MAGNETIC ENCODER AND METHOD FOR MANUFACTURING THE SAME

PROBLEM TO BE SOLVED: To provide a magnetic encoder which uses core metal made from a cold rolled steel sheet subjected to hot-dip galvanizing, and is excellent in the stability of adhesive strength between a plated layer and an adhesives layer, and a method of efficiently manufacturing the magnetic...

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Bibliographische Detailangaben
1. Verfasser:	ITO SADAHIRO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS BEARINGS BLASTING CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIGHTING MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR MECHANICAL ENGINEERING METALLURGY PERFORMING OPERATIONS PHYSICS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS SPRAYING OR ATOMISING IN GENERAL SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TARIFF METERING APPARATUS TESTING THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a magnetic encoder which uses core metal made from a cold rolled steel sheet subjected to hot-dip galvanizing, and is excellent in the stability of adhesive strength between a plated layer and an adhesives layer, and a method of efficiently manufacturing the magnetic encoder.SOLUTION: A magnetic encoder 1 includes an approximately annular plastic magnet part 3 having a core metal 2 made from a cold rolled steel sheet and magnetized in multiple poles in the circumferential direction. A plated layer including zinc aluminum magnesium alloy on the surface of the core metal 2, a phosphate film layer on the surface of the plated layer, an adhesive layer on the phosphate film layer and a plastic magnet layer on the adhesive layer are sequentially laminated.SELECTED DRAWING: Figure 1 【課題】溶融亜鉛メッキが施された冷間圧延鋼板製を芯金とする磁気エンコーダにおいて、メッキ層と接着剤層との間の接着強度の安定性に優れた磁気エンコーダ、および磁気エンコーダを効率よく製造する方法を提供すること。【解決手段】芯金２が冷間圧延鋼板製であり、円周方向に多極に着磁された略円環状のプラスチック磁石部３を備えた磁気エンコーダ１であって、芯金２の表面に亜鉛アルミニウムマグネシウム合金を含むメッキ層、該メッキ層の表面にリン酸塩皮膜層、該リン酸塩皮膜層の上に接着剤層、および該接着剤層の上にプラスチック磁石層が順次積層されていることを特徴とする磁気エンコーダ１。【選択図】図１