Title:
A manufacturing method of the magnetic board for encoders
Document Type and Number:
Japanese Patent JP5969516
Kind Code:
B2
Abstract:
The present invention relates to a method for producing a magnetic substrate for an encoder scale. The method comprising the step of mechanically working the substrate, wherein the substrate is cooled prior to the mechanical working step. In one embodiment, a stainless steel substrate is used. The stainless steel may comprise an austenite (non-magnetic) phase and a martensite (magnetic) phase. Mechanically working and cooling in this manner increases the amount of magnetic (martensite) phase material that is formed, thereby improving the magnetic contrast when non-magnetic (austenite) marking are subsequently formed on the substrate by laser marking.
Inventors:
Peter Koguji
Vosite Les Covisek
Vosite Les Covisek
Application Number:
JP2013555930A
Publication Date:
August 17, 2016
Filing Date:
March 05, 2012
Export Citation:
Assignee:
RLS Merylna Tenica D.O.O.O.
International Classes:
G01D5/245; C21D1/06; C21D1/18; C21D7/02; C21D8/12; H01F1/14
Domestic Patent References:
| JP2008506905A | ||||
| JP2000297324A | ||||
| JP10259422A | ||||
| JP5248806A | ||||
| JP543991A | ||||
| JP2161616A | ||||
| JP288715A | ||||
| JP1201425A | ||||
| JP6283620A |
Attorney, Agent or Firm:
Patent Business Corporation Tani/Abe Patent Office
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