利索-全球专利检索

  1. 登录
  2. 注册
发明授权
CN101087670B 赛纶陶瓷刀片以及装备这种刀片的切削工具 有权

赛纶陶瓷刀片以及装备这种刀片的切削工具
摘要：
本发明提供一种使用寿命长的赛纶陶瓷刀片，其切削刃耐磨损，硬度高耐断裂。本发明还涉及一种装备赛纶陶瓷刀片的切削工具。提供的赛纶陶瓷刀片由包含赛纶陶瓷相的赛纶陶瓷烧结体制成，赛纶陶瓷相含有α-赛纶陶瓷和β-赛纶陶瓷，以及至少一种来自烧结助剂的元素，选自Sc、Y、Ce、Er、Dy、Yb和Lu，以氧化物计，其含量为0.5到5mol％。其中，表示α-赛纶陶瓷在赛纶陶瓷相中比例的α值为10％到40％；β-赛纶陶瓷具有0.2到0.7的Z值，其中Z是化学式Si6-zAlzOzN8-z的变量，并且0＜Z≤4.2；烧结体在室温到1000℃的温度下，具有3.5x10-6/K或者更小的平均热膨胀系数，在室温到1000℃的温度下具有10W/m·K或更高的热导率，以及一种含有装备赛纶陶瓷刀片的刀架的切削工具。
摘要（英）：

This invention provides a long-life Sialon insert, the cutting edge of which is resistant to wear and hard to fracture, and a cutting tool equipped with the Sialon insert. Provided are a Sialon insert made of a Sialon sintered body including a Sialon phase comprising an alpha-phase Sialon and a beta-phase Sialon, and at least one element, originating from a sintering aid, selected from the group consisting of Sc, Y, Dy, Yb, and Lu in an amount of 0.5 to 5 mol% in terms of an oxide thereof, wherein an alpha value, which shows the proportion of the alpha-phase Sialon in the Sialon phase, is from 10% to 40%; the betal Sialon has a value of Z from 0.2 to 0.7 wherein Z is a variable of the formula Si 6-Z Al Z O Z N 8-Z and within a range: 0 /K or less at temperatures of room temperature to 1000 DEG C, and a thermal conductivity of 10 W/m*K or more at temperatures of room temperature to 1000 DEG C, and a cutting tool comprising a holder equipped with the Sialon insert.

公开/授权文献
0/0