产生气孔 meaning in English
blowing
Examples
- The problems in magnesium alloy welding which include the solidification cracking , the appearance of porosity during solidification and large distortion of the welded joint are analyzed
分析了镁合金在熔焊过程中存在容易产生气孔、裂纹及焊后变形量较大等问题。 - Abstract : the reasons of blowholes and cracks in valve surfacing are analyzed based on the measurement of residual stress and observation of fracture microstructure . then the improving plan of quality for valve surfacing is put forward
文摘:通过测定阀门经加工后的残余应力、观察裂纹断口微观组织等，分析了阀门产生气孔和裂纹的原因，并提出改进阀门质量的实施方案。 - But there are some technical difficults for the welding of aluminium alloy such as some broken bits being easily found , a large welding distortion can happen easily , hard to distinguish the difference between the solid metal and liquid metal colour , hard to control the temperature , a lot of air holes can be seen in the welding line and so on
但是铝合金熔化焊时的技术难点在于：焊接时易引起夹渣，焊接变形大，金属的固态和液态的色泽不容易区别，焊接操作时控制温度困难，容易产生气孔等等。如果焊前清理工作不是很好，检测气孔往往超标。 - The experiment result showed that , in the infiltration melting the evaporation speed of si is more rapid than mo . the melting which enrich the mo reacted with the sic body and there existed mo5si3c . the content of mosi2 can be controled by adjusting the contend of c in the perform ; the content of c is more high the pore volume in composite is more high
研究发现，由于熔渗体中si的挥发速度快造成材料物相组成变化，熔渗体与sic坯体反应析出mo _ 5si _ 3c 、 mo _ 5si _ 3相阻塞坯体毛细管，使烧结体中产生气孔。