EP1384523B1 - Kontinuierliche chromatfreie Rohrbeschichtung durch Wirbelsintern - Google Patents

Kontinuierliche chromatfreie Rohrbeschichtung durch Wirbelsintern Download PDF

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Publication number
EP1384523B1
EP1384523B1 EP03012962A EP03012962A EP1384523B1 EP 1384523 B1 EP1384523 B1 EP 1384523B1 EP 03012962 A EP03012962 A EP 03012962A EP 03012962 A EP03012962 A EP 03012962A EP 1384523 B1 EP1384523 B1 EP 1384523B1
Authority
EP
European Patent Office
Prior art keywords
pipe
coating
induction coil
process according
primer
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 - Lifetime
Application number
EP03012962A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1384523A1 (de
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/de
Application granted granted Critical
Publication of EP1384523B1 publication Critical patent/EP1384523B1/de
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 novel process, which is the continuous chrome-free tube coating possible.
  • Process for the continuous coating of Pipes are already known.
  • Page 21-24 describes a process by which pipes with PVC by vortex sintering
  • it does not focus on good adhesion and homogeneity Layer thickness distributions received. It can not be the essential Meet the requirements of the automotive industry.
  • the tubes are each heated by medium frequency induction. Approximate formulas for the Demand for electrical energy, the coating performance of such a system and the Powder requirements are specified.
  • Suitable coating agents vortexable, meltable polymers or mixtures thereof.
  • Particularly suitable are polyamide powders, in particular based on polyamide 11 and polyamide 12.
  • polyamide powders in particular based on polyamide 11 and polyamide 12.
  • In this case can be powder manufactured according to DE 29 06 647 (Hüls AG), with the trade name VESTOSINT (Degussa AG) process particularly well, since they are a special due to the production in the precipitation process reach round grain shape.
  • On the pipe surface is first a commercial Applied adhesion promoter.
  • Suitable as primers are all common types for polymers, especially those for polyamides. They can be used in solution, suspension or Powder form can be applied. Especially suitable for VESTOSINT are the specially designed VESTOSINT coordinated bonding agent. If a solvent-containing adhesion promoter with used a solids content of about 8%, so is the layer thickness of the flashed primer between 5 and 8 ⁇ m. With the method according to the invention can be uniform Achieve layer thicknesses of 50 to 1 000 microns. Preference is given to layer thicknesses of 50 to 300 ⁇ m, whereby fluctuations of ⁇ 30% are achieved with the method according to the invention can. On the pipe surface is first a commercial adhesion promoter (e.g. VESTOSINT bonding agent WS 5) applied. The layer thickness of the flashed primer typically is between 5 and 8 microns. Will be a solventborne primer used, this usually has a solids content of about 8%.
  • VESTOSINT bonding agent WS 5 commercial adhesion promoter
  • the tubes produced by 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 is convenient to regulate and also very quick heating method, in which the Another advantage is that the induction coil, which heats the continuous pipe, directly in can be arranged swirling powder and thereby enter no heat loss. at 10,000 Hz and a tube wall thickness of 2 mm, the heating takes place at 300 ° C for 1 s. at smaller frequencies, the heating is even because of the greater penetration depth faster at 2 000 Hz, the time would be only 0.73 s for the same conditions.
  • the induction coil is designed as a tube spiral and is flowed through by cooling water; she stays cold as well as 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 flow rate (feed) of the tubes depends on the tube diameter and wall thickness, ie the weight of the tube per unit length, as well as on the generator output.
  • the pipe coating plant (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)
  • Chemical Treatment Of Metals (AREA)
  • General Induction Heating (AREA)
EP03012962A 2002-07-23 2003-06-07 Kontinuierliche chromatfreie Rohrbeschichtung durch Wirbelsintern Expired - Lifetime EP1384523B1 (de)

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 EP1384523A1 (de) 2004-01-28
EP1384523B1 true EP1384523B1 (de) 2005-08-17

Family

ID=29796511

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03012962A Expired - Lifetime EP1384523B1 (de) 2002-07-23 2003-06-07 Kontinuierliche chromatfreie Rohrbeschichtung durch Wirbelsintern

Country Status (10)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009015533B9 (de) 2009-04-02 2011-01-13 Babcock Borsig Service Gmbh Verfahren und Vorrichtung zum Beschichten von metallischen Rohren oder anderen langen Bauteilen mit begrenztem Querschnitt
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

Family Cites Families (3)

* 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
BE661657A (pt) * 1964-03-25
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

Also Published As

Publication number Publication date
DE50300986D1 (de) 2005-09-22
DE10233345A1 (de) 2004-02-12
JP4360856B2 (ja) 2009-11-11
CA2435690A1 (en) 2004-01-23
JP2004105949A (ja) 2004-04-08
BR0302592A (pt) 2004-08-24
EP1384523A1 (de) 2004-01-28
CN1488447A (zh) 2004-04-14
KR20040010311A (ko) 2004-01-31
ATE302069T1 (de) 2005-09-15
MXPA03006198A (es) 2004-12-03
ES2246443T3 (es) 2006-02-16
CN100509178C (zh) 2009-07-08

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