攪拌車在使用了一些年頭以后，攪拌車封頭出現裂紋我們該如何處理，來延續攪拌車罐體的壽命，使得我們的攪拌罐能繼續使用。

After the mixer has been used for some years, how should we deal with the crack on the head of the mixer to extend the service life of the tank body of the mixer, so that our mixing tank can continue to be used.

出現裂紋就這這個樣子的，出現的此種情況，解決方案是在攪拌車封頭上打加強圈，通俗說就是一個圓圈鐵板，焊接在攪拌車封頭上，起到加固的作用。

Cracks are just like this. In this case, the solution is to make a reinforcing ring on the head of the mixer truck, which is generally known as a circular iron plate, welded on the head of the mixer truck to play a reinforcing role.

這就是加強圈，要根據小型攪拌車裂紋大小，把加強圈按照裂紋大小切割，能遮住裂紋就行，我們焊接要用氣體保護焊就可以了，不需要特殊的焊絲來焊接。通過此方法基本解決攪拌車封頭裂紋現象，使得攪拌車可以繼續使用。

This is the stiffening ring. The stiffening ring should be cut according to the crack size of the small mixer truck, so as to cover the crack. We need to use gas shielded welding instead of special welding wire to weld. Through this method, the crack phenomenon of the mixer head is basically solved, so that the mixer can continue to use.

解決問題的同時，我們要知道出現問題的原因：

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

攪拌車封頭經過冷加工制造而成，根據形狀的不同，有的在生產和使用的過程中也會遇到各種各樣的問題。其中比較嚴重的就是旋壓封頭出現裂紋的現象，是什么原因造成的呢?一般來說，化學成分、加工變形量、以及焊接都是造成裂紋直接的原因。

The mixer head is made by cold processing. According to different shapes, some of them will encounter various problems in the process of production and use. One of the most serious problems is the cracking of the spinning head. What is the reason? Generally speaking, chemical composition, processing deformation and welding are the direct causes of cracks.

一、化學成分的影響。根據相關資料公式計算可知316，310的△值分別為+1.00、+4.72故其非常穩定不容易產生裂紋。

1、 Effects of chemical composition. According to the calculation of relevant data formula, the △ value of 316310 is+1.00 and+4.72 respectively, so it is very stable and not easy to crack.

二、加工變形量的影響。封頭在冷旋壓過程中，材料的變形量較大翻邊部位大可達40%以上根據相關資料介紹Cr-Ni油罐冷加工對導磁率的影響產生馬氏體組織的含量隨化學成分的增加而減少隨冷加工變形率的增大而增加。304、321的變形率大約在15%時，馬氏體增加加速316在變形率的60%時馬氏體增加尚不明顯。

2、 Influence of processing deformation. During the cold spinning process of the head, the deformation of the material is relatively large, and the flanging part can reach more than 40%. According to the relevant data, the effect of cold working of Cr-Ni oil tank on the permeability results in that the content of martensite decreases with the increase of chemical composition and increases with the increase of cold working deformation rate. When the deformation rate of 304 and 321 is about 15%, the increase of martensite accelerates 316. When the deformation rate is 60%, the increase of martensite is not obvious.

三、焊接的影響。在等強度原則下選用焊接工藝焊接熱影響區的晶粒長大使其塑性下降焊接缺陷中的尖銳缺口在旋壓過程中被拉裂，都使其性能低于母材而首先產生裂紋。

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

在知道問題的根本以后，我們日常使用時注意這些情況，可以避免小型攪拌車封頭開裂。更多相關內容就來咨詢我們http://www.www.boy7up.cn吧！

After knowing the root cause of the problem, we should pay attention to these conditions in daily use to avoid cracking of the head of the small mixer truck. Consult us for more information http://www.www.boy7up.cn Come on!