CN115976315A

CN115976315A - Heat treatment equipment and process for geological core coring pipe material

Info

Publication number: CN115976315A
Application number: CN202211669787.1A
Authority: CN
Inventors: 方坤; 顾光辉
Original assignee: Aopuluo Drilling Tools Wuxi Co ltd
Current assignee: Aopuluo Drilling Tools Wuxi Co ltd
Priority date: 2022-12-25
Filing date: 2022-12-25
Publication date: 2023-04-18

Abstract

The invention discloses a heat treatment device for a material of a geological core taking pipe, which comprises a base, wherein a working furnace is fixedly connected to the upper end surface of the base, the working furnace is arranged in a U shape, steel is arranged in the working furnace, grid plates are arranged at one end, close to the base, of the steel and at the end, far away from the base, of the steel, the two grid plates are arranged in a mode of being attached to the outer wall of the steel, mounting plates are fixedly connected to the side walls of the two ends of the two grid plates, the four mounting plates are arranged in a pairwise symmetry mode, mounting holes are formed in one ends, far away from the two grid plates, of the four mounting plates, the four mounting holes are arranged in a pairwise symmetry mode, and two mounting bolts penetrate through the four mounting holes together. The invention optimizes the traditional heat treatment process, further improves the hardness, strength, toughness and wear resistance of the pipe material, thoroughly solves the problem that the pipe is easy to crack, and simultaneously leads the heat treatment work of taking and placing the material to be more convenient to finish by the invention.

Description

Heat treatment equipment and process for geological core coring pipe material

Technical Field

The invention relates to the technical field related to geological drilling, in particular to heat treatment equipment and process for a core-taking tube material of a geological core.

Background

40MnB, an alloy structural steel, has higher strength, hardness, wear resistance and good toughness, and is a more successful steel grade to replace 40Cr steel. Medium carbon quenched and tempered steel and cold heading grinding tool steel. The steel has moderate price and easy processing, and can obtain certain toughness, plasticity and wear resistance after proper heat treatment. Normalizing can promote tissue spheroidization and improve the cutting performance of the blank with the hardness of less than 160 HBS. The steel is tempered at the temperature of 550-570 ℃, and the steel has the best comprehensive mechanical property. The hardenability of the steel is higher than 45 steel, and the steel is suitable for surface hardening treatment such as high-frequency quenching, flame quenching and the like.

Because of the excellent material characteristics of 40MnB, the 40MnB material is often used as the equipment related to geological drilling in modern industry, wherein the 40MnB material is an important component of geological drilling equipment, before the production and processing of the geological core coring inner tube, the corresponding 40MnB needs to be subjected to specified heat treatment, but the 40MnB material produced by the existing heat treatment process has insufficient strength, hardness, toughness and wear resistance, the cracking problem of the geological core coring inner tube produced by the material is easy to occur, which is very unfavorable for the geological drilling, and the heat treatment of the 40MnB by the existing equipment is that a simple heating furnace is inconvenient for taking and placing large steel, and meanwhile, the problem of uneven heating of different positions of the large steel is easy to occur, which is very unfavorable for the heat treatment.

To this end, we propose a device and a process for the thermal treatment of a material of a geological core tube to solve the above problems.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides equipment and a process for heat treatment of a material of a geological core taking tube.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a heat treatment equipment of interior tube material is got to geological core, includes the base, fixedly connected with work stove on the up end of base, the work stove is the setting of U-shaped, be equipped with steel in the work stove, steel is close to the one end of base and the one end of keeping away from the base all is equipped with the grid plate, two the outer wall setting of the steel is all laminated to the grid plate, two equal fixedly connected with mounting panel, four on the both ends lateral wall of grid plate the mounting panel is two bisymmetry settings, four the one end that two grid plates were kept away from to the mounting panel all is equipped with the mounting hole, four the mounting hole is two bisymmetry settings, four run through jointly in the mounting hole have two construction bolts, two the equal fixedly connected with mounting nut of one end of construction bolt, be equipped with two clamping structure that the symmetry set up on the base, two clamping structure is located the both sides setting of work stove respectively.

As another technical scheme, clamping structure is including setting up the sliding opening on the base, sliding connection has the sliding seat in the sliding opening, fixedly connected with elevator motor on the lateral wall of work stove is kept away from to the sliding seat, elevator motor is close to the one end of sliding seat and is equipped with the lift axle, elevator motor's one end is kept away from to the lift axle runs through the sliding seat setting, elevator motor's one end fixedly connected with rotation motor is kept away from to the lift axle, the one end that the rotation motor is close to the work stove is equipped with the axis of rotation, the one end fixedly connected with grip slipper of rotation motor is kept away from to the axis of rotation, the grip slipper is just to two mounting panels settings, it is connected with the screw thread post to rotate on the lateral wall of work stove is kept away from to the sliding seat, the one end screw thread that the sliding seat was kept away from to the screw thread post runs through the base setting.

As another technical scheme, a plurality of foot pads which are symmetrically arranged are fixedly connected to the lower end face of the base.

As another technical scheme, four the mounting panels are all fixedly connected with pull rings on the side wall far away from each other.

As another technical scheme, all be equipped with the spacing groove on two relative inner walls of slip mouth, two equal sliding connection of spacing inslot has the stopper, two the equal fixed connection of stopper sets up on the sliding seat.

As another technical scheme, the two grid plates are made of high-temperature-resistant heat conduction materials, and the four mounting plates are made of heat insulation materials.

A heat treatment process for a geological core coring pipe material is characterized by comprising the following steps:

A. heating the 40MnB steel casting to 850 ℃, keeping the temperature for 40-100min and then preserving the heat for 15-35min;

B. putting the steel piece into a box-type heating furnace, raising the temperature of the heating furnace, heating to 600 ℃, and then preserving heat for 80-200min;

C. and after the tempering is finished, discharging the steel piece out of the furnace, air-cooling to be below 100 ℃, and putting the steel piece into oil or water for further cooling.

As another technical scheme, the 40MnB steel casting material comprises the following chemical components: carbon C0.37-0.44, silicon SI:0.17-0.37 percent, 1.10-1.40 percent of manganese Mn, 0.35 percent of phosphorus P (residual), 0.35 percent of sulfur S (residual), less than or equal to 0.30 percent of chromium Cr (residual), less than or equal to 0.30 percent of nickel Ni (residual), and less than or equal to 0.30 percent of copper Cu (residual).

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, a user can clamp and fix the steel in advance by means of the structures such as the grid plate, then the work furnace arranged in a U shape can be matched to conveniently finish picking and placing work of massive steel by means of lifting and the like, and meanwhile, the steel can be effectively controlled to rotate in the work furnace by means of the arrangement of the clamping structure and the clamping and fixing of the mounting plate, so that the steel can be heated more uniformly, and the quality of steel heat treatment is greatly ensured;

2. the process optimizes the traditional heat treatment process, eliminates the stress in the workpiece by the heat treatment method of the invention, and ensures that the crystal structure in the workpiece is stable. The hardness, strength, toughness and wear resistance of the pipe are further improved, and the problem that the steel is easy to crack is thoroughly solved.

Drawings

FIG. 1 is a front sectional view of a heat treatment apparatus for coring a core tube material from a geological core according to the present invention;

FIG. 2 is an enlarged view of structure A of FIG. 1;

FIG. 3 is a sectional side view of the sliding port of the heat treatment apparatus for coring inner tube material of geological core according to the present invention.

In the figure: the device comprises a base 1, a work furnace 2, steel 3, a grid plate 4, a mounting hole 5, a mounting bolt 6, a mounting nut 7, a mounting plate 8, a sliding opening 9, a sliding seat 10, a lifting motor 11, a lifting shaft 12, a rotating motor 13, a rotating shaft 14, a clamping seat 15, a threaded column 16, a cushion foot 17, a pull ring 18, a limiting groove 19 and a limiting block 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example one

Referring to fig. 1-3, a heat treatment device for taking core tube material of geological core, comprising a base 1, a plurality of pad feet 17 which are symmetrically arranged with each other are fixedly connected on the lower end surface of the base 1, the arrangement of the pad feet 17 makes the device placement more stable, and the arrangement of a lifting motor 11 and the like can smoothly complete the arrangement of a work furnace 2 on the upper end surface of the base 1, the work furnace 2 is in a U-shaped arrangement, steel material 3 is arranged in the work furnace 2, one end of the steel material 3 close to the base 1 and one end far away from the base 1 are both provided with grid plates 4, the two grid plates 4 are both attached to the outer wall of the steel material 3, the two side walls at the two ends of the two grid plates 4 are both fixedly connected with mounting plates 8, the two grid plates 4 are both made of high temperature resistant heat conductive material, thus the clamping and heating work can be smoothly completed, the four mounting plates 8 are both made of heat insulating material, thus the accident when the user uses the mounting plates 8 to perform work can be effectively avoided, the four mounting plates 8 are both arranged symmetrically, the side walls are both fixedly connected with pull rings 18 on the side walls of which are far away from each other, the mounting plates 8, the mounting plates 5, the two lifting and the two lifting bolts are both arranged symmetrically, the two lifting holes 6 which are both arranged symmetrically, the two mounting holes of the mounting plates 5 which are both sides of the mounting plates 5 which are both arranged symmetrically, the mounting plates 5, the two clamping and the mounting holes are both arranged symmetrically, the two clamping screw bolts 5 which are arranged symmetrically, sliding connection has sliding seat 10 in sliding port 9, all be equipped with spacing groove 19 on two relative inner walls of sliding port 9, equal sliding connection has stopper 20 in two spacing grooves 19, two equal fixed connection of stopper 20 set up on sliding seat 10, can make sliding seat 10 slip more stable in sliding port 9 like this, the condition of breaking away from can not appear, the pressure of screw thread post 16 has been reduced, fixedly connected with elevator motor 11 on the lateral wall that sliding seat 10 kept away from work stove 2, the one end that elevator motor 11 is close to sliding seat 10 is equipped with lift shaft 12, lift shaft 12 keeps away from the one end of elevator motor 11 and runs through sliding seat 10 and sets up, the one end fixedly connected with rotation motor 13 that elevator shaft 12 kept away from elevator motor 11, the one end that rotation motor 13 is close to work stove 2 is equipped with axis of rotation 14, the one end fixedly connected with centre gripping seat 15 that rotation motor 13 is kept away from to axis of rotation motor 14, centre gripping seat 15 is just right two mounting panels 8 sets up, slide seat 10 rotates on keeping away from a lateral wall of work stove 2 and is connected with screw thread post 16, screw thread post 16 keeps away from one end of sliding seat 10 and runs through base 1 setting, like this alright in order to accomplish convenient rotation centre gripping steel and the work, make the work of getting and heat the work, the steel of lifting steel is even.

A. heating a 40MnB steel casting to 850 ℃, keeping the temperature for 40min and then preserving the heat for 15min, wherein the 40MnB steel casting comprises the following chemical components: carbon C0.37-0.44, silicon SI:0.17-0.37 percent, 1.10-1.40 percent of manganese Mn, 0.35 percent of phosphorus P (residual), 0.35 percent of sulfur S (residual), less than or equal to 0.30 percent of chromium Cr (residual), less than or equal to 0.30 percent of nickel Ni (residual), and less than or equal to 0.30 percent of copper Cu (residual);

B. putting the steel piece into a box-type heating furnace, raising the temperature of the heating furnace, heating to 600 ℃, and then preserving heat for 80min;

C. after tempering is finished, the steel piece is taken out of the furnace and cooled to be below 100 ℃, and the steel piece is put into oil or water for further cooling, so that the traditional heat treatment process is optimized, the stress in the workpiece is eliminated through the heat treatment method, and the crystal structure in the workpiece is stable. The hardness, strength, toughness and wear resistance of the pipe are further improved, the problem that steel is easy to crack is thoroughly solved, meanwhile, the heat treatment method is simple to operate, the operation process is green and environment-friendly, the front step and the rear step are tightly connected, a referable specific method is provided for subsequent operation, the pipe belongs to a relatively excellent heat treatment method, the strength and hardness of the material are improved, and the phenomenon that the inner pipe is not easy to pass through the outer pipe after being deformed is effectively prevented.

Example two

Referring to fig. 1-3, a heat treatment device for taking core tube material from geological core comprises a base 1, a plurality of pad feet 17 which are symmetrically arranged with each other are fixedly connected to the lower end surface of the base 1, the arrangement of the pad feet 17 enables the device to be placed more stably, a working furnace 2 is fixedly connected to the upper end surface of the base 1 smoothly by arranging a lifting motor 11 and the like, the working furnace 2 is arranged in a U shape, steel 3 is arranged in the working furnace 2, grid plates 4 are arranged at one end of the steel 3 close to the base 1 and one end of the steel 3 far away from the base 1, the two grid plates 4 are arranged to be attached to the outer wall of the steel 3, mounting plates 8 are fixedly connected to the side walls of the two ends of the two grid plates 4, the two grid plates 4 are made of high-temperature-resistant heat-conducting material, so that the clamping and heating work can be smoothly completed, and the four mounting plates 8 are made of heat-insulating material, thus, accidents can be effectively avoided when a user uses the mounting plates 8 to carry out lifting operation, the four mounting plates 8 are arranged symmetrically in pairs, the side walls of the four mounting plates 8, which are far away from each other, are fixedly connected with pull rings 18, lifting operation of the mounting plates 8, steel 3 and other structures can be better completed by means of the pull rings 18, and then the user can conveniently complete picking and placing operation of large steel 3, one ends of the four mounting plates 8, which are far away from the two grid plates 4, are respectively provided with mounting holes 5, the four mounting holes 5 are arranged symmetrically in pairs, two mounting bolts 6 are commonly penetrated in the four mounting holes 5, one ends of the two mounting bolts 6 are respectively fixedly connected with mounting nuts 7, two clamping structures which are symmetrically arranged are arranged on the base 1 and are respectively positioned on two sides of the work furnace 2, and each clamping structure comprises a sliding port 9 arranged on the base 1, sliding connection has sliding seat 10 in sliding port 9, all be equipped with spacing groove 19 on two relative inner walls of sliding port 9, equal sliding connection has stopper 20 in two spacing grooves 19, two equal fixed connection of stopper 20 set up on sliding seat 10, can make sliding seat 10 slip more stable in sliding port 9 like this, the condition of breaking away from can not appear, the pressure of screw thread post 16 has been reduced, fixedly connected with elevator motor 11 on the lateral wall that sliding seat 10 kept away from work stove 2, the one end that elevator motor 11 is close to sliding seat 10 is equipped with lift shaft 12, lift shaft 12 keeps away from the one end of elevator motor 11 and runs through sliding seat 10 and sets up, the one end fixedly connected with rotation motor 13 that elevator shaft 12 kept away from elevator motor 11, the one end that rotation motor 13 is close to work stove 2 is equipped with axis of rotation 14, the one end fixedly connected with centre gripping seat 15 that rotation motor 13 is kept away from to axis of rotation motor 14, centre gripping seat 15 is just right two mounting panels 8 sets up, slide seat 10 rotates on keeping away from a lateral wall of work stove 2 and is connected with screw thread post 16, screw thread post 16 keeps away from one end of sliding seat 10 and runs through base 1 setting, like this alright in order to accomplish convenient rotation centre gripping steel and the work, make the work of getting and heat the work, the steel of lifting steel is even.

A. heating a 40MnB steel casting to 850 ℃, keeping the temperature for 70min and then keeping the temperature for 25min, wherein the 40MnB steel casting comprises the following chemical components: carbon C0.37-0.44, silicon SI:0.17-0.37 percent, 1.10-1.40 percent of manganese Mn, 0.35 percent of phosphorus P (residual), 0.35 percent of sulfur S (residual), less than or equal to 0.30 percent of chromium Cr (residual), less than or equal to 0.30 percent of nickel Ni (residual), and less than or equal to 0.30 percent of copper Cu (residual);

B. putting the steel piece into a box-type heating furnace, raising the temperature of the heating furnace, heating to 600 ℃, and then preserving heat for 140min;

EXAMPLE III

A. heating a 40MnB steel casting to 850 ℃, keeping the temperature for 100min and then preserving the heat for 35min, wherein the 40MnB steel casting comprises the following chemical components: carbon C0.37-0.44, silicon SI:0.17-0.37 percent, 1.10-1.40 percent of manganese Mn, 0.35 percent of phosphorus P (residual), 0.35 percent of sulfur S (residual), less than or equal to 0.30 percent of chromium Cr (residual), less than or equal to 0.30 percent of nickel Ni (residual), and less than or equal to 0.30 percent of copper Cu (residual);

B. putting the steel piece into a box-type heating furnace, raising the temperature of the heating furnace, heating to 600 ℃, and then preserving heat for 200min;

During the use process of the invention, firstly, corresponding steel 3 is placed directly on two grid plates 4, then the mounting bolts 6 penetrate through corresponding mounting holes 5, the fixing work between the mounting plates 8 is completed by the aid of the mounting nuts 7 and the mounting bolts 6, then the clamping and fixing work of the grid plates 4 and the steel 3 is smoothly completed, then a user can move the steel 3, the grid plates 4 and other structures to the upper side of the work furnace 2 by using corresponding lifting equipment through the pull rings 18, at the moment, the lifting motor 11 can be controlled to control the lifting shaft 12 to push the two rotating motors 13 to ascend to the upper side of the work furnace 2, so that the two clamping seats 15 are aligned with the steel 3 and other structures, then the two threaded columns 16 can be rotated, the threaded columns 16 can rotate and push the sliding seats 10 to slide in the sliding openings 9, meanwhile, the rotating motors 13 and the clamping seats 15 can be pushed to be close to the steel 3, then the two clamping seats 15 can be in contact with the corresponding mounting plates 8 from two sides, then the clamping and fixing work can be completed, then the lifting equipment can be lifted, the lifting shaft 12 can be controlled to descend, so that the steel 3 can conveniently enter the work of the lifting motor 3, so that the steel 3 can be reversely rotated, the steel can be conveniently and the steel 3 can be conveniently operated, and the steel 3 can be conveniently and the heat treatment of the large-taking and the steel can be conveniently completed.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a heat treatment equipment of interior tube material is got to geological core, includes base (1), its characterized in that, fixedly connected with work stove (2) on the up end of base (1), work stove (2) are the setting of U-shaped, be equipped with steel (3) in work stove (2), steel (3) are close to the one end of base (1) and the one end of keeping away from base (1) all are equipped with grid plate (4), two the outer wall setting of steel (3) is all laminated in grid plate (4), two equal fixedly connected with mounting panel (8), four on the both ends lateral wall of grid plate (4) mounting panel (8) are two bisymmetry settings, four the one end that two grid plate (4) were kept away from in mounting panel (8) all is equipped with mounting hole (5), four mounting hole (5) are two bisymmetry settings, four two mounting bolt (6), two the equal fixedly connected with mounting nut (7) of one end of mounting bolt (6) run through jointly in mounting hole (5), be equipped with two centre gripping structures that the symmetry sets up on base (1) two work stove (2) both sides respectively.

2. The heat treatment equipment for the inner tube material of the geological core is taken according to claim 1, wherein the clamping structure comprises a sliding port (9) arranged on a base (1), a sliding seat (10) is slidably connected in the sliding port (9), a lifting motor (11) is fixedly connected to one side wall of the sliding seat (10) far away from the working furnace (2), a lifting shaft (12) is arranged at one end, close to the sliding seat (10), of the lifting motor (11), one end, far away from the lifting motor (11), of the lifting shaft (12) penetrates through the sliding seat (10), a rotating motor (13) is fixedly connected to one end, far away from the lifting motor (11), of the lifting shaft (12), a rotating shaft (14) is arranged at one end, close to the working furnace (2), of the rotating motor (13), a clamping seat (15) is fixedly connected to one end, far away from the rotating motor (13), the clamping seat (15) is arranged right opposite to two mounting plates (8), a threaded column (16) is rotatably connected to one side wall of the sliding seat (10) far away from the working furnace (2), and one end, far away from the threaded column (16), of the base (1).

3. The equipment for the heat treatment of the geological core-taking tube material according to the claim 1, characterized in that a plurality of mutually symmetrical support feet (17) are fixedly connected to the lower end surface of the base (1).

4. A device for the thermal treatment of geological core-coring material as claimed in claim 2 wherein a pull ring (18) is fixedly attached to each of the side walls of the four mounting plates (8) remote from each other.

5. The equipment for heat treatment of the geological core taking tube material according to the claim 2, characterized in that two opposite inner walls of the sliding opening (9) are provided with limiting grooves (19), two limiting blocks (20) are connected in the two limiting grooves (19) in a sliding way, and two limiting blocks (20) are fixedly connected on the sliding seat (10).

6. The apparatus for the thermal treatment of geological core coring pipe material according to claim 1, wherein two of the grid plates (4) are made of high temperature resistant heat conductive material and four of the mounting plates (8) are made of heat insulating material.

7. A heat treatment process for a geological core coring pipe material is characterized by comprising the following steps:

8. The process of claim 7, wherein the 40MnB steel casting material comprises the following chemical components: 0.37-0.44 of carbon C, silicon SI:0.17-0.37 percent, 1.10-1.40 percent of manganese Mn, 0.35 percent of phosphorus P (residual), 0.35 percent of sulfur S (residual), less than or equal to 0.30 percent of chromium Cr (residual), less than or equal to 0.30 percent of nickel Ni (residual), and less than or equal to 0.30 percent of copper Cu (residual).