12 results about "Kevlar" patented technology

The invention relates to a low-damage secondary energy-gathered jet cutting device for a fiber composite material. Comprising a buffer protection cover, a linear cutter module, a shaped charge module and an explosive-proof body arranged between the linear cutter module and the shaped charge module. The shaped charge module consists of a plurality of micro shaped charge units which are linearly arranged, and is used for pre-puncturing a row of pre-guide holes to form a continuous stress concentration line and a crack propagation prefabricated path; and the linear cutter module is detonated in a delayed mode, and final cutting is completed along the prefabricated path. According to the method, the problems of material tearing, layering, rough cutting boundary and the like are solved through a pre-guiding-post-cutting cooperation mechanism by means of guiding of prefabricated stress concentration points and sequential control of subsequent cutting, the smoothness and quality of a cutting surface are improved, the fiber damage problem is reduced, and the production efficiency is improved. And the method has a wide application prospect in precise cutting of high-performance composite materials such as carbon fibers and Kevlar used in the fields of aerospace, rail transit, high-performance ships and the like.

The present application provides a kind of multifunctional flexible composite protective structure and preparation method thereof, the composite protective structure is from outer layer to inner layer in turn nanofiber aerogel phase change composite film (KNA / PEG), nanofiber aerogel film (KNA), silica aerogel composite fiber felt, shear hardening / kevlar (SSE / Kevlar) protective main structure, the shear hardening / kevlar protective main structure is the shear hardening precursor Kevlar prepreg stack after heat treatment obtained.The multifunctional flexible composite protective structure of the present application has very low thermal conductivity, low density, flame retardancy, low infrared emissivity, flexibility and impact protection, can block the heat of soldier human body and limit the emission of infrared thermal radiation.

The utility model discloses a lightweight high-strength communication cable, which comprises a conductor assembly, an insulating layer, a shielding layer, an enhancement layer and an outer protective layer, the conductor assembly is composed of a silver-coated copper wire, the diameter of the silver-coated copper wire is set to be 0.5 mm, the conductor assembly is of a multi-core structure composed of a plurality of silver-coated copper wires, and the outer protective layer is arranged between the plurality of silver-coated copper wires. The shielding layer is composed of a shielding layer inner layer and a shielding layer outer layer, the shielding layer inner layer is made of a silver-plated polyester film, the shielding layer outer layer is made of a woven nickel-coated aluminum metal net, the reinforcing layer is composed of a first reinforcing layer and a second reinforcing layer, the first reinforcing layer is made of Kevlar fiber braided fabric, and the second reinforcing layer is made of a Kevlar fiber braided fabric. And the reinforcing layer II is made of a high-performance polymer. Through the above structure, compared with a traditional steel or metal enhancement layer, the cable is light in weight and high in strength, the overall weight of the cable is further greatly reduced, installation and maintenance are convenient, the effect of double shielding layers is achieved, and signal integrity and anti-interference performance are guaranteed.

The aramid fiber self-adaptive wrapping interception structure is made of dual-modulus Kevlar fabric and can automatically contract in the radial direction under the impact of a high-speed conical penetration body, encircle a conical surface and form self-locking, and slippage, penetration and secondary damage of the penetration body are effectively prevented. The structure is flexible, lightweight and comfortable to wear, can be independently used or compounded with a shape memory alloy protection plate to form an efficient double-layer bulletproof system, and is suitable for mass production application of military police bulletproof equipment.

A safety device for a breaker hammer is provided to enhance safety by preventing stray debris from flying out during operation and causing injury or damage within the operating environment. The cover device comprises multiple layers: EPDM heavy-duty rubber as a base, 304 stainless steel woven wire net for filtration and heat resistance, heavy-duty filter fabric for additional particle capture, and Kevlar fabric for impact resistance. These layers are bonded together and secured around the hammer with ratchet tie-down straps. This protective cover ensures debris containment, reduces the risk of injury and property damage, and allows construction work to proceed safely in high-traffic areas. The device's design balances durability, flexibility, and ease of installation, making it suitable for various construction settings.

1. The name of the design product: mobile phone protective shell (Kevlar star river series). 2. The use of the design product: for protecting and decorating mobile phones. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: perspective view.

A protective shirt designed to prevent puncture and abrasion injuries while maintaining comfort, flexibility, and a professional appearance. The shirt includes a multi-layer fabric construction comprising an outer layer of spacer fabric for cushioning, a middle layer of puncture-resistant material such as para-aramid fibers (e.g., Kevlar®), and an inner layer of soft jersey knit fabric for skin comfort. The shirt features long sleeves with integrated cuffs and thumb openings, a front yoke with a zipper for easy wear, and strategically positioned breathable mesh panels at the underarms and back for temperature regulation. Suitable for medical professionals, educators, mental health providers, and individuals with autism or other conditions that may lead to self-injury, the shirt combines protection with aesthetics and mobility. It may be worn in clinical, educational, and everyday settings without drawing unwanted attention, offering both safety and discretion.

The utility model provides a UTP cable of a vehicle sliding door. The UTP cable sequentially comprises twisted pair wire cores, a filling layer, a polyester belt and a sheath from inside to outside. Each wire core comprises a conductor and an insulating layer wrapping the periphery of the conductor; the conductor is formed by twisting 19 strands of wires; each strand of lead is formed by twisting seven aluminum coating basalt fibers with the diameter of 23 microns; the insulating layer is made of a PP material; and the sheath is made of a modified TPE-S material. And the filling layer is made of 500D NY (Nitrogen Yarn) wires or Kevlar (Kevlar). The diameter of the conductor is 0.13 mm < 2 >. The UTP cable provided by the utility model has the characteristics of high tensile strength, bending resistance and reciprocating motion resistance.

Waterproof covers for prosthetics. The waterproof cover may be used with a prosthetic hand or other prosthetics or orthotics. The waterproof cover protects the interior components of the prosthetic. The cover may be flame-resistant. The cover may include two layers. An example cover may have an external layer of fabric knitted from aromatic polyamide (meta-aramid) fiber such as NOMEX® yarn and an interior polyurethane or silicone layer. Another example cover may have a single layer, made of woven aromatic polyamide fiber such as NOMEX or Kevlar® with a silicone coating on one or both sides. For a prosthetic hand, the cover may extend between a thumb and a palm.

The invention relates to a preparation method of a high-temperature-resistant bulletproof composite board for an armored car and the high-temperature-resistant bulletproof composite board, which is characterized in that a bulletproof material with Dupont Kevlar 400g 3000D cloth specification is adopted, and after being soaked with an acid ester ethylene / propionate copolymer emulsion, the bulletproof material is heated to 80 DEG C by infrared rays for 60 minutes and cured for later use; preparation of a glass fiber composite layer: preparing a bulletproof material with a high-temperature-resistant glass fiber 380G cloth specification; after soaking with an acid ester ethylene / propionate copolymer emulsion, heating to 80 DEG C for 60 minutes by utilizing infrared rays, and curing for later use; the Kevlar fiber composite layer is stacked on the glass fiber composite layer, and the surface seawater waterproof cloth is attached to the surface of the Kevlar fiber composite layer; and pressurizing to a preset thickness by using a 500T press vulcanizer at the pressurizing temperature of 90 DEG C for 24 hours to obtain the composite board. Compared with an existing composite board, the composite board is lighter, stronger and higher in high-temperature resistance, so that the protection performance and maneuverability of the armored car are improved, more units can be equipped with advanced armored protection systems, and the overall defense capacity is improved.

This invention relates to the field of cable sheathing technology, specifically disclosing an ultra-fine wire high flame-retardant CAT6A signal transmission cable and its preparation method. The invention involves wrapping an insulating HDPE composite material around a conductor to form an insulated core wire, then using Kevlar fiber as filler and covering it with polytetrafluoroethylene tape to form the cable core. Finally, a flame-retardant TPE composite material is wrapped around the cable core. The resulting cable exhibits excellent flame-retardant properties, self-extinguishing after being removed from the fire, and superior insulation performance, meeting the needs of the network equipment connection industry. It also possesses signal integrity transmission performance at 15.0m using TIA Patch Cord Cat6A.

The application discloses a preparation method of a Kevlar protective shell with a damping structure and relates to the technical field of Kevlar protective shells. The preparation method comprises the following steps: S1, placing cut Kevlar pieces and organic silica gel in a forming mold, wherein one outer side of the organic silica gel is provided with a layer of TPU, and the outer side of the organic silica gel provided with the TPU is attached to the Kevlar; S2, the forming mold is firstly subjected to hot press forming, so that the Kevlar is bonded to the organic silica gel through the TPU, and a main body formed by the Kevlar and the organic silica gel is pressed into a protective shell semi-product with a back plate and a frame, the organic silica gel forms an inner side surface of the protective shell semi-product, and the Kevlar forms an outer side surface of the protective shell semi-product; S3, the forming mold is then subjected to cooling, so that the protective shell semi-product is cooled and formed; and S4, the frame of the protective shell semi-product is subjected to edge rolling through an edge rolling machine, so that the protective shell is obtained, the corner is smooth, the protective shell has a damping structure, and the preparation process is more simple and convenient.