FR1425924A - Procédé de fabrication d'un tuyau à paroi composite, garni intérieurement d'ailettes - Google Patents

Procédé de fabrication d'un tuyau à paroi composite, garni intérieurement d'ailettes

Info

Publication number
FR1425924A
FR1425924A FR7821A FR7821A FR1425924A FR 1425924 A FR1425924 A FR 1425924A FR 7821 A FR7821 A FR 7821A FR 7821 A FR7821 A FR 7821A FR 1425924 A FR1425924 A FR 1425924A
Authority
FR
France
Prior art keywords
lined
fins
manufacturing
wall pipe
composite wall
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
FR7821A
Other languages
English (en)
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.)
Calumet and Hecla Inc
Original Assignee
Calumet and Hecla Inc
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 granted granted Critical
Publication of FR1425924A publication Critical patent/FR1425924A/fr
Application filed by Calumet and Hecla Inc filed Critical Calumet and Hecla Inc
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/001—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by extrusion or drawing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/08—Making wire, bars, tubes
    • B21C23/10—Making finned tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/22—Making metal-coated products; Making products from two or more metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/154—Making multi-wall tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
    • B21C37/202—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with guides parallel to the tube axis
    • 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
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/06—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of metal tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
    • F28F13/185—Heat-exchange surfaces provided with microstructures or with porous coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
    • F28F19/06—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/085—Heat exchange elements made from metals or metal alloys from copper or copper alloys
    • 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
    • Y10S29/00—Metal working
    • Y10S29/047—Extruding with other step
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49361—Tube inside tube
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49377—Tube with heat transfer means
    • Y10T29/49378—Finned tube
    • Y10T29/49384—Internally finned
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49925—Inward deformation of aperture or hollow body wall
    • Y10T29/49927—Hollow body is axially joined cup or tube
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49925—Inward deformation of aperture or hollow body wall
    • Y10T29/49934—Inward deformation of aperture or hollow body wall by axially applying force

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Geometry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Extrusion Of Metal (AREA)
  • Forging (AREA)
FR7821A 1964-04-23 1966-03-03 Procédé de fabrication d'un tuyau à paroi composite, garni intérieurement d'ailettes Expired FR1425924A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US362029A US3267564A (en) 1964-04-23 1964-04-23 Method of producing duplex internally finned tube unit

Publications (1)

Publication Number Publication Date
FR1425924A true FR1425924A (fr) 1966-01-24

Family

ID=23424405

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7821A Expired FR1425924A (fr) 1964-04-23 1966-03-03 Procédé de fabrication d'un tuyau à paroi composite, garni intérieurement d'ailettes

Country Status (5)

Country Link
US (1) US3267564A (fr)
DE (1) DE1452244A1 (fr)
FR (1) FR1425924A (fr)
GB (1) GB1058409A (fr)
SE (1) SE310479B (fr)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1580856A (fr) * 1968-02-05 1969-09-12
US3833987A (en) * 1971-02-10 1974-09-10 Hudson Products Corp Finned tubes for use in heat exchangers
US4087893A (en) * 1974-11-08 1978-05-09 Nippon Gakki Seizo Kabushiki Kaisha Process for producing a heat pipe
FR2390274A1 (fr) * 1977-05-13 1978-12-08 Michelin & Cie Procede de fabrication de tringles pour pneumatiques
US4256083A (en) * 1979-01-08 1981-03-17 Wilson Charles P Firebox
US4216575A (en) * 1979-02-01 1980-08-12 Noranda Mines Limited Method of reforming the fins of a finned tube
US4313301A (en) * 1979-10-25 1982-02-02 Caterpillar Tractor Co. Rotating fluidized bed heat exchanger
FR2491202B1 (fr) * 1980-10-01 1986-02-28 Air Liquide Rechauffeur atmospherique
US4337824A (en) * 1980-10-24 1982-07-06 Amtrol Double wall heat exchanger
DE3048959C2 (de) 1980-12-24 1985-08-29 Wieland-Werke Ag, 7900 Ulm Verfahren und Vorrichtung zur Herstellung eines Rippenrohres für Wärmeübertrager o.dgl.
JPS60121045A (ja) * 1983-12-05 1985-06-28 Kuroki Kogyosho:Kk 熱交換体及びその制造方法
US4546819A (en) * 1984-02-10 1985-10-15 Amtrol Inc. Double wall heat exchanger
JPS61144390U (fr) * 1985-02-27 1986-09-05
DE9405062U1 (de) * 1994-03-24 1994-05-26 Hoval Interliz Ag, Vaduz-Neugut Wärmetauscherrohr für Heizkessel
US5409675A (en) * 1994-04-22 1995-04-25 Narayanan; Swami Hydrocarbon pyrolysis reactor with reduced pressure drop and increased olefin yield and selectivity
US5687677A (en) * 1995-05-22 1997-11-18 Delaware Capital Formation, Inc. Heat exchange tube and method of making same
DE19612470A1 (de) * 1996-03-28 1997-10-02 Km Europa Metal Ag Austauscherrohr
JP3223166B2 (ja) * 1997-08-26 2001-10-29 エルジー電子株式会社 冷蔵庫
DE10038624C2 (de) * 2000-08-03 2002-11-21 Broekelmann Aluminium F W Wärmeübertragungsrohr mit gedrallten Innenrippen
US6644358B2 (en) * 2001-07-27 2003-11-11 Manoir Industries, Inc. Centrifugally-cast tube and related method and apparatus for making same
ITMN20040019A1 (it) 2004-07-13 2004-10-13 Unical Ag Spa Tubo in caldaia a tubi di fumo
US7464537B2 (en) * 2005-04-04 2008-12-16 United Technologies Corporation Heat transfer enhancement features for a tubular wall combustion chamber
US20090266529A1 (en) * 2005-04-18 2009-10-29 Giovanni Jahier Protected Carbon Steel Pipe for Fire Tube Heat Exchange Devices, Particularly Boilers
JP4665713B2 (ja) * 2005-10-25 2011-04-06 日立電線株式会社 内面溝付伝熱管
US8162040B2 (en) * 2006-03-10 2012-04-24 Spinworks, LLC Heat exchanging insert and method for fabricating same
US20070259156A1 (en) * 2006-05-03 2007-11-08 Lucent Technologies, Inc. Hydrophobic surfaces and fabrication process
US20100018672A1 (en) * 2008-07-22 2010-01-28 Tai-Her Yang Conducting type inter-piping fluid thermal energy transfer device
JP2011144989A (ja) * 2010-01-13 2011-07-28 Mitsubishi Electric Corp 熱交換器用の伝熱管、熱交換器、冷凍サイクル装置及び空気調和装置
KR101287707B1 (ko) * 2011-11-14 2013-08-07 최성환 열교환관 및 그 제조방법
WO2013123239A1 (fr) * 2012-02-17 2013-08-22 Ceramatec, Inc. Système fischer tropsch avancé
DE102013226742A1 (de) * 2013-12-19 2015-06-25 Mahle International Gmbh Strömungsmaschine
KR102230073B1 (ko) 2016-07-07 2021-03-19 지멘스 악티엔게젤샤프트 터빈 설치 바디를 갖는 증기 발생기 파이프
US10988904B2 (en) * 2016-08-18 2021-04-27 Ian R. Cooke Snow and ice melting device, system and corresponding methods
USD837357S1 (en) * 2016-09-15 2019-01-01 Ngk Insulators, Ltd. Catalyst carrier for exhaust gas purification
USD835769S1 (en) * 2016-09-15 2018-12-11 Ngk Insulators, Ltd. Catalyst carrier for exhaust gas purification
USD837356S1 (en) 2016-09-15 2019-01-01 Ngk Insulators, Ltd. Catalyst carrier for exhaust gas purification
USD1004622S1 (en) * 2018-02-20 2023-11-14 Ngk Insulators, Ltd. Catalyst carrier for exhaust gas purification
US11391523B2 (en) * 2018-03-23 2022-07-19 Raytheon Technologies Corporation Asymmetric application of cooling features for a cast plate heat exchanger
US11549644B2 (en) 2019-07-09 2023-01-10 Seatrec, Inc. Apparatus and method for making internally finned pressure vessel
EP3950045A1 (fr) * 2020-08-04 2022-02-09 Heraeus Deutschland GmbH & Co. KG Électrode annulaire pour un dispositif médical
CN114087909B (zh) * 2021-11-19 2022-10-25 西安交通大学 一种自振动内插折弯挠曲形翅片复合烟管

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US813918A (en) * 1899-12-29 1906-02-27 Albert Schmitz Tubes, single or compound, with longitudinal ribs.
US1441459A (en) * 1921-02-04 1923-01-09 Philadelphia Bronze Bearing & Composite tube and method of making the same
CH213305A (de) * 1938-03-23 1941-01-31 Felten & Guilleaume Carlswerk Aluminiumrohr.
US3009484A (en) * 1958-09-08 1961-11-21 Arvin Ind Inc Sound attenuating laminated pipe

Also Published As

Publication number Publication date
GB1058409A (en) 1967-02-08
US3267564A (en) 1966-08-23
DE1452244A1 (de) 1971-07-22
SE310479B (fr) 1969-05-05

Similar Documents

Publication Publication Date Title
FR1425924A (fr) Procédé de fabrication d'un tuyau à paroi composite, garni intérieurement d'ailettes
FR1515321A (fr) Procédé de fabrication de tubes ondulés
CH486515A (fr) Procédé de fabrication d'une résine thermiquement stable
CH448646A (fr) Procédé de fabrication d'un soufflet d'étanchéité et soufflet obtenu par le procédé
FR1408901A (fr) Procédé de fabrication d'embouts de raccords pour tuyaux
FR1433651A (fr) Procédé et machine pour fabriquer des tuyaux à paroi ondulée
CH452805A (fr) Procédé de fabrication d'un article composite
CH415510A (fr) Procédé de fabrication d'un hydrolysat de levures
FR1443487A (fr) Procédé de fabrication d'acier allié
CH444121A (fr) Procédé de lavage d'un gaz
FR1458823A (fr) Procédé de fabrication de tubes à paroi épaisse
CH420393A (fr) Procédé de fabrication d'un tube à décharge à vapeur de mercure
FR1420589A (fr) Procédé de fabrication d'hydrocarbures chlorés
FR1428091A (fr) Procédé pour préparer un polyoxyméthylène ayant une stabilité améliorée à la chaleur
FR1478016A (fr) Procédé de fabrication d'une solution de sulfate d'hydroxylamine
FR1451800A (fr) Procédé de fabrication d'hydrocarbures chlorés
FR1421068A (fr) Procédé de fabrication de tôle d'acier chromée
FR1389158A (fr) Procédé de fabrication de coudes de tuyaux
FR1396003A (fr) Procédé de fabrication d'un 1-bêta-d-arabino-furanosyluracile
FR1407320A (fr) Procédé de fabrication d'un détecteur de chaleur
FR1424698A (fr) Procédé de fabrication d'acétals à partir de l'acétylène
OA00239A (fr) Procédé de fabrication de N,N'-dibenzyléthylènediamine-di-pénicilline microcristalline.
FR1491045A (fr) Procédé de fabrication d'un composé carboxylique
FR1469208A (fr) Perfectionnements aux tubes à paroi mince et à un procédé de fabrication de ces tubes
FR1494431A (fr) Procédé de fabrication d'acroléïne à partir du propylène