磨减

However, POM/PEO interfibrillar segregation and the interspherilute segregation crystalline structures seem unfavourable for the toughness of the blends.5. PEO can improve the friction and wear properties of POM/PEO blends because PEO in the blend melts during friction and transfers to the friction surface, forming a lubricative layer.

磨痕宽度则先减小后增加，这是因为随PEO含量增加，其结晶结构发生了变化，无定形PEO与POM微纤晶穿插有利于减小磨痕宽度。6。

The molding and application properties of two kinds of highly lubricating polyoxymethylene materials, which were filled with polytetrafluoroethylene, Silicone oil and with PTFE, Pumbum powder, were studied systematically and overall in the article.

本论文较系统、全面地研究了POM／PTFE／硅油和POM／PTFE／铅粉两种高润滑POM材料的加工和使用性能，考察了POM、PTFE、硅油、铅粉等品种及用量对共混或复合材料流变特性和热稳定性、摩擦磨耗特性和力学性能的影响，探讨了这两种高润滑POM材料的润滑减磨机理。

Edge communications companies seamless steel pipe production line length of 400 meters, 100 meters wide by more than 300 sets of ancillary equipment, of which there is tube grinding, sawing equipment, tube furnace, piercing machine, rolling machine, stepper heating furnace, micro-stretch reducing mill, cooling bed, straightening machine, pipe cutting machine, testing machines, finishing equipment.

力通联公司无缝钢管生产线全长400米，宽100米，由300多套附属设备组成，其中有管坯修磨、锯切设备、管坯加热炉、穿孔机、轧管机、步进式加热炉、微张力减径机、冷床、矫直机、切管机、探伤机、精整设备等。

In this paper, firstly, the lubrication and wear-resisting mechanism of the surface with regular micro-structure is studied and the corresponding lubricated theory model is also developed. And then, use modified multi-grid method to solve the theory model, and cylinder wall surface micro geometry shape parameters are designed and optimized.

本文首先通过研究具有规则微观几何形貌表面的润滑、减磨机理，建立相应的缸套—活塞环摩擦副润滑理论数学模型，利用变异的多重网格法求解此数学模型，对缸套表面微观几何形貌设计参数进行优化匹配。

Keywords ceramic;sodium polyacrylate;deflocculant;grind additive;reinforcing agent

陶瓷； 聚丙烯酸钠；减水剂；助磨剂；增强剂

IT COMPOSES BOTH THE ADVANTAGES OF METALS AND NON-METALLIC AND BREA THE BOUNDS OF OIL LUBRICANTING,BRING ABOUT OILLESS SELF-LUBRI-BANTING,NOW IT IS WIDELY USED IN KIND OF MACHINES.

这种合理性的结合综合了铜合金和非金属减磨材料的各自互补优点，完全突破了一般轴承依靠油膜油脂润滑的界限性，实现了无油润滑，并能稳定可靠的应用在各种机械中。

The effect of activated ground gangue and fly ash on plasticizing efficiency of plasiticizers was also compared with that of other mineral admixture s.

研究了经活化处理并磨细的煤矸石及粉煤灰以不同比例等量替代部分水泥后，对掺减水剂水泥浆体流动度的影响规律，并将其与常用的矿物掺合料进行比较。

In recent years, various mineral admixtures such as fly ash, blast furnace slag, silica fume along with superplasticizers have been used to produce concrete with high strength and durability.

近年来，人们采用低水胶比，掺加粉煤灰、磨细矿渣和硅灰等矿物掺合料和高效减水剂的方法配制高强混凝土，但对高强混凝土的体积稳定性缺乏系统的研究，在工程实践中高强混凝土的收缩开裂问题也显得比较突出。

Grinding performance of metal bond diamond wheel for sapphire grinding and thinning was improved by introducing self-sharpening agent.

0引言金属结合剂金刚石磨具以下简称是我公司磨削和减薄蓝宝石实用的主要磨具之一。

Matte tablets with the role of the rapid infiltration of the skin, can wipe out foot stubborn Cuhou skin and dirt, remove the skin burden.

配合磨砂粒的作用，迅速渗透肌肤，能彻底清除足部顽固粗厚的角质和污垢，减除肌肤负担。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。