首页>
外国专利>
PRODUCTION OF MEMBER OF TITANIUM BASE CARBONITRIDE ALLOY BY LIQUID PHASE SINTERING
PRODUCTION OF MEMBER OF TITANIUM BASE CARBONITRIDE ALLOY BY LIQUID PHASE SINTERING
展开▼
机译:液相烧结法生产钛基碳氮化物成员
展开▼
页面导航
摘要
著录项
相似文献
摘要
PROBLEM TO BE SOLVED: To obtain a titanium carbonitride base alloy of a high Ta content contg. Co as a binder by specifying the compsn. of hard components and executing sintering under the conditions in which a liq. binder phase is first formed on the center part of the member, and after that, it propagates to the outside toward the surface in the front edge part to be melted without generating a macrotic binder phase gradient.;SOLUTION: The atomic ratio N/(C+N) is, by atom, 25 to 50%, the content of Ta is 2%, preferably 4 to 7%, the content of W is at least 2%, preferably 3 to 8%, and the content of Co is 5 to 25%. Preferably, the porosity of the sintered member is ≤A06 class, preferably A04 class, and the pores are uniformly distributed through the whole of the volume without being concentrated on the center part of the sintered member. When increasing the temp. from the temp. of 1,250 to 1,350°C to the final sintering temp. of 1,370 to 1,550°C, the temp. increasing rate is preferably controlled to 0.5 to 5°C/min.;COPYRIGHT: (C)2000,JPO
展开▼
机译:要解决的问题:获得高Ta含量的碳氮化钛基合金。通过指定compsn作为粘合剂。硬质零件的制造,并在液化条件下进行烧结。粘结剂相首先形成在构件的中心部分,然后,在不产生大的粘结剂相梯度的情况下,向前边缘部分的表面扩散到外部,从而熔化。;解决方案:原子比N /( C + N)按原子计为25%至50%,Ta的含量为2%,优选为4%至7%,W的含量至少为2%,优选为3%至8%,Co的含量为5至25%。优选地,烧结构件的孔隙率为A06级,优选为A04级,并且孔在整个体积上均匀地分布而不集中在烧结构件的中央部分。当增加温度。从温度最终烧结温度为1,250至1,350℃。温度为1,370至1,550°C增加速度最好控制在0.5至5°C / min .;版权:(C)2000,JPO
展开▼