Stretching die applied to production of bullet case of perforating bullet
A technology of drawing dies and perforating bullets, which is applied to forming tools, manufacturing tools, metal processing equipment, etc., can solve the problems of long mold production cycle, increased enterprise cost, and difficult processing, and achieves a small number of personnel and tools. The effect of high machining accuracy and improved competitiveness
Active Publication Date: 2016-06-15
SHANXI XINHUAN POWDER METALLURGY
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Problems solved by technology
[0003] The casing of the perforating bullet is the main component of the perforating bullet. At present, there are two main methods of producing the casing of the perforating bullet: hot extrusion blank and cold extrusion blank. Both methods require the use of drawing dies to shape the perforating bullet. The shape and size of the inner hole of the bullet case, but the existing mold has a long production cycle, high processing difficulty, poor quality of the final formed inner hole, and increased cost of the enterprise. Therefore, it is necessary to improve the existing technology
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[0019] The following embodiments will further describe the present invention in conjunction with the accompanying drawings.
[0020] Such as figure 1 with figure 2 As shown, the present invention includes an upper template 1, a punching seat 2, a stretching punch 3, a stretching die pressing plate 4, a drawing die 6 and a lower die seat 7, and the upper template 1 is fixed with the stretching punch 3 through the punching seat 2 Connection, the workpiece 5 can be placed between the drawing punch 3 and the drawing die 6, the outer diameter of the punch at the lower end is 0.2mm-0.8mm larger than the inner hole of the workpiece 5, the material is Cr12, and the heat treatment hardness is GRC58-62. The roughness of the surface polishing treatment is 0.4-0.8, the tensile deformation is 12%-20%, and the deformation of low carbon steel is 20%-40%. The material of the drawing die 6 is T10A cold work die steel, and the heat treatment HRC50-60, a through hole is provided in the middle...
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Abstract
The invention relates to the technical field of stretching dies, in particular to a stretching die applied to production of a bullet case of a perforating bullet. The stretching die applied to production of the bullet case of the perforating bullet is easy to manufacture, improves the production efficiency and quality and reduces the production cost; the stretching die comprises an upper die plate, a punching base, a stretching punch, a stretching die pressing plate, a stretching die and a lower die base; the upper die plate is fixedly connected with the stretching punch through the punching base, a workpiece can be contained between the punching base and the stretching die, a through hole is formed in the middle of the stretching die, the stretching die pressing plate is arranged at the upper end of the stretching die, and the lower die base is fixedly connected to the lower end of the stretching die; and the through hole comprises a die inlet, a working belt and a die outlet, the diameter of the die inlet is the same as the diameter of the die outlet, a die inlet corner is formed between the working belt and the die inlet, a die outlet corner is formed between the working belt and the die outlet, and a transition round corner is arranged between the working belt and the die inlet corner. The stretching die is mainly applied to production of the bullet case of the perforating bullet.
Description
technical field [0001] The invention relates to the technical field of stretching dies, and more specifically, relates to a stretching die applied to the production of perforating bomb casings. Background technique [0002] Oil and gas well perforation is a key technology in petroleum exploration and development. The function of perforating bullets is to penetrate the casing and cement sheath that seal the target layer downhole and penetrate into the target layer to form an effective seepage flow pipe between the target layer and the well pipe. , to ensure that oil and gas wells get their due productivity, and the application of perforating bullets in other aspects is also being discovered and used continuously. [0003] The casing of the perforating bullet is the main component of the perforating bullet. At present, there are two main methods of producing the casing of the perforating bullet: hot extrusion blank and cold extrusion blank. Both methods require the use of draw...
Claims
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IPC IPC(8): B21D37/10B21D37/01B21D22/21
CPCB21D22/21B21D37/01B21D37/10
Inventor 王晓刚王旭辉张少辉
Owner SHANXI XINHUAN POWDER METALLURGY