The manufacturing process of the 3 Hole Strain Yoke Plate needs to be matched according to the load level to adapt to power transmission, machinery, and monitoring scenarios. The main process flow is as follows:
Raw Material Preparation: Select high-quality hot-dip galvanized steel, ductile iron, stainless steel, aluminum, etc., using laser cutting and plasma cutting, leaving a 3-5mm machining allowance to ensure plate thickness tolerance ≤ ±0.1 mm;
Ball Forming: Different materials are suitable for different forming methods. For example, ductile iron can be hot forged, steel plates can be cold stamped, and stainless steel is cut;
Precision Machining: CNC drilling machine is used for machining, with hole diameter tolerance H7 grade and hole spacing tolerance ≤ ±0.15 mm to ensure accurate assembly of bolts and pins. Hole openings are chamfered at 0.5×45°, and edges are deburred using a belt sander or CNC milling cutter, with a surface roughness Ra ≤ 1.6 μm to prevent stress concentration and installation scratches;
Corrosion protection: For 3 Hole Strain Yoke Plates used outdoors, the surface needs to be galvanized, pickling → fluxing → hot-dip galvanizing at 450℃, with a coating thickness of 65–85 μm, to achieve long-term corrosion protection.
The quality inspection of 3 Hole Strain Yoke Plates mainly includes dimensional accuracy, mechanical properties, and surface quality. Different application scenarios have different inspection requirements, making them suitable for both export and industrial applications.
Dimensional tolerance inspection: Hole diameter tolerance is measured using a coordinate measuring machine (CMM), and hole spacing tolerance is measured using a vernier caliper and CMM. Hole center distance deviation ≤ ±0.1 mm; diagonal deviation of triangular holes ≤ ±0.15 mm. Plate thickness is measured using a micrometer; flatness error ≤ 0.15 mm/m; no warping or deformation; hole chamfer is 0.5×45° or 1×30°; no sharp edges or burrs; length/width deviation ≤ ±0.2 mm, consistent with CAD drawings.
Surface quality inspection: Surface free of casting/forging defects such as cracks, porosity, sand holes, and slag inclusions; coating thickness 65–85 μm, uniform coverage without missed areas; salt spray test ≥ 1000 hours with no red rust, conforming to ISO 1461.
Mechanical property inspection: Tensile strength ≥ 400 MPa; fracture load ≥ 1.2 times the design value; fatigue resistance after 10⁷ alternating loads; yield strength ≥ 205 MPa. MPa, elongation ≥40%; Any 3 Hole Strain Yoke Plate that fails to meet the standards will not leave the factory. As a professional manufacturer, we are committed to being responsible to our users and ensuring they can purchase with confidence.
3 Hole Strain Yoke Plate is highly suitable for export promotion and user styling. During the production process, we continuously improve our manufacturing techniques to give the product more selling points. Our core competitiveness mainly focuses on the following aspects:
High reliability load-bearing capacity
The three-point positioning design ensures uniform load distribution, with a single hole force deviation of ≤±5%, avoiding single-point overload. The ductile iron is suitable for high-voltage power transmission, and the 316 stainless steel is resistant to chloride ion corrosion and suitable for marine applications. It balances lightweight and rigidity, and through heat treatment, it ensures a balance between strength and toughness, eliminating the risk of brittle fracture;
High precision and high compatibility
hole spacing deviation ≤ ±0.1 mm, flatness ≤ 0.15 mm/m, compatible with single and double string insulators, tension clamps, strain gauges, guide rail sliders, etc., supports various connections such as bolts, pins, and threads, has strong versatility, three-hole positioning does not require complex calibration, and subsequent testing and disassembly are convenient, which can reduce labor costs;
Customization Value
Cold stamping + automated drilling line production increases efficiency by 50% and reduces costs by 30%. Customization is supported for materials, hole layout, surface treatment, and load rating, adapting to special working conditions and non-standard equipment. Standard parts are delivered in 7 days, customized parts in 15–20 days. Small-batch trial orders and OEM/ODM are supported, suitable for export orders.
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