Processes and Services
Phosphating
Phosphating is a conversion of a metal surface into an insoluble lattice of crystalline phosphate. The Phosphating process has many distinct advantages over other processes, including:
- The ability to uniformly coat irregular product surfaces
- A crystalline coating capable of retaining many different rust prevention methods
- A surface capable of sustaining up to 168 hours of continuous salt spray (when partnered with the correct rust prevention)
- Colored dye retention capability (for product identification purposes)
- Black Phosophating, barrel or rack processed
Phosphate coatings range in color from light gray to black. Jackson Tumble Finish has the capability to coat heavy, medium and fine-grain zinc phosphate, as well as manganese and titanium phosphate coatings.
» Read more about Phosphating at Jackson Tumble
Black Oxidation
Black Oxidation is a conversion finish that provides essential protection, and a distinct black coloring, to ferrous metals by creating a chemical reaction within them. The chemical reaction allows a protective coating to be formed without increasing part dimensions, dulling the part’s luster or altering the hardness of the metal. Because Black Oxidation does not actually apply a coating that bonds to metal, it cannot chip or rub off. Metal that undergoes Black Oxide conversion also receives two more distinct advantages—a very high heat tolerance and corrosion resistance. After Black Oxidation, parts can withstand up to 96-hour salt spray testing.
Passivation
ASTM A 967 regulations determine that Passivation is "the removal of exogenous iron or iron compounds from the surface of a stainless steel by means of a chemical dissolution, most typically by a treatment with an acid solution that will remove the surface contamination but will not significantly affect the stainless steel itself."
Simply put, Passivation is a chemical treatment that removes all ferrous metal and microscopic surface impurities (i.e. airborne iron, steel or dust particles) from stainless surfaces.
Tumbling/Vibratory Deburr
Both Tumbling and Vibratory Deburr utilize abrasive material to remove excess sharp edges and burrs from stampings or other machined parts. The parts are placed into a vibratory machine that tumbles/vibrates and rotates the product in abrasive material. This smoothes rough surfaces and breaks all sharp corners on the product. Vibratory Deburr is more suitable for parts requiring special handling, such as camshafts, telescoping magnesium steering columns and stainless steel intravenous trees for the medical industry.
Shot Blasting
Shot Blasting uses fine steel material to clean, descale and remove rust from parts. Parts are "sprayed" with shot at high pressure, similar to sandblasting, to reveal their original bright metallic appearance. The restored surface has a uniform luster, optimized for lube retention.
Degreasing/Washing
Degreasing is essential when fabricating or assembling parts. Degreasing is widely used to remove oils and oil-borne contaminants such as shavings, metal fines and fluxes created from the part production process.
Pickling
Pickling is the immersion of metals in an acid solution to remove fire scale and oxides caused by heating, annealing, casting and soldering. Pickling is also highly effective at rust removal. Once rinsed, the parts are clean and contaminant free, allowing for them to be treated with a rust preventative coating for added corrosion resistance.
Phos and Lube
Stearated lube applied to metal surface to aid in the cold forming process, specifically moving metal in the cold heading process.
Packaging/Sorting
In addition to metal finishing, Jackson Tumble Finish provides customized packaging and sorting solutions. The customer may specify their proprietary process and dunnage to be used, or allow JTF to offer standard hand or bulk packaging methods.
NSF-61 Certified for Brass Applications
For potable water applications for the commercial and residential clean water requirements. JTF and NSF, in partnership, have been assuring “clean water” for all applicable markets.
