液壓接頭是液壓系統中，連接高壓油管與高壓油管之間的部件，液壓管接頭多種多樣，為了確保潤滑系統的清凈，并供給機械設備軸承以潔凈的潤滑脂，需要將預安裝后的管路拆下清洗，清洗方式主要是煤油清洗和酸洗。今天要為大家介紹的是在酸洗過程中的注意事項。

The hydraulic joint is a part connecting the high-pressure oil pipe and the high-pressure oil pipe in the hydraulic system. There are many kinds of hydraulic pipe joints. In order to ensure the cleanness of the lubrication system and supply the mechanical equipment bearings with clean grease, it is necessary to remove the pre installed pipeline for cleaning. The main cleaning methods are kerosene cleaning and acid washing. Today, we would like to introduce the precautions in the pickling process.

1. 酸洗前應清除干凈焊接時的焊渣、濺出物和管子上的清漆等物。

1. Before pickling, the welding slag, spatter and varnish on the pipe shall be cleaned.

2.在拆卸、運輸、酸洗時不要碰傷了螺紋、管路及密封面，可用膠帶或塑料管堵封口。

2. Do not damage the thread, pipeline and sealing surface during disassembly, transportation and pickling, and seal with adhesive tape or plastic pipe plug.

3.各螺紋部位應用塑料帶、橡膠帶等耐酸材料加以保護，或在脫脂、水洗后螺紋處涂上干油后再在酸液中除銹，以防酸液侵蝕。

3. All thread parts shall be protected with acid resistant materials such as plastic tape and rubber belt, or the thread shall be coated with dry oil after degreasing and water washing, and then rust shall be removed in acid solution to prevent acid corrosion.

4.在酸洗的時候注意看管子的標記，不要將管子的配合記號消失或模糊。

4. Pay attention to the mark of the pipe during pickling, and do not make the matching mark of the pipe disappear or blur.

5.酸洗前管子的焊接作業已全部完成。

5. Before pickling, all welding operations of pipes have been completed.

除了在酸洗的過程中要注意，日常中也是需要去維護的。

In addition to pay attention to the pickling process, it also needs to be maintained in daily life.