At present, there are two main ways for manufacturers to deal with the rust prevention of the steel water tank of the self loading mixer:

一是鍍鋅處理，自上料攪拌車水箱做好后送到鍍鋅廠電鍍，這種方法成本較高，且費時。

One is galvanizing treatment, which is sent to the galvanizing plant for electroplating after the water tank of the feeding mixer is completed. This method has high cost and time-consuming.

二是企業自行做防腐處理，酸洗除銹→浸泡磷化液中→水箱內倒入防銹漆后再倒出→烘干。這種處理因不是廠家的規范操作，質量就難以得到保證。關鍵是目前大多數專用車企業沒有酸洗、磷化工裝，基本上未對自上料攪拌車鋼制水箱做防腐處理。鋼鐵生銹的反應機理為鐵分子與空氣中的氧氣、水發生氧化反應，所以只要有空氣和水的存在，鋼制水箱生銹就在所難免。好在為了保證標準壓力下水箱的強度，所用鋼板少有 厚度，因此水箱在使用壽命內不容易因銹蝕而漏水，即使壞了，維修或更換也較方便，且低廉。

Second, the enterprise shall carry out anti-corrosion treatment by itself, pickling and derusting → soaking in phosphating solution → pouring antirust paint into the water tank and then pouring it out → drying. Because this treatment is not the standard operation of the manufacturer, the quality is difficult to be guaranteed. The key is that at present, most special vehicle enterprises do not have pickling and phosphorus chemical equipment, and basically do not do anti-corrosion treatment for the steel water tank of self loading mixer truck. The reaction mechanism of steel rust is the oxidation reaction between iron molecules and oxygen and water in the air. Therefore, as long as there is air and water, the rust of steel water tank is inevitable. Fortunately, in order to ensure the strength of the water tank under standard pressure, the steel plate used is at least thick, so the water tank is not easy to leak due to corrosion within its service life. Even if it is broken, it is convenient to repair or replace, and the price is low.

自上料攪拌車在卸料時的注意事項：

Precautions for self loading mixer during unloading:

1、自上料攪拌車卸料前讓攪拌罐全速運轉一兩分鐘。讓混凝土充分攪拌，必要時可以加一些水，讓混凝土攪拌得更均勻，也方便卸料。

1. Let the mixing tank run at full speed for one or two minutes since the loading mixer is unloaded. Allow the concrete to be fully mixed. If necessary, add some water to make the concrete mix more evenly and facilitate unloading.

2、放料前先把出料斗溜槽打濕。放料時把車盡量停在平地上放料前先把出料斗溜槽打濕，方便清洗。

2. Wet the chute of the discharge hopper before discharging. When discharging, park the car on the flat ground as far as possible. Wet the chute of the discharge hopper before discharging to facilitate cleaning.

3、卸料不要大意和放料工打好關系。放料時自己看著，免得放料工亂操作放料操作桿，每次自上料攪拌車罐子正反轉中間位子時停一下，保護減速機，托輪等。與放料工打好關系，卸料時也不要睡的太熟，萬一工人鬧情緒，把你自上料攪拌車放到工地不轉罐子，造成悶罐就麻煩了。

3. Don't be careless in discharging and have a good relationship with the discharging worker. Watch by yourself when discharging, so as to prevent the discharging worker from operating the discharging operation lever disorderly. Stop every time when the tank of the charging mixer is in the middle position of forward and reverse rotation, so as to protect the reducer, supporting wheel, etc. Make a good relationship with the discharging worker and don't sleep too well during unloading. In case the worker is in a mood, put your self loading mixer on the construction site and don't turn the tank, resulting in the trouble of stuffy tank.

4、自上料攪拌車攪拌罐一定要仔細地沖洗干凈。洗罐子時要仔細的沖洗干凈，并把水反復的正反轉兩次，再放出來，一趟時把水箱的水全部放進罐子，再回到站加水清洗罐子。

4. The mixing tank of the self loading mixer must be washed carefully. When washing the jar, wash it carefully, and repeat the positive and negative rotation of the water twice, and then release it. In one trip, put all the water in the water tank into the jar, and then return to the station to add water to clean the jar.

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