硬質(zhì)合金密封環(huán)2硬質(zhì)合金是機(jī)械密封摩擦料中用量較多的硬面材料,使用范圍廣泛,耐磨性好,抗彎強(qiáng)度高,導(dǎo)熱系數(shù)高,膨脹系數(shù)小,是所有硬面材料中耐熱沖擊系數(shù)*高的材料.Tungsten carbide is widely used as seal faces with resistant-wearing high fractural strength, high thermal conductivity, small heat expansion co-efficient. It is the best material to resist heat and fracture in all hard face materials.硬質(zhì)合金(TC)物理性能參數(shù)TC physical property技術(shù)參數(shù)單位YWN6YWN8YG6YG8DYNT60Technical ParameterUnit WC%94929492 化學(xué)成份Ni%68 Composition Co% 68 密度g/cm314.5～14.914.4～14.814.6～1514.5～14.96.5～6.8Density硬度HRA88.58889.58990Hardness抗彎強(qiáng)度Mpa14901470142114701480Fractural Strength線膨脹系數(shù)10-6/K5.25.355.17.5Heat Expansion Co-efficient