GB1316758A - Calendering - Google Patents

Calendering

Info

Publication number
GB1316758A
GB1316758A GB2776770A GB2776770A GB1316758A GB 1316758 A GB1316758 A GB 1316758A GB 2776770 A GB2776770 A GB 2776770A GB 2776770 A GB2776770 A GB 2776770A GB 1316758 A GB1316758 A GB 1316758A
Authority
GB
United Kingdom
Prior art keywords
roll
nip
wave
nips
profiled
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
GB2776770A
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.)
KraussMaffei Extrusion GmbH
Original Assignee
Hermann Berstorff Maschinenbau GmbH
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 Hermann Berstorff Maschinenbau GmbH filed Critical Hermann Berstorff Maschinenbau GmbH
Publication of GB1316758A publication Critical patent/GB1316758A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/24Calendering

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

1316758 Calendering HERMANN BEBSTORFF MASCHINENBAU G.m.b.H. 9 June 1970 [10 June 1969] 27767/70 Heading B5A A method of reducing the time spent by material immediately upstream of a nip in a multi-roll calender, comprises forming the material in the nip into a succession of wave crests and wave troughs across substantially the whole width, so that the material at the wave crests is squeezed out into the material upstream and then flows immediately into the wave trough. In Fig. 2 a roll 2 having a sinusoidal or sawtoothed profile defines nips with plain rolls 1 and 3. These nips are followed by a nip between plain rolls 3 and 4 to remove the corrugations in the material. The roll 1 can be profiled. The profiling can be in a helical formation. In Fig. 4, (not shown), an auxiliary roll (9) is profiled. The roll 9 can be heated, or cooled, and can be driven at an infinitely variable speed, or set obliquely relative to its co-operating roll.
GB2776770A 1969-06-10 1970-06-09 Calendering Expired GB1316758A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691929350 DE1929350C3 (en) 1969-06-10 1969-06-10 Calender for the production of smooth webs or foils made of thermoplastic material

Publications (1)

Publication Number Publication Date
GB1316758A true GB1316758A (en) 1973-05-16

Family

ID=5736557

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2776770A Expired GB1316758A (en) 1969-06-10 1970-06-09 Calendering

Country Status (7)

Country Link
JP (1) JPS4944585B1 (en)
BE (1) BE751360A (en)
CS (1) CS179908B2 (en)
DE (1) DE1929350C3 (en)
FR (1) FR2050108A5 (en)
GB (1) GB1316758A (en)
NL (1) NL142349B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111716615A (en) * 2019-03-20 2020-09-29 卢云峰 Mixing device and using method thereof
US11167465B2 (en) 2017-09-26 2021-11-09 Davis-Standard, Llc Casting apparatus for manufacturing polymer film

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4363616A (en) * 1976-06-18 1982-12-14 Imperial Chemical Industries Limited Machine and part therefor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11167465B2 (en) 2017-09-26 2021-11-09 Davis-Standard, Llc Casting apparatus for manufacturing polymer film
US11173644B2 (en) 2017-09-26 2021-11-16 Davis-Standard, Llc Casting apparatus for manufacturing polymer film
CN111716615A (en) * 2019-03-20 2020-09-29 卢云峰 Mixing device and using method thereof

Also Published As

Publication number Publication date
NL142349B (en) 1974-06-17
CS179908B2 (en) 1977-12-30
BE751360A (en) 1970-11-16
DE1929350A1 (en) 1970-12-17
DE1929350B2 (en) 1977-08-18
NL7008307A (en) 1970-12-14
DE1929350C3 (en) 1978-04-20
JPS4944585B1 (en) 1974-11-29
FR2050108A5 (en) 1971-03-26

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Legal Events

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