KR100886566B1 - Heat treating method including coloring work - Google Patents

Abstract

A heat-treating method including a coloring work is provided to improve manufacturing cost and accuracy of a task by consecutively performing coloring, filming, thermal process and anti-rust in one place. A heat-treating method including a coloring work comprises: a process(a) washing a metal element in a washing device(1) with the washing water of 60°C for 10 minutes; a process(b) transferring the metal element to a transfer conveyor(13) and drying the metal element with an air jet device(2); a process(c) coloring the metal element dried with staining solution of 180~200°C in a coloring device(3) for 10 minutes; a process(d) transferring the metal element to the transfer conveyor and drying the staining solution with the air jet device; a process(e) heat-treating the metal element in a heating treatment device(4); a process(f) transferring the metal element to the conveyor and cooling the metal element with the air jet device; a process(g) anti-rusting the cooled metal element with the anti-rust solution of 20~30°C in a anti-rust device(5) for 10 minutes; and a process(h) discharging the metal element to the transfer conveyor and drying the metal element with the air jet device.

Description

Heat treating method including coloring work}

The present invention relates to a heat treatment method including a coloring work, and in particular, to continuously and automatically perform the coloring and coating work, heat treatment work and rust prevention work of various industrial metal parts to maximize the speed and efficiency of the work, and further, the production cost of parts It was invented with the purpose to zoom significantly.

In general, automotive parts or metal parts for industrial construction (such as bolts or washers or car wrenches) are used for heat treatment and strengthening of parts for coloring, and for forming coatings on parts and corrosion of parts. Antirust will be prevented to prevent oxidation.

(However, some metal parts may be selectively performed as necessary.)

However, in order to perform the above work with the above-mentioned metal parts, there has been a hassle of having to perform the work separately in a company that is building each process.

In more detail,

Conventionally, in the production of industrial parts, metal parts are first manufactured in steel or casting, and then color, film, heat treatment, and rust prevention work are selectively performed.

At this time, the above-described work process is to perform the above work on the metal parts while sequentially going through the company in which the device for each process is built.

That is, in case of performing coloring, heat treatment, rust prevention work with steel or cast metal parts,

First, the metal parts are colored in a specific color by a company that has a coloring process, and then naturally dried for a predetermined time, and then transported to a company that has a heat treatment process.

Then, in the company in which the heat treatment process is established, the heat treatment is performed on the colored metal parts, and then, the same is transported to the company in which the rust prevention process is established so that the rust prevention work is performed.

As described above, the conventional method employs a method of separately carrying and transporting a plurality of operations in a company in which each process is established, so that the continuity of the work is very low, so that the efficiency of the production of metal parts is greatly reduced and required. The time loss was very large,

Moreover, due to the separate work performed by each company, it was impossible to link the metal parts correctly, and the defective rate of the metal parts was very high. Also, due to the huge loss of transportation costs due to transportation, the production cost increased due to high oil prices and the price fluctuations in the global metal market. It was a situation that had a problem bringing.

The present invention has been invented to solve this conventional problem, and in particular,

By presenting a method that can continuously and automatically perform metal parts coloring, coating, heat treatment, and rust prevention work in one place, increasing the efficiency of the work and maximizing the speed of work, and further increasing the production rate of metal parts and significantly reducing the manufacturing cost. To make it work.

In order to solve this problem, in the present invention,

A washing step (a) of putting steel or cast metal parts into a washing device (1) and washing them with washing water at 60 ° C. for 10 minutes;

A first drying step (b) of transferring the washed metal parts to a conveying conveyor (13) and drying them with an air spraying device (2);

A coloring step (c) of adding the dried metal part to a coloring device (3) for coloring for 10 minutes with a coloring solution at 180 ° C. to 200 ° C .;

A second drying step (d) of transferring the colored metal parts to a conveying conveyor (13) and drying the colored solution with an air spraying device (2);

A heat treatment step (e) of injecting the colored metal part into a heat treatment apparatus 4 and performing heat treatment;

A cooling step (f) of transferring the heat treated metal parts to a conveyor (42) and cooling them with an air spraying device (2);

An anti-rusting step (g) of injecting the cooled metal parts into the rust-preventing device (5) and rust-preventing for 10 minutes with an anti-corrosive solution at 20 ° C to 30 ° C;

The third drying step (h) for discharging the rust-prevented metal parts to the conveying conveyor 13 and drying them with the air spraying device 2 is continuously performed automatically.

As described in the above description, the present invention continuously and automatically performs the coloring, coating, heat treatment, and rust prevention processes of automobile parts or metal parts for industrial construction in one place.

Increasing the efficiency of work and maximizing the speed of work, further increasing the production rate of metal parts and remarkably reducing the manufacturing costs, as well as allowing the continuous operation of many of the processes previously performed by several companies in one place to obtain a higher quality product. It was made.

This will be described below in detail with the accompanying drawings.

According to the present invention, the coloring, coating, heat treatment, and rust-preventing operations performed on automobile parts or metal parts for industrial construction are performed in the washing process, the first drying process, the coloring process, and the second drying process. , Automatic heat treatment process, cooling process, rust prevention process, and third drying process.

In more detail,

Metal parts are usually coated with a coating process such as a coloring process or a coating film after the production of steel or casting, and then subjected to a heat treatment after heat treatment.

* Metal parts may optionally be colored, coated, dried, heat treated or rust prevented depending on their purpose.

Therefore, the present invention when the coloring, heat treatment, rust prevention work with the metal parts as described above,

First, as shown in FIG. 1, the metal parts are put into the washing apparatus 1 and washed with 60 ° C. washing water (alkaline water) for 10 minutes to remove foreign matters from the metal parts. .

Here, the washing apparatus 1 includes a washing tank 1 'for storing the washing water as shown in an enlarged view of FIG. It consists of a conveying conveyor (13) for transferring the metal parts in the (1 ') to the next process,

At this time, the washing tank (1 ') is inclined to attach the conveyor mounting unit 12 to both sides of the inner side so that one end is located on the upper side of the washing tank (1') and the other end is located on the inner bottom of the washing tank (1 ') To make the conveyance conveyor 13 of the same shape is installed between the conveyor mounting table 12,

The conveying conveyor 13 constitutes the conveying belt 13 'by a stainless steel mesh, and then both ends thereof are axially coupled with both ends of the conveyor mounting stand 12 so as to be rotated by the driving motor 14, and at the same time the The transfer belt 13 'is configured to be rotated obliquely by being caught / guided by the guide stand 12' protruding from the inner side of the conveyor mount 12,

The washing water spraying unit 11 forms a plurality of injection holes 11 'in the lower longitudinal direction thereof, and is disposed above the center of the conveying conveyor 13 so as to be connected to the high-pressure spray pump 13a.

Then, in the washing process, a large amount of metal parts are put into a washing tank in which washing water at 60 ° C. is stored, transferred to a conveying conveyor, and at the same time, the metal parts are washed at a high pressure with a plurality of washing water spraying units formed thereon.

At this time, the metal parts put into the washing tank are washed while taking a total of about 10 minutes to add, wash and discharge by the rotational speed of the transfer conveyor.

After the washing step (a), the metal parts are transferred to the next step (coloring step) by the transfer conveyor 13, and the first drying step (b) is performed by the air spraying device (2). .

Here, the air spraying device 2 comprises a plurality of air spraying nozzles 22 connected to the air pump 21 on the conveying conveyor 13 of the washing device 1, a plurality of washing water spraying station (11) Dry the metal parts washed by) with high pressure air.

In addition, the metal part that has passed through the first drying step (b) is automatically introduced into the coloring device 3 by the transfer conveyor 13, the coloring step of coloring for 10 minutes with a coloring solution of 180 ℃ ~ 200 ℃ (c ).

Here, the coloring apparatus 3 includes a coloring tank 31 in which a coloring solution is stored as shown in FIG. 2, a plurality of coloring solution spraying tables 32 for spraying the coloring solution on a metal part at high pressure, and a coloring tank ( 31) is composed of a conveying conveyor 13 for transferring the metal parts introduced into the next process, which is different from the name and code of the washing apparatus 1 described above, but the configuration and operation is made the same.

Therefore, detailed configuration description of the coloring device 3 is omitted.

Therefore, the coloring step (c) stores a coloring solution having a specific color in the coloring tank 31 to color the metal parts introduced from the washing apparatus 1 for a predetermined time, and then heat treatment step through the conveying conveyor 13 again. to (e),

At this time, when the colored metal parts are transferred to the heat treatment process (e) through the conveying conveyor 13 of the coloring device 3, a plurality of colored solution spraying table 32 formed on the conveying conveyor 13 is colored. Spray the solution at high pressure to more firmly color the metal parts.

In addition, the coloring device may selectively store a coloring solution or a coating agent in the coloring tank to selectively perform the coloring work or coating (coating) work of the metal parts.

For example, metal parts may be color-heat treated or film-heat treated as necessary. If the color-heat treatment is carried out, the above method is carried out, and in the case of the film-heat treatment, instead of the coloring solution. The coating agent may be stored to selectively perform the above operation.

In addition, the metal parts, after the coloring step (c) is transferred to the next step (heat treatment step) by the conveying conveyor 13 of the coloring device (3), the air spraying device (2) formed on the conveying conveyor (13) ), The second drying step (d) is carried out.

Here, the air spraying device 2 has the same construction and operation as the air spraying device 2 presented in the first drying step (b), and detailed description thereof will be omitted.

When the coloring process (c) and the second drying process (d) are completed with the metal parts, the metal parts are automatically fed into the heat treatment apparatus 4 by the transfer conveyor 13 of the coloring apparatus 3, and the heat treatment process is performed. (e).

Here, the heat treatment apparatus 4 generally refers to a heat treatment apparatus that is widely used. The heat treatment chamber 41 and the heat treatment chamber 41 that generate high heat are usually generated by a plurality of electric heaters (not shown). It consists of a conveyor 42 passing through.

Therefore, in the heat treatment step (e), the metal parts introduced through the conveying conveyor 13 of the coloring apparatus 3 are made to pass through the heat treatment chamber 41 by the conveyor 42 of the heat treatment apparatus 4 so that the metal parts 450 Heat treatment is carried out at a high temperature of ℃ ~ 650 ℃.

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Of course, the heat treatment apparatus may be optionally used as a high heat drying apparatus in addition to the heat treatment of the metal parts.

That is, the metal part may be color-heated or color-dried as necessary. If the color-heat treatment is performed, the metal part may be heat-treated at the above-mentioned temperature. 200 ° C. to 300 ° C.) to perform heat treatment and drying operations.

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In addition, the metal parts after the heat treatment step (e) are transferred to the next step (rust prevention step) through the conveyor 42 of the heat treatment device 4, and the cooling step (f) is carried out by the air injection device (2). do.

The air spraying device 2 is configured by installing a plurality of air spraying nozzles 22 connected to the air pump 21 on the installation frame on the discharge side of the heat treatment apparatus 4, as shown in FIG. The metal parts transferred through the conveyor 42 are cooled by air.

In addition, the metal parts cooled after the heat treatment are automatically introduced into the rust preventing apparatus 5 through the conveyor 42 of the heat treatment apparatus 4, and the anti-rust process (g) is performed with an rust preventing solution of 20 ° C. to 30 ° C. for 10 minutes. Done.

Here, the rust preventive device 5 corresponds to the configuration of the cleaning device 1 shown in FIG. 2, and the rust preventive tank 31 in which the rust preventive agent is stored and the metal parts introduced into the rust preventive tank 31 are transferred to the next process. Consisting of the conveying conveyor 13, there is a difference between the name and code of the washing device 1 described above, but made of the same configuration.

Therefore, detailed configuration description of the rust preventive device 5 will be omitted.

The rust preventive apparatus 5 stores the rust preventive agent in the rust preventive tank 51 to rust-proof the metal parts introduced from the heat treatment apparatus 4 for a predetermined time and then discharges them to the transfer conveyor 13.

At this time, the rust preventive work is to prevent the corrosion of the metal parts.

In addition, the metal parts having finished the rust-preventing process (g) are discharged to the outside through the conveying conveyor 13 of the rust-preventing device 5, and the third drying is performed by the air spraying device 2 configured at the upper portion of the conveying conveyor 13. Process (h) is performed and work is completed.

Here, the air spraying device 2 has the same construction and operation as the air spraying device 2 presented in the first drying step (b), and detailed description thereof will be omitted.

In addition, the present invention in order to perform the process sequentially, according to the type of metal parts, by inputting the information to the control unit (not shown in the drawing) so that the continuous operation can be made automatically.

As described above, according to the present invention, the color, film, heat treatment, and rust preventive operations are performed separately for each company, thereby reducing productivity and product cost due to connection problems, transportation problems, and reduced work efficiency of metal parts. Ascending problems are solved at once by the above method, so that a larger amount of work can be efficiently performed in a short time.

Moreover, the coloring or coating work, heat treatment work, and anti-rust work are continuously performed in one place to increase the precision of the work as well as to reduce the manufacturing of the parts, and to provide the features that can be selectively performed as needed. Done.

1 is an overall process diagram of the present invention,

Figure 2 is a device of the washing process and drying process presented in the present invention,

Figure 3 is an enlarged view of a part of the washing step and the drying step proposed in the present invention.

* Code descriptions for the main parts of the drawings

a: washing process b: first drying process

c: coloring process d: second drying process

e: heat treatment process f: cooling process

g: Antirust process h: 3rd drying process

1: washing device 1 ': washing tank

11: washing water spraying station 11 ': injection hole

12: conveyor mounting stand 12 ': guide stand

13: conveying conveyor 13 ': conveying belt

13a: high-pressure jet pump 14: drive motor

2: Air injection device 21: Air pump

22: air spray nozzle 3: coloring device

31 Coloring tank 32 Coloring solution spray table

4 heat treatment apparatus 41 heat treatment chamber

42: conveyor 43: installation frame

5: antirust device 51: antirust tank

Claims (1)

A washing step (a) of inserting steel or cast metal parts into a washing device (1) and washing with washing water at 60 ° C. for 10 minutes; A first drying step (b) of transferring the washed metal parts to a conveying conveyor and simultaneously drying the washed metal parts with an air spraying device; A coloring step (c) of adding the dried metal part to a coloring device (3) and coloring the same with a coloring solution at 180 ° C. to 200 ° C. for 10 minutes; (D) a second drying step of transferring the colored metal parts to a conveying conveyor and drying the colored solution with an air spraying device; A heat treatment step (e) of injecting the colored metal part into the heat treatment apparatus 4 for heat treatment; A cooling step (f) of transferring the heat treated metal parts to a conveyor and cooling the same by an air spraying device; An anti-rusting step (g) of putting the cooled metal parts into an rust-preventing device and rust-preventing for 10 minutes with an anti-corrosive solution at 20 ° C. to 30 ° C .; While discharging the rust-prevented metal parts to a conveying conveyor and at the same time a third drying step (h) for drying with an air spraying device is performed, The metal parts are immersed in the coloring tank 31 of the coloring device 3, and the entire surface of the metal parts is first colored using a coloring solution, and then transferred to the conveying conveyor 13 of the coloring device 3. Secondary color using a plurality of colored solution spraying table 32 for spraying the colored solution when And heat-treating the metal parts at 450 ° C. to 650 ° C., and then cooling them with a plurality of air spray nozzles 22 to continuously prevent rust treatment.

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