Method for manufacturing automotive oil conveying pipe

Abstract

The invention provides a method for manufacturing an automotive oil conveying pipe. The method comprises the following steps: A, sending an inner pipe sizing material component and an outer pipe sizing material component into an internal mixer for mixing; B, performing quick detection test on the mixed inner pipe sizing material and outer pipe sizing material; C, putting the inner pipe sizing material and outer pipe sizing material subjected to the quick detection test into two feeding holes of a 90 extruder respectively, adopting the straight-form handpiece of the 90 extruder to extrude an inner pipe rubber layer, and adopting a laser diameter measuring instrument to automatically detect the size of the extruded inner pipe rubber layer; D, selecting a 12-stitch knitting machine to knit a fiber linear enhancement layer on the extruded inner pipe rubber layer; E, adopting the T-shaped handpiece of the 90 extruder to directly extrude an outer pipe rubber layer on the inner pipe rubber layer knitted with the fiber linear enhancement layer to produce a semi-finished siphonula; F, cutting off the siphonula, penetrating the cut siphonula into a die, and sending the siphonula into a vulcanizer for vulcanization. According to the method, the automotive oil conveying pipe is simple in production technology, low in cost, high in efficiency, excellent in fuel oil resistance, and wide in thermal resistance range.

Description

technical field [0001] The invention relates to an automobile oil pipeline, in particular to a manufacturing method of the automobile oil pipeline. Background technique [0002] Since the oil temperature of the fuel injection system of the engine is relatively high, and the temperature of the oil is different when the engine power is different, the higher the engine power, the higher the oil temperature. When the engine power exceeds 2.0T, the oil temperature exceeds 200 degrees. If the engine power is 1.4T, the cold end oil temperature will reach 100 degrees, and it can reach 120 degrees in an instant. Therefore, if the rubber hose has poor oil resistance, high temperature aging resistance, and low pressure, it is easy to cause cracks, aging, and damage after the car runs bumpy all year round. The cracked and damaged rubber tube is easy to leak fuel. If there is slight leakage, the engine will vibrate at idle speed during driving. In this case, the rubber tube must be dis...

AI Technical Summary

Problems solved by technology

It can be seen from this that if the rubber hose has poor oil resistance, high temperature aging resistance, and low pressure, it is easy to crack, age, and break after the car's bumpy operation all year round.

Cracked and damaged rubber tubes are easy to leak fuel. If there is a slight leak, the engine will vibrate at idling speed during driving. In this case, the rubber tube must be removed and replaced in time. If it is ignored or not found, Severe leakage will lead to high-temperature fuel injection, high-temperature fuel injection may cause fire and burn to the engine and even the entire vehicle, endangering personal safety