GB1184717A - Improvements in or relating to the Comminuting of Powder Material and to Moulding using Powdered Plastics Materials - Google Patents

Improvements in or relating to the Comminuting of Powder Material and to Moulding using Powdered Plastics Materials

Info

Publication number
GB1184717A
GB1184717A GB2056967A GB2056967A GB1184717A GB 1184717 A GB1184717 A GB 1184717A GB 2056967 A GB2056967 A GB 2056967A GB 2056967 A GB2056967 A GB 2056967A GB 1184717 A GB1184717 A GB 1184717A
Authority
GB
United Kingdom
Prior art keywords
moulding
moulds
fluidized
tube
comminuted
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
GB2056967A
Inventor
Herbert John Sharp
Jack Ellis Hyams
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.)
Sankey Holding Ltd
Original Assignee
GKN Sankey Ltd
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 GKN Sankey Ltd filed Critical GKN Sankey Ltd
Publication of GB1184717A publication Critical patent/GB1184717A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/34—Component parts, details or accessories; Auxiliary operations
    • B29C41/36—Feeding the material on to the mould, core or other substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/14—Mills in which the charge to be ground is turned over by movements of the container other than by rotating, e.g. by swinging, vibrating, tilting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
    • 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
    • B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
    • B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
    • B29C41/06—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould about two or more axes
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/22—Making multilayered or multicoloured articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/12—Making granules characterised by structure or composition
    • B29B2009/125—Micropellets, microgranules, microparticles
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/08—Coating a former, core or other substrate by spraying or fluidisation, e.g. spraying powder
    • B29C41/10—Coating a former, core or other substrate by spraying or fluidisation, e.g. spraying powder by fluidisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/25—Solid
    • B29K2105/251—Particles, powder or granules

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Robotics (AREA)
  • Moulding By Coating Moulds (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

1,184,717. Ball mills; mixing &c. GKN SANKEY Ltd. 5 Aug., 1968 [3 May, 1967 (3)], Nos. 20547/67; 20493/67 and 20569/67. Headings B1C and B2A. [Also in Division B5] Powdered plastics material is fluidized and comminuted in a ball mill before feeding to a rotary moulding machine. The various components of a moulding mixture are fed via hoppers 10, 11, 12 into a tube 14 where the material is fluidized by injection of a gas at 15. The tube passes through a vibrator 16 and this part of the tube contains metal balls which are retained by a screen, while the comminuted and inter mixed material passes out, as a fluidized powder, into a moulding machine. This has rotatable moulds 20, 21 rotated about orthogonal axis 22 and 23. The moulding material passes from a conduit 17 into a hollow rotating support shaft 24 and thence through short arms 25 into the moulds. The moulds are rotated slowly either in an oven or by using a heating fluid supplied to double-walled moulds. The fluidizing gas is nitrogen pre-heated by a heat exchanger 26 and recirculated. The heat exchanger may also be used for quick cooling at the end of a moulding operation, and separate hot or cold gas supplies may be maintained. A conductive filler may be used, heated by an electric field, and removed magnetically before moulding.
GB2056967A 1967-05-03 1967-05-03 Improvements in or relating to the Comminuting of Powder Material and to Moulding using Powdered Plastics Materials Expired GB1184717A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2054767 1967-05-03

Publications (1)

Publication Number Publication Date
GB1184717A true GB1184717A (en) 1970-03-18

Family

ID=10147693

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2056967A Expired GB1184717A (en) 1967-05-03 1967-05-03 Improvements in or relating to the Comminuting of Powder Material and to Moulding using Powdered Plastics Materials

Country Status (1)

Country Link
GB (1) GB1184717A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0596835A1 (en) * 1992-11-03 1994-05-11 Illinois Institute Of Technology Solid state shear extrusion pulverization
US5395055A (en) * 1992-11-03 1995-03-07 Illinois Institute Of Technology Solid state shear extrusion pulverization
US5397065A (en) * 1992-11-03 1995-03-14 Illinois Institute Of Technology Solid state shear extrusion pulverization
US5415354A (en) * 1992-11-03 1995-05-16 Illinois Institute Of Technology Solid state shear extrusion pulverization
US5704555A (en) * 1993-08-02 1998-01-06 Illinois Institute Of Technology Single-screw extruder for solid state shear extrusion pulverization and method
US5743471A (en) * 1993-08-02 1998-04-28 Illinois Institute Of Technology Solid state shear extrusion pulverization
WO1999032270A1 (en) * 1997-12-19 1999-07-01 Rotospeed Limited Method and apparatus for feeding material into a rotating mould
EP1029644A1 (en) * 1999-02-17 2000-08-23 Ferro Corporation Method for preparing colorant coated polymeric resin powder for rotational moulding
FR2875166A1 (en) * 2004-09-16 2006-03-17 Polytech Soc Par Actions Simpl Component rotomoulding process uses mixture of micronised synthetic material matrix and vegetable fibres
CN104802354B (en) * 2015-05-18 2018-07-27 温岭市旭日滚塑科技有限公司 Rotation molding secondary charging device and Plastic Rolling Molds

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0596835A1 (en) * 1992-11-03 1994-05-11 Illinois Institute Of Technology Solid state shear extrusion pulverization
US5395055A (en) * 1992-11-03 1995-03-07 Illinois Institute Of Technology Solid state shear extrusion pulverization
US5397065A (en) * 1992-11-03 1995-03-14 Illinois Institute Of Technology Solid state shear extrusion pulverization
US5415354A (en) * 1992-11-03 1995-05-16 Illinois Institute Of Technology Solid state shear extrusion pulverization
US5704555A (en) * 1993-08-02 1998-01-06 Illinois Institute Of Technology Single-screw extruder for solid state shear extrusion pulverization and method
US5743471A (en) * 1993-08-02 1998-04-28 Illinois Institute Of Technology Solid state shear extrusion pulverization
WO1999032270A1 (en) * 1997-12-19 1999-07-01 Rotospeed Limited Method and apparatus for feeding material into a rotating mould
EP1029644A1 (en) * 1999-02-17 2000-08-23 Ferro Corporation Method for preparing colorant coated polymeric resin powder for rotational moulding
US6428733B1 (en) 1999-02-17 2002-08-06 Ferro Corporation Rotational molding
FR2875166A1 (en) * 2004-09-16 2006-03-17 Polytech Soc Par Actions Simpl Component rotomoulding process uses mixture of micronised synthetic material matrix and vegetable fibres
CN104802354B (en) * 2015-05-18 2018-07-27 温岭市旭日滚塑科技有限公司 Rotation molding secondary charging device and Plastic Rolling Molds

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees