RU114195U1 - IDENTIFIER FOR PIPE PRODUCTS WITH ANTI-CORROSION INSULATION COATING - Google Patents

Abstract

An identifier for tubular products with an anticorrosive insulating coating, made with the possibility of contactless reading, characterized in that the identifier is made in the form of an electrically conductive plate, in the form of which information about the product is encoded so that it can be read by an eddy current sensor.

Description

The utility model relates to the field of marking of tubular products for various purposes, having an anti-corrosion insulation coating, for their identification during operation.

Reliable, long-term marking identifies the tubular product over its entire service life, which can last for decades. This allows you to evaluate the residual life of the product, track the history of operation, etc.

The most common methods for marking pipe products are applying marks on the pipe surface with paint (see SU No. 1733156A1, MKI B21C 51/00, publ. 15.05.1992), as well as shock-point technology, for example, using the MULTI 4 device ( see http://mirprom.ru, article: "Shock-spot industrial marking of metal products", published on 06/10/2010 // TECHNOMARK Representative Office). Shock-point industrial technology is the application of individual points (spherical recesses) with a carbide punch on various types of materials under the control of an electronic controller. The marking punch is driven by an electromagnet.

The disadvantages of the known marking methods are as follows. Shock-dot marking damages products, creates stress concentrators in them. The exposed surface of the metal on which the marking is applied is subject to corrosion, as a result of which the marking may be lost during long service life. Marking with paint has an even shorter service life and may be lost even at the stage of transportation of the product into operation during loading and unloading operations.

Recently, electronic identifiers (patent No. 48655, IPC G06K 17/00, publ. 10/27/2005) made in the form of tablets or smart cards, the identification data from which are read by the magnetic or radio frequency principle, have been used to mark pipe products with a corrosion-resistant insulation coating. . Moreover, these identifiers are hermetically placed inside the coating while maintaining its properties. The disadvantage of this marking is that the electronic identifier at the place of its location must have a protective pad made of a material that protects the identifier from possible damage during operation, transportation, loading and unloading and construction of pipelines, in addition, the specified material must have radio transparency. The implementation of the electronic identifier in the form of a semiconductor chip limits its service life, since the chip may be damaged by external influences, for example, from ionizing radiation. The specified device is selected as a prototype.

The technical results achieved by the implementation of the claimed utility model are to increase the safety of the identifier, increase the service life and increase the reliability of storage of encoded information.

These technical results are achieved by the fact that the identifier for pipe products with an anti-corrosion insulating coating is made in the form of an electrically conductive plate in the form of which product information is encoded, which can be read by an eddy current sensor.

The eddy current method allows contactless reading of information encoded in the form of an electrically conductive plate placed in the thickness of the anticorrosive insulation coating. In this case, the plate remains a passive element with an unlimited service life and high reliability of information storage, in contrast to the identifier recognized by the radio frequency method.

Figure 1 shows an embodiment of the identifier. Figure 2 shows the layout of the identifier in the tubular product.

The identifier item 1 is made in the form of an electrically conductive plate, for example, of a metal foil or metallized film, in the form of which information about the tubular product item 4, which must be identified, is encoded, coated with a layer of a protective anticorrosive non-conductive coating item 3. The plate can be made in the form of, for example, an image of a manufacturer’s trademark or contain notches of pos. 2 of variable width, similar to a barcode, etc.

The identifier, item 1 with encoded information about the unique number of the pipe product, item 4 is placed in the layer of the protective coating item 3 without the formation of voids and delamination of the coating, without thickening and solid seals in the installation area with the least probability of damage during storage and transportation of the pipe product , as well as in the construction and operation of pipelines. The encoded information is read in a non-contact manner using an eddy current sensor.

The design of the identifier, the information encoded on it, as well as its installation location provide an almost unlimited service life due to resistance to external influences, including ionizing radiation.

Claims (1)

Identifier for tubular products with an anti-corrosion insulating coating, made with the possibility of non-contact reading, characterized in that the identifier is made in the form of an electrically conductive plate in the form of which information about the product is encoded with the possibility of reading it by an eddy current sensor.