POLISHING METHOD FOR CONCAVE SURFACE IN HARD OBJECT TO BE POLISHED

Title:

POLISHING METHOD FOR CONCAVE SURFACE IN HARD OBJECT TO BE POLISHED

Document Type and Number:

WIPO Patent Application WO/2016/129700

Kind Code:

A1

Abstract:

Provided is a laboratory tool having a cylindrical-bottomed body and a concave portion, the laboratory tool having abrasion resistance and heat resistance sufficient for pulverization, mixing, or melting of a sample and formed by using a material having a very small possibility of depletion and the inclusion of impurities. The laboratory tool has a cylindrical-bottomed body and a concave portion, and is formed by using a material having a Vickers hardness of at least 2000 HV and the concave portion consists of a curved surface or a curved surface and a flat surface, wherein the concave portion is polished so a surface roughness (Ra) thereof does not exceed 0.004.

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Inventors:

KIDO HIROAKI (JP)
KIDO KAZUMASA (JP)

Application Number:

PCT/JP2016/054206

Publication Date:

August 18, 2016

Filing Date:

February 14, 2016

Export Citation:

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Assignee:

KIDO HIROAKI (JP)

International Classes:

B24B31/00; B02C19/08; B24B31/10

Foreign References:

JPH02107359A	1990-04-19
JP2004294125A	2004-10-21
JPH0597514A	1993-04-20
GB1090888A	1967-11-15
JP2000071164A	2000-03-07
JP2006169085A	2006-06-29
JP2001328831A	2001-11-27
JP2014031291A	2014-02-20
JPS517559A	1976-01-21

Attorney, Agent or Firm:

Kuronuma Yoshiyuki (JP)
Kuronuma Yoshiyuki (JP)

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