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不鏽鋼配件的性能
[作者:aowl] [日期:18-05-05] [瀏覽次數:] [來源:http://www.mobiinet.com]
首先ag8亚游看一下不鏽鋼配件的抗拉強度,不鏽鋼配件的抗拉強度比同樣基體的鋼低得多。主要就是因為本身強度很低,有部分產品的原料存在割裂了基體的連續性,且在其尖端處會產生應力集中。 然後就是延伸率,不鏽鋼配件在拉伸試驗中測出的延伸率楚很小的,一般在0.2%--0.7%之間,這說明不鏽鋼配件是一種脆性材料。 還有就是硬度和抗壓強度,不鏽鋼配件中的硬度和抗壓強度主要取決於組織中基體本身的硬度和抗壓強度,不鏽鋼配件中的抗壓強度一般比其抗拉強度高出3--4倍,布氏硬度值與同樣基體的正火鋼相近。 接下來就是不鏽鋼配件的切削性能,不鏽鋼配件有相當好的切削性能,加工過程中石墨成為很好的潤滑劑,減少刀具磨損,降低切削阻力,切削過程中切屑破碎容易,加工表麵質量好。 還有就是不鏽鋼配件的消振性能 不鏽鋼配件的消振性能也是不鏽鋼配件得到廣泛應用的原因之一.由於石墨吸收大量的振動能量,在防止產生共振和避免振動的—些場合經常選擇不鏽鋼配件。 還有就是不鏽鋼配件的鑄造性,由於不鏽鋼配件的化學成分接近於共晶成分,所以鋼水的流動性好,可以鑄造非常複雜的零件.而且因為配件在凝固過程中會析出比容較大的石墨,從而減少其收縮率。 最後一個性能就是焊接性,不鏽鋼配件的焊接性很差,應該說不鏽鋼配件不適合焊接。 First of all, let's take a look at the tensile strength of stainless steel fittings, and the tensile strength of stainless steel fittings is much lower than that of the same matrix steel. The main reason is that the strength of the product is very low, and the raw material of some products is lacerating the continuity of the matrix, and the stress concentration at its tip will result. Then the extension rate, the elongation of stainless steel fittings in tensile tests is very small, usually between 0.2%--0.7%, which indicates that the stainless steel fittings are a brittle material. It is also the hardness and compressive strength. The hardness and compressive strength of stainless steel fittings are mainly determined by the hardness and compressive strength of the matrix itself. The compressive strength of the stainless steel fittings is 3--4 times higher than the tensile strength, and the Brinell hardness is similar to the normal steel. The following is the cutting performance of stainless steel parts. The stainless steel parts have good cutting properties. In the process, graphite becomes a good lubricant, reducing tool wear, reducing the cutting resistance, cutting the chips easily in the cutting process, and the quality of the machined surface is good. The vibration suppression performance of stainless steel fittings is also one of the reasons for the wide application of stainless steel fittings. Because graphite absorbs a lot of vibration energy, it often chooses stainless steel fittings in preventing resonance and avoiding vibration. It is also the casting of stainless steel fittings, because the chemical composition of the stainless steel fittings is close to the eutectic composition, so the liquid steel has a good fluidity and can make very complex parts. And because the fittings will precipitate larger graphite in the process of solidification, thus reducing the shrinkage. The last performance is weldability. The weldability of stainless steel parts is very poor. It should be said that stainless steel parts are not suitable for welding.

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