solutions for corrosion problems on cranes and heavy equipment
DESCRIPTION
Crane Rust and Cause Safety and Maintenance Issues. Harsh environments such as Saltwater, Fertilizer, Chlorine and Sulfuric Acid not only eat the crane, but eat the maintenance budget. This presentation can also be seen on YouTube, It covers both electrical and structural steel.TRANSCRIPT
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Solutions For Corrosion Problems in Cranes & Heavy Equipment
Produced By
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What Are We Going To Cover Today?
1) Definition of Corrosion
2) Types of Corrosion
3 ) Types of Metals
4) Corrosion Treatment Processes a) determine actual problem b) determine products required c) remove existing corrosion d) inspect metal surfaces for major defects e) apply corrosion preventative compounds
5) Role Of Inspectors
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Audience Participation & Presenters
Dan Jenkins
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Audience Participation & Presenters
Contact Us Before During And After
In Webinar BoxEmail – [email protected] 813-877-4665 -
Ron Knight
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Bolts and Fasteners
Where Does Corrosion Occur?
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Boom Sections
Where Does Corrosion Occur?
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Under Carriage
Where Does Corrosion Occur?
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Electronics
Where Does Corrosion Occur?
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Corrosion…. A Lot More Than Cosmetic
Factors Include:
Maintenance Labor Costs
Equipment Replacement Costs
Critical Down Time
Worker Safety
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Where is Corrosion Happening?
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Definition of Corrosion
The return of metals to their normal oxide state
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Types of Corrosion●Uniform●Localized●Galvanic●Environmental Cracking●Flow Assisted●Intergranular●De-Alloying●Fretting●High Temperature
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Uniform Corrosion
•Most common type of corrosion•Caused by chemical or electro chemical reaction•Destroys most metal•Slow moving•Easy to monitor•Correctable in PM
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Localized Corrosion
•Corrosion targets one area of metal structure•Extremely dangerous•Three basic types
Pitting
Crevice
Filiform
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Environmental Cracking•Extremely dangerous
•Stress Corrosion Cracking
•Hydrogen-induced cracking
•Corrosion fatigue
•Caused by reaction of metal to environment
Chemical-including gases
Temperature
Moisture
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Fretting Corrosion
•Caused by un-lubricated movement•Hard to detect•Occurs by vibration/rubbing of parts•Causes pitting and galling
Leads to stress raisers and tensile failures
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Corrosion Pit-Tensile Failure
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Fatigue Fracture
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Effects of Corrosion on Types of Metals
•Different base metals react differently•Iron and steel-iron oxides-usually red/orange•Aluminum-aluminum oxide-white powder
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Effects of Corrosion on Types of Metals
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Effects of Corrosion on Types of Metals
•Copper – oxides–Cuprous-red or yellow
–Cupric sulfate-pale green or white powder
–Copper acetate-blue
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More About Moisture / Water
1.Ron Knight To Explain
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More About Acid Vapors
1.Ron Knight To Explain
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More Salts & Chlorides
1.Ron Knight To Explain
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Types of Metals Found on Heavy Equipment
1. Iron
2.Steel3.4.Various
Elements
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Types of Bolts, Fasteners and Hardware Found on Heavy Equipment
Low or Medium Carbon Steel
Medium Carbon Steel, Quenched and Tempered
Medium Carbon Alloy Steel, Quenched and Tempered
Stainless Steel
Other
1.R
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Summary About Conditions
Know Your Environment
Pay Attention To Inspection Reports
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Questions
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Preventing Corrosion
Better Than Any Cure!Better Than Any Cure!
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Corrosion Prevention
Selecting Corrosion Prevention Compounds
Goals / Factors / Issues
Water Displacement
Specific Gravity
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Corrosion Prevention
Selecting Corrosion Prevention Compounds
Length of Time It Lasts
Type of Lubrication
Resistance to Water
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Corrosion Prevention
Explanation of Nanotechnology And
Why Should You Think About It?
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Corrosion Prevention
Applying Corrosion Prevention Compounds
Dip Process
Great for Fasteners
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Corrosion Prevention
Corrosion Prevention Compounds
Brushing Technique
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Corrosion Prevention
Selecting Corrosion Prevention Compounds
Spray Techniques
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Questions
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Let’s Talk Exterior Corrosion
Problems With Re Painting – Or, Sandblasting & Repainting
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Let’s Talk Exterior Corrosion
Problems With Re Painting – Or, Sandblasting & Repainting
The Key Is Understanding Free Iron Oxides
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Let’s Talk Exterior Corrosion
Problems With Re Painting – Or, Sandblasting & Repainting
Who Has Seen Rust Underneath Paint
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Corrosion Conversion
Process
Rusted Scraped Converted
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Corrosion Removal
RK
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Corrosion Conversion
Progression
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Old School New School
Corrosion ConversionPaint Over No Rust
Prep and PaintOver Rust
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Corrosion Converters Considerations
1. How Much Acid Does Product Contain?2.3. How Much Time is Involved in
Preparation?4.5. How Many Steps Are There In
Preparation?6.7. What is The Dry Time?8.9. What is The Cure Time?10.11. How Soon Can One Begin To Paint?
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Questions
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Conclusion
Small Problems Turn Into Big Problems
Time Is Money – Consider Labor Costs
Protect Your People & Assets
Ounce of Prevention is WorthA Pound of Cure
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Thank You!
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References
Liberty Crane ServiceCrane TechNational Crane ServicesCertified Boom Repair