CN-224222712-U - Concave type flow dividing cone structure

CN224222712UCN 224222712 UCN224222712 UCN 224222712UCN-224222712-U

Abstract

The utility model relates to the technical field of aluminum alloy hub casting, and discloses a concave type flow dividing cone structure, which comprises a flow dividing cone body, wherein the lower end of the flow dividing cone body is provided with a cone corresponding to a die cavity, the bottom of the cone is provided with a concave structure recessed in the cone, and the concave structure is in smooth transition with the cone. The utility model eliminates the cone tip structure of the traditional convex diversion cone, eliminates the stress concentration points which are easy to form in the cone tip area of the traditional convex diversion cone, relieves the problem that microscopic cracks are easy to generate in the riser part of the hub, and ensures the casting quality of the hub. Meanwhile, the concave structure enables the aluminum liquid flow of the die to be more uniform and stable when the casting is filled, so that the condition that vortex is easy to generate when the aluminum liquid flows is relieved, the contact opportunity of the aluminum liquid and air is reduced, and the generation of oxide skin is restrained to a certain extent. In addition, the concave structure has a certain adsorption effect on the oxide skin in the aluminum liquid, so that the condition that the oxide skin flows into a cavity to influence the casting quality of the hub is reduced.

Inventors

SUN YUXIN
DONG ZHIQIANG
YANG BIJIA
LIANG YONG
AN LIJUN
QIAO GUOHUA
XIE HUA
SHAO YONGGANG
WANG XUHONG
YUAN QINGXI
ZHANG HUA
WANG HONGYOU
ZHANG DIANJIE
WANG XIAOHU
ZHANG BOWEN
LU YAN
DONG HONGWEI
ZHANG XINZHE

Assignees

秦皇岛戴卡兴龙轮毂有限公司

Dates

Publication Date: 20260512
Application Date: 20250526

Claims (7)

1. The concave type flow dividing cone structure is characterized by comprising a flow dividing cone body (1), wherein a cone (10) is arranged at the lower end of the flow dividing cone body (1) corresponding to a die cavity, a concave structure (11) recessed in the cone (10) is arranged at the bottom of the cone (10), and the concave structure (11) and the cone (10) are in smooth transition.
2. A concave diverter cone structure as set forth in claim 1, characterized in that said cone (10) has a single-sided taper of 10-15.
3. A concave cone structure according to claim 1, wherein the depth of the concave structure (11) is 10-15mm, and the radius of the arc of the concave structure (11) is 4-8mm.
4. A concave cone structure according to claim 1, wherein the inner wall of the concave structure (11) is provided with a concave-convex structure (12) formed by protrusions densely distributed on the inner wall of the concave structure.
5. The concave diverter cone structure as set forth in claim 1, wherein the cone (10) is provided with a diverter channel (13) for communicating the concave structure (11) with the cavity.
6. The concave cone structure of claim 1, wherein the cone body (1) is provided with a cooling cavity (20) for cooling the riser area, and the cooling cavity (20) is composed of a cooling nest (21) arranged on the cone body (1) and a cover plate (22) buckled on the cooling nest (21).
7. The concave diverter cone structure as set forth in claim 6, wherein the cover plate (22) is provided with a water inlet (23) and a water return port (24), and the water inlet (23) and the water return port (24) are respectively communicated with a water inlet pipeline (25) and a water return pipeline (26) to realize circulation supply of cooling water.

Description

Concave type flow dividing cone structure Technical Field The utility model relates to the technical field of aluminum alloy hub casting, in particular to a concave type flow distribution cone structure. Background In the low-pressure casting process of the aluminum alloy hub, the diverter cone is used as a core diversion component of a die system, and the structural design of the diverter cone directly influences the uniformity of aluminum liquid filling and the hub forming quality. The traditional convex diversion cone with cone tip structure commonly adopted in the industry at present mainly has the following technical defects: 1. Stress concentration and crack defect that curvature mutation exists at the joint of the spherical top of the traditional convex diversion cone and the column body, and a stress concentration point is formed in the region when aluminum liquid is solidified, so that microscopic cracks are easy to generate at the riser part of the hub, the product qualification rate is reduced, and the driving safety is threatened. 2. The oxide scale is mixed with the aluminum liquid, so that vortex is easy to generate when the aluminum liquid flows due to the convex flow distribution cone structure, the contact area of the aluminum liquid and air is increased, and the generation amount of the oxide scale (Al 2O3) is obviously improved. And the traditional convex type shunt cone lacks an oxide skin adsorption structure, and the oxides are mixed in the molten aluminum to reduce the fatigue strength of the hub. Based on the above, development of a concave type flow cone structure applied to production practice is a current problem to be solved urgently. Disclosure of utility model The utility model aims to solve the problems that the riser part of the hub is easy to generate micro cracks in the use process of the existing split cone, influences the casting quality and simultaneously relieves the problem of oxide scale inclusion in aluminum liquid. In order to solve the technical problems, the utility model adopts the following technical scheme: The utility model provides a concave type reposition of redundant personnel awl structure, includes the reposition of redundant personnel awl body, the lower extreme of reposition of redundant personnel awl body corresponds the mould die cavity and is provided with the cone, the bottom of cone is provided with the indent structure of sunken in the cone, indent structure and cone smooth transition. Preferably, the unilateral taper of the cone is 10-15 degrees, so that the fluidity of the aluminum liquid is ensured, and meanwhile, the demolding efficiency is also considered. Preferably, the depth of the concave structure is 10-15mm, and the arc radius of the concave structure is 4-8mm. Preferably, the inner wall of the concave structure is provided with a concave-convex structure formed by protrusions densely distributed on the inner wall of the concave structure. Preferably, the cone is provided with a diversion channel for communicating the concave structure with the cavity. Preferably, a cooling cavity for cooling the riser area is formed in the diverter cone body, and the cooling cavity is formed by a cooling nest formed in the diverter cone body and a cover plate buckled on the cooling nest. Preferably, the cover plate is provided with a water inlet and a water return port, and the water inlet and the water return port are respectively communicated with a water inlet pipeline and a water return pipeline to realize the circulation supply of cooling water. The utility model has the beneficial effects that the cone tip structure of the traditional convex type split cone is eliminated, the stress concentration point which is easy to form in the cone tip area of the traditional convex type split cone is eliminated, the problem that micro cracks are easy to generate in the riser part of the hub is relieved, and the casting quality of the hub is ensured. Meanwhile, the concave structure enables the aluminum liquid flow of the die to be more uniform and stable when the casting is filled, so that the condition that vortex is easy to generate when the aluminum liquid flows is relieved, the contact opportunity of the aluminum liquid and air is reduced, and the generation of oxide skin is restrained to a certain extent. In addition, the concave structure has a certain adsorption effect on the oxide skin in the aluminum liquid, so that the condition that the oxide skin flows into a cavity to influence the casting quality of the hub is reduced. Drawings The utility model will be described in further detail with reference to the drawings and the detailed description. Fig. 1 is a schematic structural view of the present utility model. Fig. 2 is a schematic view of the present utility model in use. Fig. 3 is a schematic structural view of a preferred embodiment of the present utility model. In the figure, 1-a flow dividing cone body, 10-a cone, 11-an inward concave struct