| 摘要 |
An anticorrosion fluid composition for vehicle engine assembly is provided to protect the internal parts of the engine cooling system from corrosion due to coolant which is injected in the cooling system in the trial start-up of the engine and remains until the engine is mounted on the completed vehicle. An anticorrosion fluid composition for vehicle engine assembly is composed of 3-(2-benzothiazyle thio)propionic acid 0.5~2.5 wt%, dibenzothiazyle disulphide 0.2~0.5 wt%, diisobutyl phthalate 0.5~2 wt%, sebacic acid 0.2~0.6 wt%, benzotriazole 0.3~0.6 wt%, tolytriazole 0.3~0.6 wt%, ethylene glycol 10~40 wt%, and the remnant ion exchange water. The dibenzothiazyle disulphide serves to prevent corrosion of aluminum parts. The sebacic acid serves to prevent corrosion of aluminum and ferrous parts.
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