CN107842369A - A kind of Hob cutter ring of shield machine and its manufacture method with built-up welding cobalt-base alloys - Google Patents
A kind of Hob cutter ring of shield machine and its manufacture method with built-up welding cobalt-base alloys Download PDFInfo
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- CN107842369A CN107842369A CN201711308797.1A CN201711308797A CN107842369A CN 107842369 A CN107842369 A CN 107842369A CN 201711308797 A CN201711308797 A CN 201711308797A CN 107842369 A CN107842369 A CN 107842369A
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 86
- 239000000956 alloy Substances 0.000 title claims abstract description 86
- 238000003466 welding Methods 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 239000011159 matrix material Substances 0.000 claims abstract description 52
- 229910000851 Alloy steel Inorganic materials 0.000 claims abstract description 29
- 239000000203 mixture Substances 0.000 claims abstract description 25
- 238000005520 cutting process Methods 0.000 claims abstract description 20
- 239000012535 impurity Substances 0.000 claims abstract description 17
- 238000005496 tempering Methods 0.000 claims abstract description 12
- 238000003754 machining Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 9
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 9
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 9
- 238000010791 quenching Methods 0.000 claims abstract description 9
- 230000000171 quenching effect Effects 0.000 claims abstract description 9
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 7
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 230000007704 transition Effects 0.000 claims description 9
- 238000007493 shaping process Methods 0.000 claims description 8
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 238000010891 electric arc Methods 0.000 claims description 3
- QFXZANXYUCUTQH-UHFFFAOYSA-N ethynol Chemical group OC#C QFXZANXYUCUTQH-UHFFFAOYSA-N 0.000 claims description 3
- 229910000963 austenitic stainless steel Inorganic materials 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- 238000010923 batch production Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 description 15
- 238000005253 cladding Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000013467 fragmentation Methods 0.000 description 3
- 238000006062 fragmentation reaction Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 241001562042 Physa Species 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/07—Alloys based on nickel or cobalt based on cobalt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a kind of Hob cutter ring of shield machine with built-up welding cobalt-base alloys, including cutter ring matrix (1) made of steel alloy, on the outer rim cutting edge of matrix (1), circumferentially it has been uniformly distributed the groove that multiple thickness directions run through, built-up welding filling cobalt-base alloys (2), the composition (percentage by weight) of the cobalt-base alloys (2) are in groove：1.0 3.5%C, 25.0 35.0%Cr, 7.5 19.0%W ,≤2.0%Mn ,≤2.0%Si ,≤2.0%Mo ,≤3.5%Ni ,≤5.0%Fe, remaining is Co and impurity element.The manufacture method of cutter ring is：1) cutter ring matrix (1) is made in machining, and groove is uniformly provided with outer rim cutting edge, and routinely technique carries out final quenching+tempering heat treatment to cutter ring matrix (1)；2) cutter ring matrix (1) is preheated to >=350 DEG C, the temper of built-up welding filling cobalt-base alloys (2) postheating or progress tempering temperature >=350 DEG C in the groove；3) finished product is made in machining finishing.The Hob cutter ring of shield machine can significantly improve service life, and manufacturing process is simple, easily realize batch production.
Description
Technical field
The present invention relates to shield machine technical field, more particularly to a kind of Hob cutter ring of shield machine with built-up welding cobalt-base alloys and
Its manufacture method.
Background technology
Full face rock tunnel boring machine (Full Face Rock Tunnel Boring Machine, abbreviation TBM) is also known as shield
Structure machine, it integrates the driving of constructing tunnel, supporting, the functions such as transport, dust removal by ventilation of slagging tap, compared with traditional drilling and blasting method,
Have the characteristics that quick, high-quality, safe.Hobboing cutter cutter ring on cutter head of shield machine, it is the crucial portion to be constructed in a whole set of heading equipment
Part and easily worn part.In work progress, the condition of work of hobboing cutter is extremely severe, and consumption is very big, and frequently tool changing is seriously
It has impact on construction speed.Number of changing knife is shut down to reduce, reduces cutter ring loss, develops the hobboing cutter cutter ring of higher performance to closing weight
Will.
Current hobboing cutter cutter ring typically uses Integral alloy steel making, and hobboing cutter cutter ring is mainly with U.S. Robbins in the world
It is representative with German Wirth.R-obbins uses AISl4340 steel, and composition is close with domestic 40CrNiMo steel, has compared with high-ductility
Property.Wirth uses the grades of steel of X50CrVMo5-1 in German material DINl7350, is the representative of high rigidity cutter ring.Country's construction
During the hobboing cutter cutter ring that needs largely meet by import.It is domestic frequently with H13,4Cr5MoSiV1,40CrNiMo,
The alloy steel making hobboing cutter cutter ring such as 5Cr5MoSiV, 9Cr2Mo.In recent years, it is overall by optimizing components, heat treatment technology improvement
The wearability of hobboing cutter cutter ring has improvement, but it still wears comparatively fast in use, and wearability needs further to be improved.
The patent document of Chinese Patent Application No. 201620734964.3 discloses the cutter ring that hobboing cutter is used on a kind of shield machine,
The utility model includes cutter ring body, and some radial holes along cutter ring body external diameter direction, institute are provided with the cutter ring body
The one end for stating radial hole is provided with regulating block, and the other end of the radial hole is provided with retainer ring, is provided with the radial hole
Alloy block, one end of the alloy block are slidably connected on regulating block, and the other end of the alloy chopsticks protrudes from through retainer ring
Cutter ring outer body surface, the life-span of hobboing cutter can be increased.But cutter ring disclosed in the utility model, radial hole need to be beaten, in order to ensure
Cutter ring intensity radial hole is unsuitable overstocked so that increased alloy block negligible amounts, the effect for improving wearability are also limited.Alloy block
With the non-metallurgical binding of radial hole, the risk for have fragmentation in use, dropping, and disclosed cutter ring is complicated, manufacturing cost is high,
It is not suitable for mass production promotion.
Chinese Patent Application No. 201620936968.X patent document discloses a kind of shield machine hob ring, hobboing cutter circle body
Excircle on be provided with annular groove, be provided with through hole in a side wall of the annular groove, set in another side wall
There is corresponding blind hole；Hard alloy blocks are inlaid with the annular groove, are provided with the hard alloy blocks and through hole phase
Corresponding mounting hole；Connecting bolt is provided with the through hole, the connecting bolt is inserted in blind hole through through hole and mounting hole；
The fast assembling-disassembling of hard alloy blocks can be realized using the utility model, the efficiency of shield machine cutter replacing can be effectively improved.
This on new outer lane cutting edge using hard alloy blocks are continuously inlaid with, and hardness is higher, but shock resistance is poor, alloy block and inserting slot
Between non-metallurgical binding, the risk that alloy block also has fragmentation in use, dropped, and disclosed cutter ring is complicated, is manufactured into
This height, also it is not suitable for mass production promotion.
If consideration is whole on hobboing cutter cutter ring cutting edge to enclose pile-up welding hard alloy to improve wearability, it is solderable to there is hard alloy
Property poor, welding process in easily crack, during use easily cracking, spallation problems.
The content of the invention
In order to improve the service life of existing Integral alloy steel hobboing cutter cutter ring, existing band wear-resisting alloy block hobboing cutter cutter ring is overcome
Improve service life effect is limited, the risk that has fragmentation in use, drop, complicated, the shortcomings that manufacturing cost is high.This
Invention provides a kind of Hob cutter ring of shield machine and its manufacture method with built-up welding cobalt-base alloys, can significantly improve hobboing cutter cutter ring
Service life, built-up welding cobalt-base alloys will not fall off in use, and manufacturing process is simple, easily realize batch production.
In order to realize above-mentioned target, the present invention adopts the following technical scheme that：
The invention provides a kind of Hob cutter ring of shield machine with built-up welding cobalt-base alloys, including cutter ring base made of steel alloy
Body, on the outer rim cutting edge of the cutter ring matrix, be circumferentially uniformly distributed the groove that multiple thickness directions run through, in groove built-up welding fill out
Cobalt-base alloys is filled, the composition (percentage by weight) of the cobalt-base alloys is：1.0-3.5%C, 25.0-35.0%Cr, 7.5-
19.0%W ,≤2.0%Mn ,≤2.0%Si ,≤2.0%Mo ,≤3.5%Ni ,≤5.0%Fe, remaining is Co and impurity element.
Preferably the composition (percentage by weight) of the built-up welding filling cobalt-base alloys is：1.85-3.2%C, 26.0-
32.5%Cr, 10.5-18.0%W ,≤2.0%Mn ,≤2.0%Si ,≤2.0%Mo ,≤3.5%Ni ,≤5.0%Fe, remaining
For Co and impurity element.
Preferably the alloy composition (percentage by weight) of the cutter ring matrix is：0.30-0.50%C, 0.15-0.50%
Si, 0.50-1.0%Mn, 0.50-1.10%Cr, 1.0-2.0%Ni, 0.1-0.5%Mo, remaining is Fe and impurity element.
The alloy composition (percentage by weight) of the another a kind preferable cutter ring matrix is：0.32-0.45%C, 0.80-
1.25%Si, 0.20-0.60%Mn, 4.75-5.50%Cr, 0.80-1.20%V, 1.10-1.75%Mo ,≤0.030%P ,≤
0.030%S remaining be Fe and impurity element.
Cobalt-base alloys has the characteristics of high rigidity, high-wearing feature, can increase the service life of hobboing cutter cutter ring.
Alloy steel matrix intensity itself is high and has certain wearability, is provided for cobalt-base alloys overlay cladding good
Substrate support.Because cobalt-base alloys is inlaid solid on alloy steel matrix by metallurgical binding, so its cracking resistance in use, anti-stripping
It is fine to fall performance.
, can be in above-mentioned groove during built-up welding filling cobalt-base alloys in order to further improve the service life of cutter ring, built-up welding floor height
Physa face out, after being processed into finished product, the built-up welding filling cobalt-base alloys protrusion outer rim basal plane 3-14mm.Protrusion is less than 3mm then
Increase the DeGrain of wearability；Higher than 14mm, then projection easily breaks, peeled off protrusion when in use, and can increase valuable
Cobalt-base alloys consumption.
The invention provides a kind of above-mentioned manufacture method of the Hob cutter ring of shield machine with built-up welding cobalt-base alloys, mainly include
Following steps：
(1) steel alloy cutter ring matrix is made in machining first, and circumferentially equally distributed multiple thickness are provided with outer rim cutting edge
The groove that degree direction is run through, routinely technique is to the final quenching+tempering heat treatment of cutter ring matrix progress；
(2) built-up welding：By cutter ring substrate preheating to >=350 DEG C；In the groove built-up welding fill cobalt-base alloys, postheating or
Carry out the temper of tempering temperature >=350 DEG C；
(3) finishing shaping is machined out to the cutter ring of heap postwelding, finished product is made.
Steel alloy cutter ring matrix step further is made in the machining, for the outer rim sword in the cutter ring matrix
On mouth, the groove that circumferentially equally distributed multiple thickness directions run through, suitable groove depth be 5-25mm, suitable circumferential groove width
For 5-50mm.
Further in the built-up welding step, to prevent the dilution of weld overlay alloy element, prevention weld crack and increase
Overlay cladding and the plasticity and toughness of matrix junction, the bottoming on the rooved face of austenitic stainless steel welding material can be first used to cover heap
Weld the thick transition zones of 1-3mm, then the built-up welding cobalt-base alloys on transition zone.
The overlaying method that the built-up welding step preferably uses is manual electric arc welding or argon arc weld deposit or oxyacetylene welding.
The invention provides a kind of Hob cutter ring of shield machine and its manufacture method with built-up welding cobalt-base alloys.The shield machine rolls
Knife cutter ring has excellent wearability, impact resistance, antistrip performance, can significantly improve the service life of cutter ring, so as to favourable
In reduction construction cost, improve efficiency of construction.And manufacturing process is simple, batch production is easily realized.
Brief description of the drawings
The embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings, wherein：
Fig. 1 is the present invention the 1st, 2,3, the schematic cross-section of the parallel card of 4 kind of embodiment cutter ring；
Fig. 2 is A-A dissection surface schematic diagrames in Fig. 1；
Fig. 3 is the schematic cross-section of the parallel card of fifth embodiment of the present invention cutter ring；
Fig. 4 is the schematic cross-section of the local parallel card of sixth embodiment of the present invention cutter ring groove location.
Reference：1st, cutter ring matrix, 2, the cobalt-base alloys of built-up welding, 3, built-up welding transition zone.
Embodiment
Further illustrate technical scheme with reference to embodiments.
The chemical composition of the embodiment cutter ring matrix of table 1 and comparative example cutter ring
The chemical composition of the embodiment cobalt-base alloys overlay cladding of table 2
Embodiment 1
The Hob cutter ring of shield machine with built-up welding cobalt-base alloys of Φ 432mm specifications, including cutter ring matrix made of steel alloy
(1), on the outer rim cutting edge of the cutter ring matrix, it is provided with the groove that circumferentially equally distributed 32 thickness directions run through.Groove portion
Position built-up welding filling cobalt-base alloys (2), referring to Fig. 1, Fig. 2.The chemical composition of steel alloy cutter ring base material is shown in Table 1, and (remaining is Fe and miscellaneous
Prime element).The chemical composition of cutter ring cobalt-base alloys overlay cladding is shown in Table 2 (remaining is Co and impurity element).
The manufacturing process of embodiment 1 is：
1) steel alloy cutter ring matrix (1) is made in machining first, and circumferentially equally distributed 32 are provided with outer rim cutting edge
Thickness direction runs through groove, groove depth 14-16mm, circumferential groove width 20-22mm.Routinely technique to cutter ring matrix carry out finally quenching+
Tempering heat treatment；
2) built-up welding：Cutter ring matrix (1) is preheated to 400-450 DEG C；The method of arc welding built-up welding in the groove by hand
Cobalt-base alloys (2) is filled, postwelding is put into furnace cooling in 400-450 DEG C of stove.
3) finishing shaping is machined out to the cutter ring of heap postwelding, finished product is made.
Embodiment 2
The Hob cutter ring of shield machine with built-up welding cobalt-base alloys of Φ 432mm specifications, including cutter ring matrix made of steel alloy
(1), on the outer rim cutting edge of the cutter ring matrix, it is provided with the groove that circumferentially equally distributed 32 thickness directions run through.Groove portion
Position built-up welding filling cobalt-base alloys (2), referring to Fig. 1, Fig. 2.The chemical composition of steel alloy cutter ring base material is shown in Table 1, and (remaining is Fe and miscellaneous
Prime element).The chemical composition of cutter ring cobalt-base alloys overlay cladding is shown in Table 2 (remaining is Co and impurity element).
The manufacturing process of embodiment 2 is：
1) steel alloy cutter ring matrix (1) is made in machining first, and circumferentially equally distributed 32 are provided with outer rim cutting edge
Thickness direction runs through groove, groove depth 14-16mm, circumferential groove width 20-22mm.Routinely technique to cutter ring matrix carry out finally quenching+
Tempering heat treatment；
2) built-up welding：Cutter ring matrix (1) is preheated to 400-450 DEG C；With the method for argon arc weld deposit, built-up welding is filled out in the groove
Cobalt-base alloys (2) is filled, postwelding is put into furnace cooling in 400-450 DEG C of stove.
3) finishing shaping is machined out to the cutter ring of heap postwelding, finished product is made.
Embodiment 3
The Hob cutter ring of shield machine with built-up welding cobalt-base alloys of Φ 432mm specifications, including cutter ring matrix made of steel alloy
(1), on the outer rim cutting edge of the cutter ring matrix, it is provided with the groove that circumferentially equally distributed 32 thickness directions run through.Groove portion
Position built-up welding filling cobalt-base alloys (2), referring to Fig. 1, Fig. 2.The chemical composition of steel alloy cutter ring base material is shown in Table 1, and (remaining is Fe and miscellaneous
Prime element).The chemical composition of cutter ring cobalt-base alloys overlay cladding is shown in Table 2 (remaining is Co and impurity element).
The manufacturing process of embodiment 3 is：
1) steel alloy cutter ring matrix (1) is made in machining first, and circumferentially equally distributed 32 are provided with outer rim cutting edge
Thickness direction runs through groove, groove depth 14-16mm, circumferential groove width 20-22mm.Routinely technique to cutter ring matrix carry out finally quenching+
Tempering heat treatment；
2) built-up welding：Cutter ring matrix (1) is preheated to 400-450 DEG C；With the method for argon arc weld deposit, built-up welding is filled out in the groove
Cobalt-base alloys (2) is filled, postwelding is put into furnace cooling in 400-450 DEG C of stove.
3) finishing shaping is machined out to the cutter ring of heap postwelding, finished product is made.
Embodiment 4
The Hob cutter ring of shield machine with built-up welding cobalt-base alloys of Φ 432mm specifications, including cutter ring matrix made of steel alloy
(1), on the outer rim cutting edge of the cutter ring matrix, it is provided with the groove that circumferentially equally distributed 32 thickness directions run through.Groove portion
Position built-up welding filling cobalt-base alloys (2), referring to Fig. 1, Fig. 2.The chemical composition of steel alloy cutter ring base material is shown in Table 1, and (remaining is Fe and miscellaneous
Prime element).The chemical composition of cutter ring cobalt-base alloys overlay cladding is shown in Table 2 (remaining is Co and impurity element).
The manufacturing process of embodiment 4 is：
1) steel alloy cutter ring matrix (1) is made in machining first, and circumferentially equally distributed 32 are provided with outer rim cutting edge
Thickness direction runs through groove, groove depth 14-16mm, circumferential groove width 20-22mm.Routinely technique to cutter ring matrix carry out finally quenching+
Tempering heat treatment；
2) built-up welding：Cutter ring matrix (1) is preheated to 400-450 DEG C；With method built-up welding in the groove of oxyacetylene welding
Cobalt-base alloys (2) is filled, postwelding is put into furnace cooling in 400-450 DEG C of stove.
3) finishing shaping is machined out to the cutter ring of heap postwelding, finished product is made.
Embodiment 5
The Hob cutter ring of shield machine with built-up welding cobalt-base alloys of Φ 432mm specifications, including cutter ring matrix made of steel alloy
(1), on the outer rim cutting edge of the cutter ring matrix, it is provided with the groove that circumferentially equally distributed 32 thickness directions run through.Groove portion
Position built-up welding filling cobalt-base alloys (2), built-up welding filling cobalt-base alloys (2) the protrusion outer rim basal plane 10-12mm.Referring to Fig. 3.Alloy
The chemical composition of steel knife cycle basis material is shown in Table 1 (remaining is Fe and impurity element).The chemical composition of cutter ring cobalt-base alloys overlay cladding is shown in
Table 2 (remaining is Co and impurity element).
The manufacturing process of embodiment 5 is：
1) steel alloy cutter ring matrix (1) is made in machining first, and circumferentially equally distributed 32 are provided with outer rim cutting edge
Thickness direction runs through groove, groove depth 14-16mm, circumferential groove width 20-22mm.Routinely technique to cutter ring matrix carry out finally quenching+
Tempering heat treatment；
2) built-up welding：Cutter ring matrix (1) is preheated to 400-450 DEG C；With the method for argon arc weld deposit, built-up welding is filled out in the groove
Cobalt-base alloys (2) is filled, overlay cladding should be caused to be higher by outer rim basal plane, should ensure that cobalt-base alloys (2) is filled in built-up welding after finished product is made
Protrude outer rim basal plane 10-12mm.Referring to Fig. 3, postwelding is put into furnace cooling in 400-450 DEG C of stove.
3) finishing shaping is machined out to the cutter ring of heap postwelding, finished product is made.
Embodiment 6
The Hob cutter ring of shield machine with built-up welding cobalt-base alloys of Φ 432mm specifications, including cutter ring matrix made of steel alloy
(1), on the outer rim cutting edge of the cutter ring matrix, it is provided with the groove that circumferentially equally distributed 32 thickness directions run through.First exist
The thick transition zones (3) of 2mm or so are covered with A307 welding rod built-up welding on groove face, then cobalt-base alloys is filled in built-up welding on transition zone
(2), referring to Fig. 4.The chemical composition of steel alloy cutter ring base material is shown in Table 1 (remaining is Fe and impurity element).Cutter ring cobalt-base alloys heap
The chemical composition of layer is shown in Table 2 (remaining is Co and impurity element).
Embodiment, 6 manufacturing process are：
1) steel alloy cutter ring matrix (1) is made in machining first, and circumferentially equally distributed 32 are provided with outer rim cutting edge
Thickness direction runs through groove, groove depth 14-16mm, circumferential groove width 20-22mm.Routinely technique to cutter ring matrix carry out finally quenching+
Tempering heat treatment；
2) built-up welding：The first transition zone (3) that A307 welding rod manual electric arc pile up weldings 2mm or so thickness is used on the groove face, then
Built-up welding cobalt-base alloys (2) on transition zone, referring to Fig. 4.During built-up welding cobalt-base alloys, by cutter ring substrate preheating to 400-450 DEG C；Use hand
The method of work arc welding built-up welding filling cobalt-base alloys (2), postwelding in the groove are put into furnace cooling in 400-450 DEG C of stove.
3) finishing shaping is machined out to the cutter ring of heap postwelding, finished product is made.
Comparative example 1, the chemical composition of the Integral alloy steel knife circle of comparative example 2 are shown in Table 1 (remaining is Fe and impurity element).Specification
It is Φ 432mm, is manufactured by existing common process.
Table 3 is listed in the case where the execution conditions such as geological conditions are essentially identical, certain construction section embodiment cutter ring with it is right
The service condition of ratio cutter ring.Ratio in table 3, press with the data of comparative example 2 than calculating.
The service condition of the embodiment cutter ring of table 3 and comparative example cutter ring
Contrasted from table 3, the service life of embodiment 1-6 cutter rings significantly improves.
Described above is presently most preferred embodiment of the invention, is not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (9)
1. a kind of Hob cutter ring of shield machine with built-up welding cobalt-base alloys, including cutter ring matrix (1) made of steel alloy, its feature exist
In：On the outer rim cutting edge of the cutter ring matrix (1), the groove that multiple thickness directions run through circumferentially has been uniformly distributed, heap in groove
Weldering filling cobalt-base alloys (2), the composition (percentage by weight) of the cobalt-base alloys (2) are：1.0-3.5%C, 25.0-35.0%
Cr, 7.5-19.0%W ,≤2.0%Mn ,≤2.0%Si ,≤2.0%Mo ,≤3.5%Ni ,≤5.0%Fe, remaining is Co and miscellaneous
Prime element.
2. the Hob cutter ring of shield machine as claimed in claim 1 with built-up welding cobalt-base alloys, it is characterised in that：The built-up welding filling
The composition (percentage by weight) of cobalt-base alloys (2) is：1.85-3.2%C, 26.0-32.5%Cr, 10.5-18.0%W ,≤
2.0%Mn ,≤2.0%Si ,≤2.0%Mo ,≤3.5%Ni ,≤5.0%Fe, remaining is Co and impurity element.
A kind of 3. Hob cutter ring of shield machine with built-up welding cobalt-base alloys as claimed in claim 1, it is characterised in that：The cutter ring
The composition (percentage by weight) of matrix (1) is：0.30-0.50%C, 0.15-0.50%Si, 0.50-1.0%Mn, 0.50-
1.10%Cr, 1.0-2.0%Ni, 0.1-0.5%Mo, remaining is Fe and impurity element.
4. the Hob cutter ring of shield machine as claimed in claim 1 with built-up welding cobalt-base alloys, it is characterized in that being：The cutter ring base
The composition (percentage by weight) of body (1) is：0.32-0.45%C, 0.80-1.25%Si, 0.20-0.60%Mn, 4.75-
5.50%Cr, 0.80-1.20%V, 1.10-1.75%Mo ,≤0.030%P ,≤0.030%S remaining be Fe and impurity element.
A kind of 5. Hob cutter ring of shield machine with built-up welding cobalt-base alloys as claimed in claim 1, it is characterised in that：The built-up welding
Fill cobalt-base alloys (2) protrusion outer rim basal plane 3-14mm.
6. the manufacture method of the Hob cutter ring of shield machine with built-up welding cobalt-base alloys as described in claim 1-5 any one, its
It is characterised by：The manufacture method mainly includes the following steps that：
(1) steel alloy cutter ring matrix (1) is made in machining first, and circumferentially equally distributed multiple thickness are provided with outer rim cutting edge
The groove that direction is run through, routinely technique is to the final quenching+tempering heat treatment of cutter ring matrix (1) progress；
(2) built-up welding：Cutter ring matrix (1) is preheated to >=350 DEG C；Built-up welding filling cobalt-base alloys (2), postheating in the groove
Or carry out the temper of tempering temperature >=350 DEG C；
(3) finishing shaping is machined out to the cutter ring of heap postwelding, finished product is made.
7. the manufacture method of the Hob cutter ring of shield machine as claimed in claim 6 with built-up welding cobalt-base alloys, it is characterised in that：Institute
The depth for stating the circumferentially groove that equally distributed multiple thickness directions run through is 5-25mm, a width of 5-50mm of circumferential slot.
8. the manufacture method of the Hob cutter ring of shield machine as claimed in claim 6 with built-up welding cobalt-base alloys, it is characterised in that：
The built-up welding step, first with austenitic stainless steel welding material, bottoming covers the thick transition of built-up welding 1-3mm on the rooved face
Layer (3), then the built-up welding cobalt-base alloys (2) on transition zone (3).
9. the manufacture method of the Hob cutter ring of shield machine as claimed in claim 6 with built-up welding cobalt-base alloys, it is characterised in that：Institute
Overlaying method that built-up welding step uses is stated as manual electric arc welding or argon arc weld deposit or oxyacetylene welding.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711308797.1A CN107842369A (en) | 2017-12-11 | 2017-12-11 | A kind of Hob cutter ring of shield machine and its manufacture method with built-up welding cobalt-base alloys |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711308797.1A CN107842369A (en) | 2017-12-11 | 2017-12-11 | A kind of Hob cutter ring of shield machine and its manufacture method with built-up welding cobalt-base alloys |
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| CN107842369A true CN107842369A (en) | 2018-03-27 |
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| CN201711308797.1A Pending CN107842369A (en) | 2017-12-11 | 2017-12-11 | A kind of Hob cutter ring of shield machine and its manufacture method with built-up welding cobalt-base alloys |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110343965A (en) * | 2019-07-31 | 2019-10-18 | 广东华域重工有限公司 | A kind of high-intensity special-shaped steel and preparation method thereof |
| CN110802311A (en) * | 2019-11-12 | 2020-02-18 | 济南重工股份有限公司 | Wear-resistant and impact-resistant treatment method for hob ring of shield machine |
| CN111119915A (en) * | 2019-12-17 | 2020-05-08 | 中铁工程装备集团有限公司 | High-strength TBM (tunnel boring machine) center knife box and preparation method thereof |
| CN111575586A (en) * | 2020-05-29 | 2020-08-25 | 唐山冶金锯片有限公司 | Steel for hard alloy tooth circular saw blade and heat treatment method thereof |
| CN112029964A (en) * | 2020-08-31 | 2020-12-04 | 中铁二十局集团有限公司 | Method for manufacturing wear-resistant hob body |
| CN113787303A (en) * | 2021-08-23 | 2021-12-14 | 苏州福乐友机械科技有限公司 | Machining process for improving wear resistance of motor rotor shaft |
| CN113862554A (en) * | 2021-09-30 | 2021-12-31 | 西安理工大学 | Alloy for aluminum alloy cutting saw and preparation method thereof |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2524906A1 (en) * | 1982-04-07 | 1983-10-14 | Mitsubishi Metal Corp | COBALT ALLOY FOR ACCUMULATING WELDING HAVING IMPROVED WELDING CRACK RESISTANCE |
| JP2005097679A (en) * | 2003-09-25 | 2005-04-14 | Tokyo Electric Power Co Inc:The | Co-BASE ALLOY FOR PADDING STOP VALVE |
| CN201074516Y (en) * | 2007-09-07 | 2008-06-18 | 刘玉海 | Hob loop of shield machine |
| CN202866812U (en) * | 2012-09-21 | 2013-04-10 | 武汉江钻工程钻具有限责任公司 | Disc cutter ring for welding teeth |
| CN103484783A (en) * | 2013-10-18 | 2014-01-01 | 株洲硬质合金集团有限公司 | Alloy for cutter ring of disk type hobbing cutter and preparation method thereof |
| CN103921013A (en) * | 2014-05-07 | 2014-07-16 | 四川华都核设备制造有限公司 | Cobalt-base alloy welding wire, hook claw using welding wire, connection rod and surfacing method |
| CN104278268A (en) * | 2013-07-10 | 2015-01-14 | 上海宝钢工业技术服务有限公司 | Preparation method for protective coating of zinc pan roller sleeves and bushes |
| CN106522971A (en) * | 2016-12-31 | 2017-03-22 | 马鞍山精创工程刀具制造有限公司 | Spherical-tooth-shaped shield cutter, cutter ring material thereof and thermal treatment process |
| CN106761784A (en) * | 2016-11-30 | 2017-05-31 | 黄河科技学院 | A kind of polycrystalline diamond hobboing cutter cutter ring and its manufacture craft |
-
2017
- 2017-12-11 CN CN201711308797.1A patent/CN107842369A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2524906A1 (en) * | 1982-04-07 | 1983-10-14 | Mitsubishi Metal Corp | COBALT ALLOY FOR ACCUMULATING WELDING HAVING IMPROVED WELDING CRACK RESISTANCE |
| JP2005097679A (en) * | 2003-09-25 | 2005-04-14 | Tokyo Electric Power Co Inc:The | Co-BASE ALLOY FOR PADDING STOP VALVE |
| CN201074516Y (en) * | 2007-09-07 | 2008-06-18 | 刘玉海 | Hob loop of shield machine |
| CN202866812U (en) * | 2012-09-21 | 2013-04-10 | 武汉江钻工程钻具有限责任公司 | Disc cutter ring for welding teeth |
| CN104278268A (en) * | 2013-07-10 | 2015-01-14 | 上海宝钢工业技术服务有限公司 | Preparation method for protective coating of zinc pan roller sleeves and bushes |
| CN103484783A (en) * | 2013-10-18 | 2014-01-01 | 株洲硬质合金集团有限公司 | Alloy for cutter ring of disk type hobbing cutter and preparation method thereof |
| CN103921013A (en) * | 2014-05-07 | 2014-07-16 | 四川华都核设备制造有限公司 | Cobalt-base alloy welding wire, hook claw using welding wire, connection rod and surfacing method |
| CN106761784A (en) * | 2016-11-30 | 2017-05-31 | 黄河科技学院 | A kind of polycrystalline diamond hobboing cutter cutter ring and its manufacture craft |
| CN106522971A (en) * | 2016-12-31 | 2017-03-22 | 马鞍山精创工程刀具制造有限公司 | Spherical-tooth-shaped shield cutter, cutter ring material thereof and thermal treatment process |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110343965A (en) * | 2019-07-31 | 2019-10-18 | 广东华域重工有限公司 | A kind of high-intensity special-shaped steel and preparation method thereof |
| CN110802311A (en) * | 2019-11-12 | 2020-02-18 | 济南重工股份有限公司 | Wear-resistant and impact-resistant treatment method for hob ring of shield machine |
| CN111119915A (en) * | 2019-12-17 | 2020-05-08 | 中铁工程装备集团有限公司 | High-strength TBM (tunnel boring machine) center knife box and preparation method thereof |
| CN111575586A (en) * | 2020-05-29 | 2020-08-25 | 唐山冶金锯片有限公司 | Steel for hard alloy tooth circular saw blade and heat treatment method thereof |
| CN111575586B (en) * | 2020-05-29 | 2022-03-04 | 唐山冶金锯片有限公司 | Steel for hard alloy tooth circular saw blade and heat treatment method thereof |
| CN112029964A (en) * | 2020-08-31 | 2020-12-04 | 中铁二十局集团有限公司 | Method for manufacturing wear-resistant hob body |
| CN112029964B (en) * | 2020-08-31 | 2022-06-17 | 中铁二十局集团有限公司 | Method for manufacturing wear-resistant hob body |
| CN113787303A (en) * | 2021-08-23 | 2021-12-14 | 苏州福乐友机械科技有限公司 | Machining process for improving wear resistance of motor rotor shaft |
| CN113862554A (en) * | 2021-09-30 | 2021-12-31 | 西安理工大学 | Alloy for aluminum alloy cutting saw and preparation method thereof |
| CN114107815A (en) * | 2021-11-23 | 2022-03-01 | 中铁工程装备集团有限公司 | High-toughness wear-resistant shield tunneling machine inserted hobbing cutter ring and preparation method thereof |
| CN114107815B (en) * | 2021-11-23 | 2022-07-01 | 中铁工程装备集团有限公司 | High-toughness wear-resistant shield tunneling machine inserted hobbing cutter ring and preparation method thereof |
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