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Clad material, method for manufacturing said clad material, and apparatus for manufacturing said clad material

A technology of layered materials and leather materials, applied in the field of manufacturing such composite materials, composite materials with very good high temperature strength, and devices for manufacturing such composite materials, can solve the problem of changes in roll surface characteristics, complex equipment structures, cracks, etc. and other problems, to achieve the effect of preventing change and deterioration, high cooling rate, and high cohesion

Inactive Publication Date: 2007-03-21
SHOWA DENKO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] That is, according to the method in which the skin material is pressure-bonded to the core material after casting of the core material, since it is necessary to provide a casting rolling machine and a pressure-bonding roll, the structure of the equipment becomes complicated, and the productivity is limited by continuous casting of the core material. Casting rate limit
In addition, deterioration of skin adhesion and deterioration of corrosion resistance at the interface caused by segregation layers including oxides formed on the surface at the time of continuous casting cannot be suppressed
[0014] On the other hand, according to the method in which the casting of the core material and the pressure bonding of the skin material to the core material are performed simultaneously, since the position where the skin material contacts the molten metal (core material) on the inlet side of the cooling roll becomes unstable, a part Leather melts and even cracks
In addition, according to Japanese Laid-Open Patent Publication No. 2002-248599, since the width of the core material is larger than that of the skin material and thus the molten metal partially contacts the cooling roll, the characteristics of the roll surface change, making it difficult to control the characteristics of the roll surface for a long time

Method used

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  • Clad material, method for manufacturing said clad material, and apparatus for manufacturing said clad material
  • Clad material, method for manufacturing said clad material, and apparatus for manufacturing said clad material

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0120] Example 1 is an example about the stability of the skin material and the texture of the core material under heat cladding conditions.

[0121]For skin materials 10a and 10b, ingots made of alloy Nos. (a), (c), (f) and (j) shown in Table 1 and manufactured using a semi-continuous casting method were subjected to hot rolling, Intermediate annealing at 370° C. x 4 hours, followed by cold rolling and intermediate annealing if necessary, to obtain a material with a thickness t1 of 0.20 mm.

[0122] For Inventive Examples Nos. 1 to 10 and Comparative Examples Nos. 11 to 19, 21 shown in Table 2 using the above-mentioned cladding material manufacturing apparatus 1, a skin material 10a coated on both surfaces of the core material 11 was produced. and 10b of the three-layer hot-rolled clad material 12 .

[0123] In detail, under the condition in which the skin materials 10a and 10b whose reference numbers are shown in Table 2 were set and rotated while contacting the peripheral ...

example 2

[0138] This example 2 is an example about the brazing performance and corrosion resistance of leather parts and skin materials.

[0139] For the skin materials 10a and 10b, the ingots produced with the alloy Nos. (m) to (r) shown in Table 1 using the semi-continuous casting method were subjected to hot rolling, intermediate annealing at 370° C. for 4 hours, and then if Cold rolling and intermediate annealing were carried out as necessary to obtain a material with a thickness t1 of 0.35 mm.

[0140] For Invention Examples Nos. 22 to 29 shown in Table 3 using an alloy having the composition shown in Table 1 as the molten metal M to be used as a core material, it was manufactured using the above-mentioned apparatus 1 for manufacturing the clad material of Example 1 A three-layer clad material 12 in which skin materials 10a and 10b are pressure-bonded on both surfaces of a core material 11 . At the time of manufacture, the target thickness of the core material 11 after hot rollin...

example 3

[0154] This Example 3 is an example of evaluation regarding the strength of the core material composition.

[0155] For skin materials 10a and 10b, ingots produced with alloy No.(t) shown in Table 1 using the semi-continuous casting method were subjected to hot rolling, intermediate annealing at 370° C. for 4 hours, and then cooling if necessary. Rolling and intermediate annealing to obtain a material with a thickness t1 of 0.25 mm.

[0156] For Invention Examples Nos. 30 to 35 shown in Table 4 using alloys having the compositions (u) to (z) shown in Table 1 as the molten metal M to be used as a core material, the above-mentioned according to Example 1 was used. The apparatus 1 for producing a clad material produces a three-layer clad metal 12 in which skin materials 10 a and 10 b are pressure-bonded on both surfaces of a core material 11 . At the time of manufacture, the target thickness of the core material 11 after hot rolling cladding was set to 5.0 mm. The contact dista...

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Abstract

A method for manufacturing a clad material in which a core material is cast and skin materials are pressure-bonded thereon aims to prevent deterioration of adhesiveness of the core material and the skin materials while keeping sufficient cooling rate of the core material, prevent thickness variation and / or breakage of the skin materials during the manufacturing process, and keep the surface property of the cooling rolls constant. The method for manufacturing a clad material (11) includes the steps of continuously supplying molten metal (M) into a gap between a pair of cooling rollers (2a) (2b) to cast a core material, and cladding skin materials (10a) (10b) on both surfaces of the core material with hot rolling by continuously supplying the skin materials on peripheral surfaces of the cooling rollers so that the skin materials prevent direct contact between the cooling rollers and the molten metal, wherein the skin materials are supplied so as to come into contact with the peripheral surfaces of the cooling rollers, and wherein a contact distance (L1) from a contact starting point (P1) where the skin material begins to come into contact with the cooling roller to a meeting point (P2) where the skin material begins to come into contact with the molten metal is set to 100 times or more of a thickness (t1) of the skin material.

Description

[0001] This application claims the benefit of Japanese Patent Application No. 2004-35186, filed February 12, 2004, and U.S. Provisional Application No. 60 / 545,530, filed February 19, 2004, both of which are hereby incorporated by reference in their entirety Reference. [0002] Cross References to Related Applications [0003] This application is an application filed under 35 U.S.C. §111(a) and claims under 35 U.S.C. §119(e)(1) to the U.S. Benefit from the filing date of Provisional Application No. 60 / 545,530. technical field [0004] The present invention relates to a clad material which is laminated with a skin material on both sides of a core material to provide, for example, brazeability and corrosion resistance, and more particularly to a clad material which is very good in high temperature strength, and the present invention also relates to It relates to a method for producing such a clad material, and an apparatus for producing such a clad material. Background techni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/06B21B1/22B21B3/00B21B11/00C22C21/00F28F21/08B22D11/00B21B1/38B23K20/00B23K20/04C22F1/00C22F1/04
CPCB21B3/003B32B15/016B21B2001/383B22D11/008B21B2003/001B22D11/0622C22C21/00
Inventor 山之井智明南和彦
Owner SHOWA DENKO KK
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