CN106498144B - The gradient hardness heat treatment method of complete-section tunnel boring machine hobboing cutter cutter ring - Google Patents
The gradient hardness heat treatment method of complete-section tunnel boring machine hobboing cutter cutter ring Download PDFInfo
- Publication number
- CN106498144B CN106498144B CN201610956327.5A CN201610956327A CN106498144B CN 106498144 B CN106498144 B CN 106498144B CN 201610956327 A CN201610956327 A CN 201610956327A CN 106498144 B CN106498144 B CN 106498144B
- Authority
- CN
- China
- Prior art keywords
- cutter
- cutter ring
- hobboing cutter
- ring
- hobboing
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000010438 heat treatment Methods 0.000 title claims abstract description 21
- 238000010791 quenching Methods 0.000 claims abstract description 28
- 230000000171 quenching effect Effects 0.000 claims abstract description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 30
- 229910052799 carbon Inorganic materials 0.000 claims description 30
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000005253 cladding Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000001816 cooling Methods 0.000 description 7
- 239000010425 asbestos Substances 0.000 description 4
- 229910052895 riebeckite Inorganic materials 0.000 description 4
- 238000010923 batch production Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/22—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for drills; for milling cutters; for machine cutting tools
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
- C21D1/70—Temporary coatings or embedding materials applied before or during heat treatment while heating or quenching
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Gear Processing (AREA)
Abstract
The gradient hardness heat treatment method of complete-section tunnel boring machine hobboing cutter cutter ring belongs to vacuum heat treatment technology field, it is therefore intended that the problem of solving complex process, the low production efficiency that prior art is present.The gradient hardness heat treatment method of the complete-section tunnel boring machine hobboing cutter cutter ring of the present invention comprises the following steps：The hobboing cutter cutter ring assembling of multiple same specifications is obtained to integral multiple hobboing cutter cutter rings combination；The hobboing cutter cutter ring combination of acquisition is subjected to vacuum hardening processing；Hobboing cutter cutter ring combination to quenched processing carries out 23 tempers, cutter ring hardness is reached technological requirement, completes heat treatment.The present invention realizes the gradient hardness of vacuum oil quenching hobboing cutter cutter ring using quenching technical is adjusted, and the supplementary structure used is simple, improves production efficiency.
Description
Technical field
The invention belongs to vacuum heat treatment technology field, and in particular to a kind of ladder of complete-section tunnel boring machine hobboing cutter cutter ring
Spend hardness heat treatment method.
Background technology
Hardness of TBM (complete-section tunnel boring machine) the hobboing cutter cutter ring from end to blade hardness in gradient from low to high, can
To improve assembling quality, be conducive to improving the service life of cutter ring, but each position hardness of cutter ring of the overwhelming majority is all equal at present
Even.For gradient hardness, many controls using to workpiece temperature have been done (i.e. using intermediate frequency sense by the research department such as colleges and universities
Answer temper) method realizes the experiment of gradient hardness to realize when cutter ring gradient hardness and vacuum air-quenching.
Processing to hobboing cutter cutter ring gradient hardness, existing process one kind is：Using control tempering temperature after cutter ring vacuum oil quenching
Degree, i.e., to cutter ring end and blade by the way of different temperatures is tempered；It is another to be：Vacuum hardening is used when using air quenching
Asbestos board is thermally shielded to end, so as to reduce the cooling velocity of end to reach gradient hardness.Meet production to work out
The cutter ring Technology for Heating Processing of hardness gradient is realized during the vacuum oil quenching of reality, research and discussion repeatedly has been carried out to above-mentioned technique,
It was found that this technique is only applicable in single-piece experiment, actual production process not only because technique, frock are complicated, and the gradient point of temperature
Cloth is difficult that control is uniform, and factory's batch production can not use this technique.
Prior art has the following disadvantages：
1st, hobboing cutter cutter ring gradient hardness is realized using tempering, it is necessary to being controlled on the different parts of hobboing cutter cutter ring radial direction
The temperature of gradient distribution, i.e. end require that high temperature, blade require low temperature, and to complete this technique needs to set special heating
Source and cooling device, not only frock is complicated but also cumbersome.
2nd, to cutter ring blade and end, it is difficult to gradient temperature accurately be controlled, so as to not reach preferable gradient stiffening effect.
3rd, the material such as asbestos board during vacuum air-quenching, the different cooling velocity of control workpiece diverse location is so as to realize gradient
Hardness, but the limited strength of asbestos board, it is impossible to which more than one piece combines quenching simultaneously, so single-piece production is suitable only for, low production efficiency,
It is not suitable for the batch production of enterprise.
4th, cutter ring vacuum hardening generally uses oil quenching, carries out vacuum oil quenching using the scheme in 3, asbestos board enters quenching
Oil can soften quickly, it is impossible to ensure technological requirement, so can not use this technique during oil quenching.
The content of the invention
It is an object of the invention to propose a kind of gradient hardness heat treatment method of complete-section tunnel boring machine hobboing cutter cutter ring,
Solve the complex process of prior art presence, quality is unstable, be only suitable for being tested or single-piece production in laboratory, be not suitable for
The problem of batch production, low production efficiency.
To achieve the above object, the gradient hardness heat treatment method bag of complete-section tunnel boring machine hobboing cutter cutter ring of the invention
Include following steps：
Step one：Process one upper cover plate of structure identical and a lower cover with 2520 heat-resisting white steel plates, it is described on
The diameter of cover plate and lower cover is more than hobboing cutter cutter ring end diameter；
Step 2：Respectively annular groove is processed on a face of upper cover plate and lower cover；
Step 3：A sleeve is processed with 2520 heat-resisting white steel pipes, the height of the sleeve is multiple rollings after combination
The height of knife cutter ring, the external diameter of the sleeve is less than hobboing cutter cutter ring internal diameter；
Step 4：By sleeve weld in the annular groove of lower cover；
Step 5：Carbon felt pad will be put into lower cover annular groove, sleeve outer surface is coated into carbon felt；
Step 6：The hobboing cutter cutter ring of multiple same specifications is sequentially sleeved on the outside of sleeve, the hobboing cutter cutter ring inner surface and carbon
Felt contact outside, the carbon felt pad contact in the end and lower cover annular groove of the hobboing cutter cutter ring of lower cover；
Step 7：Upper cover plate is installed, upper cover plate is fixed on the sleeve by multiple fastening bolts, the upper cover plate
Annular groove in be provided with carbon felt pad, the carbon felt in the end of hobboing cutter cutter ring and the annular groove of upper cover plate of the top
Pad contact, obtains multiple hobboing cutter cutter rings combination of composition one；
Step 8, vacuum hardening processing is carried out by the hobboing cutter cutter ring obtained in step 7 combination；
Step 9：Hobboing cutter cutter ring combination to quenched processing carries out 2-3 temper, cutter ring hardness is reached technique
It is required that, complete heat treatment.
Vacuum hardening described in step 8, which is handled, is specially：The hobboing cutter cutter ring assembly obtained in step 7 in vacuum
Heated in stove, insulation enters oil hardening after terminating, and hobboing cutter cutter ring blade is directly contacted with quenching oil, accelerate its cooling speed
Degree；End, so as to control its cooling velocity, makes end region temperature slowly reduce because can not directly be contacted with quenching oil.
The diameter of the upper cover plate and lower cover is more than hobboing cutter cutter ring end diameter 20mm.
Annular groove depth on the upper cover plate and lower cover is 7mm, and the thickness of the upper cover plate and lower cover is 25mm.
The external diameter of the sleeve is less than hobboing cutter cutter ring internal diameter 20mm, and the wall thickness of the sleeve is 20mm.
Size big 3-6mm of the size of carbon felt pad described in step 5 than hobboing cutter cutter ring inner end diameter.
Size big 5mm of the size of carbon felt pad described in step 5 than hobboing cutter cutter ring inner end diameter.
The thickness of the carbon felt of the sleeve outer surface cladding is 10mm.
The hobboing cutter cutter ring of multiple same specifications is coaxially disposed, and two adjacent hobboing cutter cutter ring ends are brought into tight contact with each other.
The upper cover plate, lower cover and sleeve are coaxially disposed.
Beneficial effects of the present invention are：The present invention is coaxially disposed due to upper cover plate, lower cover and sleeve, and multiple same specifications
Hobboing cutter cutter ring be coaxially disposed, two adjacent hobboing cutter cutter ring ends are brought into tight contact with each other, so entering oil quenching after insulation terminates
Hobboing cutter cutter ring blade can directly be contacted with quenching oil when fiery, accelerate its cooling velocity；Made using high temperature resistant, heat-insulated carbon felt pad
End and inner surface are not contacted directly with the quenching oil of flowing, and end with quenching oil because can not directly contact, so as to control its cold
But speed, makes end region temperature slowly reduce, so as to ensure that the gradient hardness of cutter ring.
The gradient hardness heat treatment method of the complete-section tunnel boring machine hobboing cutter cutter ring of the present invention carries out heat to hobboing cutter cutter ring
After processing, the end hardness 7--8HRC lower than blade hardness of cutter ring reaches hobboing cutter cutter ring in the radial direction, from inside to outside hardness
In gradient Spreading requirements from low to high, that is, it ensure that blade high rigidity, high-wearing feature can improve toughness and the punching of end again
Hit work(, blade microfissure is when internally (end) extends such cutter ring in use, and the higher toughness in end can have
Effect ground stops the extension of crackle, so as to be effectively reduced the overall fracture tendency of hobboing cutter cutter ring.In addition, the reduction of end hardness is also
The installation of hobboing cutter cutter ring and cutter hub is conducive to coordinate.
The advantage of this patent is：1st, cutter ring hardness gradient problem is reached by improving quenching technical, frock, it is not necessary to
Increase equipment, only need to put into a small amount of frock；2nd, this patent changes the tissue of end and blade by quenching, makes end and sword
Portion has obtained different quenching structures；3rd, different tissues have been obtained by quenching end and blade, so it need not be increased
He is tempered facility and the technique for being distributed temperature using gradient；4th, the technique before improving can only once handle a cutter ring, adopt
This patent technique is used, can simultaneously be quenched and be tempered simultaneously with more than one piece, improve production efficiency；5th, using high temperature resistant, heat-insulated carbon
Felt makes end and inner surface not contacted directly with the quenching oil of flowing, greatly reduces the cooling velocity at this position.6th, this patent
Stable in quenching quality, the effect of gradient hardness substantially, improves the service life of cutter ring.
Brief description of the drawings
Fig. 1 is the gradient hardness heat treatment method flow chart of the complete-section tunnel boring machine hobboing cutter cutter ring of the present invention；
Fig. 2 is hobboing cutter cutter ring group in the gradient hardness heat treatment method of the complete-section tunnel boring machine hobboing cutter cutter ring of the present invention
Close structural representation；
Fig. 3 is single rolling after the gradient hardness heat treatment method processing of the complete-section tunnel boring machine hobboing cutter cutter ring of the present invention
Knife cutter ring end view drawing；
Wherein：1st, upper cover plate, 2, fastening bolt, 3, carbon felt, 4, sleeve, 5, hobboing cutter cutter ring, 6, carbon felt pad, 7, lower cover,
8th, end, 9, blade.
Embodiment
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
Referring to accompanying drawing 1 and accompanying drawing 2, the gradient hardness heat treatment method of complete-section tunnel boring machine hobboing cutter cutter ring of the invention
Comprise the following steps：
Step one：One upper cover plate 1 of structure identical and a lower cover 7 are processed with 2520 heat-resisting white steel plates, it is described
The diameter of upper cover plate 1 and lower cover 7 is more than the diameter of 5 end of hobboing cutter cutter ring 8；
Step 2：Respectively annular groove is processed on a face of upper cover plate 1 and lower cover 7；
Step 3：A sleeve 4 is processed with 2520 heat-resisting white steel pipes, the height of the sleeve 4 is multiple after combination
The height of hobboing cutter cutter ring 5, the external diameter of the sleeve 4 is less than the internal diameter of hobboing cutter cutter ring 5；
Step 4：In the annular groove that sleeve 4 is welded on to lower cover 7；
Step 5：Carbon felt pad 6 will be put into the annular groove of lower cover 7, the outer surface of sleeve 4 is coated into carbon felt 3；
Step 6：The hobboing cutter cutter ring 5 of multiple same specifications is sequentially sleeved in the outside of sleeve 4, the inner surface of hobboing cutter cutter ring 5 and
The contact outside of carbon felt 3, the carbon felt pad 6 in the end 8 and the annular groove of lower cover 7 of the hobboing cutter cutter ring 5 of lower cover 7 is contacted；
Step 7：Install upper cover plate 1, upper cover plate 1 is fixed on the sleeve 4 by multiple fastening bolts 2, it is described on
Carbon felt pad 6 is provided with the annular groove of cover plate 1, positioned at the end 8 of the hobboing cutter cutter ring 5 of the top and the annular of upper cover plate 1
Carbon felt pad 6 in groove is contacted, and the multiple hobboing cutter cutter rings 5 for obtaining composition one are combined；
Step 8, progress vacuum hardening processing is combined by the hobboing cutter cutter ring 5 obtained in step 7；
Step 9：The combination of hobboing cutter cutter ring 5 to quenched processing carries out 2-3 temper, cutter ring hardness is reached work
Skill requirement, completes heat treatment.
Vacuum hardening described in step 8, which is handled, is specially：The assembly of hobboing cutter cutter ring 5 obtained in step 7 true
Heated in empty stove, insulation enters oil hardening after terminating, the blade 9 of hobboing cutter cutter ring 5 is directly contacted with quenching oil；End 8 avoids and quenched
Oil is directly contacted.Heating-up temperature wherein in a vacuum furnace is 1050-1070 DEG C, and soaking time is 1.5-2 hours.
The diameter of the upper cover plate 1 and lower cover 7 is more than the diameter 20mm of 5 end of hobboing cutter cutter ring 8.
Annular groove depth on the upper cover plate 1 and lower cover 7 is 7mm, and the thickness of the upper cover plate 1 and lower cover 7 is
25mm。
The external diameter of the sleeve 4 is less than the internal diameter 20mm of hobboing cutter cutter ring 5, and the wall thickness of the sleeve 4 is 20mm.
Size big 3-6mm of the size of carbon felt pad 6 described in step 5 than the internal diameter of 5 end of hobboing cutter cutter ring 8.
Size big 5mm of the size of carbon felt pad 6 described in step 5 than the internal diameter of 5 end of hobboing cutter cutter ring 8.
The thickness of the carbon felt 3 of the outer surface of sleeve 4 cladding is 10mm.
The hobboing cutter cutter ring 5 of multiple same specifications is coaxially disposed, and the adjacent end 8 of two hobboing cutter cutter rings 5 is brought into tight contact with each other.
The upper cover plate 1, lower cover 7 and sleeve 4 are coaxially disposed.
Referring to the end 8 of 3 hobboing cutter cutter ring of accompanying drawing 5 and the structural representation of blade 9.
Tables 1 and 2 is the end 8 of hobboing cutter cutter ring 5 and the hardness result of blade 9 before and after improving.
Before table 1 is improved
After table 2 is improved
The hardness of rearward end 8 is improved than reducing by 7-8HRC before improving.
Claims (1)
1. the gradient hardness heat treatment method of complete-section tunnel boring machine hobboing cutter cutter ring, it is characterised in that comprise the following steps：
Step one：One upper cover plate (1) of structure identical and a lower cover (7) are processed with 2520 heat-resisting white steel plates, it is described
The diameter of upper cover plate (1) and lower cover (7) is more than the diameter of hobboing cutter cutter ring (5) end (8)；
Step 2：Respectively annular groove is processed on a face of upper cover plate (1) and lower cover (7)；
Step 3：A sleeve (4) is processed with 2520 heat-resisting white steel pipes, the height of the sleeve (4) is multiple after combination
The height of hobboing cutter cutter ring (5), the external diameter of the sleeve (4) is less than hobboing cutter cutter ring (5) internal diameter；
Step 4：Sleeve (4) is welded in the annular groove of lower cover (7)；
Step 5：Carbon felt pad (6) will be put into lower cover (7) annular groove, sleeve (4) outer surface is coated into carbon felt (3)；
Step 6：The hobboing cutter cutter ring (5) of multiple same specifications is sequentially sleeved on the outside of sleeve (4), hobboing cutter cutter ring (5) inner surface
With carbon felt (3) contact outside, close to lower cover (7) hobboing cutter cutter ring (5) end (8) and lower cover (7) annular groove in
Carbon felt pad (6) is contacted；
Step 7：Upper cover plate (1) is installed, upper cover plate (1) is fixed on the sleeve (4) by multiple fastening bolts (2), institute
Carbon felt pad (6) is provided with the annular groove for stating upper cover plate (1), positioned at the end (8) of the hobboing cutter cutter ring (5) of the top and upper lid
Carbon felt pad (6) contact in the annular groove of plate (1), obtains multiple hobboing cutter cutter rings (5) combination of composition one, hobboing cutter cutter ring
(5) in combining, two neighboring hobboing cutter cutter ring (5) is in close contact；
Step 8：The hobboing cutter cutter ring (5) obtained in step 7 combination is subjected to vacuum hardening processing, is specially：In step 7
Multiple same specifications, hobboing cutter cutter ring (5) assembly that is coaxially disposed obtained heat in a vacuum furnace, be incubated terminate after enter oil quenching
Fire, makes hobboing cutter cutter ring (5) blade (9) directly be contacted with quenching oil；Two adjacent hobboing cutter cutter ring (5) ends (8) are close mutually
Contact, it is to avoid and quenching oil is directly contacted, wherein, heating-up temperature in a vacuum furnace is 1050-1070 DEG C, and soaking time is
1.5-2 hour；
Step 9：Hobboing cutter cutter ring (5) combination to quenched processing carries out 2-3 temper, cutter ring hardness is reached technique
It is required that, complete heat treatment, the end hardness 7-8HRC lower than blade hardness of cutter ring；
The diameter of the upper cover plate (1) and lower cover (7) is more than hobboing cutter cutter ring (5) end (8) diameter 20mm；
Annular groove depth on the upper cover plate (1) and lower cover (7) is 7mm, the upper cover plate (1) and lower cover (7) thickness
Spend for 25mm；
The external diameter of the sleeve (4) is less than hobboing cutter cutter ring (5) internal diameter 20mm, and the wall thickness of the sleeve (4) is 20mm；
Size big 5mm of the size of carbon felt pad (6) described in step 5 than hobboing cutter cutter ring (5) end (8) internal diameter；
The thickness of the carbon felt (3) of sleeve (4) the outer surface cladding is 10mm；
The upper cover plate (1), lower cover (7) and sleeve (4) are coaxially disposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610956327.5A CN106498144B (en) | 2016-10-27 | 2016-10-27 | The gradient hardness heat treatment method of complete-section tunnel boring machine hobboing cutter cutter ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610956327.5A CN106498144B (en) | 2016-10-27 | 2016-10-27 | The gradient hardness heat treatment method of complete-section tunnel boring machine hobboing cutter cutter ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106498144A CN106498144A (en) | 2017-03-15 |
| CN106498144B true CN106498144B (en) | 2017-08-25 |
Family
ID=58321400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610956327.5A Active CN106498144B (en) | 2016-10-27 | 2016-10-27 | The gradient hardness heat treatment method of complete-section tunnel boring machine hobboing cutter cutter ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106498144B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106957949B (en) * | 2017-05-11 | 2019-03-08 | 中铁工程装备集团有限公司 | A kind of hobboing cutter cutter ring heat treatment tooling |
| CN107664037B (en) * | 2017-09-29 | 2020-02-18 | 镇江市京口区理工热处理科技站 | Hard elastic cutter ring for hard rock tunneling of shield tunneling machine and heat treatment method thereof |
| CN110231238B (en) * | 2019-05-30 | 2020-04-24 | 吉林省维尔特隧道装备有限公司 | Gradient hardness detection device and method for section of hob ring of heading machine |
| CN110373521A (en) * | 2019-07-15 | 2019-10-25 | 中铁工程装备集团隧道设备制造有限公司 | TBM hob cutter ring complex phase strenthen-toughening mechanizm technique |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2281987Y (en) * | 1996-09-26 | 1998-05-20 | 董玉顺 | High sealed heating room for vacuum quenching furnace |
| JP2002333278A (en) * | 2001-05-14 | 2002-11-22 | Allied Material Corp | High-temperature furnace |
| CN102417964A (en) * | 2011-11-25 | 2012-04-18 | 南昌大学 | Device used for quenching shield machine hobbing cutter ring |
| CN203081457U (en) * | 2012-12-13 | 2013-07-24 | 天津城建隧道股份有限公司 | Shield machine disc cutter convenient to replace |
| JP2016150348A (en) * | 2015-02-16 | 2016-08-22 | 杉浦工業株式会社 | Metal mold manufacturing method and regeneration processing method |
| CN105443137A (en) * | 2015-12-23 | 2016-03-30 | 洛阳九久科技股份有限公司 | Integral type cutter ring for disc cutter and manufacturing method thereof |
-
2016
- 2016-10-27 CN CN201610956327.5A patent/CN106498144B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106498144A (en) | 2017-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106498144B (en) | The gradient hardness heat treatment method of complete-section tunnel boring machine hobboing cutter cutter ring | |
| CN104232875B (en) | A kind of Technology for Heating Processing of shield machine 3m bearing ring | |
| CN107138660B (en) | A kind of high-carbon-chromium bearing steel warm-rolling loop forming method for realizing tissue nodularization | |
| CN105483353B (en) | The differential temperature heat treatment method of high carbon high speed steel roll | |
| CN101956055A (en) | Heat treatment method of large-diameter thick-walled heat-resistant steel pipe | |
| CN104532140B (en) | A kind of large scale shield machine is steel and heat treatment method thereof for bearing ring | |
| CN104328249B (en) | A kind of heat treatment method of the full hollow half axle of automobile | |
| CN102796965A (en) | Rolling mill support roll steel and heat treatment technology thereof | |
| CN106011665B (en) | A kind of large-scale aluminium hot-rolling mill precision rolling working roll and its induction hardening method | |
| CN104328267A (en) | Heat treatment process of large-diameter stainless steel bearing ring | |
| CN106868267A (en) | A kind of D2Steel roll double frequency heat treatment quenching process and device | |
| CN104357621A (en) | Process method for grain refinement by induction quenching | |
| CN203635845U (en) | Forged cold-controlling device for non-quenched and tempered steel forge pieces | |
| CN102126007B (en) | Method for manufacturing compound blade of agricultural harvester | |
| CN104525568A (en) | Machining method of carburized bearing steel seamless steel tube | |
| CN106119511B (en) | 9Cr2Mo smoothing roll heat treatment methods based on exhaust quenching technical | |
| CN105779704A (en) | Heat treatment process for 45 steel crankshaft | |
| CN104032115A (en) | Thermal treatment method for reducing secondary gear ring nitrogenized deformation | |
| CN106939403B (en) | The method of 1Cr9Mo1VNbN material nozzle of steam turbine boronising | |
| CN104227363A (en) | Turning tool production steps favorable for martensite formation during heat treatment | |
| CN107937862A (en) | A kind of carburization process for chain production | |
| CN107619912A (en) | Residual temperature normalizing process | |
| CN107794364A (en) | A kind of metal material toughening processing method | |
| CN104451095B (en) | A kind of heat treatment method of the expanding cone of 7CrSiMnMoV | |
| CN107675123A (en) | A kind of high-speed steel carburizing quenching process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 023, Chongqing Street, Yongji Economic Development Zone, Jilin City, Jilin Province, 132000 Patentee after: Lingyuan Technology Co.,Ltd. Address before: No.023, Chongqing Street, Yongji Economic Development Zone, Jilin City, Jilin Province Patentee before: JILIN WEIERTE TUNNEL EQUIPMENT CO.,LTD. |
|
| CP03 | Change of name, title or address |