Jig for use in firing of ferrite-made product

Details Jig for use in firing of ferrite-made product Jig for use in firing of ferrite-made product

1998-12-17

2000-12-05

Marcantoni, Paul

Compositions: ceramic

Ceramic compositions

Refractory

501121, C04B 35443

Patent

active

06156687&

ABSTRACT:
There is provided a jig for use in firing of ferrite-made member (e.g. deflection yoke). The jig contains MgO.Al.sub.2 O.sub.3 spinnel as the main component. In the jig, the molar ratio of total MgO and total Al.sub.2 O.sub.3 is 25:75 to 75:25; and RO, which is at least one kind of oxide selected from the group consisting of ZnO, CuO, MnO, NiO, CaO, SrO, BaO, PbO and CdO, is contained in an amount of 0 to 25 mole % per 100 mole % of the sum of total MgO and total Al.sub.2 O.sub.3. This jig is unreactive to a material (e.g. deflection yoke) to be fired and consequently gives rise to no dimensional change of the material to be fired.

REFERENCES:
patent: 3577247 (1971-05-01), McKenna
patent: 4729974 (1988-03-01), Nazirizadeh et al.
patent: 4780434 (1988-10-01), Watanabe et al.
patent: 5135896 (1992-08-01), Vezza
patent: 5283215 (1994-02-01), Hosokawa et al.
patent: 5316571 (1994-05-01), Yamamura et al.
patent: 5614450 (1997-03-01), Britt

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