ES370402A1 - A method of and apparatus for manufacturing rods or tubes from powder - Google Patents

A method of and apparatus for manufacturing rods or tubes from powder

Info

Publication number
ES370402A1
ES370402A1 ES370402A ES370402A ES370402A1 ES 370402 A1 ES370402 A1 ES 370402A1 ES 370402 A ES370402 A ES 370402A ES 370402 A ES370402 A ES 370402A ES 370402 A1 ES370402 A1 ES 370402A1
Authority
ES
Spain
Prior art keywords
cylindrical body
piston
powder
extremities
under pressure
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
ES370402A
Other languages
Spanish (es)
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.)
SIREM IND DE RESINES E Ste
Original Assignee
SIREM IND DE RESINES E Ste
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 SIREM IND DE RESINES E Ste filed Critical SIREM IND DE RESINES E Ste
Publication of ES370402A1 publication Critical patent/ES370402A1/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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/10—Moulds or cores; Details thereof or accessories therefor with incorporated venting means
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/027—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles having an axis of symmetry
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • 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
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
    • B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
    • 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)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Press Drives And Press Lines (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Apparatus for carrying out the densification of powders, for example PTFE powder, characterized in that it comprises in combination; a cylindrical body whose diameter corresponds substantially to the diameter of the bar to be made and whose length corresponds substantially to the length of the volume occupied inside the cylindrical body by the powder in the uncompressed state; a free piston fitted to the cylindrical body at each of its extremities, each free piston being provided with organs to ensure the tightness with the cylindrical body and being provided on its face directed towards the inside of the cylindrical body, with channels connected to a pipe that it extends parallel to the axis of the cylindrical body and ends at its exterior; a cap that seals, in a watertight manner, each end of the cylindrical body, allowing the watertight and sliding way to pass through the corresponding pipe that is integral with the piston; and a source of fluid under pressure, such as water under pressure, which empties, through holes made in the caps, in each of the volumes that exist at the extremities of the cylindrical body, between the piston and the corresponding cap. (Machine-translation by Google Translate, not legally binding)
ES370402A 1968-08-13 1969-08-11 A method of and apparatus for manufacturing rods or tubes from powder Expired ES370402A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR162885 1968-08-13

Publications (1)

Publication Number Publication Date
ES370402A1 true ES370402A1 (en) 1971-07-16

Family

ID=8653732

Family Applications (1)

Application Number Title Priority Date Filing Date
ES370402A Expired ES370402A1 (en) 1968-08-13 1969-08-11 A method of and apparatus for manufacturing rods or tubes from powder

Country Status (9)

Country Link
JP (1) JPS4812058B1 (en)
BE (1) BE737264A (en)
DE (1) DE1940756A1 (en)
ES (1) ES370402A1 (en)
FR (1) FR1590146A (en)
GB (1) GB1278109A (en)
NL (1) NL6912006A (en)
SE (1) SE353265B (en)
SU (1) SU388393A3 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE380546B (en) * 1974-03-08 1975-11-10 H Karlsson DEVICE IN THE MOVE IN A TUB-CLEARABLE MOVABLE PRESSURE PISTON, PREFERABLY IN APPARATUS FOR PRESSING OF PARAFFIN POWDER E.D. TO BLOCK LIGHTS
GB2140342A (en) * 1983-05-23 1984-11-28 Barwell Machine & Rubber Group Ram extruders
JP2006167953A (en) * 2004-12-13 2006-06-29 Toyo Seiki Seisakusho:Kk Thermocompression bonding method of regenerating synthetic resin and apparatus therefor
RU2460642C1 (en) * 2011-06-17 2012-09-10 Государственное образовательное учреждение высшего профессионального образования "Пермский государственный технический университет" Powder compaction device
CN102794856B (en) * 2012-07-23 2014-10-29 浙江东氟塑料科技有限公司 Large PTFE tube blank die-pressing die structure and die pressing method
RU2527782C1 (en) * 2012-08-27 2014-09-10 Донецкий физико-технический институт им. А.А. Галкина Национальной академии наук Украины Process of manufacturing reinforced rod-shaped products from amorphous-crystalline polymers
CN106915026A (en) * 2017-04-27 2017-07-04 南通海利特橡塑机械有限公司 Polytetrafluoroethylene (PTFE) tubular article moulding press

Also Published As

Publication number Publication date
JPS4812058B1 (en) 1973-04-18
NL6912006A (en) 1970-02-17
FR1590146A (en) 1970-04-13
DE1940756A1 (en) 1970-02-19
GB1278109A (en) 1972-06-14
SE353265B (en) 1973-01-29
SU388393A3 (en) 1973-06-22
BE737264A (en) 1970-02-09

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