查询词典 fiber graphite

The wear mechanisms of the graphite pairs were examined based on the original image before and after sliding, the result shows that under air media, the graphite pairs works on the conditions of boundary lubrication and the wear mechanism is dominated by adhesion and plough wear, which is dominated by slightly plough wear under water environment.

磨损表面原始形貌对比分析表明，在空气中，摩擦副表面处于边界润滑状态，主要磨损机制是粘着磨损和犁削；水润滑条件下为轻微犁削；油润滑条件下，摩擦副表面处于为边界润滑和流体润滑状态，油中的减摩剂对试样表面有抛光作用。

Zirconia/graphite compound mold core was prepared by the coating, in which the silicon sol was used as binder and zirconia was used as refractory materials. The application feasibility of metal particles as a coolant in the solidification process was studied, and the application of metal particles as subsidiary coolant in the liquid metal cooling of directional solidification were analyzed and studied in this investigation. The conclusions can be drawn as follows: 1 The zireonia/graphite compound cores fabricated by brushing coating which was prepared by making silicon sol agglutinated zirconia as a refractory material were casteded at 800℃and 1000℃respectively, and the results show that the strength of the mold core is strong enough to meet the requirement of practical casting.

本文研究了以硅溶胶为粘结剂，氧化锆为耐火材料来制备氧化锆／石墨复合型芯的制备工艺；并分析了金属颗粒作为冷却剂在金属凝固过程中应用的可行性、金属颗粒的冷却能力以及金属颗粒作为辅助冷却剂在定向凝固的液态金属冷却法中的应用，得出以下结论：(1)以硅溶胶为粘结剂，氧化锆为耐火材料来配制涂料，采用刷涂石墨型芯的方法来制备的氧化锆／石墨复合型芯经800℃和1000℃实际浇铸实验，结果证明型芯的强度足够满足实际浇铸要求。

Different graphite materials are available for graphite fluxing tubes for ...

自2004年在上海创立以来，以为客户创造价值为己任。。。

We are the stare-ownde nominated producing factory of Metallurgical Deparlment and we are the only factory which produces graphite electrode production in 1971,There are advanced graphite electrode production line,macerating technology in high pressure and perfect ways of product-ion inspection at present.

我厂是原冶金部定点的国营碳素制品生产厂家，是天津市唯一生产石墨电极的工厂。本厂于一九七一年投产，有三十多年的是生产史。目前具有先进水平的石墨电极生产线和高压浸渍工艺，设有完善的生产检验手段。

A micro-hollow paraffined graphite electrode was developed by electro-oxidation of a paraffined graphite electrode.

但是这种吸附方法，可能会导致DNA在电极表面的堆积比较密集，这作为DNA生物传感器来说，会影响杂化。

The heat conductivity of material improves rapidly by the content of the graphite increasing,and the heat conductivity preponderates over 1.7 w/ when the content of graphite is 5% in the material .

材料的热导率随着石墨粉含量的增加几乎成直线上升，当石墨含量为5%时材料的热导率大于1.7W/。

The electrolyte volatilizes and condenses in the aperture in anode, then partly hydrolyzes and dewater, then the stress are produced by expansion in this process. The expansion stress is the dominant cause of the graphite anode damage, and the oxidation of the active graphite particles on the anode surface is subsidiary for the anode damage. The measures of prolonging the anode service life are to enhance the quality of the anode such as increasing the forming pressure in the preparation and surface treatment before application.

认为石墨阳极的破损主要是由于石墨阳极中有比较多的孔隙，其中挥发进入石墨阳极表面孔隙的电解质吸水水解、脱水等过程发生膨胀，使周围的石墨颗粒应力不平衡而发生破损；其次是由于石墨阳极孔隙中活性高的石墨颗粒氧化。

On the base of natural graphite, the influences of the adhesive agent and conductor are investigated. The results show that, when the adhesive agent is 8% and acetylene black is 10%, the reversible capability of the natural graphite can reach the highest value (330mAh/g).

以天然石墨的嵌锂性能作为基础，通过调节粘结剂和导电剂的含量，当粘结剂的质量分数为8％，乙炔黑的质量分数为10%时，石墨的可逆容量达到最高的330 mAh/g，10次循环容量保持在92％左右。

Since there are real demands to the fine powder of expansible graphite in the market, it was studied that glacial acetic acid were inserted into 2μm5μm micro-graphite using potassium dichromate, potassium permanganate, or ammonium persulphate as oxidant and acid as medium to get FPEG low expansible volume successfully.

针对目前对低膨胀容积的可膨胀微粉石墨的实际需求，本论文研究了在酸性条件下，以重铬酸钾、高锰酸钾或过硫酸铵为氧化剂，成功地将冰醋酸插入2μm5μm石墨层间，制得低膨胀容积的可膨胀微粉石墨。

Cathode Spot Movements and Chopping Current of Pure Graphite and Copper-Graphite in Vacuum.

纯石墨和铜-石墨的阴极斑点与截流值研究。

It's not quite as simple as that.

并没有那么容易。

It debuted in 1992 in Japan and the United Kingdom, and 1993 in the United States.

它首次亮相于1992年在日本和英国，在美国1993年。