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Patent Searching and Data


Title:
METHOD FOR MANUFACTURING GLASS BLANK MATERIAL AND DEVICE FOR MANUFACTURING GLASS BLANK MATERIAL
Document Type and Number:
WIPO Patent Application WO/2021/200513
Kind Code:
A1
Abstract:
A glass blank material manufacturing method comprising a rotation step and a slicing step. In the rotation step, a support rod and a workpiece are rotated together. In the slicing step, each of a plurality of wires that are stretched in alignment and have an interval therebetween is pulled at least to one side while abrasive grains are interposed between the wire and the workpiece, the wires are pressed relatively towards the outside peripheral surface of the workpiece, and the workpiece is sliced. The ratio δ/L between the deflection amount δ [μm] of the support rod and the effective length L [mm] of the support rod, in the slicing step, is no more than 1.

Inventors:
ZHANG YU (JP)
Application Number:
PCT/JP2021/012412
Publication Date:
October 07, 2021
Filing Date:
March 24, 2021
Export Citation:
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Assignee:
HOYA CORP (JP)
International Classes:
B24B27/06; B24B41/06; B28D1/08; B28D7/04; G11B5/84
Attorney, Agent or Firm:
GLOBAL IP TOKYO (JP)
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