Dalian CIMC Heavy Chemical Equipment Co.

Dalian, China

Dalian CIMC Heavy Chemical Equipment Co.

Dalian, China

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Cong Y.,Dalian CIMC Heavy Chemical Equipment Co. | Zhao Y.-B.,Petrochemical Projects Company | Wang X.-M.,Dalian University of Technology | Gu H.-L.,Dalian CIMC Heavy Chemical Equipment Co. | And 3 more authors.
Petrochemical Equipment | Year: 2012

Contrasting and analyzing the correlative standard about the provision of the heat treatment of pressure vessel cold forming head at home and abroad. Considering GB 150. 4-2011 Pressure Vessel part 4; Manufacture, Test, Acceptance etc. domestic standard which is constituting now is similar to overseas correlative standard, however the provision in GB/T 25198- 2010 Pressure Vessel Head is defective and it should be modified in order to be consistent with the correlative standard and avoiding unnecessary energy shortage.


Qu P.,Dalian CIMC Heavy Chemical Equipment Co. | Cong Y.,Dalian CIMC Heavy Chemical Equipment Co. | Liang Y.-G.,Dalian CIMC Heavy Chemical Equipment Co. | Zhang J.,Dalian CIMC Heavy Chemical Equipment Co. | Ge S.-T.,Dalian CIMC Heavy Chemical Equipment Co.
Petrochemical Equipment | Year: 2013

Analyzing the reason of exceptional mechanical property after ellipsoidal head hot forming and tempering, the result shows, the chemical composition of raw material is normal, organization is abnormal after hot forming, material is overheat while hot forming, metallographic structure which is formed in massive austenite crystalline grain is granular bainite and massive lath martensite after high temperature chilling, it's transform into massive sorbite after high temperature tempering. Hot forming report is inconsistent with real heating and cooling process. Normalizing again can resume material's mechanical property.


Gu H.-L.,Dalian Cimc Heavy Chemical Equipment Co. | Lu G.-C.,Dalian Cimc Heavy Chemical Equipment Co. | Cong Y.,Dalian Cimc Heavy Chemical Equipment Co. | Yang R.-M.,Dalian Cimc Heavy Chemical Equipment Co. | Wang S.,Dalian Cimc Heavy Chemical Equipment Co.
Petrochemical Equipment | Year: 2013

Structure design and calculation of one large jacketed vessel was introduced, including calculation pressure of shell, heads with brace, joints for nozzle to shell, exempting PWHT, hydrostatic test, and helium leak test etc.

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