Efficient sintering device for PTFE and metal oxide composite material

Abstract

The utility model provides an efficient sintering device for a PTFE (Polytetrafluoroethylene) and metal oxide composite material, which comprises an equipment support frame, a sintering heating and heat preservation box body is arranged on the equipment support frame, a lower sintering heating device is arranged in the sintering heating and heat preservation box body, an upper heating and heat preservation cover plate is arranged on the upper side of the sintering heating and heat preservation box body, and a lower heating and heat preservation cover plate is arranged on the lower side of the sintering heating and heat preservation box body. A sealing strip is arranged at the joint between the upper heating and heat preservation cover plate and the sintering heating and heat preservation box body, vacuum degree control equipment is arranged on one side of the sintering heating and heat preservation box body and installed on an equipment supporting frame, and a plurality of monitoring instruments are arranged on the upper heating and heat preservation cover plate. According to the utility model, not only can the sintering environment temperature be uniform and the product quality be improved, but also the sintering vacuum degree can be controlled and the product quality can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of new material processing equipment, in particular to an efficient sintering device for PTFE and metal oxide composite materials. Background Technique

[0002] Polytetrafluoroethylene (PTFE for short), also known as Teflon and commonly called the "king of plastics", is a high molecular polymer obtained by polymerizing tetrafluoroethylene as a monomer, with the chemical formula (C 2 F 4 )n. It has excellent heat resistance and cold resistance and can be used for a long time at -180 to 260 °C. This material has the characteristics of being acid and alkali resistant and resistant to various organic solvents, and is almost insoluble in all solvents. At the same time, polytetrafluoroethylene has the characteristic of high temperature resistance, and its friction coefficient is extremely low. Therefore, in addition to being used as a lubricant, it has also become an ideal coating for the inner layer of easily cleaned water pipes.

[0003] A Chinese patent discloses a continuous preparation device for PTFE pre-sintered materials (application number: 202123152003.1), which successively connects a first machine table, a second machine table, a third machine table and an aggregate table from the head end to the tail end of the production line. It is characterized in that a first conveyor belt is arranged on the working surface of the first machine table, a feeding device is horizontally arranged above the head end of the first conveyor belt, a rolling component is arranged below the feeding device, the feeding port facing downwards of the feeding device is opposite to the rolling gap of the rolling component, a second conveyor belt is arranged on the working surface of the second machine table, an oven is erected on the outer periphery of the second conveyor belt, a third conveyor belt is arranged on the working surface of the third machine table, and a cutter is installed on the third conveyor belt. However, its sintering environment control is poor and the product quality is unstable. Content of the Utility Model

[0004] The technical problem solved by the utility model is to provide an efficient sintering device for PTFE and metal oxide composite materials to solve the problems put forward in the above background technique.

[0005] The technical problem solved by the present utility model is achieved by the following technical solutions: An efficient sintering device for a PTFE and metal oxide composite material, comprising: an equipment support frame, on which a sintering heating and heat preservation box body is provided. Inside the sintering heating and heat preservation box body, a lower sintering heating device is provided. Above the sintering heating and heat preservation box body, an upper heating and heat preservation cover plate is provided. Between the upper heating and heat preservation cover plate and the sintering heating and heat preservation box body, a sealing strip is provided at the connection. On one side of the sintering heating and heat preservation box body, a vacuum degree control device is provided, and the vacuum degree control device is installed on the equipment support frame. On the upper heating and heat preservation cover plate, a number of monitoring instruments are provided. The upper heating and heat preservation cover plate includes a sealing cover plate body. Inside the sealing cover plate body, a number of heating monomers are provided. One end of the sealing cover plate body is installed on a cover plate support frame through an opening and closing driving device, and the other end of the sealing cover plate body is installed on the sintering heating and heat preservation box body through a fixed lock. The cover plate support frame is fixed on the equipment support frame.

[0006] Further, the opening and closing driving device includes a cover plate driving arm. One end of the cover plate driving arm is fixed on the sealing cover plate body, and the other end is installed on the output end of an opening and closing driving cylinder through a rotating support shaft. The cylinder body of the opening and closing driving cylinder is installed on the cover plate support frame through a rotating support shaft. The middle part of the cover plate driving arm is installed on the upper end of the cover plate support frame through a rotating support shaft.

[0007] Further, the heating monomer includes a number of electric heating ceramic tubes. The upper ends of the electric heating ceramic tubes are installed on an upper power supply support seat, and the lower ends are installed on a lower power supply support seat. Between the electric heating ceramic tubes, a number of heat equalizing fins are provided.

[0008] Further, the vacuum degree control device includes a vacuum pump. On the air inlet of the vacuum pump, a vacuum extraction tube is provided. On the vacuum extraction tube, a number of vacuum extraction branch tubes are connected through a connecting tube, and control valves are provided on the vacuum extraction branch tubes.

[0009] Further, the lower sintering heating device includes a number of S-shaped electric heating tubes. The S-shaped electric heating tubes are installed on a heating tube support rod through heat insulation fixing blocks. The heating tube support rod is installed inside the sintering heating and heat preservation box body. Power supply end heads are provided at both ends of the S-shaped electric heating tubes.

[0010] Further, a number of equipment support columns are provided at the lower end of the equipment support frame. The upper ends of the equipment support columns are fixedly installed on the equipment support frame, and equipment adjusting feet are provided at the lower ends.

[0011] Further, an adjusting support screw is provided at the upper end of the equipment adjusting foot, and the upper end of the adjusting support screw is installed in a threaded hole on the equipment support column.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model can not only achieve uniform sintering ambient temperature and improve product quality, but also control the sintering vacuum degree to improve product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of the present utility model.

[0014] Figure 2 It is a schematic structural diagram of the upper heating and heat preservation cover plate of the present utility model.

[0015] Figure 3 It is a schematic structural diagram of the heating monomer of the present utility model.

[0016] Figure 4 It is a schematic structural diagram of the vacuum degree control device of the present utility model.

[0017] Figure 5 It is a schematic structural diagram of the lower sintering heating device of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In order to make the implementation means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below with reference to specific drawings. In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal communication of two components.

[0019] Embodiment 1

[0020] As Figures 1 to 5As shown in the figure, a high-efficiency sintering device for PTFE and metal oxide composite materials includes: an equipment support frame 1, on which a sintering heating and heat preservation box body 2 is provided. Inside the sintering heating and heat preservation box body 2, a lower sintering heating device 7 is provided. Above the sintering heating and heat preservation box body 2, an upper heating and heat preservation cover plate 3 is provided. A sealing strip is provided at the connection between the upper heating and heat preservation cover plate 3 and the sintering heating and heat preservation box body 2. On one side of the sintering heating and heat preservation box body 2, a vacuum degree control device 4 is provided, and the vacuum degree control device 4 is installed on the equipment support frame 1. On the upper heating and heat preservation cover plate 3, a number of monitoring instruments 33 are provided. The upper heating and heat preservation cover plate 3 includes a sealing cover plate body 31. Inside the sealing cover plate body 31, a number of heating monomers are provided. One end of the sealing cover plate body 31 is installed on a cover plate support frame 36 through an opening and closing driving device, and the other end of the sealing cover plate body 31 is installed on the sintering heating and heat preservation box body 2 through a fixed lock 32. The cover plate support frame 36 is fixed on the equipment support frame 1. The opening and closing driving device includes a cover plate driving arm 34. One end of the cover plate driving arm 34 is fixed on the sealing cover plate body 31, and the other end is installed on the output end of an opening and closing driving cylinder 35 through a rotating support shaft. The cylinder body of the opening and closing driving cylinder 35 is installed on the cover plate support frame 36 through a rotating support shaft. The middle of the cover plate driving arm 34 is installed on the upper end of the cover plate support frame 36 through a rotating support shaft. The heating monomer includes a number of electric heating ceramic tubes 313. The upper ends of the electric heating ceramic tubes 313 are installed on an upper power supply support seat 311, and the lower ends are installed on a lower power supply support seat 312. A number of heat equalizing fins 314 are provided between the electric heating ceramic tubes 313.

[0021] Example 2

[0022] As Figures 1 to 5 As shown in the figure, a high-efficiency sintering device for PTFE and metal oxide composite materials includes: an equipment support frame 1, on which a sintering heating and heat preservation box body 2 is provided. Inside the sintering heating and heat preservation box body 2, a lower sintering heating device 7 is provided. Above the sintering heating and heat preservation box body 2, an upper heating and heat preservation cover plate 3 is provided. A sealing strip is provided at the connection between the upper heating and heat preservation cover plate 3 and the sintering heating and heat preservation box body 2. On one side of the sintering heating and heat preservation box body 2, a vacuum degree control device 4 is provided, and the vacuum degree control device 4 is installed on the equipment support frame 1. The vacuum degree control device 4 includes a vacuum pump 41. An intake port of the vacuum pump 41 is provided with a vacuum extraction tube 42. A number of vacuum extraction branch tubes 44 are connected to the vacuum extraction tube 42 through a connecting tube 43, and a control valve 45 is provided on the vacuum extraction branch tube 44.

[0023] Example 3

[0024] As Figures 1 to 5As shown in the figure, a high-efficiency sintering device for PTFE and metal oxide composite materials includes: an equipment support frame 1, on which a sintering heating and heat preservation box body 2 is provided. Inside the sintering heating and heat preservation box body 2, a lower sintering heating device 7 is provided. Above the sintering heating and heat preservation box body 2, an upper heating and heat preservation cover plate 3 is provided. A sealing strip is provided at the connection between the upper heating and heat preservation cover plate 3 and the sintering heating and heat preservation box body 2. On one side of the sintering heating and heat preservation box body 2, a vacuum degree control device 4 is provided, and the vacuum degree control device 4 is installed on the equipment support frame 1. The lower sintering heating device 7 includes a number of S-shaped electric heating tubes 71, and the S-shaped electric heating tubes 71 are installed on a heating tube support rod 74 through heat insulation fixing blocks 73. The heating tube support rod 74 is installed inside the sintering heating and heat preservation box body 2. Power supply ends 72 are provided at both ends of the S-shaped electric heating tubes 71.

[0025] Example 4

[0026] As Figures 1 to 5 As shown in the figure, a high-efficiency sintering device for PTFE and metal oxide composite materials includes: an equipment support frame 1, on which a sintering heating and heat preservation box body 2 is provided. Inside the sintering heating and heat preservation box body 2, a lower sintering heating device 7 is provided. Above the sintering heating and heat preservation box body 2, an upper heating and heat preservation cover plate 3 is provided. A sealing strip is provided at the connection between the upper heating and heat preservation cover plate 3 and the sintering heating and heat preservation box body 2. On one side of the sintering heating and heat preservation box body 2, a vacuum degree control device 4 is provided, and the vacuum degree control device 4 is installed on the equipment support frame 1. At the lower end of the equipment support frame 1, a number of equipment support columns 5 are provided. The upper ends of the equipment support columns 5 are fixedly installed on the equipment support frame 1, and equipment adjusting feet 6 are provided at the lower ends. An adjusting support screw is provided at the upper end of the equipment adjusting foot 6, and the upper end of the adjusting support screw is installed in a threaded hole on the equipment support column 5.

[0027] On the equipment support frame 1 of the present utility model, a sintering heating and heat preservation box body 2 is provided. Inside the sintering heating and heat preservation box body 2, a lower sintering heating device 7 is provided. Above the sintering heating and heat preservation box body 2, an upper heating and heat preservation cover plate 3 is provided. A sealing strip is provided at the connection between the upper heating and heat preservation cover plate 3 and the sintering heating and heat preservation box body 2. On one side of the sintering heating and heat preservation box body 2, a vacuum degree control device 4 is provided, and the vacuum degree control device 4 is installed on the equipment support frame 1. It can not only achieve uniform sintering environment temperature and improve product quality, but also control the sintering vacuum degree and improve product quality.

[0028] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed for the present utility model is defined by the appended claims and their equivalents.

Claims

1. An efficient sintering device for PTFE and metal oxide composite materials, comprising: The equipment support frame (1) is provided with a sintering heating and heat preservation box (2) on the equipment support frame (1), characterized in that: a lower sintering heating device (7) is provided in the sintering heating and heat preservation box (2), an upper heating and heat preservation cover plate (3) is provided on the upper side of the sintering heating and heat preservation box (2), a sealing strip is provided at the connection between the upper heating and heat preservation cover plate (3) and the sintering heating and heat preservation box (2), a vacuum control device (4) is provided on one side of the sintering heating and heat preservation box (2), and the vacuum control device (4) is installed on the equipment support frame (1). The upper heating and heat-insulating cover plate (3) is provided with a plurality of monitoring instruments (33), the upper heating and heat-insulating cover plate (3) comprises a sealing cover plate body (31), a plurality of heating units are provided in the sealing cover plate body (31), one end of the sealing cover plate body (31) is mounted on a cover plate support frame (36) through an opening and closing driving device, the other end of the sealing cover plate body (31) is mounted on a sintering heating and heat-insulating box body (2) through a fixing lock (32), and the cover plate support frame (36) is fixed on the equipment support frame (1).

2. The high-efficiency sintering device of a PTFE and metal oxide composite material according to claim 1, characterized in that: The opening and closing driving device comprises a cover plate driving arm (34), one end of the cover plate driving arm (34) is fixed on the sealing cover plate body (31), and the other end is mounted on the output end of the opening and closing driving cylinder (35) through a rotating support shaft, the cylinder body of the opening and closing driving cylinder (35) is mounted on the cover plate support frame (36) through a rotating support shaft, and the middle part of the cover plate driving arm (34) is mounted on the upper end of the cover plate support frame (36) through a rotating support shaft.

3. The high-efficiency sintering device of a PTFE and metal oxide composite material according to claim 1, characterized in that: The heating unit comprises a plurality of electric heating ceramic tubes (313), the upper ends of the electric heating ceramic tubes (313) are mounted on an upper power supply support seat (311), and the lower ends are mounted on a lower power supply support seat (312), and a plurality of heat-distributing fins (314) are arranged between the electric heating ceramic tubes (313).

4. The high-efficiency sintering device of a PTFE and metal oxide composite material according to claim 1, characterized in that: The vacuum control device (4) comprises a vacuum pump (41), an air inlet of the vacuum pump (41) is provided with a vacuum pipe (42), the vacuum pipe (42) is connected to a plurality of vacuum branch pipes (44) via a connecting pipe (43), and the vacuum branch pipes (44) are provided with a control valve (45).

5. The high-efficiency sintering device of a PTFE and metal oxide composite material according to claim 1, characterized in that: The lower sintering heating device (7) comprises a plurality of S-shaped electric heating tubes (71), wherein the S-shaped electric heating tubes (71) are mounted on a heating tube support rod (74) via a heat-insulating fixing block (73), and the heating tube support rod (74) is mounted in a sintering heating insulation box (2), and power supply terminals (72) are provided at both ends of the S-shaped electric heating tubes (71).

6. The high-efficiency sintering device of a PTFE and metal oxide composite material according to claim 1, characterized in that: A plurality of equipment support columns (5) are provided at the lower end of the equipment support frame (1); the upper ends of the equipment support columns (5) are fixedly mounted on the equipment support frame (1) and the lower ends thereof are provided with equipment adjustment feet (6).

7. The high-efficiency sintering device of a PTFE and metal oxide composite material according to claim 6, characterized in that: An adjusting support screw is provided at the upper end of the equipment adjusting foot (6), and the upper end of the adjusting support screw is installed in a screw hole on the equipment supporting column (5).

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