??To pay attention to the detection of hydraulic seals !!

??China's rubber parts manufacturing plant, although many, but not a professional factory specializing in the production of hydraulic hydraulic seals, at present, is supporting the production of hydraulic seal hydraulic seal most factories obsolete equipment, industrial backwardness, incomplete testing methods, product quality is difficult to be guaranteed .Existing hydraulic seal failure in use, about 30% were caused by failure of hydraulic seals.The main reason is the hydraulic seal of quality testing, it has not attracted attention.

??XuXinhua Here are a few simple hydraulic seal geometry detection methods and measuring instrument.

??Hydraulic seal diameter measurement. Cone measuring stick with small-size hydraulic seal diameter, range is φ50? less measurement error is less than ± 0.02? same kind of inner diameter size of the hydraulic seal can be used with a tapered rod, irrespective sectional diameter circle.

??Flexible ruler simple to use, easy to master, and can be read directly. Suitable for measuring the hydraulic seal inner diameter of a straight 55 ~ 380MM. It is made of a translucent film. Feet from the end of the flexible coil into proximity with the measured object is round, with two fingers with rubber finger of the flexible foot open (or tighten), making contact with the measured circumferential seal, read the flexible foot value on the main scale and vernier two coincidence line shown is the measured hydraulic seal inner diameter. When measuring, attention should be tested hydraulic seals placed on smooth glass or plastic plate measuring not forced open (or tightening) a flexible ruler, in order to avoid errors caused by deformation of the seal ring. Flexible feet firmly grasp the degree of similarity with the inner diameter of the caliper.

??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.