JPH0471873B2 - - Google Patents

Info

Publication number

JPH0471873B2

JPH0471873B2 JP16052787A JP16052787A JPH0471873B2 JP H0471873 B2 JPH0471873 B2 JP H0471873B2 JP 16052787 A JP16052787 A JP 16052787A JP 16052787 A JP16052787 A JP 16052787A JP H0471873 B2 JPH0471873 B2 JP H0471873B2

Authority

JP

Japan

Prior art keywords

ferrite

composite

molded body

molded

firing

Prior art date

1987-06-27

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Links

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• 229910000859 α-Fe Inorganic materials 0.000 claims description 176
• 239000002131 composite material Substances 0.000 claims description 95
• 239000013078 crystal Substances 0.000 claims description 69
• 239000000843 powder Substances 0.000 claims description 54
• 238000000034 method Methods 0.000 claims description 46
• 238000010304 firing Methods 0.000 claims description 37
• 239000000463 material Substances 0.000 claims description 37
• 230000035699 permeability Effects 0.000 claims description 23
• 238000010438 heat treatment Methods 0.000 claims description 17
• 238000004519 manufacturing process Methods 0.000 claims description 16
• 238000002425 crystallisation Methods 0.000 claims description 13
• 230000008025 crystallization Effects 0.000 claims description 12
• 239000011162 core material Substances 0.000 description 31
• 239000010410 layer Substances 0.000 description 18
• 239000000203 mixture Substances 0.000 description 15
• 230000035882 stress Effects 0.000 description 15
• UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 13
• XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 12
• 238000000465 moulding Methods 0.000 description 11
• 239000002994 raw material Substances 0.000 description 6
• 239000011787 zinc oxide Substances 0.000 description 6
• QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
• 239000001301 oxygen Substances 0.000 description 5
• 229910052760 oxygen Inorganic materials 0.000 description 5
• 238000005245 sintering Methods 0.000 description 5
• 239000002002 slurry Substances 0.000 description 5
• NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
• 239000006061 abrasive grain Substances 0.000 description 4
• 238000005266 casting Methods 0.000 description 4
• 230000007423 decrease Effects 0.000 description 4
• 239000010432 diamond Substances 0.000 description 4
• 229910003460 diamond Inorganic materials 0.000 description 4
• 235000006748 manganese carbonate Nutrition 0.000 description 4
• 239000011656 manganese carbonate Substances 0.000 description 4
• 229940093474 manganese carbonate Drugs 0.000 description 4
• 229910000016 manganese(II) carbonate Inorganic materials 0.000 description 4
• XMWCXZJXESXBBY-UHFFFAOYSA-L manganese(ii) carbonate Chemical compound [Mn+2].[O-]C([O-])=O XMWCXZJXESXBBY-UHFFFAOYSA-L 0.000 description 4
• 239000012299 nitrogen atmosphere Substances 0.000 description 4
• 239000011029 spinel Substances 0.000 description 4
• 229910052596 spinel Inorganic materials 0.000 description 4
• 239000012298 atmosphere Substances 0.000 description 3
• 238000007796 conventional method Methods 0.000 description 3
• 238000001035 drying Methods 0.000 description 3
• XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
• 239000002245 particle Substances 0.000 description 3
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
• RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
• 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
• 229910052802 copper Inorganic materials 0.000 description 2
• 239000010949 copper Substances 0.000 description 2
• 230000000694 effects Effects 0.000 description 2
• AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
• 238000002156 mixing Methods 0.000 description 2
• 239000002344 surface layer Substances 0.000 description 2
• 239000011701 zinc Substances 0.000 description 2
• 229910018605 Ni—Zn Inorganic materials 0.000 description 1
• 239000000654 additive Substances 0.000 description 1
• 238000001816 cooling Methods 0.000 description 1
• 230000001747 exhibiting effect Effects 0.000 description 1
• 230000006355 external stress Effects 0.000 description 1
• 239000002223 garnet Substances 0.000 description 1
• 238000000227 grinding Methods 0.000 description 1
• 238000001513 hot isostatic pressing Methods 0.000 description 1
• 238000007731 hot pressing Methods 0.000 description 1
• 230000002706 hydrostatic effect Effects 0.000 description 1
• 229910052742 iron Inorganic materials 0.000 description 1
• 238000000462 isostatic pressing Methods 0.000 description 1
• 239000000696 magnetic material Substances 0.000 description 1
• 238000005259 measurement Methods 0.000 description 1
• NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
• 238000003825 pressing Methods 0.000 description 1
• 238000010298 pulverizing process Methods 0.000 description 1
• 239000010802 sludge Substances 0.000 description 1
• 239000007858 starting material Substances 0.000 description 1
• 238000004381 surface treatment Methods 0.000 description 1