Year1
- 材质：
- 热镀锌
- 长度：
- 1800
- 破断力：
- 50KN
Product status and types of pre-twisted hardware
Pre-twisted power hardware products are widely used in power transmission and distribution lines and optical cable communication lines. It has significant advantages such as easy installation, easy transportation and portability, small wear, corrosion resistance, good electrical performance, and strong versatility. Baoding Henglida has introduced internationally advanced technology and production equipment to develop pre-twisted wire fittings suitable for domestic lines.
With the widespread application of pre-twisted overhead line fittings, its advantages such as energy saving, easy construction operation, and maintenance-free are gradually recognized by everyone.
Pre-twisted tension clamps can completely replace the existing bolt-type tension clamps and wedge-type clamps of all structural types. Pre-twisted suspension clamps can completely replace the existing center rotary and pendant types. Suspension clamp pre-twisted splice strips such as , bag-type bowl-hanging plate type, type hanging plate type, etc. can completely replace the existing compression type and bolt-type splice fittings. Pre-twisted protective strips have the unique function of protecting and repairing various voltage levels. The structure of the pre-twisted fittings is simple. Its main mechanical principle is that the inner diameter of the pre-twisted wire is smaller than the outer diameter of the applicable conductor and optical cable cable. When installed on the conductor and optical cable cable, a uniform compressive stress is generated on the two contact surfaces. This is then converted into friction. If the inner diameter is too large and exceeds the upper limit of the design value range, the designed gripping force will not be achieved. If the inner diameter is too small, less than the lower limit of the design value range, it will be difficult to install the pre-twisted product, and its gripping force will not reach the designed gripping force due to the plastic deformation of the pre-twisted wire. The twist of the pre-twisted wire is usually the same as the twist of the cable for maximum grip. However, the rotation direction of optical cable fitting products is sometimes different from that of the optical cable to protect the optical fiber unit and reduce the lateral pressure on it.
The structure of pre-twisted wire fittings is simple, but there are many varieties and specifications:
() Pre-twisted wire power fittings products. Conductor splicing strips for aluminum stranded wires (and steel-cored aluminum stranded wires), full-tension splicing strips for steel-cored aluminum stranded wires (each includes wires of different sizes and materials, namely inner layer, middle layer, outer layer), Jumper connection strips, type connection strips, steel stranded wire pull-wire ground wire connection strips, aluminum-clad steel stranded wire connection strips, conductor connection tube reinforced connection strips, pull-wire tension clamps, conductor tension-resistant clamps, conductor suspension clamps , ground wire suspension clamps, protective wire (repair) strips. There are many commonly used specifications.
() Pre-twisted optical cable hardware products: tension clamps, suspension clamps, repair strips, tension clamps, and suspension clamps. There are many commonly used ones.
According to the above statistics, there are many commonly used specifications. Explain that there are many varieties and specifications of pre-twisted wire fittings products. The raw materials mainly include galvanized steel wire, aluminum-clad steel wire, aluminum alloy wire, copper-clad steel wire and other wire rods. There are various sizes and specifications, and there are other kinds of viscose, sand, etc. Materials and accessories. The production process and quality control are relatively complex, mainly including forming, shearing, chamfering, grouping, cleaning, gluing, marking, sand laying, twisting, bending, packaging and other processes. Some products also need to be processed. Special processing procedures such as lifting the head, rounding the head, and parroting the end. The equipment, tooling and molds required for the production of pre-twisted wire hardware products are all non-standard products and need to be developed by oneself. Each production company has different production conditions and has its own strengths and characteristics, but the processing principles and processes are basically the same. , the raw materials used are consistent with the standards, product technical requirements and quality inspection standards on which they are based.
< r:. :%>: :br>Baoding Henlida is a comprehensive enterprise integrating production, development, sales and services. Reliable quality is our guarantee and honest service is our responsibility. Service hotline: Manager Zhu
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