GB1392716A - Moulding - Google Patents

Moulding

Info

Publication number
GB1392716A
GB1392716A GB1413871A GB1413871A GB1392716A GB 1392716 A GB1392716 A GB 1392716A GB 1413871 A GB1413871 A GB 1413871A GB 1413871 A GB1413871 A GB 1413871A GB 1392716 A GB1392716 A GB 1392716A
Authority
GB
United Kingdom
Prior art keywords
lining
powder
piece
plates
clamped
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
GB1413871A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB1413871A priority Critical patent/GB1392716A/en
Priority to AU42139/72A priority patent/AU4213972A/en
Priority to FR7216670A priority patent/FR2137702B1/fr
Priority to DE19722223366 priority patent/DE2223366A1/en
Publication of GB1392716A publication Critical patent/GB1392716A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/18—Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings
    • F16L58/188—Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings for branching pipes; for joining pipes to walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04—Coatings characterised by the materials used
    • F16L58/10—Coatings characterised by the materials used by rubber or plastics
    • F16L58/1009—Coatings characterised by the materials used by rubber or plastics the coating being placed inside the pipe
    • F16L58/1036—Coatings characterised by the materials used by rubber or plastics the coating being placed inside the pipe the coating being a preformed pipe

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)

Abstract

1392716 Lining ducts in articles IMPERIAL CHEMICAL INDUSTRIES Ltd 5 May 1972 [11 May 1971 1 Oct1971] 14138/71 and 45804/71 Heading B5A [Also in Division F2] A layer of PTFE-containing moulding powder is compacted in a duct in a base member and the powder subsequently sintered, to form a flanged lining in the duct. As described for lining mild steel Y- or T-pieces, a rubber bag 42 is inserted in a T-piece 30, and end extensions clamped by plates and spacers 66; a plate and spacer 70 are added after filling the cavity 67 with powder, levelling and vibrating. The powder is isostatically compressed within a pressure vessel, with fluid entering the clamped plates through apertures 71. The clamped plates and spacers are removed, the powder flanges trimmed, and the plates reclamped. The plate for the short arm 76 is modified now to support a mandrel (88) (see Fig. 6, not shown) that provides internal support while the T-piece and lining are sintered, quenched in cold water, reheated, allowed to cool slowly, and finally trimmed. The surface of the T-piece 30 includes grooves, helical threads or a rough finish to provide a key for the lining; the lining flanges may be extended to cover the external surface of the T-piece. The powder comprises granular PTFE, fillers, and up to 10% of a monomer.
GB1413871A 1971-05-11 1971-05-11 Moulding Expired GB1392716A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB1413871A GB1392716A (en) 1971-05-11 1971-05-11 Moulding
AU42139/72A AU4213972A (en) 1971-05-11 1972-05-10 Moulding
FR7216670A FR2137702B1 (en) 1971-05-11 1972-05-10
DE19722223366 DE2223366A1 (en) 1971-05-11 1972-05-12 PROCESS FOR PRODUCING A PTFE LAYER ON A SURFACE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1413871A GB1392716A (en) 1971-05-11 1971-05-11 Moulding
GB4580471 1971-10-01

Publications (1)

Publication Number Publication Date
GB1392716A true GB1392716A (en) 1975-04-30

Family

ID=26250347

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1413871A Expired GB1392716A (en) 1971-05-11 1971-05-11 Moulding

Country Status (4)

Country Link
AU (1) AU4213972A (en)
DE (1) DE2223366A1 (en)
FR (1) FR2137702B1 (en)
GB (1) GB1392716A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2483840A1 (en) * 1980-06-06 1981-12-11 Ugine Kuhlmann PROCESS FOR COATING POLYTETRAFLUORETHYLENE INTERNAL WALLS OF A METALLIC HOLLOW BODY
GB2268116A (en) * 1992-06-26 1994-01-05 Fordbrook Eng Ltd Lining tubular fittings with plastics material
CN112893837A (en) * 2021-01-20 2021-06-04 陈烈 Method for manufacturing high-pressure-resistant and negative-pressure-resistant lining of composite steel mesh
CN115570781A (en) * 2022-10-04 2023-01-06 罗浮阀门集团有限公司 Valve body lining process of safety valve

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1538871A (en) * 1975-01-24 1979-01-24 Lepetit Spa Prostaglandins
GB2073783B (en) * 1980-04-10 1984-10-10 Cameron Iron Works Inc Lining valves by hot isotatic pressing
CA1206130A (en) * 1982-04-10 1986-06-17 William L. Mccollough Valve body with powdered metal lining and method for making the same
CN109262931B (en) * 2018-09-06 2023-06-02 陈烈 High-pressure-resistant pipeline lining forming device and forming method thereof
CN112677388B (en) * 2020-12-07 2022-11-15 阿尔法新材料(辽宁)有限责任公司 Polytetrafluoroethylene pipe fitting machining device capable of automatically sleeving pipes

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2483840A1 (en) * 1980-06-06 1981-12-11 Ugine Kuhlmann PROCESS FOR COATING POLYTETRAFLUORETHYLENE INTERNAL WALLS OF A METALLIC HOLLOW BODY
DE3122005A1 (en) * 1980-06-06 1982-05-19 PCUK-Produits Chimiques Ugine Kuhlmann, 92400 Courbevoie, Hauts-de-Seine "METHOD FOR LINING INTERNAL WALLS OF A METALLIC HOLLOW BODY WITH POLYTETRAFLUORAETHYLENE"
GB2268116A (en) * 1992-06-26 1994-01-05 Fordbrook Eng Ltd Lining tubular fittings with plastics material
GB2268116B (en) * 1992-06-26 1996-03-27 Fordbrook Eng Ltd A lining method and apparatus
CN112893837A (en) * 2021-01-20 2021-06-04 陈烈 Method for manufacturing high-pressure-resistant and negative-pressure-resistant lining of composite steel mesh
CN112893837B (en) * 2021-01-20 2022-08-26 陈烈 Method for manufacturing high-pressure-resistant and negative-pressure-resistant lining of composite steel mesh
CN115570781A (en) * 2022-10-04 2023-01-06 罗浮阀门集团有限公司 Valve body lining process of safety valve

Also Published As

Publication number Publication date
FR2137702B1 (en) 1975-08-01
FR2137702A1 (en) 1972-12-29
DE2223366A1 (en) 1973-02-08
AU4213972A (en) 1973-11-15

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee