CN106652768B

CN106652768B - Marking part for aluminum alloy product

Info

Publication number: CN106652768B
Application number: CN201710059496.3A
Authority: CN
Inventors: 赵永旺; 朱志华
Original assignee: CITIC Dicastal Co Ltd
Current assignee: CITIC Dicastal Co Ltd
Priority date: 2017-01-24
Filing date: 2017-01-24
Publication date: 2023-01-03
Anticipated expiration: 2037-01-24
Also published as: CN106652768A

Abstract

The invention provides an aluminum alloy product containing a marking part, which comprises an aluminum alloy body and the marking part embedded in the aluminum alloy body or on the surface of the aluminum alloy body, and is characterized in that: the marking component consists of a ring body (11), first-class permanent magnetic particles (12) and holes (13); the first type of permanent magnet particles (12) and the holes (13) are arranged on the ring body to form a one-dimensional circumferential line; part of the holes (13) contain permanent magnetic particles of a second type. The technical effect of the components of the present invention is that the marking of the wheel information can be achieved and the function of the cryptographic coding can be provided.

Description

Marking part for aluminum alloy product

Technical Field

The invention relates to the field of casting, in particular to a marking part for an aluminum alloy product.

Background

Under the traditional manufacturing industry framework, the coding management of the casting parts in the production process is difficult, and the tracking and monitoring of the casting after the casting is manufactured are also difficult. This is because the cast part will undergo a series of subsequent machining processes after leaving the mould, which makes it difficult for conventional marking methods to remain on the surface of the casting and continue to mark the casting.

In particular, in the field of wheel manufacturing, low-pressure casting, high-pressure casting and forging are mainly used in the industry for manufacturing. In the latest field, carbon fiber cloth is also manufactured by a mold curing method. After the wheel leaves the die, the wheel undergoes the processes of water cooling, aging, surface machining, shot blasting, coating and the like. During water cooling, the wheel will be soaked in hot water. During aging, the wheel will be maintained in a heated environment for a period of time. During surface machining, a layer of metal from the wheel surface is removed by a lathe. During the shot blasting process, a large amount of abrasive materials are used for striking and grinding the surface of the wheel. In the coating step, the coating material is repeatedly sprayed and heated to be cured on the wheel. In view of the above machining process, the skilled person is unable to machine and track individual wheels by any existing means. If the surface of the wheel is stuck with the rubber strip of the two-dimensional code, the rubber strip is lost in the processes of water cooling and aging. Even if the adhesive tape is replaced by metal or ceramic material, the adhesive tape still has difficulty in escaping from the surface machining process. If the wheel is marked by a tether, the surface machining process is affected.

In production, with the advancement of industry 4.0 and the development of big data mining, production tracking and monitoring of individual wheels is a technology that is expected to be implemented in the industry.

Disclosure of Invention

It is therefore an object of the present invention to provide a marking element for a vehicle wheel.

In order to achieve the above object, the present invention provides the following technical solutions:

in one aspect of the present invention, there is provided a marker component for an aluminium alloy product, characterized in that: the marking component consists of a ring body (11), first-class permanent magnetic particles (12) and holes (13); the first type of permanent magnetic particles (12) and the holes (13) are arranged on the ring body to form a one-dimensional circumferential line; part of the holes (13) contain second type permanent magnetic particles inside; the difference between the residual magnetic induction intensity of the first type of permanent magnetic particles and the residual magnetic induction intensity of the second type of permanent magnetic particles is more than 50%.

In a preferred aspect of the invention, said first type of permanent magnetic particles (12) are arranged equidistantly on the circumference and comprise between 4 and 16 first type of permanent magnetic particles (12) on the circumference.

In a preferred aspect of the invention, between two permanent magnetic particles of the first type (12), 3-20 holes (13) are comprised.

In a preferred aspect of the invention, adjacent holes (13) between two permanent magnetic particles (12) of the first type have the same distance between them.

In a preferred aspect of the invention, the circumferential line comprises 5 uniformly distributed first-type permanent magnet particles (12), and 5 uniformly distributed holes (13) are distributed between every two first-type permanent magnet particles (12).

In a preferred aspect of the invention, the first type of permanent magnet particles (12) and the second type of permanent magnet particles are made of a high temperature resistant permanent magnet alloy.

In a preferred aspect of the invention, the high temperature resistant permanent magnetic alloy maintains the magnetic property loss within 60 percent for 2 hours at the temperature of 750-760 ℃.

In a preferred aspect of the invention, the second type of permanent magnetic particles are arranged in the next clockwise hole (13) of one of the first permanent magnetic particles (12), and the second type of permanent magnetic particles are not arranged in the next clockwise hole (13) of the rest of the first permanent magnetic particles (12).

In a preferred aspect of the present invention, the first and second permanent magnet particles are made of a nickel-based permanent magnet alloy. However, as long as the condition that the high-temperature resistant permanent magnet alloy keeps the loss of magnetism within 60 percent for 2 hours at the temperature of 750-760 ℃ is met, other high-temperature resistant permanent magnet alloys can be used, as known by the technical personnel in the field.

When the marking member of the present invention is provided below the surface of the aluminum alloy member, it may be embedded in a mold in advance. The manner in which the components are embedded within the mold is known to those skilled in the art. The embedding may be accomplished by lost foam, in-mold fixings, and the like.

The technical effect of the components of the present invention is that the marking of the wheel information can be achieved and the function of the cryptographic coding can be provided.

Drawings

Embodiments of the invention are described in detail below with reference to the attached drawing figures, wherein:

FIG. 1: a schematic structural view of a marking member for aluminum alloy products of example 1 of the present invention;

in the figure: 11-a ring body; 12-first type permanent magnetic particles; 13-hole.

Detailed Description

Unless otherwise stated, the first and second types of permanent magnet particles of the present invention are made of a Co52V12 superalloy. The high-temperature alloy is purchased from Shangguan Shangwang metal material line.

Example 1

The marking component consists of a ring body (11), first-class permanent magnetic particles (12) and holes (13); the first type of permanent magnetic particles (12) and the holes (13) are arranged on the ring body to form a one-dimensional circumferential line; part of the holes (13) contain permanent magnetic particles of a second type. The circumference line comprises 5 uniformly distributed first-class permanent magnet particles (12), and 5 uniformly distributed holes (13) are distributed between every two first-class permanent magnet particles (12). The difference between the residual magnetic induction intensity of the first type of permanent magnetic particles and the residual magnetic induction intensity of the second type of permanent magnetic particles is more than 50%. The first permanent magnetic particles and the second permanent magnetic particles are made of nickel-based permanent magnetic alloy.

Since the permanent magnetic particles (12) of the first type and the holes (13) form a one-dimensional ring structure, the head of the permanent magnetic particle can be expressed by using a character string as long as the head is determined. The magnetic properties of the first type of permanent magnetic particles (12) are stronger than the magnetic properties of the second type of permanent magnetic particles contained in the holes (13), and the difference in magnetic properties can be measured.

In one possible embodiment, the arrangement described in Table 1 is used.

Table 1: first magnetic particle arrangement mode

The numbering of each trellis is in the form of column-row numbers. For example, a grid with column number a and row number 1 is named A1. In the mode arranged according to the table, the following rules apply:

(1) A1-A5 are all the first type of permanent magnetic particles. The five-apart permanent magnetic particles of the first type act as markers during the measurement and interpretation of the component. If no information is read from the first type of permanent magnet particles after a given distance has been experienced, it may be judged that the reading is problematic, and it may be necessary to discard the set of data, or to revert to a new reading. This region is called the "sector inspection zone".

(2) B1-B5, wherein B1 is provided with second type permanent magnetic particles, and the rest are all hollow holes. Since the next permanent magnetic particle of the first type to the second type is unique in the clockwise direction, we can use this as the head of all data after scanning the whole part. This region is called the "head mark region". At the same time, the head marker region may also serve the function of a "sector check region".

(3) Whether the second type of permanent magnetic particles exist in the hollow holes in the areas of C1-C5, D1-D5, E1-E5 and F1-F4 can be set at will. This results in a 20-bit binary space in which the second type of permanent magnet particles are marked 1 and none are marked 0. With respect to the representation of fig. 1, we can write the information carried by the whole part as:

1010 0101 0100 1000 0010

in this way, a code space of 1048576 codes is obtained, and products can be numbered and marked sequentially. When the number of products is less than million, the aluminum alloy products can be marked. By reading the magnetic particle data of the ring portion, the identity of the product can be identified.

It should be understood by those skilled in the art that the components described in the present embodiment are not limited to the above arrangement, and specifically, the arrangement carrying the information "1010 0101 0100 1000 0010". It may randomly choose 0 and 1 on each bit and carry a large amount of unique information.

Since the marking member is located actually below the surface of the aluminum alloy, it is unlikely to be tampered with, and is unlikely to be affected during machining and shot blasting, which ensures the stability of the marking.

Any hand-held or automated magnetic reading instrument can be used to read the data when it is read.

Example 2

Similar to the arrangement of example 1, except that the number of the first type of permanent magnetic particles was increased to 12 and the number of the holes was increased to 8.

For convenience of tabulation, we will refer to the first type of permanent magnet particles as "X", the second type of permanent magnet particles as "Y", and the void as "0", and a component of this embodiment is shown in table 2.

Table 2: second magnetic particle arrangement mode

The arrangement is characterized in that:

(1) A1-A12 are permanent magnetic particles of the first type and thus function as a similar "field examination zone".

(2) Only B1 of B1-B12 is filled with the second type of permanent magnetic particles, and B2-B12 are hollow holes. This area is called the "header mark area" where the two lattices A1-B1 are the headers of all the data. At the same time, the head marker region may also serve the function of a "sector check region".

(3) The C-I column is a data area. According to the specific settings of the above table, it carries the information:

it should be understood by those skilled in the art that the components described in the present embodiment are not limited to the above arrangement, and specifically, an arrangement for carrying information. It may randomly choose 0 and 1 on each bit and carry a large amount of unique information.

The above information has 84 bits in total, and a cipher space with the capacity of 19342813113834066795298816 is formed. One aspect of this can be used as numbering for very large data volumes, while it can also provide corresponding functions for product coding and cryptography.

In one particular arrangement, using the codes of lines 1-4 as the product code region and the codes of lines 5-12 as the code region, we can obtain such product codes and codes:

product coding:

the coding space of the product code is 268435456, and the product code can meet the requirements of most cases.

And (3) password encoding:

the coding space of the cipher coding is 7.21 x 10 ¹⁶ . The strength of the code is enough to meet the anti-counterfeiting requirement in most cases. Meanwhile, the anti-counterfeiting can be realized by the requirements of the processing technology. The processing technology is combined with the code anti-counterfeiting, so that a strong anti-counterfeiting function can be realized.

In the production of a product, the marking member of the present embodiment is first manufactured according to a certain coding rule, and the marking member of the present embodiment is embedded below the surface of the aluminum alloy member or in a position close to the surface. When a given product is inspected on the market, the device described in embodiment 1 is used for measurement, product coded data and password coded data are obtained, and then verification is carried out.

Claims

1. A marker component for an aluminum alloy product, characterized by: the marking component consists of a ring body (11), first-class permanent magnetic particles (12) and holes (13); the first-class permanent magnet particles (12) and the holes (13) are arranged on the ring body to form a one-dimensional circumferential line, the first-class permanent magnet particles (12) are arranged in an equidistant mode on the circumferential line, and 4-16 first-class permanent magnet particles (12) are arranged on the circumferential line; part of the holes (13) contain second type permanent magnetic particles inside; the difference between the residual magnetic induction intensity of the first type permanent magnetic particles and the residual magnetic induction intensity of the second type permanent magnetic particles is more than 50%, and the first type permanent magnetic particles (12) and the second type permanent magnetic particles are both made of Co52V12 high-temperature alloy.

2. A marking element according to claim 1, characterized in that between two permanent magnetic particles (12) of the first type, 3-20 holes (13) are included.

3. Marking element according to claim 1, characterized in that adjacent holes (13) between two permanent magnetic particles (12) of the first type have the same distance therebetween.

4. A marking element according to claim 1, characterized in that the circumferential line comprises 5 uniformly distributed permanent magnetic particles (12) of the first type, and that between every two permanent magnetic particles (12) of the first type 5 uniformly distributed holes (13) are provided.

5. The marking element of claim 1, wherein said Co52V12 superalloy exhibits a magnetic loss within 60% after 2 hours at a temperature of 750-760 degrees celsius.

6. A marking element according to claim 1, characterized in that one of said first type of permanent magnetic particles (12) is provided with a second type of permanent magnetic particles in the hole (13) which is located next to the clockwise direction, and the remaining first type of permanent magnetic particles (12) are provided with no second type of permanent magnetic particles in the hole (13) which is located next to the clockwise direction.