El proceso de estampado en frío es uno de los nuevos procesos de mecanizado a presión de menor o ningún corte
metal. Es un método de transformación que utiliza la deformación plástica del metal bajo la acción de
fuerzas externas y, con ayuda de moldes, redistribuye y transfiere el volumen de metal para formar
las piezas o formatos necesarios. El proceso de estampación en frío es el más adecuado para producir piezas estándar.
elementos de fijación como pernos, tornillos, tuercas, remaches, pasadores, etc.
Black nickel-plated pernos de cizallamiento are specialized fasteners designed to provide both corrosion resistance and a controlled breaking point under specific torque or shear stress. Here’s a detailed description:
1. Material & Construction:
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Metal base: Typically made from high-strength steel or alloy to ensure durability.
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Plating: Coated with black nickel, a dark, matte or semi-gloss finish that offers:
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Resistencia a la corrosión: Protects against rust and environmental damage.
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Atractivo estético: Provides a sleek, non-reflective black finish.
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Moderate Lubricity: Helps in tightening but is less slippery than zinc or chrome.
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2. Shear Bolt Design:
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Propósito: Designed to shear off at a predetermined torque or load, acting as a mechanical fuse to protect machinery from overload damage.
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Weak Point: Often has a notched or reduced shank diameter to ensure controlled breaking.
- Pernos de cizalla niquelados en negro
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Aplicaciones comunes: Used in agricultural equipment (e.g., rotary cutters, augers), automotive safety systems, and industrial machinery.
3. Key Features:
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Controlled Failure: Prevents costly damage by shearing before excessive force harms other components.
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Tipo de hilo: May have fine or coarse threads depending on application (e.g., metric or SAE standards).
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Estilos de cabeza: Hex head, flange head, or specialty heads for specific torque requirements.
4. Advantages of Black Nickel Plating:
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Durabilidad mejorada: More wear-resistant than plain or zinc-plated bolts.
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Decorative Finish: Often used in visible applications where aesthetics matter.
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Better Adhesion: Paint or coatings adhere better than to bright nickel.
- Pernos de cizalla niquelados en negro
5. Common Uses:
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Agriculture: Shear bolts in PTO shafts, mower decks, and harvesters.
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Automóvil: Safety-critical shear points in seat belts or drivetrains.
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Maquinaria industrial: Overload protection in conveyors or gearboxes.
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