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- Coarse,medium and fine WC powders are used for tests at different ball percentage and milling time. 试验中采用粗、中、细3种碳化钨粉末进行了不同球料比、不同球磨时间的试验。
- 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。
- The ultra fine WO 3 powder was prepared by colloidal chemistry method, sol gel and polymerized complex method. 通过胶溶法、溶胶凝胶法、聚合络合法合成了超细三氧化钨粉体。
- Most filters use an ultra fine mesh to support a thin layer of filter powder (made from diatomaceous earth and activated clays). 大多数过滤器使用一超细网格支持薄薄的过滤器粉(由硅藻土和活性粘土)。
- The submicro W and WC powder can be produced by using of violet tungstic. 用紫钨可以生产出亚微米级的钨粉和碳化钨粉。
- Ultra fine particles (UFP) are normally defined as micronized particles. 根据用途不同,超微颗粒通常定义为微米级或者纳米级颗粒。
- In this paper, transparent polycrystalline spinel is fabricated by sintering or hot pressing highly pure ultra fine spinel powder in vacuum,then hot isostatic pressing (HIP) the sintered body. 报道了采用高纯、超细的尖晶石粉末作为起始原料,分别用真空热压烧结和真空烧结结合热等静压法制备各种形状透明多晶尖晶石的技术;
- Study is made of the vibrating ball miling for ultra-fine WC powder preparation. 对振动球磨法制取超细碳化钨粉末进行了研究。
- The result shows that, the ultra fine coal gangue powder is not only a good reinforcing filler of NR but also has good property of dispersion.Coal gangue powder modified by ENR has bett... 试验结果表明,超细煤矸石粉对NR具有较好的补强性能和分散性。
- In 1958, Ganzhou Concentration Plant was established and started its production. After 1963, tungstic acid, APT, W powder, WC powder and cemented carbide could be produced too. 1958年,赣州精选厂建成投产。1963年以后,进一步发展到生产钨酸、钨酸钠、仲钨酸铵、钨粉、碳化钨粉、硬质合金等。
- Production of powder and pressing sinter are the key to the Production of ultra fine cemented carbides ,and the growing of crystals occurs in the process of sinteing of ultra fine cemented carbides. 生产超细硬质合金的关键是粉末的制备和压坯的烧结,并且超细硬质合金在烧结过程中容易引起晶粒长大。
- The reason of come into existence coarse particle in WC powder and the controlbe method are also analysed and studied in this paper. 文章还对WC粉的夹粗原因及其控制等方面进行了分析和研究。
- In this paper,recent development and application of nano-structured WC powder are described and the existing problems are discussed. 本文对近年来纳米碳化钨粉的研究和应用发展动态进行了归纳和评述,并对存在的问题提出了一些见解。
- Special ultra fine sub micron grade for high speed milling especially for mould making. 特别适合高速铣削的晶粒度为超细的牌号,特别适合模具制造。
- Modified EPDMs of different hardness were prepared by adding some ultra fine fillers into them, then blended with PP. 加入超细改性无机刚性粒子提高三元乙丙橡胶(EPDM)的硬度,再与聚丙烯(PP)进行共混。
- Some suggestions are provided on deve loping ultra fine fibre man made leather in our country. 对超细纤维人造革的生产工艺技术和产品性能做了一些介绍,并对我国发展超细纤维人造革产品提出了一些建议。
- In recent years,appended Inhibitors in ultra fine cemented carbides are studied at home and abroad. 近几年以来国内外对超细硬质合金中添加抑制剂进行了大量的研究。
- A novel reactive precipitation process was used to prepare ultra fine salbutamol sulfate powders. 以沙丁胺醇和硫酸为反应物,在异丙醇溶液中采用反应结晶法制备超细硫酸沙丁胺醇颗粒。
- The results show that violet tungsten is a suitable raw material for synthesizing ultrafine W powder using the conventional method.The W and WC powders pr... 结果表明:采用传统的工艺方法,紫钨适宜于制备超细颗粒钨粉,以紫钨为原料制备的W粉及WC粉末其物理性能均优于原料为蓝钨的产品。
- The developing trend of the high emissive coatings will be ultra fine and ultra thin,compositely compo nential and multi-functional. 高温辐射涂料今后将向着超细超薄化、成分复合化、功能多样化的方向发展。