Title:
インゴット切削方法
Document Type and Number:
Japanese Patent JP5486392
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an ingot cutting method which can improve regeneration efficiency of a cutting oil composition, with a simple operation, by separating cutting powder from waste oil solution which contains used cutting oil composition and the cut powder with high separation efficiency, and recovering the oily component at high yield.SOLUTION: In the ingot cutting method, an ingot is cut by a fixed abrasive wire saw using the cutting oil composition for the fixed abrasive wire saw. The cutting oil composition for the fixed abrasive wire saw contains 30-100 wt.% of a specific polyether compound. The ingot cutting method includes a cutting step of cutting the ingot, a powder removal step of removing at least the cut powder from the waste oil solution, and a step of reusing the residual liquid obtained by removing at least the cut powder from the waste oil solution for cutting the ingot. The powder removal step includes a step of separating the waste oil solution into an upper layer having the polyether compound as a main component, an intermediate layer having water as the main component, and a deposition layer (a lower layer) of the cut powder.
Inventors:
Yasuhiro Doi
Eiji Kashihara
Eiji Kashihara
Application Number:
JP2010105580A
Publication Date:
May 07, 2014
Filing Date:
April 30, 2010
Export Citation:
Assignee:
Kao Corporation
International Classes:
B24B27/06; B24B57/02; B28D5/04; B28D7/02; C10M105/18; C10M107/34; C10M173/02; C10M175/04; H01L21/304; C10N20/00; C10N40/22
Domestic Patent References:
| JP11323376A | ||||
| JP2006111728A | ||||
| JP2001072991A | ||||
| JP2010029998A |
Attorney, Agent or Firm:
Ikeuchi, Sato & Partners