KR101455677B1 - Maintenance method for disuse cartridge case using cooling process and plating process - Google Patents

Abstract

The present invention relate to a maintenance method for a disused cartridge case using a cooling process and a plating process and, more specifically, to a maintenance method for a disused cartridge case which performs a cooling process of extremely low temperature before separating a detonator or a detonator assembly from the cartridge case during a maintenance process replacing propelling charge and detonator assembly with new products in the cartridge case of high explosives that are in long-term storage, to lower coupling force between the cartridge case and the detonator and the detonator assembly by shrinkage caused by temperature, to be able to separate with less force, and to minimize transformation of the cartridge case, such as minimizing an expanded detonator assembling hole by a plating process, caused by impact, to prevent the structural strength of the cartridge case from being degraded.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cooling method and a plating method,

More particularly, the present invention relates to a method for repairing lung medicine using a cooling process and a plating process. More particularly, the present invention relates to a method of replacing a propellant charge and a primer combination with a new one, The cooling process of the cryogenic temperature is performed before the separation, and the weakening of the coupling between the primer and the primer or the primer is made possible by the contraction due to the temperature, so that the primer can be separated by a small force. The present invention relates to a maintenance method for a lung medicine which can minimize the deformation of a medicament caused by a hitting,

Generally, high bombs consist of warheads that are combined with fuses and fuses and those that are combined into warheads.

When the ammunition is fired, it explodes due to the impact at the target point, which is used to ignite the high explosives in the warhead. Mostly it is made of metal, and the part containing the chemical agent is piled up in a closed metal film. It is possible.

The warhead is a bullet explosion that causes the bullet to rupture and cause a debris effect and a storm effect. The bullet is enclosed by the bullet, and can be used for a long period of time.

It is made of brass or steel, and the warhead and the rifle are separated, and the primitive coupling is formed in the center of the inside lower side.

The bombs kept for long periods were discarded and replaced with new ones because there was a risk of blindness due to aging of primer and primer and volatilization of propellant stabilizer.

In recent years, in order to recycle the medicines, it has been proposed to maintain the medicines to their fullest extent and to replace the primer assemblies (primer and ignition conditions) with the propulsion charge.

In other words, the process of existing medicines maintenance includes separation of propulsion charge, ignition conditions, detachment of primer, detachment of primer assembly from compromise, reduction of diameter of primer joint and standardization process of primer.

Herein, the detachment of the primer from the pill is performed by hitting the primer in the axial direction. In this case, since the primer and the weakener are strong enough to bind the primer, the primer can separate the primer only when the primer is applied to the primer. Therefore, it is necessary to study the method of separating the primer from the labyrinth while preventing the primer from being used for recycling of resources, because the primer is destroyed because the primer is damaged.

In addition, since the primer binding pore formed at the bottom of the pouch is extended by the coupling of the primer, a process of reducing the extended primer binding pore after the primer separation is necessary. In the past, the only way to reduce the size of the bottom of the bridge by striking the floor of the medicament is to reduce the size of the priming joint so that the priming joint is filled with the reduced amount. Since this is a method of deforming the bottom of the bridge by a simple striking, there is a problem that deformation of the bridge may occur during the striking process. Therefore, it is necessary to study the process of reducing the priming joint by a new method to solve this problem.

In Korean Registered Patent No. 10-1283453 (Registered on Mar. 07, 2013), a method for maintaining the primer coupling of the 105 mm artillery ammunition ammunition was developed.

In the registered invention, the drill for removing the propellant charge is used as a drill for machining to form a widened primer coupling hole having a wider diameter than the conventional one, and the primer is removed, and the diameter of the primer coupling hole is reduced through the primer coupling fixture, After the standardization of the fittings, a new primer is installed to reuse the pseudonym. That is, the primer fixture fixture, which is a device for reducing the primer plug fixture, presses the primer fixture around the primer fixture to reduce the diameter of the primer fixture.

However, in the registered invention, drill is used to remove a primer installed in a primer coupling hole, so that primer priming by a drill can be performed, and damage to the primer primer can be damaged as well as damage to the primer primer. However, only the problem of reducing the diameter of the priming ball joint using only the priming ball fixation jig is solved, and the reduction of the diameter of the priming ball ball only suggests the ball striking method.

In addition to the method of using the drill to detach a primer from the primer coupling unit, the priming method may be applied by pushing a primer in one direction inside or outside the primer. This is because the risk of detonating by drill is somewhat reduced, but there is a risk that the primer is ignited by the pressure applied due to the separation due to the pressure exceeding the coupling force of the primer and primer coupling sections. The problem with the damage is still intrinsic.

Accordingly, the present invention provides a method for repairing a lung disease using a cooling process and a plating process,

The purpose of this research is to provide a maintenance method that makes it easier to separate the primer from the labyrinth by weakening the cohesion between the primer and the primer by cooling the primer from the Primer's primer binding cortex do.

Another object of the present invention is to provide a maintenance method for reducing the diameter of the primer coupling hole of the pillow through the plating process without hitting the bottom of the pillow.

In order to solve the above problems,

A process of removing a propulsion charge to remove a propulsion charge from a battle which separated the warhead, and a primer separation process of separating the primer assembly, which is a combination of a primer and an ignition contract, A reduction process of a primer coupling process that reduces the diameter of the primer coupling hole of the bottom of the detachment of the primer to electroplating and a process of reducing the diameter of the primer primer, In the maintenance method, before the primer pressure separation process, the primer and the primer primer are cooled by putting the primer combined with the primer primer into the cooling device, so that the binding force between primer primer primer primer primer primer and primer primer primer primer primer A lower cooling process is performed; In the process of reducing the primer coupling hole, the anode is immersed in a plating bath, the anode rod of the metal material is inserted into the same shaft only on the primer coupling port, the inner surface of the primer coupling hole and the outer surface of the anode rod are spaced apart, And plating is performed on the inner surface of the primer-bonding hole by the redox reaction of the cathode rod and the primer-binding sphere through the electrolytic solution.

Between the propulsion charge removal process and the cooling process, an ignition condition separation process for separating the ignition conditions from the primer coupled to the primer coupling unit may be further performed.

Also, the cooling process may be performed at a temperature of -50 to -10 DEG C for 2 to 20 minutes.

Between the process of shrinking the primer plug and the process of bonding the new primer to the primer, a secondary electrode is inserted into the inside of the sleeve so that the inner surface of the sleeve is plated by the redox reaction of the auxiliary electrode and the medicament tube. Can be achieved.

The plating may be performed by first performing copper plating, performing nickel plating to increase the surface strength, and then brass plating.

Further, the coating layer removing process may be further performed to remove the coating layer by polishing the bottom surface and the side surface of the inner surface of the tank prior to the chemical plating process with an iron brush.

The cooling method of the present invention by the above-mentioned solving means and the method of maintaining a close chemical solution using the plating process,

In the cooling process, the shrinkage ratio and the shrinkage direction of the primer and the pseudolite are different from each other, so that the bonding force between the primer and the primer can be weakened, thereby reducing the magnitude of the force applied to separate the primer from the primer. Can be prevented.

In addition, the expanded primer-binding pore is reduced through the plating process, thereby reducing the deformation of the pseudo-pore due to the impact, thereby reducing the primer-binding pore.

FIGS. 1A and 1B are schematic views showing a high-bomb configuration and a trade-off between a warhead separation and a propulsion charge.
FIG. 2 is a process diagram of a method for maintaining a lung medicine solution according to the present invention. FIG.
3A and 3B are schematic views for explaining a plating process according to the present invention.
4 is a schematic perspective view showing an embodiment of a brush according to the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the accompanying drawings.

FIG. 1A is a cross-sectional view of a high explosive 100 according to an embodiment of the present invention, illustrating a 105 mm bomb. Referring to FIG. 1, a bullet 120 having a new bulb 110 formed at a front end thereof and a weak bulb 10 for storing a gunpowder coupled to the bulb bottom to provide a propulsion force to the bulwark. In this case, the primer 10 is connected to the primer 14 of the bottom 15 and the primer 13 formed inside the primer combines with the primer 13. In the vicinity of the primer, (11) is filled.

The high explosive 100 having such a configuration is ignited at the time of hitting the primer 14 and the ignition force is transmitted to the ignition condition 13 at a moment instantaneously to ignite the propellant charge 11 to rapidly produce gas, So that the warhead 120 is fired forward.

Thus, the high explosive (100) may be blamed for deteriorating the firepower of the explosives due to long storage, so that when the battery is consumed for a certain period of time, the explosive medicine is replaced to replace the explosive.

A brief description of the maintenance process of the high bombs will be described with reference to FIG. 2,

First, the process of separating the warhead from the rifle, the process of removing the propulsion charge inside the rifle where the warhead is separated, is performed sequentially. Next, the detachment process of the primer assembly separating the primer assembly (primer + ignition conditions) A process of reducing the diameter of the primer joint at the bottom of the medaka that separates the primer complex, a process of standardizing the reduced primer coupling, a process of standardizing the diameter of the medaka entrance, and a process of descaling the interior A coating process for rust prevention, a new primer coupling process for attaching a primer primer to a primer primer, and a primer priming primer for a new primer primer coupled primer and combining the primer.

As a method for separating the primer or the primer complex from the primer during the above process, a technique of separating primer primer or primer primer by applying a load in the direction of the slow axis has been applied. The process of separating the primer-binding body by applying such a load is performed only when a load equal to or greater than the binding force between the primer coupling agent and the weak primer coupling is applied, so that the primer is ignited due to a considerably large load, , And detachment, which may lead to deformation of the primer-binding sphere.

Accordingly, the present invention provides a method of reducing the load applied to the primer assembly by reducing the bonding force between the primer primer and the primer primer primer due to the contraction of the primer by performing a cooling process before the primer primer separation step, .

That is, the present invention inserts a weakened drug coupled with a primer complex into a cooling device and performs a cooling process in a temperature range of -50 to -10 ° C for 2 to 20 minutes so that the weakened drug and the primer complex contract each other. Herein, since the primer of the primer assembly has a disk cross-sectional area, the primer shrinks due to the central axis, but the bottom of the primer having the primer-binding primer connecting the primer has a circular cross-section, The amount of contraction of the side surface in the direction of the central axis is relatively lower than that of the primer. Therefore, the coupling force due to the surface contact between the primer and the primer of the primer complex is lowered due to the difference in the minute shrinkage, so that the primer primer or primer primer is easily separated from the primer primer .

The cooling process is performed for 2 to 20 minutes in the temperature range of -50 to -10 ° C. as described above. The inner chamber of the cooling device is formed into a dry atmosphere without water vapor. As a result, It is preferable to prevent the bonding agent from adhering. Also, the cooling process can be set within the above-mentioned temperature range. As the temperature is lower, the cooling time can be shortened. The cooling time is preferably gradually lowered at a temperature of about -40 to -30 캜 for 4 to 6 minutes, Is cooled to the same temperature until the thermal equilibrium is achieved.

In addition, in the cooling process, the ignition condition separation process is performed in which the ignition contract is detached from the primer and the ignition condition constituting the primer assembly is placed in the cooling device. Then, So that cooling can be performed.

On the other hand, a primer coupling reduction process is performed to reduce the diameter of the primer coupling hole formed at the bottom of the detachment of the primer or primer.

In the present invention, the process of scaling down the priming electrode is performed by electroplating, and various plating methods including vacuum deposition may be applied.

3A, the negative electrode 10 is immersed in the plating tank 20 containing the electrolytic solution, the negative electrode is connected to the negative electrode 10 to form the negative electrode, ) Line is connected to the positive electrode bar 21 of the metal material and then flows in the same axis as the weakening coupling port 16 and is arranged so that the inner surface of the positive electrode rod 21 and the capillary coupling hole are close to each other, And a reduction reaction is generated on the inner surface of the primer coupling hole 16 to intensively perform plating on the inner surface of the primer hole.

The anode rod material may be a metal material to be plated. In other words, a copper (bipolar) rod is used for plating copper (copper), and preferably a copper alloy is used.

In addition, plating may be performed using one metal material, or a plurality of metal materials may be plated in multiple layers by plating. For example, copper plating may be performed first to reduce the size of the primer bond, nickel plating may be performed to increase the strength of the plated surface, and then brass may be plated to enhance corrosion resistance and heat resistance. In addition, And the plating step can be adjusted, for example, the coupling hole can be reduced.

Examples of the electrolyte used include ethylene carbonate (EC), propylene carbonate (PC), fluoro-ethylene carbonate (FEC), and trifluoropropylene carbonate (TFPC). In addition, various known electrolytes can be selected.

For example, the plating solution used as the electrolytic solution in the copper plating is prepared by mixing copper cyanide, sodium cyanide, potassium hydroxide, and Rochelle salt, and further additives such as polishes (c-brite # 10, # 30) Can be improved. In addition, the plating solution used as an electrolyte in brass plating is prepared by mixing Sodium Copper Cyanide, Sodium Zinc Cyanide, and sodium cyanide, and further mixed with other commercially available additives to improve physical properties Can be improved.

In addition, the method of the present invention may further include a weak metal plating process for plating the inner surface of the metal tube before the new primer coupling process.

3B, a negative electrode 10 is immersed in the plating tank 20, a negative line is connected to a negative electrode to form a negative electrode, and a positive electrode rod 22 of a metal material to which a positive line is connected, Is inserted into the inside of the chemical tube and is disposed close to the side surface and the bottom surface of the chemical tank. Then, when the power is supplied, the oxidation reaction is performed in the auxiliary anode bar 22 through the electrolytic solution, and a reduction reaction occurs inside the chemical tank 10 It is possible to strengthen the corrosion resistance and heat resistance by plating on the inner surface of the alloy.

Such a chemical plating process may be carried out separately and may be performed simultaneously with the process of reducing the primer coupling process, which is the process of primer coupling process, and may be performed with a single metal or a multi-step process .

Next, when the copper alloy is a copper alloy, the plating process is performed after removing the inner scale by acid treatment. If the steel alloy is weak, the coating layer is removed by polishing the inner surface with a brush can do.

That is, in the case of the iron material weakness, the coating layer is formed by using the varnish in order to prevent bleeding, and the coating layer may cause a problem of peeling without being stably coated. Therefore, the inner surface of the coating is polished using a brush to remove the coating layer Followed by a coating removal process to ensure that plating is achieved.

4, the brush 30 includes a brush main body 31 of a cylindrical body, a side wire protruding portion 32 formed axially in a side surface of the brush main body, and a lower wire formed at a lower end portion of the brush main body And a foot 33. A plurality of side wire folding portions and a bottom wire bundle portion may be formed at regular intervals around the shaft. A rotating shaft 34 for transmitting a rotational force is screwed or hooked to an upper portion of the brush body.

The coating layer removal process may be performed through a descaling process after the priming process is performed when the priming process is performed by the conventional striking method. However, in the present invention, the priming process The surface of the weakened portion is processed and then the plating is performed so that the coated surface is smoothly formed.

The method of the present invention for repairing lungs including the cooling process and the plating process (the primer bonding process, the weaker tubing process)

Before separating the primer or primer complex from the primer, the primer containing the primer or primer complex is put into the primer and the cooling process is performed so that the primer primer and the primer primer or primer primer can be contracted by the temperature decrease. By lowering the binding force between the primer and the primer of the primer, the primer can be separated by a small force, minimizing the primer binding damage that may occur during the priming process.

In addition, the present invention utilizes a plating process to reduce the diameter of the primer plug-fitting, which is separated from the primer. The priming process can be done intensively in the priming electrode by forming the pseudopeptide as a negative electrode and inserting the positive electrode into the priming electrode.

In addition, it is possible to further improve the corrosion resistance and heat resistance of the inner side of the cylinder by further performing the weak metal plating process. After performing the plating process, other additional processes such as standardization of the primer coupling unit are performed, and then a new primer or primer assembly And fill the propulsion charge to complete the maintenance of the lung medicine.

Example 1 - Primer separation test

Separate force tests were performed using a 105mm paddle combined with detached detonators.

Experimental Example 1:

Experimental Example 2: Cooling to -20 캜

Experimental Example 3: Cooling to -40 ° C

Experimental Example 4: Cerebellum separation, recombination,

Experimental Example 5: Receptor after separating the primer and cooling to -40 ° C

Each of the pills was prepared under the conditions of the above Experimental Examples 1 to 5, and the cleavage force test was performed.

As shown, Experimental Example 1 is 1,452 [kg · f], Experimental Example 2 is 1536 [kg · f], Experimental Example 3 is 1512 [kg · f] Was 1277 [kg · f].

It can be seen that when the primer is first separated or recombined from the solution, it is required to separate it after cooling it to -40 ° C in each condition under the condition of separation.

In addition, even in the case of the first separation of the primer, cooling at -20 ° C and -40 ° C can reduce the separation force similar to that of the primer reuniting, thereby minimizing the damage of the primer binding portion of the bottom of the primer.

100: high bomb
110: Fuse 120: Warhead
10: medication
11: Propulsion charge 12: Primer combination
13: ignition conditions 14: primer
15: bottom 16:
20: Plating tank
21: anode rod 22: auxiliary anode rod
30: Brush
31: Brush body 32: Side wire
33: lower wire striking part 34: rotating shaft

Claims (9)

A process of removing a propulsion charge to remove a propulsion charge from a battle which separated the warhead, and a primer separation process of separating the primer assembly, which is a combination of a primer and an ignition contract, A reduction process of a primer coupling process that reduces the diameter of the primer coupling hole of the bottom of the detachment of the primer to electroplating and a process of reducing the diameter of the primer primer, In the maintenance method,
Prior to the pressure separation process, a cooling process is performed to lower the binding force between the primer primer and the primer primer due to the volume contraction of the primer primer and the primer primer by cooling the primer primer and the primer primer. Being;
In the process of reducing the primer coupling hole, the anode is immersed in a plating bath, the anode rod of a metal material is inserted into the same shaft only in the primer coupling port, the inner surface of the primer coupling hole and the outer surface of the anode rod are spaced apart, Wherein plating is performed on the inner surface of the primer-bonding hole by the redox reaction of the cathode rod and the primer-binding primer through the electrolyte solution. The method according to claim 1,
Wherein the ignition condition separation process is further performed between the propulsion charge removal process and the cooling process, wherein the ignition condition separation process is performed to separate the ignition conditions from the primer coupled to the primer coupling unit. The method according to claim 1,
Wherein the cooling process is performed at a temperature of -50 to -10 DEG C for 2 to 20 minutes. delete delete delete The method according to claim 1,
Between the process of shrinking the priming tube and the process of bonding the new primer to the primer, there is a process of plating the inner surface of the inner tube by inserting a supplementary anode into the inner tube to allow the inner surface of the tube to be plated by the oxidation- Wherein the method comprises: 8. The method of claim 1 or 7,
Wherein the plating is performed by first performing copper plating, performing nickel plating to increase the surface strength, and then perform brass plating. 8. The method of claim 7,
Further comprising a coating layer removing step of removing the coating layer by polishing the bottom and side surfaces of the inner surface of the medicament with an iron brush before the medicinal tubing plating process.

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