硬质合金

The present invention is characterized in that the ammonium metatungstate powders and the cobltic-nitrate powders are respectively dissolved in the water and scattered in the liquid nitrogen to be pre-frozen using a nitrogen spray gun after being mixed and defecated, and then are placed in a freezedryer to be dried vacuumly and finally the powders are obtained. The nanometer powder i.e. the nano tungsten-cobalt composite powder is obtained by reducing the freeze-dried mixed powder in the atmosphere of hydrogen.

该微晶硬质合金的制备方法特征为：将偏钨酸铵粉末与硝酸高钴粉末分别溶于水中，混合澄清后使用氮气喷枪，将其分散在液氮中预冻后置于冻干机中进行真空干燥得到粉末；在氢气气氛中对冻干的混合粉末进行还原得到纳米粉体，即钨钴纳米复合粉体。

The hardness of HSS roll was over 66 HRC, the depth of hardened layer excesses 30 mm, the variation of hardness in the roll surface was smaller than 1.5 HRC, and the wear resistance of HSS roll was better than that of high chromium cast iron roll and high nickel chromium indefinite hilled cast iron roll, close to that of powder metallurgy hard alloy roll.

研制出的高速钢轧辊硬度超过66HRC，淬硬层深度超过30mm，辊面硬度差小于1.5HRC，耐磨性优于高铬铸铁和高镍铬无限冷硬铸铁轧辊，接近硬质合金轧辊。

Premiering in November 2001 , 24 set the television landscape on fire as one of the best new series and cemented its position as a pop culture phenomenon .

在2001年11月24日，一套电视景观的防火作为其中一个最好的新系列和硬质合金其立场，作为一个流行文化现象。

For grinding of materials with high hardness ,such as carbide ,glass,agate ,ceramics,ect.

适用于各种高硬材料的磨削。如硬质合金、玻璃、玛瑙、陶瓷等。

For example, use the diamond grinding tool to process the hard alloy as well as the ceramics, the agate, the optical glass, the semiconducting material, the stone material, the concretes and so on nonmetallic material and the non-ferrous metal and so on; use the cubic boron nitride grinding tool to Process the tool steel, the molding tool steel, the stainless steel, the heat-resisting alloy and so on, especially to processes high vanadium high-speed steel, may obtain satisfied processing effect.

例如，用金刚石磨具加工硬质合金以及陶瓷、玛瑙、光学玻璃、半导体材料、石材、混凝土等非金属材料和有色金属等；用立方氮化硼磨具加工工具钢、模具钢、不锈钢、耐热合金等，特别是加工高钒高速钢等黑色金属，均可获得满意的加工效果。

And where the ZX 800's reflective forefoot patterns cemented the design's appeal, here, all the blue of the upper shines in the right light, completed by a neoprene material application and a logo lace jewel for an intelligent moment of reflection on the shoe's undeniable impact on UK subcultures.

而zx 800的反射forefoot模式硬质合金设计的上诉，在这里，所有的蓝色上的光芒在右边的光线，完成了由一名氯丁橡胶材料的应用和徽标花边的宝石，为一种智能的时刻，反思对擦鞋的，无可否认的影响英国亚。

It is widely used in the procession of auto, aircraft, spaceflight, electrical engineering,compressor, heavy industry, ceramics,bearing and gear wheel etc.

由于其性能和使用寿命远远大于传统的陶瓷刀具和硬质合金刀具，因此在汽车、航空航天、电机、压缩机制造、重工业以及陶瓷、轴承、齿轮等行业的加工中都将得到广泛的应用

This company mainly produces the overall quality hard alloy milling cutter, drill, reamer, center drill, graver, Ling-tooth milling cutter, dovetail milling cutter, ladder drill, PCD insert carbide cutting tools and various non-standard cutting tools such as Product mainly used in molds, models, Auto, aviation, electronics, advertisement production, woodworking furniture and other industries.

本公司主要生产整体硬质质合金铣刀，钻头，铰刀，中心钻，雕刻刀，菱齿铣刀，燕尾铣刀，阶梯钻，PCD刀具及各类镶硬质合金非标刀具等，产品主要应用于模具，模型，汽摩，航空，电子，广告制作，木工家具等行业。

Carbide alloy electric hammer drill, router bit, chisel, diamond wheel, brad-nailer, electric hammer, demolition hammer, hole saw.

1F72 硬质合金电锤钻头，木工铣刀，钢凿，金刚石锯片，汽钉枪，电锤，电镐，开孔器等。

In order to solve the existing problems of drilling gravel and cobble stratum,common tungsten carbide-insert drill bits, composite diamond-tungsten carbide button bits and impregnated diamond-tungsten carbide bar bits were designed and tested successively.

针对卵砾石地层的钻进实践，先后设计与试验了三种类型的钻头；普通八角合金钻头、金刚石-硬质合金复合球齿钻头与孕镶金刚石-针状合金复合式钻头。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。