1) high-integrity casting
高致密铸件
2) high gas-tight aluminum castings
高气密性铝合金铸件
1.
The technology can assure better surface quality and high dimensional precision and increase the filling ability of the alloy and improve inner quality of the casting, so it can be adopted for the casting with strict quality requirements and high complexity, especially for high integrity and high gas-tight aluminum castings.
本文论述了熔模石膏型真空增压铸造技术工艺过程和技术原理,并介绍了利用该工艺生产的典型的复杂、高致密、高气密性铝合金铸件。
3) investment casting
精密铸件
1.
Based on solidification and shrinkage theory of molten metal and fluid How theory through porous media, a mathematical model of predicting microporosities in Ti-Al alloy investment castings has been established under the condition of centrifugal pressure;.
根据金属液凝固收缩理论和多孔介质中流体流动原理,建立了离心压力下Ti-A1台金精密铸件中微观缩松缺陷预测的数学模型,采用该模型对Ti-Al增压涡轮铸件进行模拟计算,并进行了实验验证,结果表明,数学模型能够合理反映离心转速,离心半径、温度梯度和冷却速度等重要因素对微观缩松的影响规律,数值模拟结果与实验结果相吻合。
4) pressure-tight casting
气密铸件
5) high purity and density
高纯致密
1.
Bulk Ti 3SiC 2 material with high purity and density was fabricated by the mixed powders with the composition of n (TiC)∶ n (Ti)∶ n (Si)∶ n (Al)=2∶1∶1∶0.
2的起始混合粉料在 130 0～ 14 0 0℃和 30MPa压力下热压 2h制得高纯致密Ti3 SiC2 块体材料 。
2.
Bulk Ti3AlC2 material with high purity and density has been fabricated by pressing the powders mixture with the composition of TiC:Ti:Al:Si=2:1:1:0.
2的起始混合粉料在1300～1500℃温度下,30MPa压力下热压2h制得高纯致密Ti3AlC2块体材料。
6) high density forming
高致密化
1.
Since the increase in density will increase the performance of powder metallurgy (PM) product, high density forming is therefore, an important research and direction in powder metallurgy.
指出发展粉末冶金高效高致密化成形技术是粉末冶金的发展方向和研究重点, 产品致密化程度的提高将大大促进性能的改进。
补充资料：MaroteauxLamy致密骨发育不全综合征
MaroteauxLamy致密骨发育不全综合征
为常染色体隐性遗传。表现：生长矮小。骨硬化并有横断骨折倾向，约有2/3的病人有骨折史，常在颌骨、锁骨及下肢，包括骨。额部及枕部隆起，颅缝闭合延迟，前囟持续存在，缝间骨，缺少额窦。面部发育不良，鼻高，上腭呈窄沟状，下颌角钝或小。牙齿不整，有或无部分缺齿，出牙延迟，龋齿，往往需牙科处理。锁骨发育不良致肩峰端丧失。末节指骨短，为骨质溶解性发育不良。末节指骨背侧皮肤起皱纹。指甲扁形或沟状。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条