A normalized method for determining the influence on the fixed joints tightness using the technology of the sealing surface job

The existing approaches for determining and evaluating the sealing properties of seals for fixed sealants, as well as methods of leakage monitoring are considered. The description of a normalized method for leak-tightness assessment is given, which allows solving a sufficiently large number of evaluation tasks, for example, technological task: assessment of the influence of the technology sealing surfaced job; design: assessment of the influence of the seals surface layer quality of sealants and geometric parameters of them on sealing capacity (service property).

Application Feasibility Study of High Strength Pipeline Steel to Rig Derrick and Substructure

Derrick and substructure is one of rig’s core equipment components, and it is also the most important weight component of rig. The working environment of derrick and substructure is very serious, whose material should has high strength, excellent plasticity, toughness and weldability property. In this paper, the chemical composition, micro-structure, tensile property, impact property, hardness and weldability of high strength pipeline steel with strength grades of X70 (485MPa)~ X100(690MPa) were systematically analyzed. The analysis and study of the service environment of rig derrick and substructure as well as the technical requirements of the material, showed that the performance of high strength pipeline steel was obviously better than that of the same grade high strength low alloy structural steel used in rig derrick and substructure at present, and it can fully meet the technical requirement of rig derrick and substructure. The application of high strength pipeline steel to rig derrick and substructure will improve the service property, optimize the design , and fully ensure the service safety of rig derrick and substructure.

The Research of Use Database to Build Data String in Robots

The convenient living is created by IT industry, on the other hand industries are from human production transform robotics automation. In the future, robots not only possess manufacturing functions but also have service property. However, if the interaction that robots with service property just only be entered with a single, it has limited functionality. The purpose of this study is investigating the conception of database into robots, load data from database and save processed data into database, it will lessen wrongs and improve speed of response. In this study, will be compared two programs, one is the input and output processing by program, the order one is add database with function of save and load. Result of the comparison apply to processing mode of robot. The experimental results show that use database model can upgrade speed and accuracy that stream transmit, it will provide more convenient automated service contribution.