Abstract:
A plasma torch for cutting use comprises a torch body, a water-cooled electrode arranged in the torch body, a nozzle arranged outside the electrode so as to cover the electrode through a plasma gas passage formed therebetween, a nozzle cap covering the nozzle, a nozzle protection cap having, on its front end side, an opening opposing to an orifice of the nozzle and being disposed outside the nozzle cap through an annular secondary gas passage communicating with the opening, the nozzle protection cap being arranged in the secondary gas passage in an electrically insulated state from the electrode and the nozzle, and an insulator disposed in the secondary gas passage and formed of an electrically insulating material, the insulator having a rectifying passage for rectifying a gas flow passing the secondary gas passage. The nozzle protection cap is composed of a front end portion and a base end portion secured to the torch body and the front end portion and the base end portion are detachably coupled with each other.
Abstract:
An apparatus for processing a vibratory surface in which a processed object is hung on a hook, the hook is supported by the supporting frame having an air spring, the object is immersed in a surface treating liquid. The height of the air spring is automatically adjusted to the most suitable standard height in response to a weight of the processed object and then the surface treatment is carried out while the hook is being vibrated. An apparatus for performing this vibratory surface treatment method is provided.
Abstract:
A method for processing a vibratory surface in which a processed object is hung on a hook, the hook is supported by the supporting frame having an air spring, the object is immersed in a surface treating liquid. The height of the air spring is automatically adjusted to the most suitable standard height in response to a weight of the processed object and then the surface treatment is carried out while the hook is being vibrated. An apparatus for performing this vibratory surface treatment method is provided.