Engine parts company: what can be done to repair the cylinder head

The cylinder head, as a part of the engine, is often subjected to large mechanical and thermal loads, resulting in cracks. According to the company that makes engine parts, even if the engine parts are of relatively good quality on the market, the cylinder head can not be avoided after long-term use. And then the engine parts company will tell you what you can do to repair the cylinder head.

Engine parts company: what can be done to repair the cylinder head

The first kind, welding repair method

The welding repair method with high bonding strength is the most recommended method by the engine parts company when the owner repairs by himself. The basis for deciding whether this method is feasible is to check whether the crack in the cylinder head occurs at a higher temperature or under greater stress. Welding repair method can be divided into cold welding and hot welding, and then the engine parts company introduced one by one.

1. Thermal welding

First, the drill bit is used to drill holes with proper size and diameter at both ends of the crack, and then the cylinder head crack is chiseled into a "V" groove. Remember that the Angle should be appropriate and the debris of the drilled and chiseled engine parts should be cleaned. At this point, the engine parts company reminds the car owners to preheat the welded workpiece properly, and use acetylene gas welding directly to weld the welds after the workpiece temperature is appropriate. Through the long-term practice of the engine parts company, it is shown that the thermal welding method will not generate large internal stress during welding, so it can guarantee that the welded parts will not produce white mouth and crack.

2. Cold welding

The only difference between cold welding and thermal welding is the workpiece. Thermal welding requires preheating of workpiece in advance: the cold welding method does not require this step, but directly USES acetylene gas or welding tool to weld the workpiece. The engine parts company reminds the car owner, these two kinds of methods have respective merit, must consider own situation when choosing.

Second, the inorganic binder repair method

Repairing a crack in a cylinder head using a binder is undoubtedly the most convenient method. The engine parts company recommends that car owners who are busy and don't have much free time use this method. As the inorganic binder has the characteristics of high temperature resistance, it is used to repair the crack on the bottom surface of the cylinder cover.

In addition, the engine parts company should remind everyone that the size of the crack in the cylinder head, the larger crack can be identified by the naked eye and can be repaired by itself; However, some tiny cracks cannot be identified with the naked eye, so they are often ignored by car owners. At this time, it is necessary to ask professional technicians to repair them.