A cutting cable 3D printing process and its device

A 3D printing and cutting cable technology, which is applied in manufacturing auxiliary devices, 3D object support structures, processing and manufacturing, etc., can solve the problems of insufficient cutting cable processing level, stagnant cutting cable processing technology, and inability to adopt special-shaped tube processing methods, etc. , achieve the effect of fast filling, continuous printing, and improved yield

Active Publication Date: 2022-02-25
CHONGQING VOCATIONAL INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the round tube is filled with explosives in advance, the existing special-shaped tube processing method cannot be used, which is one of the reasons why the cutting wire processing technology has been stagnant for decades.
Moreover, the current level of cutting wire processing in China is not as good as that achieved by NASA in the United States.

Method used

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  • A cutting cable 3D printing process and its device
  • A cutting cable 3D printing process and its device
  • A cutting cable 3D printing process and its device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The cutting cable 3D printing process of the present embodiment comprises the following steps:

[0043] S1, the explosives are adjusted into fat. It is generally prepared by combining acetone, dimethyl sulfoxide and some mixed solvents with RDX. In this embodiment, the paraffin passivation of RDX can be adopted, and then the RDX can be dissolved with acetone and prepared into a viscous fat. At the same time, some kinetic agents can be added to adjust the detonation temperature. Generally, 1700A current short circuit is required to detonate the RDX after passivation by paraffin to detonate the sensitive agent, and then pass the sensitive agent to increase the temperature to detonate the RDX. Therefore, the detonation of RDX after paraffin passivation The temperature is at least several thousand degrees Celsius (the temperature of RDX is at least tens of thousands of degrees Celsius after detonation), and the temperature during 3D printing is controlled at about 200 degr...

Embodiment 2

[0048] see Figure 1-Figure 27 , this embodiment is to realize the device for printing the inner tube in Embodiment 1, including:

[0049] The printing module A prints out the inner tube 100 with melted plastic as the raw material, and at the same time fills the inner cavity of the inner tube with a fat-like explosive 200;

[0050] The guide mechanism keeps the printed inner tube continuously extended in the axial direction to obtain a longer inner tube by continuously moving downwards, and at the same time ensures that the printing end of the inner tube and the printing module does not move to ensure printing accuracy.

[0051] The winding mechanism B is used for winding the printed inner tube 100, so as to realize the processing of a longer inner tube.

[0052] see Figure 1-Figure 13 , the printing module A includes a printing bottom plate A110 and a printing top plate A120, the printing bottom plate A110 and the printing top plate A120 are connected by at least four prin...

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Abstract

The invention discloses a cutting cable 3D printing process and its device. The cutting cable 3D printing device includes a printing module, which uses melted plastic as a raw material to print out an inner tube, and at the same time fills the inner cavity of the inner tube with a fat-like explosive; a guiding mechanism , by continuously moving down, the printed inner tube is continuously extended in the axial direction to obtain a longer inner tube, and at the same time, the printing end surface of the inner tube and the printing module is kept still to ensure printing accuracy. The winding mechanism is used for winding the printed inner tube, so that the processing of the longer inner tube can be realized. The present invention adopts 3D printing inner tube, injects fat-like explosive into the inner tube at the same time, then manufactures the outer tube separately, finally puts the inner tube into the outer tube, and stretches the outer tube so that the outer tube can clamp the inner tube . Its efficiency is much higher than that of traditional cutting wires, and the cross-section of cutting wires obtained is relatively standard, so the performance of cutting wires is also better, which is a revolutionary breakthrough in the manufacturing technology of cutting wires.

Description

technical field [0001] The invention relates to the processing technology of energy-gathering cutting wires, in particular to a cutting wire 3D printing process and a device thereof. Background technique [0002] The energy-gathering cutting cable is a kind of energy-gathering effect (commonly referred to as "Monroe effect"), that is, after the explosion of the explosive, the detonation product is cut at high temperature and high pressure to cut the metal material, and the blasting fragments are basically along the normal direction of the explosive surface. flying outside. After the charge with grooves is detonated, there will be a converging flow of explosion products with high speed and pressure on the axis of the groove (energy gathering angle), and the chemical gas released by the explosion of the explosive will be within a certain range. Can concentrate. [0003] In the applicant's previous Chinese invention patent application (application number 2020104732555), the i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/106B29C64/20B29C64/379B29C64/30B33Y10/00B33Y30/00B33Y40/00B33Y40/20B33Y70/10
CPCB29C64/106B29C64/20B29C64/379B29C64/30B33Y10/00B33Y30/00B33Y40/00B33Y40/20B33Y70/10
Inventor 胡韶华
Owner CHONGQING VOCATIONAL INST OF ENG
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