particle-to-particle sintering 中文意思是什麼
particle-to-particle sintering
解釋
粉粒與粉粒間的燒結-
( 2 ) the properties of the material with finer andalusite particle size are superior to those of coarse particle size at lower temperature, but properties of material of fine and coarse particle size have little difference at higher temperature. this illustrates that the andalusite particle size can lower the sintering temperature and that it brings forth not remarkable influence on the property of the material when the material is sintered completely
（ 2 ）對于不同粒度的原料，在燒成溫度較低的情況下，粒度小的材料性能明顯高於粒度大的材料，但在燒成溫度較高的情況下，兩者差別不大，說明原料粒度減小能降低製品的燒結溫度，但在制品均完全燒結的情況下對材料性能影響不大。 -
The microwave magnetic sintering can not only lower the sintering temperature and shorten the sintering time, but also decrease the micro - grain size of magnets and make intergranular phase and grain boundary of main phase distributed well. the abnormal grain growth was found in conventional sintered ndfeb magnets, which may be due to the greater particle size and uneven distribution of powder, and higher sintering temperature and longer sintering time. of course, the abnormal grain growth would deteriorate the magnetic properties
微波磁場燒結的不但降低燒結溫度，縮短燒結時間，而且使磁體整體加熱，受熱更均勻，因而磁體晶粒更細小，並且主相晶粒邊界趨于規則化，晶間相的分佈更均勻；在常規燒結的磁體中則出現了晶粒異常長大現象，造成這一現象的原因，一方面可能是燒結溫度過高或燒結時間過長，另一方面可能是磨製的粉體均勻性較差，存在的大顆粒被許多細小顆粒包圍，在燒結過程中，大顆粒不斷吞併小顆粒，逐漸長大，而異常長大的晶粒自然會導致磁體性能的惡化。 -
It was discovered that the reaction on particle and pore surface was fiercely influenced by sintering temperature, and reaction products and their morphology and distribution related to the mechanical properties of materials
研究發現顆粒表面和孔隙表面的化學反應受緻密溫度的強烈影響，材料的力學性能與表面化學反應產物及其形態和分佈有關。 -
The conclusions are as follows : ( 1 ) high - pressure water - atomization can be used to produce a pre - alloyed steel powder with high apparent density, high green strength, size - stability after sintering and low hydrogen - loss content ; ( 2 ) the higher smelting temperature and / or water pressure, the finer particle size of steel powders ; ( 3 ) when the atomization angle holds in a reasonable value ' s range the obtained powder will have a better particle size distribution ; ( 4 ) an optimum atomization technological parameters : liquid steel flux, water pressure and water prick angle was obtained ( 5 ) reduction variables ( temperature, holding time, material - bed ' s thickness and reducing gas flux ) have a significant effect on the particle agglomeration and properties of final powder was given ( 6 ) different alloying methods were developed to modify properties of ferrous powder materials and hence to broaden its applications in ferrous powder metallurgy industry
本文系統研究了水霧化預合金鋼粉生產工藝及合金化方法對鐵基粉末冶金材料性能影響，詳細研究了冶煉、霧化、還原工藝參數對預合金鋼粉化學成份和物理性能影響，並得出如下結論： （ 1 ）採用高壓水霧化技術可用於生產高密度、高強度、尺寸穩定性的低氫損含量的水霧化預合金鋼粉。 （ 2 ）冶煉溫度越高，高壓水壓力越大，所得生粉顆粒粒度越細。 （ 3 ）水錐角調整在一個適當角度范圍內可獲得粒度組成較好的生粉。 -
The recent research status on tungsten heavy alloys was reviewed. the methods to improve the properties of tungsten alloys, including the changes of tungsten particle size, component, content of matrix and the improvements of sintering technics, were also discussed in details. at the same time, some advanced overseas penetrators were introduced and research directions of tungsten alloy materials were pointed out in this paper
主要介紹高密度鎢合金穿甲彈材料侵徹性能的國內外研究發展狀況，從改變合金中鎢顆粒性質、粘結相組成與含量，以及結合工藝改善的角度，總結目前國內外改善高密度鎢合金侵徹性能的主要途徑，並對當前國外先進鎢合金穿甲彈產品的材料成分、制備工藝及侵徹效果進行了簡要介紹和分析;同時針對國外穿甲彈的研究概況和發展趨勢，提出我國今後研究和開發新型高侵徹性能鎢合金穿甲彈的主要研究方向。 -
During the laser sintering, due to the large liquid phase viscosity and surface tension, the balling effect occurred when the molten did not wet the solid metal particle and the underlying substrate
實驗發現，在液相粘度較高、表面張力大，熔體材料不浸潤固相顆粒和基板等因素的影響下，燒結過程中出現了球化現象。
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