CN110586846A - Temperature-controlled cooling process and equipment for forge piece - Google Patents

Abstract

The invention discloses a temperature-controlled cooling process and equipment for forgings, and relates to the technical field of forging processing. The steps of the temperature-controlled cooling process are: (1) taking out the forging after final forging and placing it on a mesh belt; (2) passing The blower is used to carry out a cooling treatment on the forging to be processed; (3) flip the forging after the treatment in step (2), and perform a second cooling treatment; (4) after the temperature control cooling treatment in step (3), The forgings are taken out from the mesh belt, placed in the air to cool naturally to normal temperature, and the finished forgings are obtained. The invention adopts a temperature-controlled cooling process, which does not require secondary heating and saves costs; the internal structure and grains of the forging are directly cooled when they are crushed by forging, avoiding the growth of grains caused by secondary heating, and compared with the metallographic and The grain size is more uniform, and the mechanical properties of the forging are higher than normal heat treatment.

Description

A temperature-controlled cooling process and equipment for forgings

technical field

The invention relates to the technical field of processing forgings, in particular to a temperature-controlled cooling process and equipment for forgings.

Background technique

Forgings refer to workpieces or blanks obtained by forging and deforming metal blanks. Forgings must be heat treated after forging. Heat treatment eliminates stress, prevents white spots on forgings, and improves the uniformity of chemical composition. Usually, heat treatment requires secondary heating, which increases resource consumption and high production costs; and secondary heating causes grain growth and reduces the mechanical properties of forgings.

Contents of the invention

The object of the present invention is to provide a forging temperature control cooling process and equipment in order to solve the above problems.

The present invention achieves the above object through the following technical solutions:

The invention provides a forging temperature control cooling process, the steps of the temperature control cooling process are:

(1) Take out the forging after final forging and place it on the mesh belt;

(2) The to-be-processed forging is subjected to a cooling treatment by a blower;

(3) turning over the forgings processed in step (2), and carrying out secondary cooling;

(4) Take out the forging after the temperature-controlled cooling treatment in step (3) from the mesh belt, and place it in the air to cool naturally to normal temperature to obtain the finished forging.

Preferably, in the step (2), the cooling rate of cooling is 9-12 degrees per second, and the cooling time of cooling is 40-50 seconds.

Preferably, in the step (3), the cooling rate of cooling is 3-5 degrees per second, and the cooling time of cooling is 22-26 seconds.

The present invention also provides a kind of equipment used for the temperature control cooling process of forgings, which includes a frame, one end of the frame is provided with a driving wheel, the other end of the frame is provided with a driven wheel, one side of the driving wheel is provided with a motor, and the driving wheel It is connected with the motor through a belt. There is a mesh belt between the driving wheel and the driven wheel. There is an air-cooled cover directly above the mesh belt. The top of the air-cooled cover is processed with through holes. Hydraulic cylinder, telescopic rods are installed on the hydraulic cylinder, support rods are provided on both sides of the air-cooled cover corresponding to the positions of the telescopic rods, the telescopic rods are fixedly connected to the support rods, blowers are installed on both sides of the frame, and the blowers are distributed alternately on both sides of the frame , the blower is connected with a pipeline, and the other end of the pipeline is provided with a nozzle, and the nozzle extends into the through hole of the air-cooled cover and is fixedly connected with the air-cooled cover.

Preferably, the retractable height of the telescopic rod is 0-30 cm.

Preferably, the air-cooled cover is approximately in the shape of a quadrangular prism.

Preferably, an air-cooled FM switch is provided on the end of the air-cooled cover close to the drive wheel, and a mesh belt FM switch is provided on the end of the frame close to the drive wheel.

The beneficial effect of the present invention is that: the present invention adopts the temperature-controlled cooling process without secondary heating, which saves cost; the internal structure and crystal grains of the forging are directly cooled when the forging is crushed, avoiding secondary heating to cause grain growth, The metallographic phase and grain size of the normal heat treatment are more uniform, and the mechanical properties of the forging are higher than the normal heat treatment; the equipment of the present invention can adjust the air cooling speed, and the air cooling efficiency is high; the distance between the air cooling cover and the forging can be adjusted to meet different air cooling requirements. Requirements: The equipment structure is simple and the maintenance cost is low.

Description of drawings

Fig. 1 is a front view of the device of the present invention.

Among them: 1. Air-cooled cover; 2. Air-cooled frequency modulation switch; 3. Nozzle; 4. Pipe; 5. Support rod; 6. Mesh belt; 7. Driven wheel; 8. Telescopic rod; 9. Hydraulic cylinder; 10. Blower; 11. Frame; 12. Mesh belt FM switch; 13. Driving wheel.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing:

As shown in FIG. 1 , the equipment for the temperature-controlled cooling process of forgings includes a frame 11 , a drive wheel 13 is provided at one end of the frame 11 , and a driven wheel 7 is provided at the other end of the frame 11 . One side of the driving wheel 13 is provided with a motor, and the driving wheel 13 is connected with the motor by a belt. A mesh belt 6 is provided between the driving wheel 13 and the driven wheel 7 . An air-cooled cover 1 is arranged directly above the mesh belt 6, and the air-cooled cover 1 is approximately in the shape of a square truss. The top of the air-cooled cover 1 is processed with through holes, and the through holes are distributed at equal intervals. Hydraulic cylinders 9 are arranged on both sides of the frame 11 . Hydraulic cylinder 9 is provided with telescopic rod 8, and the telescopic height of telescopic rod 8 is 0～30 centimeters. The two sides of the air-cooled cover 1 are provided with support rods 5 at positions corresponding to the telescopic rods 8 , and the telescopic rods 8 are fixedly connected to the support rods 5 . Blowers 10 are arranged on both sides of the frame 11, and the blowers 10 are alternately distributed on both sides of the frame 11. The blower 10 is connected with a pipe 4, and the other end of the pipe 4 is provided with a nozzle 3, and the nozzle 3 extends into the through hole of the air-cooled cover 1 and is fixedly connected with the air-cooled cover 1. The end of the air-cooled cover 1 close to the driving wheel 13 is provided with an air-cooled frequency modulation switch 2 , and the air-cooled frequency modulation switch 2 adjusts the air output of the blower 10 . On the frame 11, one end of the driving wheel 13 is provided with a mesh belt frequency modulation switch 12, and the mesh belt frequency modulation switch 12 regulates the rotating speed of the motor. During work, the forging to be cooled by temperature control is placed on the mesh belt 6 at one end of the driving wheel 13, the operation of the mesh belt 6 is controlled by the mesh belt frequency modulation switch 12, the air cooling speed is controlled by the air cooling frequency modulation switch 2, and finally the temperature is lowered. The processed forging is taken out from the mesh belt 6 at one end of the driven wheel 7.

Example 1

A temperature-controlled cooling process for forgings. The steps of the temperature-controlled cooling process are: (1) taking out the forging after final forging and placing it on a mesh belt; The cooling rate of cooling is 9 degrees per second, and the cooling time of cooling is 40 seconds; (3) the forgings processed in step (2) are turned over, and the second cooling process is carried out. The cooling rate of cooling is 3 degrees per second, and the cooling The cooling time is 22 seconds; (4) the forging after the temperature control cooling treatment in step (3) is taken out from the mesh belt, placed in the air and naturally cooled to normal temperature to obtain the finished forging.

Example 2

A temperature-controlled cooling process for forgings. The steps of the temperature-controlled cooling process are: (1) taking out the forging after final forging and placing it on a mesh belt; The cooling rate of cooling is 11 degrees per second, and the cooling time of cooling is 44 seconds; (3) the forgings processed in step (2) are turned over, and the second cooling process is carried out. The cooling rate of cooling is 4 degrees per second, and the cooling The cooling time is 24 seconds; (4) the forging after the temperature control cooling treatment in step (3) is taken out from the mesh belt, placed in the air and naturally cooled to normal temperature to obtain the finished forging.

Example 3

A temperature-controlled cooling process for forgings. The steps of the temperature-controlled cooling process are: (1) taking out the forging after final forging and placing it on a mesh belt; The cooling rate of cooling is 12 degrees per second, and the cooling time of cooling is 50 seconds; (3) the forgings processed in step (2) are turned over, and the second cooling process is carried out, and the cooling rate of cooling is 5 degrees per second. The cooling time is 26 seconds; (4) the forging after the temperature control cooling treatment in step (3) is taken out from the mesh belt, placed in the air and naturally cooled to normal temperature to obtain the finished forging.

The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Those skilled in the art can understand that various changes, modifications, substitutions and deformations can be made to these embodiments without departing from the principle and purpose of the present invention. The scope of the invention is defined by the claims and their equivalents.

Claims (7)

1. A temperature-controlled cooling process for forgings, characterized in that: the steps of the temperature-controlled cooling process are: (1) Take out the forging after final forging and place it on the mesh belt; (2) The to-be-processed forging is subjected to a cooling treatment by a blower; (3) turning over the forgings processed in step (2), and carrying out secondary cooling; (4) Take out the forging after the temperature-controlled cooling treatment in step (3) from the mesh belt, and place it in the air to cool naturally to normal temperature to obtain the finished forging. 2. A temperature-controlled cooling process for forgings according to claim 1, characterized in that: in the step (2), the cooling rate is 9-12 degrees per second, and the cooling time is 40-50 seconds. 3. A temperature-controlled cooling process for forgings according to claim 1, characterized in that: in the step (3), the cooling rate is 3-5 degrees per second, and the cooling time is 22-26 seconds. 4. A device for the temperature-controlled cooling process of forgings according to claim 1, comprising a frame, characterized in that: one end of the frame is provided with a driving wheel, the other end of the frame is provided with a driven wheel, and one side of the driving wheel is There is a motor, and the driving wheel and the motor are connected by a belt. There is a mesh belt between the driving wheel and the driven wheel. There is an air-cooled cover directly above the mesh belt. The top of the air-cooled cover is processed with through holes. There are hydraulic cylinders on both sides of the frame, telescopic rods on the hydraulic cylinders, support rods on both sides of the air-cooled cover corresponding to the positions of the telescopic rods, the telescopic rods are fixedly connected to the support rods, and blowers are installed on both sides of the frame. The two sides of the frame are distributed alternately in turn, the blower is connected with a pipe, and the other end of the pipe is provided with a nozzle, which extends into the through hole of the air-cooled cover and is fixedly connected with the air-cooled cover. 5. The equipment for the temperature-controlled cooling process of forgings according to claim 4, characterized in that: the telescopic rod can be stretched to a height of 0-30 cm. 6. The equipment for the temperature-controlled cooling process of forgings according to claim 4, characterized in that: the air-cooled cover is approximately in the shape of a square truss. 7. The equipment for the temperature-controlled cooling process of forgings according to claim 4, characterized in that: an air-cooled frequency modulation switch is provided on the end of the air-cooled cover close to the driving wheel, and a mesh belt frequency modulation switch is provided on the end of the frame close to the driving wheel .