自动上料搅拌车在使用了一些年头以后，搅拌车封头出现裂纹我们该如何处理，来延续搅拌车罐体的寿命，使得我们的搅拌罐能继续使用。搅拌车封头出现裂纹怎么办？

After the automatic feeding mixer has been used for several years, how can we deal with the crack on the head of the mixer to extend the life of the mixer tank and enable our mixer tank to continue to be used. What should I do if the head of mixer truck cracks?

出现裂纹就这这个样子的，出现的此种情况，方案是在搅拌车封头上打加强圈，通俗说就是一个圆圈铁板，焊接在搅拌车封头上，起到加固的作用。

This is how cracks appear. In this case, the solution is to make a reinforcing ring on the head of the mixer truck, which is commonly referred to as a circular iron plate. It is welded on the head of the mixer truck to strengthen it.

这就是加强圈，要根据搅拌车裂纹大小，把加强圈按照裂纹大小切割，能遮住裂纹就行，我们焊接要用气体保护焊就可以了，不需要特殊的焊丝来焊接。通过此方法基本搅拌车封头裂纹现象，使得搅拌车可以继续使用。

This is the reinforcing ring. According to the crack size of the mixer truck, the reinforcing ring should be cut according to the crack size to cover the crack. We can use gas shielded welding for welding without special welding wire. Through this method, the crack phenomenon of the head of the mixer truck is basically solved, so that the mixer truck can continue to be used.

问题的同时，我们要知道出现问题的原因：

While solving the problem, we should know the cause of the problem:

搅拌车封头经过冷加工制造而成，根据形状的不同，有的在生产和使用的过程中也会遇到各种各样的问题。其中比较严重的就是旋压封头出现裂纹的现象，是什么原因造成的呢?一般来说，化学成分、加工变形量、以及焊接都是造成裂纹直接的原因。

The mixer head is manufactured by cold processing. According to the different shapes, some of them may encounter various problems in the process of production and use. Among them, the more serious phenomenon is the crack of spinning head. What is the reason? Generally speaking, chemical composition, processing deformation and welding are the direct causes of cracks.

一、化学成分的影响。根据相关资料公式计算可知316，310的△值分别为+1.00、+4.72故其非常稳定不容易产生裂纹。

1、 Chemical composition. According to the calculation of relevant data and formulas, the △ values of 316310 are + 1.00 and + 4.72 respectively, so it is very stable and not easy to crack.

二、加工变形量的影响。封头在冷旋压过程中，材料的变形量较大翻边部位大可达40%以上根据相关资料介绍Cr-Ni油罐冷加工对导磁率的影响产生马氏体组织的含量随化学成分的增加而减少随冷加工变形率的增大而增加。304、321的变形率大约在15%时，马氏体增加加速316在变形率的60%时马氏体增加尚不明显。

2、 Influence of machining deformation. During the cold spinning process of the head, the deformation of the material is large, and the flanging part can reach more than 40%. According to the relevant data, the influence of cold processing on the magnetic permeability of Cr Ni oil tank is introduced. The content of martensite structure decreases with the increase of chemical composition and increases with the increase of cold processing deformation rate. When the deformation rate of 304 and 321 is about 15%, the increase of martensite is accelerated. When the deformation rate of 316 is 60%, the increase of martensite is not obvious.

三、焊接的影响。在等强度原则下选用焊接工艺焊接热影响区的晶粒长大使其塑性下降焊接缺陷中的尖锐缺口在旋压过程中被拉裂，都使其性能低于母材而先产生裂纹。

3、 Effect of welding. Under the principle of equal strength, the grain growth of the welding process welding heat affected zone will reduce its plasticity, and the sharp notch in the welding defect will be pulled and cracked in the spinning process, which will make its performance lower than that of the base metal and cause cracks first.

在知道问题的根本以后，我们日常使用时注意这些情况，可以避免搅拌车封头开裂。更多注意事项就来我们网站http://www.zkzsljbc.com咨询看看吧！

After knowing the root of the problem, we should pay attention to these conditions in daily use to avoid cracking of the mixer head. For more information, please visit our website http://www.zkzsljbc.com Consult and see!