Composition of powder metallurgical perforating charge shell material, professional die and manufacturing method of the powder metallurgical perforating charge shell material

Abstract

The invention relates to a composition of a powder metallurgical perforating charge shell material, a professional die and a manufacturing method of the powder metallurgical perforating charge shell material. The invention mainly solves the problems that the traditional perforating charge shell machining process is complicated and has low machining efficiency and high cost. The powder metallurgical perforating charge shell material comprises the following raw materials in percentage by weight: 0.8 percent of carbon powder, 1 to 3 percent of copper powder, 1 to 3 percent of nickel powder, 0.1 to 1 percent of molybdenum powder, 91.2 to 97 percent of iron powder, and 0.1 to 1 percent of bonding agent; and the powder metallurgical perforating charge shell material is prepared by mixing the raw materials,pressing and molding, sintering, finishing and preservative treatment. The powder metallurgical perforating charge shell adopted the powder pressing molding method to prepared, realizes iron scrap-free processing, has high processing efficiency and reduces the processing cost; and the penetrating performance of a perforating charge manufactured by using the powder shell exceeds the penetrating index of the traditional steel shell, and meanwhile, the perforating charge has the characteristic of low scrap and is suitable for the special operation requirements of full-bore perforations and the like in the petroleum industry.

Description

Composition of powder metallurgy perforating shell material, professional mold and its manufacturing method technical field The invention relates to a perforating bullet casing used in the field of petroleum perforating bullet manufacturing, in particular to a powder metallurgy perforating bullet casing material composition. The invention also relates to a professional mold for manufacturing powder metallurgy perforating charge shells and a manufacturing method thereof. Background technique At present, in the field of perforating bullet shell manufacturing, the widely used perforating bullet shells are mainly made of high-quality carbon steel (such as No. 20 steel) for mechanical processing. The processing procedures are complicated, the processing speed is slow, the processing cycle is long, and a large processing allowance needs to be reserved, resulting in waste of raw materials and high manufacturing costs. The internal tissue structure of the shell material affects t...

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Problems solved by technology

In some special perforating operations such as full-bore perforation in the petroleum industry, powder metallurgy shells that all form small debris after the explosion of the perforati

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