燒結成的 的英文怎麼說
中文拼音 [shāojiēchéngde]
燒結成的
英文
assintered-
We also attainted mosi2 / sic composite by using melting mosi2 infiltrated sic body which shaped by sic powder. the result show that the diameters of sic particle and shaping methods have effect on the composite ' s microstructure and properties
另外,嘗試了用mosi _ 2在2050下浸滲直接由sic粉體成型的坯體制備mosi _ 2 / sic復合材料。採用sic顆粒的級配有利於提高坯體密度,但是降低燒結體的緻密度。The simulation results suggest that, at the end of the scanning line, the dissymmetric temperature field and the great temperature gradient result in the balling phenomenon and great thermal stress, which could lead to the destruction of the sintering samples in this region. because of the coupling effect between scanning lines, the balling phenomenon is increased as the increase of the scanning lines, thus the over short scanning lines should be avoided in the sintering process. different scanning strategies have significant influence on the sintering
模擬結果表明,掃描端點溫度場的不對稱及較大的溫度梯度造成了端點球化現象,並在端點處產生較大的熱應力,使燒結成形試樣易在此處破壞;激光掃描線間的耦合作用使端點球化現象隨掃描線的增加而逐漸顯著,燒結時應避免過短的掃描線;不同掃描策略對燒結成形有很大影響,交替掃描會影響燒結試樣的質量,實際製造時應採用單向掃描策略。The studies indicate that different content of pyrophyllite and dolomite can cause the following three cases : ( 1 ) making the refractory point decrease linearly and, to some extent, influencing the microstructure and properties of sintered body ; ( 2 ) acceleratingmullite formation during sintering, reducing thermal expansion coefficient of bond, reinforcing the matching nature and improving the flexural strength and shock strength ; ( 3 ) preventing sic grinding tool from generating black core, expanding suitable sintering temperature range of sic grinding tool
同時,也不同程度地影響了磨具燒結體的微觀結構和性能; ( 2 )可促進在燒結過程中莫來石的形成,降低結合劑的熱膨脹系數,加強了結合劑與磨料的匹配性,提高了磨具的抗折強度和抗沖擊強度; ( 3 )在一定溫度范圍內還可防止碳化硅磨具出現黑心現象,拓寬了碳化硅磨具的燒結溫度適應范圍。The expansion and dehiscence behavior during the vacuum reactive sintering below 660 of compact ti / al composite powders was experimentally investigated, and the reasons of expansion and dehiscence were theoretically analyzed. the method of low temperature reactive sintering was generalized, and the experiment testified the method effective. the rule of the expansion of the billets was generalized from the result of density of the billets
低溫反應燒結工藝:研究了高能球磨ti / al復合粉體在溫度低於660下真空無壓反應燒結過程中的膨脹和開裂行為,分析了產生膨脹和開裂的主要原因;並提出了能夠有效預防坯料開裂的方法;通過測定坯料在低溫燒結后的密度,總結了其體積膨脹的規律;通過x射線衍射技術分析了隨球磨時間不同,金屬間化合物的生成情況。Moreover, the addition of wollastonite rose the thermal distortion temperature of the sls part, improved the dimensional accuracy of the sls part, and lowered the material cost greatly
同樣,加入硅灰石后,可使燒結件的熱變形溫度大幅度提高,同時提高了燒結件的尺寸精度,大大降低了材料成本。But it also includes two fatal disadvantages : first, at is difficult to be sintered and its density is low, which causes its lower strength ; second, in the temperature range of 1023 - 15 73 k, at can decompose into al2o3 and tio2 easily, which can cause the stress concentrated and raise the heat expansion rate
但是該材料本身存在的兩大致命的缺點,在很大程度上限制了它的廣泛應用: ( 1 ) 、鈦酸鋁難以燒結,燒結體的緻密度低,因而強度不高; ( 2 ) 、在750 1300的溫度范圍內易分解成氧化鋁和二氧化鈦,造成材料內部應力集中,並使材料的熱膨脹率升高。The sls technology actuality in our country and abroad is analyzed
本文分析了國內外選擇性激光燒結成型( sls )技術的研究現狀。The blended powder of nylon 12 and wollastonite was molded by selective laser sintering ( sls )
摘要將尼龍12與硅灰石的混合粉末進行選擇性激光燒結成型。The research of metal powder laser sintering is a hot topic in rapid prototyping technology area
金屬粉末激光燒結成型技術是目前國內外快速成型領域的研究熱點。The measure and method of minimize the sintering disfigurement is presented, which could be a guidance to the optimization of process parameter in the thermoplastic application of laser sintering prototyping
並提出了減少燒結缺陷的措施和方法,這對激光燒結成型工藝在熱塑性塑料中的應用有一定指導意義。In this paper, nanosized al2o3 ceramic particles were chose as reinforcing phase. enhanced with ultrasonic wave the particles were covered with copper using method by electroless plating, the copper - matrix composite was developed by hot - press sintering process of the composite powder. the composition, microstructure, hardness, density and dry sliding wear property of the new material have been studied
研究路線為:選用納米級al _ 2o _ 3陶瓷顆粒作為增強相,在超聲波的環境中用化學鍍的方法完成對納米al _ 2o _ 3陶瓷顆粒表面的金屬銅包覆,採用熱壓燒結成型技術以復合粉末為原料制備成納米al _ 2o _ 3陶瓷顆粒增強銅基復合材料,研究分析復合材料的成分、組織結構、硬度以及緻密度,對試樣進行了干滑動摩擦磨損實驗。The technics of the selective laser sintering for metal power covered with organic resin is studied in this paper, the content of research include three segments, firstly, we have finished the manufacture of 316l stainless steel metal power cocered with organic resin, the metal power covered with organic resin is applied by a lot of department and effect of use is very good, this technology also acquired patent
並對覆膜金屬粉的選擇性激光燒結成型工藝進行了研究。研究主要從三個方面進行第一,完成了覆膜316l不銹鋼金屬粉的制備,應用該技術生產的覆膜金屬粉在許多單位得到應用取得良好效果且該項技術獲得了國家專利。The researching work include three aspects : 1 ) after selecting primary material system, the polymer coating process were optimized. the polymer - coated high - temperature alloy powder has been developed on the basis. 2 ) based on sintering and orthogonal experiments, the influence of the prototyping elements on prototyping properties have been initially studied, and the optimal prototyping parameters of this material has been obtained finally
本文主要研究內容為: ( 1 )選擇合適的包覆材料體系,對鉬粉的包覆工藝進行了優化實驗,在此基礎上開發了適合於激光燒結成型用覆膜高溫合金粉末材料; ( 2 )通過激光燒結成型實驗,運用正交實驗方法,系統地研究了燒結工藝參數對成型質量的影響關系,在此基礎上確定了覆膜高溫合金粉末最佳燒結成型工藝參數; ( 3 )對激光成型件進行了后處理工藝實驗,得到了優化的后處理工藝規程,並製作了合格的后處理樣件。Under the background of correlative research project, the method of selective laser sintering has been used in the researching work. polymer - coated high - temperature alloy powder have been first developed successfully in our nation. the laser sintering and post - treatment process of high - temperature alloy parts have been systematically studied, which lay the foundation for its engineering application
在國內首先研製成功了覆膜高溫合金粉末及其制備工藝,並對其激光燒結成型和后處理工藝進行了系統的實驗研究,為該項技術的工程化應用打下了基礎。Market prediction and cost analyse of debris brick
煤矸石燒結磚的市場預測及成本分析In order to improve diamond fine powder sinter ' s mechanical property, using the present laser technique, high power transverse co2 laser is used to sinter diamond fine powder compact to study the integrating capability in the sinter between diamond fine powder and metallic powder, microstructure and the forming mechanism of microstructure in the different laser technical parameters
摘要為了改進金剛石微粉燒結體的機械性能,利用現有的激光技術,採用高功率橫流co2激光燒結金剛石微粉壓坯,研究在不同的激光工藝參數下,燒結體中的金剛石微粉與金屬粉末粘結的結合性能、微觀結構以及形成機理。Results of the experiments showed that the wear mechanisms of the sintered steel included abrasive wear, adhesive wear and fatigue wear, and it was the abrasive wear most important. it was the sintered steel mixed by ni, mo that was the best on the wear resistance, because of the great lot of bainite ; the sintered steel quenched and low temperature tempered mixed by mo, w that was the best on the wear resistance, because of the rigidity of the steel was the highest
實驗結果表明:本文中幾種燒結鋼的磨損機制均是由磨粒磨損、粘著磨損、和疲勞磨損共同作用的,且以磨粒磨損為主;在燒結態下,復合添加合金元素鎳、鉬的燒結鋼的耐磨性能最好,這是因為生成了大量的硬質相貝氏體;而淬火、低溫回火態下,則復合添加鉬、鎢的燒結鋼的耐磨性能最好,這是因為熱處理態下添加鉬、鎢的燒結鋼的硬度最高。It is showed that there are intricate relations between the fuel amount and both the yield and the tumble strength of agglomerate, but no direct effect on the main economy and technology indexes of sintering production by the lime amount used in sintering
結果表明,必要的燃料用量是滿足燒結礦同時具有較高轉鼓指數和成品率的基本條件,生石灰用量不會對燒結礦的主要技術經濟指標產生直接影響。And the mechanism was discussed. the form of the gold electrode was designed so as the reference capacitor cr can correct the non - linearity of the main variable capacitor cp. the characterization on absorbability and erosive - proof to ceramic of gold conductive sol was studied
對金電極的形狀進行了設計,設置參照電容cr ,可較好地修正測量電容cp的非線性;研究了金導電漿料的配方、組成,通過調節漿料的成分,加入部分添加劑,提高了燒結后的電極對瓷體的附著力和耐腐蝕性。The last, we have accomplished the last treatment to the parts, on account of the parts have excellent mechanical capability, it can satisfied the damand of metal molds
第三,完成了對激光燒結件的后處理(脫脂、高溫燒結、滲金屬) ,且零件具有良好的機械性能,基本滿足工模具的使用要求。分享友人