Industry new

Description of the material classification and use of the seal

The factors affecting the performance of various seals are different. For example, mechanical seals (filler seals, etc.) have factors such as temperature, medium, wear and pressure.
5 purchase common sense one epoxy modified one-component products
1 density ranging from 1.1 to 2.8, curing time is 50 degrees / 4 hours or 110 degrees / 30 minutes or 110 degrees / 50 minutes;
2 With moderate thixotropy, the electronic components can be covered and wrapped on the circuit board. The glue can self-level, but it does not flow, and does not flow during the baking and curing process, maintaining the original shape;
3 cured product black or amber bright, strong adhesion to the circuit board and electronic components, and can withstand 200-300 ° C high temperature and strong acid and alkali corrosion and resistance to various solvent erosion;
4High bonding strength, good heat resistance, excellent solvent resistance, adhesion can be achieved by device damage, temperature resistance and device damage. Cured materials are not attacked by professional solvents, making circuits and electronics The components are advantageously protected against technical leaks inside the device;
5 This product is suitable for the secret potting of electronic devices. It has strong solvent resistance after curing and can withstand long-term immersion of organic solvents. It has extremely high heat distortion temperature and can resist high temperature damage. It also has good hardness and resistance. Abrasive, resistant to etched damage of general cutting tools.
6 Using this product to encapsulate electronic circuits, it has excellent anti-decryptability.
7 This product is easy to use, long storage period, high bonding strength, fast curing speed, low shrinkage, non-toxic and harmless.
8 Store at room temperature for 70 days, and store in refrigerator for more than half a year.
Use points (1) Select the appropriate seal material and hydraulic oil, as well as adaptability to working temperature, oil compatibility. [2] (2) The geometric position accuracy (concentricity) of the sliding parts relative to the seal is high (such as hard chrome plating) and the surface roughness is fine to prolong the service life.
1 For the hydraulic pump, the oil seal used in the motor journal not only requires the roughness of the sliding surface to be within 0.25m of Ra, but also requires hard chrome plating on the surface. In the specific use, it is necessary to adjust the diameter of the lip of the oil seal according to the specific conditions. The spring force is applied to make it elastic, and a sealing sleeve or a shim is used to protect the sealing ring during installation, so as to prevent the lip from rolling and twisting, causing the spring to slip out. [2] 2 The inner surface of the hydraulic cylinder is usually processed by rolling, which not only improves the surface roughness, but also makes the surface cold-hardened, which is beneficial to prolong the service life of the sealing ring. In addition, the pressure used, the length and type of the sliding surface have a great influence on the service life. Therefore, the “check” time should be determined based on these conditions. [2] 3 requires that the sealing surface is in good lubrication and prevents intrusion of dirt. It is also a necessary condition to use the oil that meets the specified cleaning level and the correct installation method.

PREVIOUS：Analysis of the basic performance of rubber sNEXT：The application of seals in three parts of th