First, the food grade silicone imported Y type of 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 to pay attention to the matter
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 enhanced pressure oil seal should be adopted;
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, can use the "W" - shaped 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. Shaft finish high, oil seal service life is long;
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. Cold resistant rubber should be used in the case of low temperature.
Three. Several important parameters in the use of imported Y type ring
1) using 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. The use of a certain amount of long-term use of the temperature, the limit of how much, according to the different requirements of the material properties of the material. At the same time, we should also realize that the same kind of sealing ring material of the highest temperature and the use of the minimum temperature is difficult to describe accurately, because it is a series of factors affecting the results. As long as it is clear that the use of the temperature of the sealing ring and the basic temperature properties of the material requirements, generally do not have any problems.
2) friction
There are many factors that affect the Y type of ring friction, mainly include the sealing ring and the sealing surface of the material and the surface roughness, the use of pressure, medium and temperature, etc..
3) surface treatment
The influence of surface treatment on the service life of the sealing ring is very large. Surface roughness RA is the arithmetic mean of the absolute value of the deviation from the center line.
4) pressure
Pressure is the main index to select the hardness of the sealing ring. The greater the pressure, the higher the hardness of the seal should be used. Similarly, if the pressure is relatively small, it should be as far as possible the use of relatively small hardness, so that the performance will be better sealed. 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 height of the pressure and the length of the cycle of the pressure cycle have a great influence on the Y - ring extrusion and other damage conditions. And the higher the pressure will lead to the occurrence of unfavorable sealing performance of other situations, 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:
O, A type ring: all kinds of rubber O ring, mainly has 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.