Creation method of protective antifriction coating on inner surface of barrel channel of small-arms and artillery systems

FIELD: weapons and ammunition.

SUBSTANCE: creation method of protective antifriction coating on inner surface of barrel channel of small-arms and artillery systems is implemented during firing by supplying protective antifriction compound contained in annular grooves of drive obturating device to "barrel - drive obturating munition device" contact area.

EFFECT: simplifying the application process of protective antifriction coating on inner surface of the barrel channel and shortening the time required for that process; providing uniform coating of similar parts of the barrel channel; improving the fire safety level on the position of arrangement of small-arms and artillery systems.

3 cl, 5 dwg

 

The invention relates to equipment and can be used in the operation of small arms and artillery weapons for its repair and restoration operations and the development of ammunition.

It is known that the resource trunks of small arms and artillery systems is measured by the number of weapon shots to significant changes ballistic qualities weapons (reduce initial velocity or pressure of the powder gases), deterioration of accuracy of fire, until the occurrence of unsatisfactory functioning shells, fatigue fracture of the stem. The main reasons causing wear trunks of small arms and artillery systems (reducing resource survivability)are: high pressure, temperature and corrosive gases; pressure leading-alterimage device of the projectile (bullet) to the thread (smooth shaft) in entry; pressure leading-alterimage device on the combat side of the thread (on the smooth surface of the barrel) when the movement of the projectile in the bore; a pressure centering thickening of the dynamic unbalance of the projectile and from the initial skew of the projectile in the barrel.

Known methods of creating on the inner surface of a bore of small arms and artillery systems protective and anti-friction coatings (layers of material which, film)having high hardness, low propensity to abrasion and build-up, corrosion resistance, for example, deposition on the inner surface of the barrel of the chrome layer; special types of cementing the inner surface of the bore; a hardening reported in the surface layer of the metal, resulting in possible to increase the resource trunks sometimes a half to two times (see Aer. The action shot on the gun barrels. - L.: publishing house of the Artillery Academy of the red army, 1933, p.2-49).

The main drawback of these methods is the use of special equipment, the costs of their implementation in many cases are not justified by the level of increasing the survivability of the barrel. The technological process of electrochemical plating barrel harmful to health personnel and also requires the solution of environmental problems of sewage.

Closest to the proposed method is adopted for the prototype way of creating on the inner surface of a bore of small arms and artillery systems protective and anti-friction coatings (see patent RU 2169328 C1, F41A 21/02, F41A 21/22, SS 24/00, 20.06.2001), including pre-cleaning of the barrel and the subsequent processing of ultrafine powder of natural material or a mixture of natural materials in the technological environment (protective-antifreeze is authorized by part of) the surface of each shell and the inner surface of the barrel before each shot series, consisting of not less than 3-5 shots, thus ensures the modification of the inner surface of the barrel with the formation of specific metal-ceramic phases, resistant to corrosion and wear, which increases the resource trunks, improve their ballistic characteristics, helps to increase range and accuracy.

However, to implement this method of creating a protective and anti-friction coatings on the inner surface of a bore of small arms and artillery systems is necessary before each shot series to clear the barrel, apply to clean the inner surface of the barrel protective anti-friction composition. Protective anti-friction composition must also be applied on the surface of the projectiles (bullets). Preparatory activities require high-quality performance, and this leads to the complication of the process and time-consuming, for example, a bad barrel cleaning (incomplete removal of combustion gases powder and copper) leads to poor ideii coating with the material of the barrel. In addition, protective and anti-friction coating is uneven on the same part of the inner surface of the barrel, because it is impossible to deliver to them the presence of a layer of protective anti-friction composition of the same thickness due to Oceania and accumulation of the composition in the lower parts of stem and short the USA ammunition due to the action of gravity. As well as a technological medium used flammable kerosene or white spirit, it requires compliance to the placement position of the infantry and artillery systems increased fire protection.

The problem solved by the invention, is to reduce the time and simplify the process of creating a protective and anti-friction coatings on the inner surface of a bore of small arms and artillery systems, to ensure uniformity of the coating same parts of the barrel and in improving fire safety in the placement position of the infantry and artillery systems.

This object is achieved in that in the proposed method of creating a protective and anti-friction coatings on the inner surface of a bore of small arms and artillery systems, and process of shooting, protective and anti-friction coating to create by filing in the contact zone "barrel - leading-abdulromae device of ammunition" protective anti-friction composition located in the annular grooves leading-alterimage device.

The objective is achieved in that the protective anti-friction coating on the inner surface of a bore of small arms and artillery systems can be created when shot in layers by filing in the contact zone "barrel - leading-abdulromae of the device is of ammunition" of the individual components of the protective anti-friction composition, located in different grooves leading-alterimage device.

The objective is achieved in that the protective anti-friction coating can be created when shooting in layers by alternating firing ammunition, the grooves leading-abdulrosa devices which are the various components of the protective anti-friction composition.

The invention is illustrated by drawings, where figure 1 shows a portion of a bore of small arms and artillery systems and its ammunition, consisting of a body and leading-alterimage device;

in the form of a figure 1 is a fragment of leading-alterimage device located on the housing and comprising of alternating annular jumpers and grooves, which are placed in protective anti-friction composition; figure 2, 3 and 4 - step process of creating a protective and anti-friction coatings on the inner surface of a bore of small arms and artillery systems.

Figure 1 shows a fragment of the barrel 1 infantry and artillery systems with a lead-in part 2 and margins of the grooves 3, and placed in it the munition 4, consisting of a body 5 and leading-alterimage device 6; the form And figure 1 shows a portion of a leading-alterimage device 6 located on the frame 5 and which consists of a combination of alternating annular crosspieces 7 and grooves 8 which are placed in protective anti-friction composition 9; figure 2 shows the scheme of the process of creating a protective and anti-friction coatings on the inner surface of the barrel 1 infantry and artillery systems, implemented with the shot at the moment when the leading-abdulromae device 6 placed on the housing 5 (Fig 1) and composed of alternating annular crosspieces 7, having a volume of material VInlocated above the field of thread 3 depth Δ, and grooves 8, which is a protective and anti-friction composition 9 volume VK, the top 13 of the first movement jumper 7 locks due to forcing δ lead-in part 2 of the barrel 1, providing the primary seal of the powder gases and the restriction of movement of the protective anti-friction composition 9 in the front part of the leading-alterimage device 6; figure 3 - process create a protective and anti-friction coatings on the inner surface of the barrel 1 infantry and artillery systems, implemented with the shot at the moment when the leading-abdulromae device 6 placed on the housing 5 (Fig 1) and composed of alternating annular crosspieces 7 and grooves 8, which is protective-anti-friction composition 9, the top 14 of the second movement jumper 7 locks due to forcing δ lead-in part 2 of the barrel 1, providing further Asturiana powder ha is s and the circuit protective anti-friction composition 9 in the groove 8 volume V and pressure P; figure 4 - scheme of the process of creating a protective and anti-friction coatings on the inner surface of the barrel 1 infantry and artillery systems, implemented with the shot at the moment when the first and second movement jumper 7 leading-alterimage device 6 placed on the housing 5 (Fig 1) and composed of alternating annular crosspieces 7 and grooves 8, which is a protective and anti-friction composition 9, fully strain field of the thread 3, the material bridges 7 volume VBlocated above the field of the thread 3, as well as the pitch of the thread 3, moved in the groove 8, and protective anti-friction composition 9 is closed in the groove 8 volume V1and pressure P1interacts with elements of the bore 1 in the zone of contact with the leading-alturism device 6.

The proposed method is as follows:

- moving on to the barrel 1 (2) small arms and artillery systems in the shot, leading-abdulromae device 6 placed on the housing 5 of the munition 4 and composed of alternating annular crosspieces 7 and grooves 8, which is a protective and anti-friction composition 9 (1), the top 13 of the first movement of the munition 4 jumpers 7 due to forcing δ locks the lead-in part 2 of the barrel 1, providing primary obtura the Yu powder gases and the restriction of movement of the protective anti-friction composition 9 in the front part of the leading-alterimage device 6, and carries out cleaning of the barrel 1 (removes from the surface of the channel grooves of the barrel products of combustion of gunpowder, it smoothes the micro irregularities); further promotion of the barrel 1 infantry-artillery systems leading-alterimage device 6 (Fig 3) leads to the displacement field of the thread 3 and the first material while moving the jumpers 7, crushable field of the thread 3, the grooves 8 volume VKpart of the protective and anti-friction composition 9 and enters the top 14 of the second movement jumpers 7, providing thus reducing friction during movement of the projectile along the barrel bore 1 infantry-artillery systems and rubbing protective anti-friction composition 9 in the surface of the bore, the top 14 of the second movement jumpers 7, interacting with the lead-in part 2, due to forcing δ also locks the barrel 1, providing a further seal the powder gases and snapping under the pressure P protective-anti-friction composition 9 in volume V bounded by a groove 8 between the first and second movement ammunition jumpers 7 and the inner surface of the barrel 1; upon further movement of the leading-alterimage device 6 through the bore 1 (figure 4) small arms and artillery systems is a full deformation jumper 7 (on the value of Δ+δ) (figure 2, figure 3) leading-alterimage device 6 fields and rifling 3 (lead-in cone of a smooth bore), crushed fields rifling 3 material jumper 7, volume VBmoves in the grooves 8 and together with the fields of the grooves 3 reduce their volume from V to V1forcing pressure P1protective anti-friction composition 9 in the contact zone "barrel - leading-abdulromae device of ammunition", protective and anti-friction composition 9, in the closed volume V1under pressure P1widens and unloads the contacting surface of the barrel 1 and leading-alterimage device 6 (creates in the contact zone of microregions, filled with protective anti-friction composition and having improved tribological characteristics), interacts with the purified surface of the barrel 1, saturates the surface and subsurface layers of the metal barrel 1 its chemical alloying elements that increase the resistance of the inner surface of the barrel 1 to the influence of high temperature, pressure, corrosive gases and abrasion, while in the zone of contact and mechanical rubbing of protective anti-friction composition 9 in the surface of the barrel 1, the smoothing and leveling formed razgonnyj cracks and other asperities on the surface of the bore 1 (in the contact zone "barrel - leading-abdulromae device of ammunition" is formed self-freak the ion-adapted pair); similar processes take place in the subsequent grooves 8 leading-alterimage device 6 (if any); the pressure P1in a closed ring groove 8 is uniform throughout its volume V1, resulting in protective anti-friction composition 9 equally comes to the similar parts of the barrel 1, providing the creation of them even, continuous protective and anti-friction coatings.

Since the annular grooves leading-alterimage device of ammunition arranged in series one behind the other and separated by a continuous annular ridges (i.e. are not reported), they can fill the various components of the protective anti-friction composition, thereby to provide a process shot layered creating a protective and anti-friction coatings on the inner surface of a bore of small arms and artillery systems by filing in the contact zone "barrel - leading-abdulromae device munition individual components of protective anti-friction composition in different grooves leading-alterimage device. Layer by layer creation of protective anti-friction coating of the inner surface of the bore of small arms and artillery systems can be provided and by alternating firing ammunition, the grooves leading-abdulrosa devices to the x are the various components of the protective anti-friction composition.

In the proposed method the process of creating a protective and anti-friction coatings on the inner surface of a bore of small arms and artillery systems have been simplified and reduced in time, became fully implemented in the process shot, it excludes preparatory operations associated with the barrel cleaning and applying protective and anti-friction compounds on the surface of the bore and to the surface of the munition, as well as the pressure in the closed ring groove is uniform throughout its volume, and the protective anti-friction composition the same goes to all the same internal parts of the barrel, allowing the creation of them even protective and anti-friction coatings.

As a protective anti-friction compounds may apply different mix compositions, such as solid-based lubricant molybdenum disulfide, a mixture of natural minerals, such as Ceramoptec" and others, which in the factory, or on the basis of (Arsenal), or placement positions of the infantry and artillery systems filled grooves leading-alterimage device of ammunition. In these compounds there are no flammable materials, as a technological medium used elastic sealants, such as silicone or grease, for example, gun grease. No usesite-friction composition flammable materials increases the level of fire safety in the placement position of the infantry and artillery systems.

In small arms and artillery systems with a rifled barrel with increasing angular velocity of the munition when it travels along the barrel bore intake of protective anti-friction compounds in the contact zone "barrel-master of ordnance" is provided and centrifugal forces.

The volumes of the grooves of the VK(figure 2, figure 3, figure 4) leading-alterimage device are reduced by the amount of volume occupied by fields of rifling, and the volume of material jumper VBlocated above the field of thread and displacement fields of the grooves in the groove when forming the depressions between the lugs. Calculations and experimentally obtained reduction grooves (VKto V1) leading-alterimage device grenades shot GPD-30 for bumping into the rifling of the barrel depending on the profile shape jumpers 1.7÷2.2 times, which led to a marked increase in pressure P1protective anti-friction composition (higher than the pressure of the powder gases), provided the receipt of this composition in the contact zone "barrel - leading-abdulromae device" and the creation of a stable uniform protective and anti-friction coatings of the same name the parts of the barrel and, as a consequence, the reduction of the wear of the barrel of the grenade launcher.

In addition, leading-abdulromae device, made on the body of the munition in the form of owls is kupeli striped jumper ring and grooves, filled protective-antifriction composition, changes the circuit contact pairs "barrel - leading-abdulromae device of ammunition" to "trunk - protective and anti-friction composition - leading-abdulromae device of ammunition; high pressure in the closed cavity ring grooves with protective anti-friction composition and uniform throughout its volume causes leading-abdulromae device, and through him, and the body of the munition, as if evenly hung up" relative to the inner contour of the barrel, which improves the centering of ammunition and reduces the reaction, therefore, further reduces the frictional force and, as a consequence, reduces the resistance to movement of the projectile along the barrel bore of the gun, it will enhance the survivability of the barrel, the range and precision shooting. The use of protective anti-friction compounds, located in the annular grooves leading-alterimage device for unitary shots leads to the increasing tightness of the Assembly sleeve - projectile (bullet)".

1. A method of creating a protective and anti-friction coatings on the inner surface of a bore of small arms and artillery systems, and process of shooting, characterized in that the protective anti-friction coating to create the shot by filing in the contact zone "barrel - leading-arturius the s unit of ammunition" protective anti-friction composition, located in the annular grooves leading-alterimage device.

2. A method of creating a protective and anti-friction coatings on the inner surface of a bore of small arms and artillery systems according to claim 1, characterized in that the protective anti-friction coating to create the shot in layers by filing in the contact zone "barrel - leading-abdulromae device munition individual components of protective anti-friction composition in different grooves leading-alterimage device.

3. A method of creating a protective and anti-friction coatings on the inner surface of a bore of small arms and artillery systems according to claim 1 or 2, characterized in that the protective anti-friction coating to create layers by alternating firing ammunition, the grooves leading-abdulrosa devices which are the various components of the protective anti-friction composition.



 

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FIELD: weapons and ammunition.

SUBSTANCE: method consists in application of marking elements that indent a bullet onto an inner surface of a rifled gun barrel. The difference consists in application of marking elements on the inner surface of the rifled gun barrel by firing a bullet with previously applied marking elements.

EFFECT: definite identification of a rifled gun using a bullet with application of previously applied marking elements.

3 cl

FIELD: weapons and ammunition.

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EFFECT: identification of firearms is achieved both with the help of a bullet and an empty case.

FIELD: weapons and ammunition.

SUBSTANCE: method consists in application of coating to gun striker surface, which provides penetration of set of microelements into surface of case capsule during firing, determination and comparison of information signals the first one of which represents response of capsule surface after its contact with striker, and the second one from surface of case capsule, which is shot from unknown gun. As individual marks used for identification with the help of method of radioactive indicators there used are at least three radioactive isotopes chosen from the group containing 69Co, 55Fe, 210Pb, 63Ni1 and 90Sr, and thickness of coating on surface of gun striker is 3.0 to 5.0 mcm.

EFFECT: improving reliability of analysis result.

FIELD: weapons and ammunition.

SUBSTANCE: identification system is characterised by available marking element on striker surface, and mixture consisting at least of three radioactive isotopes chosen from the group containing 69Co, 55Fe, 210Pb, 63Ni and 90Sr.

EFFECT: unique specific identification of item of mass gun as per striker mark on case.

FIELD: weapons and ammunition.

SUBSTANCE: method consists in application of coating 3.0 to 5.0 mcm thick to surface of gun striker, which provides penetration of set of microelements to the surface of primer of cartridge during firing. At least three radioactive isotopes chosen from the group containing 69Co, 55Fe, 210Pb, 63Nil and 90Sr are used as individual marks applicable for identification by using the method of radioactive indicators.

EFFECT: enlarging the identification period of gun as per fired cartridge.

FIELD: weapons and ammunition.

SUBSTANCE: method consists in application of coating at least to some portion of inner surface of rifled gun barrel and to the surface of cartridge chamber. Coating thickness on cartridge chamber surface is 2.0 to 3.0 mcm, and inner barrel surface - 3.0 to 5.0 mcm. At least three radioactive isotopes chosen from the group containing 69Co, 55Fe, 210Pb, 63Nil and 90Sr are used as individual marks applicable for identification by method of radioactive indicators.

EFFECT: enlarging the identification period of gun and improving analysis result quality.

3 cl

FIELD: weapon and ammunition.

SUBSTANCE: method includes preparation of bore surface and coating. Bore surface is prepared with mixed native minerals and biological enzyme systems dissolved and suspended in isopropyl alcohol at temperature 50°...80°C within 60...90 minutes. Then it is covered with polyfunctioning composition of mixed homogeneous and heterogeneous catalysts and dispersion-hardening systems in viscous carrier. Further layer is heat-treated within 2...4 hours at temperature 110°...120°C. Then bore is assembled, firearm is loaded with bullet or shell and shooting is made for hardening of applied coating. Number of shots depends on barrel bore calibre.

EFFECT: provided antifriction, wear-resistant and anticorrosive protective coating of barrel bore; correction of its internal geometry and elimination of erosion-and-corrosion wear and internal splits.

2 cl, 4 dwg

FIELD: weapons.

SUBSTANCE: method is used for identifying weapons, released by small consignments. The method involves depositing a composition from four metals, radiological half lives of which are not less than 5 days, on the inner surface of a cartridge chamber and, at least, partially on the inner surface of a barrel assembly, and subsequent determination of the qualitative and quantitative composition of the metals released during shooting using neutron activation analysis of the surface of shell and bullet.

EFFECT: improved reliability of the method.

2 ex

FIELD: weapons.

SUBSTANCE: method is used for identifying weapons, released by small consignments. The method involves depositing on the inner surface of a cartridge chamber a composition of three metals, radiological half lives of which are not less than 5 days and subsequent determination of the qualitative and quantitative composition of metals intruding into the surface of the shell during shooting using neutron activation analysis.

EFFECT: improved reliability of the method.

2 cl, 2 ex

FIELD: weapons and ammunition.

SUBSTANCE: invention relates to the field of development and fabrication of custom made firearms and may be used for the identification of rifled barrels of small arms that are manufactured in small lots. A method consists in applying a coating onto the inner surface of rifled arms barrels and cartridge chambers. The coating provides penetration of a set of microelements into the lateral surface of a bullet while it passes through the barrel in the course of firing and identification of the arms using neutron activation analysis of the bullet and cartridge case surfaces. Moreover, the applied coating contains three metals with their radioactive isotopes half-life period not less than 5 days.

EFFECT: providing unambiguous indentification of rifled weapons.

2 cl

FIELD: weapons and ammunition.

SUBSTANCE: invention relates to the field of development and fabrication of custom made firearms and may be used for the identification of rifled barrels of small arms that are manufactured in small lots. A method consists in applying a coating onto the inner surface of rifled arms barrels and cartridge chambers. The coating provides penetration of a set of microelements into the lateral surface of a bullet while it passes through the barrel in the course of firing and identification of the arms using neutron activation analysis of the bullet and cartridge case surfaces. Moreover, the applied coating contains three metals with their radioactive isotopes half-life period not less than 5 days.

EFFECT: providing unambiguous indentification of rifled weapons.

2 cl

FIELD: weapons.

SUBSTANCE: method is used for identifying weapons, released by small consignments. The method involves depositing on the inner surface of a cartridge chamber a composition of three metals, radiological half lives of which are not less than 5 days and subsequent determination of the qualitative and quantitative composition of metals intruding into the surface of the shell during shooting using neutron activation analysis.

EFFECT: improved reliability of the method.

2 cl, 2 ex

FIELD: weapons.

SUBSTANCE: method is used for identifying weapons, released by small consignments. The method involves depositing a composition from four metals, radiological half lives of which are not less than 5 days, on the inner surface of a cartridge chamber and, at least, partially on the inner surface of a barrel assembly, and subsequent determination of the qualitative and quantitative composition of the metals released during shooting using neutron activation analysis of the surface of shell and bullet.

EFFECT: improved reliability of the method.

2 ex

FIELD: weapon and ammunition.

SUBSTANCE: method includes preparation of bore surface and coating. Bore surface is prepared with mixed native minerals and biological enzyme systems dissolved and suspended in isopropyl alcohol at temperature 50°...80°C within 60...90 minutes. Then it is covered with polyfunctioning composition of mixed homogeneous and heterogeneous catalysts and dispersion-hardening systems in viscous carrier. Further layer is heat-treated within 2...4 hours at temperature 110°...120°C. Then bore is assembled, firearm is loaded with bullet or shell and shooting is made for hardening of applied coating. Number of shots depends on barrel bore calibre.

EFFECT: provided antifriction, wear-resistant and anticorrosive protective coating of barrel bore; correction of its internal geometry and elimination of erosion-and-corrosion wear and internal splits.

2 cl, 4 dwg

FIELD: weapons and ammunition.

SUBSTANCE: method consists in application of coating at least to some portion of inner surface of rifled gun barrel and to the surface of cartridge chamber. Coating thickness on cartridge chamber surface is 2.0 to 3.0 mcm, and inner barrel surface - 3.0 to 5.0 mcm. At least three radioactive isotopes chosen from the group containing 69Co, 55Fe, 210Pb, 63Nil and 90Sr are used as individual marks applicable for identification by method of radioactive indicators.

EFFECT: enlarging the identification period of gun and improving analysis result quality.

3 cl

FIELD: weapons and ammunition.

SUBSTANCE: method consists in application of coating 3.0 to 5.0 mcm thick to surface of gun striker, which provides penetration of set of microelements to the surface of primer of cartridge during firing. At least three radioactive isotopes chosen from the group containing 69Co, 55Fe, 210Pb, 63Nil and 90Sr are used as individual marks applicable for identification by using the method of radioactive indicators.

EFFECT: enlarging the identification period of gun as per fired cartridge.

FIELD: weapons and ammunition.

SUBSTANCE: identification system is characterised by available marking element on striker surface, and mixture consisting at least of three radioactive isotopes chosen from the group containing 69Co, 55Fe, 210Pb, 63Ni and 90Sr.

EFFECT: unique specific identification of item of mass gun as per striker mark on case.

FIELD: weapons and ammunition.

SUBSTANCE: method consists in application of coating to gun striker surface, which provides penetration of set of microelements into surface of case capsule during firing, determination and comparison of information signals the first one of which represents response of capsule surface after its contact with striker, and the second one from surface of case capsule, which is shot from unknown gun. As individual marks used for identification with the help of method of radioactive indicators there used are at least three radioactive isotopes chosen from the group containing 69Co, 55Fe, 210Pb, 63Ni1 and 90Sr, and thickness of coating on surface of gun striker is 3.0 to 5.0 mcm.

EFFECT: improving reliability of analysis result.

FIELD: weapons and ammunition.

SUBSTANCE: identification system is characterised by availability of a marking element on the inner surface of a rifled barrel and a cartridge chamber of firearms. The marking element is a mixture of at least three radioactive isotopes selected from a group that contains 69Co, 55Fe, 210Pb, 63Ni and 90Sr.

EFFECT: identification of firearms is achieved both with the help of a bullet and an empty case.

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