The Holzapfel Group plates zinc-nickel according to the following standards: VW TL , DBL , Opel GME , GMW , BMW GS and DIN. The Holzapfel Group plates zinc iron according to the following standards: VW TL , DBL , BMW G , GME , GMW , DIN Zinc-iron. specification DBL 17 which details that a 10 to 15 micron deposit should provide NSS. 9 protection of hours with no zinc and hours with no red.
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The resulting measures shall be specified by the coater. Investigations shall be documented. Any contamination on the surface of the parts to b treated corrosion products or scale, oil, grease, dirt etc. The coater shall be notified of this.
Preservation of uncoated internal surfaces, for example the inside of pipes, as well as heat treatments tempering to remove hydrogen after the coating process, are offered to complement our range. Vogel Stuttgart Department: Protection against base metal corrosion: Pickling Polishing, mechanical Sand blasting.
Passivations are available in black or transparent form. Whereas for colored chromate coatings yellow, black, olive one can assume that they contain Cr VI compounds, this is not assured for transparent or blue chromate coatings. This also applies if the component strength exceeds this value in some areas only.
We coat zinc-nickel black amongst others according to the following standards: Incorporation of new 84551 versions PVs for systems, made of chromium VI -free materials. Zinc-nickel platings were developed as a result of increasing requirements with regard to corrosion protection, in particular from the automotive industry, against exposure to temperature, road salt and climatic conditions.
If no requirements are listed n. When storing parts until they are required for further processing or assembly, preservation or special storage conditions may be required. For notes on corrosion resistance and recommendations for various application cases, see Tables 2 to 4.
Dip Spin Specifications
Temporary safety precautions corrosion protection oil, packaging, where applicable by way of the sealings used shall be used to ensure that iron rust products do not occur on the inner areas of the tube during treatment, storage and transport of the tubes up to the point of installation.
Top coats sealing are optional, but not always dbk.
fbl Zinc-nickel flexible fleXXcor Learn more. No chipping and blistering of the coat is allowed. Page 14 DBL Additional DaimlerChrysler standards required: Page 5 DBL For safety-critical fasteners, property class acc. If necessary, an agreement concerning surface quality may have to be made.
An Overview Of The Coating Standards Metallveredlung Kotsch GmbH Can Adhere To
Zinc-nickel platings are normally used if the traditional zinc-plating process is insufficient, due to high temperatures or aggressive environmental conditions. Technical Special Nickel Plating Learn more. SS individual anodisation Anodised individual hybrid Partial plus anodisation. As of it is necessary for these types of systems to be delivered chromium VI -free in accordance with Continued on pages 2 to 16 Technical coordination by Central Materials and Process Engineering DaimlerChrysler AG Technical responsibility Name: For the event of several coaters involved, reference to requirement of identical properties of component surfaces?
Zinc-nickel fleXXcorr Chrome for automotive applications Copper-nickel-chrome Dl electroless nickel plating Sinter Surface Solutions Impregnating and plating locking disc. Page 7 DBL Headquarters of the Holzapfel Group Phone.: Silver Ag Learn more. These product versions may no longer be used as of on vehicles which are subject to the EU End-ofLife-Vehicle Directive. Cr VI may be contained in the coating systems up to this deadline. Functional nickel Learn more.
However currently there are no specifications which ensure that such layers do not contain additives with Cr VI content. Use this form to get in touch with your contact person at Holzapfel! The documentation for this process specification shall be submitted to DaimlerChrysler when requested during audits. Functional nickel Learn more. Page 11 DBL Specifications Customer benefits Downloads Newsletter registration. Requirement values for chromium VI -free layers adapted to state-of-the-art technology.
The corrosion resistance test is deemed to have been passed when each respective requirement in the tables of this DBL is complied with. While chromating is produced from solutions containing Cr VI and the chromating on the workpiece may therefore also contain Cr VIthe term passivation refers to chromium VI -free corrosion protection.
In accordance with one requirement, 3 2 then means 3 cycles of corrosion freedom for the head or the wrench area and 2 cycles for a bolt’s shank and thread.
The ideal heat treatment s used for a part temperature, duration, operating sequence shall be ascertained and stated in the ISIR initial sample inspection report. Bending of the components is recommended as an additional adhesion test, as far as practicable. Confidentiality of the revealed data shall be assured.
The type of additional coating is subject to agreement. The significantly higher corrosion resistance of the metallic coating in combination with the less prominent corrosion products compared to pure zinc coatings and the low-alloyed zinc-iron coatings are characteristic of zinc-nickel coatings.