| 摘要 |
PURPOSE: A housing composition for an electromotive power steering is provided to reduce the weight of the housing for the electromotive power steering, to obtain excellent mechanical properties, and to prevent the distortion of a size due to heat and moisture. CONSTITUTION: A housing composition for an electromotive power steering comprises a polybutylene terephthalate resin 50-80 weight%, acrylonitrile - styrene - acrylate 10-20 weight%, and a glass fiber 10-30 weight%. The housing composition for the electromotive power steering includes an additive which is selected from a group of a plasticizer, an antioxidant, and their mixture. The additive is included in 0.1-5 weight% to a total weight of the composition.
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