액슬 베어링 보호용 액슬 박스 커버

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 ℃ 에 200 ℃ temperature changes, fluorine rubber provides chemical protection layer, the middle lining PTFE reduces the friction coefficient. Tested in accordance with the EN 13649 기준, this structure can achieve a particle barrier efficiency of 99.97%.

(2)Mechanical bearing network: 토폴로지 최적화 설계를 통해, 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 kilometers of operation, 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 시간. Combined with the self-developed nano-composite coating, the surface hardness reaches HV450, and the wear resistance is enhanced three times.

The Test Verification ~의 The Axle Box Cover

The performance verification of rigid standard industry-leading enterprise has set up a complete test system, 포함 80 hours of continuous vibration test (plus or minus 2 mm, amplitude-frequency 5-200 헤르츠), 그리고 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, 상태 시각화, and maintenance predictability, building a more solid guarantee foundation for the safe operation of rail transit. During this process, 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.

패키지 The Axle Box Cover

Polybag+Carton box+Wood 케이스/팔레트, 고객의 요청에 따라

회사 프로필

뤄양포뇨중공업(Luoyang Fonyo Heavy Industries), 주식회사. 에 설립되었습니다 1998, 면적 72,600㎡, 이상으로 300 직원, 32 기술자, 포함 5 수석 엔지니어, 11 보조 엔지니어, 그리고 16 기술자. 낙양 공정 기술 센터로 평가되었습니다., 낙양기술R&D센터, 여러 번 국가 하이테크 기업.
우리의 생산 능력은 30,000 연간 톤. 현재, 우리는 주로 주강을 생산하고 있습니다, 주철 (회색 철, 연성이 있는 철, 등.), 완제품 가공 및 부품 조립.제품은 러시아로 수출되었습니다., 미국, 독일, 아르헨티나, 일본, 프랑스, 남아프리카,이탈리아 및 기타 국가.

자주 묻는 질문

1분기: 당신은 제조업체입니까, 아니면 무역회사입니까??
에이:우리는 제조업체입니다. 우리 회사는 에 설립되었습니다. 1998, 주조 업계에서 거의 30년 동안, 총면적 72,600㎡, 공장건축면적 51,000㎡.
2분기. 주요 제품은 무엇입니까?
에이: 우리는 주로 철강 주조에 중점을 두고 있습니다., 철 주조, 완제품 가공, 및 부품 조립 생산.
3분기: 주조 부품을 얼마나 정밀하게 생산할 수 있습니까??
에이: 우리는 다양한 주조 공정으로 주조 부품을 생산할 수 있는 능력을 갖추고 있습니다.. 생산은 ISO를 엄격히 준수합니다. 9001, ISO 14001 및 ISO45001,EN15085, 아이리스.
4분기. 샘플에 따라 생산할 수 있습니까??
 예, 우리는 귀하의 샘플이나 기술 도면으로 생산할 수 있습니다. 샘플을 받은 후에도 도면을 제작할 수 있습니다..
Q5: 배송 전 품질 관리는 어떻게 합니까??
에이: 품질 검사는 철강 주조 부품의 품질을 보장하는 매우 중요한 요소입니다.. 우리는 따른다 3 전체 생산 과정 중 검사 횟수. 그리고 우리는 재료 테스트 보고서를 제공할 것입니다, 치수 테스트 보고서, 납품 전에 고객에게 기계적 특성 테스트 보고서.

어떤 제품에 관심이 있으신가요?,저희에게 연락하게 자유롭게 느끼십시오.
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