CN108823521A - A kind of heat treatment process of taping block - Google Patents
A kind of heat treatment process of taping block Download PDFInfo
- Publication number
- CN108823521A CN108823521A CN201810663663.XA CN201810663663A CN108823521A CN 108823521 A CN108823521 A CN 108823521A CN 201810663663 A CN201810663663 A CN 201810663663A CN 108823521 A CN108823521 A CN 108823521A
- Authority
- CN
- China
- Prior art keywords
- taping block
- heat treatment
- carburizing
- temperature
- treatment process
- 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.)
- Pending
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
- C23C8/06—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
-
- 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
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F17/00—Multi-step processes for surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by subclass C21D or C22F or class C25
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
The invention discloses a kind of heat treatment process of taping block, are related to technical field of metal heat treatment, its key points of the technical solution are that：Including step S1：Pretreatment process；Step S2：Carburization step：Step S21：It is strong to seep process 1,920 ± 5 DEG C at a temperature of carburizing 25-35 minutes；Step S22：It is strong to seep process 2,880 ± 5 DEG C at a temperature of carburizing 145-155 minutes, carbon potential is identical as the carbon potential of the step S21；Step S23：Diffusing procedure 1,880 ± 5 DEG C at a temperature of carburizing 75-85 minutes, carbon potential be lower than the step S22 carbon potential；Step S24：Diffusing procedure 2,830 ± 5 DEG C at a temperature of carburizing 25-35 minutes, carbon potential is identical as the carbon potential of the step S23；Step S3：Quenching process；Step S4：Cleaning process；Step S5：Tempering process.The heat treatment process of this taping block improves production efficiency under the premise of possessing preferable carburizing quality；The temperature of each process, duration setting are reasonable, on comprehensive quality and efficiency more preferably.
Description
Technical field
The present invention relates to technical field of metal heat treatment, in particular to a kind of heat treatment process of taping block.
Background technique
Taping block is one of component of electric wrench, for transmitting torque when electric wrench works, and directly bears to open
The hitting power at dynamic initial stage, therefore the surface of taping block needs higher hardness, taping block generally uses at the heat of carburizing and quenching
Science and engineering skill improves surface hardness.
Existing application publication number is that the Chinese invention patent application of CN104805397A discloses a kind of gear carburizing quenching
Heat treatment process includes the following steps：Step 1：Carburizer preheating；Step 2：Deploy carburizer；Step 3：In carburizer
Carburizing, 800-910 DEG C of temperature, time 0.5-2.5 hour；Step 4：Quenching quenches 100-150 DEG C of oil temperature, 7 hours；Step
Five：Gear is cleaned；Step 6：Tempering：500-600 DEG C, 3 hours.
The existing technique for carrying out carburizing to taping block is similar with its；When carrying out carburizing, improving carburizing temperature can significantly be mentioned
Hypertonic carbon efficiencies, but it is also easy to produce carbon black, and reduce the uniformity of layer depth；Carburizing quality, but carburizing can be improved by reducing carburizing temperature
Speed is slow, and production efficiency is low.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of heat treatment process of taping block,
Under the premise of possessing preferable carburizing quality, high production efficiency.
Above-mentioned technical purpose of the invention technical scheme is that：A kind of heat treatment work of taping block
Skill includes the following steps：
Step S1：Taping block after washing and drying taping block in organic solvent, is put into gas and seeped by pretreatment process
In carbon furnace；
Step S2：Carburization step：
Step S21：It is strong to seep process 1,920 ± 5 DEG C at a temperature of carburizing 25-35 minutes；
Step S22：It is strong to seep process 2,880 ± 5 DEG C at a temperature of carburizing 145-155 minute, carbon potential and the step S21
Carbon potential it is identical；
Step S23：Diffusing procedure 1,880 ± 5 DEG C at a temperature of carburizing 75-85 minutes, carbon potential be lower than the step S22
Carbon potential；
Step S24：Diffusing procedure 2,830 ± 5 DEG C at a temperature of carburizing 25-35 minutes, carbon potential and the step S23's
Carbon potential is identical；
Step S3：Taping block is put into quenching oil and quenches by quenching process；
Step S4：Cleaning process takes out quenched taping block and clean；
Step S5：Taping block is put into tempering furnace and is tempered by tempering process, and 150-200 DEG C of tempering temperature.
Through the above technical solutions, taping block completes heat treatment, beating after heat treatment by carburizing, quenching, cleaning, tempering
Hit block rigidity with higher, hardness and wear-resisting property；The time of this heat treatment process, temperature proportion are reasonable, workpiece can be made to protect
Hold good quality.Meanwhile the temperature of step S21 is higher than the temperature in existing strong infiltration stage, then carburizing efficiency pole at this stage
Height, carbon can penetrate into deeper depth in a relatively short period of time；Under the requirement for reaching identical carburized layer depth, step S21 and step
Time needed for S22 is significantly shorter than completes the strong time for seeping the stage at 880 ± 5 DEG C of single temperature, improves production efficiency.
The diffusing procedure of step S23 and S24 slow down the permeating speed of new carbon, conducive to the Carbon diffusion entered in workpiece and make quality
Uniformly.After step S23 and S24, a small amount of carbon black generated when seeping by force is basically completed transfer diffusion, is not easy the matter to carburized layer
Amount causes to significantly affect, and need not increase the duration of diffusing procedure.
Preferably, the carbon potential of the step S21 and step S22 is 1.00 ± 0.05%.
Through the above technical solutions, the carbon potential of process gas has larger shadow to the carbon content after carburizing speed and workpiece carbonization
It rings, the too low then carburizing speed of carbon potential is excessively slow, and carbon potential is excessively high, is easy to produce carbon black, and taking carbon potential is 1.00 ± 0.05% more excellent
Choosing.
Preferably, the carbon potential of the step S23 and step S24 is 0.70 ± 0.05%.
Through the above technical solutions, diffusion phase must slow down the infiltration of new carbon, improve diffusion of the carbon in metallographic, to eliminate
Carbon black simultaneously keeps carburized layer homogeneous, so the carbon potential of diffusion phase must seep the stage lower than strong, taking carbon potential is 0.70 ± 0.05%
More preferably.
Preferably, the quenching oil temperature of the step S3 is 110 ± 5 DEG C.
Through the above technical solutions, quenching the rigidity, hardness and wearability for greatly improving taping block；Quench oil temperature
When too low, workpiece is easily deformed cracking, and when the temperature is excessively high, surface hardness is insufficient for quenching oil, and suitable quenching oil temperature is simultaneously
It is influenced by quenching oil type.Taking quenching oil temperature is 110 ± 5 DEG C more preferred.
Preferably, the carburizing agent flux of the step S2 is 50 ± 5mL/min of methanol, 7.5 ± 0.5L/min of propane.
Through the above technical solutions, methanol gasifying and and propane be mixed to form process gas, propane is as carrier gas, methanol energy
Enough cracking generate active atoms of carbon and penetrate into workpiece, take 50 ± 5mL/min of methanol (liquid), propane 7.5 ± 0.5L/min (gas
State) flow be preferred.
Preferably, 150-200 DEG C of tempering temperature of the step S5.
Through the above technical solutions, 150-200 DEG C of tempering temperature belongs to lonneal, it is tempered in this temperature range, energy
It is enough to keep the hardness and wearability that workpiece is high after quenching, reduce quenching residual stress and brittleness, the mechanical property of whole lifting workpieces
Energy.
Preferably, before the step S3, calcium monohydrogen phosphate, the weight of calcium monohydrogen phosphate and the weight of quenching oil are added in quenching oil
Amount is than being 1:100~1:150.
Through the above technical solutions, after calcium monohydrogen phosphate is added in quenching oil, when the weight and quenching oil of calcium monohydrogen phosphate
Weight ratio is 1:100~1:When 150, it can play the role of enhancing taping block hardened layer hardness.
Preferably, gas carbruizing furance includes the pallet for placing taping block, and when the step S2, pallet is in gas carburizing
Rotation in furnace.
Through the above technical solutions, the pallet of rotation makes that workpiece is driven to move in gas carbruizing furance when work, improve
The uniformity coefficient for acting on the carbon of workpiece surface makes the carburizing quality of all workpiece reach unanimity.
Preferably, multiple spray heads for spraying process gas, multiple sprays are equipped with when the step S2, in gas carbruizing furance
Head is located at the different location of pallet circumferential direction, and to progress multi-angle jet in gas carbruizing furance.
Through the above technical solutions, multi-faceted spray head improves the consistency of furnace atmosphere, improves effect when work
In the uniformity coefficient of the carbon of workpiece surface.
Preferably, further include step S25 between the step S24 and step S3：Process is detected, gas carburizing is taken
Each one piece of taping block in furnace at proximal edge and nearly center, the detection of carburized (case) depth is carried out, enters next work after detection is qualified
Sequence.
Through the above technical solutions, under normal circumstances, the taping block at tray edge and nearly center can reflect all
Two of workpiece extreme, therefore detects this workpiece at two, can reflect the state of all workpiece to a certain extent, meet sampling observation
It is required that.Workpiece is after detection is qualified, into subsequent processing；If unqualified, take more workpiece to be detected, scrap when necessary
This batch of workpiece is wasted time and the energy with reducing in subsequent handling.
In conclusion the present invention having the beneficial effect that in contrast to the prior art：
1, the heat treatment process of this taping block improves production efficiency under the premise of possessing preferable carburizing quality；
2, the temperature of each process, duration setting are rationally, more preferred on comprehensive quality and efficiency；
3, contact of the taping block in carburizing with process gas is more uniform, and the carburizing quality of all workpiece is made to tend to one
It causes.
Detailed description of the invention
Fig. 1 is the process flow chart of the heat treatment process of this taping block；
Fig. 2 is the internal structure chart of gas carbruizing furance in embodiment.
Appended drawing reference：10, gas carbruizing furance；20, pallet；30, spray head.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
A kind of heat treatment process of taping block, as shown in Figure 1, including the following steps：
Step S1：Taping block after washing and drying taping block in organic solvent, is put into gas and seeped by pretreatment process
In carbon furnace 10, pretreatment process is used to remove the grease stain before carburizing on taping block；
Step S2：Carburization step：
Step S21：It is strong to seep process 1,920 ± 5 DEG C at a temperature of carburizing 25-35 minute, carbon potential is 1.00 ± 0.05%；
Carburizing time in the present embodiment is 30 minutes, which is higher than the temperature in existing strong infiltration stage, then carburizing at this stage
Ultrahigh in efficiency, carbon can penetrate into deeper depth in a relatively short period of time.
Step S22：It is strong to seep process 2,880 ± 5 DEG C at a temperature of carburizing 145-155 minute, carbon potential for 1.00 ±
0.05%；Carburizing time in the present embodiment is 150 minutes；The temperature is lower than the carburizing temperature of step S21, the carburizing in the stage
It is carried out with conventional strong infiltration rate degree, while the step S21 that can releive to a certain extent generates the carbon black in workpiece surface.Reaching
Under the requirement of identical carburized layer depth, the time needed for step S21 and step S22 is significantly shorter than at 880 ± 5 DEG C of single temperature
The strong time for seeping the stage is completed, production efficiency is improved.
Step S23：Diffusing procedure 1,880 ± 5 DEG C at a temperature of carburizing 75-85 minutes, carbon potential be 0.70 ± 0.05%；
Carburizing time in the present embodiment is 80 minutes, this stage it is temperature-resistant, due to the reduction of carbon potential, while carburizing,
The carbon of workpiece surface is gradually shifted to deep layer, to form deeper carburized layer depth, while promoting carburized layer homogeneous.
Step S24：Diffusing procedure 2,830 ± 5 DEG C at a temperature of carburizing 25-35 minutes, carbon potential be 0.70 ± 0.05%；
Carburizing time in the present embodiment is 30 minutes, this stage reduces temperature, the permeating speed of new carbon is slowed down, conducive to having entered
Carbon diffusion in workpiece simultaneously makes homogeneous.After step S23 and S24, a small amount of carbon black generated when seeping by force is basically completed
Transfer diffusion, is not easy to cause to significantly affect to the quality of carburized layer, and need not increase the duration of diffusing procedure.
Above-mentioned step S21-S24 is carried out in gas carbruizing furance 10, and the carburizing agent flux of gas carburizing is methanol
50±
5mL/min (liquid), 7.5 ± 0.5L/min of propane (gaseous state).
As shown in Fig. 2, being equipped with multilayer in gas carbruizing furance 10 for placing the pallet 20 of taping block, for spraying process gas
Multiple spray heads 30 of body, pallet 20 are driven by shaft by the motor for being located at 10 bottom of gas carbruizing furance and are rotated, multiple spray heads 30
It is located at the circumferential position of the upper and lower end faces inside gas carbruizing furance 10, the emission direction of spray head 30 is towards pallet 20.Work
When making, 20 collective effect of pallet of multi-faceted spray head 30 and rotation improves the uniform of the carbon for acting on workpiece surface
Degree makes the carburizing quality of all workpiece reach unanimity.
Step S25：Process is detected, each one piece of taping block on pallet 20 at proximal edge and nearly center is taken, carries out carburized layer
The detection of depth.Detection can detect hardness with vickers hardness test method, detect carburized (case) depth, detection side with metallographic microscope
Therefore not to repeat here for formula.Under normal circumstances, the taping block at 20 edge of pallet and nearly center can reflect the two of all workpiece
It is a extreme, therefore this workpiece at two is detected, it can reflect the state of all workpiece to a certain extent, meet sampling observation and require.Work
Part is after detection is qualified, into subsequent processing；If unqualified, more workpiece is taken to be detected, scraps this batch of work when necessary
Part is wasted time and the energy with reducing in subsequent handling.
Step S3：Calcium monohydrogen phosphate, the weight of calcium monohydrogen phosphate and the weight ratio of quenching oil is added in quenching process in quenching oil
It is 1:100~1:150；Then taping block is put into quenching oil and is quenched, quenching oil temperature is 110 ± 5 DEG C.Quenching is for substantially
Improve rigidity, hardness and the wearability of taping block；When quenching oil temperature is too low, workpiece is easily deformed cracking, quenches oil temperature mistake
Gao Shi, surface hardness is insufficient, and suitable quenching oil temperature is also influenced by quenching oil type simultaneously.
Calcium monohydrogen phosphate is added when quenching, and the experimental data are shown in the following table shown in 1：
Table 1：
The above-mentioned hardened layer hardness measured is Vickers hardness number, and is averaged through many experiments.According to this experimental data,
The weight of calcium monohydrogen phosphate and the weight ratio of quenching oil are 1:100~1:When 150, the quench-hardened case of taping block is more significantly enhanced
Hardness makes the taping block produced possess higher surface hardness.
Step S4：Cleaning process takes out quenched taping block and clean.
Step S5：Taping block is put into tempering furnace and is tempered 115-125 minutes by tempering process, tempering temperature 150-200
℃；Tempering time in the present embodiment is 120 minutes, tempering temperature is 160 DEG C.It is tempered, is able to maintain in this temperature range
Workpiece high hardness and wearability after quenching reduces quenching residual stress and brittleness, the mechanical property of whole lifting workpieces.
To sum up, the heat treatment process of this taping block is completed to hit using processes such as pretreatment, strong infiltration, diffusion, quenching, tempering
The heat treatment of block, taping block rigidity with higher, hardness and wear-resisting property after heat treatment.The time of this heat treatment process,
Temperature proportion rationally, under the premise of making workpiece keep good quality, shortens the time of entire process, improves production effect
Rate.
The above is only exemplary embodiment of the invention, protection scope and is not intended to limit the present invention, this hair
Bright protection scope is determined by the attached claims.
Claims (10)
1. a kind of heat treatment process of taping block, it is characterized in that：Include the following steps：
Step S1：Taping block after washing and drying taping block in organic solvent, is put into gas carbruizing furance by pretreatment process
(10) in；
Step S2：Carburization step：
Step S21：It is strong to seep process 1,920 ± 5 DEG C at a temperature of carburizing 25-35 minutes；
Step S22：It is strong to seep process 2,880 ± 5 DEG C at a temperature of carburizing 145-155 minutes, the carbon of carbon potential and the step S21
Gesture is identical；
Step S23：Diffusing procedure 1,880 ± 5 DEG C at a temperature of carburizing 75-85 minutes, carbon potential be lower than the step S22 carbon
Gesture；
Step S24：Diffusing procedure 2,830 ± 5 DEG C at a temperature of carburizing 25-35 minutes, the carbon potential of carbon potential and the step S23
It is identical；
Step S3：Taping block is put into quenching oil and quenches by quenching process；
Step S4：Cleaning process takes out quenched taping block and clean；
Step S5：Taping block is put into tempering furnace and is tempered 115-125 minutes by tempering process.
2. a kind of heat treatment process of taping block according to claim 1, it is characterized in that：The step S21 and step S22
Carbon potential be 1.00 ± 0.05%.
3. a kind of heat treatment process of taping block according to claim 2, it is characterized in that：The step S23 and step S24
Carbon potential be 0.70 ± 0.05%.
4. a kind of heat treatment process of taping block according to claim 1, it is characterized in that：The quenching oil temperature of the step S3
Degree is 110 ± 5 DEG C.
5. a kind of heat treatment process of taping block according to claim 1, it is characterized in that：The carburizer stream of the step S2
Amount is 50 ± 5mL/min of methanol, 7.5 ± 0.5L/min of propane.
6. a kind of heat treatment process of taping block according to claim 1, it is characterized in that：The tempering temperature of the step S5
150-200℃。
7. a kind of heat treatment process of taping block according to claim 4, it is characterized in that：Before the step S3, quenching
Calcium monohydrogen phosphate is added in oily, the weight of calcium monohydrogen phosphate and the weight ratio of quenching oil are 1:100~1:150.
8. a kind of heat treatment process of taping block according to claim 1, it is characterized in that：Gas carbruizing furance (10) includes using
When the pallet (20) for placing taping block, the step S2, pallet (20) rotation in gas carbruizing furance (10).
9. a kind of heat treatment process of taping block according to claim 8, it is characterized in that：When the step S2, gas seeps
Multiple spray heads (30) for spraying process gas are equipped in carbon furnace (10), it is circumferential not that multiple spray heads (30) are located at pallet (20)
Same position, and to progress multi-angle jet in gas carbruizing furance (10).
10. a kind of heat treatment process of taping block according to claim 1, it is characterized in that：It further include being located at the step
Step S25 between S24 and step S3：Process is detected, the taping block at the interior proximal edge of gas carbruizing furance (10) and nearly center is taken
Each one piece, the detection of carburized (case) depth is carried out, enters subsequent processing after detection is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810663663.XA CN108823521A (en) | 2018-06-25 | 2018-06-25 | A kind of heat treatment process of taping block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810663663.XA CN108823521A (en) | 2018-06-25 | 2018-06-25 | A kind of heat treatment process of taping block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108823521A true CN108823521A (en) | 2018-11-16 |
Family
ID=64137631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810663663.XA Pending CN108823521A (en) | 2018-06-25 | 2018-06-25 | A kind of heat treatment process of taping block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108823521A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109321868A (en) * | 2018-12-07 | 2019-02-12 | 徐贲 | A kind of heat treatment process of high abrasion round-link chain |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010121790A (en) * | 2008-11-17 | 2010-06-03 | Toyota Motor Corp | Heat treatment method and heat treatment device |
| CN102154652A (en) * | 2011-03-11 | 2011-08-17 | 江苏南方轴承股份有限公司 | Medium-deep-layer carburization or carbonitriding thermal processing technology for bearings or clutch parts |
| CN105239034A (en) * | 2015-11-16 | 2016-01-13 | 南车戚墅堰机车车辆工艺研究所有限公司 | Impregnation and repair heat treatment method for carburized gear |
-
2018
- 2018-06-25 CN CN201810663663.XA patent/CN108823521A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010121790A (en) * | 2008-11-17 | 2010-06-03 | Toyota Motor Corp | Heat treatment method and heat treatment device |
| CN102154652A (en) * | 2011-03-11 | 2011-08-17 | 江苏南方轴承股份有限公司 | Medium-deep-layer carburization or carbonitriding thermal processing technology for bearings or clutch parts |
| CN105239034A (en) * | 2015-11-16 | 2016-01-13 | 南车戚墅堰机车车辆工艺研究所有限公司 | Impregnation and repair heat treatment method for carburized gear |
Non-Patent Citations (1)
| Title |
|---|
| 杨文杰等: "《金属材料热加工设备》", 31 August 2007, 哈尔滨工业大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109321868A (en) * | 2018-12-07 | 2019-02-12 | 徐贲 | A kind of heat treatment process of high abrasion round-link chain |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102877072B (en) | Technology for quickly carburizing gear like parts at variable temperatures and carbon potentials | |
| CN102912283A (en) | High-temperature variable-carbon potential quick carburizing treatment process for gear parts | |
| CN103233197A (en) | Low-temperature rapid ion nitriding method of austenitic stainless steel | |
| CN106119507A (en) | A kind of Technology for Heating Processing reducing the deformation of gear shaft keyway | |
| CN102719829A (en) | Surface hardening malcomising process for ductile cast iron hydraulic part | |
| CN108359785A (en) | A kind of strengthening and toughening treatment method of W6Mo5Cr4V2 high-speed steel broaches | |
| CN101851736A (en) | Environment-friendly nitrogen-enriched layer rapid nitriding treatment method | |
| CN110042339A (en) | A kind of vacuum carburization method for the speedup that cools down | |
| CN112593183A (en) | Heat treatment method for carburizing and quenching | |
| CN108823521A (en) | A kind of heat treatment process of taping block | |
| CN105568212B (en) | It is a kind of that the method for improving salt bath nitriding efficiency is pre-oxidized by salt bath | |
| CN103194721A (en) | Rapid QPQ (Quench-Polish-Quench) treatment method of application electric field and equipment thereof | |
| CN101693941B (en) | Method for quenching medium and low carbon alloy structural steel workpieces | |
| CN108913850A (en) | It is easy to the aero-engine blade mounting base produced in batches | |
| CN109778109A (en) | A method of it is off quality to solve carbo-nitriding | |
| CN108866300A (en) | A kind of heat treatment process of quartering hammer | |
| CN111719110A (en) | Heat treatment process for accurately controlling depth of carburized layer | |
| CN110318018A (en) | A kind of 9310 steel carbo-nitriding methods | |
| CN108588370A (en) | A kind of heat treatment method improving 8Cr4Mo4V bearing steel dimensional stabilitys | |
| CN115109899A (en) | Heat treatment process of low-carbon alloy steel material | |
| CN112708734A (en) | Heat treatment process for improving wear resistance | |
| CN113755671A (en) | Heat treatment method for improving fatigue performance of carburized G13Cr4Mo4Ni4V steel | |
| CN109295411A (en) | A kind of automobile transmission gear under Q&P&T technique | |
| CN106756759B (en) | Tough nitriding layer of a kind of ferrous alloy surface height and preparation method thereof | |
| RU2324001C1 (en) | Method of thearmal treatment and chemical-thearmal method of steel products processing in vacuum |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181116 |