| 摘要 |
<p>Metal filter for a particulate trap meeting the requirements for low pressure drop, high collecting capacity and long life. The metal filters have one or more layers of unwoven fabric (such as felt) formed of a metal fiber having one of the following compositions A, B and C wherein A... Ni: 5-20% by weight, Cr: 10-40% by weight, Al: 1-15% by weight, the remainder being Fe and inevitable components; B... Cr: 10-40% by weight, Al: 1-15% by weight, the remainder being Ni and inevitable components; and C... Cr: 10-40% by weight, Al: 1-15% by weight, the remainder being Fe and inevitable components. The metal filter is highly resistant to corrosion and heat and can withstand to repeated heatings for removal of the particulate.</p> |
