Main factors affecting metal corrosion. TBI ball screw and nut are carbon steel structure. Corrosion is caused by various internal and external factors. It can be summed up as follows: 1) chemical composition and structure of metal material itself; 2) surface brightness of metal (oxygen concentration difference battery corrosion); 3) solution composition and pH value in contact with metal surface; 4) ambient temperature and humidity. Degree; _Various environmental media in contact with metal surface.

　　一，被防銹物的外表預處置

　　1. Appearance pre-disposal of rust-proof materials

　　1)外表清潔：清洗必需依被防銹物外表的性質和當時的條件，選定恰當的辦法。普通常用的有溶劑清洗法、化學處置清潔法和機械清潔法。

　　1) Appearance cleaning: Cleaning must be based on the nature of the appearance of the rust-proof material and the conditions at that time, select the appropriate method. The common cleaning methods are solvent cleaning, chemical disposal cleaning and mechanical cleaning.

　　2）外表枯燥清洗潔凈后可用過濾的枯燥緊縮空氣吹干，或者用120~170℃的枯燥器停止枯燥，也可用潔凈紗布擦干。

　　2) After the appearance is dry and cleaned, it can be dried with filtered dry compressed air, or with a dryer at 120-170 C to stop the drying, or it can be dried with clean gauze.

　　二，涂敷防銹油

　　2. Coating antirust oil

　　1）浸泡法：一些小型物品采用浸泡在防銹油脂中，讓其外表粘附上一層防銹油脂的辦法。油膜厚度可經過控制防銹油脂的溫度或粘度來到達。

　　1) Soaking method: Some small articles are soaked in rust-proof grease, so that their appearance is adhered to a layer of rust-proof grease. Oil film thickness can be achieved by controlling the temperature or viscosity of rust-proof grease.

　　2）噴霧法一些大型防銹物不能采用浸泡法涂油，普通用大約0.7Mpa壓力的過濾緊縮空氣在空氣清潔中央停止噴涂。噴霧法適用溶劑稀釋型防銹油或薄層防銹油，但必需采用完善的防火和勞動維護措施。

　　2) spraying some large antirust substances can not be used to soak the oil, usually with about 0.7Mpa pressure filtration compressed air in the air cleaning center to stop spraying. Spray method is suitable for solvent dilution antirust oil or thin layer antirust oil, but must adopt perfect fire protection and labor maintenance measures.

　　3）刷涂法用于不適用浸泡或噴涂的室外建筑設備或特殊外形的制品，刷涂時既要留意不產生堆積，也要留意避免漏涂。

　　3) Brushing method is suitable for outdoor construction equipment or products with special shape which are not suitable for immersion or spraying. When brushing, we should pay attention not only to avoid accumulation, but also to avoid leakage.

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