GB1527745A - Indicating surface defects on material - Google Patents

Indicating surface defects on material

Info

Publication number
GB1527745A
GB1527745A GB50517/75A GB5051775A GB1527745A GB 1527745 A GB1527745 A GB 1527745A GB 50517/75 A GB50517/75 A GB 50517/75A GB 5051775 A GB5051775 A GB 5051775A GB 1527745 A GB1527745 A GB 1527745A
Authority
GB
United Kingdom
Prior art keywords
coating
dec
surface defects
resin containing
indicating surface
Prior art date
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
Application number
GB50517/75A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rheinmetall Air Defence AG
Original Assignee
Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from CH1640474A external-priority patent/CH585404A5/en
Priority claimed from CH631175A external-priority patent/CH594884A5/en
Application filed by Werkzeugmaschinenfabrik Oerlikon Buhrle AG filed Critical Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Publication of GB1527745A publication Critical patent/GB1527745A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
    • G01N27/84—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields by applying magnetic powder or magnetic ink
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/083—Magnetic toner particles
    • G03G9/0831—Chemical composition of the magnetic components
    • G03G9/0832—Metals

Abstract

1527745 Coated particles SCHWEISSINDUSTRIE OERLIKON BUHRLE AG 9 Dec 1975 [10 Dec 1974 16 May 1975] 50517/75 Heading B2E [Also in Divisions C4 and G1] A particle 1 for use in magnetic flow detection (see Division Gl) is of iron with a first coating 2 of a lacquer e.g. a phenolic resin or an epoxy resin containing titanium dioxide and a second coating 3 e.g. an acrylic resin containing fluorescent pigment. Reflecting glass balls may be embedded in the second coating.
GB50517/75A 1974-12-10 1975-12-09 Indicating surface defects on material Expired GB1527745A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1640474A CH585404A5 (en) 1974-12-10 1974-12-10 Detection of surface faults in magnetisable material - by applying solvent to ferromagnetic powder coating including pigment and lacquer
CH631175A CH594884A5 (en) 1975-05-16 1975-05-16 Detection of surface faults in magnetisable material

Publications (1)

Publication Number Publication Date
GB1527745A true GB1527745A (en) 1978-10-11

Family

ID=25699340

Family Applications (1)

Application Number Title Priority Date Filing Date
GB50517/75A Expired GB1527745A (en) 1974-12-10 1975-12-09 Indicating surface defects on material

Country Status (11)

Country Link
JP (1) JPS5821700B2 (en)
AT (1) AT371605B (en)
DE (1) DE2554492A1 (en)
ES (1) ES443043A1 (en)
FR (1) FR2294442A1 (en)
GB (1) GB1527745A (en)
IT (1) IT1048695B (en)
LU (1) LU73956A1 (en)
NL (1) NL7514367A (en)
NO (1) NO144583C (en)
SE (1) SE420952B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4341997A (en) 1979-11-14 1982-07-27 Magnaflux Corporation Magnetic particle inspection process useable with simultaneous illumination by ultra-violet and white light

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2244362A1 (en) * 1972-09-09 1974-05-30 Albert Lauber Kg Dr MAGNETIC POWDER TEST SUBSTANCE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4341997A (en) 1979-11-14 1982-07-27 Magnaflux Corporation Magnetic particle inspection process useable with simultaneous illumination by ultra-violet and white light

Also Published As

Publication number Publication date
LU73956A1 (en) 1976-07-01
ES443043A1 (en) 1977-04-01
JPS5184285A (en) 1976-07-23
NL7514367A (en) 1976-06-14
ATA911675A (en) 1982-11-15
AT371605B (en) 1983-07-11
DE2554492A1 (en) 1976-06-16
FR2294442A1 (en) 1976-07-09
NO144583B (en) 1981-06-15
NO754130L (en) 1976-06-11
FR2294442B1 (en) 1982-02-19
SE7513843L (en) 1976-06-11
JPS5821700B2 (en) 1983-05-02
IT1048695B (en) 1980-12-20
SE420952B (en) 1981-11-09
NO144583C (en) 1981-09-23

Similar Documents

Publication Publication Date Title
EP0238035A3 (en) Electrophoretic display particles and a process for their preparation
GB1376505A (en) Recording medium for a spark burning recorder
AU477086B2 (en) Coating of solid substrates with magnetically propelled particles
CA973291A (en) Abrasion resistant coating composition of an acrylic polymer, a polyester and a thermosetting constituent
US3320523A (en) Method for visibly indicating and recording magnetic fields
GB1530197A (en) Magnetic record carrier
GB1527745A (en) Indicating surface defects on material
GB1275168A (en) Piston rings and method of making the same
GB1388862A (en) Information record card
ES407627A1 (en) Method of pretreating metal surfaces
JPS57176533A (en) Magnetic recording medium
JPS6427022A (en) Magnetic recording medium and its production
JPS57143733A (en) Magnetic recording medium
GB1530762A (en) Magnetic tyre valve dust cap with a reflector fitted on the top of same
GB1525795A (en) Coated glass
JPS647457A (en) Cathode-ray tube
JPS57135439A (en) Magnetic recording medium
GB1229840A (en)
JPS5737719A (en) Magnetic recording medium
GB1333634A (en) Magnetic flaw detection
GB1302642A (en)
JPS5428784A (en) Pigment coated fluorescent body and method of producing the same
JPS5758246A (en) Manufacture of vertical magnetic recording medium
JPS5428785A (en) Pigment coated fluorescent body and method of producing the same
JPS57167125A (en) Magnetic recording medium

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee