• Products
    ✛
    • Industrial Parts Washers
    • Precision Cleaning Systems
    • Passivation Equipment
    • Electropolishing Equipment
    • Surface Finishing Systems
    • Mass Finishing Machines
    • Wet Benches
    • Specialty & Custom Industrial Process Systems
    • Solvents, Fluids & Chemistries for Precision Cleaning
    • 3M Novec Engineered Fluids, Chemicals, & Solvents
  • Industries
  • Articles
    ✛
    • FAQ – Frequently Asked Questions
    • Precision Cleaning
      ✛
      • How Do Ultrasonic Cleaners Work?
    • Passivation
      ✛
      • What is Passivation?
    • Electropolishing
      ✛
      • What is Electropolishing?
    • Surface Finishing
      ✛
      • What is Alodine / Chem film / Chromate Conversion Coating?
      • What is Titanium Anodizing?
    • Industrial Parts Washers
  • Case Studies
    ✛
    • Industry Applications
    • Industrial Parts Washer Case Studies
    • Passivation Systems Case Studies
    • Part Cleaning Case Studies
    • Part Finishing Equipment Case Studies
    • Precision Cleaning Systems Case Studies
  • Testimonials
  • About Us
  • Contact Us

"*" indicates required fields

Contact us for info & free proposal!

More Info

Best Technology

Precision Cleaning, Passivation & Finishing Systems

Email UsEmail Us
Call Us612.392.2414
Contact an Expert
  • Products
    • Industrial Parts Washers
    • Precision Cleaning Systems
    • Passivation Equipment
    • Electropolishing Equipment
    • Surface Finishing Systems
    • Mass Finishing Machines
    • Wet Benches
    • Specialty & Custom Industrial Process Systems
    • Solvents, Fluids & Chemistries for Precision Cleaning
    • 3M Novec Engineered Fluids, Chemicals, & Solvents
  • Industries
  • Articles
    • FAQ – Frequently Asked Questions
    • Precision Cleaning
      • How Do Ultrasonic Cleaners Work?
    • Passivation
      • What is Passivation?
    • Electropolishing
      • What is Electropolishing?
    • Surface Finishing
      • What is Alodine / Chem film / Chromate Conversion Coating?
      • What is Titanium Anodizing?
    • Industrial Parts Washers
  • Case Studies
    • Industry Applications
    • Industrial Parts Washer Case Studies
    • Passivation Systems Case Studies
    • Part Cleaning Case Studies
    • Part Finishing Equipment Case Studies
    • Precision Cleaning Systems Case Studies
  • Testimonials
  • About Us
  • Contact Us
Contact an Expert
Request Info

Contact an expert on
Alodine / Chem film Coating

More Info
home Best Technology / Case Studies – Industry Applications / Alodine Chem Film Tank Line

Alodine Chem Film Tank Line

Application

The Best Technology chromate conversion coating system allows for flexible manufacturing of many chem film and Alodine® needs. System can also be designed and built for both MIL-DTL-5541 Type 1 hexavalent chromium and Type 2 hexavalent chrome free processes.  System tank configuration is dictated by Type 1 or 2 classification.

MIL-DTL-5541 Type 2 hexavalent chrome free equipment

This particular system for the aerospace industry is a hexavalent free, trivalent chrome line using TCP-HF (hex free) coating.

Alodine tank line - Chem film equipment

Type 2 Hex-Free chem film surface conversion process with TCP-HF, using Acid Clean process (typically 5 steps):

  1. Acid Clean – A general washing in a cleaning solution takes place as a pre-process step. This ensures that dirt, oil, and any residue formed from prior manufacturing or packaging processes is removed before the coating begins. Then a rinse and dry takes place.
  2. Rinse – cascade counterflowing – Ensure any detergents are removed from the part. A water-break-free test is often performed.
  3. Trivalent chromium, hex-free chrome coat – The surface conversion process takes place when the aluminum is immersed in the tank. The chromate conversion coating gets applied immediately. The period of time that it remains in immersion varies based on the method of the application, the composition of the film and the composition and size of the part itself.
  4. Rinse – cascade counterflowing
  5. Second Rinse is used in the type 2 method of surface conversion coating known as TCP-HF.

Video: Alodine Line for Hex-Free Chromate Conversion Coating

Alodine chem film chromate conversion equipment tank line

 

MIL-DTL-5541 Type 1 hexavalent chromium chromate conversion coating line

For MIL-DTL-5541 Type 1 hexavalent chromium lines, the Alodine coating tank configuration is designed and built with typically 9 chem film tanks which are commonly at elevated temperatures.

Type 1 hex chrome conversion coating process (typically 9 steps):

  1. Clean – similar to Type 2 above
  2. Rinse
  3. Etch – If there are any areas that the chem film should not be applied to, the etching process covers those areas.
  4. Rinse – Ensure any etching chemistry is rinsed to stop the etching process.
  5. Deox –  Deoxidation of the part occurs next, to remove any excess materials and oxides, contaminants and chemicals.
  6. Rinse – Remove any deox solution.
  7. Chem film coat
  8. Rinse
  9. Warm rinse.

Video: Chem Film Type 1 and Type 2 Chromate Conversion Coating System

Chem Film Type 1 and Type 2 Chromate Conversion Coating System

Typical Chem Film Line and System Configurations (Custom Sizing Available)

Since each customer’s application is unique, the chem film and Alodine coating equipment is designed to specific and to order. In general tanks ranging from 12″ x 12″ x 12″ to 96″ x 144″ x 96″ can be built with various materials from metals, plastics and polymers as well as hybrids. Based on chemicals used in the wash and chromate conversion coating system, various polymers are used for tank materials but most often polypropylene.

Chem film / Alodine Equipment

Large-scale alodine line - chem film equipment
Large-scale alodine line - chem film equipment
Chromate conversion equipment for alodining
Chromate conversion equipment for alodining
Chem film tanks used for alodining
Chem film tanks used for alodining
Alodine / Chem film line - cleaner tank
Alodine / Chem film line - cleaner tank
Chem film alodine tank with Ph meter and Dosing Pump
Chem film alodine tank with Ph meter and Dosing Pump
Alodine system - Electrical panel with PLC / HMI touchscreen
Alodine system - Electrical panel with PLC / HMI touchscreen

Chem Film Alodine Tank Line

Chem film Alodine line

Chromate Conversion / Alodine line with covered tanks

Chromate conversion Alodine line with covered tanks

Best Technology has the experience and the resources to build chromate conversion coating systems for Alodine / chem film applications both large and small. Let our application engineers design an Alodine line for your products. Contact us to learn more and start your project today!

Latest News & Products from Best Technology

Semi-Automated Inline Citric Passivation Solution with Data Tracking

For one medical device manufacturer, the design of a citric passivation solution faced two major challenges: The manufacturing process required performing a water-break test after cleaning parts, before proceeding to passivation. This meant that they could not use a fully automated passivation solution. The system had to have data tracking for quality control purposes. Semi-Automated […]

Read More

  • Industrial Parts Washers
    • Products
      • Agitated Immersion Heated Parts Washer
      • Phosphating Lines
      • Oil Removal Systems
    • Case Studies
      • Pipe Washing Equipment
      • Machine Shop Parts Washer for True Oil
      • Automotive Parts Washer System
  • Precision Cleaning Systems
    • Product Information
      • How Clean is Clean?
      • How Do Ultrasonic Cleaners Work?
    • Products
      • Ultrasonic Benchtop Parts Cleaner
      • Benchtop Ultrasonic Parts Cleaning Multi-Tank Systems
      • Ultrasonic Cleaning Consoles
      • Automated Ultrasonic Parts Cleaning Equipment Wash-Rinse-Dry
      • Agitated Immersion Ultrasonic Parts Washer
      • Immersible Ultrasonic Transducers
      • Vapor Degreasers
    • Case Studies
      • Machine Shop Parts Washer for Swiss and CNC Precision Parts
      • Applicable Articles
  • Passivation Equipment
    • Product Information
      • What is Passivation? How Does It Work?
      • Nitric vs. Citric Acid Passivation
      • CitriSurf – Citric Acid Passivation
    • Products
      • Benchtop Ultrasonic Passivation Equipment
      • Passivation Wet Bench for Citric / Nitric Acid
      • Ultrasonic Automated Passivation Equipment
      • Agitated Immersion Multi-Tank Passivation Systems
    • Case Studies
      • Automated Ultrasonic Passivation System for Medical Device Parts
      • Cleanroom Space Saving Automated Passivation System
      • Heated Polypropylene Acid Passivation and Rinse Tanks
      • Applicable Articles
  • Electropolishing Equipment
    • Product Information
      • What is Electropolishing? How Does Electropolishing Work?
      • Electropolishing Cycle and Current Calculator
      • What is Dry Electropolishing? How Does It Work?
      • Passivation vs. Electropolishing
    • Products
      • Table Top Electropolishing Equipment & Electropolishing Machines
      • Electropolishing Wet Benches
      • Large Scale Part Electropolishing Systems
      • Dry Electropolishing Machines
    • Case Studies
      • EP System – Open Top Wet Bench with Spray Rinse
  • Surface Finishing Systems
    • Alodine Lines
      • What is Alodine / Chem film / Chromate Conversion Coating?
      • Alodine Chem Film Tank Line
    • Mass Finishing Machines
      • Centrifugal Barrel Finishing Machines
      • Vibratory Bowl Polishers
    • Titanium Anodizing
      • Titanium Anodizing Equipment
  • Wet Benches
    • Product Information
      • What is a Fume Hood? How Do Fume Hoods Work?
    • Products
      • Fume Hoods
      • Wet Benches for Semiconductor & FM4910 Applications
      • Wet Benches for Citric / Nitric Passivation of Stainless Steel and Titanium
      • Wet Benches for Electropolishing
      • Cascade Overflow Rinse Tanks
      • Quick Dump Rinse Tank
    • Case Studies
      • Semiconductor Chemical Processing Wet Bench and Fume Hood
  • Specialty & Custom Industrial Process Systems
    • Automated Chemical Neutralization Tank Cart
    • Vapor and Dryfilm PTFE Coating Systems
    • Heated Hot Air Parts Dryer
    • Solvent Recovery Equipment
  • Solvents, Fluids & Chemistries for Precision Cleaning
    • Product Information
      • Why Use a Parts Cleaning Solvent?
      • Solvent Cleaning with 3M Novec Engineered Fluids
      • Thermal Management / Heat Transfer with 3M Fluorinert and Novec Fluids
    • Products
      • 3M Novec Engineered Fluids, Fluorinert Liquids, Solvents & Chemicals
      • Aqueous Cleaning Chemistries
    • Solvent Phase-outs
      • nPB Replacement
      • AK225 HCFC-225 Phase Out and Replacement with 3M Novec HFE Engineered Fluids
      • Medical Device AK 225 Replacement with 3M Novec Engineered Fluid Solvent
    • Case Studies
      • 3M Novec 72DA 73DE Solvent Vapor Degreaser For Medical Device Instruments
  • Process Validation Templates
  • Equipment Financing

Best Technology Inc.

14040 23rd Avenue N.
Minneapolis, MN 55447
Ph: 612.392.2414
Sales@BestTechnologyInc.com

Quick Links

  • Product Line Card
  • Case Studies
  • Site Map
  • Equipment Financing
  • Contact Us

Products

  • Industrial Parts Washers
  • Precision Cleaning Systems
  • Passivation Equipment
  • Electropolishing Equipment
  • Surface Finishing Systems
  • Wet Benches

Industries Served

  • Medical Device
  • Aerospace
  • Electronics
  • Automotive

Copyright © 2023 · Best Technology Inc.