60000A-grade rapid hot pressing sintering equipment

Abstract

The utility model belongs to the technical field of high-temperature sintering application, and particularly discloses 60000A-level rapid hot pressing sintering equipment which comprises a horizontal frame, a direct-current power supply, a second copper bar, a hollow cavity mounting seat, a vacuum cavity, a vacuum exhaust pipe, a vacuum pump, a lower pressing head, a lower graphite pressing head, a lower insulating sleeve, an upper pressing head, an upper graphite pressing head, an upper insulating sleeve and the like. The high-quality sintering hot-pressing machine has the beneficial effects that the horizontal frame, the direct-current power supply, the second copper bar, the hollow cavity mounting seat, the vacuum cavity, the vacuum exhaust pipe, the vacuum pump, the lower pressing head, the lower graphite pressing head, the lower insulating sleeve, the upper pressing head, the upper graphite pressing head, the upper insulating sleeve and the like are matched for use, so that high-quality sintering hot-pressing operation of 500 tons at 1800 DEG C of product materials is realized; a cooling-water machine, a cooling-water pipe and a temperature measuring window are used in cooperation, efficient water cooling and real-time temperature monitoring during high-temperature hot-pressing sintering operation are achieved, and the quality and efficiency of a sintered finished product are improved; the heat preservation layer is used for heat preservation and temperature loss prevention of the vacuum cavity.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-temperature sintering application, and specifically relates to 60000A-level rapid hot pressing sintering equipment. Background Art

[0002] The new electric field assisted sintering principle can quickly achieve dense sintering and high-temperature synthesis through DC current heating and axial pressure. The fully automatic program-controlled current regulation can activate the sintering process in the shortest time. The time of the entire densification process can be reduced to tens of seconds to a few minutes, which significantly improves the microstructure and improves the performance.

[0003] Compared with SPS, this technology does not use expensive and difficult to accurately control pulse power supply. Combined with the advantages of flash burning and rapid high temperature, it shows a strong efficiency advantage, optimizes the microstructure of the material, and provides excellent performance for new material samples. On this basis, the sample size is getting larger and larger to meet more and more complex needs.

[0004] The new electric field assisted sintering is the most powerful tool for sintering advanced materials such as special ceramic materials, nano-ceramic materials, gradient functional materials, thermoelectric materials, rare earth permanent magnet materials, metallic glass non-equilibrium materials, etc. It is an ideal choice for carrying out new material research and development.

[0005] At present, how to design a rapid hot pressing sintering equipment is what needs to be studied and solved.

[0006] Therefore, based on the above problems, the utility model provides 60000A-level rapid hot pressing sintering equipment. Utility Model Content

[0007] Purpose of the utility model: The purpose of this utility model is to provide 60000A-level rapid hot pressing sintering equipment to achieve high-quality sintering hot pressing of product materials at 1800 degrees Celsius and 500 tons.

[0008] Technical solution: The 60000A-class rapid hot pressing sintering equipment of the utility model comprises a horizontal frame, an electric control cabinet, a hydraulic station, a vertical four-column press, an oil cylinder, a first copper bar (using a soft copper bar), a DC power supply and a second copper bar. The horizontal frame is provided with a hollow cavity mounting seat, the hollow cavity mounting seat is provided with a vacuum cavity in the vertical four-column press, the vacuum cavity is provided with a vacuum exhaust pipe, a vacuum pump connected to the vacuum exhaust pipe is provided on one side of the horizontal frame, and the horizontal frame is provided with A lower pressure head passing through the lower part of the vacuum chamber, a lower graphite pressure head is arranged on the lower pressure head, a lower insulating sleeve used in conjunction with the lower pressure head is arranged on the lower inner wall of the vacuum chamber, an upper pressure head passing through the upper part of the vacuum chamber is arranged on the vertical four-column press, an upper graphite pressure head is arranged on the upper pressure head, and an upper insulating sleeve used in conjunction with the upper pressure head is arranged on the upper inner wall of the vacuum chamber; wherein one end of the first copper bar and the second copper bar are respectively connected to the upper graphite pressure head and the lower graphite pressure head, and the other end is respectively connected to a DC power supply.

[0009] In the technical solution, the 60000A-level rapid hot pressing and sintering equipment also includes a thermal insulation layer arranged on the inner wall of the vacuum chamber; wherein the thermal insulation layer is used for heat preservation during hot pressing and sintering.

[0010] In the technical solution, the 60000A-level rapid hot pressing sintering equipment also includes a plurality of chillers arranged on one side of the horizontal frame, and cold water pipes respectively connected to the chillers and the vacuum cavity; wherein the chiller cools the vacuum cavity through the cold water pipe, and the vacuum cavity is a double-layer cooling water jacket structure with a front-opening door and a rectangular chamber, and the inner cavity size is 860 width * 860 depth * 840 height mm.

[0011] In the technical solution, the 60000A-level rapid hot pressing and sintering equipment further includes a temperature measuring window arranged on the vacuum cavity; wherein the temperature measuring component detects the hot pressing and sintering temperature in the vacuum cavity through the temperature measuring window.

[0012] In the technical solution, the 60000A-level rapid hot pressing and sintering equipment also includes an operating platform arranged on one side of the horizontal frame; wherein the operating platform is used for hot pressing and sintering loading / unloading operations.

[0013] Compared with the prior art, the beneficial effects of the 60000A-level rapid hot pressing sintering equipment of the utility model are: 1. The horizontal frame, electric control cabinet, hydraulic station, vertical four-column press, oil cylinder, first copper bar, DC power supply, second copper bar, hollow cavity mounting seat, vacuum cavity, vacuum exhaust pipe, vacuum pump, lower pressure head, lower graphite pressure head, lower insulating sleeve, upper pressure head, upper graphite pressure head and upper insulating sleeve, etc., which are used in conjunction, realize the high-quality sintering hot pressing operation of 1800 degrees Celsius and 500 tons of product materials; 2. The chiller, cold water pipe and temperature measuring window used in conjunction realize efficient water cooling and real-time temperature monitoring during high-temperature hot pressing sintering operation, and improve the quality and efficiency of the sintered finished product; 3. The first copper bar adopts soft copper bar, which has good conductivity and ductility, and is convenient for assembly with the upper pressure head and upper graphite pressure head for corresponding reciprocating vertical movement; 4. The insulation layer is used for insulation of the vacuum cavity to prevent temperature loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the main structure of the 60000A-class rapid hot pressing sintering equipment of the utility model;

[0016] Figure 2 It is a left-side structural schematic diagram of the 60000A-class rapid hot pressing sintering equipment of the utility model;

[0017] Figure 3 It is a top view structural schematic diagram of the 60000A-level rapid hot pressing sintering equipment of the utility model;

[0018] Among them, the serial numbers in the figure are as follows: 10-horizontal frame, 11-electric control cabinet, 12-hydraulic station, 13-vertical four-column press, 14-oil cylinder, 15-hollow cavity mounting seat, 16-vacuum cavity, 17-operating platform, 18-temperature measuring window, 19-first copper bar, 20-upper pressure head, 21-upper insulating sleeve, 22-upper graphite pressure head, 23-insulation layer, 24-lower graphite pressure head, 25-lower pressure head, 26-lower insulating sleeve, 27-DC power supply, 28-vacuum pump, 29-vacuum exhaust pipe, 30-cold water pipe, 31-second copper bar, 32-chiller, 33-temperature measuring component. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be noted that the terms "top", "bottom", "side"

[0021] , "the other side", "the front", "the back", "the middle", "the inside", "the top", "

[0022] The orientation or positional relationship indicated by "first", "second", "third" and the like are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Embodiment 1

[0024] like Figure 1 , Figure 2 and Figure 3 The 60000A-class rapid hot pressing sintering equipment shown in the figure comprises a horizontal frame 10, an electric control cabinet 11, a hydraulic station 12, a vertical four-column press 13, an oil cylinder 14, a first copper bar 19 (using a soft copper bar), a DC power supply 27, and a second copper bar 31.

[0025] A hollow cavity mounting seat 15 is provided on the horizontal frame 10.

[0026] A vacuum chamber 16 is disposed on the hollow chamber mounting seat 15 and in the vertical four-column press 13.

[0027] The vacuum chamber 16 is provided with a vacuum exhaust pipe 29.

[0028] A vacuum pump 28 connected to a vacuum exhaust pipe 29 is provided on one side of the horizontal frame 10.

[0029] The horizontal frame 10 is provided with a pressing head 25 penetrating the lower part of the vacuum chamber 16.

[0030] The lower pressure head 25 is provided with a lower graphite pressure head 24.

[0031] The lower inner wall of the vacuum chamber 16 is provided with a lower insulating sleeve 26 used in conjunction with the lower pressure head 25.

[0032] The vertical four-column press 13 is provided with an upper pressing head 20 penetrating the upper part of the vacuum chamber 16.

[0033] The upper pressing head 20 is provided with an upper graphite pressing head 22.

[0034] The upper inner wall of the vacuum chamber 16 is provided with an upper insulating sleeve 21 used in conjunction with the upper pressure head 20;

[0035] One end of the first copper bar 19 and the second copper bar 31 are connected to the upper graphite pressing head 22 and the lower graphite pressing head 24 respectively, and the other end is connected to the DC power supply 27 respectively.

[0036] Embodiment 2

[0037] On the basis of the first embodiment, the 60000A-level rapid hot pressing sintering equipment further includes a heat preservation layer 23 arranged on the inner wall of the vacuum cavity 16;

[0038] The heat-insulating layer 23 is used for heat preservation during hot pressing and sintering to prevent the temperature loss in the vacuum chamber 16 and achieve high-quality hot pressing and sintering operation.

[0039] Embodiment 3

[0040] On the basis of the first or second embodiment, the 60000A-level rapid hot pressing sintering equipment further includes a plurality of chillers 32 disposed on one side of the horizontal frame 10, and cold water pipes 30 respectively connected to the chillers 32 and the vacuum chamber 16;

[0041] Among them, the chiller 32 cools the vacuum chamber 16 through the cold water pipe 30. The vacuum chamber 16 is a double-layer cooling water jacket structure (with a water cooling channel), a front-opening door, a rectangular chamber, and an inner cavity size of 860 width * 860 depth * 840 height mm, which can achieve rapid cooling of high-temperature hot pressing sintering and improve sintering operation efficiency.

[0042] Embodiment 4

[0043] On the basis of the first embodiment or the second embodiment or the third embodiment, the 60000A-level rapid hot pressing sintering equipment further includes a temperature measuring window 18 disposed on the vacuum chamber 16;

[0044] The temperature measuring component 33 (temperature measuring instrument) detects the hot pressing sintering temperature in the vacuum chamber 16 through the temperature measuring window 18, and is used to monitor the temperature state in the hot pressing sintering in real time.

[0045] Embodiment 5

[0046] On the basis of the first embodiment or the second embodiment or the third embodiment or the fourth embodiment, the 60000A-level rapid hot pressing sintering equipment further includes an operating platform 17 disposed on one side of the horizontal frame 10;

[0047] The operating platform 17 is used by operators to perform hot pressing sintering loading / unloading operations, and is also convenient for inspection and maintenance of the vacuum chamber 16 and the like.

[0048] The structural principle or working principle of the 60000A-level rapid hot pressing sintering equipment of this structure:

[0049] (1) placing the material on the lower graphite pressing head 24 (lower mold), starting the vacuum pump 28 to hollow out the vacuum chamber 16 through the vacuum exhaust pipe 29;

[0050] (2) starting the DC power supply 27 through the electric control cabinet 11 to heat the lower graphite pressing head 24 and the upper graphite pressing head 22 (1800 degrees Celsius) through the first copper bar 19 and the second copper bar 31;

[0051] (3) The oil cylinder 14 of the vertical four-column press 13 is started through the hydraulic station 12. At this time, the oil cylinder 14 presses down to link the upper pressing head 20 and the upper graphite pressing head 22 (upper mold) to press down synchronously until they fit with the lower graphite pressing head 24, and the material is subjected to a high-temperature hot pressing vacuum sintering process.

[0052] Meanwhile, during the high-temperature hot-pressing vacuum sintering process of the material, the chiller 32 performs water cooling and temperature reduction protection on the vacuum chamber 16 through the cold water pipe 30 .

[0053] The horizontal frame 10, electric control cabinet 11, hydraulic station 12, vertical four-column press 13, oil cylinder 14, vacuum chamber 16, first copper bar 19, upper graphite pressure head 22, lower graphite pressure head 24, DC power supply 27 and second copper bar 31 in this structure are all conventional components or equipment, and this application does not make any technical improvements.

[0054] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0055] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. 60000A-class rapid hot pressing sintering equipment, comprising a horizontal frame (10), an electric control cabinet (11), a hydraulic station (12), a vertical four-column press (13), an oil cylinder (14), a first copper bar (19), a DC power supply (27) and a second copper bar (31), characterized in that: The horizontal frame (10) is provided with a hollow cavity mounting seat (15). A vacuum chamber (16) is disposed on the hollow chamber mounting seat (15) and is located in the vertical four-column press (13). The vacuum chamber (16) is provided with a vacuum exhaust pipe (29). A vacuum pump (28) connected to a vacuum exhaust pipe (29) is provided on one side of the horizontal frame (10). The horizontal frame (10) is provided with a pressure head (25) penetrating the lower part of the vacuum chamber (16). The lower pressure head (25) is provided with a lower graphite pressure head (24). The lower inner wall of the vacuum chamber (16) is provided with a lower insulating sleeve (26) used in conjunction with the lower pressure head (25). The vertical four-column press (13) is provided with an upper press head (20) penetrating the upper part of the vacuum chamber (16). The upper pressure head (20) is provided with an upper graphite pressure head (22). An upper inner wall of the vacuum chamber (16) is provided with an upper insulating sleeve (21) used in conjunction with an upper pressure head (20); One end of the first copper bar (19) and the second copper bar (31) are respectively connected to the upper graphite pressure head (22) and the lower graphite pressure head (24), and the other end is respectively connected to the direct current power supply (27).

2. The 60000A-level rapid hot pressing sintering equipment according to claim 1, characterized in that: The 60000A-level rapid hot pressing sintering equipment further comprises a heat-insulating layer (23) arranged on the inner wall of the vacuum cavity (16); The heat-insulating layer (23) is used for heat preservation during hot pressing and sintering.

3. The 60000A-level rapid hot pressing sintering equipment according to claim 2, characterized in that: The 60000A-level rapid hot pressing sintering equipment further includes a plurality of water chillers (32) arranged on one side of the horizontal frame (10), and water chillers (30) respectively connected to the water chillers (32) and the vacuum chamber (16); The water chiller (32) cools the vacuum chamber (16) through a cold water pipe (30); the vacuum chamber (16) is a double-layer cooling water jacket structure with a front door and a rectangular chamber; the inner chamber size is 860 width*860 depth*840 height mm.

4. The 60000A-level rapid hot pressing sintering equipment according to claim 3, characterized in that: The 60000A-level rapid hot pressing sintering equipment further comprises a temperature measuring window (18) arranged on the vacuum cavity (16); The temperature measuring component (33) detects the hot pressing sintering temperature in the vacuum cavity (16) through the temperature measuring window (18).

5. The 60000A-level rapid hot pressing sintering equipment according to claim 4, characterized in that: The 60000A-level rapid hot pressing sintering equipment further comprises an operating platform (17) arranged on one side of the horizontal frame (10); The operating platform (17) is used for hot pressing sintering loading / unloading operations.

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