查询词典 hardness

The results show that the composite coating is metallurgically bonded to the substrate and the microstructure is fine and uniform. The hardness of the composite coating is up to 400 HV, which is 2.5 times that of the substrate. Under room temperature and oil lubrication condition, the sliding wear tests indicate the friction coefficient and weight loss of the composite coating are smaller than those of substrate. The worn surface of the composite coatings is much smoother than that of the substrate, without grooves and crater.

结果表明，复合材料涂层与基体形成良好的冶金结合，微观组织细小、均匀；复合材料涂层硬度达400HV，约为基体的2.5倍；在室温油润滑条件下，滑动磨损试验表明复合材料涂层摩擦系数和失重均小于基体，磨损表面划痕较浅且平滑，无明显的犁沟、粘着、剥落现象；激光表面合金化显著提高了材料的耐磨性。

Conductive electrodes can be deposited on metallic substrates by electrospark deposition process and a coating with excellent properties and metallurgically bonded with substrates can be produced to heighten the hardness and wear resistance of workpieces surfaces.

电火花沉积技术可以将电极材料沉积到金属基体表面，形成与基体冶金结合且具有优异性能的沉积层。用YG8电极棒为电极材料，进行了紫铜表面电火花沉积WC工艺试验研究，发现沉积效果在电压为60V、频率为200Hz、比沉积时间为2.8s/mm2时最好

In the research of metal ion self-crosslinking latex, a lot of experiments proved that when 6% MAA, 2% methylol acrylamide and 0.5:1 of molar ratio of Zn2+/COO- by adding zinc acetate to adjust were used, hardness of film reached 2H, water resistance gaind 96h longer and other characteristics measured up coating standard.

在对金属离子自交联乳液的研究当中，由大量的实验得知：当MAA含量为6％，N-羟甲基丙烯酰胺含量为2％的乳液，加入的醋酸锌使Zn~(2+)／COO~-摩尔比为0.5：1时，乳液涂膜后硬度达2H，耐水性达96h以上，其它涂膜性质符合漆类标准。

To meet the need of improving the welding quality, the microstructure and mechanical properties of the welded joints and the productivity, pure aluminum plate 99.60 is used in the experiment. Combined with micrographic analysis, the effects of electron beam welding on its mechanical properties ,such as strength, hardness and plasticity are studied in this paper.

本文针对应用越来越广泛的纯铝Al99.60，以及对其焊接质量、接头性能及生产率提出的新的要求，结合金相分析，探讨了电子束焊接对其强度、硬度、塑性等基本力学性能的影响规律。

The residual stress and the surface hardness of the AWJ milled surface are studied.

研究了磨料水射流铣削表面的残余应力和硬度变化。

The results show that Re-K-Zn compound modificator has remarkable effects in high Chromium white cast iron when the modificator has 0.5%Re+2.0%K+0.008%Zn. The modificator not only or bar-like carbides but also improved the mechanical properties of high chromium white cast iron,with its impact toughness enhanced from 7.0J/cm2 to 11.7J/cm2 and its hardness enhanced from 54HRC to 57HRC, and the wear resistance increased by 350%.

实验结果表明：Re-K-Zn复合变质剂在高铬白口铸铁中有显著作用，而且当三者的加入量约为0.5%Re+2.0%K+0.008%Zn时，能显著细化组织，使其组织中网状碳化物变为粒状或条状，提高了高铬白口铸铁的力学性能，铸态冲击韧性由原来的7.0J/cm2提高到11.7J/cm2，硬度由原来的54HRC提高到57HRC，相对耐磨性能提高了3.5倍。

Our products feature in environmental, moldproof, mothproof, durability and hardness, natural beauty, elegant and comfortable etc., applied in home and office decoration widely.

基于我们发展自身产品的特点，所有材料来自于高质量的毛竹。我们产品在环保。

In this article, three kinds of prealloy powder were developed by water atomization method. The base attribute, pattern, phase composition, differential thermal analysis of powder were researched. Sintered density, hardness, bend strength, Young's modulus were researched as hot pressed sintering temperature changing. By using abrasive wearing equipment upbuilt by the authors, the wear resistance were determined. Green-pressing density, simulated green-pressing strength and bonding momental of high frequency brazing were assayed. SEM corrosion structure and SEM appearance of fracture were observed.

本文采用水雾化法开发了三种预合金代钴粉末：对粉末的基本属性、形貌，粉末的相组成，粉末的差热性进行了分析研究；测定了它们的烧结密度、硬度、抗弯强度、弹性模量随热压烧结温度变化的规律；采用作者自行建立的磨料磨损试验方法，测定了它们的质量磨损百分率；测定了它们的冷压生坯密度、模拟生坯强度以及高频钎焊的结合力矩；观察了热压烧结SEM腐蚀组织和SEM断口形貌。

To enhance images, the plate is then fed into the warning to the processor unit, which will increase the energy of molecules, and have more monosomic cross-linking reaction occurs, the goal is to create long, as many as possible of the chain because the chain for the coating to provide hardness of preferences, and will affect the printed version in the business card printing machines have their life.

为了放松影像，印版置入到冲刷机的预热单位，这不兵为分子补充能量，并让单体爆发更众交联不正响，其纲的是创设尽不定不幼、尽不定众的链，因为链是为涂层供答硬量的不主给成分，并会感化印版在制卡机上的寿命。

The tomato yield of Shihezi is around 300 thousand tons, and the tomato is big, thin-skinned, thick-meat, little-juice, little-seed, high-quality, with the characters of thick meat, good hardness, no slip, store and transport resistance, the produced tomato juice is sweet and sour to eat, the taste is pure, and delicious, and the haematochrome contents are higher, while mucedine contents are lower, consistency is good, which is the reason it wins its honor; the Shihezi-origin tomato juice is listed in the leading group in the national quality evaluation of tomato juice in recent years, reflected in the good exports and sales.

石河子产番茄30万吨左右，所产番茄个大、皮薄、肉厚、汁少、籽少，品质优良，具有果肉厚、硬度好、不裂果、耐贮运等特点，加工成番茄酱酸甜可口，味道纯正鲜美，且以其红色素含量高、霉菌含量低、粘稠度好而闻名，近几年全国番茄酱质量评比中石河子产的番茄酱名列前茅，出口外销反映很好。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。