It was believed after the reason analysis that the blowhole defect was caused by the gas evolution of sand cores after being heated and the improper pouring system design which leading to the gas immixture.
介绍了493Q气缸盖的铸造工艺,分析认为气孔缺陷是因砂芯受热分解与浇注系统不合理裹入气体导致。
But it\'s easy to make linear porosity in welding.
在工程焊接中容易出现条状气孔缺陷。
Through judging correctly appearance features, surface colors of endogenous reaction porosity in the course of sand mould casting, this paper analyzes the formation reasons of the endogenous reaction porosity, and advances some preventive measures according to the formation reasons.
通过对砂型铸造内生式气孔的形貌特征、表面颜色的准确判断,从而对其形成原因进行了分析,并针对形成的原因提出了相应的预防措施。
Research on the Casting Shrinks Properties and Air Hole of Ti-43Al-9V Intermetallic Compounds;
Ti-43Al-9V铸造受阻收缩及气孔缺陷
Formation Reason and Countermeasures of Blowhole Defects for Cylinder Block Casting
柴油机缸体气孔缺陷成因分析及对策
Elimination of gas holes of laser cladding on 2A12 aluminum alloys
消除2A12激光熔覆气孔缺陷工艺
The Problem Solving of Gas Cavity Quality Deficiency on Aluminum Alloy 4004 Flat Cast Ingot
4004铝合金扁铸锭气孔缺陷问题的解决
Research on Image Automatic Identification Technology to Valve Small End-face Pore Disfigurement;
气门小端面气孔缺陷图像自动识别技术的研究
Prevention of Linear Porosity in EGW for Large Storage Tank
大型储罐气电立焊条状气孔缺陷的预防
Impacts of Void Defects on Thermal Fatigue Life in Coaxial-cable Solder Joint
气孔缺陷对同轴电缆焊点热疲劳寿命影响
LJ465Q-1A Engine Block Stomatal Defect Analysis and Response Measures
LJ465Q-1A汽油机缸体气孔缺陷分析与应对措施
Gas Pressures on the Mold/Metal Interface
防止树脂砂铸件侵入性气孔缺陷金属液-型砂界面气体压力的探讨
Any severe deficiency of welding seams surface like cracks, pores, slags is forbidden.
焊缝表面不得有裂纹,气孔,夹渣等严重缺陷.
External defects: undercut,overip,arc pit, gas cavity in surface,crack in surface.
外部缺陷：咬边、焊瘤、弧坑、表面气孔、表面裂纹。
Internal defects:lack of penetration,lack of fusion,slag,gas pole,carck,overheating.
内部缺陷：未焊透、未熔合、夹渣、气孔、裂纹、过热。
Prevention of quality defect in hole drilling grout pillar;
桥梁钻孔灌注桩质量缺陷分析及防治
Nondestructive Evaluation of Pinhole Defect of Cast Aluminum Alloy by Ultrasonic Method
铸造铝合金针孔缺陷的超声无损评价
Cylinder hole sunspot flaw reason analysis and solution measure
缸孔黑点缺陷的原因分析及解决措施
Common Quality Defects and Prevention Measures of Cast-in-place Bored Pile
钻孔灌注桩常见质量缺陷及防治措施
STUDY ON TROUBLESHOOTING GLAZE PINHOLING IN HIGH TEMPERATURE REINFORCED PORCELAIN
解决高温强化瓷釉面针孔缺陷的研究
Study on the method of defect circle hole detection in PCB microscope image
PCB显微图像缺陷圆孔检测方法研究