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EP1384523A1 - Procédé d'application en lit fluidisé et en continu d'un revêtement sans chromate sur un tube - Google Patents

Procédé d'application en lit fluidisé et en continu d'un revêtement sans chromate sur un tube Download PDF

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Publication number
EP1384523A1
EP1384523A1 EP03012962A EP03012962A EP1384523A1 EP 1384523 A1 EP1384523 A1 EP 1384523A1 EP 03012962 A EP03012962 A EP 03012962A EP 03012962 A EP03012962 A EP 03012962A EP 1384523 A1 EP1384523 A1 EP 1384523A1
Authority
EP
European Patent Office
Prior art keywords
coating
pipe
tube
primer
induction coil
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.)
Granted
Application number
EP03012962A
Other languages
German (de)
English (en)
Other versions
EP1384523B1 (fr
Inventor
Dirk Heinrich
Heinz Dr. Scholten
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.)
Evonik Operations GmbH
Original Assignee
Degussa 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 Degussa GmbH filed Critical Degussa GmbH
Publication of EP1384523A1 publication Critical patent/EP1384523A1/fr
Application granted granted Critical
Publication of EP1384523B1 publication Critical patent/EP1384523B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/54—No clear coat specified
    • B05D7/546—No clear coat specified each layer being cured, at least partially, separately
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
    • B05D1/22—Processes for applying liquids or other fluent materials performed by dipping using fluidised-bed technique
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
    • B05D1/22—Processes for applying liquids or other fluent materials performed by dipping using fluidised-bed technique
    • B05D1/24—Applying particulate materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • B05D7/146—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies to metallic pipes or tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2254/00—Tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0218—Pretreatment, e.g. heating the substrate
    • B05D3/0245—Pretreatment, e.g. heating the substrate with induction heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254—After-treatment
    • B05D3/0281—After-treatment with induction heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
    • B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
    • B05D3/0426—Cooling with air

Definitions

  • the object of the invention was to provide a new method which is continuous Chrome-free pipe coating enables.
  • Process for the continuous coating of Pipes are already known.
  • the magazine "Kunststoffe", Volume 57, Issue 1, Pages 21-24 described a process by which pipes with PVC by vortex sintering be coated, however, it does not have good adhesion values and homogeneous Layer thickness distributions received. It cannot be the essential ones Meet the requirements of the automotive industry.
  • the tubes are heated by medium frequency induction. Approximation formulas for the Demand for electrical energy, the coating performance of such a system and the Powder requirements are specified.
  • pipe pieces can be made in a desired Length coupled into an endless strand and in the horizontal continuous process be coated on the outside with plastic powder.
  • Polyamide powders are particularly suitable, especially based on polyamide 11 and polyamide 12. Powders can be used manufactured according to DE 29 06 647 (Hüls AG), with the trade name VESTOSINT (Degussa AG) Process particularly well, because they are a special due to the production in the precipitation process achieve a round grain shape.
  • Adhesion promoter applied. All common types for polymers are suitable as primers, especially those for polyamides. They can be in solution, suspension or Powder form can be applied. They are particularly suitable for VESTOSINT VESTOSINT coordinated adhesion promoter. With a solvent-based adhesion promoter a solids content of approx. 8% is used, then the layer thickness of the vented primer is between 5 and 8 ⁇ m. The method according to the invention can be used uniformly Achieve layer thicknesses of 50 to 1,000 ⁇ m. Layer thicknesses of 50 to 300 are preferred ⁇ m, with the inventive method fluctuations of ⁇ 30% can be achieved can. A commercially available adhesion promoter (e.g. VESTOSINT adhesion promoter WS 5) applied. The layer thickness of the vented primer typically is between 5 and 8 microns. Becomes a solvent-based adhesion promoter used, this usually has a solids content of about 8%.
  • the tubes produced using the method according to the invention are particularly suitable as Hydraulic and brake lines for e.g. the automotive industry.
  • the medium frequency induction heating was chosen because it was a continuous process heating method that is easy to regulate and very quick, using the Another advantage is that the induction coil, which heats the tube through it, directly in the swirling powder can be arranged and there is no loss of heat. at 10,000 Hz and a tube wall thickness of 2 mm, heating at 300 ° C takes 1 s. at heating is even possible at lower frequencies because of the greater depth of penetration faster in front of you, at 2,000 Hz the time would only be 0.73 s for the same conditions.
  • the induction coil is designed as a coiled tube and cooling water flows through it; she remains cold, just like the powder.
  • the generator system consists of the machine generator, which generates the high frequency, the control cabinet with control panel, the capacitor bank and the induction coil.
  • the throughput speed (feed) of the pipes depends on the pipe diameter and wall thickness, i.e. on the weight of the pipe per unit length, and on the generator power.
  • the generator efficiency and the required heating of the pipe also play an important role. Since these last-mentioned influencing variables can, however, be regarded as constant or at least not very variable in a first consideration, corresponding mean numerical values can be assumed.
  • N G ⁇ c p .delta.t 860 ⁇
  • N the generator power in kW
  • G the continuous pipe weight in kg / h
  • cp the specific heat of steel ( ⁇ 0.12 kcal / kg grd.)
  • ⁇ t the required temperature increase of the pipe
  • ⁇ the overall efficiency of the generator system (approx. 0.6 to 0.75).
  • the throughput speed V max in m / min, the generator power N in kW, the pipe outer diameter d a in mm and the pipe wall thickness s are also to be used in mm.
  • the pipe coating system (Fig. 01) consists of:

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • General Induction Heating (AREA)
  • Chemical Treatment Of Metals (AREA)
EP03012962A 2002-07-23 2003-06-07 Procédé d'application en lit fluidisé et en continu d'un revêtement sans chromate sur un tube Expired - Lifetime EP1384523B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10233345A DE10233345A1 (de) 2002-07-23 2002-07-23 Kontinuierliche chromatfreie Rohrbeschichtungen durch Wirbelsintern
DE10233345 2002-07-23

Publications (2)

Publication Number Publication Date
EP1384523A1 true EP1384523A1 (fr) 2004-01-28
EP1384523B1 EP1384523B1 (fr) 2005-08-17

Family

ID=29796511

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03012962A Expired - Lifetime EP1384523B1 (fr) 2002-07-23 2003-06-07 Procédé d'application en lit fluidisé et en continu d'un revêtement sans chromate sur un tube

Country Status (10)

Country Link
EP (1) EP1384523B1 (fr)
JP (1) JP4360856B2 (fr)
KR (1) KR20040010311A (fr)
CN (1) CN100509178C (fr)
AT (1) ATE302069T1 (fr)
BR (1) BR0302592A (fr)
CA (1) CA2435690A1 (fr)
DE (2) DE10233345A1 (fr)
ES (1) ES2246443T3 (fr)
MX (1) MXPA03006198A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2236217A1 (fr) 2009-04-02 2010-10-06 Babcock Borsig Service GmbH Procédé et dispositif de revêtement de tuyaux métalliques ou d'autres composants longs ayant une section transversale limitée

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012101651A1 (de) * 2012-02-29 2013-08-29 Thyssenkrupp Rothe Erde Gmbh Verfahren zur Herstellung eines Wälzlagerkäfigs für ein Axial-Radial-Wälzlager sowie Axial-Radial-Wälzlager
DE102012101649A1 (de) * 2012-02-29 2013-08-29 Thyssenkrupp Rothe Erde Gmbh Verfahren zur Herstellung eines Wälzlagerkäfigs, insbesondere für Großwälzlager sowie Vorrichtung zur Durchführung des Verfahrens
IT201700047436A1 (it) * 2017-05-03 2018-11-03 Ima Spa Metodo per rivestire materiale sfuso
CN110076059B (zh) * 2019-03-18 2021-11-05 北京丰隆汇技术有限公司 一种卡簧挂点补粉方法
CN112893061B (zh) * 2021-01-18 2022-02-25 南京和涛塑胶有限公司 一种n-hap热浸塑钢管的生产工艺

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3108022A (en) * 1960-05-09 1963-10-22 Polymer Processes Inc Apparatus for coating an elongate body with fluidized coating material
US3560239A (en) * 1964-03-25 1971-02-02 United States Steel Corp Method of coating an elongated body

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1288125C (zh) * 2003-01-16 2006-12-06 张小燕 一种利用鸡蛋壳制备丙酸钙的方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3108022A (en) * 1960-05-09 1963-10-22 Polymer Processes Inc Apparatus for coating an elongate body with fluidized coating material
US3560239A (en) * 1964-03-25 1971-02-02 United States Steel Corp Method of coating an elongated body

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GEMMER R: "Aussenbeschichten von Rohren mit PVC durch Wirbelsintern", KUNSTSTOFFE, vol. 57, no. Heft 1, 1967, pages 21 - 24, XP009018626 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2236217A1 (fr) 2009-04-02 2010-10-06 Babcock Borsig Service GmbH Procédé et dispositif de revêtement de tuyaux métalliques ou d'autres composants longs ayant une section transversale limitée

Also Published As

Publication number Publication date
JP2004105949A (ja) 2004-04-08
CN1488447A (zh) 2004-04-14
KR20040010311A (ko) 2004-01-31
CN100509178C (zh) 2009-07-08
EP1384523B1 (fr) 2005-08-17
MXPA03006198A (es) 2004-12-03
CA2435690A1 (fr) 2004-01-23
DE50300986D1 (de) 2005-09-22
ES2246443T3 (es) 2006-02-16
JP4360856B2 (ja) 2009-11-11
ATE302069T1 (de) 2005-09-15
DE10233345A1 (de) 2004-02-12
BR0302592A (pt) 2004-08-24

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