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1、SEAGULL Document Number : SG 3 1040 1000Issue Number ： 1Page ： 1/2PERFORMANCEPERFORMANCE INSPECTIONINSPECTION STANDARDSTANDARD OFOF PLATINGPLATING PRODUCTSPRODUCTS1. Nickel and chrome are plated on copper substrates:1.1 Thickness of plating layers：Ni layer7.6um;Chrome layer0.25um。1.2 Corrosion resis
2、tance performance: Neutral salt spray test for 96 hours; Acid salt spray test for 24 hours.After above tests, corrosion points per an inch on the surface of 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 p
3、art into a baking box with the temperature 250C10C and last for 1 hour, remove it and 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. 2. Nickel and chrome are plated on iron substrates:2.1Thickness of plating
4、layers：Ni layer7.6um;Chrome layer0.25um。2.2 Corrosion resistance performance: Neutral salt spray test for 24 hours; Acid salt spray test for 24 hours.After above tests, corrosion points per an inch on the surface of parts are not more than 1 point, corrosion point length of any direction is not more
5、 than 0.8mm. 2.3 Adhesion test of plating layers: Put the part into a baking box with the temperature prescribed by ASTMASTM B571-9:B571-9: StandardStandard PracticePractice forfor QualitativeQualitative AdhesionAdhesion TestingTesting ofof MetallicMetallic CoatingsCoatings and last for 1 hour, remo
6、ve it and 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. (Cosmetic assessment standards should comply with the requirements of ASTM B571-97)3. Chrome is plated on zinc alloy substrates:3.1 Thickness of platin
7、g layers：Copper layer9um;Nickel layer10.16um; Copper nickel layer19.05um; Chrome layer0.25um.3.2 Corrosion resistance performance: Neutral salt spray test for 24 hours; Acid salt spray test for 24 hours.After above tests, corrosion points per an inch on the surface of parts are not more than 1 point
8、, corrosion point length of any direction is not more than 0.8mm.3.3 Adhesion test of plating layers: Put the part into a baking box with the temperature 250C10C and last for 1 hour, remove it and put into the water with room temperature, then remove it out of water and observe if there is blisters,
9、 peeling and cracks on the surface. 4. Zinc is plated on iron substrates:4.1 Thickness of plating layers：Zinc layer7um;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, corr
10、osion point length of any direction is not more than 0.8mm.4.3 Adhesion test of plating layers: Put the part into a baking box with the temperature 250C10C and last for 1 hour, remove it and 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. 5. Chrome is plated on zinc alloy substrates:Should comply with inspection standard of plastic plating parts SG3104010299.6.Refer to process documents and standard inspection procedure if necessary.Written by : Approved by: Date:
