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CN-121972672-A - Preparation device and method of graphene aluminum alloy powder

CN121972672ACN 121972672 ACN121972672 ACN 121972672ACN-121972672-A

Abstract

The invention discloses a preparation device and method of graphene aluminum alloy powder, comprising a plasma atomization powder preparation device main body and a shaping structure arranged below an atomization chamber of the device, wherein a driving motor is used for linking a bevel gear set to synchronously drive a material ejection cam, a conveying screw and a centrifugal screw to operate, the atomized powder is firstly converged and conveyed to a wake position of a plasma torch system, plasma shaping and defect particle removal of the powder are completed by utilizing the plasma wake, centrifugal sieving and grading collection of the shaped powder are realized by utilizing the centrifugal screw to match a centrifugal screen and a material separation barrel, the corresponding preparation method is based on the device, uniform dispersion and infiltration combination of graphene powder and molten aluminum alloy liquid drops are realized in a plasma atomization powder preparation stage, and then conveying shaping, centrifugal sieving and grading collection of the powder are sequentially completed.

Inventors

  • ZHOU QINGBO
  • LENG JINFENG
  • LIU ZHAOPING
  • ZHOU XUFENG

Assignees

  • 宁波石墨烯创新中心有限公司

Dates

Publication Date
20260505
Application Date
20260210

Claims (9)

  1. 1. A preparation facilities of graphite alkene aluminum alloy powder includes: a main body (1) of a plasma atomization powder making device; The shaping structure (2) is arranged below the inside of the atomizing chamber of the plasma atomizing powder preparation equipment main body (1); the shaping structure (2) comprises a powder seat (21); The method is characterized in that: The inside of the groove arranged on the surface of the powder seat (21) is connected with an integral transmission which is provided with an elastic gasket (216) by virtue of a matching bolt in a shape matching way, the gasket (216) is symmetrically arranged at the lower concave part close to the included angle of the installation table along the axis center left and right, the through blanking hole (2161) is communicated with a material channel which is transversely arranged at the left and right inside the powder seat (21), a first conveying screw (214) is arranged in the material channel by virtue of an internal matching bearing, two ends of the first conveying screw (214) are respectively coaxially and integrally transmitted with a second conical gear set (213) and a top material cam (215) which are respectively arranged in the powder seat (21) by virtue of the matching bearing, wherein the bevel gear shaft ends of the second conical gear set (213) and the first conveying screw (214) positioned at the opposite side are coaxially and rigidly connected with a first conical gear set (212) which is arranged in the powder seat (21) through a bearing, the shaft end matching shaft ends of the first conical gear set (212) positioned at the upper side and the lower side are coaxially and rigidly connected with a driving motor (211) which is arranged in the powder seat (21) and a second conical gear set (222) which is positioned at the upper side of the powder seat (21) and a second conical gear set (22) which is coaxially and rigidly connected with a second conical gear set (222) positioned in the middle position between the second conical gear set (213) and the second conical gear set (2) is arranged at the end of the centrifugal shaft (21), the two sides of the wake flow support body (22) are fixedly inserted and provided with feeding pipes (225), and the second conveying screw (2251) extends upwards from the inside of the powder seat (21) and then is inserted and enters the vertical pipe body of the feeding pipe (225) in an adaptive manner.
  2. 2. The device for preparing the graphene-aluminum alloy powder according to claim 1, wherein the powder seat (21) is positioned and arranged in an atomization chamber of the plasma atomization powder preparation device main body (1), a fan-shaped groove which is convenient for collecting metal powder is formed in the surface of the powder seat (21) facing the plasma torch system, and an installation table protruding out of the powder seat (21) is integrally arranged at the axis position of the groove of the powder seat (21).
  3. 3. The device for preparing graphene-aluminum alloy powder according to claim 1, wherein the sheet body attached to the inclined powder collecting groove surface of the gasket (216) is not connected with the powder seat (21).
  4. 4. The device for preparing graphene aluminum alloy powder according to claim 1, wherein the wheel chamber where the ejection cam (215) is located is opened to a metal powder collecting groove on the surface of the powder seat (21), and in the rotating process, the protruding position of the side face is in pushing contact with the bottom face of the gasket (216).
  5. 5. The preparation device of graphene aluminum alloy powder according to claim 1, wherein the second bevel gear set (213) consists of three bevel gears which are meshed and driven, and a plurality of through powder feeding holes (2131) are arranged at the position where the surface of the bevel gear connected with the first conveying screw (214) is flush with the inner wall of the space where the first conveying screw (214) is located.
  6. 6. The device for preparing graphene-aluminum alloy powder according to claim 1, wherein the upper end of the wake support body (22) is subjected to necking arrangement at a port after expansion and expansion, and the upper end necking is arranged at a wake position of a plasma torch system in an extending manner.
  7. 7. The device for preparing the graphene-aluminum alloy powder according to claim 1, wherein a powder spraying pump body (2252) for pumping and spraying the metal powder is arranged on a pipe body path of the feeding pipe (225) in an isolated mode, and the upper end of the second conveying screw (2251) extends to the lower side of the powder spraying pump body (2252).
  8. 8. The preparation device of graphene aluminum alloy powder according to claim 1, wherein the lower end of the wake support body (22) and the upper surface of the powder seat (21) are fixed on an installation table at the center position of a metal powder collecting groove, a long-distance fracture is formed in the vertical path of the wake support body (22), the fracture is integrally connected again through a centrifugal net (221) through bolts, the inner net surface of the centrifugal net (221) is flush with the wake support body (22), meshes for centrifugally screening the powder are uniformly arranged on the surface of the centrifugal net (221) from top to bottom in stages, a feed separating cylinder (223) is arranged outside the wake support body (22) through bolts in a penetrating mode, separation of centrifugally separating a powder collecting space by the feed separating cylinder (223) is performed through a plurality of integral chamber separating plates (224), an isolation layer for reducing impact is arranged on the fracture surface of the feed separating cylinder (223), the inner cylinder separating plate (224) and the surface in contact with the powder are arranged on the inner net surface of the centrifugal net, the feed separating cylinder (223) is provided with meshes for centrifugally screening the powder, and the feed separating cylinder (223) is provided with a material separating opening and closing structure corresponding to the discharge port (1) is arranged on the discharge port (2231) of the discharge port (223).
  9. 9. A preparation method of graphene aluminum alloy powder, which is characterized by adopting the preparation device of any one of claims 1-8, and comprising the following specific steps: S1, starting a plasma atomization powder preparation equipment main body (1) to finish preliminary preparation of graphene aluminum alloy powder, collecting atomized powder by a fan-shaped groove of a powder seat (21), and synchronously starting a driving motor (211) in the powder seat (21); S2, a driving motor (211) is linked with a material ejection cam (215) and each screw rod to operate through a first bevel gear set (212) and a second bevel gear set (213), powder is conveyed by a first conveying screw rod (214) after being gathered to a blanking port (2161), and then is matched with a powder spraying pump body (2252) through a second conveying screw rod (2251) to be sprayed to a wake position of a plasma torch system along a material feeding pipe (225), so that powder plasma shaping and defective particle removal are completed; S3, enabling the shaped powder to enter a wake flow support body (22), conveying the powder downwards in a spiral manner through a centrifugal screw (222), realizing powder grading screening by utilizing centrifugal force matched with a centrifugal net (221), and throwing the screened powder into a material distributing barrel (223) for temporary storage; s4, closing the plasma atomization powder preparation equipment main body (1) and the driving motor (211), opening a closed door structure of a discharge hole (2231) of the material separation cylinder (223), guiding through a chamber separation plate (224), and collecting graphene aluminum alloy powder with different specifications from each discharge hole (2231) in a grading manner.

Description

Preparation device and method of graphene aluminum alloy powder Technical Field The invention relates to the technical field of powder metallurgy, in particular to a preparation device and method of graphene aluminum alloy powder. Background The graphene aluminum alloy powder is prepared by virtue of low density, high specific strength, excellent heat conduction, electric conduction and processing forming performances, becomes a core base material in the fields of aerospace, new energy automobiles, high-end electronic packaging, metal additive manufacturing and the like, is a steady growth situation in the national dual-carbon strategic promotion and high-end manufacturing and upgrading background at present, the requirements of the domestic aluminum alloy powder industry on high-purity high-sphericity high-performance aluminum alloy powder are continuously increased, the related industries also obtain the key support of national policies such as new material special planning and the like, the graphene serving as a novel two-dimensional nano material has ultrahigh mechanical strength, excellent heat conduction, electric conduction and wear resistance, is an ideal reinforcing body of an aluminum-based composite material, is a key raw material for preparing the high-performance aluminum-based composite material by compounding the graphene with the aluminum alloy powder, can further improve the comprehensive performance of the aluminum-based material, meets the requirements of the low-cost and high-performance metal material in the downstream fields such as aerospace and new energy, and is an important research and development technology of the high-performance metal material, and the graphene aluminum alloy powder is an important material in the continuous research and development direction of the high-end composite material. At present, after plasma atomization powder preparation is completed, a conventional plasma preparation device for graphene aluminum alloy powder is used for guaranteeing the product quality of plasma atomized powder, tamping the basic printing effect of additive manufacturing, shaping and defect particle removal processing are usually required to be carried out on the prepared powder, and a small amount of satellite powder, irregular particles, hollow powder and other defect powder generated in the atomization process are removed, so that sphericity, fluidity and apparent density of the powder are improved, but the existing preparation equipment cannot synchronously realize powder preparation and shaping operation, so that the whole preparation process of the graphene aluminum alloy powder is complicated, and the operation flow is redundant. Therefore, a preparation device and a preparation method of graphene aluminum alloy powder are provided. Disclosure of Invention The invention aims to provide a preparation device and method of graphene aluminum alloy powder, which are used for solving the problem of complicated process of the graphene aluminum alloy powder in the background technology. In order to achieve the above purpose, the invention provides a preparation device of graphene aluminum alloy powder, which comprises the following steps: a plasma atomizing powder-making device main body; The shaping structure is arranged below the inside of the atomizing chamber of the main body of the plasma atomizing powder making equipment; The shaping structure comprises a powder seat; The groove arranged on the surface of the powder seat is connected with a gasket with elasticity by a matching bolt of the mounting table in a shape matching way, the gasket is symmetrically arranged with a through blanking port along the axle center at a low recess close to the included angle of the mounting table, the blanking port is communicated with a material channel which is transversely arranged left and right in the powder seat, a first conveying screw is arranged in the material channel by matching bearings, two ends of the first conveying screw are respectively and coaxially integrally driven with a second bevel gear set and a material ejection cam which are matched with the bearings and arranged in the powder seat, wherein the bevel gear shaft ends of the second bevel gear set and the first conveying screw positioned at the opposite side are coaxially and rigidly connected with the first bevel gear set arranged in the powder seat by the bearings, the first bevel gear group is located the bevel gear axle head cooperation shaft coupling and the bearing of downside and disposes the drive motor in powder seat inside and be located the centrifugal screw rod of powder seat upside and carry out the transmission and be connected, and centrifugal screw rod cooperation bearing bracket rotation constraint is in the inside of wake support body, and the bevel gear axle head of the second bevel gear group that is located the centre carries out rigid connection with the second conveying screw rod that disposes betwe