Polyester oxford fabric is mainly used to make flood and rain prevention products. The warp of the fabric adopts 200D nylon air variable silk and the weft adopts 160D nylon air variable silk as raw materials. It is a plain weave structure and the product is woven by water spraying. After the dyeing and finishing and coating process, the grey fabric has the advantages of soft hand feeling, strong drapability, novel style, and waterproof performance. The cloth has the luster effect of nylon…

At present, PVC is widely used in domestic and foreign disposable syringes. It has the advantages of excellent comprehensive physical and mechanical properties, low price, and simple production technology. However, PVC as a disposable medical device has the following disadvantages:

1. There may be a small amount of polyethylene monomer in PVC, which has been proved to be a carcinogen; Plasticizers that must be used in processing may gradually migrate out of the contaminated solution…

The most popular digital product on the market since 2020 is tws mini wireless earbuds. TWS is also called a wireless headset in daily life.

Because the working principle is that the mobile phone is connected to the main headset, and then the main headset can quickly connect the secondary headset through the wireless way, so as to realize the real Bluetooth wireless separation of left and right channels.

When it comes to its history, we have to start with the apple. After the…

1. There are two types of luer lock disposable syringe: plastic and glass. Generally speaking, plastic syringes are disposable sterile syringes because of their low processing cost and further avoiding the risk of transmitting diseases through blood. Glass syringes are still used in medical treatment, because it is troublesome to disinfect with autoclave every time, so their application is limited.

2. It is illegal to reuse plastic needles even if the needles are replaced.

3.…

Nomex filter bags often encounter some puzzles and problems in the process of operation. Air leakage of dust collector is a common problem. Air leakage will not only reduce the whole dust removal effect, but also directly shorten the service life of Nomex filter bag dust removal cloth bag.

In order to prolong the service life and dust removal efficiency of Nomex filter bags, air leakage must be prevented. Here are two effective methods to prevent air leakage:

How to Do with Air…

Coaxial cable connector Basics

Many standard connector formats, such as type D connectors and many other multi-channel connectors, consist of a series of pins with parallel connections to each other. Coaxial cable connectors are usually very different and have some quite different characteristics.

Coaxial cable connector Basics

1. Shielding

Since RF signals can be radiated, on the contrary, it is usually necessary to prevent foreign objects from being picked up.…

Polyester oxford fabric is an important variety of synthetic fiber and the trade name of polyester fiber in China. It is a fiber made from purified terephthalic acid (PTA) or dimethyl terephthalate (DMT) and ethylene glycol (eg) through esterification or transesterification and polycondensation, polyethylene terephthalate (PET), spinning and post-treatment. Polyester is widely used in the manufacture of clothing and industrial products. Polyester has excellent setting properties. The flat,…

Polyester oxford fabric is mainly used to make flood and rain prevention products. The warp of the fabric adopts 200D nylon air variable silk and the weft adopts 160D nylon air variable silk as raw materials. It is a plain weave structure and the product is woven by water spraying. After dyeing and finishing and coating process, the grey fabric has the advantages of soft hand feeling, strong drapability, novel style and waterproof performance. The cloth has the luster effect of nylon silk.…

Why is waterproof stretch fabric waterproof? What are waterproof stretch fabric and their principles waterproof fabric principle? Waterproof stretch fabric is a new type of textile fabric, its composition is made of polymer waterproof breathable material (PTFE film) plus fabric composite fabric.

Principle of Waterproof Stretch Fabric

Under the condition of water vapor, water particles are very small. According to the principle of capillary movement, water particles can…

As an important part of passive components, RF coaxial connector has good broadband transmission characteristics and a variety of convenient connection modes, so it is widely used in test instruments, weapon systems, communication equipment, and other products. As the application of RF coaxial connector almost penetrated all sectors of the national economy, its reliability has attracted more and more attention. This paper analyzes the failure mode of the RF coaxial connector and discusses…

By the 2 layers / 3 Layer Soft Shell Fleece Fabric or Micro-porous PU membrane with fabrics, Provide you high performance waterproof, wind-off and moisture permeability/breathability, keep you warm and dry with comfortable.

TPU membrane Tech:

By water blocking layer – TPU membrane to stop water and moisture out of clothes. Using the hydrophilic property of the TPU membrane to absorb clothes inside sweat and moisture by the different air pressure of clothes’ outside and inside…

The advantages of small agricultural crawler tractors:

small agricultural crawler tractors

1. Lower grounding ratio to protect soil

The results show that seeding rates are only 30% - 40% and 80% - 90% after being compacted by wheel hauling. In the paddy field, the wheel ruts affect the transplanting and harvesting and even cause the mud feet to deepen continuously and cannot be cultivated.

2. Great traction, obvious advantages of deep turning and load-bearing…

There are three kinds of coaxial cable connector interfaces -- threaded connection, bayonet connection, and push in self-locking connection. The choice of interface type connector is generally determined by its purpose. Of course, electrical and mechanical performance requirements must be met. Here are several common coaxial cable connectors.

Three Kinds of Coaxial Cable Connector Interfaces

1) BNC coaxial cable connector adopts bayonet connection. It is mostly used for RF…

At present, there are many kinds of steel wire braiding machines, including vertical, horizontal, single-layer, double-layer, and multi-layer. According to different materials used for, different hose diameters, different spindles used, and different prices.

At present, the company has become the first brand of braiding machinery technology. We have pioneered a high-precision automatic weft density system, precision constant tension retraction and release device, multi-axis asynchronous…

Automatic wire take up is to use multiple take up winches, add up to 4 concentric contacts, store and release the energy of surface scroll spring, and one-way locking of the ratchet wheel.

When the power line is pulled out, the surface scroll spring stores energy. When the pull-out is stopped, the rotating shaft rotates under the action of the scroll spring until it is locked by the ratchet, and the power line stops acting; When taking up the wire, use the button or other pipes to…

According to different process requirements, the driving motors of wire take up machine include ordinary AC motor, AC torque motor, electromagnetic speed regulating motor, variable frequency motor and DC motor. To a great extent, the selection of motor type determines the performance of wire take up machine and its cost. The torque motor and electromagnetic speed regulating motor can be selected for the system with less strict wire take up tension; High speed wire take up machine with looper…

Nowadays, wire braiding machine has been successfully used in many places, usually for weaving clothing, rope, and elastic belt. However, it is worth mentioning that if it is used for a long time, it is bound to be worn or broken down. Therefore, it is necessary to do some major and minor repairs in daily life, and we need to remember some important aspects.

The repair of the wire braiding machine is to dismantle the parts of the mechanical part, arrange and clean them, and replace the…