Sealant in automobile engine maintenance, sealing has its particularity. Because most of the joint surface after use and disassembly, have different degrees of deformation and damage, so that the sealing leakage increased the difficulty, so that the "three leakage" problem in the automotive repair industry is particularly prominent. In order to solve the problem of "three leakage" of the automobile engine, the technical experts of the Japanese YN Corporation pointed out that some parts because of the position and the higher pressure, the incidence of oil leakage has been very high, which has become a big problem to improve the quality. Such as the engine cylinder joint, because the car in the long-term driving process, the engine cylinder plate is often subject to temperature changes, the main body deformation, and the internal gas pressure under the action of easy to loose, resulting in the joint oil leakage problem is particularly prominent. With the increasing number of cars, such faults are becoming more and more, especially for vehicles with high mileage. So where is the engine oil leakage and what is the good solution?
The current sealing process mainly includes two categories: one is the sealing gasket, such as cork sealing gasket, oil resistant rubber gasket, special sealing gasket; Another type is sealant.
Sealing gasket, as the name implies, is processed into a component with specific materials according to the technical size requirements of the drawing, and is installed on the engine by the engine factory as a seal.
Sealant is the sealant applied to the parts of the engine that need to be sealed, and the sealing effect is formed after curing.
In contrast, sealant has the following advantages:
Accurate positioning: sealing gasket due to processing reasons, there must be processing error, and due to the material processing and forming deformation is bound to make the positioning is not accurate, especially the shape of the relatively complex products. The sealant is directly coated on the product by mechanical viscous paste, so the positioning is very accurate.
No distortion and loosening: the error caused by the sealing gasket and the size required by the drawing is assembled in an airtight space, which will be distorted or loosened, which will affect the tightness of the product. This situation does not occur with sealant. The sealant is well bonded to the surface of the parts that need to be sealed. The sealing ring formed after curing will not loosen.
Increased design flexibility: the sealant does not need to consider the difficulty of gasket processing process, increase the flexibility of sealing surface design, any shape of the plane is easy to achieve a durable and reliable seal.
Cost reduction: data show that the use of sealant relative to sealing gasket can save at least 30% of material, while the use of mechanized operation can save manpower. Sealant does not have unnecessary waste such as flaps in the process of sealing gasket processing. In addition, it can reduce transportation and inventory costs and speed up work efficiency.
However, the domestic market of silicone sealant hundreds of thousands of kinds, dazzling, low-end sealant as long as a few dollars. But the car engine is an extremely harsh environment, demands sealant must remain stable for a long time, have a high temperature resistant, strong adhesion, oil resistance and other characteristics, and the quality of the low end of the sealant is obviously can not meet the requirements, the consequences of using is leaking again, causing inconvenience to the owner again, for the garage, not only waste the time, renovated again, It has also cost its reputation more than it costs. Therefore, the quality of engine sealing material and its correct selection directly affect the performance of engine sealing.
Therefore, Japanese YN Corporation technical experts suggest that in the application of automobile engines, it is necessary to use high-performance, high-quality sealant.
As a global silicone sealant supplier and industry leader, YN Corporation of Japan has been committed to the cooperation with major automotive engine manufacturers. After 30 years of continuous research and improvement, Japanese YN Co., Ltd. has rich experience in the world of all kinds of automobile engines, especially in the production of domestic automobile engines in Japan, in the application and process design of automobile oil resistant sealant, and has a unique solution to the problem of "three leakage" of automobile engines. Its punch product YN.NIKOH SEAL East の adhesive has excellent high temperature resistance and oil resistance and instant sealing, is widely used in automobile engine oil sump SEAL, gearbox and other parts of the oil resistance SEAL, known as the myth of never leakage.