This test procedure has been developed to judge the corrosion protection of vehicle paint using an accelerated laboratory test. It is claimed that testing according to this procedure can generate results that correlate well with those seen by driven vehicles. This test is cyclic in nature, i.e.; test specimens are exposed to changing climates over time.
Test specimens are placed in an enclosed chamber and exposed to a changing climate that comprises of the following 3 part repeating cycle. 24.0 hours exposure to salt spray according to DIN 50 021-SS. This is followed by 96.0 hours exposure to a condensing water climate according to DIN 50 017-KFW. This is followed by 48.0 hours exposure to an ambient climate of +18 to +28C according to DIN 50 014. The number of cycle repeats and therefore the test duration is variable.
Please see elsewhere in this document for details of DIN 50 021-SS, DIN 50 017-KFW & DIN 50 014.
This test is also referred to as a Cyclic Corrosion Test, often abbreviated to CCT.
以上标准信息来自互联网搜索整理，如需了解完整的VDA 621-415的信息或VDA 621-415标准解读，欢迎致电【400-6808-138】详询。
Q-FOG CRH1100是一款的具有相对湿度控制功能和溶液喷淋功能的盐雾试验箱.Q-FOG CRH1100 马上询价
Q-FOG CRH600比起SSP/CCT盐雾试验箱增加了一个可调湿度控制功能，这意味着CRH盐雾试验箱具备更广泛的标准适用范围。Q-FOG CRH600 马上询价
Q-FOG CCT1100盐雾腐蚀试验机具有1103升大容量测试能力，可在一台机器中实现高湿度、干燥、静止、加热等多个不同的循环测试条件。Q-FOG CCT1100 马上询价
Q-LAB CCT600盐雾腐蚀试验箱不仅具备了SSP 盐雾试验箱的所有优点，同时还增加100%湿度功能。CCT600测试样品容量为640升Q-FOG CCT600 马上询价