Pouring-type waterproof connector fabrication process

Abstract

The invention provides a pouring-type waterproof connector fabrication process. The pouring-type waterproof connector fabrication process is characterized by comprises following steps that a wire is connected with a plug into one body, and electric connection between the wire and the plug is guaranteed; the wire and the plug which are welded into one body are placed in a die cavity of an injection machine; the pouring port of the injection machine is arranged in the tail part, of a packing head, corresponding to the wire, and the injection moulding direction extends towards the plug along the length direction of the wire; injection moulding is started, the packing head takes TPE as the raw material, the TPE is heated to 180 degrees to be plasticized by the injection machine, the injection moulding pressure ranges from 5 Mpa to 8Mpa, the injection moulding speed is 5ml / min, and injection moulding is stopped until the die cavity is filled; the pressure in the step d is continuously maintained for pressure maintaining, the natural cooling is carried out for 30s; and demoulding is carried out. According to the invention, the fact that the electrical connector does not deviate, the packing head does not have bubbles and gapd, and is stable in performance, and the relatively-good waterproofness, resistance to acid and base and anti-vibration performance can be guaranteed.

Description

technical field [0001] The invention relates to an electrical connector, in particular to a manufacturing process of a casting type waterproof connector. Background technique [0002] Waterproof connectors generally include wires, plugs, and caps that cover the plugs where the wires are connected. Generally, there are two matching waterproof connectors, male and female, for plugging in to realize the connection and fixation of the two. After the two are connected , it is necessary to ensure that it meets a certain waterproof level, has certain acid and alkali resistance, vibration resistance, can meet the normal work under various temperatures, and is not prone to aging. The joints are connected, and then the Baotou covers the connection between the two through the form of casting. After pouring, the Baotou must be able to better cover the wires and plugs. Since the materials of the three are different, the bonding of the three The degree of precision is particularly import...

AI Technical Summary

Problems solved by technology

[0002] Waterproof connectors generally include wires, plugs, and caps that cover the plugs where the wires are connected. Generally, there are two matching waterproof connectors, male and female, for plugging in to realize the connection and fixation of the two. After the two are connected , it is necessary to ensure that it meets a certain waterproof level, has certain acid and alkali resistance, vibration resistance, can meet the normal work under various temperatures, and is not prone to aging. The joints are connected, and then the Baotou covers the connection between the two through the form of casting. After pouring, the Baotou must be able to better cover the wires and plugs. Since the materials of the three are different, the bonding of the three The degree of precision is particularly important. During production, the two need to be put into the plastic casting mold. In the prior art, the pouring point is located on the side wall of the Baotou. During the pouring process, the colloid is filled from the pouring point to the entire cavity. In the process of filling and feeding, due to the high working pressure of the colloid, the injection colloid can be filled in the mold in time. During the injection molding process, the colloid can easily cause a certain impact on the electrical connector, causing it to run away. This will affect the life of the product. After pouring is completed, after the Baotou is completely fused, when the sprue is broken, the Baotou will produce radial deformation, and gaps and air bubbles will easily occur between the Baotou and the wire, which will affect the Baotou and the wire and plug. The degree of adhesion affects the performance of the product in various aspects such as waterproof, acid and alkali resistance

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