電鍍產品性能檢驗標準英文

1、SEAGULLDocument Number : SG -3 -1040 -1000Issue Number:1Page:1/2PERFORMANCE INSPECTION STANDARD OF PLATING PRODUCTS1. Nickel and chrome are plated on copper substrates:1.1 Thickness of plating layers : Ni layer >7.6um;Chromelayer A0.25um。1.2 Corrosion resistance performance: Neutral salt spray te

2、st for 96hours; Acid salt spray test for 24 hours.After above tests, corrosion points per an inch on the surfaceof parts are not more than 1 point, corrosion point length of any direction is not more than 0.8mm.1.3 Adhesion test of plating layers: Put the part into a baking boxwith the temperature 2

3、50C士 10 C and last for 1 hour, remove itand put into the water with room temperature, then remove it outof water and observe if there is blisters, peeling and cracks onthe surface.2. Nickel and chrome are plated on iron substrates:2.1 Thickness of plating layers : Ni layer >7.6um;Chrome layer A0.

4、25um。2.2 Corrosion resistance performance: Neutral salt spray test for 24hours; Acid salt spray test for 24 hours.After above tests, corrosion points per an inch on the surfaceof parts are not more than 1 point, corrosion point length of any direction is not more than 0.8mm.2.3 Adhesion test of plat

5、ing layers: Put the part into a baking boxwith the temperature prescribed by ASTMB571-9: Standard Practice for Qualitative Adhesion Testing of Metallic Coatings and last for1 hour, remove it and put into the water with room temperature,then remove it out of water and observe if there is blisters, pe

6、eling and cracks on the surface. (Cosmetic assessment standards should comply with the requirements of ASTM B571-97)3. Chrome is plated on zinc alloy substrates:3.1 Thickness of plating layers : Copper layer > 9um;Nickel layer > 10.16um; Copper nickel layer > 19.05um; Chrome layer >0.25u

7、m.3.2 Corrosion resistance performance: Neutral salt spray test for 24hours; Acid salt spray test for 24 hours.After above tests, corrosion points per an inch on the surface ofparts are not more than 1 point, corrosion point length of any direction is not more than 0.8mm.3.3 Adhesion test of plating

8、 layers: Put the part into a baking boxwith the temperature 250° C± 10° C and last for 1 hour, remove itand put into the water with room temperature, then remove it out of water and observe if there is blisters, peeling and cracks on the surface.4. Zinc is plated on iron substrates:4.

9、1 Thickness of plating layers : Zinc layer > 7um;4.2 Corrosion resistance performance: Neutral salt spray test for 24 hours.After above tests, corrosion points per an inch on the surface of the part are not more than 1 point, corrosion point length of anydirection is not more than 0.8mm.4.3 Adhes

10、ion test of plating layers: Put the part into a baking boxwith the temperature 250C士 10 C and last for 1 hour, remove itand put into the water with room temperature, then remove it outof water and observe if there is blisters, peeling and cracks on the surface.5. Chrome is plated on zinc alloy substrates:Should comply with inspection