阅读说明：本技术 工业数码电子雷管抗冲击波测试装置及测试方法 (Industrial digital electronic detonator shock wave resistance testing device and testing method ) 是由 岳彩新 夏光 杨文� 何振 高玉刚 李勇 赵晓莉 孙晨 秦婷 周晓红 王傲 周 于 2021-08-12 设计创作，主要内容包括：本发明公开了一种工业数码电子雷管抗冲击波测试装置及测试方法,包括起吊支架、设置在起吊支架下方的爆炸水箱以及设置在爆炸水箱侧方的测试固定架；所述起吊支架顶部安装有横向滑轨,且横向滑轨滑动面向下设置,所述横向滑轨内滑动设置有起升电机,所述起升电机的输出端通过起升绳连接安装有吊钩。本发明以水作为冲击波传播的介质,试验条件可重复性好；可以定量评价电子雷管抗冲击波的能力,给出能够承受冲击波的压强范围,对于生产企业改进产品结构以及提高产品性能提供了准确的试验数据。(The invention discloses an industrial digital electronic detonator shock wave resistance testing device and a testing method, wherein the testing device comprises a hoisting bracket, an explosion water tank arranged below the hoisting bracket and a testing fixing frame arranged on the side of the explosion water tank; the lifting support is characterized in that a transverse sliding rail is installed at the top of the lifting support, the sliding surface of the transverse sliding rail is arranged downwards, a lifting motor is arranged in the transverse sliding rail in a sliding mode, and the output end of the lifting motor is connected with a lifting hook through a lifting rope. The invention takes water as the medium for shock wave propagation, and the repeatability of test conditions is good; the method can quantitatively evaluate the shock wave resistance of the electronic detonator, provide the pressure intensity range capable of bearing the shock wave, and provide accurate test data for improving the product structure and improving the product performance of a production enterprise.)

1. The device for testing the shock wave resistance of the industrial digital electronic detonator is characterized by comprising a hoisting bracket, an explosion water tank arranged below the hoisting bracket and a test fixing frame arranged on the side of the explosion water tank;

the lifting support is characterized in that a transverse sliding rail is installed at the top of the lifting support, the sliding surface of the transverse sliding rail is arranged downwards, a lifting motor is arranged in the transverse sliding rail in a sliding mode, and the output end of the lifting motor is connected with a lifting hook through a lifting rope.

2. The apparatus for testing shock wave resistance of industrial digital electronic detonators according to claim 1, wherein the explosion water tank comprises a barrel body, a shock pad is mounted on the bottom surface of the barrel body, and a water inlet and outlet pipe is arranged on the bottom side of the barrel body.

3. The device for testing the shock wave resistance of the industrial digital electronic detonator according to claim 2, wherein the barrel body comprises an outer barrel stainless steel layer, and the outer barrel stainless steel layer is lined with a shock resistance layer.

4. The device for testing the shock wave resistance of the industrial digital electronic detonator according to claim 3, wherein the shock resistant layer is closed-cell plastic foam.

5. The apparatus of claim 1, wherein the test holder comprises a frame body, the frame body is provided with an upper fixing rod and a lower fixing rod at upper and lower surfaces thereof, the upper fixing rod and the lower fixing rod are respectively provided with a plurality of mounting holes at equal intervals, and the top surface of the upper fixing rod is provided with a lifting hook.

6. The apparatus for testing shock wave resistance of industrial digital electronic detonators according to claim 1, wherein the top surface of the lifting motor is provided with a slide block adapted to the transverse slide rail, and the lifting motor is slidably mounted on the transverse slide rail through the slide block.

7. The apparatus for testing shock wave resistance of industrial digital electronic detonators according to claim 1, wherein the transverse slide rail is an electrically controlled slide rail.

8. The method for testing the shock wave resistance testing device of the industrial digital electronic detonator according to any one of claims 1 to 7, wherein the method comprises the following steps:

s1, electronic detonators and industrial explosives are used as main explosive packages, the upper ends and the lower ends of the explosive packages are hung on a test fixing frame through connecting wires, the tested electronic detonators and the underwater shock wave sensors are hung on the test fixing frame by the same method of hanging the main explosive packages, the centers of the main explosive packages, the chips of the tested electronic detonators and the underwater shock wave sensors are located at the same horizontal position, the underwater shock wave sensors are 40-50cm away from the center of the main explosive package, and the underwater shock wave sensors are connected with an underwater shock wave test system;

s2, carrying out primary test, wherein the mass of the industrial explosive is 15g, the distance between the tested electronic detonator and the main explosive package is 20cm, hoisting the test fixing frame into the explosion water tank, and enabling the main explosive package to be located 0.9-1m below the water surface;

s3, setting delay time 0ms by using the electronic detonator in the main explosive package, setting delay time 20ms by using the tested electronic detonator, detonating the electronic detonator by using an initiator, and observing the state of the tested electronic detonator by using the hoisting test fixing frame after the detonation is finished;

s4, if the electronic detonator is not detonated, the dose of the main explosive is unchanged, the distance between the tested electronic detonator and the main explosive charge is continuously increased by taking d as 5cm as gradient, repeating the steps of S2 and S3 until the tested electronic detonator can be normally detonated, and at the moment, the horizontal distance L between the tested electronic detonator and the main explosive is equal to the horizontal distance L; recording the pressure P at the underwater shock wave sensor by an underwater shock wave tester_cAnd in the repeated operation process of the steps S2 and S3, changing the horizontal distance R between the underwater shock wave sensor and the main explosive, and fitting to obtain alpha and beta, thus obtaining a calculation formula of the peak pressure of the underwater explosion shock wave of the industrial explosive:

wherein, P_mIn order to calculate the peak value pressure of the m-type industrial explosive shock wave, the unit is Pa, W is the weight of the main explosive package and the unit is Kg, R is the horizontal distance between the main explosive package and the sensitive element of the underwater shock wave sensor or the centroid of the tested electronic detonator, and R is the horizontal distance between the main explosive package and the centroid of the tested electronic detonator₀The radius of the main charge package is m, and alpha and beta are coefficients and indexes;

the distance L that the tested electronic detonator can normally detonate is brought into R in the formula, and the critical pressure P of the electronic detonator influenced by the shock wave can be obtained_L；

S5, if the electronic detonator explodes, the delay time of the electronic detonator of the main explosive is still set to be 0ms, the test sample is detonated without setting the delay time, the main explosive is detonated, and the test result is observed;

s6, if the electronic detonator still explodes, the distance between the tested sample and the main explosive package is continuously increased by taking d as a gradient of 5cm until the tested electronic detonator does not explode, and S5 is repeated subsequently, if the electronic detonator does not explode, the distance between the tested sample and the main explosive package is continuously reduced by taking d as a gradient of 5cm, and S5 is repeated until the tested electronic detonator explodes;

and S7, expanding the gradient distance of 5cm, and repeating S3, wherein if the electronic detonator can be detonated normally, the tested electronic detonator can bear the shock wave effect and is not influenced.

9. The device and method for testing shock wave resistance of industrial digital electronic detonators according to claim 8, wherein the main blasting explosive package, the tested electronic detonators and the underwater shock wave sensor are all suspended between an upper fixing rod and a lower fixing rod through connecting wires, two ends of the connecting wires are respectively fastened in mounting holes on the upper fixing rod and the lower fixing rod, and the cores of the tested electronic detonators and the main blasting explosive package are located on the same plane.

10. The device and method for testing shock wave of industrial digital electronic detonator according to claim 8, wherein the tested electronic detonator is observed in S3, if the electronic detonator is not exploded, the state of the electronic detonator is detected by the detonator, if the chip of the electronic detonator cannot communicate, the tip is damaged or the capacitor and other components are damaged, it can be determined that "hard damage" occurs due to the shock wave, if the electronic detonator can communicate and detonate normally, it is determined as "soft damage", and not only the electronic detonator cannot be detonated normally due to the shock wave, but also the function is recovered after the shock wave.

Technical Field

The invention relates to the technical field of detonator testing devices, in particular to an industrial digital electronic detonator shock wave resistance testing device and a testing method.

Background

The electronic detonator is also called a digital detonator, a digital electronic detonator or an industrial digital electronic detonator, namely an electronic detonator which controls the detonation process by adopting an electronic control module. As a mainstream product of the future development trend of the initiation equipment in China, the technical level of the electronic detonator is greatly improved, and the electronic detonator is widely applied to blasting engineering. Meanwhile, the reliability research of the electronic detonator is not sufficient, and in the actual blasting operation process, the blasting shock wave generated by blasting the blast hole first acts on the electronic detonator in the blasting hole later, so that the phenomenon of gun miss and gun loss due to miss blasting sometimes occurs, and the method is particularly prominent in roadway blasting construction.

However, there is no complete device and method for evaluating damage of an explosion shock wave to an industrial digital electronic detonator, so how to provide a device and a method for testing an impact wave of an industrial digital electronic detonator is a problem that needs to be solved by those skilled in the art.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention aims to provide the device and the method for testing the shock wave resistance of the industrial digital electronic detonator, wherein water is used as a medium for propagating the shock wave, and the repeatability of test conditions is good; the method can quantitatively evaluate the shock wave resistance of the electronic detonator, provide the pressure intensity range capable of bearing the shock wave, and provide accurate test data for improving the product structure and improving the product performance of a production enterprise.

The device for testing the shock wave resistance of the industrial digital electronic detonator comprises a lifting bracket, an explosion water tank arranged below the lifting bracket and a test fixing frame arranged on the side of the explosion water tank, wherein the lifting bracket is arranged on the upper part of the explosion water tank;

the lifting support is characterized in that a transverse sliding rail is installed at the top of the lifting support, the sliding surface of the transverse sliding rail is arranged downwards, a lifting motor is arranged in the transverse sliding rail in a sliding mode, and the output end of the lifting motor is connected with a lifting hook through a lifting rope.

Preferably, the explosion water tank comprises a tank body, a damping pad is mounted on the bottom surface of the tank body, and a water inlet pipe and a water outlet pipe are arranged on the bottom side of the tank body.

Preferably, the barrel body comprises an outer barrel stainless steel layer, and an impact resistant layer is lined in the outer barrel stainless steel layer.

Preferably, the impact resistant layer is a closed cell plastic foam.

Preferably, the test fixing frame comprises a frame body, fixing rods which are arranged in a crossed mode are installed on the upper surface and the lower surface of the frame body, a plurality of installing holes are formed in the side faces of the fixing rods at equal intervals from top to bottom, and lifting hooks are installed on the top faces of the fixing rods.

Preferably, the top surface of the lifting motor is provided with a sliding block matched with the transverse sliding rail, and the lifting motor is slidably mounted on the transverse sliding rail through the sliding block.

Preferably, the transverse slide rail is an electric control slide rail.

Preferably, the test method comprises the following steps:

s1, taking 1-generation electronic detonators and industrial explosives as main explosive packages, exploding in water to generate shock waves, manually rolling a shell of the main explosive package with waterproof kraft paper to form the shell, wherein the inner diameter of the shell is 25mm, the length of the shell is 25mm, the upper end and the lower end of the explosive packages are firmly tied and hung on a test fixing frame by connecting wires, hanging the tested electronic detonators and an underwater shock wave sensor on the test fixing frame by the same method, enabling the main explosive packages, chips of the tested electronic detonators and the centroid of the underwater shock wave sensor to be at the same horizontal position, enabling the underwater shock wave sensor to be 40-50cm away from the centroid of the main explosive packages, enabling the tested electronic detonators to be 5-20cm away from the centroid of the main explosive packages, and connecting the underwater shock wave sensor with an underwater explosion shock wave test system;

s2, carrying out primary test, wherein the mass of the industrial explosive is 15g, the distance between a tested sample and a main explosive package is 20cm, and hoisting a test fixing frame into an explosion water tank by using a hoisting bracket so that the main explosive package is located 0.9-1m below the water surface;

s3, setting delay time 0ms by adopting the electronic detonator in the main explosive package, setting delay time 20ms by adopting the electronic detonator to be tested, detonating the electronic detonator by using the detonator, hoisting the test fixing frame by using the hoisting bracket after the detonation is finished, and observing the electronic detonator to be tested;

and S4, if the electronic detonator is not detonated, the dose of the main explosive is unchanged, the distance between the tested sample and the main explosive charge is continuously increased by taking d as 5cm as a gradient, the operation is repeated according to the steps S2 and S3 until the electronic detonator can be normally detonated, and the horizontal distance L between the tested electronic detonator and the main explosive charge is at the moment. Recording pressure P at underwater shock wave sensor by underwater shock wave tester_cAnd in the repeated operation process of the steps S2 and S3, changing the horizontal distance R between the underwater shock wave sensor and the main explosive, and fitting to obtain alpha and beta, thus obtaining a calculation formula of the peak pressure of the underwater explosion shock wave of the industrial explosive:

wherein, P_mIn order to calculate the peak pressure of the shock wave of the m-type industrial explosive, the unit is Pa, W is the weight of the main explosive package, the unit is Kg, R is the main explosive package and waterHorizontal distance, R, of lower shock wave sensor sensitive element or tested electronic detonator centroid₀The radius of the main charge package is m, and alpha and beta are coefficients and indexes;

the distance L that the tested electronic detonator can normally detonate is brought into R in the formula, and the critical pressure P of the electronic detonator influenced by the shock wave can be obtained_L；

S5, if the electronic detonator explodes, the delay time of the electronic detonator of the main explosive is still set to be 0ms, the test sample is detonated without setting the delay time, the main explosive is detonated, and the test result is observed;

s6, if the electronic detonator still explodes, the distance between the tested sample and the main explosive package is continuously increased by taking d as a gradient of 5cm until the tested electronic detonator does not explode, and S5 is repeated subsequently, if the electronic detonator does not explode, the distance between the tested sample and the main explosive package is continuously reduced by taking d as a gradient of 5cm, and S5 is repeated until the tested electronic detonator explodes;

and S7, expanding the gradient distance of 5cm, and repeating S3, wherein if the electronic detonator can be detonated normally, the tested electronic detonator can bear the shock wave effect and is not influenced.

Preferably, the main explosive package, the tested electronic detonator and the underwater shock wave sensor are all suspended between the upper fixing rod and the lower fixing rod through connecting wires, two ends of each connecting wire are respectively fastened in mounting holes in the upper fixing rod and the lower fixing rod, and the chip of the tested electronic detonator and the centroid of the main explosive package are located on the same plane.

Preferably, the tested electronic detonator is observed in S3, if the electronic detonator is not detonated, the state of the electronic detonator is detected by the initiator, if the electronic detonator chip cannot communicate, the tip is damaged, or other components such as a capacitor are damaged, it can be determined that "hard damage" occurs due to the shock wave, if the electronic detonator can be detonated by normal communication, it is determined as "soft damage", and the electronic detonator cannot be detonated normally by the shock wave, and the function is restored after the shock effect.

Compared with the prior art, the invention has the beneficial effects that:

(1) the invention takes water as the propagation medium of the shock wave, and has the same state equation under the conditions of normal temperature and normal pressure because the water has the characteristics of homogeneity and micro compressibility. When the main explosive bag explodes in water, shock waves with leap and strong discontinuity are excited at the interface of explosive explosion products and water, the waveform characteristics are obvious, a system is easy to collect characteristic numerical data, and the peak pressure P of the shock waves_mThe performance of the tested sample is characterized, and therefore, the repeatability is high.

(2) The invention uses the peak pressure P of the explosion shock wave_mAs a quantitative index for measuring the shock wave resistance of the electronic detonator, the pressure range capable of bearing the shock wave is given through a system test sample, and accurate test data are provided for improving the product structure and improving the product performance of a production enterprise.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural diagram of an industrial digital electronic detonator shock wave resistance testing device provided by the invention;

FIG. 2 is a schematic view of the structure of the explosion tank of FIG. 1 according to the present invention;

FIG. 3 is a schematic structural view of the test fixture shown in FIG. 1 according to the present invention;

FIG. 4 is a flow chart of the shock wave resistance testing method for the industrial digital electronic detonator provided by the invention.

In the figure: 1-lifting support, 2-explosion water tank, 21-barrel body, 211-outer barrel stainless steel layer, 212-impact resistant layer, 22-shock pad, 23-water inlet and outlet pipe, 3-test fixing frame, 31-frame body, 32-fixing rod, 33-lifting hook, 34-mounting hole, 4-lifting motor, 5-transverse slide rail, 6-lifting rope and 7-lifting hook.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

Referring to fig. 1-3, an industrial digital electronic detonator shock wave resistance testing device comprises a hoisting bracket 1, an explosion water tank 2 arranged below the hoisting bracket 1, and a testing fixing frame 3 arranged at the side of the explosion water tank 2;

horizontal slide rail 5 is installed at 1 top of the support that lifts by crane, and 5 sliding surfaces of horizontal slide rail set up downwards, and it plays to rise motor 4 to slide to be provided with in horizontal slide rail 5, plays to rise the output of motor 4 and installs lifting hook 7 through playing to rise 6 connections of rope.

The explosion water tank 2 comprises a tank body 21, a shock pad 22 is arranged on the bottom surface of the tank body 21, and a water inlet and outlet pipe 23 is arranged on the bottom side of the tank body 21. The barrel body 21 comprises an outer barrel stainless steel layer 211, and an impact resistant layer 212 is lined in the outer barrel stainless steel layer 211. Impact resistant layer 212 is a closed cell plastic foam having a thickness of 40 mm.

In the embodiment, the explosion water tank 2 is used for containing tap water to simulate an underwater explosion environment of a detonator, is designed to be cylindrical, has an inner diameter of 1.8m, a depth of 1.8m and a wall thickness of 30mm, adopts a high-strength stainless steel material, adopts a seamless welding process, reserves 2 lifting water tank handles, is provided with a water supply and drainage system, and the explosion water tank 2 must ensure no leakage.

The test fixing frame 3 comprises a frame body 31, the test fixing frame 3 is used for fixing a sample and a sensor assembly, fixing rods 32 which are arranged in a crossed mode are installed on the upper surface and the lower surface of the frame body 31, a plurality of installing holes 34 are formed in the side surfaces of the upper fixing rod 32 and the lower fixing rod 32 at equal intervals, and lifting hooks 33 are installed on the top surfaces of the fixing rods 32. The top surface of the lifting motor 4 is provided with a sliding block matched with the transverse sliding rail 5, and the lifting motor 4 is slidably arranged on the transverse sliding rail 5 through the sliding block. The transverse slide rail 5 is an electric control slide rail. The lifting of the test fixing frame 3 can be automatically controlled by the controller.

In the embodiment, the shock wave test system is developed by Chengtai test technology, and consists of a BLAST-PRO shock wave tester and a PCB underwater shock wave sensor. The PCB underwater shock wave sensor is a 138 series ICP tourmaline underwater explosion pressure sensor, the electronic detonator is a commercially available electronic detonator, the highest sampling frequency of the shock wave tester is 10MHz (0.25 mus), the lowest sampling frequency is 250kHz (4 mus), and the dynamic response is 100 dB; the highest response pressure of the shock wave sensor is 345MPa, the sensitivity is 0.073mV/kPa, and the resolution is 0.14 kPa; the test requirements of the explosion shock wave and the air bubble pulse wave in water can be met.

The test method in example 1 comprises the following steps:

s1, using 1 st No. 8 electronic detonator, industrial explosive and first-class rock emulsion explosive with detonation velocity more than or equal to 4200m/S as main explosive package to explode in water to generate shock wave, wherein the shell is made by manually rolling waterproof kraft paper, has inner diameter of 25mm and length of 25mm, is approximately spherical, and has charging radius R₀The upper end and the lower end of the explosive package are firmly tied and hung on the test fixing frame 3 by connecting wires, the tested electronic detonator and the underwater shock wave sensor are also hung on the test fixing frame 3 by adopting the same method, the centers of the main explosive package, the chip of the tested electronic detonator and the underwater shock wave sensor are positioned at the same horizontal position, the underwater shock wave sensor is 40cm away from the center of the main explosive package, the tested electronic detonator is 5cm away from the center of the main explosive package, and the underwater shock wave sensor is connected with an underwater shock wave test system;

s2, carrying out primary test, wherein the mass of the industrial explosive is 15g, the distance between a tested sample and a main explosive package is 20cm, and hoisting a test fixing frame 3 into an explosion water tank 2 by using a hoisting bracket 1 to enable the main explosive package to be located 0.9m below the water surface;

s3, setting delay time 0ms by adopting the electronic detonator in the main explosive package, setting delay time 20ms by adopting the electronic detonator to be tested, detonating the electronic detonator by using the detonator, hoisting the test fixing frame 3 by using the hoisting bracket 1 after the detonation is finished, and observing the electronic detonator to be tested;

and S3, observing the tested electronic detonator, detecting the state of the electronic detonator by using an initiator if the electronic detonator is not exploded, judging that the electronic detonator is hard damaged under the action of shock waves if the chip of the electronic detonator cannot communicate, the explosive head is damaged or other components such as capacitors and the like are damaged, judging that the electronic detonator is soft damaged if the electronic detonator can normally communicate and explode, and recovering the function after the electronic detonator is impacted.

S4, ifAnd (3) the electronic detonator is not exploded, the dose of the main explosive is not changed, the distance between the tested sample and the main explosive charge is continuously increased by taking d as 5cm as gradient, the operation is repeated according to the steps S2 and S3 until the electronic detonator can be normally detonated, and the horizontal distance L between the tested electronic detonator and the main explosive charge is at the moment. Recording pressure P at underwater shock wave sensor by underwater shock wave tester_cAnd in the repeated operation process of the steps S2 and S3, changing the horizontal distance R between the underwater shock wave sensor and the main explosive, and fitting to obtain alpha and beta, thus obtaining a calculation formula of the peak pressure of the underwater explosion shock wave of the industrial explosive:

wherein, P_mIn order to calculate the peak value pressure of the m-type industrial explosive shock wave, the unit is Pa, W is the weight of the main explosive package and the unit is Kg, R is the horizontal distance between the main explosive package and the sensitive element of the underwater shock wave sensor or the centroid of the tested electronic detonator, and R is the horizontal distance between the main explosive package and the centroid of the tested electronic detonator₀The radius of the main charge package is m, and alpha and beta are coefficients and indexes;

the distance L that the tested electronic detonator can normally detonate is brought into R in the formula, and the critical pressure P of the electronic detonator influenced by the shock wave can be obtained_L；

And (4) carrying out steps S1 to S4, changing the distance R of the underwater shock wave testing system within a distance of 40-50cm, wherein R is 40cm in the embodiment, and after data are measured, fitting to obtain an underwater explosion shock wave calculation formula of the explosive. When the electronic detonator obtained by S4 can normally detonate and the distance between the tested electronic detonator and the main charge is L, substituting L into a formula (R in the formula) to obtain the pressure at the tested electronic detonator.

S5, if the electronic detonator explodes, the delay time of the electronic detonator of the main explosive is still set to be 0ms, the test sample is detonated without setting the delay time, the main explosive is detonated, and the test result is observed;

s6, if the electronic detonator still explodes, the distance between the tested sample and the main explosive package is continuously increased by taking d as a gradient of 5cm until the tested electronic detonator does not explode, and S5 is repeated subsequently, if the electronic detonator does not explode, the distance between the tested sample and the main explosive package is continuously reduced by taking d as a gradient of 5cm, and S5 is repeated until the tested electronic detonator explodes;

and S7, expanding the gradient distance of 5cm, and repeating S3, wherein if the electronic detonator can be detonated normally, the tested electronic detonator can bear the shock wave effect and is not influenced.

The main explosive package, the tested electronic detonator and the underwater shock wave sensor are all hung between the upper fixing rod 32 and the lower fixing rod 32 through connecting wires, two ends of each connecting wire are respectively fastened in the mounting holes 34 on the upper fixing rod 32 and the lower fixing rod 32, and the chip of the tested electronic detonator and the centroid of the main explosive package are located on the same plane.

Example 2: the device and the method of the embodiment have the same steps as the embodiment 1, and different parameters are as follows: the underwater shock wave sensor is 50cm away from the center of the main explosive package, the tested electronic detonator is 20cm away from the center of the main explosive package, and the main explosive package is 1m below the water surface.

Example 3: the device and the method of the embodiment have the same steps as the embodiment 1, and different parameters are as follows: the underwater shock wave sensor is arranged at a position which is 45cm away from the shape center R of the main explosive package, the tested electronic detonator is arranged at a position which is 15cm away from the shape center R of the main explosive package, and the main explosive package is arranged at a position which is 0.95m below the water surface.

The m-type electronic detonator in-water shock wave resistance was tested according to the procedure of example 1, and the test results are shown in table 1:

TABLE 1

It should be noted that "damage" represents that the tested electronic detonator cannot be normally detonated when being excited and the parts are physically damaged; "intact (not exploded)" means that the tested electronic detonator cannot be normally detonated and is detected to be intact by the detonator.

The invention uses the peak pressure P of the explosion shock wave_mAs a quantitative index for measuring the shock wave resistance of the electronic detonator, the pressure range capable of bearing the shock wave is given through a system test sample, as shown in example 1, the pressure range of the hard damage and the soft damage is 112.27-51.69MPa, and test data are provided for improving the product structure and improving the product performance of a production enterprise.

The invention takes water as the propagation medium of the shock wave, and has the same state equation under the conditions of normal temperature and normal pressure because the water has the characteristics of homogeneity and micro compressibility. When the main explosive bag explodes in water, shock waves with leap and strong discontinuity are excited at the interface of explosive explosion products and water, the waveform characteristics are obvious, a system is easy to collect characteristic numerical data, and the peak pressure P of the shock waves_mThe performance of the tested sample is characterized, and therefore, the repeatability is high.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.