Stabilizer and manufacturing method thereof

Abstract

The invention discloses a stabilizer and a manufacturing method thereof. The manufacturing method comprises the following steps that: hard alloy blocks are first welded on an edge band matrix by adopting a spot welding way; afterwards, spray welding is carried out on the edge band matrix around the hard alloy blocks by adopting a flame spray welding gun; burnt-out alloy powder sprayed out from the welding gun and the edge band matrix are melted integrally to form alloy powder melted layers around the hard alloy blocks; the hard alloy blocks are fixedly arranged on the edge bank matrix firmly; and after a spray-welded layer covers all the hard alloy blocks, the stabilizer is fed onto a cylindrical grinding machine to be subjected to cylindrical grinding, so that each hard alloy block is ground to be exposed and reach the diameter dimension of the outer circle of the needed stabilizer, thereby obtaining the stabilizer. The stabilizer not only has the advantages of being simple in structure and being easy to manufacture, but also has the advantages of high dimensional precision, high abrasive resistance, long service life and the like.

Description

technical field [0001] The invention relates to a stabilizer and a manufacturing method thereof, belonging to the technical field of petroleum drilling tools. Background technique [0002] Stabilizer is one of the commonly used tools in oil drilling. In the prior art, usually after finishing the processing of the ribbed substrate of the stabilizer, in order to make the ribbed substrate produce durable wear resistance during the working process of the stabilizer, it is often necessary to add a wear-resistant layer on the surface of the ribbed substrate , the wear-resistant layer often uses surfacing welding to surfacing cemented carbide powder on the surface of the ribbed substrate. This method of using surfacing cemented carbide powder to make the wear-resistant layer cannot control the consistency of the thickness of the tungsten carbide wear-resistant layer due to the surfacing technology, which leads to differences in the contact area and contact stress during use. The ...

AI Technical Summary

Problems solved by technology

This method of using surfacing cemented carbide powder to make the wear-resistant layer cannot control the consistency of the thickness of the tungsten carbide wear-resistant layer due to the surfacing technology, which leads to differences in the contact area and contact stress during use. The phenomenon of cracking and falling blocks

In addition, in the process of surfacing the hard alloy powder wear-resistant layer, the wear resistance of the formed hard alloy powder wear-resistant layer is greatly increased due to the mutual melting of the cemented carbide powder and the ribbed matrix material. reduce

Therefore, the manufacturing mode of existing stabilizer is still not ideal enough

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