Antirust process for connecting rod of automotive engine

[0003] In actual production, connecting rods are processed in large batches, and automatic production lines have already begun. At the same time, because they are directly sent to powertrain assembly after machining, the traditional process often does not oil the connecting rods that have just been machined. The factory directly produces the connecting rods, and then immediately transports them to the engine assembly line for assembly. Because of the good storage conditions and short inventory cycle, the parts are not easy to rust; but once the connecting rods are delivered by the parts factory to the main engine factory, various types of inventory will be involved. Environment, and different transportation conditions, and generally the storage period of the connecting rod is long (generally more than 45 days), the connecting rod is easy to rust, so oiling is required to avoid the rust problem, and at the same time, more requirements are put forward for the rust prevention process of the parts. High requirements, such as cleanliness is good, sediment cannot exceed the standard, the weight of the connecting rod should be consistent after oiling, so that the final connecting rod weight grouping is correct, and other foreign objects cannot be adhered to, etc...

Oil blowing step, some comb nozzles 52 are set in the spraying room 5, and the comb nozzles 52 are distributed on and below the connecting rod 1, and the comb nozzles 52 are used to direct...