JPH058384Y2 - - Google Patents

Info

Publication number

JPH058384Y2

JPH058384Y2 JP1987038908U JP3890887U JPH058384Y2 JP H058384 Y2 JPH058384 Y2 JP H058384Y2 JP 1987038908 U JP1987038908 U JP 1987038908U JP 3890887 U JP3890887 U JP 3890887U JP H058384 Y2 JPH058384 Y2 JP H058384Y2

Authority

JP

Japan

Prior art keywords

permanent magnet

inner diameter

pole piece

outer diameter

magnetic

Prior art date

1987-03-17

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 - Lifetime

Links

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• 230000005291 magnetic effect Effects 0.000 claims description 24
• 239000011553 magnetic fluid Substances 0.000 claims description 18
• 238000007789 sealing Methods 0.000 claims description 11
• 230000005294 ferromagnetic effect Effects 0.000 claims description 9
• 230000000149 penetrating effect Effects 0.000 claims description 3
• 230000004907 flux Effects 0.000 description 9
• 238000010586 diagram Methods 0.000 description 3
• 230000003749 cleanliness Effects 0.000 description 2
• 239000006247 magnetic powder Substances 0.000 description 2
• 229910000859 α-Fe Inorganic materials 0.000 description 2
• 229910000975 Carbon steel Inorganic materials 0.000 description 1
• 229910002555 FeNi Inorganic materials 0.000 description 1
• 229910001289 Manganese-zinc ferrite Inorganic materials 0.000 description 1
• JIYIUPFAJUGHNL-UHFFFAOYSA-N [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] JIYIUPFAJUGHNL-UHFFFAOYSA-N 0.000 description 1
• 239000010962 carbon steel Substances 0.000 description 1
• NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 1
• 239000012141 concentrate Substances 0.000 description 1
• 239000000428 dust Substances 0.000 description 1
• 230000000694 effects Effects 0.000 description 1
• 239000004519 grease Substances 0.000 description 1
• SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
• 238000004519 manufacturing process Methods 0.000 description 1
• 229910000734 martensite Inorganic materials 0.000 description 1
• 229910001105 martensitic stainless steel Inorganic materials 0.000 description 1
• 238000000034 method Methods 0.000 description 1
• 239000002480 mineral oil Substances 0.000 description 1
• 235000010446 mineral oil Nutrition 0.000 description 1
• 239000003595 mist Substances 0.000 description 1
• 239000003921 oil Substances 0.000 description 1
• 229910000889 permalloy Inorganic materials 0.000 description 1
• 229910052761 rare earth metal Inorganic materials 0.000 description 1
• 150000002910 rare earth metals Chemical class 0.000 description 1
• 229920002545 silicone oil Polymers 0.000 description 1
• 239000002904 solvent Substances 0.000 description 1
• 229910001220 stainless steel Inorganic materials 0.000 description 1
• 239000010935 stainless steel Substances 0.000 description 1