アクスルベアリングを保護するアクスルボックスカバー

Overview of The Axle Box Cover

The axle box cover is an important component for protecting the axle bearings, preventing dust, moisture and other substances from entering while also withstanding vibration and shock. In the core components of rail transit equipment, the axle box cover is a “shepherd” in the power transmission system; the material and performance directly affect the security and economy of the train operation. This seemingly ordinary protective device is actually a precise component that integrates materials science, mechanical engineering and operational mechanics. Its technological evolution has witnessed the upgrading process of the rail transit equipment manufacturing industry.

The Material Evolution of The Axle Box Cover

With the increase in train speed, the application of cast steel material has raised the tensile strength to over 450MPa, significantly improving the fatigue resistance. Entering the 21st century, the introduction of aluminum alloy materials has brought revolutionary changes. After a certain type of EMU adopted A356-T6 cast aluminum alloy; the single-piece mass decreased by 58% while maintaining a yield strength of 350MPa.

The Core Functions of The Axle Box Cover

(1)The protection device: the core functions of the dynamic sealing system adopt a three-layer composite seal structure; the outer silicone rubber weather resistance layer can withstand – 50 ℃～ 200 ℃ temperature changes, fluorine rubber provides chemical protection layer, the middle lining PTFE reduces the friction coefficient. Tested in accordance with the EN 13649 標準, this structure can achieve a particle barrier efficiency of 99.97%.

(2)Mechanical bearing network: through the topology optimization design, inside the cover body building bionic honeycomb structure, make the compressive strength of 25 kn/m squared level.The measured data of a certain type of urban rail vehicle shows that after 300,000 動作キロメートル, the structural deformation of the optimized box cover is controlled within 0.12mm.

(3)Environmental protection against barriers: using micro-arc oxidation surface treatment technology in the aluminum alloy substrate surface to generate 50 microns ceramic layer, salt fog test corrosion time of 3000 時間. Combined with the self-developed nano-composite coating, the surface hardness reaches HV450, and the wear resistance is enhanced three times.

The Test Verification の The Axle Box Cover

The performance verification of rigid standard industry-leading enterprise has set up a complete test system, 含む 80 hours of continuous vibration test (plus or minus 2 mm, amplitude-frequency 5-200 Hz), そして 40 ℃ low-temperature impact test, 120 ℃ heat aging test, and other 18 special detections. The new type of composite material box cover passed the tensile test of ASTM E8 standard, and the elongation at break was stable within the range of 8%-10%, fully meeting the operation requirements of high-speed trains.

The Breakthrough of Technology Innovation of The Axle Box Cover

Direction of the current research focus in intellisense material application, such as embedded optical fiber sensors in the monitoring lid, can collect real-time temperature and strain data. The carbon fiber reinforced composite material box cover equipped on a certain test vehicle model is isotropically reinforced through 3D weaving technology. Its weight is further reduced by 22% compared with aluminum alloy, and the thermal conductivity is optimized by 40%. More advanced metal-based ceramic composites (MMC) have made breakthroughs at the laboratory stage, and their coefficients of thermal expansion can precisely match those of bearing steel materials. From the age iron age to the intelligent material of axle box protection system upgrade trajectory reflects the innovation and development of the rail transportation equipment manufacturing industry. With the in-depth application of technologies such as materials genome engineering and additive manufacturing, future protective devices will continue to evolve towards functional integration, status visualization, and maintenance predictability, building a more solid guarantee foundation for the safe operation of rail transit. このプロセス中に, materials scientists and engineers are still constantly breaking through physical limits and writing a new chapter in the development of rail transit with innovative materials.

のパッケージ The Axle Box Cover

ポリ袋+カートンボックス+木製ケース/パレット, 顧客の要求に応じて

会社概要

洛陽豊洋重工業株式会社, 株式会社. に設立されました 1998, 面積72,600㎡, 以上の 300 従業員, 32 技術者, 含む 5 シニアエンジニア, 11 アシスタントエンジニア, そして 16 技術者. 洛陽工程技術センターとして評価されています, 洛陽テクノロジーR&Dセンター, 国家ハイテク企業と何度も.
弊社の生産能力は 30,000 年間トン. 現在, 私たちは主に鋳鋼を生産しています, 鋳鉄 (ねずみ鉄, ダクタイル鋳鉄, 等), 完成品の加工と部品の組み立て。製品はロシアに輸出されています, 米国, ドイツ, アルゼンチン, 日本, フランス, 南アフリカ,イタリアとその他の国.

よくある質問

Q1: メーカーですか、それとも商社ですか?
あ:私たちはメーカーです. 当社は年に設立されました。 1998, 鋳造業界で約30年の実績, 総面積72,600㎡, 工場建屋面積51,000㎡.
第2四半期. 主な製品は何ですか?
あ: 当社は主に鋼鋳造に注力しています, 鉄鋳物, 完成品加工, および部品組立生産.
Q3: 鋳造部品をどの程度の精度で製造できるか?
あ: 当社はさまざまな鋳造プロセスで鋳造部品を製造する能力を持っています. 生産はISOに厳密に準拠しています 9001, ISO 14001 ISO45001、EN15085, 虹彩.
Q4. サンプル通りに生産してもらえますか?
 はい, あなたのサンプルまたは技術図面から生産できます. サンプルを入手した後、図面を作成することもできます.
Q5: 納品前の品質管理はどのように行っていますか?
あ: 品質検査は鋼鋳造部品の品質を保証する非常に重要な要素です. 私たちはフォローします 3 生産プロセス全体における検査回数. 材料試験レポートを提供します, 寸法試験レポート, 納品前に顧客に報告する機械的特性試験レポート.

何か商品にご興味がございましたら,お気軽にお問い合わせください.
電子メール:[email protected]
携帯:008615515321683