CN113737123B - Local carburizing process for locking piece - Google Patents
Local carburizing process for locking piece Download PDFInfo
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- CN113737123B CN113737123B CN202110982646.4A CN202110982646A CN113737123B CN 113737123 B CN113737123 B CN 113737123B CN 202110982646 A CN202110982646 A CN 202110982646A CN 113737123 B CN113737123 B CN 113737123B
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- 238000005255 carburizing Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000008569 process Effects 0.000 title abstract description 13
- 239000003973 paint Substances 0.000 claims abstract description 16
- 238000001035 drying Methods 0.000 claims abstract description 12
- 238000010791 quenching Methods 0.000 claims abstract description 9
- 230000000171 quenching effect Effects 0.000 claims abstract description 9
- 230000001680 brushing effect Effects 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 8
- 238000011033 desalting Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 26
- 238000002203 pretreatment Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 6
- 239000002344 surface layer Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 229910000677 High-carbon steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/04—Treatment of selected surface areas, e.g. using masks
-
- 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
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/20—Carburising
- C23C8/22—Carburising of ferrous surfaces
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/80—After-treatment
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Handcart (AREA)
Abstract
The invention provides a local carburizing process for a locking piece, which comprises the following steps of firstly, pre-treating, cleaning greasy dirt on the surface of a workpiece, and drying the cleaned workpiece for later use; secondly, brushing anti-seepage paint on the surface of the workpiece which does not need carburizing by a brushing device, and drying the brushed workpiece; step three, placing the workpiece treated in the step two in a mesh-belt carburizing furnace for carburizing, and removing the paint on the surface; step four, after the surface paint is removed, quenching heat treatment is carried out on the workpiece; step five, after quenching is completed, desalting treatment is carried out on the surface of the workpiece; step six, after desalting treatment is carried out on the workpiece, the surface of the workpiece is required to be coated with antirust paint; and step seven, finally cleaning and drying the workpiece, the invention has the advantages of facilitating the carburization process of operators on the workpiece and improving the carburization uniformity of the workpiece.
Description
Technical Field
The invention belongs to the technical field of carburization processes, and particularly relates to a local carburization process for a locking piece.
Background
Carburization refers to the process of allowing carbon atoms to penetrate into the steel surface layer. The workpiece of low carbon steel is provided with a surface layer of high carbon steel, and then is subjected to quenching and low-temperature tempering, so that the surface layer of the workpiece is provided with high hardness and wear resistance, and the central part of the workpiece still maintains the toughness and plasticity of the low carbon steel. The common carburization modes at present are gas carburization, vacuum carburization, plasma carburization and the like.
One of the devices in gas carburizing is a mesh belt type carburizing furnace, which is a tool for heating and preserving heat of a workpiece for a long time to enable carbon elements to permeate into the surface of the workpiece, and a layer of carbon elements is attached to the surface of the workpiece treated by the carburizing furnace, so that the workpiece has higher hardness and wear resistance.
In the using process of the existing mesh belt carburizing furnace, the workpiece is placed on the conveying mesh belt, so that carburization of the contact part of the workpiece and the conveying mesh belt is uneven.
Disclosure of Invention
The invention aims at solving the problems in the prior art, and provides a local carburization process for a locking piece, which has the characteristics of facilitating carburization process for a workpiece by an operator and improving carburization uniformity of the workpiece.
The aim of the invention can be achieved by the following technical scheme:
a local carburization process for a locking piece comprises the following steps,
firstly, pre-treatment, namely cleaning greasy dirt on the surface of a workpiece, and drying the cleaned workpiece for later use;
secondly, brushing anti-seepage paint on the surface of the workpiece which does not need carburizing by a brushing device, and drying the brushed workpiece;
step three, placing the workpiece treated in the step two in a mesh-belt carburizing furnace for carburizing, and removing the paint on the surface;
step four, after the surface paint is removed, quenching heat treatment is carried out on the workpiece;
step five, after quenching is completed, desalting treatment is carried out on the surface of the workpiece;
step six, after desalting treatment is carried out on the workpiece, the surface of the workpiece is required to be coated with antirust paint;
and step seven, finally, cleaning and drying the workpiece.
Further, the guipure carburizing furnace includes the support, all rotates between the both sides inner wall at support both ends and is connected with a rotating roller, winds between two rotating rollers and has rolled up and carry the guipure, fixedly connected with is used for driving the pivoted driving motor of rotating roller on the support, its characterized in that be equipped with a furnace body on the support upper surface carry and seted up a plurality of mounting groove along carrying guipure length direction on the guipure install a mounting panel on the mounting groove inner wall, seted up a plurality of through-hole on the mounting panel, fixedly connected with connecting plate on the through-hole inner wall, the interval is even to have seted up a plurality of through-hole on the connecting plate it has a placing rod to slide on the through-hole inner wall, is equipped with the positioning mechanism that is used for the location to place the position of pole in the through-hole to place between pole outer wall and through-hole inner wall be equipped with on the rotating roller and be used for conveniently placing the reset mechanism that the pole reset.
Further, the positioning mechanism comprises a plurality of first grooves formed in the upper end of the outer wall of the placing rod along the circumferential direction of the outer wall of the placing rod, a plurality of second grooves formed in the outer wall of the placing rod along the circumferential direction of the outer wall of the placing rod, first positioning blocks which are connected in the first grooves in a sliding mode, second positioning blocks which are connected in the second grooves in a sliding mode, first guide surfaces formed in the upper surface and the lower surface of one ends of the first positioning blocks, which are far away from the first grooves, second guide surfaces formed in the upper surface and the lower surface of one ends of the second positioning blocks, first springs arranged in the first grooves, second springs arranged in the second grooves and anti-falling pieces arranged on the mounting plate, wherein the two ends of each first spring are fixedly connected to the bottoms of the first grooves and the first positioning blocks respectively, the two ends of each second spring are arranged on the bottoms of the second grooves and the second positioning blocks respectively, one ends of each first guide surface are arranged in the first grooves and the second grooves, and one ends of each second guide surface are arranged in the first grooves, and one ends of each second guide surface are arranged in each second groove.
Further, the anti-falling piece comprises an anti-falling hole formed in the upper surface of the two ends of the mounting plate, an anti-falling rod slidingly connected to the inner wall of the anti-falling hole, and an anti-falling plate fixedly connected to the end face of the lower end of the anti-falling rod, wherein the anti-falling plate and the mounting plate are arranged in parallel.
Further, a positioning nut is connected to the outer wall of the anti-falling rod in a threaded mode, and the positioning nut abuts against the upper surface of the mounting plate.
Further, the reset mechanism comprises a ring groove formed in the outer wall of the rotating roller and a reset roller rotatably connected between the inner walls of the two sides of the support, and the length of the ring groove is larger than that of the mounting plate.
Further, a connecting mechanism is arranged between the conveying mesh belt and the mounting plate, the connecting mechanism comprises a connecting groove formed in the side wall of the mounting plate, a connecting groove formed in the lower surface of the mounting plate, a connecting rod fixedly connected to the inner walls of two sides of the connecting groove, a connecting wheel eccentrically and rotatably connected to the outer wall of the connecting rod, and a connecting sheet fixedly connected to the outer wall of the connecting wheel, one side of the connecting groove is communicated with the outside, one end of the connecting groove is communicated with the connecting groove, and the inner wall of the connecting groove is abutted to the inner wall of the mounting groove.
Further, a connecting hole is formed in the lower surface of the mounting plate, a locking hole is formed in the inner wall of the connecting hole, the locking hole is communicated with the connecting groove, a connecting rod is rotationally connected in the connecting hole, a locking rod is fixedly connected to the outer wall of the connecting rod, a locking groove is formed in the outer wall of the connecting wheel, and one end of the locking rod is embedded in the locking groove after rotation.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, the workpiece is placed on the placing rods, the placing rods slide downwards, and the workpiece is clamped between the placing rods, so that the workpiece carburizing device is simple in structure and convenient to operate, an operator can conveniently carburize the workpiece, and the workpiece carburization uniformity is improved.
2. According to the invention, the mounting plate is connected in the mounting hole through the connecting groove, the connecting piece drives the connecting wheel to rotate, and the connecting piece is shielded below the conveying mesh belt.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the connection structure between the placement rod and the mounting plate in the present invention.
Fig. 3 is an enlarged view of fig. 2 a.
Fig. 4 is a schematic structural view of the anti-falling member in the present invention.
Fig. 5 is a schematic structural view of the connecting mechanism in the present invention.
In the figure, 1, a bracket; 2. a rotating roller; 3. conveying a mesh belt; 4. a driving motor; 5. a furnace body; 6. a mounting groove; 7. a mounting plate; 8. a through hole; 9. a connecting plate; 10. a through hole; 11. placing a rod; 12. a positioning mechanism; 13. a reset mechanism; 14. a first groove; 15. a second groove; 16. a first positioning block; 17. a second positioning block; 18. a first guide surface; 19. a second guide surface; 20. a first spring; 21. a second spring; 22. an anti-falling member; 23. an anti-drop hole; 24. an anti-drop rod; 25. an anti-drop plate; 26. positioning a nut; 27. a ring groove; 28. a reset roller; 29. a connecting mechanism; 30. a connecting groove; 31. a connecting groove; 32. a connecting rod; 33. a fifth wheel; 34. a connecting sheet; 35. a connection hole; 36. a locking hole; 37. a connecting rod; 38. a lock lever; 39. locking groove.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1, a partial carburizing process for a locking member includes the steps of,
firstly, pre-treatment, namely cleaning greasy dirt on the surface of a workpiece, and drying the cleaned workpiece for later use;
secondly, brushing anti-seepage paint on the surface of the workpiece which does not need carburizing by a brushing device, and drying the brushed workpiece;
step three, placing the workpiece treated in the step two in a mesh-belt carburizing furnace for carburizing, and removing the paint on the surface;
step four, after the surface paint is removed, quenching heat treatment is carried out on the workpiece;
step five, after quenching is completed, desalting treatment is carried out on the surface of the workpiece;
step six, after desalting treatment is carried out on the workpiece, the surface of the workpiece is required to be coated with antirust paint;
and step seven, finally, cleaning and drying the workpiece.
As shown in fig. 1, the mesh-belt carburizing furnace comprises a bracket 1, a rotary roller 2 is rotatably connected between the inner walls of two sides of two ends of the bracket 1, a conveying mesh belt 3 is wound between the two rotary rollers 2, a driving motor 4 for driving the rotary rollers 2 to rotate is fixedly connected on the bracket 1, and a furnace body 5 is arranged on the upper surface of the bracket 1.
As shown in fig. 1, 2 and 3, a plurality of mounting grooves 6 are formed in the conveying mesh belt 3 along the length direction of the conveying mesh belt 3, the mounting grooves 6 are formed in the width direction of the conveying mesh belt 3, a mounting plate 7 is mounted in the mounting grooves 6, a plurality of through holes 8 are formed in the mounting plate 7, a connecting plate 9 is fixedly connected to the inner wall of the through holes 8, a plurality of through holes 10 are uniformly formed in the connecting plate 9 at intervals, a placing rod 11 is slidably connected to the inner wall of the through holes 10, and a positioning mechanism 12 for positioning the position of the placing rod 11 in the through holes 10 is arranged between the outer wall of the placing rod 11 and the inner wall of the through holes 10.
As shown in fig. 2, fig. 3 and fig. 4, the positioning mechanism 12 comprises a first groove 14, a second groove 15, a first positioning block 16, a second positioning block 17, a first guiding surface 18, a second guiding surface 19, a first spring 20, a second spring 21 and a drop-preventing member 22, wherein the first groove 14 is formed on the outer wall of the placing rod 11, a plurality of first grooves 14 are formed along the circumferential direction of the outer wall of the placing rod 11, the first positioning block 16 is slidably connected in the first groove 14, the first guiding surface 18 is formed on the upper surface and the lower surface of one end of the first positioning block 16 far away from the first groove 14, one end of the first guiding surface 18 is positioned in the first groove 14, the first spring 20 is arranged in the first groove 14, two ends of the first spring 20 are fixedly connected to the bottom of the first groove 14 and one end surface of the first positioning block 16 respectively, the second groove 15 is formed on the outer wall of the placing rod 11, a plurality of second grooves 15 are formed along the circumferential outer wall of the placing rod 11, the first groove positioning block 14 and the second groove 15 are arranged up and down, the second positioning block 17 is slidably connected in the first groove 14, one end of the second positioning block 16 is arranged in the second groove 17, one end of the second positioning block 17 is far away from the second positioning block 15, one end of the second positioning block 17 is arranged on the second groove 17, the second positioning block 15 is arranged on the second end surface of the second positioning block 15, and the second positioning block 15 is arranged on the second end surface, and the first end surface 17 is far away from the first end 17, and the first end surface 17, 17 is arranged on the first end surface, and 17, and the first positioning block 17 is on the first end surface, respectively, and the positioning block 17 is on the first positioning surface is on the first end surface, and is respectively, and is on the first end surface, and is respectively.
As shown in fig. 4, the anti-falling member 22 includes an anti-falling hole 23, an anti-falling rod 24, and an anti-falling plate 25, the anti-falling hole 23 is formed on the mounting plate 7, two ends of the mounting plate 7 are respectively formed with an anti-falling hole 23, the anti-falling rod 24 is slidably connected in the anti-falling hole 23, the anti-falling plate 25 is fixedly connected on the end face of the lower end of the anti-falling rod 24, a positioning nut 26 is screwed on the outer wall of the upper end of the anti-falling rod 24, and the positioning nut 26 is abutted against the upper surface of the mounting plate 7.
As shown in fig. 1, a reset mechanism 13 for conveniently resetting the placing rod 11 is arranged on the rotating rod, the reset mechanism 13 comprises a ring groove 27 and reset rollers 28, the ring groove 27 is formed in the outer wall of the rotating roller 2, the length of the ring groove 27 is longer than that of the mounting plate 7, and the reset rollers 28 are rotatably connected to the inner walls of the two sides of the bracket 1.
As shown in fig. 1 and 5, in order to facilitate the installation and the disassembly of the installation plate 7 by an operator, a connection mechanism 29 is arranged between the conveying net belt 3 and the installation plate 7, the connection mechanism 29 comprises a connection groove 30, a connection groove 31, a connection rod 32, a connection wheel 33 and a connection sheet 34, the connection groove 30 is arranged on the side wall of the installation plate 7, one side of the connection groove 30 is communicated with the outside, the bottom of the connection groove 30 is abutted against the inner wall of the installation groove 6, the grain and grass is arranged on the lower surface of the installation plate 7, the connection groove 31 is communicated with the connection groove 30, the connection rod 32 is fixedly connected on the inner walls of two sides of the connection groove 31, the connection wheel 33 eccentrically rotates and is connected with the outer race of the connection rod 32, the connection sheet 34 is fixedly connected on the outer wall of the connection wheel 33, and the connection sheet 34 is tangent with the outer wall of the connection wheel 33.
As shown in fig. 5, in order to improve the stability of the fifth wheel 33 abutting against the inner wall of the connecting groove 31, a connecting hole 35 is formed on the lower surface of the mounting plate 7, a locking hole 36 is formed on the inner wall of the connecting hole 35, the locking hole 36 is communicated with the connecting groove 31, a connecting rod 37 is rotatably connected in the connecting hole 35, a locking rod 38 is fixedly connected to the outer wall of the connecting rod 37, the locking rod 38 is rotatably connected in the locking hole 36, a locking groove 39 is formed on the outer wall of the fifth wheel 33, and the locking rod 38 is embedded in the locking groove 39 after rotating in the locking hole 36.
The working principle of the embodiment of the invention is as follows: placing the workpiece on the placing rods 11, enabling the placing rods 11 to move downwards, clamping the workpiece between the placing rods 11, driving the conveying mesh belt 3 to move by the driving motor 4, enabling the conveying mesh belt 3 to drive the workpiece to enter the furnace body 5, performing a carburizing process on the workpiece in the furnace body 5, enabling the anti-falling plate 25 to move upwards under the action of the guide wheel and the annular groove 27 after the workpiece comes out of the furnace body 5, enabling the anti-falling plate 25 to drive the placing rods 11 to move upwards, and enabling the workpiece to be separated from the placing rods 11 after the placing rods 11 move upwards and fall on the conveying mesh belt 3.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although 1, stent is used more herein; 2. a rotating roller; 3. conveying a mesh belt; 4. a driving motor; 5. a furnace body; 6. a mounting groove; 7. a mounting plate; 8. a through hole; 9. a connecting plate; 10. a through hole; 11. placing a rod; 12. a positioning mechanism; 13. a reset mechanism; 14. a first groove; 15. a second groove; 16. a first positioning block; 17. a second positioning block; 18. a first guide surface; 19. a second guide surface; 20. a first spring; 21. a second spring; 22. an anti-falling member; 23. an anti-drop hole; 24. an anti-drop rod; 25. an anti-drop plate; 26. positioning a nut; 27. a ring groove; 28. a reset roller; 29. a connecting mechanism; 30. a connecting groove; 31. a connecting groove; 32. a connecting rod; 33. a fifth wheel; 34. a connecting sheet; 35. a connection hole; 36. a locking hole; 37. a connecting rod; 38. a lock lever; 39. locking grooves, etc., but do not exclude the possibility of using other terms. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.
Claims (6)
1. A local carburization method for a locking piece is characterized by comprising the following steps of: comprises the steps of,
firstly, pre-treatment, namely cleaning greasy dirt on the surface of a workpiece, and drying the cleaned workpiece for later use;
secondly, brushing anti-seepage paint on the surface of the workpiece which does not need carburizing by a brushing device, and drying the brushed workpiece;
step three, placing the workpiece treated in the step two in a mesh-belt carburizing furnace for carburizing, and removing the paint on the surface;
step four, after the surface paint is removed, quenching heat treatment is carried out on the workpiece;
step five, after quenching is completed, desalting treatment is carried out on the surface of the workpiece;
step six, after desalting treatment is carried out on the workpiece, the surface of the workpiece is required to be coated with antirust paint;
step seven, finally cleaning and drying the workpiece;
the mesh belt carburizing furnace comprises a bracket (1), a rotating roller (2) is rotatably connected between the inner walls of two sides at two ends of the bracket (1), a conveying mesh belt (3) is wound between the two rotating rollers (2), a driving motor (4) for driving the rotating roller (2) to rotate is fixedly connected to the bracket (1), the furnace is characterized in that a furnace body (5) is arranged on the upper surface of the bracket (1), a plurality of mounting grooves (6) are formed in the conveying mesh belt (3) along the length direction of the conveying mesh belt (3), the mounting grooves (6) are formed in the length direction of the conveying mesh belt (3), a mounting plate (7) is mounted on the inner wall of the mounting grooves (6), a plurality of through holes (8) are formed in the mounting plate (7), a connecting plate (9) is fixedly connected to the inner wall of the through holes (8), a plurality of through holes (10) are uniformly formed in the connecting plate (9) at intervals, a placing rod (11) is arranged on the inner wall of the through holes (10) in a sliding mode, a positioning mechanism (12) is arranged between the outer wall of the placing rod (11) and the inner wall of the through holes (10) in a positioning mechanism for positioning the positioning position of the through holes (12), a reset mechanism (13) for resetting the conveniently placed rod (11) is arranged on the rotating roller (2); the positioning mechanism (12) comprises a plurality of first grooves (14) circumferentially arranged at the upper end of the outer wall of the placing rod (11) along the outer wall of the placing rod (11), a plurality of second grooves (15) circumferentially arranged on the outer wall of the placing rod (11) along the outer wall of the placing rod (11), a first positioning block (16) slidingly connected in the first grooves (14), a second positioning block (17) slidingly connected in the second grooves (15), a first guide surface (18) arranged on the upper and lower surfaces of one end, far away from the first grooves (14), of the first positioning block (16), a second guide surface (19) arranged on the upper and lower surfaces of one end, far away from the second grooves (15), of the second positioning block (17), a first spring (20) arranged in the first grooves (14), a second spring (21) arranged in the second grooves (15) and a retaining piece (22) arranged on the mounting plate (7) and used for preventing the placing rod (11) from being separated from the through holes (10), two ends of the first spring (20) are fixedly connected with the first positioning block (14) and the second grooves (14) and the two ends of the second positioning block (15) which are respectively arranged on the upper and lower surfaces of the first grooves (15) and the second grooves (15), one end of the first guide surface (18) is positioned in the first groove (14), and one end of the second guide surface (19) is positioned in the second groove (15).
2. The local carburization method for a locking member according to claim 1, wherein the anti-falling member (22) comprises anti-falling holes (23) formed on the upper surfaces of two ends of the mounting plate (7), anti-falling rods (24) connected to the inner walls of the anti-falling holes (23) in a sliding manner, and anti-falling plates (25) fixedly connected to the end faces of the lower ends of the anti-falling rods (24), and the anti-falling plates (25) are arranged in parallel with the mounting plate (7).
3. A method of local carburization of a locking member according to claim 2, wherein a positioning nut (26) is screwed onto the outer wall of the anti-slip rod (24), and the positioning nut (26) abuts against the upper surface of the mounting plate (7).
4. A method of local carburization of a locking member according to claim 3, wherein the reset mechanism (13) comprises a ring groove (27) formed in the outer wall of the rotating roller (2), and a reset roller (28) rotatably connected between the inner walls of the two sides of the bracket (1), and the length of the ring groove (27) is greater than the length of the mounting plate (7).
5. The local carburization method for a locking member according to claim 4, wherein a connecting mechanism (29) is arranged between the conveying mesh belt (3) and the mounting plate (7), the connecting mechanism (29) comprises a connecting groove (30) formed on the side wall of the mounting plate (7), a connecting groove (31) formed on the lower surface of the mounting plate (7), connecting rods (32) fixedly connected on the inner walls of two sides of the connecting groove (31), a connecting wheel (33) eccentrically and rotatably connected on the outer wall of the connecting rod (32) and connecting pieces (34) fixedly connected on the outer wall of the connecting wheel (33), one side of the connecting groove (30) is communicated with the outside, one end of the connecting groove (31) is communicated with the connecting groove (30), and the inner wall of the connecting groove (30) is abutted on the inner wall of the mounting groove (6).
6. The local carburization method for a locking member according to claim 5, wherein a connecting hole (35) is formed in the lower surface of the mounting plate (7), a locking hole (36) is formed in the inner wall of the connecting hole (35), the locking hole (36) is communicated with the connecting groove (31), a connecting rod (37) is rotationally connected to the connecting hole (35), a locking rod (38) is fixedly connected to the outer wall of the connecting rod (37), a locking groove (39) is formed in the outer wall of the connecting wheel (33), and one end of the locking rod (38) is embedded in the locking groove (39) after rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110982646.4A CN113737123B (en) | 2021-08-25 | 2021-08-25 | Local carburizing process for locking piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN113737123A (en) | 2021-12-03 |
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