As we know, some manufactory would add a little TaC, which can improve alloy binder component for enhancing the wear resistance, toughness and strength. While it means that more cost and if add excessively, the results would reverse. After the addition of Ni, P in WC-Co cemented carbide can be formed Ni-Co-P, Ni-P and Co-P. The eutectic temperature of Co-P is 1020 degrees, the eutectic temperature of Ni-P is 880 degrees, and Co 1340 degrees lower than the melting point of 1495 degrees and WC-Co's. The main reason is that P atomic adsorption and segregation in Ni, Co particle surface, thereby reducing the energy of surface of Ni, Co particles. Therefore, such alloys in the liquid phase, and it makes early appearance dissolution and precipitation and the formation of the skeleton of solid particles also occurred in advance to make the process more fully sintered at a relatively low temperature. So it can effectively accelerate the speed of hard densification and improve the performance of tungsten carbide button.
Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn