三针规修正值

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1、螺纹测试用三针及修正值1#发表于2007-3-1416:13

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4、打印公制螺纹a=60°螺距计算最佳三针选用三针修正值0.250.14430.1420.20950.500.28870.2910.44001.000.57740.5720.85001.500.86600.8661.29901.751.01041.0081.50852.001.15471.1571.73892.501.44341.4412.15793.001.73211.7322.59793.502.02072.020

5、3.02894.002.30942.3113.4689美标统一螺纹a=60°牙数螺距计算最佳三针选用三针修正值360.70560.407400.4330.688320.79380.45830.4330.6116320.79380.45830.5110.8456280.90710.52370.5110.7474280.90710.52370.5720.9304270.94070.54310.5720.9013241.05830.61100.5720.7995241.05830.61100.7241.

6、2555201.27000.73320.7241.0721201.27000.73320.7961.2881181.41110.81470.7961.1659181.41110.81470.8661.3759161.58750.91650.8661.2232161.58750.91651.0081.6492141.81431.04751.0081.4528141.81431.04751.1571.8998122.11671.22211.1571.6379122.11671.22211.3022.0

7、729112.30911.33321.3021.9063112.30911.33321.4412.3233102.54001.46651.4412.1233102.54001.46651.5532.4593英制螺纹a=55°牙数螺距计算最佳三针选用三针修正值241.05830.59660.5720.7942201.27000.71590.7241.0721191.33680.75360.7241.0079191.33680.75360.7961.2359181.41110.79540.7961.1

8、645161.58750.89490.8661.2167161.58750.89491.0081.6662141.81431.02271.0081.4484141.81431.02271.0471.5719122.11671.19311.1571.6297112.30911.30161.3021.9039102.54001.43181.4412.122192.82221.59091.5912.325983.17501.78971.7322.433483.17501.78971.8332.75317

9、3.62862.04542.0503.0044转载请注明出自(六西格玛品质网http://www.6sq.net),本贴地址:http://www.6sq.net/thread-133023-1-1.html螺纹塞规检定规程时间:2010-04-1007:51作者:铸铁平板点击:405次螺纹塞规检定规程适用于直径200mm以下新制造和使用中的普通螺纹塞规,圆柱管螺纹塞规和梯形螺纹环规的检定.螺纹塞规检定规程本规程适用于直径200mm以下新制造和使用中的普通螺纹塞规、圆柱管螺纹塞规和梯形螺纹环规的检

10、定。一、概述螺纹塞规是用于对内、外圆柱螺纹制件进行综合检定的量具，它能控制螺纹制件的极限尺寸。螺纹量规按用途不同可分为三种:校对量规、工作量规和验收量规。二、检定项目和检定条件检定项目和检定工具见表1 2检定螺纹塞规的室内温度和受检前放置室内达到温度平衡所需的时间应符合表2规定。 2.1螺纹量规在检定前，螺牙和顶尖孔需用汽油制洗，并用白府绸布擦净。三、技术要求和检定方法3外观3.1要求3.1.1螺纹量规的测量面不应有锈迹、毛刺、黑斑、划伤等明显影响外观和使用质量的缺陷，其它表面不应有锈蚀和裂纹。3

11、.1.2螺纹塞规的测头与手柄联结应牢固可靠，在使用过程中不应松动脱落。螺纹量规的非工作面上应有螺纹代号和中径公差带代号、制造厂商标、出厂年月。对于公称直径小于14mm的螺纹塞规应在锥柄上标有螺纹代号和中径公差带代号，其手柄上应标有上述全部内容。3.2检定方法目力观察。4硬度4.1要求:钢制螺纹量规测量面的硬度应为HRC58一65，对于公称直径等于和小于3mm的螺纹塞规为HRC53一60}4.2检定方法:用洛氏硬度计对新制造的量规进行抽样检定。表面粗糙度5.1要求:螺纹量规测量面的粗