GB1166234A - Coating Methods. - Google Patents

Coating Methods.

Info

Publication number
GB1166234A
GB1166234A GB0002/68A GB100268A GB1166234A GB 1166234 A GB1166234 A GB 1166234A GB 0002/68 A GB0002/68 A GB 0002/68A GB 100268 A GB100268 A GB 100268A GB 1166234 A GB1166234 A GB 1166234A
Authority
GB
United Kingdom
Prior art keywords
coating
substrate
die
stripe
members
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
GB0002/68A
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1166234A publication Critical patent/GB1166234A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
    • H01F41/16—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates the magnetic material being applied in the form of particles, e.g. by serigraphy, to form thick magnetic films or precursors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0254—Coating heads with slot-shaped outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/303—Extrusion nozzles or dies using dies or die parts movable in a closed circuit, e.g. mounted on movable endless support
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/91—Heating, e.g. for cross linking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/9145—Endless cooling belts
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/633—Record carriers characterised by the selection of the material of cinematographic films or slides with integral magnetic track

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Coating Apparatus (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

1,166,234. Coating by extrusion. INTERNATIONAL BUSINESS MACHINES CORP. 8 Jan., 1968 [13 Jan., 1967], No. 1002/68. Heading B5A. An extrusion-coating apparatus has an adjustable die opening 90, Fig. 3, defined by fixed side members 86, 88, a vertically reciprocable transverse member 82 and substrate 30 which is pushed into contact with faces 94 of members 86, 88 by a vertically adjustable support block 46, and wherein the lower face of member 82 is concave to the substrate. Substrate 30 is pulled over block 46 and receives coating material within chamber 112, Fig. 2, delivered thereto from a hopper 10 having a vertically reciprocable plunger 22. Transverse die member 82 is carried by members 78, 72 coupled together and the latter is engaged by a threaded bolt 70 which effects reciprocation of assembly 72, 78, 82 when rotated. The substrate is guided laterally by a fixed block (128), Fig. 1 (not shown), and a recess (126) in a further block (120), see also Fig. 2, urged towards the die mechanism by a spring (124). The apparatus is primarily intended to provide a stripe of magnetic material of uniform cross-section on a tape, such cross-section changing from the modified rectangular shape of die opening 90 to rectangular when the coating is subsequently dried, e.g. in a hot air oven. Typical widths of the stripe are between # and 1 inch and a typical thickness is 0À5 mils. The radius of curvature of the lower surface of die member 82 is chosen depending on the viscosity of the coating material and the width of stripe required. Prior to drying of the coating, the particles of the magnetic material may be orientated by the application of an external magnetic field.
GB0002/68A 1967-01-13 1968-01-08 Coating Methods. Expired GB1166234A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60917167A 1967-01-13 1967-01-13

Publications (1)

Publication Number Publication Date
GB1166234A true GB1166234A (en) 1969-10-08

Family

ID=24439634

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0002/68A Expired GB1166234A (en) 1967-01-13 1968-01-08 Coating Methods.

Country Status (7)

Country Link
US (1) US3461841A (en)
CH (1) CH490130A (en)
DE (1) DE1652343A1 (en)
FR (1) FR1553979A (en)
GB (1) GB1166234A (en)
NL (1) NL6800568A (en)
SE (1) SE306688B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133737A (en) * 1983-01-15 1984-08-01 Plessey Co Plc Improvements relating to the manufacture of magnetic sensing optical devices

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3638608A (en) * 1969-04-10 1972-02-01 Standard Register Co Trailing blade striping apparatus
US4810527A (en) * 1986-09-19 1989-03-07 E. I. Du Pont Nemours And Company Free surface casting method
CA1265394A (en) * 1986-09-19 1990-02-06 James E. Geary, Jr. Free surface casting method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573097A (en) * 1951-10-30 Epstein
US2357992A (en) * 1944-01-28 1944-09-12 Charles M Banghart Portable wallpaper paste applicator
US2751313A (en) * 1950-12-21 1956-06-19 Audio Devices Inc Production of magnetic sound tape
US2779307A (en) * 1955-04-01 1957-01-29 Dominick G Foresta Adhesive applicator for wall joint tapes
US3203393A (en) * 1963-02-18 1965-08-31 Burroughs Corp Apparatus for applying stripes of low viscosity coating material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133737A (en) * 1983-01-15 1984-08-01 Plessey Co Plc Improvements relating to the manufacture of magnetic sensing optical devices

Also Published As

Publication number Publication date
NL6800568A (en) 1968-07-15
SE306688B (en) 1968-12-02
DE1652343A1 (en) 1971-03-18
US3461841A (en) 1969-08-19
CH490130A (en) 1970-05-15
FR1553979A (en) 1969-01-17

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Legal Events

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