A device for preparing a high-density WC particle reinforced steel matrix composite

Abstract

The application relates to the technical field of composite material preparation devices, in particular to a high-density WC particle reinforced steel-based composite material preparation device which comprises a sintering furnace body, an upper electrode, a lower electrode, a mold, a fixing structure, a limiting structure, a blocking structure, a clamping structure, a jacking structure and a lower mold punch, the fixing structure is used in cooperation with the limiting structure, the fixing structure is arranged to facilitate fixing the mold during sintering, so that the sintering effect is not affected by the deviation of the mold under the action of pressure, and the stability is high, the blocking structure is used in cooperation with the clamping structure, the blocking structure is arranged to effectively prevent the lower mold punch from falling off from the mold when the mold is moved, and the flexibility is high, and the jacking structure is arranged to facilitate taking out the upper mold punch from the mold, so that the operation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of composite material preparation apparatus, specifically an apparatus for preparing high-density WC particle-reinforced steel matrix composite materials. Background Technology

[0002] WC particle-reinforced steel matrix composites combine the strength of WC particles with the plasticity and toughness of the steel matrix, and have broad application prospects in the field of wear resistance. However, WC particle-reinforced steel matrix composites are prone to overall material failure due to particle shedding under extreme working conditions such as rapid cooling and heating. Therefore, a discharge plasma sintering device is often used in the production process to prepare rare earth dispersion and adhesion treatment WC particle-reinforced steel matrix composites through discharge plasma technology, which is more dense.

[0003] However, in traditional sintering equipment, the mold is usually placed directly between the upper and lower electrodes. As a result, the mold is prone to movement when subjected to pressure, which affects the sintering of the powder material and results in poor stability. Furthermore, when filling the mold with powder material, the lower die punch needs to be inserted into the bottom of the mold first. When the mold is lifted, the lower die punch is prone to falling out of the mold, resulting in waste of powder material. After the sintering of the powder material is completed, the upper die punch needs to be removed from the mold. Due to the small distance between the upper die punch and the mold, it is not convenient for the operator to grasp it, resulting in low operating efficiency and poor flexibility. Summary of the Invention

[0004] To address the problems in the prior art, the present invention provides an apparatus for preparing high-density WC particle-reinforced steel matrix composite materials.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a preparation device for high-density WC particle-reinforced steel matrix composite material, including a sintering furnace body; an upper electrode, on which the upper electrode is installed; a lower electrode, on which the lower electrode is installed; a mold, between which the upper electrode and the lower electrode are provided; and a lower die punch, on which the lower die punch is provided.

[0006] A fixed structure is provided on the lower electrode. The fixed structure includes a guide rail. Two guide rails are fixedly connected to the lower electrode. A guide rod is fixedly connected to the guide rail. A slider is slidably connected to the guide rod. The slider is slidably connected to the guide rail. A connecting plate is fixedly connected to the slider. Two rotating wheels are rotatably connected to the connecting plate. A limit structure is fitted on the guide rail.

[0007] The mold is provided with a lifting structure, which includes an upper die punch and is slidably connected to the mold.

[0008] Specifically, the two guide rails are arranged symmetrically, and the connecting plate has a "T" shaped structure.

[0009] Specifically, the limiting structure includes limiting holes, the guide rail has three limiting holes, the slider is slidably connected to a first limiting strip, the first limiting strip and the slider are fixedly connected to a first tension spring, and the first limiting strip and the limiting holes are engaged.

[0010] Specifically, one end of the first limiting strip passes through the interior of the first tension spring, and the first limiting strip has an "L" shaped structure.

[0011] Specifically, the mold is provided with a blocking structure, the blocking structure includes a first slide groove, the mold has a first slide groove, a slide rod is slidably connected to the first slide groove, a second tension spring is fixedly connected between the slide rod and the mold, a baffle is rotatably connected to the end of the slide rod, and a torsion spring is fixedly connected between the baffle and the slide rod.

[0012] Specifically, a limiting block is slidably connected to the slide rod, a first spring is fixedly connected between the limiting block and the slide rod, and a slot is provided on the baffle, with the limiting block engaging with the slot.

[0013] Specifically, both the limiting block and the slot are pentagonal structures, and the slide rod is fitted with a locking structure.

[0014] Specifically, the engaging structure includes a second limiting strip, which is slidably connected to the mold. A third tension spring is fixedly connected between the second limiting strip and the mold. A limiting groove is formed on the slide rod, and the second limiting strip engages with the limiting groove.

[0015] Specifically, the upper die punch has a "T" shaped cross-section, and two second slide grooves are opened on the upper die punch. A second spring is fixedly connected in the second slide groove, and two connecting strips are fixedly connected on the die.

[0016] Specifically, the upper surface of the connecting strip abuts against the second spring, and the connecting strip has a "T" shaped structure.

[0017] The beneficial effects of this invention are:

[0018] (1) The device for preparing high-density WC particle-reinforced steel matrix composite material of the present invention has a lower electrode installed on the sintering furnace body. The lower electrode is provided with a fixing structure. The fixing structure is used in conjunction with the limiting structure. The setting of the fixing structure facilitates the fixing of the mold during the sintering process, avoids the mold from shifting under pressure and affecting the sintering effect, and has strong stability.

[0019] (2) The apparatus for preparing high-density WC particle-reinforced steel matrix composite material of the present invention has a blocking structure on the mold. The blocking structure is used in conjunction with a locking structure. The blocking structure can effectively prevent the lower die punch from falling out of the mold when the mold is moved, and has high flexibility.

[0020] (3) The apparatus for preparing high-density WC particle-reinforced steel matrix composite material of the present invention has a lifting structure on the mold. The lifting structure facilitates the removal of the upper die punch from the mold, thereby improving the operating efficiency. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the apparatus for preparing high-density WC particle-reinforced steel matrix composite materials provided by the present invention;

[0023] Figure 2 for Figure 1 The diagram shown is an enlarged view of the structure of part A.

[0024] Figure 3 This is a schematic diagram of the connection structure between the lower electrode and the fixing structure of the present invention;

[0025] Figure 4 for Figure 3 The diagram shown is an enlarged view of the structure of section B.

[0026] Figure 5 This is a schematic diagram of the connection structure between the mold and the blocking structure of the present invention;

[0027] Figure 6 for Figure 5 The diagram shows an enlarged view of section C.

[0028] Figure 7 for Figure 5 The diagram shows an enlarged view of the structure of part D.

[0029] In the diagram: 1. Sintering furnace body; 2. Upper electrode; 3. Lower electrode; 4. Mold; 5. Fixing structure; 501. Guide rail; 502. Guide rod; 503. Slider; 504. Connecting plate; 505. Rotary wheel; 6. Limiting structure; 601. Limiting hole; 602. First limiting strip; 603. First tension spring; 7. Blocking structure; 701. First sliding groove; 702. Sliding rod; 703. Baffle; 704. Torsion spring; 705. Limiting block; 706. First spring; 707. Second tension spring; 708. Slot; 8. Engaging structure; 801. Second limiting strip; 802. Limiting groove; 803. Third tension spring; 9. Lifting structure; 901. Upper die punch; 902. Second sliding groove; 903. Second spring; 904. Connecting strip; 10. Lower die punch. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0031] like Figures 1-7 As shown, the apparatus for preparing a high-density WC particle-reinforced steel matrix composite material according to the present invention includes a sintering furnace body 1; an upper electrode 2, which is mounted on the sintering furnace body 1; a lower electrode 3, which is mounted on the sintering furnace body 1; a mold 4, which is provided between the upper electrode 2 and the lower electrode 3; a lower die punch 10, which is provided on the mold 4; and a fixing structure 5, which is provided on the lower electrode 3. The fixing structure 5 includes guide rails 501, two guide rails 501 are fixedly connected to the lower electrode 3, guide rods 502 are fixedly connected to the guide rails 501, sliders 503 are slidably connected to the guide rods 502, sliders 503 are slidably connected to the guide rails 501, and connecting plates 504 are fixedly connected to the sliders 503. There are two rotating wheels 505, and a limiting structure 6 is fitted on the guide rail 501; a lifting structure 9 is provided on the mold 4, and the lifting structure 9 includes an upper die punch 901, which is slidably connected to the mold 4; the two guide rails 501 are symmetrically arranged, and the connecting plate 504 has a "T" shaped structure; the slider 503 slides along the guide rod 502, and the slider 503 drives the connecting plate 504 and the two rotating wheels 505 on the connecting plate 504 to slide left and right, thereby effectively adjusting the distance between the connecting plate 504 and the lower electrode 3, thus facilitating the adaptation of molds 4 with different radii. When the two connecting plates 504 move to the appropriate position, the mold 4 is located between the four rotating wheels 505, thereby effectively fixing the mold 4 and preventing the mold 4 from shifting during the sintering process and affecting the sintering effect.

[0032] Specifically, the limiting structure 6 includes limiting holes 601. Three limiting holes 601 are provided on the guide rail 501. A first limiting strip 602 is slidably connected to the slider 503. A first tension spring 603 is fixedly connected between the first limiting strip 602 and the slider 503. The first limiting strip 602 is engaged with the limiting holes 601. One end of the first limiting strip 602 passes through the interior of the first tension spring 603. The first limiting strip 602 has an "L" shape structure. When the powder material in the mold 4 needs to be sintered, the mold 4 is simply placed between the upper electrode 2 and the lower electrode 3 in the sintering furnace body 1. First, by pulling the first limiting strip 602 outward, the first limiting strip 602 stretches the first tension spring 603. At the same time, the first limiting strip 602 is no longer engaged with the limiting holes 601 on the guide rail 501. At this time, the position of the slider 503 can be freely adjusted, making the operation simple.

[0033] Specifically, the mold 4 is provided with a blocking structure 7, which includes a first slide groove 701. A slide rod 702 is slidably connected to the first slide groove 701. A second tension spring 707 is fixedly connected between the slide rod 702 and the mold 4. A baffle 703 is rotatably connected to the end of the slide rod 702. A torsion spring 704 is fixedly connected between the baffle 703 and the slide rod 702. A limiting block 705 is slidably connected to the slide rod 702. A first spring 706 is fixedly connected between the limiting block 705 and the slide rod 702. A slot 708 is provided on the baffle 703. The limiting block 705 and the slot 708 are engaged. Both the limiting block 705 and the slot 708 are pentagonal structures. A locking structure 8 is fitted on the slide rod 702. The limiting block 705 is pressed inward with a screwdriver through the slot 708 until the pentagonal limiting block 705 is engaged. The baffle 703 is no longer engaged with the slot 708. The limiting block 705 is then rotated and pulled downwards, causing the baffle 703 to drive the sliding rod 702 to slide downwards along the first sliding groove 701. The lower die punch 10 is then inserted into the mold 4 from the bottom. Simultaneously, the limiting block 705 is pressed with a screwdriver by the other hand, compressing the first spring 706. When the limiting block 705 is no longer engaged with the slot 708, the baffle 703 releases its torque. Under the force of spring 704, the plate 703 rotates to the initial position. At this time, the baffle 703 is located directly below the lower die punch 10. Then, the baffle 703 and the slide rod 702 are released. Then, under the tension of the second tension spring 707, the slide rod 702 slides into the mold 4. The slide rod 702 drives the baffle 703 to abut against the bottom surface of the lower die punch 10, thereby effectively blocking the lower die punch 10 and preventing it from falling off when the mold 4 is transferred, thus improving stability.

[0034] Specifically, the engaging structure 8 includes a second limiting strip 801, which is slidably connected to the mold 4. A third tension spring 803 is fixedly connected between the second limiting strip 801 and the mold 4. A limiting groove 802 is formed on the slide rod 702, and the second limiting strip 801 engages with the limiting groove 802. When the baffle 703 abuts against the bottom surface of the lower die punch 10, the second limiting strip 801 engages with the limiting groove 802 on the slide rod 702 under the tension of the third tension spring 803, thereby further improving the stability and flexibility of the slide rod 702.

[0035] Specifically, the upper die punch 901 has a "T" shaped cross-section. Two second slide grooves 902 are formed on the upper die punch 901, and a second spring 903 is fixedly connected within each of the second slide grooves 902. Two connecting strips 904 are fixedly connected to the mold 4, with the upper surface of each connecting strip 904 abutting against the second spring 903. The connecting strip 904 has a "T" shaped structure. After the lower die punch 10 is installed at the bottom of the mold 4, powder material is poured into the mold 4 through the top of the mold 4, completing the powder material filling process. Then, the "T"-shaped upper die punch 901 is engaged in the mold 4, and the second slide groove 902 on the upper die punch 901 is used in conjunction with the connecting strip 904 on the mold 4. The upper surface of the connecting strip 904 abuts against the second spring 903 inside the second slide groove 902. When no force is applied to the upper die punch 901, the upper die punch 901 moves upward under the reset action of the second spring 903, and the top part of the upper die punch 901 disengages from the mold 4, thereby making it easy to remove the upper die punch 901 from the mold 4, which is highly flexible.

[0036] In use, the present invention involves using a screwdriver to press the limiting block 705 inward through the slot 708 until the pentagonal limiting block 705 is no longer engaged with the slot 708. Then, the baffle 703 is rotated, and the limiting block 705 is released. The baffle 703 is pulled downward, causing the slide rod 702 to slide downward along the first slide groove 701. The lower die punch 10 is then inserted into the mold 4 from the bottom end. Simultaneously, the other hand uses a screwdriver to press the limiting block 705, compressing the first spring 706. When the limiting block 705 is no longer engaged with the slot 708, the baffle 703 rotates to its initial position under the force of the torsion spring 704. The baffle 703 is located directly below the lower die punch 10. When the baffle 703 and slide rod 702 are released, the slide rod 702 slides into the mold 4 under the tension of the second tension spring 707. The slide rod 702 causes the baffle 703 to abut against the bottom surface of the lower die punch 10, thereby effectively blocking the lower die punch 10 and preventing it from falling off when the mold 4 is transferred, thus improving stability. When the baffle 703 abuts against the bottom surface of the lower die punch 10, the second limiting strip 801 engages with the limiting groove 802 on the slide rod 702 under the tension of the third tension spring 803, thereby further improving the stability and flexibility of the slide rod 702.

[0037] After the lower die punch 10 is installed at the bottom of the mold 4, the powder material is poured into the mold 4 through the top of the mold 4 to complete the filling of the powder material. Then, the "T"-shaped upper die punch 901 is locked into the mold 4. The second slide groove 902 opened on the upper die punch 901 is used in conjunction with the connecting strip 904 on the mold 4. The upper surface of the connecting strip 904 abuts against the second spring 903 inside the second slide groove 902. When no force is applied to the upper die punch 901, the upper die punch 901 moves upward under the reset action of the second spring 903. The top part of the upper die punch 901 is separated from the mold 4, which makes it easy to remove the upper die punch 901 from the mold 4 and provides high flexibility.

[0038] When the powder material in the mold 4 needs to be sintered, simply place the mold 4 between the upper electrode 2 and the lower electrode 3 in the sintering furnace body 1. First, by pulling the first limiting strip 602 outward, the first limiting strip 602 stretches the first tension spring 603. At the same time, the first limiting strip 602 is no longer engaged with the limiting hole 601 on the guide rail 501. At this time, the position of the slider 503 can be freely adjusted. The operation is simple. By sliding the slider 503 along the guide rod 502, the slider 503 drives the connecting plate 504 and the two rotating wheels 505 on the connecting plate 504 to slide left and right, thereby effectively adjusting the distance between the connecting plate 504 and the lower electrode 3, which makes it easier to adapt to molds 4 with different radii. When the two connecting plates 504 move to the appropriate position, the mold 4 is located between the four rotating wheels 505, thereby effectively fixing the mold 4 and preventing the mold 4 from shifting during the sintering process and affecting the sintering effect.

[0039] It will be apparent 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 invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An apparatus for producing a high-density WC particle reinforced steel matrix composite material, characterized by comprising: include: Sintering furnace body (1); upper electrode (2), the upper electrode (2) is installed on the sintering furnace body (1); lower electrode (3), the lower electrode (3) is installed on the sintering furnace body (1); mold (4), the mold (4) is provided between the upper electrode (2) and the lower electrode (3); lower die punch (10), the lower die punch (10) is provided on the mold (4). A fixed structure (5) is provided on the lower electrode (3). The fixed structure (5) includes a guide rail (501). Two guide rails (501) are fixedly connected to the lower electrode (3). A guide rod (502) is fixedly connected to the guide rail (501). A slider (503) is slidably connected to the guide rod (502). The slider (503) is slidably connected to the guide rail (501). A connecting plate (504) is fixedly connected to the slider (503). Two rotating wheels (505) are rotatably connected to the connecting plate (504). A limit structure (6) is fitted on the guide rail (501). Elevating structure (9), the mold (4) is provided with an elevating structure (9), the elevating structure (9) includes an upper die punch (901), the upper die punch (901) is slidably connected to the mold (4). The mold (4) is provided with a blocking structure (7), the blocking structure (7) includes a first slide groove (701), the mold (4) is provided with a first slide groove (701), a slide rod (702) is slidably connected to the first slide groove (701), a second tension spring (707) is fixedly connected between the slide rod (702) and the mold (4), a baffle (703) is rotatably connected to the end of the slide rod (702), and a torsion spring (704) is fixedly connected between the baffle (703) and the slide rod (702). A limiting block (705) is slidably connected to the slide rod (702), and a first spring (706) is fixedly connected between the limiting block (705) and the slide rod (702). A slot (708) is provided on the baffle (703), and the limiting block (705) engages with the slot (708). The limiting block (705) and the slot (708) are both pentagonal structures, and the sliding rod (702) is fitted with a locking structure (8). The engaging structure (8) includes a second limiting strip (801), which is slidably connected to the mold (4). A third tension spring (803) is fixedly connected between the second limiting strip (801) and the mold (4). A limiting groove (802) is opened on the slide rod (702), and the second limiting strip (801) engages with the limiting groove (802).

2. The apparatus for preparing high density WC particle reinforced steel matrix composite material according to claim 1, wherein: The two guide rails (501) are arranged symmetrically, and the connecting plate (504) has a "T" shaped structure.

3. The apparatus for preparing high density WC particle reinforced steel matrix composite material according to claim 2, characterized in that: The limiting structure (6) includes a limiting hole (601). Three limiting holes (601) are provided on the guide rail (501). A first limiting strip (602) is slidably connected to the slider (503). A first tension spring (603) is fixedly connected between the first limiting strip (602) and the slider (503). The first limiting strip (602) is engaged with the limiting hole (601).

4. The apparatus for preparing high density WC particle reinforced steel matrix composite material according to claim 3, wherein: The first tension spring (603) has one end of the first limiting strip (602) passing through its interior. The first limiting strip (602) has an "L" shaped structure.

5. The apparatus for preparing high density WC particle reinforced steel matrix composite material according to claim 1, wherein: The upper die punch (901) has a "T" shaped cross section. Two second slides (902) are opened on the upper die punch (901). A second spring (903) is fixedly connected in the second slide (902). Two connecting strips (904) are fixedly connected on the mold (4).

6. The apparatus for preparing high density WC particle reinforced steel matrix composite material according to claim 5, wherein: The upper surface of the connecting strip (904) abuts against the second spring (903), and the connecting strip (904) has a "T" shaped structure.

Images