|
CryoJet / IceJet is a derivative of the machining process called abrasive waterjet (AWJ) machining. CryoJet/IceJet technology uses ice particles made of water coming from a running water or freshwater system to cut material. While the ice particles are cutting material, they melt and go into the water tank of the machine. The pressurized water acting as a cutting jet can be re-used, with adequate filtering, creating a closed water circuit. However, the majority of users do not re-use the water. If more widely used, CryoJet may produce a drastic reduction in the amount of abrasive waste spill currently produced during the water jet cutting process, as no mineral abrasive is used by this technology. ==Ice Generation== There are two different approaches to ice particles generation. *The ice particles can be prepared beforehand using an ice particle generator, stored in a reservoir and then fed to the conventional entrainment based jetting head. *The need for ice particle generators, cooled storing facilities and conveying equipment can be eliminated by forming the ice particles *in situ * during the water jet formation. The ice jet in this case is generated either by sub-cooling of pressurized water and controlled phase transformation during pressure relaxation in the jet nozzle, or by phase transformation by entrainment of cold liquid gases such as liquid nitrogen (N2)(see: Phase diagram of water). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「CryoJet」の詳細全文を読む スポンサード リンク
|