??Xinhua Xu rubber O-ring detection ???

??Size rubber O-ring on the use of the product is very important, in the current detection caliper rubber O-ring of most use, the outer diameter and cross section measurement errors. Foreign attaches great importance to the quality control of the finished rubber O-ring, the sheet P is detected using micro durometer hardness of the finished product.

??Here we learn several methods of detecting Xinhua Xu rubber:

??Xinhua Xu rubber O-ring diameter measurements. Cone measuring stick small size O-ring diameter, the diameter of 50MM or less, and the measurement error is not greater than ± 0.02MM. With an inner diameter of rubber O-rings can be used with a tapered rod, and not to consider the cross-sectional diameter of the O-ring.

??SM flexible ruler, applicable to diameter of the rubber O-ring inner diameter measurement of 55 ~ 380MM. It is made of a translucent film.

??Dial indicator measuring, measuring force can cause rubber compressive deformation, deformation depends on the hardness of the rubber and the contact state, and have different hardness measurement range diameter and axial diameter ranging amendment right.

??Xinhua Xu rubber O-ring surface quality inspection is to be checked by the GB3452.2-87 standard, the appearance of quality include: dislocation, mold shrinkage cracking, trimming excess flow marks, uneven defects. Usually visual, discovery projector tool microscope available for review after issue.