The installation method of the hydraulic seal varies according to the seal type and the assembly groove structure. The following are the general installation steps and precautions for your reference:
First, preparation
Select the right seal ring: Select the right seal ring according to the size of the groove of the hydraulic cylinder. Ensure that the size, material and performance of the seal ring meet the design requirements.
Degree fast: The A component (flowing liquid) and B component (curing agent) according to a certain proportion of mixing, stirring evenly, usually in 2-3 hours the mold can be cured. This rapid molding capability greatly improves production efficiency.
Excellent physical properties: silicone rubber has no deformation, no shrinkage, high temperature resistance and other characteristics.
Installation and use of seals should be noted:
(1) Can not be installed in the wrong direction and damage the lip. If there are more than 50μm bruises on the lip, it may cause significant oil leakage.
(2) Prevent forced installation. Can not be struck with a hammer, but to use a special tool to first press the seal into the seat hole, and then use a simple cylinder to protect the lip through the spline.
1 Medium weight gain test
Samples can be taken from the finished product, soaked in one or several selected media, weighed after a certain temperature time, and the type of material can be inferred according to the rate of change of weight and hardness.
For example, after soaking in 100 degree oil for 24 hours, NBR, fluorine glue, ECO, CR quality and hardness change rate is very small, while NR, EPDM.
With fluorine rubber, butyl rubber, silicone, ethylene-propylene rubber, difluoro rubber and other materials of products, widely used in a variety of machinery, resistant to all kinds of petroleum-based oil and a variety of chemical media: the use of non-rubber species can meet the -60℃-+200℃ (difluoro rubber FFKM after a specific vulcanization method can reach more than 300 degrees) temperature area.
Rubber products, as an indispensable part of our daily life, are widely used in automotive, medical, sports, construction and other fields. So, how did these amazing rubber products go from raw materials to practical tools in our hands? Today, let's go into the production process of rubber products and explore the secrets behind it.
Because the main chain is semi-inorganic silicone structure, it maintains the excellent performance of silicone materials such as heat resistance, cold resistance, high voltage resistance, climate aging resistance, etc. On the basis of the introduction of fluorinated groups, fluorine silicone rubber ○ ring ○ seal has excellent hydrogen solvent resistance and oil resistance of organic fluorine materials.
The operating environment of the rotary shaft seal ring is complex and changeable, and its performance and service life are largely affected by these environmental factors. The following is a detailed analysis of the operating environment of the rotary shaft seal:
O-ring in the front we have told you about an overview of it, for O-ring it has its own advantages in terms of sealing, for O-ring you also know what content, you can understand from the following points.
1, small structure size, convenient installation and disassembly. Because the O-ring itself and the installation site structure are extremely simple and standardized, installation and replacement are very easy.
With the improvement of sealing performance requirements, there are now some new extrusion sealing rings, the cross-section shape is different from the traditional O-ring, but the working principle is similar, and it belongs to the extrusion sealing ring. By changing the shape of the section, these new seals improve some of the performance of the O-ring.
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