TESTING RESULT

The Simulation of Real World - Cyclical Seawater Immersion for 365 Days Corrosion Results (Cyclic Corrosion Testing)
2016-09-23
Through the real world of the sea and sun drilling screws on the cyclic corrosion test, the 365-day cycle after immersion and exposure to get the results.
 
The Test Results for 365 Days Seawater Immersion Corrosivity (Phase 3)
The Self-Drilling Screws Test Results for 365 Days Seawater Immersion Corrosivity
Test Start Date At 3:00 on September 24th, 2015
Test Completed Date At 3:00 on September 23th, 2016
Sample QTY 5 Pieces/Per Different Self-Drilling Screw
Test Cycle Time Per Stage (Phase 1)
(From 1st till 40th Day)
(Initial Period): 7 days’ immersion in seawater, and then another 3 days’ exposure to the sun (till 4th October, 2015).
(Midterm): 2 days’ exposure to the sun after 3 days’ soaking in seawater, and this cycle was to repeat 4 times. )
(Final): 3 days’ exposure to the sun after 7 days’ soaking in seawater. The test ends at this stage.
Test Cycle Time Per Stage (Phase 2)
(From 41st till 180th Day)
The self-drilling screws continued to be soaked when the phase 1 is completed.
The cycle time for the Phase 2:
7 days’ exposure to the sun after 30 days’ soaking in seawater, and this cycle was to repeat again and again.
Test Cycle Time Per Stage (Phase 3)
(From 181st till 365th Day)
7 days’ exposure to the sun after 30 days’ soaking in seawater, and this cycle was to repeat again and again.
Total Test Cycle Time 365 Days (From 2015/9/24 till 2016/9/23)
Tested Results (1) XIOD Coating Self-Drilling Screws (It Has Been Drilled): No red rust
(2) XIOD Coating Self-Drilling Screws (Whole Brand New): No red rust
(3) #410 Stainless Steel Self-Drilling Screws(Whole Brand New): Red rust on drill part           & thread part as well as head part.
(4) #302 SS Head Self-Drilling Screws(Whole Brand New): Serious red rust on drill                 part & thread part as well as peeling, loss.
 
Picture 1: The Test Result Overview Picture for 4 Kinds of Self-Drilling Screws


Picture 2: XIOD Coating Highly Corrosion Resistant Self-Drilling Screws(It Has Been Drilled)


Picture 3: XIOD Coating Highly Corrosiont Resistant Self-Drilling Screws(Whole Brand New)


Picture 4: #410 Stainless Steel Self-Drilling Screws(Whole Brand New)


Picture 5: #302 SS Head Self-Drilling Screws(Whole Brand New)
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