1. 清洁

1. Cleaning

溶剂、乳剂用于济南镀锌钢管表面的清洁，可以去除油脂、污垢、流平剂等类似有机物质，但不能去除钢材表面的锈、垢、助焊剂等，只能作为防腐蚀生产中的辅助手段。

Solvent and emulsion can remove grease, dirt, leveling agent and other similar organic substances, but can not remove rust, dirt and flux on the steel surface, so they can only be used as auxiliary means in anti-corrosion production.

2. 喷(抛)锈

2. Spraying (throwing) rust

喷雾(Pao光)除锈是由大功率电机,高速旋转的叶片和叶片喷洒,这样等磨料磨具钢沙、钢球、金属碎片和矿物质可以喷到钢管的表面下离心力的影响。是的，它不仅能完全去除锈、氧化、粉尘，而且在粗糙的冲击和摩擦的影响下达到所要求的平均粗糙度。

Spray (Pao) rust is sprayed from the blades and blades of high speed motors with high speed rotation, so that abrasive, steel balls, metal fragments and minerals can be sprayed to the surface of the steel tube under the influence of centrifugal force. Yes, it can not only completely remove rust, oxidation and dust, but also achieve the required average roughness under the influence of rough impact and friction.

喷涂(抛光)、除锈后，可延长济南镀锌钢管外表面的物理吸附效果，提高防腐涂层与管道外表面的机械结合效果。因此，喷雾除锈是一种理想的除锈方式。喷丸处理一般主要用于管道内部和外部处理，喷丸处理主要用于管道表面处理。

After spraying (polishing) and derusting, the physical adsorption effect on the outer surface of Jinan galvanized steel pipe can be extended, and the mechanical bonding effect between the anti-corrosion coating and the outer surface of the pipe can be improved. Therefore, spray rust removal is an ideal way to remove rust. Shot peening is generally used for internal and external treatment of pipeline, and shot peening is mainly used for surface treatment of pipeline.

3.工具除锈

3. Tool derusting

首先，用钢丝刷对济南镀锌钢管表面进行抛光，去除疏松或拉长的氧化皮、铁锈、焊渣等。手动工具的除锈能力可达SA2级，电动工具的除锈能力可达SA3级。如果钢表面附着强氧化铁垢，除锈效果不理想，无法获得耐腐蚀结构所需的锚固深度。

Firstly, the surface of Jinan galvanized steel pipe was polished with wire brush to remove loose or elongated oxide scale, rust and welding slag. The derusting ability of hand tools can reach SA2, and that of electric tools can reach SA3. If strong iron oxide scale is attached on the steel surface, the rust removal effect is not ideal, and the anchorage depth required for corrosion-resistant structure cannot be obtained.

4. 酸洗

4. Pickling

一般采用化学法和电解法，可用于酸洗后的喷砂、济南镀锌钢管防腐的化学酸洗、氧化皮、锈、旧涂层的去除和除锈。化学清洗可能不可避免地看起来干净和粗糙，但锚定模式是浅的，容易受到污染。

It can be used for sandblasting after pickling, chemical pickling for anticorrosion of Jinan galvanized steel pipe, removal and derusting of oxide scale, rust and old coating. Chemical cleaning may inevitably look clean and rough, but the anchoring mode is shallow and vulnerable to contamination.