The invention discloses neutral oil and
rust removing detergent used for agreeing with the
coating pretreatment production takt and a preparation method and relates to the technical field of
metal surface oil and
rust removing treatment. The neutral oil and
rust removing detergent used for agreeing with the
coating pretreatment production takt and the preparation method comprise the following components including, by weight percentage, 5-25% of inorganic salt, 20-40% of
organic acid, 5-15% of chelate, 1-5% of surface
active agent, 0.5-5% of
corrosion inhibitor and the
balance water. Accordingto the neutral oil and rust removing detergent, the oil and rust removing speed is high, the existing production takt is not influenced, in the
coating application, on the premise of not increasing investment of large equipment or not changing the existing production takt, an original
degreasing agent is directly replaced by the neutral oil and rust removing detergent, the existing
degreasing working procedure is compatible with the rust removing function, the pretreatment appearance of a
metal piece and the appearance of paint films are improved greatly, the
adhesive force and the
corrosion resisting performance of the paint films are improved remarkably, and the whole coating quality is improved.