The overall design of the system The three-cone bit parametric drawing system adopts the functional modular programming method, which divides the whole system into four functional modules: user interface management module, drill tooth surface structure design module, database management module, parameterized drawing module. . The user interface is designed using VBA secondary development tools embedded in AutoCAD. The user inputs the relevant parameters of the tri-cone bit design through the user interface module to realize the communication of human-machine information.
The main function of the bit tooth surface structure design module is to complete the complex tri-cone bit design data calculation according to the tri-cone bit design theory. The database management module is a database created by Access 2003 in the form of a data table.
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Gate Valves are called "full-flow" valves; there's a direct unobstructed path for flow right through the middle of the valve. A wedge-shaped brass gate is lowered into a machined slot to close the valve. They should either be completely open or completely closed. Water flowing through a partially open gate valve wears away the metal and causes the valve to fail over time.
Brass Gate Valve, Flanged Gate Valve, High Pressure Gate Valves, Water Gate Valves
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