Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
engineer-mechanical:metalcasting [2019/07/12 22:17]
jjensen [Tungsten Disulfide]
engineer-mechanical:metalcasting [2019/09/30 18:50] (current)
jjensen [Surveys]
Line 1: Line 1:
 +==== Surveys =====
 +  * Survey on Coating Treatment for Metals ([[https://​forms.office.com/​Pages/​ResponsePage.aspx?​id=PzniMfriL0SYYKEYCtoMdVV2K5vE7llIrIPRy8ExXGhUMzZJR1Y4NFBGMkZCVjlSNTkzOEZSQ0VQSi4u|link]])
 +    * Answers the question - what is next training topic and what coatings are being used to do
 +  * Survey on Hard Anodizing (Type III) for Aluminum
 +    * Where are you having problems with anodizing
 +    * Where Are you performing Hard Anodizing
 +      * DIY shop
 +      * Commercial/​Industrial shop
 +        * Name of your shop?
 +      * Outsource the service
 +        * Who do you use?
 +        * City and State
 +      * Just want to learn about it
 +    * How are you controlling the temperature of your anodizing bath?
 +      * Ice
 +      * Chiller
 +      * Done in a cold/winter climate
 +    * Any Formal Anodizing Training?
 +      * NASF
 +    * Are you a member of any organization?​
 +    * Do you dye your parts?
 +      * Where do you purchase your dye?
 ===== Surface Treatments ===== ===== Surface Treatments =====
   * Burnish   * Burnish
Line 14: Line 36:
   * Thermal Spray   * Thermal Spray
     * Metal or ceramic from a source rod, wire, or powder is melted in a torch and sprayed onto a preheated metal part     * Metal or ceramic from a source rod, wire, or powder is melted in a torch and sprayed onto a preheated metal part
 +
 +
  
 ===== Surface Coatings ===== ===== Surface Coatings =====
   * Anodize   * Anodize
 +    * AMS 2470
     * per MIL-A-8625F,​ Type II. Provides corrosion protection and wear resistance to aluminum parts. Can be applied in a variety of colors or clear for decorative and architectural uses.     * per MIL-A-8625F,​ Type II. Provides corrosion protection and wear resistance to aluminum parts. Can be applied in a variety of colors or clear for decorative and architectural uses.
-    ​* [[http://​everyspec.com/​MIL-SPECS/​MIL-SPECS-MIL-A/​MIL-A-8625F_2377/​|EverySpec - MIL-A-8625F]]+      ​* [[http://​everyspec.com/​MIL-SPECS/​MIL-SPECS-MIL-A/​MIL-A-8625F_2377/​|EverySpec - MIL-A-8625F]]
   * Black Oxide   * Black Oxide
     * per MIL-DTL-13924D. A decorative black treatment for steel parts. Provides some corrosion protection. Also known as Black Pentrate.     * per MIL-DTL-13924D. A decorative black treatment for steel parts. Provides some corrosion protection. Also known as Black Pentrate.
 +    * MIL-F-495
 +    * AMS 2485
   * Cadmium   * Cadmium
     * per QQ-P-416F. Provides excellent corrosion resistance but considered prior practice due to environmental concerns.     * per QQ-P-416F. Provides excellent corrosion resistance but considered prior practice due to environmental concerns.
Line 29: Line 56:
   * Hard Anodize   * Hard Anodize
     * per MIL-A-8625F,​ Type III. Provides greater corrosion protection and wear resistance to aluminum parts with greater thickness of coating.     * per MIL-A-8625F,​ Type III. Provides greater corrosion protection and wear resistance to aluminum parts with greater thickness of coating.
 +    * AMS 2482A ([[https://​www.sae.org/​standards/​content/​ams2482/​|Hard Anodic Coating on Aluminum Alloys Polytetrafluoroethylene (PTFE)-Impregnated or Codeposited]])
 +    * [[https://​www.pdfproofer.com/​product/​sae-ams2482/​|cost $40.50 from SAE AMS 2482]]
   * Painting   * Painting
     * A decorative coating available for any material. Available in a wide variety of colors and formulations.     * A decorative coating available for any material. Available in a wide variety of colors and formulations.
Line 122: Line 151:
     * Elise DeKlotz, President, Lubrication Sciences International,​ 208-309-2398,​ elise@dicronite.com     * Elise DeKlotz, President, Lubrication Sciences International,​ 208-309-2398,​ elise@dicronite.com
     * Trevor Dillman, Product Engineer, Lubrication Sciences International,​ 208-621-2512,​ trevor@dicronite.com     * Trevor Dillman, Product Engineer, Lubrication Sciences International,​ 208-621-2512,​ trevor@dicronite.com
 +  * Atlantic Equipment Engineers
 +    * [[https://​micronmetals.com/​products/​tungsten-disulfide-powder/​|Tungsten Disulfide Powder]]
   * Rose Mill Co.   * Rose Mill Co.
     * [[https://​rosemill.com/​product/​tungsten-disulfide/​|Tungsten Disulfide]]     * [[https://​rosemill.com/​product/​tungsten-disulfide/​|Tungsten Disulfide]]
Line 222: Line 253:
     * [[http://​www.bryanpryor.com/​anodizing/​|Anodizing on Bryan'​s Site]]     * [[http://​www.bryanpryor.com/​anodizing/​|Anodizing on Bryan'​s Site]]
   * [[http://​heatbath.com/​metal-finishing-products/​|Heatbath - Metal Finishing Products]]   * [[http://​heatbath.com/​metal-finishing-products/​|Heatbath - Metal Finishing Products]]
-  * Step by Step Procedure +
-    * [[https://​www.wikihow.com/​Anodize-Aluminum|wikihow.com Anodize Aluminum]] +
-  * Step 1: Cleaning aluminum parts +
-    * Acid Cleaning - fluoride cleaner consists of sulfuric acid, fluoride and surfactant +
-    * Lye/Caustic Soda (Sodium Hydroxide) +
-      * "​Aluminum is rapidly attacked by even dilute solutions of caustic soda at all temperatures."​ (ASM Handbooks Online - M.Davies, Corrosion by Alkalis, Corrosion: Environments and Industries, Vol 13C, ASM Handbook, ASM International,​ 2006, p 710–726) +
-    * Graham'​s Salt (Sodium Polyphosphate) +
-    * Washing Soda or Soda Ash (Sodium Carbonate) used in swimming pools to raise pH +
-    * [[https://​www.ukessays.com/​essays/​biology/​factors-affecting-the-anodizing-of-an-aluminum-metal-biology-essay.php|Factors Affecting the Anodizing of Aluminum Metal]] +
-  * Step 2: degrease aluminum parts with any degreaser such as Simple Green +
-  * Step 3: de-smut the aluminum part +
-  * Step 4: Anodize in the acid bath at 12 amps/square foot for 45 min, keep temp at 70-72 degrees F +
-  * Step 5: remove parts from acid bath and rinse with distilled water +
-  * Step 6: Dye parts in warm dye, 100-140 degrees F +
-  * Step 7: Seal parts by placing in boiling distilled water for 20-30 minutes +
-  * <​html><​iframe width="​560"​ height="​315"​ src="​https://​www.youtube.com/​embed/​2-lfHN23Iv4"​ frameborder="​0"​ allow="​autoplay;​ encrypted-media"​ allowfullscreen></​iframe></​html>​+
   * How to Anodize Aluminum by Bill Gilmour   * How to Anodize Aluminum by Bill Gilmour
     * Cleaning with degreaser then put into sulfuric acid bath     * Cleaning with degreaser then put into sulfuric acid bath
Line 298: Line 314:
  
 ==== Blackening Aluminum ==== ==== Blackening Aluminum ====
-  * Chemical Coloring+  * Chemical Coloring ​- Blackening Aluminum 
 +  * Problems 
 +    * What concentration of Nitric Acid 
 +      * [[https://​www.grainger.com/​product/​LABCHEM-CHEMICAL-NITRIC-ACID-0-10N-9FKW2?​cm_sp=Product_Details-_-Customers_Also_Purchased-_-AZIDPBR_P-DPO-53-050719&​cm_vc=AZIDPBR_P-DPO-53-050719&​req=Customers_Also_Purchased|Grainger - 0.10N 500ML]] \$18.39
   * Step 1 - cleaning - remove self-protecting coat of aluminum oxide   * Step 1 - cleaning - remove self-protecting coat of aluminum oxide
     * glass bead blasting     * glass bead blasting
Line 305: Line 324:
       * dip into lye (Draino)       * dip into lye (Draino)
       * rinse with water       * rinse with water
-  * Step 2 - make chemical bath+  * Step 2 - make 1 gallon of chemical bath
     * glass or plastic container - not metal     * glass or plastic container - not metal
-    * distilled water (1 gal)+    * distilled water (3 quarts + plus additional to make gallon of solution)
     * nitric acid (0.5 oz)     * nitric acid (0.5 oz)
     * copper nitrate (3 oz)     * copper nitrate (3 oz)
Line 320: Line 339:
     * spray with WD-40 or other water displacing oil     * spray with WD-40 or other water displacing oil
   * References   * References
-    * Blackening Aluminum by Jerome Kimberlin, Live Steam - May 1987, p. 33+    * Blackening Aluminum by Jerome Kimberlin, Live Steam - May 1987, p. 33 ([[https://​www.dropbox.com/​s/​q8z5kfia0nsb580/​LiveSteam198705-BlackeningAluminum-Kimberlin.pdf?​dl=0|pdf]])
 ==== Electroplating ==== ==== Electroplating ====
   * Anode (Oxidation, lose electrons, positively charged)   * Anode (Oxidation, lose electrons, positively charged)
Line 455: Line 474:
  
 ==== Mining ==== ==== Mining ====
 +  * Alaska
 +    * Lead - [[https://​en.wikipedia.org/​wiki/​Red_Dog_Mine,​_Alaska|Red Dog Mine]]
 +    * Zinc - [[https://​en.wikipedia.org/​wiki/​Red_Dog_Mine,​_Alaska|Red Dog Mine]]
   * [[http://​www.nevadamining.org/​issues_policy/​ed_contacts.php|Nevada Mining Association]]   * [[http://​www.nevadamining.org/​issues_policy/​ed_contacts.php|Nevada Mining Association]]
     * Southern Nevada Mineral Education Workshop - Joseph Riney, 775-822121 ext 13, joseph@nevadamining.org     * Southern Nevada Mineral Education Workshop - Joseph Riney, 775-822121 ext 13, joseph@nevadamining.org
Navigation

Civil Engineering Engineering - Computer Engineering - Electrical Mechanical Engineering

Print/export
QR Code
QR Code engineer-mechanical:metalcasting (generated for current page)