China Railway Engineering Machinery Research Institute-Rubber Joint

【China Railway Engineering Machinery Research Institute】Rubber joint contract

 

The official website of Shanghai Songjiang Shock Absorber Group Co., Ltd. introduces to you: [China Railway Engineering Machinery Research Institute] rubber joint contract information. Songjiang Group provides oil-resistant rubber joint products for many engineering projects, which mainly play the role of shock absorption and noise reduction , The following is a detailed introduction of the rubber joint contract of [China Railway Engineering Machinery Research Institute].

1. Introduction of China Railway Engineering Machinery Research Institute:

China Railway Science and Industry Group Co., Ltd. was initiated by the world’s top 500 companies, China Railway Corporation Limited, and was established by the reorganization of three member companies within the group. It is the result of China Railway Corporation’s integration and internal industrial production resources. The group integrates scientific research and design, industrial manufacturing, engineering construction and installation, and large-scale logistics in a comprehensive production and scientific research service. It is a new type of industrial group located in Wuhan, a thoroughfare of nine provinces. The company’s business mainly involves railways, highways, bridges, tunnels, subways, R&D, manufacturing, construction and testing of construction machinery and steel structures for buildings and ports. The company has a registered capital of 366,553 million yuan. Currently, it has two branches: “China Railway Engineering Machinery Research and Design Institute” and “China Railway Science and Industry Machinery Co., Ltd.” and “China Railway Nine Bridge Co., Ltd.”, “China Railway Heavy Industry Co., Ltd.” “Basic Engineering Co., Ltd.”, “Jiujiang China Railway Science and Industry Large Parts Logistics Co., Ltd.”, “Jiujiang China Railway Inspection Technology Co., Ltd.” five subsidiaries. The company’s total assets are over 1.5 billion yuan, and it has strong strength. It has 1,863 sets (sets) of various steel structure and engineering machinery manufacturing, construction equipment and * 5000 tons*-800T heavy lifting docks, and has advanced computer assistance Design, construction and management of equipment systems and sophisticated testing and testing centers. The company’s headquarters and member companies have a total of 2,347 employees, including: 624 various technical personnel, 27 experts who enjoy provincial and ministerial * allowances, 21 professors* senior engineers, 71 high* professional titles, 215 medium* professional titles, technicians 84 people.

 

 

2. [China Railway Engineering Machinery Research Institute] Rubber joint contract introduction:

 

The following is a scanned copy of the authenticity contract, please do not modify, please do not reprint, this contract is only as a proof of goods, thank you for your cooperation.

3. [China Railway Engineering Machinery Research Institute] Rubber joint introduction:

It has good elasticity, and has good adaptability to compression, stretching, twisting, vertical displacement of deflection, etc., and prevents damage to the pipeline system due to thermal expansion and contraction deformation or uneven foundation settlement.
Multi-layer sphere structure. It is not suitable for bearing internal pressure, has strong blast resistance, good impact resistance, and does not deform under external pressure.
Cover: Nitrile rubber. The English code of nitrile rubber is NBR, the rubber material is resistant to oil, high temperature and aging, tensile strength ≥13MPa, elongation at break ≥500%, tensile deformation at break ≤30%, brittleness, temperature resistance ≤-30℃, adhesion Strength ≥2.0DN/m. Since the outer rubber layer of the rubber joint is exposed to the air, it is susceptible to the influence and manipulation of external factors. This requires the outer rubber layer of the joint to have oil resistance, heat resistance, ozone resistance, etc. In response to these situations, we have used nitrile rubber. Through a reasonable formula, nitrile rubber is mainly suitable for: hydraulic oil and other oils, as well as several types that cannot be used with special oils (aviation kerosene, gasoline, diesel), nitrile rubber. The high temperature can reach 140℃, and it is brittle. The temperature is -15℃~55℃.

 

4. [China Railway Engineering Machinery Research Institute] Photographs of rubber joints:

Note:
The oil-resistant rubber joint valve body of our company is engraved with the word Shanghai Songxia. Songxia is a high-end brand under Shanghai Songjiang Shock Absorber Group Co., Ltd. All the special rubber joint valve bodies of our company are engraved with the word Shanghai Songxia (25kg, Oil resistance, acid and alkali resistance, high temperature resistance, abrasion resistance, double ball, reducing diameter), if the product is not engraved with the word Shanghai Songxia, it is not a special product, and the valve body is engraved with the word Shanghai Songjiang Shock Absorber Group Co., Ltd. The products are 16kg over-aquatic products, not special products.