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electric vacuum
相关语句
  电真空
     QUALITY CONTROL OF HIGH-ALUMINUM OXIDE ELECTRIC VACUUM CERAMIC TUBE
     电真空高铝陶瓷管产品质量控制
短句来源
     The article has a careful analysis on common defects in the metallization of electric vacuum ceramic tubes,and puts forward relevant measures according to the practices of the metallization of electric vacuum ceramic tubes.
     根据电真空陶瓷管金属化的生产实践,仔细分析了电真空陶瓷管金属化过程中常见的缺陷,同时提出了一些相应的改进措施。
短句来源
     Analysis on Common Defects in theMetallization of Electric Vacuum Ceramic Tubes
     电真空陶瓷管金属化生产中常见的缺陷分析
短句来源
     Cleaning and Safety Measurement in the Process of Electric Vacuum Components
     电真空器件工艺中的清洁处理与安全防护问题
短句来源
     The cleaning and safety measurement are the non-negligible problems in the process of electric vacuum components.
     清洁处理与安全防护问题是电真空器件工艺中不可忽视的问题。
短句来源
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  “electric vacuum”译为未确定词的双语例句
     NEW DEVELOPMENT OF ELECTRIC VACUUM AND ITS DEVICES
     发展中的真空电子学及其器件
短句来源
     Vacuum distillation is used in the experiment which is proussed in an electric vacuum furnace.
     我们采用真空蒸馏的试验方案。 试验在电热式真空炉内进行。
短句来源
     The controlled thermal expansion alloys are wiclely employed in the electric vacuum industry. But the Semiconductor and the outlet of fixed circuit made of the alloys is easy to occur delay fracture, that is stree--corrosion fracture.
     可伐合金在真空工业中应用广泛,但此合金制成的半导体管及固定电路的外引线易发生延迟断裂,即应力腐蚀断裂。
短句来源
     4J29 alloy used as the glass-alloy sealing material of construction for electric vacuum devices is required to have the same expantion coefficient as glasses.
     4J29合金是玻璃封接材料。
短句来源
     The performance of the vacuum assist brake system is computed,and the computation flow of the minimum vacuum of the electric vacuum pump is designed.
     对真空助力制动系统的性能进行了分析计算,设计了电动真空泵最小真空度的计算流程。
短句来源
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  相似匹配句对
     Stability of Vacuum Electric Arc Discharging
     真空电弧放电稳定性
短句来源
     NEW DEVELOPMENT OF ELECTRIC VACUUM AND ITS DEVICES
     发展中的真空电子学及其器件
短句来源
     concentrated in vacuum;
     真空浓缩 ;
短句来源
     Vacuum Cleaner
     吸尘器
短句来源
     Electric City
     电子城
短句来源
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  electric vacuum
Use of mullite-silica material-base fiber thermal insulation in an electric vacuum furnace
      
The automated electric vacuum technological installation with a vibration-mixed bed that has been built triples the output of the synthesis process.
      
It is demonstrated that thin layers of carbides, in particular TiC and ZrC, can be successfully applied to copper, molybdenum, and nickel parts of electric vacuum devices by the electric spark process.
      
Application of a composite copper-titanium-carbide material in electric vacuum devices
      
Sintered cathode materials for electric vacuum devices
      
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The present paper has described the die made by chromium car- bide for forming mass spectrometer needle and double curved surface glass tube in surface analyzing instrument.The die was repeatedly operated under a high temperature of 800℃ with little deformation,ensuring high accuracy of glass product size.The die made by chromium carbide exhibits high oxidation resistance and no bonding with glass and is easy to eject.The performance dura- bility of the die is over 10 times higher than that of the conventional...

The present paper has described the die made by chromium car- bide for forming mass spectrometer needle and double curved surface glass tube in surface analyzing instrument.The die was repeatedly operated under a high temperature of 800℃ with little deformation,ensuring high accuracy of glass product size.The die made by chromium carbide exhibits high oxidation resistance and no bonding with glass and is easy to eject.The performance dura- bility of the die is over 10 times higher than that of the conventional 1Cr18- NigTi materlal.Therefor chromium carbide is an ideal die material for producing “electric vacuum glass product”.In addition,manufacturing technologies and properties of chromium carbide have also been outlined

介绍了采用碳化铬硬质合金制作质谱计和表面分析仪器中的双曲面玻璃管的成形模具。该模具在室温至800℃范围内反复加热成形,变形甚微,保证了玻璃制品几何尺寸的高精度要求,该合金具有极高的抗氧化性能,不与玻璃粘结,易脱模。模具使用寿命较常用模具材料1Cr18Ni9Ti 高10倍以上。因此,碳化铬硬质合金是制作电真空玻璃制品的理想模具材料。还介绍了碳化铬硬质合金的制备工艺和性能。

The Present pyro-refining technology of crude Sb is severely challenged in many aspects.First of all,the harm done by As must be brought under control; secondly,alkali is needed and due to this,the recovety of Sb and As is lowered;thirdly,with the advance of antimony industry, multi-metal ores and low-grade ores are utilized,which will certainly result in obtaining crude Sb with complicated composition.It is particularly difficult to remove foreign metals such as pb and As in crude Sb,let alone treat crude Sb...

The Present pyro-refining technology of crude Sb is severely challenged in many aspects.First of all,the harm done by As must be brought under control; secondly,alkali is needed and due to this,the recovety of Sb and As is lowered;thirdly,with the advance of antimony industry, multi-metal ores and low-grade ores are utilized,which will certainly result in obtaining crude Sb with complicated composition.It is particularly difficult to remove foreign metals such as pb and As in crude Sb,let alone treat crude Sb with high Pb. Vacuum distillation is used in the experiment which is proussed in an electric vacuum furnace.Experimental results are as follows: When remaining pressure is about 133.3Pa and temperature some hundred degrees lower than the boiling point of Sb, the ditect recovery of Sb volatizing into condensed alloy can be as high as 88 to 95% and its quality can reach the level of China's standard 2 refined Sb.All.the Fe,Cu,Pb and Ag concentrate in remnanl alloy.Most of As and S volatilize and are recovered by fractional condensing.The distribution of Sb in remnant alloy is about 6% of all the Sb in raw material.This fraction of Sb can be farther recoverd.The whole recovery of antimony can reach 99%. Vacuum disillation also has notable results on the refining of Sb-Pb alloy with high Pb.

现行粗锑火法精炼工艺面临严骏挑战:一、砷害必须治理;二、不仅需消耗碱,且降低了Sb,As等的回收率;三、随着锑业的开发,多金属矿,低品位矿的被利用,势必得到成分复杂的粗锑、特别是对Pb,As等杂质很难除去,对高Pb的粗锑更无能为力。我们采用真空蒸馏的试验方案。试验在电热式真空炉内进行。试验结果如下:当残压为133.3Pa左右,在低于锑沸点数百度的温度下,锑挥发进入冷凝合金的直收率可达88~95%,质量可达国标2号精锑.Fe,Cu,Pb,Ag都富集于残留合金中,As,S大部分挥发,用分部冷凝回收.Sb在残留合金中的分配为原料含Sb总量的6%左右,这部分Sb还可回收,Sb的总收率可达99%。对含Pb高的锑铅合金的真空精炼效果也十分显著。

The controlled thermal expansion alloys are wiclely employed in the electric vacuum industry. But the Semiconductor and the outlet of fixed circuit made of the alloys is easy to occur delay fracture, that is stree--corrosion fracture. This experiment measures the hydroge brittleness behaviour of 4J_(29) alloy adding Zircomium or not. It is prev- iously that Zircomium has a powerful effect on resistance to tress--corosion. The re- ason is that after adding microele ment Zircomium, The grain side of alloy...

The controlled thermal expansion alloys are wiclely employed in the electric vacuum industry. But the Semiconductor and the outlet of fixed circuit made of the alloys is easy to occur delay fracture, that is stree--corrosion fracture. This experiment measures the hydroge brittleness behaviour of 4J_(29) alloy adding Zircomium or not. It is prev- iously that Zircomium has a powerful effect on resistance to tress--corosion. The re- ason is that after adding microele ment Zircomium, The grain side of alloy get Sm- aller and bring the trop up, the resistance to strerr--corrosion get improved.

可伐合金在真空工业中应用广泛,但此合金制成的半导体管及固定电路的外引线易发生延迟断裂,即应力腐蚀断裂。本实验测定了加锆4J_(29)合金和无锆J_(29)合金的氢脆特性,明确了错对4J_(92)合金抗应力腐蚀性能的作用其原因为在4J_(29)合金中加入微量锆以后,由于晶粒细化和陷井作用,使该合金抗应力腐蚀的性能提高。

 
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