Tooth shoveling radiator and preparation method thereof

A radiator and shovel tooth technology, applied in the field of shovel tooth radiator and its preparation, can solve the problems of easy sliding of tooth holes, broken taps, abnormal quality of shovel teeth, inability to strengthen alloys, etc., so as to improve the manufacturing qualification rate and improve cutting. performance, the effect of shortening the processing cycle

Active Publication Date: 2020-11-10
湖南中创空天新材料股份有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

1060 aluminum alloy hot-rolled plate is an alloy that cannot be strengthened by heat treatment, and the hardness of the material is low. Although the difficulty of tooth removal is low, the follow-up processing cost is high
For example, when milling the bottom plate, the problem of sticking and breaking the knife is easy to occur. After drilling and tapping, the tooth hole is easy to slip and break the tap, which will cause the workpiece to be scrapped. In order to improve this kind of problem, it is necessary to reduce the processing speed of the workpiece and increase a large number of threaded hole reducing nuts to improve , resulting in high machining costs
However, due to the high hardness of 6063 aluminum alloy extruded plate, the maximum shoveling tooth height is much lower than that of 1060 hot-rolled plate, and there is a phenomenon of natural age hardening. abnormal

Method used

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  • Tooth shoveling radiator and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A preparation method of the shoveling tooth radiator of this embodiment. Extrusion of 6 series new alloys is carried out on aluminum alloy special-shaped extrusion plates with specifications of 229mm×25mm. The hardness before aging meets the same shoveling tooth requirements of 1060 aluminum alloy. , the hardness meets the process requirements of the anti-sticking knife for machining the bottom plate and the thread-free hole reducing nut. Concrete preparation process is as follows:

[0033] 1) Melting:

[0034] Heat the raw material aluminum ingot (purity 99.70%) to 735°C to melt to obtain molten aluminum, remove scum on the surface of molten aluminum, according to chemical composition: Si 0.28%, Mg 0.35%, Cu0.02%, Fe 0.12%, Mn 0.02% , Cr 0.02%, Zn 0.005%, Ti 0.05%, and the balance is the standard of Al to adjust the content of alloying elements in the aluminum liquid, and refining and standing; the aluminum liquid after standing is filtered, and then carried out at a ...

Embodiment 2

[0047] A preparation method of the shoveling tooth radiator of this embodiment. Extrusion of 6 series new alloys is carried out on aluminum alloy special-shaped extrusion plates with specifications of 229mm×25mm. The hardness before aging meets the same shoveling tooth requirements of 1060 aluminum alloy. , the hardness meets the process requirements of the anti-sticking knife for machining the bottom plate and the thread-free hole reducing nut. Concrete preparation process is as follows:

[0048] 1) Melting:

[0049] Heat the raw material aluminum ingot (99.70% purity) to 735°C to melt to obtain molten aluminum, remove the scum on the surface of the molten aluminum, according to the chemical composition: Si 0.25%, Mg 0.41%, Cu0.02%, Fe 0.11%, Mn 0.02% , Cr 0.02%, Zn 0.005%, Ti 0.05%, and the balance is the standard of Al to adjust the content of alloying elements in the aluminum liquid, and refining, standing still; the aluminum liquid after standing is filtered, and then ca...

Embodiment 3

[0061] A preparation method of the shoveling tooth radiator of this embodiment. Extrusion of 6 series new alloys is carried out on aluminum alloy special-shaped extrusion plates with specifications of 229mm×25mm. The hardness before aging meets the same shoveling tooth requirements of 1060 aluminum alloy. , the hardness meets the process requirements of the anti-sticking knife for machining the bottom plate and the thread-free hole reducing nut. Concrete preparation process is as follows:

[0062] 1) Melting:

[0063] Heat the raw material aluminum ingot (99.70% purity) to 735°C to melt to obtain molten aluminum, remove the scum on the surface of the molten aluminum, according to the chemical composition: Si 0.25%, Mg 0.41%, Cu0.02%, Fe 0.11%, Mn 0.02% , Cr 0.02%, Zn 0.005%, Ti 0.05%, and the balance is the standard of Al to adjust the content of alloying elements in the aluminum liquid, and refining, standing still; the aluminum liquid after standing is filtered, and then ca...

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Abstract

The invention discloses a tooth shoveling radiator and a preparation method thereof. The preparation method comprises the following steps that S1, a 6-series aluminum alloy plate with the hardness being 32HB-39HB is prepared; S2, the 6-series aluminum alloy plate obtained in the step S1 is subjected to tooth shoveling machining, and a tooth shoveling radiator semi-finished product with a bottom plate and radiating tooth pieces is formed; S3, aging heat treatment is conducted on the tooth shoveling radiator semi-finished product obtained in the step S2 till the hardness of the tooth shoveling radiator semi-finished product is increased to 55-64 HB; and S4, the tooth shoveling radiator semi-finished product treated in the step S3 is machined to obtain a tooth shoveling radiator finished product. According to the method, the tooth shoveling difficulty and height are reduced by reducing the hardness of an aluminum plate before tooth shoveling, the hardness of the aluminum plate after toothshoveling is improved through aging, and the machinability of an aluminum alloy bottom plate is improved.

Description

technical field [0001] The invention relates to the technical field of radiator preparation, in particular to a shovel-tooth radiator and a preparation method thereof. Background technique [0002] The shovel-tooth radiator breaks through the limitation of the thickness-to-length ratio of conventional radiators, and can manufacture radiators with high density. The tooth piece and the base are integrated, there is no interface impedance problem, and the heat dissipation effect is very good, which is close to the aluminum extruded heat sink. It is widely used in the photovoltaic industry, electric vehicles, inverters, and communication products. The processing technology of the shoveling tooth radiator is to use a special tool (shovel knife) to shovel out the tooth pieces one by one on the aluminum alloy aluminum plate and erect them. [0003] Most of the aluminum alloy aluminum plates are 1060 aluminum alloy hot-rolled plates with a hardness of 24-38HB, a plate width of 50-5...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/26H05K7/20F28D21/00C22C21/08C22C21/02C22C1/02C22F1/047C22F1/043
CPCB23P15/26H05K7/2039F28D21/00C22C21/08C22C21/02C22C1/026C22F1/047C22F1/043
Inventor 宋文博黄元春盛智勇张伟彭炯明唐新文
Owner 湖南中创空天新材料股份有限公司
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