1) puff
[英][pʌf] [美][pʌf]
疏松部
2) internal defect
内部疏松
1.
Theorectical and experimental study on internal defect of equal diameter axis formed in multi-wedge cross wedge rolling;
楔横轧多楔成形等直径轴类件内部疏松的理论与实验研究
3) internal rarefaction
心部疏松
1.
Effect of process parameters of cross wedge rolling on the internal rarefaction;
楔横轧工艺参数对心部疏松的影响
4) Internal loosening system
内部疏松装置
5) porosity
[英][pɔ:'rɔsəti] [美][pɔ'rɑsətɪ]
疏松
1.
Effect of electric current pulse on shrinkage cavity and porosity in casting ZA27 alloy;
脉冲电流对铸造ZA27合金中缩孔和疏松的影响
2.
Factor Analysis and Countermeasures of Porosity and Pipe in Ingot;
钢锭疏松、缩孔的因素分析及对策
3.
In this paper, analysis on the fissuring accident of ZGMn13Cr2Mo antifriction tup is performed, and the reason is believed to lie in serious casting defects of shrinkage cavity, porosity and inclusion.
对ZGMn13Cr2Mo耐磨锤头的断裂事故进行了分析,主要原因是存在着严重的铸造缺陷:缩孔、疏松和夹杂物。
6) Looseness
[英]['lu:snis] [美]['lusnɪs]
疏松
1.
Results indicate that the primary cause to the rupture of the screw in the process of torque force test is proved to be heavily existence of holes and pore gaps in the screw arising from the central looseness of the original billet.
结果得出:螺钉在扭力试验过程中断裂是由于内部存在严重的孔洞和孔隙所造成的,孔洞和孔隙来源于原铸坯的中心疏松。
2.
Mechanism of central parosity and looseness of small billet is described and analysed.
简述小方坯中心缩孔和疏松的形成机理 ,提出减轻中心缩孔和疏松的措
3.
The experimental results show that there are some internal metallurgy flaws such as looseness,shrink hole in the raw material of the axle,and bad widmanstatten structure from the overheating and over-burning during the heating of forging,the comprehensive effects of these factors cause the steel toughness to reduce,and the internal cleavage exists d.
结果表明,车轴轴头原材料中存在疏松、缩孔残余等内部冶金缺陷和锻造热加工中的过热和过烧产生不良的魏氏组织,这些因素的综合作用致使钢的韧性降低,在锻造中发生内部劈裂,最终造成轴头在受外力时脆性断裂。
补充资料：疏松
疏松
poriness
shusong疏松(poriness)钢材的内部缺陷之一，表现为金属横断面酸浸低倍试样上呈现组织不致密，有许多分散的孔隙和小黑点，树枝状结晶粗大，主干和各枝间致密度差别分明，孔隙呈不规则多边形，严重时呈海绵状(见图).在整个试片上表现出组织不致密的叫一般疏松。在中心处集中许多孔隙和黑点时叫中心疏松，纵向酸浸试片上疏松表现为不同长度的条纹，但深度很浅，同裂纹有本质区别。疏松根据产品标准的有关评鬃 疏松级图片鉴定。疏松是金属液凝固时体积收缩引起的小孔隙、树枝状结晶的枝间孔隙及低熔点物质最后凝固放出的气体所形成的微孔的聚集，微孔中及附近有一些夹杂物。含碳量高的钢出现得多。采用充分脱氧、去气和浇铸时及时充填液体金属控制浇铸温度及速度可减少疏松。热加工锻轧可傅疏松焊合，提高金属的致密度。 (崔峰许庆泰)
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