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Build-up wear-resistant copper-based alloy

一种基合金、耐磨铜的技术，应用在金属材料涂层工艺、机器/发动机、机械设备等方向，能够解决不容易保持合金元素目标浓度等问题，达到满足抗裂性、改善抗裂性、良好平衡方式的效果

Inactive Publication Date: 2007-03-14
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the melting point of zinc or tin is significantly lower than that of copper, zinc or tin are not necessarily satisfactory elements
In particular, when a high-density energy heat source such as a laser beam is used to form the surfacing layer of the above-mentioned copper-based alloy, zinc or tin is easily evaporated during surfacing, and it is not easy to maintain the target concentration of alloying elements

Method used

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  • Build-up wear-resistant copper-based alloy
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Examples

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example 1

[0048] In the following, Example 1 of the present invention will be specifically described with reference to examples. Table 1 lists the compositions (analyzed compositions) of the samples ("T" series, "T" meaning containing titanium) of the surfacing wear-resistant copper-based alloy of the present invention used in this example. The composition of this assay is generally consistent with that of the batch. As listed in Table 1, the composition of Example 1 does not contain cobalt, iron, and molybdenum as positive elements, but contains titanium, and is set to a composition containing the following components by weight %: Nickel: 5.0-20.0 %, silicon: 0.5-5.0%, manganese: 3.0-30.0% and titanium: 3.0-30.0%, and the balance: copper. It should be noted that the sample "i", sample "a", sample "c", sample "e", sample "g" and sample "x" listed in Table 1 are different from the composition range of claim 1, And is designated as a reference sample.

[0049] Each of the above-mention...

example 2

[0061] Next, Example 2 of the present invention will be specifically described. In this example, too, the build-up layer was basically formed under conditions similar to Example 1. Table 2 lists the composition of the samples ("H" series, "H" means containing hafnium) of the surfacing wear-resistant copper-based alloy used in this example. As shown in Table 2, the composition of Example 2 does not actively contain cobalt, iron, and molybdenum, but contains hafnium, and is set into a composition including the following components by weight %: Nickel: 5.0-20.0%, Silicon: 0.5-5.0%, manganese: 3.0-30.0%, hafnium: 3.0-30.0%, and balance: copper.

[0062] When the weld overlay formed from each sample was examined, hard particles having a hard phase were dispersed in the matrix of the overlay. When the surfacing wear-resistant copper-based alloy is taken as 100%, the volume ratio of hard particles in the surfacing wear-resistant copper-based alloy is in the range of about 5-60% of ...

example 3

[0066] Next, Example 3 of the present invention will be specifically described. In this example, too, the build-up layer was basically formed under conditions similar to Example 1. Table 3 shows the composition of the samples ("Z" series, "Z" means containing zirconium) of the overlay wear-resistant copper-based alloy used in this example. As shown in Table 3, the composition of Example 3 does not actively contain cobalt, iron, and molybdenum, but contains zirconium, and is set within a composition including the following components by weight %: nickel: 5.0-20.0%, silicon: 0.5-5.0%, manganese: 3.0-30.0%, zirconium: 3.0-30.0%, and balance: copper.

[0067] As shown in Table 3, when examining the crack occurrence rate, the crack occurrence rate of the overlay layer formed by the sample of Example 3 was low and was 0%. Even when the zirconium content was changed, the crack occurrence rate was 0%. When considering the wear weight, the wear weight of the overlay layer formed by ...

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Abstract

This is to provide a build-up wear-resistant copper-based alloy, which is advantageous for enhancing the cracking resistance and machinability, which is appropriate for cases of building up to form built-up layers especially, and which is equipped with the wear resistance, cracking resistance and machinability combinedly in a well balanced manner. A build-up wear-resistant copper-based alloy is characterized in that it has a composition, which includes nickel: 5.0-20.0%; silicon: 0.5-5.0%; manganese: 3.0-30.0%; and an element, which combines with manganese to form a Laves phase and additionally to form silicide: 3.0-30.0%; by weight %, and inevitable impurities; and additionally the balance being copper. The element can be one member or two or more members of titanium, hafnium, zirconium, vanadium, niobium and tantalum.

Description

technical field [0001] The invention relates to surfacing and wear-resistant copper-based alloys. For example, the present invention can be applied to sliding materials. Background technique [0002] In general, as wear-resistant copper-based alloys for surfacing, there are known: alloys in which beryllium is added to copper; copper-nickel-silicon alloys called Colson alloys; and dispersion-strengthened alloys in which hard Substance oxide particles such as SiO 2 、Cr 2 o 3 and BeO dispersed in a Cu-based matrix. However, these alloys are associated with adhesion problems and are not necessarily adequate properties for wear resistance. [0003] Accordingly, the applicant has developed a zinc and tin overlay wear resistant copper based alloy which is more susceptible to oxidation than copper. In this alloy, anti-adhesion is improved by producing zinc or tin oxides, and the wear resistance of copper-based alloys is improved. However, since the melting point of zinc or ti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/05C22C9/06C22C32/00B22F3/105B22F7/08C22C29/00C23C4/06C23C24/10C23C26/02C23C30/00
CPCC22C9/06C22C9/05C23C4/06C22C32/0047C22C32/0078C22C29/005F01L3/02B22F3/105C23C30/00C23C26/02C23C24/10B22F7/08
Inventor 河崎稔大岛正小林孝雄中西和之
Owner TOYOTA JIDOSHA KK
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