CN110468371A - A kind of post-processing approach of high-strength durable rolling threaded male component - Google Patents
A kind of post-processing approach of high-strength durable rolling threaded male component Download PDFInfo
- Publication number
- CN110468371A CN110468371A CN201910874015.3A CN201910874015A CN110468371A CN 110468371 A CN110468371 A CN 110468371A CN 201910874015 A CN201910874015 A CN 201910874015A CN 110468371 A CN110468371 A CN 110468371A
- Authority
- CN
- China
- Prior art keywords
- temperature
- male component
- threaded male
- post
- strength durable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
- C23C8/02—Pretreatment of the material to be coated
-
- 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
- C23C8/34—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 more than one element being applied in more than one step
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention mainly relates to machine components processing technique fields, disclose a kind of post-processing approach of high-strength durable rolling threaded male component, comprising: cleaning, heating, carbo-nitriding, sulfurizing, quenching, tempering, overlay film；The post-processing approach of high-strength durable rolling threaded male component provided by the invention, the part hardness height obtained after externally threaded metal parts post-processes will be rolled in the application, wearability and corrosion resistance are strong, it can delay thread abrasion in the long-term use process, play preferable sealing effect, it can be widely applied for precision instrument, expand the scope of application of rolling threaded male component.
Description
Technical field
The invention mainly relates to machine components processing technique fields more particularly to a kind of high-strength durable to roll external screw thread zero
The post-processing approach of part.
Background technique
Screw thread is the spiral yarn shaped continuous lug boss with particular cross section produced on cylinder or circular cone parent surface
Point；Screw thread is divided into cylindrical thread and tapered tread by its parent shape；It is divided into external screw thread, interior spiral shell in parent present position by it
Line；It is divided into triangle thread, rectangular thread, trapezoidal thread, saw-tooth thread and other special forms by its cross sectional shape (tooth form)
Shape screw thread；Die methods, rolling process, thread rolling method, rolled thread method, cutting method, thread milling machine would generally be used in the preparation process of screw thread
Cut method, thread grinding method, screw thread polishing, tapping and mantle fiber method and turning method；Wherein rolling process is made with forming roll die
The processing method that workpiece is deformed to obtain screw thread, suitable for producing standard fasteners and other thread connectors in enormous quantities
External screw thread, and the thread surface roughness of rolling process preparation is small, and precision is higher, can be used in precision instrument, but rolls
The hardness for pressing screw thread to require workpiece material is no more than HRC40, and hardness is higher to cause very big difficulty to the preparation of rolled thread,
But hardness is lower to make part thread abrasion in use for some time, shorten the service life of part, it is therefore desirable to roll
Pressure thread part is post-processed after being made to improve the intensity of part and durability.
Existing patent document CN1718992 discloses a kind of surface treatment method of internal thread of stainless steel oil pipe collar, specifically
It discloses and first the internal screw thread of stainless steel oil pipe is pre-processed, then carry out nitrogen treatment, cleaning, hydrochloric acid activation and phosphorus again
Change, be usually all used as the pre-treating method of metal deposit, can be improved the binding ability of metal and film layer, in patent document
It is the anti-galling ability in order to improve internal screw thread by a variety of processing methods, it is not satisfactory to the enhanced strength effect of metal.
Summary of the invention
In order to make up the defect of prior art, the object of the present invention is to provide a kind of high-strength durables to roll threaded male component
Post-processing approach.
A kind of post-processing approach of high-strength durable rolling threaded male component, comprising the following steps:
(1) it clears up: molding rolling threaded male component being placed in sodium bicarbonate solution and is cleaned by ultrasonic, then is rinsed with clear water
Completely, it is dried in 70 ~ 80 DEG C of baking oven, the spot of piece surface can be removed, improved the post-processing effect of part, obtain
Cleaning piece；
(2) it heats: cleaning piece is placed in heating furnace, be heated to 340 ~ 380 DEG C with the speed of 3 ~ 4 DEG C/min, heat preservation 50 ~
60min is continued to be heated to 660 ~ 710 DEG C, keeps the temperature 60 ~ 90min, keep part internal and external temperature consistent, dropped with the speed of 4 ~ 5 DEG C/min
Temperature keeps the temperature 30 ~ 40min, is down to room temperature naturally to 470 ~ 490 DEG C, can reduce the crystalline substance of part by interim heating and cooling
Lattice partial size improves the consistency of part, increases the hardness and wearability of part, obtains heating member；
(3) carbo-nitriding: heating member is placed in vacuum drying oven, is first heated to 840 ~ 880 DEG C with the speed of 3 ~ 4 DEG C/min, heat preservation
50 ~ 60min is naturally cooling to 530 ~ 550 DEG C, is passed through carbon dioxide, keeps the temperature 40 ~ 60min, is naturally cooling to 500 ~ 520 DEG C, then
It is passed through carbon dioxide and ammonia simultaneously, keeps 150 ~ 180min of temperature, so that carbon and nitrogen is penetrated into inside parts, densification is played to part
Protecting effect, improve the hardness and anticorrosion effect of part, avoid the corrosive goods confrontation screw thread in use process in environment
It causes to corrode, extends the leakproofness and service life of screw thread, obtain carbo-nitriding part；
(4) sulfurizing: the temperature to carbo-nitriding part is down to 280 ~ 300 DEG C, is passed through hydrogen sulfide, keeps 120 ~ 150min of temperature, from
It so is down to room temperature, is combined sulphur with iron, can be improved the wearability of part, avoids screw thread in the situation for bearing intensified pressure
Under there is disrepair phenomenon, extend the using effect of screw thread, obtain sulfurizing part；
(5) it quenches: sulfurizing part being heated to 870 ~ 930 DEG C, keeps the temperature 20 ~ 30min, is taken out, is placed in quenching liquid, is naturally cooling to
70 ~ 80 DEG C, make quenching liquid and part high temperature contact, part can not only be made to be changed into martensite from austenite, further decrease crystalline substance
Lattice partial size, moreover it is possible to form fine and close nanometer protective layer in piece surface, enhance the compactness and wearability of part, obtain quenching part；
(6) it is tempered: quenching part is placed in heating furnace, be heated to 210 ~ 230 DEG C with the speed of 3 ~ 4 DEG C/min, heat preservation 40 ~
50min, then 350 ~ 390 DEG C are heated to the speed of 2 ~ 3 DEG C DEG C/min, 20 ~ 30min is kept the temperature, eliminates part because quenching fast prompt drop
Fine cracks that are warm and leading to internal generation, improve the intensity and durability of screw thread and part, obtain tempering part；
(7) overlay film: part temperature to be tempered is down to 70 ~ 80 DEG C, in oil surface, with a thickness of 10 ~ 15 μm, keeps the temperature 15 ~ 20min, from
So be down to room temperature, can corrosive substance in isolation environment, extend the service life of thread part, obtain high-strength durable rolling
Threaded male component.
The sodium bicarbonate solution of the step (1), temperature are 40 ~ 45 DEG C, and mass percentage concentration is 2 ~ 3%.
The carbon dioxide of the step (3), the flow of carbon dioxide are 4.8 ~ 5.2m3/h。
The ammonia of the step (3), the flow of ammonia are 10 ~ 12m3/h。
The hydrogen sulfide of the step (4), flow are 4.1 ~ 4.3m3/h。
For the nano titanium oxide dispersion containing phosphoric acid nano-silica is added in phosphoric acid by the quenching liquid of the step (5)
Change in titanium dispersion liquid, stir to being completely dissolved, make 13 ~ 15mg/L of concentration of phosphoric acid, the partial size of nano-titanium dioxide for 10 ~
15nm, concentration are 20 ~ 25ppm.
The high-strength durable that the post-processing approach of the high-strength durable rolling threaded male component is prepared rolls outer spiral shell
Line part.
The invention has the advantages that the post-processing approach of high-strength durable rolling threaded male component provided by the invention, this Shen
Please in will roll that the part hardness that obtains after externally threaded metal parts is post-processed is high, and wearability and corrosion resistance are strong, In
It can delay thread abrasion in long-term use process, play preferable sealing effect, can be widely applied for precision instrument, expand
Roll the scope of application of threaded male component；Rolling threaded male component after molding is first subjected to sodium bicarbonate solution cleaning and clear water
It rinses, the spot of piece surface can be removed, improve the post-processing effect of part；Part is heated after cleaning, is first heated
It is kept the temperature after to certain temperature, is further continued for carrying out heating and long Shi Baowen, keeps part internal and external temperature consistent, then carry out fast prompt drop
Mild heat preservation, carries out Temperature fall again later, can reduce the lattice partial size of part by interim heating and cooling, improves zero
The consistency of part increases the hardness and wearability of part；First carburizing is carried out to part after heating, carbo-nitriding is then carried out, makes
Carbon and nitrogen penetrate into inside parts, and fine and close protecting effect is played to part, the hardness and anticorrosion effect of part is improved, avoids making
It causes to corrode with the corrosive goods confrontation screw thread in process middle ring border, extends the leakproofness and service life of screw thread；Carbo-nitriding
Certain temperature is down to part afterwards and carries out sulfurizing again, is combined sulphur with iron, be can be improved the wearability of part, is avoided screw thread
There is disrepair phenomenon under the situation for bearing intensified pressure, extends the using effect of screw thread；Part is quenched after sulfurizing, is made
Quenching liquid and part high temperature contact, can not only make part be changed into martensite from austenite, further decrease lattice partial size, moreover it is possible to
Fine and close nanometer protective layer is formed in piece surface, enhances the compactness and wearability of part；Then it is tempered again, eliminates zero
Part leads to the internal fine cracks generated because quenching fast cooling, improves the intensity and durability of screw thread and part；Finally again
Piece surface carries out oiling, can corrosive substance in isolation environment, extend the service life of thread part.
Specific embodiment
Illustrate the present invention with specific embodiment below.
Embodiment 1
A kind of post-processing approach of high-strength durable rolling threaded male component, comprising the following steps:
(1) it clears up: it is molten that molding rolling threaded male component being placed in the sodium bicarbonate that temperature is 40 DEG C, mass percentage concentration is 2%
It is cleaned by ultrasonic in liquid, then is rinsed well with clear water, is dried in 70 DEG C of baking oven, the dirt of piece surface can be removed
Stain improves the post-processing effect of part, obtains cleaning piece；
(2) it heats: cleaning piece is placed in heating furnace, be heated to 340 DEG C with the speed of 3 DEG C/min, keep the temperature 50min, continue to add
Heat keeps the temperature 60min, keeps part internal and external temperature consistent to 660 DEG C, is cooled to 470 DEG C with the speed of 4 DEG C/min, keeps the temperature 30min,
Naturally it is down to room temperature, the lattice partial size of part is can reduce by interim heating and cooling, improves the consistency of part, increase
The hardness and wearability of part, obtain heating member；
(3) carbo-nitriding: heating member is placed in vacuum drying oven, is first heated to 840 DEG C with the speed of 3 DEG C/min, keeps the temperature 50min,
530 DEG C are naturally cooling to, carbon dioxide is passed through, the flow of carbon dioxide is 4.8m3/ h keeps the temperature 40min, is naturally cooling to 500
DEG C, then it is passed through carbon dioxide and ammonia simultaneously, the flow of carbon dioxide is 4.8m3/ h, the flow of ammonia are 10m3/ h keeps temperature
150min is spent, carbon and nitrogen is made to penetrate into inside parts, fine and close protecting effect is played to part, improves the hardness of part and corrosion-resistant
Effect avoids the corrosive goods confrontation screw thread in use process in environment from causing to corrode, and extends the leakproofness of screw thread and uses the longevity
Life, obtains carbo-nitriding part；
(4) sulfurizing: the temperature to carbo-nitriding part is down to 280 DEG C, is passed through hydrogen sulfide, flow 4.1m3/ h keeps temperature
120min is down to room temperature naturally, is combined sulphur with iron, can be improved the wearability of part, and screw thread is avoided to bear to increase
There is disrepair phenomenon under the situation of pressure, extend the using effect of screw thread, obtains sulfurizing part；
(5) quench: sulfurizing part being heated to 870 DEG C, keeps the temperature 20min, takes out, is placed in quenching liquid, the quenching liquid, for containing
There is the nano titanium oxide dispersion of phosphoric acid, phosphoric acid is added in nano titanium oxide dispersion, stirs to being completely dissolved, make phosphorus
The concentration of acid is 13mg/L, and the partial size of nano-titanium dioxide is 10nm, and concentration 20ppm is naturally cooling to 70 DEG C, makes quenching liquid
With part high temperature contact, part can not only be made to be changed into martensite from austenite, further decrease lattice partial size, moreover it is possible in part
Surface forms fine and close nanometer protective layer, enhances the compactness and wearability of part, obtains quenching part；
(6) it is tempered: quenching part is placed in heating furnace, be heated to 210 DEG C with the speed of 3 DEG C/min, keep the temperature 40min, then with 2 DEG C
DEG C/speed of min is heated to 350 DEG C, 20min is kept the temperature, eliminating part leads to the tiny of internal generation because quench fast cooling
Crackle improves the intensity and durability of screw thread and part, obtains tempering part；
(7) overlay film: part temperature to be tempered is down to 70 DEG C, in oil surface, with a thickness of 10 ~ 15 μm, keeps the temperature 15min, is down to naturally
Room temperature, can corrosive substance in isolation environment, extend the service life of thread part, obtain high-strength durable rolling external screw thread
Part.
Embodiment 2
A kind of post-processing approach of high-strength durable rolling threaded male component, comprising the following steps:
(1) it clears up: molding rolling threaded male component is placed in the sodium bicarbonate that temperature is 43 DEG C, mass percentage concentration is 2.5%
It is cleaned by ultrasonic in solution, then is rinsed well with clear water, is dried in 75 DEG C of baking oven, piece surface can be removed
Spot improves the post-processing effect of part, obtains cleaning piece；
(2) it heats: cleaning piece is placed in heating furnace, be heated to 360 DEG C with the speed of 3.5 DEG C/min, keep the temperature 55min, continue
680 DEG C are heated to, 75min is kept the temperature, keeps part internal and external temperature consistent, is cooled to 480 DEG C with the speed of 4.5 DEG C/min, heat preservation
35min is down to room temperature naturally, can reduce the lattice partial size of part by interim heating and cooling, improves the densification of part
Degree, increases the hardness and wearability of part, obtains heating member；
(3) carbo-nitriding: heating member is placed in vacuum drying oven, is first heated to 860 DEG C with the speed of 3.5 DEG C/min, heat preservation
55min is naturally cooling to 540 DEG C, is passed through carbon dioxide, and the flow of carbon dioxide is 5m3/ h keeps the temperature 50min, is naturally cooling to
510 DEG C, then it is passed through carbon dioxide and ammonia simultaneously, the flow of carbon dioxide is 5m3/ h, the flow of ammonia are 11m3/ h keeps temperature
165min is spent, carbon and nitrogen is made to penetrate into inside parts, fine and close protecting effect is played to part, improves the hardness of part and corrosion-resistant
Effect avoids the corrosive goods confrontation screw thread in use process in environment from causing to corrode, and extends the leakproofness of screw thread and uses the longevity
Life, obtains carbo-nitriding part；
(4) sulfurizing: the temperature to carbo-nitriding part is down to 290 DEG C, is passed through hydrogen sulfide, flow 4.2m3/ h keeps temperature
130min is down to room temperature naturally, is combined sulphur with iron, can be improved the wearability of part, and screw thread is avoided to bear to increase
There is disrepair phenomenon under the situation of pressure, extend the using effect of screw thread, obtains sulfurizing part；
(5) quench: sulfurizing part being heated to 900 DEG C, keeps the temperature 25min, takes out, is placed in quenching liquid, the quenching liquid, for containing
There is the nano titanium oxide dispersion of phosphoric acid, phosphoric acid is added in nano titanium oxide dispersion, stirs to being completely dissolved, make phosphorus
The concentration of acid is 14mg/L, and the partial size of nano-titanium dioxide is 13nm, and concentration 23ppm is naturally cooling to 75 DEG C, makes quenching liquid
With part high temperature contact, part can not only be made to be changed into martensite from austenite, further decrease lattice partial size, moreover it is possible in part
Surface forms fine and close nanometer protective layer, enhances the compactness and wearability of part, obtains quenching part；
(6) it is tempered: quenching part is placed in heating furnace, be heated to 220 DEG C with the speed of 3.5 DEG C/min, keep the temperature 45min, then with
The speed of 2.5 DEG C DEG C/min is heated to 370 DEG C, keeps the temperature 25min, and eliminating part leads to internal generation because quenching fast cooling
Fine cracks improve the intensity and durability of screw thread and part, obtain tempering part；
(7) overlay film: part temperature to be tempered is down to 75 DEG C, in oil surface, with a thickness of 10 ~ 15 μm, keeps the temperature 18min, is down to naturally
Room temperature, can corrosive substance in isolation environment, extend the service life of thread part, obtain high-strength durable rolling external screw thread
Part.
Embodiment 3
A kind of post-processing approach of high-strength durable rolling threaded male component, comprising the following steps:
(1) it clears up: it is molten that molding rolling threaded male component being placed in the sodium bicarbonate that temperature is 45 DEG C, mass percentage concentration is 3%
It is cleaned by ultrasonic in liquid, then is rinsed well with clear water, is dried in 80 DEG C of baking oven, the dirt of piece surface can be removed
Stain improves the post-processing effect of part, obtains cleaning piece；
(2) it heats: cleaning piece is placed in heating furnace, be heated to 380 DEG C with the speed of 4 DEG C/min, keep the temperature 60min, continue to add
Heat keeps the temperature 90min, keeps part internal and external temperature consistent to 710 DEG C, is cooled to 490 DEG C with the speed of 5 DEG C/min, keeps the temperature 40min,
Naturally it is down to room temperature, the lattice partial size of part is can reduce by interim heating and cooling, improves the consistency of part, increase
The hardness and wearability of part, obtain heating member；
(3) carbo-nitriding: heating member is placed in vacuum drying oven, is first heated to 880 DEG C with the speed of 4 DEG C/min, keeps the temperature 60min,
550 DEG C are naturally cooling to, carbon dioxide is passed through, the flow of carbon dioxide is 5.2m3/ h keeps the temperature 60min, is naturally cooling to 520
DEG C, then it is passed through carbon dioxide and ammonia simultaneously, the flow of carbon dioxide is 5.2m3/ h, the flow of ammonia are 12m3/ h keeps temperature
180min is spent, carbon and nitrogen is made to penetrate into inside parts, fine and close protecting effect is played to part, improves the hardness of part and corrosion-resistant
Effect avoids the corrosive goods confrontation screw thread in use process in environment from causing to corrode, and extends the leakproofness of screw thread and uses the longevity
Life, obtains carbo-nitriding part；
(4) sulfurizing: the temperature to carbo-nitriding part is down to 300 DEG C, is passed through hydrogen sulfide, flow 4.3m3/ h keeps temperature
150min is down to room temperature naturally, is combined sulphur with iron, can be improved the wearability of part, and screw thread is avoided to bear to increase
There is disrepair phenomenon under the situation of pressure, extend the using effect of screw thread, obtains sulfurizing part；
(5) quench: sulfurizing part being heated to 930 DEG C, keeps the temperature 30min, takes out, is placed in quenching liquid, the quenching liquid, for containing
There is the nano titanium oxide dispersion of phosphoric acid, phosphoric acid is added in nano titanium oxide dispersion, stirs to being completely dissolved, make phosphorus
The concentration of acid is 15mg/L, and the partial size of nano-titanium dioxide is 15nm, and concentration 5ppm is naturally cooling to 80 DEG C, makes quenching liquid
With part high temperature contact, part can not only be made to be changed into martensite from austenite, further decrease lattice partial size, moreover it is possible in part
Surface forms fine and close nanometer protective layer, enhances the compactness and wearability of part, obtains quenching part；
(6) it is tempered: quenching part is placed in heating furnace, be heated to 230 DEG C with the speed of 4 DEG C/min, keep the temperature 50min, then with 3 DEG C
DEG C/speed of min is heated to 390 DEG C, 30min is kept the temperature, eliminating part leads to the tiny of internal generation because quench fast cooling
Crackle improves the intensity and durability of screw thread and part, obtains tempering part；
(7) overlay film: part temperature to be tempered is down to 80 DEG C, in oil surface, with a thickness of 10 ~ 15 μm, keeps the temperature 20min, is down to naturally
Room temperature, can corrosive substance in isolation environment, extend the service life of thread part, obtain high-strength durable rolling external screw thread
Part.
Comparative example 1
The continuation heating period in step (2) is removed, the soaking time of heating for the first time, remaining method, with implementation are accordingly extended
Example 1.
Comparative example 2
It is passed through carbon dioxide in removal step (3), is directly passed through carbon dioxide and ammonia simultaneously, remaining method, with implementation
Example 1.
Comparative example 3
The flow of hydrogen sulfide in step (4) is 6.3m3/ h, remaining method, with embodiment 1.
Comparative example 4
Remove the phosphoric acid in the quenching liquid in step (5), remaining method, with embodiment 1.
Comparative example 5
Existing patent document CN1718992 discloses a kind of surface treatment method of internal thread of stainless steel oil pipe collar.
The performance parameter of embodiment and comparative example thread part:
The thread part of selection example and comparative example 1 ~ 5 respectively, according to the hard of GB/T228-2010 detection each group thread part
Spend HRC and tensile strength Rm(N/mm2)；Selection 2 are used for Surface testing, record roughness (μm) and wearability (mm3)；Normal
Under normal temperature and pressure, each group selects 2 NaCl aqueous solutions for being placed in 6mol/L respectively, selects 2 HCL aqueous solutions for being placed in 6mol/L,
Selection 2 is placed in the NaOH aqueous solution of 6mol/L, and the time (d) corroded occurs in observation each group thread part, embodiment and right
The performance parameter of ratio steering shaft is shown in Table 1.
Table 1: the performance parameter of embodiment and comparative example steering shaft
From table 1 the result shows that, the high-strength durable of embodiment rolls threaded male component, and hardness and tensile strength are high, roughness
Obviously small compared with comparative example, the Volume Loss amount after friction is obviously small compared with comparative example, acid and alkali resistance, salt performance obviously compared with comparative example
By force, illustrate high-strength durable rolling threaded male component practicability with higher provided by the invention.
Claims (7)
1. a kind of post-processing approach of high-strength durable rolling threaded male component, which comprises the following steps:
(1) it clears up: molding rolling threaded male component being placed in sodium bicarbonate solution and is cleaned by ultrasonic, then is rinsed with clear water
Completely, it is dried in 70 ~ 80 DEG C of baking oven, obtains cleaning piece；
(2) it heats: cleaning piece is placed in heating furnace, be heated to 340 ~ 380 DEG C with the speed of 3 ~ 4 DEG C/min, heat preservation 50 ~
60min continues to be heated to 660 ~ 710 DEG C, keeps the temperature 60 ~ 90min, is cooled to 470 ~ 490 DEG C with the speed of 4 ~ 5 DEG C/min, heat preservation
30 ~ 40min is down to room temperature naturally, obtains heating member；
(3) carbo-nitriding: heating member is placed in vacuum drying oven, is first heated to 840 ~ 880 DEG C with the speed of 3 ~ 4 DEG C/min, heat preservation
50 ~ 60min is naturally cooling to 530 ~ 550 DEG C, is passed through carbon dioxide, keeps the temperature 40 ~ 60min, is naturally cooling to 500 ~ 520 DEG C, then
It is passed through carbon dioxide and ammonia simultaneously, keeps 150 ~ 180min of temperature, obtains carbo-nitriding part；
(4) sulfurizing: the temperature to carbo-nitriding part is down to 280 ~ 300 DEG C, is passed through hydrogen sulfide, keeps 120 ~ 150min of temperature, from
It so is down to room temperature, obtains sulfurizing part；
(5) it quenches: sulfurizing part being heated to 870 ~ 930 DEG C, keeps the temperature 20 ~ 30min, is taken out, is placed in quenching liquid, is naturally cooling to
70 ~ 80 DEG C, obtain quenching part；
(6) it is tempered: quenching part is placed in heating furnace, be heated to 210 ~ 230 DEG C with the speed of 3 ~ 4 DEG C/min, heat preservation 40 ~
50min, then 350 ~ 390 DEG C are heated to the speed of 2 ~ 3 DEG C DEG C/min, 20 ~ 30min is kept the temperature, tempering part is obtained；
(7) overlay film: part temperature to be tempered is down to 70 ~ 80 DEG C, in oil surface, with a thickness of 10 ~ 15 μm, keeps the temperature 15 ~ 20min, from
It so is down to room temperature, obtains high-strength durable rolling threaded male component.
2. the post-processing approach of high-strength durable rolling threaded male component according to claim 1, which is characterized in that the step
Suddenly the sodium bicarbonate solution of (1), temperature are 40 ~ 45 DEG C, and mass percentage concentration is 2 ~ 3%.
3. the post-processing approach of high-strength durable rolling threaded male component according to claim 1, which is characterized in that the step
Suddenly the carbon dioxide of (3), the flow of carbon dioxide are 4.8 ~ 5.2m3/h。
4. the post-processing approach of high-strength durable rolling threaded male component according to claim 1, which is characterized in that the step
Suddenly the ammonia of (3), the flow of ammonia are 10 ~ 12m3/h。
5. the post-processing approach of high-strength durable rolling threaded male component according to claim 1, which is characterized in that the step
Suddenly the hydrogen sulfide of (4), flow are 4.1 ~ 4.3m3/h。
6. the post-processing approach of high-strength durable rolling threaded male component according to claim 1, which is characterized in that the step
Suddenly phosphoric acid is added in nano titanium oxide dispersion for the nano titanium oxide dispersion containing phosphoric acid for the quenching liquid of (5),
Stirring makes 13 ~ 15mg/L of concentration of phosphoric acid to being completely dissolved, and the partial size of nano-titanium dioxide is 10 ~ 15nm, concentration for 20 ~
25ppm。
What 7. a kind of post-processing approach of any one of claim 1 ~ 6 high-strength durable rolling threaded male component was prepared
High-strength durable rolls threaded male component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910874015.3A CN110468371A (en) | 2019-09-17 | 2019-09-17 | A kind of post-processing approach of high-strength durable rolling threaded male component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910874015.3A CN110468371A (en) | 2019-09-17 | 2019-09-17 | A kind of post-processing approach of high-strength durable rolling threaded male component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110468371A true CN110468371A (en) | 2019-11-19 |
Family
ID=68516038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910874015.3A Withdrawn CN110468371A (en) | 2019-09-17 | 2019-09-17 | A kind of post-processing approach of high-strength durable rolling threaded male component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110468371A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735146A (en) * | 2019-12-10 | 2020-01-31 | 安徽省信誉机械有限责任公司 | Treatment method of wear-resistant and corrosion-resistant dough roller |
| CN110747318A (en) * | 2019-12-04 | 2020-02-04 | 界首市锦田农业机械装备有限公司 | Compression-resistant treatment method for hot coil spring |
| CN114654178A (en) * | 2022-05-17 | 2022-06-24 | 山东建筑大学 | Machining method for high-precision wear-resistant turbocharger bearing |
-
2019
- 2019-09-17 CN CN201910874015.3A patent/CN110468371A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747318A (en) * | 2019-12-04 | 2020-02-04 | 界首市锦田农业机械装备有限公司 | Compression-resistant treatment method for hot coil spring |
| CN110735146A (en) * | 2019-12-10 | 2020-01-31 | 安徽省信誉机械有限责任公司 | Treatment method of wear-resistant and corrosion-resistant dough roller |
| CN114654178A (en) * | 2022-05-17 | 2022-06-24 | 山东建筑大学 | Machining method for high-precision wear-resistant turbocharger bearing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110468371A (en) | A kind of post-processing approach of high-strength durable rolling threaded male component | |
| Zhang et al. | Effect of shot peening on residual stress distribution and tribological behaviors of 17Cr2Ni2MoVNb steel | |
| Farrahi et al. | An investigation into the effect of various surface treatments on fatigue life of a tool steel | |
| CN101487487B (en) | Manufacturing process for stress relaxation-resistant high-strength bolt | |
| Qin et al. | Effects of ultrasonic nanocrystal surface modification on the wear and micropitting behavior of bearing steel in boundary lubricated steel-steel contacts | |
| CN103276345B (en) | QPQ salt bath composite strengthening and modifying high and new technology applied to automobile component metal surface | |
| Harada et al. | Effects of microshot peening on surface characteristics of high-speed tool steel | |
| CN108866472B (en) | Metal material surface treatment method | |
| CN108160741A (en) | Press part steel alloy wire rod preparation method, press part and its hardening and tempering process | |
| CN102233364B (en) | Martensite air valve steel bar production method | |
| CN1068385C (en) | ultra hypoeutectoid, diphasic stainless steel, and prodn. method thereof | |
| CN107937922A (en) | A kind of impervious carbon distorsion during quenching control method of large scale double helical gear | |
| CN101392361A (en) | Nitrocarburizing method of martensitic stainless steel and preparation method thereof | |
| Zeng et al. | Investigation on the scuffing resistance of ductile cast iron as affected by fine particle bombardment to produce surface hardened layer and micro-dimpled surface | |
| CN107448581A (en) | Anti abrasive accurate harmonic speed reducer | |
| CN102861784B (en) | Mid-carbon, nickel, chromium, molybdenum and vanadium alloy steel seamless tube and production method therefore | |
| CN104561828B (en) | Austenitic stainless steel and preparation method thereof | |
| CN107309612A (en) | A kind of gas cylinder Hot drawing manufacture method of high corrosion resistant | |
| CN104630652B (en) | A kind of low-alloy heat-resistant high-strength steel, steel beam column and preparation method thereof | |
| CN100496800C (en) | Method for manufacturing blade forged piece of heavy type combustion engine | |
| CN115537540A (en) | Heat treatment method for small conical bearing | |
| JP2020012165A (en) | Production method of work made of hydrogen embrittlement prevention steel | |
| Ni et al. | Research progress of cold working die steel | |
| CN111304416A (en) | Softening annealing heat treatment method for 2Cr13 stainless steel | |
| JP4963918B2 (en) | Method for annealing low carbon steel containing Cr |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191119 |
|
| WW01 | Invention patent application withdrawn after publication |