Machining process of plastic oil tank of hydraulic power unit

Abstract

The invention relates to a machining process of a plastic oil tank of a hydraulic power unit. The machining process of the plastic oil tank of the hydraulic power unit comprises an injection molding process and a welding process, wherein the plastic welding process comprises earlier-stage treatment and welding flows. A tank body of the oil tank is manufactured through the injection molding process; walls of the molded oil tank are uniform; in addition, through the design of non-adhesive layers on the surfaces of a heat plate and a welding mold, the heat plate is not bonded with an adhesive surface, so that the product welding cohesion degree is improved, the product beauty degree is increased, the impact resistance is enhanced, and the low-temperature toughness is improved. Moreover, the system design is reasonable; the cost is reduced; and the machining process is suitable for large-scale promotion.

Description

technical field [0001] The invention relates to a processing technology of a plastic oil tank, in particular to a processing technology of a plastic oil tank of a hydraulic power unit. Background technique [0002] The hydraulic power unit is assembled from a motor, a valve body, a wheel pump and a fuel tank. When working, the motor drives the gear pump through the coupling shaft to generate pressure oil, and the pressure and direction of the oil circuit are controlled through the valve plate to achieve the required pressure and control. As an important part of the hydraulic power unit, the oil tank is used to store oil, emit hot air, escape air, separate water, precipitate impurities and install components. At present, the fuel tanks on the market are metal fuel tanks. This product has a stable structure and excellent stamping resistance, but the metal surface is easily corroded, the service life of the product is short, the cost of raw materials is expensive, and the proc...

AI Technical Summary

Problems solved by technology

At present, the fuel tanks on the market are metal fuel tanks. This product has a stable structure and excellent stamping resistance, but the metal surface is easily corroded, the service life of the product is short, the cost of raw materials is expensive, and the processing is complicated. Later, fuel tanks made of plastic materials appeared to solve the cost of raw materials. Expensive and complex processing. The manufacturing process of this type of plastic fuel tank includes blow molding process and welding process. The inner wall of the fuel tank produced by the blow molding process is uneven, which in turn affects the service life of the product. Sticking to the pot is prone to occur during the traditional welding process The sticking phenomenon makes the welding line of the product easy to leak under oil pressure