風電螺栓組合

DONGSHAO stands as a specialized manufacturer in the renewable energy fastening sector. The DONGSHAO Wind Power Bolt Combination is not merely a standard fastener; it is a safety-critical engineered solution designed for the rigorous demands of onshore and offshore wind turbines.

Unlike generic hardware, our wind power bolt combination is meticulously crafted to withstand extreme vibration, dynamic eccentric loads, and corrosive atmospheric conditions. As wind turbines scale to multi-megawatt capacities, the integrity of the tower, nacelle, and blade connections becomes paramount. DONGSHAO provides the reliability that wind farm developers and steel structure fabricators demand. We invite you to visit our factory to purchase the newest, best-selling, affordable, and high-quality Wind Power Bolt Combination.

技術規格及參數

為了確保與國際風塔標準 (IEC 61400-6) 的兼容性，我們的風力發電螺栓組合提供多種尺寸和屬性等級。

產品定義：什麼是風電螺栓組合？

The DONGSHAO Wind Power Bolt Combination typically includes a high-strength hex bolt, a heavy hex nut, and two hardened washers (flat + taper). This assembly is specifically engineered to connect ring flanges in tubular steel towers -5. As turbines grow taller (exceeding 140m hub heights), traditional bolting fails; our Wind Power Bolt Combination utilizes controlled preload tension to maintain clamping force under extreme vibrational stress -2.

主要技術優勢

我們知道，風力渦輪機機艙中的螺栓故障意味著代價高昂的停機時間和起重機費用。因此，風電螺栓組合優先考慮疲勞壽命和結構安全。

1. 超強的抗疲勞性（防鬆動）

Wind turbines experience millions of variable amplitude load cycles. Our Wind Power Bolt Combination is designed using principles of continuum damage mechanics to resist thread fatigue. We employ precision rolling technology (rather than cutting) for bolt threads, ensuring that the grain flow of the metal is uninterrupted, significantly enhancing tensile fatigue strength by up to 30%.

2. 腐蝕與環境保護

近海和沿海農場將緊固件暴露在 C5-M 腐蝕水平下。 東紹為風力發電螺栓組合提供專門的表面處理：

• 鋅片塗層：提供針對氯離子（鹽霧）的屏障，同時提供受控的摩擦係數 (μ=0.09-0.16)，以實現精確的扭矩張緊 -4。

• HDG（熱浸鍍鋅）：用於塔基基礎，提供對地面濕氣的犧牲保護。

• 筆記： 如果螺栓表面出現腐蝕坑，它就會成為裂痕的成核點，顯著降低疲勞壽命。我們的塗層可以防止這種引發 -3-6。

3. 預載損失的處理（嵌入）

In standard connections, micro-imperfections flatten over time, causing preload loss. The IEC 61400-6 AMD1 standard highlights new requirements for preloading processes -2. Our DONGSHAO Wind Power Bolt Combination accounts for this with high-quality surface finishes that minimize embedding losses, ensuring your flange remains tight for 20+ years.

應用及功能

風力發電螺栓組合的主要功能是提供故障安全、防滑連接。

• 塔架連接：將管狀鋼段固定在一起（L 型法蘭和 T 型法蘭）-2。

• 機艙到塔架：處理轉子旋轉產生的巨大力矩。

• 葉片到輪轂（根部接頭）：將複合材料葉片連接到轉子輪轂（高強度螺柱）。

• 基礎錨籠：嵌入混凝土基礎以固定整個塔（M36 至 M64 直徑）-5-8。

產品類別 

我們提供風力發電螺栓組合的兩種主要配置：

1. 黑色高強度螺柱：12.9 級。用於鎖緊精度要求高的機艙內部零件。

2. 超長和超大六角螺栓：直徑範圍從 20 毫米到 42 毫米（根據要求可達 64 毫米）。用於塔法蘭連接，具有耐用的熱浸鍍鋅或發黑表面，可控制摩擦。

為什麼選擇東紹？ （品牌及公司資訊）

Founded in the 1980s and headquartered in Hebei, Hebei Dongshao Fastener Manufacturing Co., Ltd. has evolved from a local supplier into a high-tech group enterprise. We are not traders; we are manufacturers.

我們的製造實力：

• 設施：10,000 多平方公尺的生產基地。

• 設備：高速螺帽成型機（台灣技術）、先進的冷鐓設備、熱處理廠（東邵熱處理廠）。

Global Reach: We have successfully exported our fasteners to Southeast Asia, Europe, North America, and Africa. Our Wind Power Bolt Combination is already utilized by major infrastructure builders, including China Railway Seventh Group, CFHI Tianjin Heavy Industry, and Sinohydro.

認證：我們在嚴格的品質管理系統下運作，確保每批風電螺栓組合都是可追溯的。

生產及檢測設備

為了確保風力發電螺栓組合的機械性能，我們採用內部加工：

• 冷成型：高速螺帽成型機和冷鐓機。

• 熱處理：精密回火爐（對於達到 10.9/12.9 級強度且無氫脆至關重要）。

• 滾絲機：高精準度滾絲機。

• 測試：磁粉探傷、拉伸試驗機和硬度計。

FAQ（常見問題）

Q: What is the difference between a standard bolt and a Wind Power Bolt Combination? A: Standard structural bolts are designed for static loads. The Wind Power Bolt Combination is specifically designed for eccentric loads and high-cycle fatigue. The thread rolling process, material purity (free of inclusions to prevent cracking), and controlled friction coefficient are rigorously controlled for dynamic loads -6.

Q: How do I ensure the preload force is correct during installation? A: For our 10.9 grade Wind Power Bolt Combination, we recommend using the Torque + Angle method (Turn-of-Nut). We provide technical data sheets with specific friction coefficients (µ-total) to match your hydraulic torque wrench settings.

Q: Can DONGSHAO provide custom lengths or special materials? A: Yes. We specialize in custom solutions. If you need an odd size between 20mm and 42cm in diameter, or require specific material like 42CrMo for low-temperature impact resistance (e.g., -40°C/ -40°F for cold climate turbines), our technical team can produce the Wind Power Bolt Combination according to your drawing.

Q: How do you prevent corrosion fatigue? A: Corrosion fatigue is the #1 killer of offshore bolts. Our surface treatment (Geomet/Zinc Flake) provides a sacrificial barrier. We advise clients in high-humidity zones to use our coated Wind Power Bolt Combination to prevent corrosion pitting, which drastically reduces the stress concentration factor -9.