Multi metal base hardfacing alloy

Abstract

A multi metal base hardfacing alloy is provided. The atom percent of each element in the alloy is smaller than 35%. When the alloy is used as a welding material, it has advantages such as low operating temperature, better physical strength hardiness, acid resistance, basic resistance, anti-oxidation, and interface obturation.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This non-provisional application claims priority under 35 U.S.C. § 119(a) on Patent Application No(s). 094147567 filed in Taiwan, R.O.C. on Dec. 30, 2005, the entire contents of which are hereby incorporated by reference. BACKGROUND OF THE PRESENT INVENTION [0002] 1. Field of Invention [0003] The present invention relates to a metal material, and more particularly to a multi metal base hardfacing alloy. [0004] 2. Related Art [0005] Along with the progress of research and development of metal materials, metal materials have come to have characteristics such as high strength, high tenacity, high processibility, and low price. Therefore, metal materials are widely used in machinery manufacturing, mould processing, construction, shipbuilding, the automobile industry, and the like, and a large amount of metal materials are consumed. Thus, worldwide demand for metal materials is continuously increasing and metal materials have become one of t...

AI Technical Summary

Benefits of technology

The present invention provides a multi metal base hardfacing alloy that solves the problems of poor welding quality and poor binding between the welding layer and the base material. The alloy includes Fe, Ni, Cr, Mn, or Mo, with the atom percent of each element falling within a specific range. The alloy can be used as a welding material with a lower preheating temperature and has the characteristic of low preheating temperature. The fabricating process of the welding rod of the alloy can be performed in an atmospheric environment. The features and practice of the present invention will be explained in detail below with the accompanying drawings.

Problems solved by technology

Therefore, metal materials are widely used in machinery manufacturing, mould processing, construction, shipbuilding, the automobile industry, and the like, and a large amount of metal materials are consumed.

However, the hardness of metal materials is significantly reduced, the tensile strength is weakened, and softening is aggravated under the high temperature.

However, during fabrication of the hardfacing rod, the alloy powder must be processed by plasma in a vacuum, so mass production of the hardfacing rod is complicated and cannot be widely applied effectively.

However, during fabrication of the welding rod, alloy powders of a specific size are required and the fabricating must be performed by plasma in a vacuum.

Therefore, it is inconvenient to fabricate the welding rod, and is difficult to be widely used in commerce.

As such, the improper selection of welding materials for hardfacing may result in disadvantages such as poor quality of welding and poor binding property between the welding layer and the base material.

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