?Detection of Xinhua Xu rubber O ring???

??Application of rubber O ring size of the product is very important, the detection of rubber O-ring used by most caliper measuring inner and outer diameter and cross section measurement error is relatively great. Foreign attaches great importance to the quality control of rubber O ring products, commonly used micro hardness tester and the hardness of finished products.

??Below we understand several detection methods of Xin Hua Xu rubber:

??Xin Hua Xu measurement of rubber O ring diameter. Measurement of small size O circle diameter with the cone rod, the diameter is below 50MM, the measurement error is not more than + 0.02MM. The rubber O ring with the same inner diameter can be used in the same cone bar, and the section diameter of the O type ring is not considered.

??SM flexible ruler, can be applied to diameter O rubber 55~380MM ring diameter size measurement. It is made of translucent film.

??Dial indicator measuring, the measuring force will cause rubber compression deformation, deformation degree dependent on the rubber of hardness and contact state must be on hardness and the on line measurement of size and axial wire diameter value correction.

??Xinhua Xu rubber O ring surface quality detection is checked in accordance with GB3452.2-87 standard and the appearance quality including: dislocation, mold shrinkage crack and trimming excess, flow mark, concave and convex defects etc.. Usually with visual inspection, found the problem after reviewing the available tools microscope projector.

Measurement of environmental requirements: the temperature should be 23 - 5 DEG C and relative humidity is not more than 90%.