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Casting with isolation layer and manufacture method thereof

A manufacturing method and isolation layer technology, applied in the direction of manufacturing tools, non-electric welding equipment, welding equipment, etc., can solve problems affecting driving safety, corrosion cracking, flavanic corrosion, etc., achieve good quality and reliability, avoid The effect of the corrosion effect

Active Publication Date: 2012-03-21
METAL INDS RES & DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, when magnesium alloys are used to replace the above-mentioned aluminum alloys, the activity difference between magnesium and iron will be much larger than that of aluminum and iron. Nickel corrosion, that is to say, when the composite rim made of aluminum alloy is replaced by lighter magnesium alloy, it is more prone to corrosion and cracking, which affects driving safety

Method used

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  • Casting with isolation layer and manufacture method thereof
  • Casting with isolation layer and manufacture method thereof
  • Casting with isolation layer and manufacture method thereof

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing and embodiment the present invention is described in detail:

[0026] refer to image 3 , Figure 4 , Figure 5 ,like image 3 , Figure 4 The casting shown with the isolation layer, is made of such as Figure 5 The casting with the isolation layer is produced in a preferred embodiment of the manufacturing method. Here, the casting is illustrated by taking a car / motorcycle wheel rim as an example, but the application of the present invention is not limited thereto.

[0027] refer to image 3 , Figure 4 , the casting with the isolation layer includes an insert 2 and a casting blank 3 .

[0028] The insert 2 has a base material 21 mainly comprising iron, and an insulating layer 22 composed of an alloy comprising a first metal element. In this embodiment, the base material 21 is the inner edge frame of the rim , the base material 21 is selected from stainless steel, cast iron, or steel. In this embodiment, the base ma...

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Abstract

The invention discloses a casting with an isolation layer and a manufacture method thereof. The invention is mainly characterized in that in an electromagnetic pulse engagement step, an alloy component comprising a first metallic element is correspondingly arranged on a base material mainly comprising the iron element, the component is combined with the base material by an electromagnetic pulse engagement method for forming an embedded component of the isolation layer, and then a casting material comprising a second metallic element is selected in the casting step, wherein the activity difference of the first metallic element and the iron element is smaller than that of the second metallic element and the iron element, the casting material is made into casting blanks by a casting method to be combined with the embedded component, and a casting with the isolation layer is obtained.

Description

technical field [0001] The invention relates to a casting and its manufacturing method, in particular to a casting made of heterogeneous materials and its manufacturing method. Background technique [0002] Materials are often reduced or unusable due to damage, wear, corrosion, radiation damage and other factors caused by the strength that cannot bear the load. This effect is especially corrosion (corrosion). Rust (rusting) is a common The well-known corrosion or oxidation reaction refers specifically to the corrosion phenomenon of iron or iron alloys. The corrosion patterns of iron and steel materials are generally divided into eight categories: uniform corrosion, galvanic corrosion, crevice corrosion, pore corrosion, grain boundary corrosion, selective, Abrasion corrosion, stress corrosion. Among them, the corrosion phenomenon caused by the direct contact of different metals is called galvanic corrosion (galvanic corrosion), that is, when two different metals are coupled ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P17/00B23K20/00B22D19/04
Inventor 谢宝贤苏子可张茂盛
Owner METAL INDS RES & DEV CENT
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