Patent ID: 8926858
Filing Date: 2015-01-06
Classification: B23Q,C09K

Abstract:
1. A method of forming a composite fluid for treating a surface during a machining process, the method comprising: providing a first stream containing carbon dioxide; providing a stepped capillary condenser for at least partially solidifying the carbon dioxide, wherein the stepped capillary condenser comprises a first flexible capillary segment connected to a second flexible capillary segment, the second capillary segment having a greater inner diameter than the first capillary segment; at least partially solidifying the carbon dioxide contained in the first stream, wherein the first stream enters the first capillary segment and progresses toward the second segment, whereupon entering the second segment, at least a portion of the carbon dioxide condenses into solid particles; providing a second stream containing inert gas at a temperature between 305 K to about 477 K; and combining the first stream and the second stream to form the composite fluid.