Continuous wire feed tube constrained wire explosion spraying device

Abstract

Disclosed is a continuous wire feed tube constrained wire explosion spraying device. A conveyer belt (9) is driven by a deputy drive composed of a driving wheel (1) and a pressure roller (8) through a heading tape mechanism (2) and a driven wheel (12). A high voltage electrode (11) and a low voltage electrode (10) are inlaid in lower semicircular surfaces of spray guns (13) at the same straight line. The low voltage electrode (10) is connected with a low-voltage end of a capacitor. The heading tape mechanism (2) is composed of two stoppers (14) and a heading tape wheel (17). The two stoppers (14) are symmetrical about the heading tape wheel (17) and installed on the rotating shaft (17') of the heading tape wheel. A circular gap (9') is arranged at a certain distance (L) in the middle of the conveyer belt (9) along its transmission direction. Foldable straight slots are arranged between two adjacent gaps along the transmission direction. The conveyer belt (9) is moved by a concave-groove of the heading tape wheel (17) between the two stoppers (14). A metal wire (6) is compressed tightly by a directive wheel (3) and a tension wheel (5) and is conveyed between the heading tape wheel (17) and the conveyer belt (9).

Description

technical field [0001] The invention belongs to the technical field of thermal spraying. Background technique [0002] Electric explosion spraying technology is a kind of thermal spraying technology, which can enhance the wear resistance and corrosion resistance of the material surface. It uses the high temperature and high speed metal particles generated during the electric explosion of the metal wire to hit the surface of the metal material to form a coating. The special thing is that both the heat source and spraying power required for the explosion are the wire itself. [0003] There are mainly two types of wire electric explosion spraying equipment that exist at present, one is used for the preparation of the inner surface coating of circular tubular workpieces, and the other is used for the preparation of flat coatings. They all reliably fix the metal wire on the electrodes at both ends of the tubular workpiece first. The metal wire is located in the inner cavity of ...

AI Technical Summary

Problems solved by technology

There are two problems in this method. One is that the metal wire is in contact with the electrode, and there is electrode ablation; the other is that the spray material cannot be automatically sent between the two electrodes, and a manual method is required to fix the metal wire between the two electrodes. , the operation process is cumbersome, and due to the limited spraying distance when preparing the coating on the inner surface of the workpiece, it is necessary to continuously adjust the distance from the wire to the substrate surface to prepare the coating on the inner surface of the large workpiece, which limits its application to a large extent. Application in engineering

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