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| Explain in detail how to ensure the sealing quality of the engine cylinder head |
| [ Release time：2020-07-02] |
| Replacing the engine cylinder head gasket is a very difficult task. For the technicians of many maintenance plants, doing this job is like a nightmare for many times. If a car does not do well in accordance with the technical requirements when the cylinder head gasket is replaced for the first time, then the car will definitely return to the repair shop at some point for repair. If the correct cylinder gasket is not used, the correct operation method is not followed, or the correct inspection is not made, the effect of the seal will certainly not be ideal. Gasoline engine cylinder head gaskets must seal the combustion chamber pressure above 1,000 psi (1 psi = 6.89 kPa) and the turbocharged diesel engine combustion chamber pressure above 7200 psi. Moreover, the cylinder head gasket must be able to withstand more than 2000. F's high temperature. In such a harsh high-temperature and high-pressure working environment, even if there are slight defects in the seal of the cylinder head, it will cause the failure to replace the engine cylinder head gasket. The cylinder block and cylinder head of the bimetallic engine are made of different metals. His appearance makes the work of replacing the engine cylinder head gaskets more complicated. Most bimetallic engines in use today include a cast iron cylinder block and an aluminum cylinder head. Because different metals and alloy materials have different thermal expansion and contraction rates, successfully designing a cylinder head gasket for bimetallic engines has become a very challenging technology facing many gasket manufacturers problem. |
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