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May 5 2022
THE DEVELOPMENT HISTORY OF POLICE BULLETPROOF VEST– Chinaballistic.com

The police body armor is composed of a jacket and a bulletproof layer. The bulletproof layer is mainly made of metal and other protective materials, which can absorb the kinetic energy of the warhead and reduce the speed of the warhead, thereby protecting the human body. So, what kind of process did the body armor go through? What are the relevant properties of the inner body armor? Let’s take a closer look at the history of bulletproof vests and related characteristics.

      Special bulletproof clothing Lightweight bulletproof clothing is a kind of personal protective military uniform used for protecting the human torso from projectiles or shrapnel, mostly in the shape of a vest. Bulletproof clothing made of bulletproof layer and jacket is a kind of individual protective military uniform used for protecting the human torso from projectiles or shrapnel. The thickness of the bulletproof layer is determined by the balance between protection performance and wearing comfort according to different objects. Soldiers wearing alone can significantly reduce battlefield mortality and injury rates.

      Police bulletproof clothing is developed on the basis of armor. During the First World War, 80% of the total casualties on the battlefield were caused by low- and medium-velocity stray bullets or fragments, and experts were inspired by ancient armor to develop alternative bulletproof suits in the late war. In World War II, casualties caused by shrapnel still accounted for about 60%. People paid more and more attention to the development of bulletproof clothing. In the early 1940s, the United States and some Western European countries began to develop alloy steel and aluminum alloys. , Chin alloy, glass fiber reinforced plastic, ceramics, nylon and other materials bulletproof clothing, and used in the battlefield.

     In the 1960s, the second generation of bulletproof clothing that replaced high-quality steel with high-quality chemical fiber materials began to appear. Since the 1970s, bulletproof clothing has undergone new developments. Body armor can be divided into three types: soft, hard and soft-hard composite. The material of the soft body armor is mainly high-performance textile fibers. These high-performance fibers are much higher than the energy absorption capacity of general materials, giving the body armor the bulletproof function. softness, called soft body armor. The protection level of soft body armor is usual NIJ IIIA AND below.

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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how to maintain bulletproof vest
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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bulletproof vest
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

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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Bulletproof vest
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.

  1. 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
  2. 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:

  1. 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.
  2. 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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