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

A technology of powder metallurgy and casing materials, which is applied in the field of manufacturing powder metallurgy perforating bullet casings and the composition of powder metallurgy perforating bullet casing materials, which can solve the problems that cannot meet the needs of special perforating operations and cannot form small debris, etc. Achieve the effect of satisfying full bore perforation operation, reducing processing cost and improving processing efficiency

Active Publication Date: 2012-12-05
DAQING PETROLEUM ADMINISTRATION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 perforating charges are required. High-quality carbon steel shells, especially No. 20 steel shells, cannot Small debris is formed, which cannot meet the needs of special perforating operations

Method used

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

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Experimental program
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Effect test

Embodiment 1

[0022] (1) Mixing of ingredients: The raw materials in the formula are calculated by weight percentage, 0.8 parts of carbon powder, 1 part of copper powder, 1 part of nickel powder, 0.1 part of molybdenum powder, 97 parts of iron powder and 0.1 part of binder zinc stearate Mix evenly to obtain mixed metal powder. The binder plays the role of temporary lubrication and bonding. Its volatile point is low and will be volatilized during the sintering process.

[0023] (2) Compression molding: install the powder compression molding mold on the hydraulic press, place the mixed metal powder material in (1) in the female mold a3 of the powder compression molding mold and flush with the upper end of the female mold a3, such as figure 1 As shown, firstly, the outer upper floating mold 5 and the inner upper floating mold 4 move downward at a speed of 1mm / s and enter the female mold a3. Moving down, the inner and lower floating mold 1 placed in the inner cavity of the female mold a3 start...

Embodiment 2

[0028] (1) Mixing of ingredients: The raw materials in the formula are calculated by weight percentage, and 0.8 parts of carbon powder, 3 parts of copper powder, 3 parts of nickel powder, 1 part of molybdenum powder, 91.2 parts of iron powder and 1 part of binder are mixed evenly to obtain mixed metal powder;

[0029] (2) Compression molding: install the powder compression molding mold on the hydraulic press, place the mixed metal powder material in (1) in the female mold a3 of the powder compression molding mold and flush with the upper end of the female mold a3, such as figure 1 As shown, first the outer upper floating mold 5 and the inner upper floating mold 4 move downward at a speed of 5mm / s and enter the female mold a3. After moving 8mm in the female mold a3, the outer upper floating mold starts to move downward at a speed of 1 mm / s. Moving down, the inner and lower floating mold 1 placed in the inner cavity of the female mold a3 starts to move downward at a speed of 5 ...

Embodiment 3

[0034](1) Ingredients mixing: The raw materials in the formula are calculated by weight percentage, and 0.8 parts of carbon powder, 0.8 parts of copper powder, 2 parts of nickel powder, 0.5 parts of molybdenum powder, 95.4 parts of iron powder and 0.5 parts of binder are mixed evenly. Obtain mixed metal powder;

[0035] (2) Compression molding: install the powder compression molding mold on the hydraulic press, place the mixed metal powder material in (1) in the female mold a3 of the powder compression molding mold and be flush with the upper end of the middle mold a3, as figure 1 As shown, first the outer upper floating mold 5 and the inner upper floating mold 4 move downward at a speed of 3 mm / s, and enter the female mold a3. Moving down, the inner and lower floating mold 1 placed in the inner cavity of the female mold a3 starts to move downward at a speed of 3 mm / s, and is finally pressed into a formed compact. The final pressing pressure is 1300KN, and the holding time i...

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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

technical field [0001] 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 [0002] 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 the penetration performance of the perforating charge, and the oil industry requires that the h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/00B22F3/03B22F5/10
Inventor 熊健郭忠万潘永新徐志国廉宏峰崔佳丽王伟李晓峰顾军汤占军
Owner DAQING PETROLEUM ADMINISTRATION