美国CORTEC水性防锈液VPCI-337技术资讯1
PROBLEM
Short Brothers Limited Technical Group wanted to test the effectiveness of Cortec VpCI-337 as a universal corrosion preventative for most metals, including aluminum. They evaluated VpCI-337 for use on components, sheets, stacks and coils stored in-house. They also wanted to find out if VpCI-337 would contaminate metal parts.
APPLICATION
Short Brothers tested Cortec VpCI-337 in four different environments: a) hot, humid, b) acid (positioned near pretreatment phosphoric and chromic acid anodizing solutions), c) ambient (room temperature) and d) cold, dry. They fogged four stacks of three 4” x 4” (10 cm x 10cm) light gauge aluminum alloy plates with VpCI-337 spray. Also four stacks without VpCI-337 were placed in environments as controls. They examined the plates periodically over three months.
To determine contamination, Short Brothers sprayed VpCI-337 on individual sets of lampshear, crack extension and climbing drum peel tests prior to chemical treatment. The plates were deoxidized and sprayed with BB127, and then bonded with FM123-5 adhesive film at 274°F (120°C), 4.14 bar (60 psi), for 60 minutes.
CONCLUSION
Cortec VpCI-337 provided corrosion protection despite harsh conditions. In environments a, c and d, observations showed no deterioration due to corrosive attack in either the test stacks or control specimens. In the acid environments, the control stacks suffered severe corrosive attack. Although near pretreatment phosphoric and chromic anodizing solutions, the stack treated with Cortec VpCI-337 showed only some initial pitting on the top plate.
In the contamination tests, each sample exceeded expectations.Pretreatment completely removed Cortec VpCI-337, probably during the vapor degreasing operation.
“推荐阅读”
Cortec防锈推荐
相关技术资讯
- Cortec最坚固的可去除涂层,适用于最具腐蚀性的条件
- 纸可以防止腐蚀吗?Cortec用于金属包装的便捷VpCI纸简介
- 如何使用VpCI-146保护电子"裸板"免受腐蚀
- CorShield VpCI-146纸:轻松腐蚀防护与"循环经济"相结合!
- 如何通过一个简单的步骤保护电气和电子产品免受腐蚀
- cortec的VpCI-146防锈纸和VpCI-126防锈膜选择哪个
- Cortec VpCI-649防锈液有效应对模具冷却水系统的腐蚀
- VpCI-146防锈纸 & VpCI-126防锈膜保护小金属部件免受腐蚀
- 如何根据您的需要选择合适的Cortec防锈剂
- 汽车零部件在季节性温度波动时如何预防生锈?