new cleaning & finishing process for food contact surfaces

New Cleaning & Finishing Process for Food Contact Surfaces

“The ultimate solution for your Stainless Steel”

Bert De Clippel By Phibo Industries

The SUBLIMOTION-process®

- Stainless steel used for food industries must comply with several requirements & guidelines

- EHEDG (Ra < 0,8 µm)

- NSF & 3-A Sanitation (Ra < 0,8 µm)

- EN & ISO for hygiene requirement (EN 1672-2 & ISO 14159)

-European directive for machinery (2006/42/EC)

- High (hygiene) expectations of the customer

- New developed surface treatment process, specialized for the treatment of stainless steel for “Food Contact Surfaces”

- Process based on an aqueous suspension (water + inert micro particles)

Phibo Industries Bert De Clippel

Results after treatment:

- Improved surface topography

- Optimal corrosion resistance

- Restrictive surface peening

- Hydrophobic surface

Phibo Industries

The SUBLIMOTION-process®

Bert De Clippel

Improved surface topography

The SUBLIMOTION-process® removes all kinds of contamination on stainless steel from weld discoloration, oil, greases, scratches, …

... resulting in an unique surface topography

One step process




Onbehandelde 2B-finishing

Conventioneel Parelstralen



SUBLIMOTION-process®

Optimal corrosion resistance

Smoother stainless steel surfaces are less sensitive to corrosion

After the SUBLIMOTION-process® a new oxide skin arises by the self healing mechanism of passivation, restoring the optimal corrosion resistance of the stainless steel surface

Salt spray test according to ASTM A 967 “Standard specification for chemical passivation treatment for stainless steel parts”.


Sample Identification

Surface conditioning after the salt spray test

Weld condition after the salt spray test

General condition after the salt spray test

SUBLIMOTION unchanged unchanged unchanged

Restrictive surface peening The SUBLIMOTION-process® has a specific peening intensity and coverage with a saturation point of 0,008”N in order to avoid (or to reduce) the risk of distortion and high residual tensile stresses in the core material of very thin stainless steel substrates

The intensity of peening is based on the specifications of U.S. Mil. Spec. adopted as an SAE standard, namely the SAE-AMS-S-13165 specification.

Bert De Clippel

0

50

100

150

200

250

0 0,5 1 1,5 2 2,5 3

Arc

heig

ht

or

defl

ecti

on

(µ

m)

Peening time (min)

Fitted CurvePoints

Corrected GageData Points

Almen SaturationPoint

Fitted Curve

193,06 µm = 0,0076 inch

Phibo Industries

Hydrophobic surface

-A hydrophobic surface has little or no tendency to absorb water

- Lotus effect

- Much easier / better cleanability of the stainless steel


B A

Bert De Clippel

Benefits of the SUBLIMOTION-process®

· The process is capable of efficient cleaning and of achieving a very fine finishing - (Ra values < 0,6);

· The same values of surface roughness are generated in all directions resulting in an isotropic surface;

· A hydrophobic surface is created;

· The surface is continuously washed during processing;

· The process utilizes an inert cleaning suspension (slurry mixture) consisting of water and two specific products of mineral origin;

· Build-up of static charges are eliminated;


Benefits of the SUBLIMOTION-process®

· Impregnation of hard abrasive particles into the surface is prevented, and there is no iron contamination of the treated stainless steel substrates (surgically clean);

· The risk of over-pickling is avoided; · No special skills are required for the operator;

· It is a very cost effective process;

· The process is flexible and versatile;

· The process is safe, ecological and based on sustainable technology (Green process);

· There are no health or environmental issues and the process is completely dust free;

· The use of dangerous or toxic chemicals is avoided.


Thank You for your attention

Presented by Bert De Clippel

Phibo Industries 055/21.98.99 [email protected]

new cleaning & finishing process for food contact surfaces

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