CUTTING METHOD AND APPARATUS USING A JET OF CRYOGENIC FLUID

摘要

A cutting apparatus using a jet of cryogenic fluid and comprising a low pressure cryogenic fluid storage tank, a high pressure compressor (12), and a discharge nozzle (19) connected by lagged ducts. The operation of a heat exchanger (8) arranged between the storage tank (1) and the discharge nozzle (19) for cooling the discharged fluid to a constant set temperature is controlled by the output from a temperature sensor (31) at the inlet of the high pressure compressor (12). A cutting method carried out using said apparatus is also disclosed.