The sealing cover of the rear plug cover of the automobile cylinder is mainly made of two kinds: aluminum alloy and nylon PA66.
aluminum alloy : often used in cylinder head cover, especially high-quality aluminum alloy such as 6061 aluminum alloy, has excellent processing properties, corrosion resistance, high toughness and other characteristics 1.
nylon PA66 : also a commonly used material, lightweight, cost-effective, suitable for some specific applications
Sealing function : cylinder head and piston together form the combustion chamber to ensure that high temperature and high pressure gas will not leak.
bearing load : the cylinder head bears the mechanical load caused by the air force and the tightening of the cylinder bolts, and bears a high thermal load due to contact with high temperature gas 2.
Isolation oil and air : The basic function of the cylinder head cover is to cover and seal the cylinder head, keep the oil inside and keep dust, moisture and other contaminants out
