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      立式銑床墊鐵為什么會損壞原因分析

      時間:2020-08-26 21:55 點擊次數:

      立式銑床上用的墊鐵一般使用HT250灰鑄鐵。HT250灰鑄鐵強度、耐磨性、耐熱性均較好,減振性良好,鑄造性能較優,需進行人工時效處理??捎糜谝蟾邚姸群鸵欢臀g能力的泵殼、容器、塔器、法蘭、填料箱本體及壓蓋、碳化塔、硝化塔等;還可制作機床床身、立柱、氣缸、齒輪以及需經表面淬火的零件。因其受熱變形量較小,常使用于高溫場合。

      銑床墊鐵損壞無非就三個原因:第一是,超負荷,第二是質量不行,第三是安裝過程不當。針對這三個原因我們來具體看一下。先看,超負荷。墊鐵本身承受的重量是有限的,如果所需安裝的立式銑床的重量遠遠超過了墊鐵的承受能力,墊鐵就很容易損壞。再來說,質量問題。墊鐵本身的質量不合格,由于材質差的原因無法達到所能承載的額度。安裝過程不當。立式銑床安裝時一定要充分考慮受力,當受力不平衡時墊鐵所承載的重力不均勻也很容易使其損壞。

       

       

      HT250 gray iron is generally used as pad iron for vertical milling machine. HT250 gray cast iron has good strength, wear resistance, heat resistance, good vibration damping and casting performance, so it needs artificial aging treatment. It can be used for pump shell, vessel, tower, flange, stuffing box body and gland, carbonization tower, nitration tower, etc. it can also be used to make machine tool bed, column, cylinder, gear and parts requiring surface quenching. Because of its small thermal deformation, it is often used in high temperature occasions.

      The third reason is that there is no iron pad installed properly. For these three reasons, let's take a specific look. First of all, overload. The weight of the pad iron itself is limited. If the weight of the vertical milling machine to be installed far exceeds the bearing capacity of the pad iron, the pad iron will be easily damaged. Let's talk about quality. The quality of the pad iron itself is not up to standard. Due to the poor material, it can not reach the capacity. Improper installation process. When the vertical milling machine is installed, the force must be fully considered. When the force is unbalanced, the uneven gravity of the pad iron is easy to damage.

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