查询词典 refractory material

2Nd, thorough analysis: The Earth may say is an extremely marvelous thermonuclear reactor, when the earth interior pressure achieved certain critical, in the Earth material may decay the nuclear matter is called as the thermonuclear material, can have the thermonuclear reaction, thus has the huge energy, then the melted partial materials, form the rock magma are the liquid state materials, this response stratification plane is possibly many stratification planes, first possibly is located between the earth's crust and the mantle, upward next two transfers, displays for the light density material diastrophism as well as density upper mantle material phenomena and so on solidification; Under second possibly is located between the mantle and the core, the pressure is more formidable, causes not not easily to have the thermonuclear reaction thermonuclear material to have the response, forms the relative quite stable liquefied material level, simultaneously is upward next two transfers, forms the counter-flow phenomenon which the high density under mantle as well as the high density core material contact liquefies and is far away cools; These material periodicity regular movements and so on convection as well as Earth polar axis rotation are possibly the basic source powers which the terrestrial magnetic field produces.

深入剖析：地球可以说是一个非常奇妙的热核反应堆，当地球内部的压力达到一定的临界，地球物质中可衰变的核物质统称为热核物质，就会发生热核反应，从而产生巨大的能量，进而融化部分物质，形成岩浆即液态物质，这个反应层面可能是多个层面，第一层可能位于地壳与地幔之间，向上下两边对流，表现为轻密度物质的地壳运动以及中密度上地幔物质的固化等现象；第二层可能位于下地幔与地核之间，压力更为强大，引起不易发生热核反应的热核物质发生反应，形成相对比较稳定的液化物质层，同时向上下两边对流，形成中高密度的下地幔以及高密度地核物质的接触液化和远离冷却的对流现象；这些对流以及地球极轴自转等物质周期性规律性运动可能是地球磁场产生的根本源动力。

A method of production of a reduction resistant dielectric ceramic composition having a superior low frequency dielectric characteristic and further improved in accelerated lifetime of insulation resistance, specifically a method of production of a dielectric ceramic composition containing a main component including a dielectric oxide of a specific composition, a first subcomponent including a V oxide, a second subcomponent containing an Al oxide, a third subcomponent containing an Mn oxide, and a fourth subcomponent containing a specific sintering aid in a specific ratio, including a step of mixing at least part of the materials of the subcomponents excluding one or both of at least the material of the third subcomponent and material of the fourth subcomponent with the starting materials prepared for obtaining the material of the main component to prepare the pre-reaction material, a step of causing the prepared pre-reaction material to react to obtain a reacted material, and a step of mixing the materials of the subcomponents excluded when preparing the pre-reaction material with the obtained reacted material to obtain a dielectric ceramic composition.

本发明提供一种介电陶瓷组合物的制造方法，其中介电陶瓷组合物以特定的比例含有如下成分：含有特定组成的介电体氧化物的主成分，该主成分可以提供具有优异的低频率介电特性的、绝缘电阻的加速寿命进一步提高的耐还原性介电陶瓷组合物的制造方法，含有V氧化物的第1副成分，含有Al氧化物的第2副成分，含有Mn氧化物的第3副成分，以及含有特定的烧结助剂的第4副成分；该方法包含如下工序：将至少除去第3副成分的原料和第4副成分的原料的一种或两种的其它副成分原料的至少一部分，与为了得到主成分原料而准备的起始原料混合，准备反应前原料的工序；使准备的反应前原料反应而得到反应后原料的工序；以及在所得的反应后原料中，混合在准备反应前原料时除去的副成分原料，得到介电陶瓷组合物原料的工序。

The main products are: all kinds of industrial furnace regenerator with cordierite, mullite, high alumina, corundum honeycomb, and various materials and specifications of the regenerator the ball, and with regenerator tile block; all kinds of industrial furnace series×, corundum brick, clay brick, lightweight insulation materials, heat insulation brick light weight, low-iron mullite brick, silica brick, magnesia brick, aluminum MgO-C Bricks, magnesia-chrome brick, chrome Corundum bricks, a steel trough brick slipway and a variety of refractory materials such as sizing the outlet; all kinds of industrial furnaces with wear-resistant castables, low cement castable high-strength, impermeable material, gravity feed can be plastic, refractory clay, such as amorphous material; a variety of wear-resistant ceramic materials: ceramic lining, grinding balls, ceramic pipes, ceramic cylinder liner, piston, valves and other ceramics.

主要产品有：各种工业炉蓄热室用堇青石质、莫来石质、高铝质、刚玉质蜂窝体以及各种材质和规格的蓄热球，并配有蓄热体挡板砖；各种工业炉用系列高铝砖、刚玉砖、粘土砖、轻质保温材料、轻质隔热砖、低铁莫来石砖、硅砖、镁砖、铝镁碳砖、镁铬砖、铬刚玉砖、出钢槽滑道砖以及各种定径水口等耐火材料；各种工业炉用耐磨浇注料、低水泥高强浇注料、防渗料、自流料、可塑料、耐火泥等不定形材料；各种材质的耐磨陶瓷制品：陶瓷衬板、研磨球、陶瓷管道、陶瓷缸套、柱塞、陶瓷阀门等。

The company has formed a complete production-chain that takes briquettes, form coke, ore powder ball press machine, desulfurized gypsum ball press machine, dry powder ball press machine as main products and vibrating screen, rotary dryer, vibrating feeder, etc.as supplementary products, this machine used in powder coal ash processing , coal slurry, desulfurized gypsum, dust coke , iron ore fines , iron scale, refractory material and so on, it is widely used in electric power, metallurgy, chemical, refractory material industry.

公司形成了以型煤、型焦、矿粉压球机、脱硫石膏专用压球机、干粉压球机等系列产品为主，振动筛、烘干机、给料机等配套设备为辅的完整生产链。

Finally, the writer combined the paper with the request of our country"s current education development to the new period teaching material reforms, concern with the future of our country"s teaching material reforms of chemistry, put forward several suggestions about our country"s teaching material reforms of chemistry: The spirit of teaching material should return to human; teaching material target should more characterful, socializing and more popular; the developing in the flexibility of the teaching material contents ; teaching and learning method"s type in the book should be investigable, cooperant and interactional; teaching material"s diversification"s and modernizations trend etc.

最后，笔者结合目前我国教育发展对新时期教材改革的要求，关注于我国基础教育中的化学教材改革的未来，提出了对我国高中化学教材改革方向的几点展望：教材编制指导思想的&人本化&发展；教材教学目标中的素质化、社会化、大众化的转变；教材内容的弹性化发展；教材的教法、学法的探究式、合作式、互动式转变；教材载体的多元化、现代化趋势等等。

As is now well known,foundry coating is consist of 5 kinds of basic components such as carrier material,refractory fillings, defocculaing aent, binding agent and accessorial addition agent. In which the refractory fillings is its main components that it decides the refractoriness,chemical stability, diathermancy of the coating ,simultaneously it influences also the gas permeability,sinter delaminating property of the coating.

众所周知，铸造涂料是由载体，耐火填料，悬浮剂，粘结剂和辅助添加剂五种基本组分组成，其中耐火填料为主要组分，它决定着涂料的耐火度，化学稳定性，绝热性，对涂料的透气性，烧结剥离性也有重要影响。

As is now well known,foundry coating is consist of 5 kinds of basic components such as carrier material,refractory fillings, defocculaing aent, binding agent and accessorial addition agent. In which the refractory fillings is its main components that it decides the refractoriness,chemical stability, diathermancy of the coating , simultaneously it influences also the gas permeability,sinter delaminating property of the coating.

众所周知，铸造涂料是由载体、耐火填料、悬浮剂、粘结剂和辅助添加剂五种基本成份组成，其中耐火填料为主要组分，它决定着涂料的耐火度、化学稳定性、绝热性，对涂料的透气性、烧结剥离性也有重要影响。

The large amount of microporosity in calcium hexaluminate insulating refractory keeps its thermal conductivity at low levels from room temperature to 1 500 ℃,which makes calcium hexaluminate insulating refractory as a unique novel insulating material.

六铝酸钙(CA6)隔热耐火材料有着大量的微米级气孔，故其热导率从室温至1500℃均保持在较低水平，这使其成为一种独特的新型隔热耐火材料。

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。

In this research,by way of the static state erosion experiment,and many kind material test means,three kinds of refractory erosions condition and the changes of CAS glass ceramic structure and performance have been discussed in detail. This paper has gained the full accurate data of large numbers,and has found out the influence level and law of different kind refractory and different erosions measuring to glass ceramic structure and performance.

本研究通过进行耐火材料在CAS微晶玻璃中的的静态侵蚀实验，运用多种有效的材料测试手段，深入研究了粘土、白泡石、锆刚玉等三种常用耐火材料的侵蚀状况及CAS系统微晶玻璃结构及性能产生的变化，获得了大量详实的数据，探讨了不同种类耐火材料、不同侵蚀量对微晶玻璃结构及性能影响的程度和规律。

This matter overthrew all basises I learned from Sunday school .

这件事把我从周日学校学到的所有道理都颠覆了。

It's one of the cruel ironies of aging: if you want to remember your favorite restaurants, the less you should eat at them.

这是一个老化的残酷讽刺：如果你想记住你最喜欢的餐馆，你应该更少吃到它们。