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ES2172760T3 - Procedimiento para el estiramiento de redes y rejillas. - Google Patents

Procedimiento para el estiramiento de redes y rejillas.

Info

Publication number
ES2172760T3
ES2172760T3 ES97830567T ES97830567T ES2172760T3 ES 2172760 T3 ES2172760 T3 ES 2172760T3 ES 97830567 T ES97830567 T ES 97830567T ES 97830567 T ES97830567 T ES 97830567T ES 2172760 T3 ES2172760 T3 ES 2172760T3
Authority
ES
Spain
Prior art keywords
stretching
procedure
product
order
grids
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 - Lifetime
Application number
ES97830567T
Other languages
English (en)
Inventor
Mario Beretta
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.)
Tenax SpA
Original Assignee
Tenax SpA
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 Tenax SpA filed Critical Tenax SpA
Application granted granted Critical
Publication of ES2172760T3 publication Critical patent/ES2172760T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
    • B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
    • B29C55/14—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D28/00—Producing nets or the like, e.g. meshes, lattices
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0855—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using microwave
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0861—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using radio frequency
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/81—Plastic net

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

LA PRESENTE INVENCION SE REFIERE A UN PROCEDIMIENTO PARA ESTIRAR REDES (3) Y REJILLAS (5) DE PLASTICO, QUE TIENE LA PARTICULARIDAD DE QUE CONSISTE EN SOMETER EL PRODUCTO QUE DEBE ESTIRARSE (3, 5) A IRRADIACION CON ONDAS ELECTROMAGNETICAS, CON UNA LONGITUD DE ONDA SUPERIOR A LA ESCALA DE LOS INFRARROJOS (11, 12, 20 Y 30), A FIN DE CALENTAR EL PRODUCTO POR PERDIDA DIELECTRICA, Y EN SOMETER EL PRODUCTO A TRACCION CON EL FIN DE PRODUCIR EL ESTIRADO EN AL MENOS UNA DIRECCION. EL PROCEDIMIENTO PERMITE MEJORAR SUSTANCIALMENTE LA CAPACIDAD DEL POLIMERO DE ABSORBER LA ENERGIA A FIN DE REALIZAR RENTABLEMENTE EL PROCESO DE ESTIRADO.
ES97830567T 1997-11-04 1997-11-04 Procedimiento para el estiramiento de redes y rejillas. Expired - Lifetime ES2172760T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97830567A EP0914933B1 (en) 1997-11-04 1997-11-04 Method for stretching nets and grids

Publications (1)

Publication Number Publication Date
ES2172760T3 true ES2172760T3 (es) 2002-10-01

Family

ID=8230840

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97830567T Expired - Lifetime ES2172760T3 (es) 1997-11-04 1997-11-04 Procedimiento para el estiramiento de redes y rejillas.

Country Status (3)

Country Link
US (1) US6231803B1 (es)
EP (1) EP0914933B1 (es)
ES (1) ES2172760T3 (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005035216A1 (en) * 2003-10-13 2005-04-21 Cycloplas Holdings Pty Ltd Process for recycling waste plastics
US7326659B2 (en) 2004-02-16 2008-02-05 Conwed Plastics Llc Biodegradable netting
ITMI20110606A1 (it) 2011-04-11 2012-10-12 Tenax Spa Manufatto a struttura reticolare, procedimento per la realizzazione dello stesso ed uso di detto manufatto per applicazioni geotecniche
ITMI20110607A1 (it) * 2011-04-11 2012-10-12 Tenax Spa Manufatto a struttura reticolare, procedimento per la realizzazione dello stesso ed uso di detto manufatto per applicazioni geotecniche
ITMI20110608A1 (it) * 2011-04-11 2012-10-12 Tenax Spa Manufatto a struttura reticolare, procedimento per la realizzazione dello stesso ed uso di detto manufatto per applicazioni geotecniche
CN115230131B (zh) * 2022-09-19 2022-11-29 四川省众望科希盟科技有限公司 提高膨体聚四氟乙烯薄膜均匀度的双向拉伸装置及方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5418755B2 (es) * 1973-03-07 1979-07-10
US4336638A (en) * 1975-05-23 1982-06-29 Netlon Limited Apparatus for stretching plastic webs
CH624827A5 (es) * 1977-08-10 1981-08-31 Breveteam Sa
JPS5473841A (en) * 1977-11-25 1979-06-13 Furukawa Electric Co Ltd:The Method of crosslinking polyolefin
EP0084274B1 (en) * 1981-12-24 1988-02-24 Nippon Telegraph And Telephone Corporation Process for the production of ultrahigh-modulus polymers
US4590029A (en) * 1982-10-13 1986-05-20 P. L. G. Research Limited Molecularly orientating plastics material
US4476073A (en) * 1982-12-29 1984-10-09 Mobil Oil Corporation Process and system for orienting layered polymer films
JPS60198211A (ja) * 1984-03-21 1985-10-07 Toyobo Co Ltd 誘電体のマイクロ波加熱延伸および／または熱処理方法
US4567011A (en) * 1984-04-19 1986-01-28 Nalle George S Jr Manufacture of helical nets
JPS62181123A (ja) * 1986-02-06 1987-08-08 Nippon Telegr & Teleph Corp <Ntt> ポリエチレン延伸体の製造方法
JPH01123917A (ja) * 1987-11-10 1989-05-16 Nok Corp 複合蓄熱材
FR2646124B1 (fr) * 1988-06-22 1994-04-08 Hureau Jacques Procede et dispositif pour le faconnage en continu de feuilles ou films en matiere thermoplastique
US4906172A (en) * 1988-08-31 1990-03-06 Shell Oil Company Mold press with dielectric electrodes
EP0472393B1 (en) * 1990-08-23 1996-12-11 Nippon Petrochemicals Company, Limited Stretching machine
IL106460A (en) * 1993-07-23 1997-09-30 Palboard Ltd Method of recycling plastic materials

Also Published As

Publication number Publication date
EP0914933B1 (en) 2002-02-20
EP0914933A1 (en) 1999-05-12
US6231803B1 (en) 2001-05-15

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