First, food grade silicone imported Y type products to save attention
SIL food grade silicone products, soft transparent, tasteless, yellowing, good insulation, high temperature, high tensile strength, long service life. Based on these characteristics, silicone products are widely used in drinking water machine, water heater, disinfecting cabinet, gas cooker, kettle, cooker and other industries. In order to better play the silicone O-ring rubber products such as the preservation effect, need to pay attention to the following,
1) room temperature should avoid sunlight;
2) should avoid tying hanging to avoid deformation in the needle or metal line and end lip injury;
3) sealed with plastic bag dust antioxidant;
4) maintain indoor ventilation and drying.
Two, the correct use of oil seals and other products
1/ general seal ability under pressure difference, the pressure is too large when the oil seal deformation. In this case, the pressure bearing ring or the pressure seal should be used;
2/ seal and shaft eccentricity can not be too large, otherwise the seal will become worse, especially in high speed shaft. If the eccentricity is too large, you can use the "W" section of the oil seal;
3/ note in the oil seal lip should have a certain amount of lubricating oil, and to prevent dust into the oil seal;
4/ due to design and structure, high speed shaft should use high-speed shaft seal, using low speed low speed can not be used for oil seal oil seal; low speed high speed shaft, and vice versa;
5/ shaft surface finish, directly affect the service life of the oil seal. High smoothness of shaft, long life of oil seal;
6/ in high temperature situation, should use polypropylene ester or silicon, fluorine, silicon and fluorine rubber. And should try to reduce the oil temperature in the tank. In the case of low temperature, cold resistant rubber should be used.
Three, import Y type ring in the use of several important parameters
1) use temperature
This parameter is a very important parameter in the use of the sealing ring. In some cases, the sealing effect and service life of the sealing ring can be directly determined. Use must be clear about how long the use of the temperature, the limit temperature, according to the different material properties of the corresponding selection. At the same time, we should also be aware that it is difficult to accurately describe the maximum operating temperature and minimum operating temperature of the same sealing material, because this is the result of a series of factors. As long as the temperature of the sealing ring and the temperature of the basic material performance requirements, generally no problem.
2) friction
There are many factors that affect the friction force of the Y ring, which mainly include the sealing ring and the surface and the surface roughness of the sealing surface, the pressure, the medium and the temperature.
3) surface treatment
The effect of surface treatment on the service life of the sealing ring is very large. The surface roughness RA is the arithmetic mean of the absolute value of the surface shape deviates from the central line.
4) pressure
Pressure is the main index of the choice of the hardness of the sealing ring. The higher the pressure, the higher the hardness of the seal should be selected. Similarly, if the pressure is relatively small, we should try to choose a smaller hardness, so that the sealing performance will be better. For example, under normal circumstances, the hardness of NBR rubber, fluorine rubber, EPDM rubber and silica gel is three for NBR70, FKM75/VITON75, DEPDM70 and SIL70; if the pressure is large, it should be 80, 85 or 90 degrees of hardness. At the same time, the variation of the pressure and the pressure cycle cycle has a great influence on the damage of the Y ring extrusion. And the higher the pressure will lead to other adverse performance of the sealing performance, such as the gap between the piston and cylinder, temperature and speed, etc..
Four, imported raw materials and major product categories
100% imported raw materials - the United States DuPont, Daikin, Germany LANXESS and other well-known companies to provide. High quality raw materials to ensure the sealing performance of the product. Taiwan Asahi Meike XOK sealing technology is dedicated to providing first-class imported seal of the company.
Main products:
A, O type ring: all kinds of rubber O ring, mainly NBR, HNBR, FKM/VITON, EPDM, FFKM, SIL, PU, CR, PTFE, etc.;
B, import Y ring, ED ring, star ring, rubber gasket, rubber ball, flat ring, combination washer, pneumatic seals and non-standard pieces of rubber parts;
C, cylinder: spot with TC skeleton oil seal oil seal, the other also has production, such as Y - ring, U - ring, V composite, stepseal, glyd ring and a dustproof ring seal, etc.