Dongfeng Auto Parts Investment 1.05 billion yuan to build industrial park

On August 6, 2011, Dongfeng Auto Parts Group Co., Ltd. signed an agreement with Caidian District Government of Wuhan City. The company invested 1.05 billion yuan to build Wuhan Industrial Park in Caidian District.

Dongfeng Auto Parts Group Co., Ltd. plans to build industrial parks in Shiyan, Xiangyang and Wuhan in Hubei Province, striving to exceed 13 billion yuan in revenue in 2015. According to reports, Wuhan Industrial Park will focus on the development of passenger car parts, automotive electronics business and new energy auto parts. It is expected that it will be put into production after two years, with an annual sales income of up to 2 billion yuan.

Tongue And Groove Face Flanges

The Tongue and Groove faces of this flanges must be matched. One flange face has a raised ring (Tongue) machined onto the flange face while the mating flange has a matching depression (Groove) machined into it's face.

Tongue-and-groove facings are standardized in both large and small types. They differ from male-and-female in that the inside diameters of the tongue-and-groove do not extend into the flange base, thus retaining the gasket on its inner and outer diameter. These are commonly found on pump covers and Valve Bonnets.

Tongue-and-groove joints also have an advantage in that they are self-aligning and act as a reservoir for the adhesive. The scarf joint keeps the axis of loading in line with the joint and does not require a major machining operation.

General flange faces such as the RTJ, TandG and the FandM shall never be bolted together. The reason for this is that the contact surfaces do not match and there is no gasket that has one type on one side and another type on the other side.

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