2 breakdown by surface treatment
PVC plastic coated barbed wire
Reason was to strengthen the intensity of anti-corrosion of surface treatment, prolong service life. Galvanized surface treatment is galvanized barbed wire as the name suggests, can be electroplated zinc and galvanizing; PVC barbed wire for surface treatment are PVC coated handle, inside the barbed wire black wire, galvanised wire and hot-dip galvanized wire.
Clad aluminum barbed wire is just listed a new product, it is coated with a layer of aluminum, also known as aluminum. We all know that aluminum does not rust, so aluminum can greatly increase the surface against corrosion, make its life longer. The use of barbed wire: factory, private villas, and first floor of residential buildings, construction sites, banks, prisons, banknote printing plant, military machines, bungalows, low wall, the security, protection, and more.
The history of barbed wire:
Before the invention of barbed wire, human looking for fencing material around them, mainly trees, rocks, prickly brush and mud and other materials. When colonists came to the Americas, found the demand, so they sought to create an economic fence. In more than 400 years ago, began producing hot cold rolled steel wire. In 1870, the length specification of high quality sleek silk has emerged. Stockmen used the smooth wire fencing but found that poultry was still went in and out. In 1867, when two inventors tried to smooth silk top with thorns. But there is no proof of practice. Until 1874, Michael Kelly invented a very practical methods are coupled with barbed wire, and they began to use a lot of.
Joseph Glidden found in little village there is a wooden rope there are many sharp nails on its side, tied to a wire is smooth on the inside. This discovery made him very excited. Also contributed to his invention of barbed wire. Glidden placed the thorn in an improvised coffee bean grinding tools and intervals along the barbed and smooth wire with a wire around the other stabbed screwed up and fixed the position.
Barbed wire boom:
Glidden successful invention continues today over 570 barbed wire patents of invention. It is "one of the inventions that shaped the world."
Glidden is known as the father of barbed wire. Many companies started production of equipment for mass production.
Production and technology:
In China, most production thorn rope of factory used directly will plated zinc silk or will coated plastic wire processing into thorn rope. this series twist thorn rope of method will makes production efficiency has improve, but sometimes will has thorn silk enough fixed of malpractice. with technology of development, now also some production manufacturers began using plus some rolling spent of processes, makes wire surface no longer completely sleek, thus greatly improve has stable thorn from of role.
