The longitudinal impact force of the train during operation is too large. (1) With the increase of the train operating speed, the increase of the tonnage of towing and the increase of the number of cars closed due to brake failure in the train, when the train is started, decelerated and braked during operation , it will have a greater longitudinal impact on the vehicle. (2) Brake cylinder piston stroke does not comply with regulations. During the overhaul, no attention was paid to the adjustment of the A-bar value of the guillotine actuator, which caused the train to be in operation and the brake wave speed was inconsistent, resulting in longitudinal impact on the train. (3) When the train encounters an unexpected situation during normal operation and an emergency braking stop is performed, the instantaneous impulse of the train is caused, in particular, the emergency braking of the train during high-speed operation is more serious. (4) During the shunting operation of the vehicle, the shunting is released, causing heavy hooking due to improper grasping of impact or speed adjustment.
Problems with the shock absorber itself (1) The MX-1 rubber shock absorber has unstable rubber properties, is susceptible to temperature, and has an aging problem. (2) The speed of rubber anti-impact action is rapid, and the separation of the vehicle is easily caused during the shunting work, and when the impact force exceeds the rubber strength, the rubber is damaged. Therefore, such a buffer has become unusable with greater impact force and higher shunting impact speed.
(3) The structure of the box is irrational and cracks are easily generated. The box adopts a large open structure at the bottom. When the rubber sheet is damaged and needs to be replaced, the inspection and repair operations are inconvenient. In particular, when the small mouth of the box wears out, it cannot be repaired, causing the wedge to stick out. When the vehicle is impacted, the wedge severely presses the small mouth of the box to make it crack.
The coupler damper device now used has the same structure and connection as the previously used coupler shock absorber, and the longitudinal clearance between the coupler and the buffer device is too large. When the train brakes, accelerates, decelerates or the traction of the locomotive is not uniform, Vertical train impact.
Buffer capacity is small. In terms of truck bumper performance requirements, it depends to a large extent on the speed at which the trucks are connected. China's 5th Railway Technical Management Regulations 6 stipulates that the speed at which the wagons of a marshalling yard are allowed to be connected shall not exceed 5km/h. If the capacity of the buffer is too small (35kJ), the buffer will be crushed to death below the allowable linking speed. As a result, a rigid impact occurs, and the impact force and impact speed increase rapidly, eventually leading to premature fatigue failure of the vehicle or damage to the loaded cargo.
In the case of various impacts encountered during train operation, the reasons for the impact force caused by the shearing and breaking of the heart plate bolts are: (1) When the train passes through the turnouts and the curved road sections, the lateral swing of the vehicle is increased, and the small curve radius is generated. The centrifugal force and the high lateral pressure of the outer rail increase. (2) When the vehicle is operating in an automated hump, the speed of disassembling the vehicle is too fast, and the moment inertia of brake shoe braking occurs. (3) In the shunting operation, the linking speed is not well mastered, and the shock absorbers are all crushed to cause a rigid impact.
The existence of the above reasons reflects the fact that the quality consciousness is weak and cannot be overhauled according to the standard, resulting in a weak buffer performance. In the high-speed train operation, these problems may not directly affect traffic safety, but once coupled with other bad conditions, it is easy to cause the vehicle to derail or subvert.
Precautions and Suggestions for Improvement MX-1 Rubber Buffer (1) Strengthen staff's quality awareness, strictly follow process inspection, strengthen the selection of wedges and briquettes, control the amount of sticking of wedges, and ensure that the briquettes and wedges Assembly quality. (2) Since the MX-1 type rubber buffer has not been adapted to the requirements of high speed and heavy load, with the increase of the construction speed of the truck, the research and development of the large capacity new buffer should be accelerated. (3) The seizure should actively handle the brake failure vehicles in the train to reduce the longitudinal impact of the train and improve the operating conditions. (4) The inspection shall strictly control the A bar and A push value of the brake adjuster to ensure that the stroke length of the brake cylinder piston complies with the regulations.
Approvals: Magnetic proof performance: once 7000 gauss super magnetic field is applied to cabinet wall, the inside magnetic strength is less than 4 gauss. It was tested and approved by Jiangsu provincial testing facility.
Apllication: Government, Finance, Securities, Insurance, Army, Court, Procuratorate, Tax etc.
Storage material: Important magnetic medium archived such as magnetic disk, magnetic tape, micro disk, film, recorded audio visual data as well as U disk, VCD/DVD, mobile disk etc.
Huanawell is an emerging name and leading global provider of products, services, and solutions for lifeplace, – whether it is an office, home, school, factory, or public facility, even a car.
Wuxi Huanawell Import & Export Co., Ltd. is such an entity, establishing and figuring out resources and catalysts to help customers work better, live better with peace of mind. We are striving creating values needed by the clients in both industrial & civil sectors, which help them be more productive, including with the latest technology, core office supplies, facilities products, furniture, and all possible security solutions. The company also provides a variety of services including sourcing & outsourcing in relevant industrial and civil areas.
The company serves consumers and businesses in over 23 countries with more than 35 local distrbutors or dealers, and a dedicated business-to-business sales organization – all delivered through a regionally connected network operations, joint ventures, franchisees, licensees and alliance partners. The company operates under several banner brands including ZOYET, Huanawell, Golden Knight etc. Huanawell Imp.& Exp. features products from safety storage cabinet, safes, fireproof boxes, safety cans & containers, SPCCs (spill prevention, control & countermeasure), PPEs(personal Protection Equipments), Monitor Cameras...
The Huanawell`s overall focus is to meet the rising demand for increased security with a product-driven offering centered on the customer.
We achieve this through our primary product areas, the traditional segments of industrial storage, maintenance, repair,operation -MRO, and security solutions with safes, fire filing cabinets, access control etc.
Huanawell's strong growth comes from: long-term structural development in mature markets in China, South America, Africa and Asia Pacific; increasing demand in emerging markets in Asia, eastern Europe, Africa and South America drives us in this way aggressively; and successes in fast-growing product segments.
The strategic action plans have been divided into three focus areas: market presence, product innovation and cost-efficiency.
WUXI HUANAWELL METAL MANUFACTURING CO., LTD., was incorporated in 2013, specialized in the production of Fire Resistant Cabinets, Fire proof & Humid proof Cabinets, Fire Resistant Safes, Magnetic proof cabinets etc., as one of the professional manufacturers exclusively for sophisticated top-class Fire Resistant Filing Cabinets. ZOYET products conform to global relevant industrial standards as UL, CE, SP, SINTEF, GOST, KS etc, type tested and approved by China national level testing Lab. – Jiangsu Institute of Metrology (JSMI), meanwhile tested by globally unique 7,000 gauss magnetic proof type test.
Since its inception, Huanawell Metal Mfg. persists in constant innovation, the pursuit of excellence, established the international industry and commercial purpose" cabinets in our R & D center", relying on progress of science and technology, has made more than 200 patents. We have two large production bases, have the international first-class highly automated production equipment, testing equipment and standardization of large workshop, and improve the living and entertainment facilities.
Ready to respond to your request correctly and in time
Quick response, ensured quality, as short leadtime as possible, smooth delivery is what we are striving for.
Such services are supported by our serial resources and expertise in the industries and solutions, consisting of Manufacturing, OEM/ODM, Design & Development, Agency Service, Sourcing & Outsourcing, Procurement etc., which are across in construction, chemical, petroleum, electrical & electronic, medical, pharceutical, agricultural, power generation, real estate, government division, civil & private sectors.
Manufacturing
Manufacturing is one of our key elements in the business. Most of out manufacturing facilities and process are equipped with modern advanced machinery, techniques & technology, with ISO approved Quality Management System latest approved.
Based our regular lines of products, private label products and designs are possible to be considered for authorized production, based on mutual negotiation.
OEM/ODM
OEM - original equipment manufacturer, denote us the position for manufacturing the client's specific need of product, as long as such product could fall into regular lines of manufacturing process & resources. And OEM cooperation is based on mutual negotiation with Confidential/Non-disclosure Agreement.
ODM - original design manuafacturer, allow us the mission to customize solution client outlined. It has more complicated service chart apart from similar process as that OEM required, thus requiring better mutual understanding and cooperation.
Agency Service
We also represent some of famous brands or manufacturers in the industries, for the marketing and sales activities in the global market. Such agency services enable us not only to represent us but to penetrate the markets where our principals do not have edge to attain to separately.
Sourcing & Outsourcing
Sourcing & Outsourcing are the two sides of one hand. Sourcing help us a lot in the regula business that help meet the solution requirement, fixing our extra or supplementary demand of materials, products etc. Meanwhile, outsourcing would definitely maintain our clients' various needs satisfied, which extend our vision in the industries.
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Keeping promise is the biggest hope that we could ever rely on!
Huanawell enjoys good reputation and high client credit due to that we have established our quality based on International Standards. Not only our production facilities haven been approved by local authority, but our quality management system, quality control have been tested in related third party laboratories, such as SGS, JIS, BV etc.
Our ClientsThrough years of services and partnership in marketing & sales operation, we have established solid customer relationship within multitude of industries, and our products are used by below clients (list is only some of them). .
Huanawell™ ZOYET® Industrial Products cover a ideal range of applicable lines that could be used in Flammable, Corrosive Secure Storage, Hazardous Material Keeping, Circulation, Spill Prevention, Control & Counter Measure (SPCC), On-spot Working Safety and Efficiency Improvement, Personal Safety Protection etc. processes and occasions.
The products conform to UL, EN, OSHA, NFPA, EPC, NPDES standards relevant to various industries.
Magnetic Proof Cabinets,Ce Jis 7000 Gauss Super Magnetic Field Approvals,For Long Term Storage Of Important Magentic Medium,Premium Galvanized Steel Sheet From Bao Steel
Wuxi Huanawell Metal Manufacturing Co., Ltd. , https://www.wxzoyetsafety.com