عملية الرأس على البارد هي واحدة من العمليات الجديدة للتشغيل الآلي بالضغط ذات القطع الأقل أو بدون قطع
المعدن. وهي طريقة معالجة تستخدم التشوه البلاستيكي للمعدن تحت تأثير
قوى خارجية، وبمساعدة القوالب، تقوم بإعادة توزيع ونقل حجم المعدن لتشكيل
الأجزاء أو الفراغات المطلوبة. عملية الخراطة على البارد هي الأكثر ملاءمة لإنتاج الأجزاء القياسية
أدوات التثبيت مثل البراغي والبراغي والصواميل والمسامير والمسامير والدبابيس وغيرها
Flat head shear bolts are specialized fasteners designed to break or “shear” at a specific torque or load, protecting machinery from damage by preventing overload. Here’s a detailed description:
Features of Flat Head Shear Bolts:
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تصميم الرأس:
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Flat Head (Countersunk): Allows the bolt to sit flush with the surface when installed, reducing protrusion and improving aerodynamics or safety in moving parts.
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Shear Groove: A pre-weakened section (usually under the head or along the shank) ensures controlled breaking at a predetermined torque.
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المادة:
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Typically made from hardened steel, stainless steel, or other high-strength alloys to ensure consistent shear strength.
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May have corrosion-resistant coatings (e.g., zinc plating) for durability.
- Flat head shear bolt
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Function:
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Acts as a mechanical fuse, shearing off when excessive force is applied (e.g., in agricultural equipment, snowblowers, or conveyor systems).
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Prevents costly damage to gears, shafts, or other components by failing first.
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Thread Type:
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Fully or partially threaded, depending on the application.
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Thread pitch may be coarse or fine, matching the machinery’s requirements.
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التطبيقات:
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Agricultural Machinery: Protects drivelines in tractors and harvesters.
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Snowblowers & Rotary Cutters: Shears when blades hit obstructions.
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Industrial Equipment: Used in gearboxes, couplings, and safety clutches.
Why Use Shear Bolts?
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Safety: Prevents catastrophic failure.
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Cost-Effective: Replacing a bolt is cheaper than repairing machinery.
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Precision: Engineered to shear at exact loads for consistent performance.
نصائح للتركيب:
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Always use the specified grade/size—improper bolts may not shear correctly.
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Tighten to the recommended torque; over-tightening can prematurely weaken the bolt.
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Flat head shear bolt
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Replace with identical shear bolts after failure—never substitute with standard bolts.