the top of the blower (4).

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