Tianjin as the amount of the purchase easy to harvest point inside convenience

1 inside micrometer measurements are used in the correct size precision measurement (sub monobloc and Post) Method 1) inside micrometer in measuring its use, it must use its maximum size of the coupling lever micrometer head connected to the measuring successively along contact, in order to reduce the connection axis after bending. 2) The measurement should see the amount of change micrometer head is fixed and the time of release. 3) in daily production, with an inner diameter of the hole when tape measure, measure the contact surface to measure supported on the surface to be measured, adjust the differential cylinder, the measurement surface side of the differential cylinder oscillating in a radial section of the bore, looking the minimum size. Then tighten the fixing screws removed and readings, there are not direct reading tighten the screws. This attitude measurement problems exist. Attitude Measurement: consistency that is measured with use. For example: Measure 75 ~ 600 / 0.01mm when the inner diameter of foot, then after pole connector with micrometer size greater than 125 mm. Its time to tighten the set screws are not tightened readings differ only 0.008 mm measurement error attitude. 4) inside micrometer measure supporting position to the right. Large scale gravity take long after internal diameter of deformation related to straightness, parallelism, verticality form and position errors. The size of stiffness, specifically reflected in the "natural deflection" on. Theoretical and experimental results show that the stiffness of the cross-sectional shape determined by the work of gravitational deformation after supporting a great impact. Such as the inner diameter of different cross-sectional shapes of feet which had the same length L, when supported (2/9) L at Found error can make the inner diameter of feet to meet the requirements. But slightly different supporting points, its value is greater straightness change. So straightness change position to support the national standard will be supported at maximum value when the distance between the position known as the "natural deflection." To ensure the rigidity of national standards set forth in the inner diameter of the foot of the support point to the (2/9) L and at the place from the end face 200 mm, which measure the minimum amount of change. And the inner diameter of the foot tested once every 90 °, which shows the value of the error should not exceed the requirements of Tianjin Dongli District Junko hardware firms main products: vernier caliper micrometer hundred, dial gauge head lever hundred, one hundred micrometer inner diameter , dial indicator magnetic table knife Squares gauge etc. I get the integrity and product quality to you, my clients nationwide toll-free hotline 022-26764635 Sales Hotline QQ 1722109922 18622929106 Zhang Changshun www.szwjgj.com straight metal