利用胶片特性曲线及辐射理论推算阀门厚度

详细信息

Calculation of the Thickness of the Valve Special Site by Using the Film Characteristic Curve and Radiation Theory

摘要: 介绍了推算阀门阀体铸钢件特殊部位厚度的方法。该计算方法的原理是利用射线底片黑度结合胶片特性曲线及离散坐标法，计算各个方向辐射强度，从而估算工件厚度。并以实际检测中的具体实例进行说明。试验结果表明利用该方法可推算工件厚度，具有一定的应用价值。
- 黑度 /
- 胶片特性曲线 /
- 离散坐标法 /
- 衰减系数
Abstract: This paper introduces the thickness calculation method for valve body steel casting special parts. The method was based on measuring the film density and combining it with film characteristic curve and discrete coordinate to calculate radiation strength in each direction. The actual detection specific example is explained. The results showed that using this method to calculate the thickness of the valve body steel casting should have some practical significance.
- The film density /
- Film characteristic curve /
- Discrete coordinate method /
- Attenuation coefficient

[1]	GB150.1~150.4-2011.压力容器［S］.
[2]	JB/T64400-2008.阀门受压铸钢件射线照相检测［S］.
[3]	JB/T4730.2-2005.承压设备无损检测［S］.
[4]	强天鹏.射线检测［M］.第二版.北京：中国劳动社会保障出版社,2010，53.
[5]	李宏顺.用离散坐标法计算任意方向辐射强度(I)：原理［J］.华中科技大学学报，2003，31(5)：83-85.
[6]	李宏顺.用离散坐标法计算任意方向辐射强度(Ⅱ):验证［J］.华中科技大学学报，2003，31(5)：86-88.
[7]	庄天戈.CT原理与算法［M］.上海：上海交通大学出版社,1992.
[8]	吴世法.近代成像技术与图像处理［M］.北京：北京国防工业出版社,1997.