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Calibration gauge ruler operation Procedure
. Correct operating methods and effective measurement verification procedures should be used for purpose gauge gauge verification to ensure that the measurement verification work is qualified and effective.
.The scope of application is applicable to the gauge gauge verification carried out by this measurement room and ensures that the measurement verification work can be effectively transmitted.
.Responsibilities
.Measurement verification personnel are specifically responsible for the measurement verification, adjustment and maintenance of the gauge ruler of this section.
. Metrology verifiers and verifiers should strictly implement the "Railway Gauge Ruler" metrology verification regulations in their work
.Working procedures
.Preparation work
The calibration temperature of the track gauge ruler is ℃, the temperature equilibrium time of the rail gauge and inspection tools before calibration shall not be less than.
Send the gauge ruler calibrator and ancillary equipment to the superior legal metrology department for weekly inspection on a regular basis.
Place the calibrator and attached measuring tools that have passed the weekly inspection on a solid workbench, adjust the three horizontal adjustment screws on the calibrator so that the levels of the longitudinal and transverse levels are at the center.
Place the standard measuring rod at the position of the calibrator, lightly touch one end of the measuring rod, adjust the track gauge and the micro-volume knob so that the dial indicator pointer on the calibrator does not move more than half a division (/division), and turn the dial indicator Divide the dial, make the pointer point to the zero position, remove the measuring rod, and the calibration device is adjusted.
.Calibration methods and requirements
Appearance
.Visually observe each component, and there should be no defects such as bruises, rust, and peeling off of the paint coating.
. The gauge ruler to be inspected must be kept straight and there must be no visible deflection.
. The scale, scale and markings of the track gauge to be inspected should read clearly.
.Movable probe and fixed probe
The width between the two measuring surfaces of each probe using a first-class outer diameter micrometer is .(newly established), .(in use).
Use a depth vernier caliper to verify the effectiveness of the two probes starting from the rail surface.
Use a secondary width square and a feeler gauge to verify that the perpendicularity of the two probes to the rail surface should not be greater than.
Use a surface roughness comparison sample to compare the measurement surface roughness of the two basic point probes not greater than . (newly manufactured) (in use).
Taian Dingxin sells its high-quality products to Beijing, Tianjin, Hebei, Shanxi, Inner Mongolia, Liaoning, Jilin, Heilongjiang, Shanghai, Jiangsu, Zhejiang, Anhui, Fujian, Jiangxi, Shandong, Henan, Zhengzhou, Hubei, Hunan , Guangdong, Guangxi, Hainan, Chongqing, Sichuan, Guizhou, Yunnan, Tibet, Shaanxi, Gansu, Qinghai, Ningxia, Xinjiang and other places. Reliable quality. Affordable price and good after-sales service
Procurement contact Liu Zhenzhen
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Address: No. Lingshan Street, Tai'an City, Shandong Province
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