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Aluminum clad strip with excellent heat dissipation effect and production method thereof

A heat dissipation effect and production method technology, applied in the direction of metal rolling, etc., can solve the problems of not being able to produce structural parts, low strength, low composite strength, etc., and achieve good corrosion resistance, excellent plasticity, excellent cold bending and stamping processing performance Effect

Active Publication Date: 2019-12-27
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese Patent Publication No. CN101748853A discloses "a kind of aluminum-steel / aluminum-steel-aluminum clad metal sheet and its manufacturing method", which uses adhesives to realize the composite of steel and aluminum, and the composite strength is low
[0007] Chinese Patent Publication No. CN102019727 discloses "aluminum-coated steel strip for cooler and its preparation method, steel strip and aluminum alloy strip used therein", which mainly relates to aluminum-coated steel strip for heat dissipation and substrate used therein, but the strength is relatively high. Low, cannot be used for the production of structural parts that bear a certain load

Method used

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  • Aluminum clad strip with excellent heat dissipation effect and production method thereof
  • Aluminum clad strip with excellent heat dissipation effect and production method thereof
  • Aluminum clad strip with excellent heat dissipation effect and production method thereof

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Effect test

Embodiment 1

[0041] According to the chemical composition requirements of the aluminum-clad substrate involved in the present invention, steel strips 1 and 0.2mm aluminum strips 2 of different specifications are selected for single-layer compounding, see figure 1 , Rolling at room temperature after surface cleaning and grinding. The chemical composition of the aluminum-clad substrate is shown in Table 1. The aluminum-clad strip is bell-type annealed, and the thickness of the finished product is 0.3-4mm. The properties of the finished product are shown in Table 2.

Embodiment 2

[0043] According to the chemical composition requirements of aluminum-clad substrates in Table 1, steel strips 1 and 0.2mm aluminum strips 2 of different specifications are selected for double-layer compounding, see figure 2 , Rolling at room temperature after surface cleaning and grinding. The thickness of the finished product is 0.3-4mm, and the performance of the finished product is shown in Table 3.

[0044] The yield strength of the aluminum-coated steel sheet in the embodiment obtained according to the design scope of the steel grade composition of the invention and the rolling process control technology is 200-320MPa, the tensile strength exceeds 340MPa, and the elongation is above 35%. The steel-aluminum interface bonding performance is excellent, and has good Excellent cold bending and stamping performance. It can be applied to the manufacture of heat dissipation requirements such as wheels, radiator parts and corrosion resistance requirements.

[0045]

[0046]...

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Abstract

The invention provides an aluminum-coated plate strip with an excellent heat dissipating effect and a production method thereof. The aluminum-coated plate strip is of a composite structure of an aluminum strip and a steel strip, and the steel strip comprises the components of, by weight, 0.005-0.03% of C, larger than 0 and smaller than or equal to 0.005% of Si, 0.2-0.6% of M, smaller than and equal to 0.015% of P, smaller than and equal to 0.005% of S, smaller than and equal to 0.005% of Al, 0.0062-0.02% of N, 0.006-0.05% of O and the balance Fe and inescapable impurities, wherein the conditions of O+N>=0.013% and 0.5<=(O+N) / (P+S)<=5 are met at the same time. The aluminum-coated plate strip has the strength of steel, is 200-320 MPa in yield strength and larger than or equal to 340 MPa in tensile strength, has the good plasticity and performance of cold bending, stamping machining and the like, has the characteristics of corrosion resistance, heat dissipation and beauty of aluminum, andcan be used for production of heat dissipating devices, heat dissipating pieces and wheels.

Description

technical field [0001] The invention relates to an aluminum-clad strip with excellent heat dissipation effect and its production method. The aluminum-clad strip not only has the strength of steel, but also has good corrosion resistance and easy heat dissipation characteristics of aluminum, and at the same time, the clad strip also has excellent cold stamping performance , can be used in the production of wheels, radiator parts and corrosion-resistant boxes. Background technique [0002] With the development of technology and economy, the performance requirements of metal materials are getting higher and higher, and it is often difficult for a single composition of metal materials to meet the performance requirements of multiple aspects in the actual use process at the same time. Selecting two or more metal materials and using various processes to make composite panels can meet special comprehensive performance requirements. Aluminum-clad steel is a composite strip with alum...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/06C22F1/04C21D8/02C21D1/26B21B1/38
CPCB21B1/38B21B2001/386C21D1/26C21D8/0257C22C38/001C22C38/002C22C38/004C22C38/02C22C38/04C22C38/06C22F1/04
Inventor 宋凤明温东辉张国民刘运华
Owner BAOSHAN IRON & STEEL CO LTD
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