April 2022 - chinaballistic

Apr 23 2022

HOW MANY TYPES OF BULLETPROOF SHIELD ARE THERE ? – Chinaballistic.com

A bulletproof shield, as the name suggests, is a shield with a certain bulletproof ability. The traditional bulletproof shield is a rectangular sheet-like object with an arc, usually with a handle on the back that is easy to hold. While defending against the enemy’s attack, just lift the shield in front of the user to cover the head and body, thus providing comprehensive protection for the user. However, with the continuous progress of the protection industry, various protection products are also changing with each passing day, and the functions, appearance and use design are also constantly improving, and they are more and more suitable for various usage scenarios and in line with human usage habits.

There are many materials that can be used to make bulletproof shields, including aramid, polyethylene, ceramics and steel plates.

Bulletproof shields are generally classified by size and can be divided into ultra-small (450mm × 650mm), small (550mm × 650mm), medium (550mm × 1000mm), large (600mm × 1300mm) and super-large (600mm × 1750mm). Bulletproof shields also have strict protection standards. The National Institute of Justice of the United States has set 7 levels of bulletproof shields – Level I, Level IIA, Level II, Level IIIA, Level III, Level IV and Special class. Level I can protect against 0.22-inch pistol and 0.38-inch special pistols; Level IIA can protect against 0.357-inch Magnum and 9mm pistols (lower muzzle velocity types, such as 0.380-inch ACP bullets); Level II can protect against 0.357-inch horses Gnum and 9mm pistols (higher muzzle velocity types, such as 9mm Parabellum); Class IIIA can protect against 0.44-inch Magnum and 9mm submachine gun shots; Class III can protect against 0.308-inch Winches Special full armor and 7.62×39mm bullets; IV grade can protect 0.30-06 inch bullets, 7.62mm NATO standard bullets and 7.62×54mmR bullets; Special grade is customized for special bullets. There are many opportunities for SWAT to use bulletproof shields. However, since most of the SWAT police use medium-sized bulletproof shields, and sometimes tactical lights are added, they are basically IIIA-level, and III-level is also used when necessary, but the total quality of the two is very different. In terms of appearance and design, it can be divided into ordinary hand-held bulletproof shields, folding bulletproof shields, briefcase-type bulletproof shields, ladder-type bulletproof shields, and cart-type bulletproof shields.

Hand shield

Hand-held shields are usually equipped with 2 handles on the back, which can be used by left-handed or right-handed users at the same time, and are also equipped with bullet-proof glass viewing windows or sight glasses for easy observation of external conditions. Hand-held shields are mainly suitable for combat scenarios with complex terrain. For example, hand-held bulletproof shields are more flexible to use in narrower stairs or passages, and can also be better matched with weapons such as guns. Trolley Bulletproof Shield

The cart-type bulletproof shield is equipped with a cart, which is more labor-saving for long-distance movement. In addition, like the hand-held bulletproof shield, it is equipped with a handle on the back, which can be used by hand, and is also equipped with a bulletproof glass sight glass. Generally, shields with higher defense levels are usually heavy and require a cart for long-term use.

The cart-type bulletproof shield is mainly suitable for relatively open and flat combat scenarios. When using, the shield can be moved freely over a long distance by placing the shield on the cart, which is more labor-saving. It can also be used by hand when the cart cannot be used due to changes in space and terrain.

Ladder Bulletproof Shield

There is a special structure behind the ladder bulletproof shield that can be turned into a ladder to deal with complex terrain, such as helping users to view and control the environment at higher altitudes when necessary. At the same time, the bottom of the shield is also equipped with wheels, which is more convenient and labor-saving to move.

Briefcase Bulletproof Shield

Briefcase-style bulletproof shields are bulletproof shields that look similar to briefcases. They usually look like a very common PR bag, but they can be quickly deployed into bulletproof shields in critical situations. The weight of this shield is only about 5 kilograms, and it has a good defensive effect on the protection of light weapons such as pistols.

GUANGZHOU HUASTA INDUSTRIAL has been manufacturing and offering the bulletproof products to clients since 2001, every product pass through the SHOOTING TEST, quality is guaranteed. If you have any interest, please feel free to contact us by mail@HuastaTactical.com.

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Apr 20 2022

HOW DOES THE BULLETPROOF VISOR/MASK WORK ? -CHINABALLISTIC.COM

When it comes to bulletproof equipment, we may first think of bulletproof vests, bulletproof inserts, bulletproof helmets, bulletproof glass, etc. Few people have heard of bulletproof masks. Indeed, compared to bulletproof helmets, bulletproof masks do not seem to be as widely used in practical applications as other bulletproof equipment, but they also often appear in various military security activities. The main function of bulletproof masks is to avoid or reduce combat. Damage to the wearer’s face from bullets or explosive fragments during the process.

Before the emergence of bulletproof masks, people used bulletproof masks to protect their faces. The earliest bulletproof masks were made of metal. Usually only the eye part was hollowed out to facilitate the observation of the external situation. Although this kind of mask can provide the wearer with a certain It has a high degree of protection, but it is conceivable that its weight and limitation of vision also bring a lot of inconvenience to the wearer.

With the development of material science and the continuous improvement of people’s requirements for bulletproof equipment, this kind of bulletproof mask has gradually been eliminated and replaced by a new type of bulletproof mask. A bulletproof mask is a protective equipment that can absorb and dissipate the energy of the warhead, prevent penetration and effectively protect the human face, and its transparent appearance does not affect normal observation. Compared with the bulletproof mask, the bulletproof mask has undergone essential changes in appearance and material. From the perspective of appearance, the bulletproof mask is an arc-shaped sheet structure, because it is usually made of transparent materials and will not affect the line of sight. , so there is no need for the eye hollow design, and the protective area is larger; in addition, the use of high-performance materials can greatly reduce the weight of the mask while improving the protective performance. Great convenience.

Nevertheless, considering the wearer’s load-bearing problem, usually the highest protection ability of bulletproof masks is to prevent pistol bullets. In addition to this, this ballistic mask needs to be used in conjunction with a helmet. Generally speaking, a helmet that can defend against 7.62mm AK47 bullets weighs about 1.5-2kg, plus the weight of the bulletproof mask, which is a big challenge for the neck of the wearer who needs to wear bulletproof helmets and masks for a long time. . In the case of the soldier, the bulletproof mask will be close to or even touch the butt part of the gun when the soldier is aiming, which may cause a certain degree of interference to the soldier’s shooting. This is also the reason why bulletproof masks are not as widely used in the military field as other bulletproof equipment.

Of course, sometimes face protection is also necessary in order to deal with some more special combat scenarios with higher risk levels, and more comprehensive protection is often needed at this time.

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Apr 20 2022

NEW BULLETPROOF MATERIAL-POLYUREA-CHINABALLISTIC.COM

In daily life, if we are careful enough, we will find that many skyscrapers, truck covers, oil platforms, and bulletproof equipment have a common material – polyurea. The popularization and promotion of polyurea is said to have originated from the experiments of a group of Italians. They tried to free fall the polyurea-coated watermelon from a height of 45 meters, and the watermelon bounced back when it landed, and its appearance was intact. In order to further verify the protective ability of polyurea, some people also tried to spray polyurea on eggs and tested, and the eggs were also intact. With its excellent protective properties, polyurea has become more and more widely used in various fields from heavy industry to agriculture, especially in the field of protective products, its application is also more and more promising.

Polyurea is formulated from specific raw materials in a specific proportion. Its specific material formulations are kept secret commercially, but the basic ingredients can be identified as a combination of isocyanate and polyol resin. Polyols primarily act as plasticizers, and when the two components are combined, they polymerize to form a long-chain molecule. Long chains of molecules are intertwined with each other to form an indestructible material called polyurea. In addition, these long-chain molecules are stretchable and have high flexibility, which also endows the polyurea material with ultra-high tensile and tear resistance.

In addition, polyurea has many performance advantages, such as:

Quick-drying – Polyurea coatings sprayed on surfaces such as various instruments and equipment can be dried and set in seconds and are ready for use.

Very high wear and compression resistance.

Good chemical resistance.

Super airtight and waterproof.

Does not contain VOCs, CFCs, solvents, etc., and does not cause any pollution to the environment.

It is precisely because of these characteristics of polyurea that it has a lot of attention to its use method and application. At present, polyurea is usually coated on the surface of objects by thermal spraying, which is time-critical because once the two components of the coating are combined, the reaction starts immediately and cannot be reversed. In the process of use, the two coatings need to be pressed into a special spray gun through a heated hose, the two are quickly mixed at the moment of spraying, and then quickly dried and formed in a few seconds.

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Apr 20 2022

THE IMPROVEMENT AND APPLICATION OF POLYETHYLENE -CHINABALLISTIC.COM

In recent years, product research and development technology has been continuously improved, and various products are constantly innovating in terms of performance, materials, packaging and production technology. For bulletproof products, the limited protective performance and high weight have always been difficult obstacles to improve the performance of bulletproof products. Therefore, scientists and researchers in the field of bulletproof protection have always been involved in finding and developing new materials. At the same time, attempts are made to improve and enhance the performance of the original materials, and the new polyethylene (PE) is one of the new high-performance materials improved through new technologies.

The high-strength and functional polyethylene tape is made of special high-molecular-weight polyethylene, which is currently the strongest polyethylene material in the world. It is an upgraded version of ultra-high molecular weight polyethylene, so in addition to all the characteristics of ordinary ultra-high molecular weight polyethylene materials, it also has excellent characteristics that ultra-high molecular weight polyethylene does not have, such as high strength under the same weight And functional polyethylene tape is 11 times stronger than steel, and at the same time, compared with ordinary UHMWP, it has higher corrosion resistance, UV resistance and creep resistance as well as good thermoplasticity.

The excellent performance of this super polyethylene comes from its special processing technology and manufacturing process. Super polyethylene is to melt and press ultra-high molecular weight polyethylene particles to synthesize polyethylene film, and then stretch it to a thickness of 50-60um. At this time, the polyethylene molecular chain will be fully stretched and regular under strong pulling force. Arranged together, giving it far superior characteristics than ordinary ultra-high molecular weight polyethylene materials. These ultra-high molecular weight polyethylene films are then laminated together to obtain what we call super PE materials.

The bulletproof product made of super PE has a super energy absorption effect, it can disperse and absorb the kinetic energy of the bullet, so as to intercept the bullet and have a good bulletproof effect. Therefore, this super PE has been applied to bulletproof helmets, bulletproof inserts, and bulletproof vests and other bulletproof products.

In addition, this new type of super PE has also been applied in many fields, such as:

Textiles and composites – some textiles are made with this super PE, and composites synthesized with this type of fabric have strong compression resistance. For example, adding super PE fibers to some carbon-containing composite materials and glass materials can enhance the strength and compressive ability of the composites.

Ropes, nets and cables—-Super PE has super high tensile strength, combined with its light weight, it is used as the best material for making ropes, cables, etc. In addition, its good corrosion resistance makes it more widely used.

In addition, super PE can also be used in the manufacture of air containers, sails, etc. As long as it is a product with high requirements for strength and light weight, super PE can participate.

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Apr 16 2022

HOW TO MAINTAIN THE BULLETPROOF VEST ? – -CHINABALLISTIC.COM

Many people may have a certain misunderstanding about bulletproof vest, thinking that as long as the bulletproof vest is not damaged, it can be effective for a long time. But this is not the case. Regardless of whether it is damaged or not, with the increase of the service life, the bulletproof performance of the bulletproof vest is also constantly declining. The shelf life of bulletproof vest is affected by many factors, and it is very important to understand the factors that affect the efficiency of bulletproof vest for better preservation and prolong its service life.

Normally, most bulletproof products can maintain a shelf life of more than 5 years. Very few bulletproof products have a shelf life of about 7 years due to the material. However, if it is maintained and paid attention to during use and storage, its validity period can be effectively extended, otherwise, even if the bulletproof function is rapidly reduced or even invalidated within the validity period, it is possible. So how to properly use and maintain bulletproof vest?

1. Regular cleaning

To prolong the service life of the bulletproof vest, it is very important to keep the bulletproof vest clean and clean. The bulletproof vest jacket can be washed in the washing machine, but it must be ensured that the bulletproof chip is taken out before putting it in the washing machine.

When cleaning the bulletproof chip, you need to prepare a sponge and a small bottle of cleaning agent, use the sponge dipped in the cleaning agent to gently wipe the surface of the chip, remember not to immerse the chip in water, and do not use an ironing board to iron the chip wrapping cloth Because it is easy to burn the wrapping cloth accidentally, which will cause the chip to be eroded by air or moisture and stains during use, which will lead to a decline in the bulletproof function in the long run.

2. Avoid sun exposure

Exposure to sunlight accelerates the ageing of material fibers, thereby reducing their service life and ballistic resistance.

3. Usage frequency

The bulletproof performance of the bulletproof vest is also related to the length of use. The longer the use time, the lower the bulletproof performance and the shorter the validity period. Therefore, if conditions permit, it is best to prepare a set of replaceable bulletproof vests, and two sets of bulletproof vests are used in rotation. It can prolong the service life of bulletproof vest as much as possible.

4. Replace damaged bulletproof vest in time

Once the bulletproof vest is hit by a bullet, it should be replaced immediately, because even if the bulletproof chip hit by the bullet is not damaged in appearance, the strong impact will inevitably lead to changes in the microstructure of the material, thereby affecting its structural stability and ballistic performance. Replacement, then once the bullet hits the same position in the next use, the possibility of the chip being broken down will be greatly increased. Therefore, from the perspective of your own safety, the bulletproof vest that has been hit by the bullet must be replaced in time.

The above is a summary of the precautions for the use of bulletproof vest. Only by giving the bulletproof vest proper maintenance during the use process can the validity period of the bulletproof vest be severely punished and its ballistic resistance can be maintained.

HUASTA has been manufacturing and offering the bulletproof products to clients since 2001, every product pass through the SHOOTING TEST, quality is guaranteed. If you have any interest, please feel free to contact us by mail@HuastaTactical.com.

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Apr 16 2022

WHAT IS THE MATERIAL OF BULLETPROOF VEST ? -CHINABALLISTIC.COM

Modern weapons are becoming more and more modern, and their power and accuracy are getting bigger and bigger. Even so, the bulletproof vest still maintains strong vitality, not only because it can effectively reduce the damage to personnel such as bullets, but also because of the advance technology of bulletproof vest’s materials. So what materials are modern bulletproof vests made of ?

The bulletproof vest is mainly composed of two parts: the jacket and the bulletproof layer. The jacket part is mainly made of common chemical fiber materials. The materials of the bulletproof layer are diversified, which are divided into different categories such as metal materials, ceramic materials, Kevlar materials developed in the United States, ultra-high molecular weight polyethylene fibers, and liquid protective materials. The combination forms a protective structure.

The bulletproof layer can absorb the kinetic energy of the warhead or shrapnel, and has a significant protective effect on low-speed warheads or shrapnel, which can effectively reduce the damage of bullets to the human body. At present, the bulletproof vest usually adopts the NIJ standard of the United States. The NIJ standard divides the bulletproof vest into six levels according to the protection ability from low to high, namely: Level I, Level IIA, Level II, Level IIIA, Level III, Level IV. Among them, the level IV has the strongest protection ability, which can prevent the armor-piercing projectile with a speed of 850M/S launched by the M1.

Depending on the material of the bulletproof layer, modern bulletproof vests are usually distinguished into 3 generations.

The first generation of bulletproof vest is a hard bulletproof vest, which mainly uses special steel, aluminum alloy and other metals as bulletproof materials. This type of bulletproof vest is heavy, usually around 20KG, which requires a relatively large load on people and is uncomfortable for people to wear. The most important thing is that its ballistic resistance is average, and it is easy to produce secondary fragments. In general, it is more like the steel armor or iron armor worn by ancient soldiers.

The second generation of bulletproof vest is soft bulletproof vest, usually made from multiple layers of high-performance fiber fabrics such as Kevlar. Compared with the first generation of bulletproof vest, it is very light in weight, only two to three kilograms. Because it is made of fiber fabric, the texture is very soft, and it is more comfortable for people to wear, and it is not easy to be seen wearing this kind of bulletproof vest. , the concealment is better. The most important thing is of course the bulletproof ability. It can prevent the shooting of pistols from 5 meters away, and it will not produce secondary shrapnel, but it may cause non-penetrating damage, and it feels like being hit by objects such as stones. In addition, for bullets fired by rifles or machine guns, soft bulletproof vest of general thickness is difficult to resist.

POLYETHYLENE

ARAMID

The third-generation bulletproof vest is a composite bulletproof vest. As the name suggests, it uses a variety of materials. Usually, lightweight ceramic sheets are used as the outer layer, and Kevlar and other high-performance fiber fabrics are used as the inner layer. It is the main development direction of future bulletproof vest.

BULLETPROOF CERAMIC PLATE LEVEL 4

At present, the materials and technologies of bulletproof vests are also under continuous development. The latest generation of bulletproof vests such as nano bulletproof vests and liquid bulletproof vests are all under research and development. It is believed that the protective ability and human comfort of future bulletproof vests will be improved.

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Apr 16 2022

WHAT IS THE FUNCTION OF BULLETPROOF VEST ?-CHINABALLISTIC.COM

Similar to the role of ancient armor, it is used as a defensive weapon for offense. Bulletproof vest is a personal body protector used to absorb the impact force of bullets fired by guns or explosive fragments. Different types have different operating principles and are divided into full soft and reinforced/composite.

All-soft bulletproof vest, made of many layers of tightly woven aromatic polyamide or ultra-high molecular polyethylene, can withstand pistol, shotgun bullets or fragmentation attacks from explosives such as grenades, as well as long-distance Automatic rifle attack, the advantage is that the user can move flexibly, light and comfortable
Reinforced/composite bulletproof vest, with a metal or ceramic protective layer, can withstand close-range shooting of rifle bullets, but it is easy to crack. The advantage is that it can withstand more powerful weapons than pistols, usually law enforcement officers or security personnel. Full soft bulletproof vest is used, while soldiers on the battlefield or special police officers who need to face weapon attacks at close range often use reinforced/composite bulletproof vest.

Bulletproof vest usually has two functions:

Bulletproof fragments: High-speed fragments produced by the explosion of various explosives such as bombs, mines, artillery shells and grenades are one of the main threats on the battlefield. According to the survey, the threats faced by soldiers in a battlefield are in order of magnitude: shrapnel, bullets, blast shock waves and heat. Therefore, the function of bulletproof sheet should be emphasized very much.
Prevent non-penetrating damage: The bullet will produce a great impact after hitting the target, and the damage caused by this impact on the human body is often fatal. This kind of injury does not appear to be penetrating, but it can cause internal injury, which is life-threatening in severe cases. Therefore, preventing non-penetrating damage is also an important aspect of reflecting and testing the ballistic performance of bulletproof vest.

On the one hand, the wearing performance requirements of bulletproof vest means that the bulletproof vest should be as light and comfortable as possible without affecting the bulletproof ability, and people can still complete various actions flexibly after wearing it. In addition, due to its special use environment, bulletproof vest should also consider the compatibility with other weapons and equipment.

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