ADC12 Aluminum Alloy Gravity Casting Aluminum Casting Prototype

 

Surface treatment methods for aluminum and aluminum alloys

(Method 1) Degreasing treatment. Wipe with solvent dampened with absorbent cotton, remove oil stains, and then wipe several times with a clean cotton cloth. Commonly used solvents include trichloroethylene, ethyl acetate, acetone, butanone, and gasoline.

 

(Method 2) Degrease and chemically treat in the following solution: concentrated sulfuric acid 27.3, potassium dichromate 7.5, water 65.2, soak at 60-65 ℃ for 10-30 minutes, then remove and rinse with water, air dry or dry below 80 ℃; Alternatively, wash in the following solution before drying: phosphoric acid 10 n-butanol 3 water 20. This method is suitable for phenolic nylon adhesive and has good results

 

(Method 3) Degrease and chemically treat in the following solution: ammonium bifluoride 3-3.5, chromium oxide 20-26, sodium phosphate 2-2.5, concentrated sulfuric acid 50-60, boric acid 0.4-0.6, water 1000, soak at 25-40 ℃ for 4.5-6min, then wash and dry. This method has a high bonding strength and can be bonded within 4 hours after treatment. It is suitable for epoxy adhesive and epoxy nitrile adhesive bonding.

(Method 4) Degrease and chemically treat in the following solution: phosphoric acid 7.5, chromium oxide 7.5, alcohol 5.0, formaldehyde (36 38%) 80, soak at 15-30 ℃ for 10-15 minutes, then wash and dry in water at 60-80 ℃.

 

(Method 5) After degreasing, anodize in the following solution: immerse 22g/l of concentrated sulfuric acid at a DC strength of 1-1.5A/dm2 for 10-15 minutes, then immerse in a saturated potassium dichromate solution at 95-100C for 5-20 minutes, then wash with water and dry.

 

(Method 6) Degrease and chemically treat in the following solution: potassium dichromate 66 sulfuric acid (96%) 666 water 1000, soak at 70 ℃ for 10 minutes, then wash with water and dry.

 

(Method 7) Degrease and chemically treat in the following solution: nitric acid (d=1.41), 3 hydrofluoric acid (42%), 1 soak at 20 ° C for 3 seconds, rinse with cold water, then wash with hot water at 65 ° C, rinse with distilled water, and dry. This method is suitable for cast aluminum alloys with high copper content.

 

(Method 8) After sandblasting or polishing, anodize in the following solution: chromium oxide, 100 sulfuric acid, 0.2 sodium chloride, 0.2. Increase the voltage from 0V to 10V within 10 minutes at 40 ℃, maintain it for 20 minutes, and then increase it from 10V to 50V within 5 minutes, maintain it for 5 minutes, and then wash it with water and dry it at 700C. Note: The concentration of free chromium oxide should not exceed 30-35g/l.

 

(Method 9) Degrease and chemically treat in the following solution: Soak in sodium silicate 10 non ionic scale remover 0.1 at 65 ° C for 5 minutes, then wash with water below 65 ° C, then wash with distilled water and dry. Suitable for bonding aluminum foil.

 

(Method 10) After degreasing, chemically treat in the following solution: sodium fluoride 1, concentrated nitric acid 15, water 84, soak at room temperature for 1 minute, wash with water, and then treat in the following solution: concentrated sulfuric acid 30, sodium dichromate 7.5, water 62.5, soak at room temperature for 1 minute, wash with water, and dry.

 

 

 

 

Basic Information

Total Capitalization	less than US$50,000
Country / Region	China
Year Established	2014
Total Employees	100 to 149
Business Type	Exporter, Manufacturer, Trading Company

 

Trading Capabilities

Total Annual Sales	less than US$50,000
Export Percentage	90 percent to 94 percent
OEM Services	Yes
Small Orders Accepted	Yes
Brand Names	Innolead
Payment Terms	TT
Main Competitive Advantages	Experienced R&D Department, Large Product Line, ODM (Original Designing & Manufacturing), OEM Capability, Production Capacity, Reliability, Reputation
Other Competitive Advantages	NA
Major Customer	Soprano, European Thermodynamics Ltd.
Export Markets	Australasia, Central/South America, Eastern Europe, Mid East/Africa, North America, Western Europe

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTACT US

Alex He

Tel:+86 15989331617

Whatsapp&Wechat:+86 15989331617

Skype ID:alex.ho43

Email: alex.he@innolead.net

 

Web:www.innolead.net

 

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