The tube extruded from the die of the machine head is cooled to make it hard and set. There are generally two ways of setting the outer diameter and inner diameter by using the sizing sleeve. Among them, the outer diameter shaping
The screw of the extruder is divided into 3 sections: feeding section (feeding section), melting section (compression section), metering section (homogenization section), these three sections correspond to the material to form 3 f
When mixing at high speed, the additive penetrates into the voids of the PVC resin, so that the additive is evenly dispersed in the resin. Considering that the temperature above 100°C is conducive to the evaporation of water v
Polyvinyl chloride is a polymer formed by polymerization of vinyl chloride monomer in peroxide, azo compound and other initiators; or under the action of light and heat according to the mechanism of free radical polymerization.
Polyvinyl chloride, referred to as PVC, is a polymer made of vinyl chloride as a monomer through free radical polymerization. Because the electron-withdrawing substituent of the chlorine atom on vinyl chloride is p-π conjugated
paracords is not only one piece of versatile survival gear, but also a fun way to pass the time. Anything that paracords can do, ordinary rope can do too. However, the versatility of paracords is something it doesn&
twisted rope Three paracords with a length of about 90 cm are gathered into one bundle. A knot at the head connects the 3 paracords together. At the end each paracord is tied with a bag containing stones. If you want to catc
In our impression, it seems that the military, or military specifications, think its quality is very good. However, maybe its specifications are military, but that doesn't mean its quality can reach military grade. True
How to identify military paracord is actually very simple. As mentioned before, the entire paracord is 100% nylon. And each inner core is composed of three 100% nylon thin wires. Some unscrupulous merchants often use poly
This is also very simple, you can light one end of the paracord with a lighter, and then glue the paracord to the nylon. Nylon will bond to nylon and polyester will bond to polyester. But nylon won't bond to polyester.