Neutral rust remover and preparation method thereof

The invention relates to the technical field of metal surface treatment, and particularly discloses a neutral rust remover and a preparation method thereof. The neutral rust remover is prepared from the following raw materials in parts by weight: 12-15 parts of PA-EH, 1-2 parts of thiourea, 3-5 parts of citrate, 3-6 parts of a surfactant, 1-3 parts of triethanolamine and 72-77 parts of water. The preparation method comprises the following steps: S1, weighing PA-EH, thiourea, citrate and water, and uniformly mixing and stirring to prepare a mixed solution; s2, a surfactant and triethanolamine are weighed and added into the mixed solution, the mixture continues to be mixed and stirred to be uniform, and the finished rust remover is prepared; the rust remover has the advantages that the rust removal effect is good, excessive corrosion cannot be generated on the to-be-derusted part, and volatile acid mist and wastewater needing to be neutralized cannot be generated. 本申请涉及金属表面处理技术领域，具体公开了一种中性除锈剂及其制备方法；一种中性除锈剂由包含以下