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.
|Published (Last):||2 May 2004|
|PDF File Size:||15.6 Mb|
|ePub File Size:||18.21 Mb|
|Price:||Free* [*Free Regsitration Required]|
Express Coat Corporation
Of course, that doesn’t mean that ALL parts will chip and rust! Sorry for the confusion, I have taken my forty lashes and will continue to hear about this from all those that know me.
The coating thickness of the autodeposited film is time and temperature related. Typically, film thickness is controlled from 0. Uniformly coats the inside and outside of tubular shapes, complex assemblies, and narrow crevices. The chemical reaction with the metal and the paint flows quickly as the film builds providing a self-limiting feature which results in a uniform thickness for the entire part. Well, caoting have to remember that it is an organic coating, not a metallurgically bonded electroplating.
Autophoretic Aquence Industrial Coating Plating Steel Surface Protection Zinc Alternative
Thanks for the help. If the condition of the received materials deviates from the above stated criteria, performance suffers significantly. Please contact your local PPG office for autophkretic paper.
This diffusion control leads to a uniform coating thickness on complex shapes and in recessed areas. The line would most likely only be able to process zinc substrates and not plain steel at the same time.
Are there procedures in place to preclude hydrogen damage in such parts? From beautiful Pine Beach New Jersey: This unusual feature strongly limits carryover of coating chemicals into the rinse tanks and greatly reduces proceess demand for waste treatment.
No tool markers, die, bluing or coil markings. It’s one more tool porcess 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.
This allows the coating dispersion to flow into and around the most complex shapes. 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. I have developed, researched, and produced autodeposition coatings, and lead this coatings to be applied in some automobile factories for many years. But now we have another process reported to offer costing advantages over competitive coatings and 0 percent disadvantages.
Coating may be bent back on itself with no cracking autophordtic peeling. Presently, there are numerous installations in operation, both captive and job-shop, coating a variety of fabricated steel parts for the automotive and general industry markets.
Unlike coating processes that require a charge to deposit the coating i. I know that these two processes are not the same.
Autophoretic® Coating Process
Latex films form by coalescence. The bath viscosity is close to that of water with little or no organic solvents in the coating bath. We looked at it for replacing some heavy prlcess plating on couplings and had to dismiss it because the parts are handled very roughly and will chip and rust. All information presented is for general reference and does not represent a professional opinion nor the policy of an author’s employer.
So, if you want to replace paint, it may be a great fit. Procdss by-product of the heat-treating process No adhesive bonding materials such as tape, epoxy, etc. Withstands nicking and marring for better handling.
One through electric circuit another without. Considerably lower temperatures autophoretkc required to cure the autodeposited parts. The newly deposited organic film is adherent yet quite porous. In hot dip coating, where Zn getting may be diffused into the lattice structure of the Fe and get attached simple substitution. Initially, the deposition process is quite rapid, but slows down as the film increases in thickness.
Metal surface must be low to medium carbon, cold or hot rolled steel. Depends on solvent, time, and temperature. The chemical reaction continues in the second layer, which results in film deposition and increased film thickness instead proceas solids loss to dragout. I’m searching for any independent research about autodeposition coating.
Second line has just been commissioned for heavy clating brake plates. Pencil hardness of 6H to 7H. No compounds or lubricants containing animal fat, paraffin, detergents or silicate ingredients. The continuous formation of coating provides a film with a high degree of surface protection and corrosion resistance.