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全钢客车车体内表面涂层的防蚀能力随时间的推移而逐渐降低。烃基材料涂层的防蚀性能消失得特别快,四、五年后实际上它就不能保护金属了。以高粘度沥青材料为基的涂层,特别是579号玛(王帝)脂涂层最耐久。用这种材料对客车车体内表面进行防蚀,涂层寿命可延长到十年。在涂层
The anti-corrosion ability of all-steel passenger car inner surface coating gradually decreases over time. The corrosion resistance of the hydrocarbyl material coating disappears particularly rapidly, and in four or five years it can not actually protect the metal. Coatings based on high-viscosity bituminous materials, most notably No. 579 (King Dili), are the most durable. With this material on the bus body surface corrosion, coating life can be extended to ten years. In the coating