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Multi-station compound forming process for perforating bullet shaped charge liner

A composite forming and multi-station technology, applied in the field of drug-type cover production, can solve the problems of short service life of molds, increased production costs, poor product consistency, etc., and achieve high production efficiency, low environmental pollution, and low cost.

Pending Publication Date: 2020-10-30
合肥海得智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the pressure damage caused by one-time pressing to the rotating mold, the consistency of the product is poor, the service life of the mold is short, and the production cost is increased

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] According to a multi-station composite forming process of the perforating ammunition cover, the process includes the following steps:

[0020] S1: Mix various good metal powder raw materials according to the production ratio of the perforating ammunition cover in the star-type powder mixer, the rated machine speed is 300-350 rpm, and the mixing time is 5-7 hours;

[0021] S2: Add 0.2% to 0.5% organic binder to the mixed metal powder, and then granulate the mixed powder in the granulation equipment. After the granulation is completed, sieve after drying to form granules Powder, the mesh number of sieving is 20-45 mesh;

[0022] S3: Put the prepared granulated powder into the punching die, apply 15% of the total pressing pressure with a CNC double-rotor spinning machine, and the total pressure is 20-30MPa, and press the raw material into the blank shape of the traditional Chinese medicine cover , and then add the punched drug-type cover blank into the shaping die, and th...

Embodiment 2

[0025] According to a multi-station composite forming process of the perforating ammunition cover, the process includes the following steps:

[0026] S1: Mix various good metal powder raw materials according to the production ratio of the perforating ammunition cover in the star-type powder mixer, the rated machine speed is 300-350 rpm, and the mixing time is 5-7 hours;

[0027] S2: Add 0.2% to 0.5% organic binder to the mixed metal powder, and then granulate the mixed powder in the granulation equipment. After the granulation is completed, sieve after drying to form granules Powder, the mesh number of sieving is 20-45 mesh;

[0028] S3: Put the prepared granulated powder into the punching mold, apply 30% of the total pressing pressure with a CNC double-rotor spinning machine, and the total pressure is 20-30MPa, and press the raw material into the blank shape of the traditional Chinese medicine cover , and then add the punched drug-type cover blank into the shaping die, and t...

Embodiment 3

[0031] According to a multi-station composite forming process of the perforating ammunition cover, the process includes the following steps:

[0032] S1: Mix various good metal powder raw materials according to the production ratio of the perforating ammunition cover in the star-type powder mixer, the rated machine speed is 300-350 rpm, and the mixing time is 5-7 hours;

[0033] S2: Add 0.2% to 0.5% organic binder to the mixed metal powder, and then granulate the mixed powder in the granulation equipment. After the granulation is completed, sieve after drying to form granules Powder, the mesh number of sieving is 20-45 mesh;

[0034] S3: Put the prepared granulated powder into the punching die, apply 20% of the total pressing pressure with a CNC double-rotor spinning machine, and the total pressure is 20-30MPa, and press the raw material into the blank shape of the traditional Chinese medicine cover , and then add the punched drug-type cover blank into the shaping die, and th...

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Abstract

The invention discloses a multi-station compound forming process for a perforating bullet shaped charge liner. The multi-station compound forming process comprises the following steps of: placing prepared pelleting powder in a cupping die; applying a pressure which is 15-30% of total pressing pressure by using a numerically controlled double rotary spinning machine and then applying a pressure which is 70-90% of the total pressing pressure to punch a shaped charge liner blank capable of adopting spinning; then taking down the punched shaped charge liner blank; treating the blank by adopting apickling and passivating process; and then adding the shaped charge liner blank which is pickled and passivated onto an end surface of a mandrel of the numerically controlled double rotary spinning machine to form the blank plastically successively point-by-point in an axial direction to prepare the shaped charge liner. A perforating bullet powder liner product which is high in density, uniform indensity and good in product precision is obtained by pressing twice, so that the perforating bullet powder liner product which is high in density, uniform in density and good in product precision canbe prepared. The multi-station compound forming process has the advantages of being high in utilization ratio of materials, high in product precision, small in environmental pollution, high in production efficiency, low in cost and the like.

Description

technical field [0001] The present invention relates to the technical field of drug cover production, in particular to a multi-station composite forming process for perforating ammunition cover. Background technique [0002] Shaped energy perforation is an important link in the oil production process, and selecting different types of perforating charges according to different geological conditions in the well is an important measure to improve oil and gas well production. As the core component of the shaped charge, the drug-shaped cover forms a jet flow driven by the detonation products, and finally penetrates the target. The quality of the drug-shaped cover directly determines the penetration and armor-breaking performance of the blasting warhead; There are many ways to manufacture the mold cover. The traditional methods of manufacturing the medicine mold at home and abroad are mainly: turning forming, stamping forming, etc.; Material spinning semi-automatic one-time press...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/03B22F5/10
CPCB22F3/03B22F5/10
Inventor 黄斌顾玉红张晴许媛宋旭强
Owner 合肥海得智能科技有限公司
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