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Perforation cartridge case manufacturing process

A manufacturing process and technology of perforating bullet casings, applied in the field of casing manufacturing technology, can solve problems such as high stamping waste rate, uneven heating of perforating casing materials, large internal stress, etc., and achieve the effect of solving uneven heating

Active Publication Date: 2013-09-11
宁波宇恒能源科技有限公司
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  • Abstract
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Problems solved by technology

[0004] The present invention mainly solves the technical problems of uneven heating of perforating casing materials, high stamping reject rate and relatively large internal stress in the manufacturing process of perforating casings existing in the prior art, and provides a manufacturing process of perforating casings, which includes The following process steps: (1) Intermediate frequency heating: use intermediate frequency furnace to heat the round steel with intermediate frequency, and heat the round steel to 1150°C to 1200°C; (2) Round steel blanking; (3) Upsetting cake: make the head of the round steel Form a concave spherical surface in the middle; (4) Stamping forming: keep the stamping temperature greater than 1100°C, and ensure that the final forging temperature is greater than 850°C; (5) Normalizing; (6) Cold pressing; (7) Finishing shape; (8) Milling Groove; (9) Remove oil and burrs, surface electroplating

Method used

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  • Perforation cartridge case manufacturing process
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Embodiment

[0022] Embodiment: A kind of perforating cartridge case manufacturing process of this embodiment is as follows figure 1 , 2 , 3, 4, 5, and 6, including the following process steps:

[0023] (1) Intermediate frequency heating: such as figure 1 As shown, 2-3 sets of intermediate frequency heating copper tubes of intermediate frequency furnaces are used to heat the round steel at intermediate frequency, so as to ensure the uniformity of material heating, and the material is heated to 1150 ° C to 1200 ° C. During the heating process, inert gas protection is used to prevent product Oxidation of the surface;

[0024] (2) round steel blanking: such as figure 2 As shown, remove the waste at both ends, determine the blanking length according to the set weight, blank the heated round steel one by one, and blank after heating, which can save blanking energy, increase the blanking speed, and improve the durability of the mold;

[0025] (3) Upsetting cake: such as image 3 As shown,...

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Abstract

The invention discloses a perforation cartridge case manufacturing process which comprises the following steps of (1) medium frequency heating: performing the medium frequency heating on round steel with a medium frequency furnace, and heating the round steel to 1150 DEG C to 1200 DEG C, (2) round steel blanking, (3) cake upsetting: allowing the middle of the head of the round steel to form a spherical concave, (4) stamping forming: keeping the stamping temperature higher than 1100 DEG C, and ensuring that the final forging temperature is higher than 850 DEG C, (5) normalizing, (6) cold pressing, (7) shape finish turning, (8) groove milling, and (9) oil stain and burr removal, and surface electroplating. The perforation cartridge case manufacturing process effectively solves the technical problems of nonuniform heating, high stamping rejection rate, and greater internal stress of a perforation cartridge case material.

Description

[0001] technical field [0002] The invention relates to a casing manufacturing process, in particular to a perforating shell casing manufacturing process. Background technique [0003] Ordinary perforating charge processing technology is: (1) Round steel cutting; (2) Heating; (3) Upsetting cake; (4) Hot stamping; (5) Rough turning inner hole; (6) Rough turning shape; (7) ) Finish turning inner hole; (8) Finish turning shape; (9) Milling groove; (10) Electroplating. However, in this process, there are problems such as uneven heating of the perforating shell material, high stamping reject rate, and large internal stress of the perforating shell. Contents of the invention [0004] The present invention mainly solves the technical problems of uneven heating of perforating casing materials, high stamping reject rate and relatively large internal stress in the manufacturing process of perforating casings existing in the prior art, and provides a manufacturing process of perfor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/22
Inventor 王志潮苏华
Owner 宁波宇恒能源科技有限公司
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