CN-117259753-B - Anti-reflection centrifugal disk

CN117259753BCN 117259753 BCN117259753 BCN 117259753BCN-117259753-B

Abstract

The anti-reflection centrifugal disk is characterized in that a molten pool and a liquid throwing groove are arranged on the centrifugal disk, a circle of hot-melting material is wrapped at the edge of the centrifugal disk, when the anti-reflection centrifugal disk works, molten drops are thrown out of the centrifugal disk and then strike a deposition layer to be reflected, and the reflected molten drops are captured by the hot-melting material after striking the hot-melting material. The metal molten drop is a high-heat liquid drop, and when striking the hot-melt material, the molten drop can instantly soften the hot-melt material, and at the moment, the molten drop is inlaid or penetrated into the hot-melt material, loses the kinetic energy of re-reflection, and does not strike the deposition layer. Thus, the problem that the reflected molten drops strike the deposited layer again is fundamentally solved. In addition, the invention can recycle the metal material embedded in the hot-melt material by a heating and melting method.

Inventors

LI PENG
WEI SHIZHONG
LEI XIANQING
YANG LU
SUN BO
TONG SHUAIWU
MAO FENG
WANG JUNLING

Assignees

河南科技大学

Dates

Publication Date: 20260512
Application Date: 20230929

Claims (3)

1. An anti-reflection centrifugal disk is provided with a molten pool and a liquid throwing groove, and is characterized in that a circle of hot-melt material is wrapped at the edge of the centrifugal disk, the hot-melt material is any one of asphalt, plastic and hot-melt adhesive, when the anti-reflection centrifugal disk is in operation, the centrifugal disk rotates, molten drops are thrown out from the centrifugal disk and strike a deposition layer to be reflected, the reflected molten drops are captured by the hot-melt material after striking the hot-melt material, a cooling cavity is arranged in the centrifugal disk, cooling liquid is introduced into the cooling cavity, the molten drops can be cooled on one hand, the semi-solidification state is achieved before striking the deposition layer, and on the other hand, the cooling liquid can reduce the temperature of the centrifugal disk and prevent the hot-melt material from being melted by the centrifugal disk.
2. The anti-reflection centrifugal disk of claim 1, wherein a circumferential ring groove is formed in the edge of the centrifugal disk, and the hot-melt material is wrapped in the circumferential ring groove.
3. An anti-reflection centrifugal disk according to claim 2, wherein the circumferential groove has a groove width larger than the height of the formed workpiece.

Description

Anti-reflection centrifugal disk Technical Field The invention relates to the technical field of centrifugal spray forming, in particular to an anti-reflection centrifugal disk. Background The principle of spray deposition is that under the protection of inert gas, molten metal is broken into tiny metal droplets, then the fine metal droplets are continuously sprayed onto a metal substrate under the action of high-pressure gas or centrifugal force to deposit a semi-solidified deposition layer, the deposition layer is solidified into a prefabricated blank by means of heat conduction of the metal substrate, and the prefabricated blank is subjected to hot extrusion or hot forging to form a high-density metal ring body. The spray deposition process has the advantages that annular parts with small component segregation degree, fine and uniform structure and larger size can be prepared. The invention patent with the publication number of CN 109877299B discloses a cast-off device and a cast-off centrifugal disc, wherein the cast-off device in the patent realizes the preparation of the metal hollow ingot by using a jet deposition principle. However, in the application, the prepared metal hollow ingot is not ideal, and mainly has the characteristics of insufficient fine grain structure and insufficient high density. It has been found by analysis that one of the reasons for the insufficient fineness and low compactness of the grain structure is that the molten drops thrown out of the centrifugal disk strike the deposit layer of the formed workpiece in an oblique direction, and after striking the deposit layer, reflection occurs. According to the requirements of the spray forming process, the molten drops need to be rapidly cooled in the throwing process, and the molten drops are required to be in a semi-solidification state before striking the deposited layer. Referring to fig. 1-2. As can be seen from fig. 1-2, the droplet 4 in the semi-solidified state reflects when it impinges on the deposit of the shaped workpiece 3, with only a portion of the droplet being fused to the deposit and another portion of the droplet 4 reflecting off. If the reflected droplets 4 no longer strike the deposit, only material is lost, but most of the droplets 4 strike the deposit of the shaped workpiece 3 again after reflection by the centrifugal disk 1. Because the molten drops after multiple impacts lose part of kinetic energy and solidify gradually, after impacting the deposit again, on one hand, the fusion property of the molten drops and the deposit is poor, the tissue is loose, the density is affected, and on the other hand, the impact kinetic energy is greatly reduced, and fine grain tissue cannot be formed. Disclosure of Invention In order to overcome the defects in the background technology, the invention discloses an anti-reflection centrifugal disk, which aims to absorb or catch the reflected molten drops so that the molten drops can not strike a deposition layer. In order to achieve the aim of the invention, the invention adopts the following technical scheme: The anti-reflection centrifugal disk is characterized in that a molten pool and a liquid throwing groove are arranged on the centrifugal disk, a circle of hot-melting material is wrapped at the edge of the centrifugal disk, when the anti-reflection centrifugal disk works, molten drops are thrown out of the centrifugal disk and then strike a deposition layer to be reflected, and the reflected molten drops are captured by the hot-melting material after striking the hot-melting material. After the technical scheme is implemented, the metal molten drop has the beneficial effects that the metal molten drop is a high-heat liquid drop, when the molten drop impacts the hot-melt material, the hot-melt material can be instantaneously softened, and at the moment, the molten drop is inlaid or penetrated into the hot-melt material to lose the kinetic energy reflected again, so that the molten drop does not impact a deposition layer. Thus, the problem that the reflected molten drops strike the deposited layer again is fundamentally solved. According to the technical scheme, a circumferential annular groove is formed in the edge of the centrifugal disc, and the hot-melting material is wrapped in the circumferential annular groove. After the technical scheme is implemented, the circumferential ring groove is arranged, so that the hot-melting material can be wound on the circumferential ring groove conveniently. Further improving the technical proposal, the groove width of the circumferential ring groove is larger than the height of the formed workpiece. After the technical scheme is implemented, the impact movement is complex, and the flying direction of the partial molten drops after reflection is unpredictable. The groove width of the circumferential ring groove is larger than the height of the formed workpiece, so that the region of the hot-melting material for capturing the molten dr