CN112981051B - Heat treatment method before finish machining of forged workpiece for petroleum blowout prevention equipment - Google Patents
Heat treatment method before finish machining of forged workpiece for petroleum blowout prevention equipment Download PDFInfo
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- CN112981051B CN112981051B CN202011552129.5A CN202011552129A CN112981051B CN 112981051 B CN112981051 B CN 112981051B CN 202011552129 A CN202011552129 A CN 202011552129A CN 112981051 B CN112981051 B CN 112981051B
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- fixedly connected
- heat preservation
- heat treatment
- driving motor
- rotating
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000003754 machining Methods 0.000 title claims abstract description 15
- 239000003208 petroleum Substances 0.000 title claims description 8
- 230000002265 prevention Effects 0.000 title abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 43
- 238000004321 preservation Methods 0.000 claims abstract description 39
- 238000005242 forging Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 abstract description 9
- 238000007669 thermal treatment Methods 0.000 abstract description 2
- 238000005485 electric heating Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/767—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Forging (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention provides a heat treatment method before finish machining of a forged workpiece for oil blowout prevention equipment, and relates to the technical field of heat treatment. This thermal treatment equipment before forging work piece finish machining for oil blowout prevention equipment, including the heat preservation heating jar, heat preservation heating jar bottom position fixedly connected with headstock, headstock inner bottom wall central point puts fixedly connected with driving motor, heat preservation heating jar arbitrary one side position runs through fixedly connected with high-pressure inlet port, heat preservation heating jar inner wall position fixedly connected with high-temperature heating ring, it runs through setting and fixedly connected with isolation heated board to hold between heat preservation heating jar bottom and the headstock top, the rotation supporting groove of annular setting has been seted up to isolation heated board upper surface position, isolation heated board top position is provided with the stirring frame. The invention can realize batch heat treatment of parts, and high-pressure stirring is carried out during heat treatment, heat energy transfer is promoted by pressure, and combustion-supporting gas is kept sufficient during electric heating.
Description
Technical Field
The invention relates to the technical field of heat treatment, in particular to a heat treatment method before finish machining of a forged workpiece for petroleum blowout prevention equipment.
Background
Heat treatment refers to a metal hot working process in which a material is heated, held and cooled in a solid state to achieve a desired texture and properties. In the process of advancing from the stone age to the copper age and the iron age, the role of heat treatment is gradually recognized, normalizing: heating steel or steel piece to a proper temperature above a critical point AC3 or ACM, maintaining for a certain time, and cooling in air to obtain a heat treatment process of pearlite-like structure, tempering: the quenched workpiece is heated to a suitable temperature below the critical point AC1 for a time and then cooled in a satisfactory manner to obtain the desired texture and properties of the heat treatment process.
In the prior art, the heat treatment is difficult to carry out batch treatment on the workpieces, and the efficiency of heating the heat-treated workpieces is low.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a heat treatment method before finish machining of a forging workpiece for petroleum blowout prevention equipment, which solves the problems that heat treatment is difficult to be carried out in batches and heating efficiency is low.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a thermal treatment equipment before forging work piece finish machining for oil blowout prevention equipment, includes the heat preservation heating jar, heat preservation heating jar bottom position fixedly connected with headstock, bottom wall central point puts fixedly connected with driving motor in the headstock, heat preservation heating jar arbitrary one side position runs through fixedly connected with high-pressure inlet port, heat preservation heating jar inner wall position fixedly connected with high-temperature heating ring, be the setting that runs through between heat preservation heating jar bottom and the headstock top and fixedly connected with isolation heated board, the rotation supporting groove of annular setting has been seted up to isolation heated board upper surface position, isolation heated board top position is provided with the stirring frame, stirring frame lateral wall is provided with a plurality of evenly distributed's ventilative groove that runs through, stirring frame outer wall position is provided with a plurality of evenly distributed's stirring whirl boards, stirring frame top is the opening setting and rotates with heat preservation heating jar interior roof to be connected with, heat preservation heating jar upper surface central point put through sliding connection has the electromagnetism sealed lid, electromagnetism lower surface central point put and rotate and be connected with the rotation connecting rod, rotation connecting rod outer wall top-down fixedly connected with evenly distributed's spare part places.
Preferably, the outer wall of the part placement plate is in sliding connection with the inner wall of the stirring frame, a limiting connecting groove is fixedly connected with the central position of the inner wall of the stirring frame, a plurality of limiting cross blocks are arranged at the central position of the lower surface of the part placement plate at the lowest position of the part placement plate, and the size and shape of the limiting cross blocks are consistent with those of the limiting connecting groove.
Preferably, a plurality of supporting universal wheels are fixedly connected to the lower surface of the stirring frame, the supporting universal wheels are distributed circularly, and a plurality of the supporting universal wheels are in rolling connection with the rotating supporting grooves.
Preferably, the driving end of the driving motor is fixedly connected with a power rotating shaft, one end of the power rotating shaft, which is far away from the driving motor, is in penetrating and rotating connection with the central position of the insulation board, and one end of the power rotating shaft, which is far away from the driving motor, is fixedly connected with the central position of the lower surface of the stirring frame.
Preferably, the lower surface position of the electromagnetic sealing cover is fixedly connected with a plurality of evenly distributed electromagnets, the upper surface of the heat preservation heating tank is provided with a plurality of evenly distributed fixed connecting grooves at the positions of the electromagnets, and the electromagnets are in sliding connection with the fixed connecting grooves at the corresponding positions.
Preferably, a lifting hook is fixedly connected to the central position of the upper surface of the electromagnetic sealing cover.
Preferably, the heat treatment method before finish machining of the forged workpiece for the oil blowout prevention equipment comprises the following steps of:
step one: placing the parts to be subjected to heat treatment on a part placing plate, and inserting the electromagnetic sealing cover, the rotary connecting rod and the part placing plate into the stirring frame through the crane;
step two: the limiting connecting groove at the lower surface of the part placing plate is clamped into the limiting cross block of the stirring frame, then the electromagnet is enabled to absorb the iron material in the fixed connecting groove, and the driving motor is started;
step three: injecting high-pressure air into the heat-preserving heating tank through the high-pressure air inlet, and increasing the pressure in the heat-preserving heating tank, wherein the pressure is kept at more than 30Mpa and not more than 45Mpa;
step four: starting the high-temperature heating ring to keep the temperature in the heat preservation heating tank between 780 ℃ and 820 ℃ and fifteen minutes, keeping the component placing plate to rotate in the heating process to stir air flow, and taking out the electromagnetic sealing cover, the component placing plate and the component for cooling.
(III) beneficial effects
The invention provides a heat treatment method before finish machining of a forged workpiece for oil blowout prevention equipment. The beneficial effects are as follows:
according to the invention, the electromagnetic sealing cover, the rotary connecting rod and the part placing plate with the parts are placed into the stirring frame through the crane, so that the limiting cross block is clamped into the limiting connecting groove, high-pressure air is filled into the heat preservation heating tank through the high-pressure air inlet hole, the electromagnet is started, the electromagnetic sealing cover is fixed, the high-temperature and high-pressure treatment is realized on the parts on the upper surface of the part placing plate through starting the driving motor and the high-temperature heating ring, airflow is realized in the stirring process, and the working efficiency of heat treatment is greatly improved.
Drawings
FIG. 1 is a front view of a heat treatment method before finishing a forged workpiece for a blowout preventer according to the present invention;
FIG. 2 is a cross-sectional view of a heat treatment process prior to finishing a wrought workpiece for a blowout preventer of the present invention;
FIG. 3 is an enlarged view of FIG. 2 at A;
fig. 4 is an enlarged view at B in fig. 2.
1, a heat preservation heating tank; 2. a power box; 3. high-pressure air inlet holes; 4. lifting the hook; 5. an electromagnetic sealing cover; 6. a stirring frame; 7. an isolation heat preservation plate; 8. a driving motor; 9. a component placement plate; 10. rotating the connecting rod; 11. stirring the cyclone plate; 12. supporting universal wheels; 13. a rotary support groove; 14. a power rotating shaft; 15. limiting cross blocks; 16. a fixed connection groove; 17. an electromagnet; 18. a high temperature heating ring; 19. and a limit connecting groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples:
as shown in fig. 1-4, the embodiment of the invention provides a heat treatment device before finish machining of forged workpiece for petroleum blowout prevention equipment, which comprises a heat preservation heating tank 1, wherein the bottom position of the heat preservation heating tank 1 is fixedly connected with a power box 2, a driving motor 8 is placed through the power box 2, the driving motor 8 can be effectively protected, the driving motor 8 is prevented from being damaged by high temperature, the center position of the inner bottom wall of the power box 2 is fixedly connected with the driving motor 8, the driving motor 8 provides power for a stirring frame 6, the position of any side of the heat preservation heating tank 1 is fixedly connected with a high-pressure air inlet hole 3 in a penetrating way, the inner wall position of the heat preservation heating tank 1 is fixedly connected with a high-temperature heating ring 18, high temperature is provided through the high-temperature heating ring 18, an isolation heat preservation plate 7 is arranged in a penetrating way between the bottom of the heat preservation heating tank 1 and the top of the power box 2, can effectually protect driving motor 8 through keeping apart heated board 7, the rotation supporting groove 13 that the annular set up has been seted up to the upper surface position of keep apart heated board 7, keep apart heated board 7 top position and be provided with stirring frame 6, stirring frame 6 lateral wall is provided with a plurality of evenly distributed's ventilative groove that runs through, stirring frame 6 outer wall position is provided with a plurality of evenly distributed's stirring whirl board 11, stirring frame 6 top is the opening setting and rotates with the heat preservation heating jar 1 inner roof to be connected, heat preservation heating jar 1 upper surface central point puts and runs through sliding connection has electromagnetic seal lid 5, electromagnetic seal lid 5 lower surface central point puts and rotates and is connected with rotation connecting rod 10, rotation connecting rod 10 outer wall top-down runs through fixedly connected with a plurality of evenly distributed's spare part and places board 9, can place the spare part of waiting to handle through spare part place board 9.
The outer wall of the part placement plate 9 is in sliding connection with the inner wall of the stirring frame 6, the center position of the inner bottom wall of the stirring frame 6 is fixedly connected with a limiting connecting groove 19, the center position of the lower surface of the part placement plate 9 at the lowest position of the part placement plate 9 is provided with a limiting cross block 15, the size and shape of the limiting cross block 15 are consistent with those of the limiting connecting groove 19, and the stirring frame 6 can conveniently rotate.
The lower surface position of the stirring frame 6 is fixedly connected with a plurality of supporting universal wheels 12, the supporting universal wheels 12 are distributed circularly, and the supporting universal wheels 12 are in rolling connection with the rotating supporting grooves 13. The driving end of the driving motor 8 is fixedly connected with a power rotating shaft 14, one end, far away from the driving motor 8, of the power rotating shaft 14 is connected with the central position of the isolation heat insulation plate 7 in a penetrating and rotating mode, and one end, far away from the driving motor 8, of the power rotating shaft 14 is fixedly connected with the central position of the lower surface of the stirring frame 6. The lower surface of the electromagnetic sealing cover 5 is fixedly connected with a plurality of evenly distributed electromagnets 17, a plurality of evenly distributed fixed connecting grooves 16 are formed in the position of the electromagnets 17 on the upper surface of the heat preservation heating tank 1, and the electromagnets 17 are in sliding connection with the fixed connecting grooves 16 in the corresponding positions. The lifting hook 4 is fixedly connected to the central position of the upper surface of the electromagnetic sealing cover 5, and the component placing plate 9 can be lifted out or put in by lifting the hook 4.
A heat treatment method before finish machining of a forged workpiece for oil blowout prevention equipment comprises the following steps:
step one: placing the parts to be subjected to heat treatment on the parts placing plate 9, and inserting the electromagnetic sealing cover 5, the rotary connecting rod 10 and the parts placing plate 9 into the stirring frame 6 through the crane;
step two: the limiting connecting groove 19 at the lower surface of the part placing plate 9 is clamped into the limiting cross block 15 of the stirring frame 6, then the electromagnet 17 is enabled to absorb the iron material in the fixed connecting groove 16, and the driving motor 8 is started;
step three: injecting high-pressure air into the heat preservation heating tank 1 through the high-pressure air inlet hole 3, and increasing the pressure in the heat preservation heating tank 1, wherein the pressure is kept at more than 30Mpa and not more than 45Mpa;
step four: the high-temperature heating ring 18 is started, the temperature of 780-820 ℃ is kept for fifteen minutes in the heat preservation heating tank, the component placement plate 9 keeps rotating in the heating process, the air flow is stirred, and then the electromagnetic sealing cover 5, the component placement plate 9 and the components are taken out for cooling.
The heat treatment efficiency before finish machining of the traditional forged workpiece is compared with the efficiency of the scheme
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. The heat treatment method before the finish machining of the forging workpiece for the petroleum blowout preventer is characterized in that the heat treatment equipment before the finish machining of the forging workpiece for the petroleum blowout preventer is adopted, the heat treatment equipment before the finish machining of the forging workpiece for the petroleum blowout preventer comprises a heat preservation heating tank, a power box is fixedly connected to the bottom of the heat preservation heating tank, a driving motor is placed through the power box, the driving motor is effectively protected, the driving motor is prevented from being damaged by high temperature, the driving motor is fixedly connected to the center position of the inner wall of the power box, the driving motor provides power for a stirring frame, a high-pressure air inlet hole is fixedly connected to any one side position of the heat preservation heating tank in a penetrating manner, a high-temperature heating ring is fixedly connected to the inner wall position of the heat preservation heating tank, a heat preservation plate is provided with a high-temperature heating ring through the high-temperature heating ring, a rotary supporting groove which is annularly arranged is arranged between the bottom of the heat preservation heating tank and the top of the power box, a stirring frame is arranged above the heat preservation plate, a plurality of uniformly distributed penetrating grooves are arranged on the upper surface of the heat preservation plate, a plurality of uniformly distributed penetrating sealing covers are arranged on the outer wall of the stirring frame, a plurality of uniformly distributed electromagnetic sealing covers are uniformly distributed on the rotating surfaces of the stirring frame, the uniformly distributed electromagnetic sealing covers are connected to the upper surface of the uniformly distributed through the connecting rods, and the uniformly distributed rotating sealing covers are fixedly connected to the upper surfaces of the connecting rods, and the uniformly distributed rotating surfaces are fixedly connected to the upper surfaces of the electromagnetic sealing covers, and the rotating plates are uniformly distributed, and the rotating surfaces are uniformly, and the rotating are connected to the upper and have a rotating and a rotating sealing part, and a rotating;
the outer walls of the part placement plates are in sliding connection with the inner walls of the stirring frames, the center positions of the inner walls of the stirring frames are fixedly connected with limiting connecting grooves, limiting cross blocks are arranged at the center positions of the lower surfaces of the part placement plates at the bottommost positions of the part placement plates, the size and the shape of the limiting cross blocks are consistent with those of the limiting connecting grooves, and the stirring frames can conveniently rotate;
a plurality of supporting universal wheels are fixedly connected to the lower surface of the stirring frame, the supporting universal wheels are distributed in a round shape, and the supporting universal wheels are in rolling connection with the rotating supporting grooves; the driving end of the driving motor is fixedly connected with a power rotating shaft, one end of the power rotating shaft, which is far away from the driving motor, is in penetrating and rotating connection with the central position of the insulation board, and one end of the power rotating shaft, which is far away from the driving motor, is fixedly connected with the central position of the lower surface of the stirring frame; a plurality of evenly distributed electromagnets are fixedly connected to the lower surface of the electromagnetic sealing cover, a plurality of evenly distributed fixed connecting grooves are formed in the upper surface of the heat preservation heating tank at the positions of the electromagnets, and the electromagnets are in sliding connection with the fixed connecting grooves at the corresponding positions; a lifting hook is fixedly connected to the central position of the upper surface of the electromagnetic sealing cover, and the component placing plate is lifted out or put in through the lifting hook;
the heat treatment method comprises the following steps:
step one: placing the parts to be subjected to heat treatment on a part placing plate, and inserting the electromagnetic sealing cover, the rotary connecting rod and the part placing plate into the stirring frame through the crane;
step two: the limiting connecting groove at the lower surface of the part placing plate is clamped into the limiting cross block of the stirring frame, then the electromagnet is enabled to absorb the iron material in the fixed connecting groove, and the driving motor is started;
step three: injecting high-pressure air into the heat-preserving heating tank through the high-pressure air inlet, and increasing the pressure in the heat-preserving heating tank, wherein the pressure is kept at more than 30Mpa and not more than 45Mpa;
step four: starting the high-temperature heating ring to keep the temperature in the heat preservation heating tank between 780 ℃ and 820 ℃ and fifteen minutes, keeping the component placing plate to rotate in the heating process to stir airflow, and taking out the electromagnetic sealing cover, the component placing plate and the component for cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011552129.5A CN112981051B (en) | 2020-12-24 | 2020-12-24 | Heat treatment method before finish machining of forged workpiece for petroleum blowout prevention equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011552129.5A CN112981051B (en) | 2020-12-24 | 2020-12-24 | Heat treatment method before finish machining of forged workpiece for petroleum blowout prevention equipment |
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| CN112981051A CN112981051A (en) | 2021-06-18 |
| CN112981051B true CN112981051B (en) | 2024-03-29 |
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| CN112981051A (en) | 2021-06-18 |
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