AUTOPHORETIC COATING PROCESS PDF

Autophoretic Coating Process is a waterborne process in which organic polymeric emulsion gets chemically deposited on the surface of a clean metal substrate. Basics of Autophoretics: Also known as autodeposition, A-coat or AP. It is a waterborne process which depends on chemical reactions between a ferrous. AUTODEPOSITION is a waterborne process which depends on chemical reactions to achieve 5 — [email protected] Chemical Coating. Stage No. 6 — Plant.

Author: Mikagal Melrajas
Country: Italy
Language: English (Spanish)
Genre: Career
Published (Last): 8 October 2006
Pages: 59
PDF File Size: 15.48 Mb
ePub File Size: 3.74 Mb
ISBN: 469-4-52625-294-3
Downloads: 73211
Price: Free* [*Free Regsitration Required]
Uploader: Fejas

I just read what I wrote above and I am not sure why I said what I did. The metal surface of the part requires only cleaning and rinsing to prepare for the chemical reaction to take place; NO electrical charge or pre-coat is required. This unusual feature strongly limits carryover of pricess chemicals into the rinse tanks and greatly reduces the demand for waste autoporetic.

Since this process involves a mild acid acting on the base part, can it result in delayed cracking under stress from hydrogen damage on a quench and tempered part as with other processes i.

Express Coat Corporation

Withstands nicking and marring for better handling. No compounds or lubricants containing animal fat, paraffin, detergents or silicate ingredients.

So, if you want to replace paint, it may be a great fit. No tool markers, die, bluing or coil markings. These ions interact with the latex in solution causing coating deposition on the surface of the steel parts. Second line has just been commissioned for heavy vehicle brake plates. It’s one more tool in the arsenal, and will fill the needs some of the time; but you have to look at the actual parts and the actual service conditions.

  ARBEITSGERICHTSGESETZ ARBGG PDF

I’m searching for any independent research about autodeposition coating. Are there procedures in place to preclude hydrogen damage in such parts?

From beautiful Pine Beach New Jersey: Is not UV stable.

Metal surface must be low to medium carbon, cold or hot rolled steel. This process has been in commercial use since Sorry for the confusion, I have taken my forty lashes and will continue to hear about this from all those that know me.

The newly deposited organic film is adherent yet quite porous. The continuous formation of coating provides a film with a high degree of surface protection and corrosion resistance. This allows the chemical activators to diffuse rapidly in the film and etch the surface of the metal.

Typically, film thickness is controlled from 0. Considerably lower temperatures are required to cure the autodeposited parts.

Autophoretic® Coating Process

If you try our search engine, I’m sure you can find some more. But in case of electrocoating, the surface atom of the lattice may form bond with foreign atoms. I know that these two processes are not the same. Presently, there are numerous installations in operation, both captive and job-shop, coating a autophorefic of fabricated steel parts for the automotive and general industry markets.

Electrocoat or electrodeposition is of course a painting process which is offered by several coatings manufacturers including PPG. The mildly acid bath liberates a small amount of iron from the steel parts being immersed, causing an immediate surface reaction that releases iron ions.

  ABNT 14724 DE 2011 PDF

The coating thickness of the autodeposited film is time and temperature related. High prrocess resistance Generally hrs. Depends on solvent, time, and temperature.

The line would most likely only be able to process zinc substrates and not plain steel at the same time. This allows the coating dispersion to flow into and around the most complex shapes. Thanks for the help. The bath viscosity is close to that of water with little or no organic solvents in the coating bath.

It’s not possible to diagnose a finishing problem or the hazards of an operation via these pages. A by-product of the heat-treating process No adhesive bonding materials such as tape, epoxy, etc. Thomas Moffitt Massachusett’s Office of Technical Assistance, Boston, MA Well, you have to remember that it is an organic coating, not a metallurgically bonded electroplating.

All information presented is for general reference and does not represent a professional opinion nor the policy of an author’s employer. Uniformly coats the inside and outside of tubular shapes, complex assemblies, and narrow crevices.

Has anyone experience with this coating on galvanized zinc surface? We looked at it for replacing some heavy zinc plating on couplings and had to dismiss it because the parts are handled very roughly and will chip and rust. If the condition of the received materials deviates from the above stated criteria, performance suffers significantly.