Effects of sintering temperature and pre-treatment on ultrafine cemented carbides prepared by spark plasma sintering;
烧结温度和粉末预处理对SPS制备超细晶硬质合金的影响
This paper introduces the restraining effectiveness of the additive quantity of depressor VC and Cr3C2 on the crystal grain growth of the ultrafine cemented carbides.
本文主要介绍了VC和Cr3C2的添加量对超细硬质合金的晶粒长大抑制效果,绘制出了VC和Cr3C2的含量与合金的硬度和横向断裂强度之间的三维关系图,从此三维图中可以直观、方便地找到获得硬质合金优良性能的抑制剂优化成分范围。
Quality controll of the superfine cemented carbide in production run;
超细硬质合金生产过程中的质量控制
Raw materials,production technologies and equipments are the three key issues in the production of ultrafine cemented carbides.
超细硬质合金因为具有较好的综合性能 ,其应用领域正在不断扩大 ,因此超细硬质合金的研究是当前硬质合金研究领域的一大热点。
The specific surface area and green density of ultrafine cemented carbide powders (containing bridged particles) were studied before and after sedimentation separating and high energy shear milling by means of BET specific surface area analyzer and SEM.
采用沉降分离 ,高能剪切粉碎 ,比表面分析 (BET)和扫描电镜 (SEM)观察等手段研究了超细硬质合金粉末中的桥接团粒在分离 ,破碎过程中 ,松装密度和比表面的变化 ,研究和对比了常规湿磨、高速搅拌球磨、高速剪切粉碎对粉末成形致密化曲线的影响。
In view of the preparation of ultrafine cemented carbide by high energy ball milling,the action and its mechanism of surfactants in ball milling medium are introduced,the latest development of surfactants in the ball milling process of ultrafine cemented carbide is summarized,and the research trend of surfactants in this field is also pointed out.
针对高能球磨法制备超细硬质合金混合料的新技术,简述了在球磨介质中添加表面活性剂的作用及作用机理,总结了表面活性剂在硬质合金球磨工艺中的研究现状,并提出了今后的研究方向。
Powder injection molding(PIM)can fabricate superfine cemented carbides at a low cost with high dimension accuracy and high shape sophisticates,therefore more and more attention is focused on this technique.
粉末注射成形技术 (PIM )可以以低成本的优势制备超细硬质合金制品 ,制品尺寸精度高、形状复杂程度高 ,因此获得了越来越多研究者的关注。
Sintering behavior of ultra-fine grain cemented carbides with 0.2 μm-sized grain
0.2微米级超细晶硬质合金的烧结行为
Effects of VC and Cr_3C_2 Additions on Sintering Characteristic of Ultrafine Cemented Carbide
添加VC与Cr_3C_2对超细晶硬质合金烧结过程的影响
Effect of Inhibitor on Ultrafine Graened Cemented Cardedes;
晶粒长大抑制剂对超细硬质合金性能的影响
Effect of Inhibitors on Grain Size and Properties of Ultrafine Cemented Carbides
抑制剂对超细硬质合金晶粒度和性能的影响
Study of Ultra-fine Cemented Carbide Grain Growth Restrain Mechanism and Heat Treatment Technics;
超细硬质合金晶粒长大抑制机理及热处理工艺研究
Study of Ultra-fine Cemented Carbides Grain Growth Inhibitors Optimization and Sintering Process;
超细硬质合金晶粒长大抑制剂优化及烧结工艺的研究
The Evolution of Micro-structure of Ultra-fine Grain WC-Co Cemented Carbide Containing Cr_3C_2 During its Sintering Process
含Cr_3C_2超细晶WC-Co硬质合金烧结过程中微观组织结构的演变
Study of Submicron Grain Cemented Carbide in Low-pressure Sintering Technique;
亚微细晶粒硬质合金低压烧结工艺的研究
Effect of Pretreatment on Microstructure and Properties of Ultrafine WC-Co Cermets Sintered by Spark Plasma Sintering
预处理工艺对放电等离子烧结超细晶WC-Co硬质合金组织和性能的影响
Synthesis of WC-Co composite powder and its bulk material
超细硬质合金复合粉及块体材料的制备与表征
Experimental Investigation of Combined Ultrasonic and Electrochemical Micro-machining of Cemented Carbide
超声电解复合微细加工硬质合金试验研究
Study on Structure Property and Sintering Process of Superfine WC-TiC-Co Cemented Carbide
超细WC-TiC-Co硬质合金烧结工艺及组织性能研究
Designing on New Binders for Ultrafine Cemented Carbide Bar Extrusion Molding
一种新型超细硬质合金棒料挤压成形剂的设计
Estimation of Influence on Microstructure and Properties of Ultrafine WC-Co Cemented Carbide
WC-Co超细硬质合金微观结构对其性能的影响
Effect of Inhibitors on Microstructure and Properties of Ultrafine Cemented Carbide
抑制剂对超细硬质合金组织与性能的影响
Hard alloy, refractory metal, superhard alloy (diamond) products, etc.
硬质合金、难熔金属、超硬合金（金刚石）制品等。
An ultra fine cemented carbide with tungsten powder and binder cobalt.
一种由碳化钨和粘结金属钴组成的超细颗粒硬质合金。
Grinding performances on cemented carbides containing different sizes of grain
不同晶粒度硬质合金的磨削性能研究