IT1077591B - PROCEDURE FOR THE PRODUCTION OF A CURVED TUBE IN SYNTHETIC THERMOPLASTIC MATERIAL AND DEVICE FOR SUCH PROCEDURE - Google Patents

PROCEDURE FOR THE PRODUCTION OF A CURVED TUBE IN SYNTHETIC THERMOPLASTIC MATERIAL AND DEVICE FOR SUCH PROCEDURE

Info

Publication number
IT1077591B
IT1077591B IT19414/77A IT1941477A IT1077591B IT 1077591 B IT1077591 B IT 1077591B IT 19414/77 A IT19414/77 A IT 19414/77A IT 1941477 A IT1941477 A IT 1941477A IT 1077591 B IT1077591 B IT 1077591B
Authority
IT
Italy
Prior art keywords
procedure
production
thermoplastic material
curved tube
synthetic thermoplastic
Prior art date
Application number
IT19414/77A
Other languages
Italian (it)
Original Assignee
Hoechst 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 DE19762601818 external-priority patent/DE2601818A1/en
Priority claimed from DE19762624625 external-priority patent/DE2624625A1/en
Application filed by Hoechst Ag filed Critical Hoechst Ag
Application granted granted Critical
Publication of IT1077591B publication Critical patent/IT1077591B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D9/00—Bending tubes using mandrels or the like
    • B21D9/01—Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/02—Bending or folding
    • B29C53/08—Bending or folding of tubes or other profiled members
    • B29C53/083—Bending or folding of tubes or other profiled members bending longitudinally, i.e. modifying the curvature of the tube axis
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/80—Component parts, details or accessories; Auxiliary operations
    • B29C53/82—Cores or mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid
IT19414/77A 1976-01-20 1977-01-18 PROCEDURE FOR THE PRODUCTION OF A CURVED TUBE IN SYNTHETIC THERMOPLASTIC MATERIAL AND DEVICE FOR SUCH PROCEDURE IT1077591B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19762601818 DE2601818A1 (en) 1976-01-20 1976-01-20 Thermoplastics tube turn or bend prodn. - by heating a straight tubular piece, introducing a supporting core, and bending about a template
DE19762624625 DE2624625A1 (en) 1976-06-02 1976-06-02 Tool layout for forming pipe elbows of thermoplastics - includes mandrel formed by thin metal or plastics blades

Publications (1)

Publication Number Publication Date
IT1077591B true IT1077591B (en) 1985-05-04

Family

ID=25769931

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19414/77A IT1077591B (en) 1976-01-20 1977-01-18 PROCEDURE FOR THE PRODUCTION OF A CURVED TUBE IN SYNTHETIC THERMOPLASTIC MATERIAL AND DEVICE FOR SUCH PROCEDURE

Country Status (12)

Country Link
AT (1) AT365970B (en)
AU (1) AU508830B2 (en)
CH (1) CH617385A5 (en)
DD (1) DD128268A5 (en)
FI (1) FI770143A (en)
FR (1) FR2338782A1 (en)
GB (1) GB1574445A (en)
IN (1) IN144926B (en)
IT (1) IT1077591B (en)
NL (1) NL7700383A (en)
NO (1) NO770150L (en)
SE (1) SE417799B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8901618D0 (en) * 1989-01-25 1989-03-15 Mckechnie Plastics Limited Ans Method of forming hoses and tubes of thermoplastic material
DE19926330C2 (en) 1999-06-09 2001-08-09 Thyssenkrupp Stahl Ag Bending mandrel for a bending device and bending method for pipes
CN106552848A (en) * 2016-11-14 2017-04-05 芜湖通和汽车管路系统股份有限公司 For the core muscle of automobile pipeline bending
CN112718980A (en) * 2020-12-23 2021-04-30 凌云工业股份有限公司 Integrated casting type core mechanism with built-in steel wire rope wrapped by polyurethane

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE161517C (en) *
GB158957A (en) * 1919-11-04 1921-02-04 Emile Copeland Improved flexible mandrel for use in bending tubes
DE632274C (en) * 1934-07-18 1936-07-04 Hochvoltisolation Ag F Process for the production of stiff, curved insulating pipe pieces from hard paper or hard tissue using a flexible mandrel for laying electrical cables
FR933363A (en) * 1945-12-11 1948-04-19 Onderzoekings Inst Res Bending process for pipes made of fully synthetic, hot-workable materials
US2464796A (en) * 1946-11-19 1949-03-22 Russell B Cushman Brick cleaning and shaping machine
FR1118552A (en) * 1954-07-26 1956-06-07 Goodyear Tire & Rubber Method and device for reshaping pipes and other conduits
GB837462A (en) * 1957-12-02 1960-06-15 Gen Electric Co Ltd Improvements in or relating to waveguides and methods of bending waveguides
GB845241A (en) * 1957-12-02 1960-08-17 Gen Electric Co Ltd Improvements in or relating to waveguides and methods of bending waveguides
GB881854A (en) * 1958-05-12 1961-11-08 Btr Industries Ltd Improvements relating to pipe bending
US2971224A (en) * 1958-07-28 1961-02-14 Tamar Electronics Ind Method for producing radar probe
NL110288C (en) * 1961-11-03
US3184796A (en) * 1963-01-28 1965-05-25 Marvin A Southcott Apparatus for bending plastic pipe
DE1552862A1 (en) * 1966-12-29 1969-09-11 Banning Ag Maschinenfabrik J Bending mandrel for thin-walled pipes
DE1704661B1 (en) * 1967-11-29 1972-05-31 Hoechst Ag METHOD AND DEVICE FOR MANUFACTURING AN ELBOW TUBE FROM THERMOPLASTIC PLASTIC
US3922134A (en) * 1973-12-17 1975-11-25 Robintech Inc Pipe bending mandrel
DE2709996C3 (en) * 1977-03-08 1982-01-14 Hoechst Ag, 6000 Frankfurt Device for producing a pipe bend from a thermoplastic material

Also Published As

Publication number Publication date
AU2143477A (en) 1978-07-27
GB1574445A (en) 1980-09-10
CH617385A5 (en) 1980-05-30
FR2338782A1 (en) 1977-08-19
SE7700524L (en) 1977-07-21
AU508830B2 (en) 1980-04-03
FR2338782B1 (en) 1980-06-06
AT365970B (en) 1982-02-25
NL7700383A (en) 1977-07-22
FI770143A (en) 1977-07-21
ATA28077A (en) 1981-07-15
SE417799B (en) 1981-04-13
IN144926B (en) 1978-07-29
DD128268A5 (en) 1977-11-09
NO770150L (en) 1977-07-21

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