1)  vacuum differential pressure casting
真空压差铸造
1.
The technologic parameters which have important influence on filling mold of metallic liquid in vacuum differential pressure casting were studied, such as vacuum, pressure of gas, flux of gas and etc, especially, the roles of vacuum and flux of gas during filling mold of metallic liquid were described in detail.
研究了真空压差铸造中影响金属液充型能力的因素,如真空度、气源压力、气源流量等,详细论述了真空度及气源流量在铝合金液充型时的作用;得出了真空压差铸造法的最佳充型工艺参数。
2)  vacuum
真空
1.
Study on regeneration of ethanol-loaded activated carbon by microwave irradiation under vacuum condition;
载乙醇活性炭真空微波解吸实验研究
2.
The research of far-infrared drying of carrot under vacuum conditions;
胡萝卜远红外真空干燥试验参数的研究
3.
Effects of overlap steps on oxygen production by vacuum pressure swing adsorption;
重叠步骤对真空变压吸附制氧性能的影响
3)  vaccum
真空
1.
The influence factors on the polyester polycondensation vaccum system and their treatment;
影响聚酯缩聚真空的因素及处理
2.
Different type of vaccum pump and its combination used in existing polyester plant were introduced,also the economic analysis was done.
介绍已有的聚酯装置中所使用的不同形式的真空泵及组合 ,并对其进行经济分析。
3.
Introduced are four displacing methods, namely complete mixing, non-mixing, vaccum deaeration, and pressure displacement.
介绍了常用的四种置换方法,即完全混合置换、无混合置换、真空置换和加压置换。
4)  vacuum brazing
真空钎焊
1.
The craft and application of vacuum brazing for honeycomb material;
蜂窝材料的真空钎焊工艺及应用
2.
Influence of active element Mg on joint properties of aluminum alloy vacuum brazing;
活性元素镁对铝合金真空钎焊接头性能的影响
3.
Morphology of carbide on diamond interface by vacuum brazing;
真空钎焊金刚石界面碳化物的形貌
5)  vacuum distillation
真空蒸馏
1.
Industrial experiment on recovering metals from waste zinc-tin alloy by vacuum distillation;
真空蒸馏法从废杂锌锡合金中回收金属的工业试验
2.
Cadmium recovery process and modeling in the Ni-Cd batteries by vacuum distillation;
真空蒸馏回收镍镉电池中镉金属工艺优化模型研究
3.
Purification of γ-irradiated 30 % TRPO-ke rosene by vacuum distillation;
真空蒸馏净化辐照后的TRPO煤油体系
6)  vacuum frying
真空油炸
1.
The best processing technology of crispy sweet potato by the method of vacuum frying;
真空油炸甘薯脆片的研究
2.
The manuscript studied the effects of color preservation technology on quality of vacuum fried potato chips by using pretreatment technology before vacuum frying.
采用真空油炸前预处理技术研究了护色工艺对真空油炸马铃薯片品质的影响。
3.
Effects of two pretreatment, combined with vacuum frying on the moisture content, fat content and color value of fried green soy bean were studied.
研究了2种预处理工艺结合真空油炸对毛豆水分质量分数、脂肪质量分数和色差的影响。
参考词条
补充资料:负压铸造
      采用负压造型法生产铸件的一种铸造方法。负压造型又称真空密封造型。这一方法使用的砂箱装有能通气的滤网或蛇形管,通过抽气管与真空泵相连接;使用的造型材料为不含水分和粘结剂的干砂。造型时,先在模板上覆盖一层塑料薄膜,用真空泵抽气,使薄膜紧贴在模板上,然后套上砂箱,再往砂箱中充填造型材料,经震实刮平之后,用塑料薄膜覆盖砂箱顶面,接通真空泵吸出砂粒间的空气,使砂型内形成负压,同时撤除模板真空,让塑料薄膜转而吸附在铸型内腔面上,砂型靠压力差的作用具有一定的强度和硬度。经起模、合箱、浇注、凝固冷却后撤除负压,即可得到所需铸件。负压铸造能应用于各种合金的铸造,是20世纪70年代出现的一种新方法。用这种方法制造出的铸件轮廓清晰,表面光洁,尺寸精确,既适于浇注厚壁铸件,更适于浇注薄壁铸件,有些小直径的孔眼,也能直接铸出。由于造型材料中不含水分和粘结剂,铸件不易产生气孔等缺陷,内在质量较好,砂处理简化,铸件落砂方便,但操作较复杂,生产率低。
  
  参考书目
   李魁盛主编:《铸造工艺设计基础》,机械工业出版社,北京,1980。

  

说明:补充资料仅用于学习参考,请勿用于其它任何用途。