Views: 0 Author: Site Editor Publish Time: 2023-03-10 Origin: Site
Nylon cables are equivalent to the lifeblood of a production chain. Simply put, without its existence, your daily work will undergo different changes. Although nylon cables are closely related to our lives, there are still many people who are interested in nylon cables and their products. There are many irregularities in the use. Now Xinshengda Cable will introduce two little-known misunderstandings to you. I hope you can take precautions when using them.
This point is a common misconception by quite a few users and even some companies that use cables. In order to save money, the bosses of some nylon cable companies ignore safety and choose inferior cables with low price, no guarantee of quality, and high possibility of accidents.
We know that due to factors such as the safety of cables, the price of cables cannot meet the requirements of some users, but some individual and private enterprises cannot meet the requirements of national standards for wires and cables in terms of material selection, production technology, and testing methods. Safety will not be guaranteed, moreover, they are making a fuss about cheap cheap cables, flooding the market, pandering to some users, buying those cheap and unsafe cables, failing quickly, even caused a major accident.
Improper selection of nylon cable specifications
Some users have insufficient knowledge of their own electrical requirements and environmental conditions, and often choose the wrong model because they do not know enough about the use range, requirements, and performance of nylon cable models. In addition, they ignore the environmental considerations of nylon cables. For example, in high-temperature environments, the use of general-purpose rubber-sheathed soft nylon cables results in aging, breakdown or even scorching of the sheath, which directly affects production and wastes economy.
Therefore, when selecting and using nylon cables, we must consider many aspects. When purchasing nylon cables, we should pay more attention to the model, material, specification, rated voltage, etc. For the laying and use environment, it is necessary to pay attention to temperature, humidity, surrounding organisms (termites, rats) and chemical corrosion.
The purchase and use directly determine the service life of nylon cables. In order to maximize the utilization of nylon cables, we must pay attention to the selection of correct nylon cables and various misunderstandings in use. This is also a basic measure to protect the safety of our lives and properties.
Nylon wire and cable ground sense coil wires are widely used in aircraft low-voltage lines, expressway monitoring equipment line installation, highway inductance coil special lines (electronic police lines, ground sense coil lines) are also used in lighting fixture wiring, road Wires for high pole lamps, low-voltage lines or telecommunication instrument lines, featuring wear-resistant, waterproof, cold-resistant, oil-resistant and gasoline-resistant mixtures, corrosion-resistant, fire-resistant, not easy to burn, not easy to age, and environmentally friendly.
1. Introduction of PA6 nylon wire and cable sheathing material
PA6 is a nylon wire and cable sheathing material. It is polyhydantam (PA6), also known as polyamide 6 and nylon 6. It is independently developed by our company and popularized and utilized. It is a medium-viscosity material with good thermal conductivity. Stability, suitable for extrusion molding.
2. The characteristics of PA6 nylon material
1) Good processing performance;
2) Good flexibility, toughness and wear resistance;
3) Good self-lubricating properties;
4) Good chemical corrosion resistance, especially gasoline, engine oil and other oil products
3. Application of PA6 nylon material
The material can be used for coating protection of various nylon wire and cable products, and can produce nylon wire and cable outer sheaths with different thickness requirements, such as: BVN, BVNVB, THHN, THHWN and other nylon cable products. The protective layer has been tested and when the thickness reaches 0.2mm, it can completely prevent termites from invading wire and cable products. When the thickness reaches 0.5mm or above, it can effectively prevent mice from biting nylon cables. Thereby completely changing the original method of adding certain chemical agents to the nylon cable sheath material to prevent mice and termites from biting the nylon cable.
The nylon wire and cable made of this material can be used in extreme environments such as buried underground, indoors, tunnels and pipelines, exposed outdoors, high and low temd fully meets ROHS environmental protection requirements.
4. Processing conditions of PA6 nylon material
1) Extrusion equipment: The gap between the construction barrel and the screw is not more than 0.1MM, which is convenient for the material to be fully plasticized.
2) Extruder rod: screw screw structure: it is recommended to adopt a general-purpose single-thread equidistant and unequal-depth screw structure; compression ratio: it is recommended to use a screw compression ratio of 1:3; length-to-diameter ratio: it is recommended to use L/D not less than 20 :1 screw aspect ratio.
3) Extrusion mold: It is recommended to use a semi-extruded tube extrusion mold. When installing the mold, make the end face of the mold core slightly indented from the outer end of the mold sleeve hole or make it parallel.
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