The Power Fitting Yoke Plate is primarily made of traditional metal materials. However, during the production process, we continuously innovate, moving towards lightweight and corrosion-resistant new composite materials. Our manufacturing processes also focus on structural strength and corrosion resistance. Below, we will detail the process flow:
Material selection: For most high-voltage line stress scenarios, we usually choose low carbon steel or alloy steel. In order to achieve the requirements of lightweight and high corrosion resistance, many users choose aluminum alloy material with galvanized surface to improve corrosion resistance;
Processing technology: First, cut the yoke plate to obtain the correct size, then drill holes precisely to meet the connection of subsequent components. Through hot-dip galvanizing, a zinc layer is formed on the surface to resist outdoor wind, rain, ice and snow corrosion, thereby extending the service life.
Selecting a Power Fitting Yoke Plate for a specific system requires considering factors such as voltage level, stress conditions, and environmental conditions. Of course, it must conform to industry standards. A perfect match between the connecting components ensures stable system operation. The following parameters can be referenced when making a selection:
Matching system voltage: Power lines of different voltage levels have different requirements for the strength and adaptability of yoke plates. For overhead lines of 110kV - 500kV, galvanized yoke plates with strong versatility can be selected. For high-voltage lines of 220kV and above, due to the large conductor cross-section and high load, reinforced yoke plates are suitable;
Stress parameters: Calculate the static and dynamic loads generated by conductor self-weight, snow accumulation, wind force, etc. If the load is below 70kN, a small yoke can be selected; for lines with 70-110kN, a medium-strength yoke should be selected; for high-voltage heavy-load lines above 110kN, a high-strength alloy yoke should be selected;
Corrosion protection process: Different usage environments have different requirements for the corrosion protection and cold resistance of Power Fitting Yoke Plate. In coastal areas, industrial areas and other environments with high salt spray and high corrosion, hot-dip galvanized thickened yoke plates are selected, while alloy structural steel yoke plates with low cold brittleness are selected in cold regions to ensure impact toughness at low temperatures.
For some older or refurbished scenarios, standard Power Fitting Yoke Plates are not suitable. Therefore, we need to customize them. Customization requires considering working conditions, production process standards, and quality control requirements to ensure that the finished product is suitable for the actual scenario and complies with safety regulations. The customization process is as follows:
Define requirements
Determine the application scenario, specify the voltage level, load and tension of the power line to be adapted, the installation environment, the structure and dimensions, including the type of Power Fitting Yoke Plate, the number and spacing of holes, the plate thickness and overall shape, and the material selection and surface treatment process;
Sample production
Based on relevant international standards for power fittings, complete the structural diagram, clarify the material ratio, processing technology and heat treatment parameters. After the scheme is determined, enter the sample stage. After the sample is produced, the appearance is polished, burrs are removed and other treatments are carried out. The sample is then transported to the user for performance testing. Any unsuitable parts are modified.
Mass production
Raw materials are prepared, standard-compliant plates are selected, and the plates are manufactured through processes such as cutting, stamping, and bending. The strength and stability of the yoke plates are improved through heat treatment, and the surface is hot-dip galvanized and anodized to enhance corrosion resistance and wear resistance. The entire production process is subject to full-process process control to avoid dimensional deviations.
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