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Wednesday, January 18, 2012

Mating connector | Focus on health

fitness> by David Feltkamp

Written by

Qiaorui

In the manufacture of semiconductor devices from silicon wafers, various processes are carried out before cutting the wafer into individual chips for packaging. At certain stages in the manufacture of certain semiconductor devices, manufacturing processes are used wet as wet etching. The chemicals used in these wet processes such as acids or alkalis reside in quartz vessels that are resistant to corrosion and high heat. Quartz tanks are also used as part of a cleaning silicon wafers, or in a distribution system of a chemical production line of semiconductors.

A tank typically includes a quartz crystal input / output pipe is in communication with a tube made of synthetic resin used to carry chemicals into or out of the quartz cell. Quartz tubes are used for the distribution of chemical products since the pipes have good chemical resistance properties, pressure tightness, heat resistance, etc.. Various fittings and pipe joints have been used for connecting tubes with quartz tubes of synthetic resin. For example, U. S. Pat. 5,516,159 to Hirakawa et al. a hard-seal quartz tube less, including a joint body having a pipe portion received in a quartz tube to be inserted, a ring-like sealing element held in the pipe portion of receipt of the joint body and a deformable locking ring. A nut mounted outside the quartz tube and connected to the joint body is also provided with a pressing piece arranged in the nut. A problem with pipe fittings conventional quartz is that they are difficult to handle during routine maintenance procedures, both during assembly and disassembly of the fittings. Conventional quartz pipe fittings are difficult to assemble and disassemble especially in confined spaces such as areas where the reservoirs below quartz quartz pipe fittings are located and which are difficult for maintenance personnel to access. These areas generally have a hot acidic environment, adding to the difficult situation in which maintenance personnel implement maintenance procedures with conventional fittings are in place. Discussions on classical connections are generally very thin, making it difficult to make connections between the hose from the tank quartz tubes and others. In addition, pipe fittings conventional quartz often leak and break, adding the time required to perform the procedures for repair and maintenance. Although there are several types of quick connect fittings available, such as pneumatic quick connect fittings and several types of water connections, none of these are suitable for application to a reservoir of quartz and none can be placed between the existing fittings in a piping system without changing connections as you will. The present invention is directed to a ramp lock quick connect mounting device allowing fluid communication between the tubular elements as a pipe and a hose. The quick connect coupling of the invention is adapted to be placed between the fittings of conventional piping systems commonly used in industry such as pipes and tubes of quartz synthetic resin used in chemical processing systems the manufacture of semiconductor devices. The device of the invention provides a connection / quick disconnect coupling for conventional fittings are otherwise difficult to assemble and disassemble. The device of the invention thus converts the connection of a connector in a classic connection / quick disconnect coupling. In an embodiment of the invention, the Quick Connect includes a coupling member having a first pipe section receiving a connector adapt ed to receive a conventional pipe, and a ramp support section with a pair of external spiral ramps formed around it. The Quick Connect thus comprises a second coupling that sealingly engages the coupling member first. A portion of an extension of the second coupling member is adapted to receive a conventional fitting on a tube. A locking collar is engaged with the mobile second coupling and a pair of locking elements arranged on an inner surface of the ring. The sliding lock members engage with spiral ramps when the collar is rotated around ramp support section of the coupling first. Locking members may be a pair of buttons that provide a coupling mechanism ramp button in the Quick Connect. In another embodiment, a pair of internal spiral ramp can be formed on the inner surface of the ring which provide a coupling mechanism ramp to ramp. When the device quick connect mounting concerns invention is used in piping systems for the transportation of harsh chemicals, it is best t o build the components of the assembly of materials that are chemically resistant to acids , strong bases, or similar. Suitable materials with chemical resistance that can be used to manufacture the components of the assembly includes synthetic resins such as fluorocarbon or fluoropolymer materials. For example, members of the first and second coupling described above, which may be exposed to corrosive chemicals in use, can be formed from materials resistant to fluorochemicals. another embodiment of the quick connect coupling of the invention include components similar to those described above, with the addition of other components to the Quick Connect fittings compatible with some conventional. In one embodiment, a member of the tube is placed in the pipe section for receiving the coupling member first, with members able to extend the pipe in a pipe with a conventional connector. In another embodiment, the pipe receiving section of the coupling member includes a first colla r portion disposed in a threaded cavity which is compatible with a conventional pipe fitting different. The quick disconnect coupling device of the invention has the advantage of being placed between existing conventional fittings used in plumbing fixtures, eliminating the need for connector or rehabilitation of conventional fittings in order to install the Quick Connect of the invention.

In addition, the quick-connect fitting allows easy maintenance of piping systems, as no tools are required to connect and disconnect the Quick Connect of the invention.

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