Oil filling pipe with double-side zinc-plating structure and processing method thereof

Abstract

The invention discloses an oil filling pipe with a double-side zinc-plating structure. The oil filling pipe comprises an oil filling pipe body, wherein the oil filling pipe body is formed by connecting and fixing an oil filling steel pipe and an oil filling rubber pipe; one end, far away from the oil filling rubber pipe, of the oil filling steel pipe is provided with an oil filling opening; connecting threads are formed in the oil filling opening; a fluorocarbon resin rubber layer is arranged in the opening position of the oil filling opening; a ventilation pipe is connected onto the oil filling opening; the ventilation pipe is formed by connecting and fixing a ventilation steel pipe and a ventilation rubber pipe; the zinc-plating layers are respectively arranged on the inner and outer surfaces of the oil filling steel pipe and the ventilation steel pipe. According to a processing method of the oil filling pipe, firstly, the zinc plating is performed at the two sides of the steel plate to prepare the zinc-plating layers; then, winding welding is performed to make the steel plate into the zinc-plating pipe; the zinc-plating pipe is finally processed into the oil filling pipe. The processing method is simple; the effective zinc-plating layers can be formed both on the inner and outer surfaces of the oil filling pipe, and the manufactured oil filling pipe has a simple structure and a long service life.

Description

technical field [0001] The invention relates to the field of vehicle accessories, in particular to a fuel filler pipe with a double-sided galvanized structure and a processing method thereof. Background technique [0002] With the rapid development of my country's automobile industry and the continuous improvement of people's living standards, more and more cars have entered our families, and the demand for family cars has soared. Cars are usually fueled with gasoline or diesel oil and are equipped with a fuel tank. In order to facilitate the sealing and refueling of the fuel tank, the filling port of the fuel tank is provided with a special filler pipe. The filling pipes in the prior art are generally made of hard materials such as iron parts or steel parts. Because the interior space of the car is narrow and tortuous, this brings a lot of trouble to the manufacture of the filling pipes; The filling pipe made of high quality material then has the disadvantages of being tro...

AI Technical Summary

Problems solved by technology

The filling pipes in the prior art are generally made of hard materials such as iron parts or steel parts. Because the interior space of the car is narrow and tortuous, this brings a lot of trouble to the manufacture of the filling pipes; The filling pipe made of high-quality materials has the disadvantages of troublesome connection with the filling port, and the connection is not firm.

Furthermore, when some fuel pipes are filled with fuel, the oil intake and return air go all the way, which will make the fuel filling not smooth enough, and the phenomenon of fuel choking is prone to occur, so there is still room for improvement in the existing fuel pipes.

[0003] In addition, in order to prevent corrosion of the filling pipe, the finished filling pipe is often galvanized to prolong its useful life; however, limited by the galvanizing process, the galvanized layer is only attached to the outer surface of the filling pipe ( The inner surface is incompletely galvanized or cannot be plated), and its interior is still very easy to be corroded

[0004] In addition, during the production process of the filling pipe, sometimes it is processed into a semi-finished product for storage and storage. After receiving the product order, the semi-finished product is processed into a finished filling pipe. During the storage process of the semi-finished product, corrosion is also likely to occur. This will greatly affect the quality and service life of the product

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