CN107859521A - A kind of Hob cutter ring of shield machine and its manufacture method with Tungsten Carbide Surfacing alloy - Google Patents
A kind of Hob cutter ring of shield machine and its manufacture method with Tungsten Carbide Surfacing alloy Download PDFInfo
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- CN107859521A CN107859521A CN201711308554.8A CN201711308554A CN107859521A CN 107859521 A CN107859521 A CN 107859521A CN 201711308554 A CN201711308554 A CN 201711308554A CN 107859521 A CN107859521 A CN 107859521A
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 42
- 239000000956 alloy Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 32
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000003466 welding Methods 0.000 claims abstract description 56
- 239000011159 matrix material Substances 0.000 claims abstract description 48
- 229910000851 Alloy steel Inorganic materials 0.000 claims abstract description 32
- 239000000203 mixture Substances 0.000 claims abstract description 24
- 239000012535 impurity Substances 0.000 claims abstract description 22
- 238000005520 cutting process Methods 0.000 claims abstract description 20
- 238000005496 tempering Methods 0.000 claims abstract description 12
- 238000003754 machining Methods 0.000 claims abstract description 11
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 10
- 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
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 7
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 5
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 9
- 230000007704 transition Effects 0.000 claims description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- 238000007493 shaping process Methods 0.000 claims description 8
- 229910052786 argon Inorganic materials 0.000 claims description 4
- 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
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 2
- 239000010962 carbon steel Substances 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 230000001934 delay Effects 0.000 claims 1
- 238000010923 batch production Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 description 14
- 238000005253 cladding Methods 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000013467 fragmentation Methods 0.000 description 3
- 238000006062 fragmentation reaction Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000010959 steel Substances 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
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 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
- 230000008676 import 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
- 238000010583 slow cooling Methods 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 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
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/04—Alloys based on tungsten or molybdenum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
Abstract
The invention discloses a kind of Hob cutter ring of shield machine with Tungsten Carbide Surfacing alloy, 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 diamondite (2), the composition (percentage by weight) of the diamondite (2) are in groove：40 80%W, 1.5 4.5%C ,≤3.0%Mn ,≤4.0%Si ,≤5.0%Cr ,≤8.0%Mo ,≤5.0%V ,≤5.0%Nb ,≤5.0%Co, remaining is Fe 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 >=300 DEG C, in the groove built-up welding filling diamondite (2), postheating or carry out tempering temperature >=300 DEG C temper；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 Tungsten Carbide Surfacing alloy
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 Tungsten Carbide Surfacing alloy, can significantly improve hobboing cutter knife
The service life of circle, Tungsten Carbide Surfacing alloy 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 Tungsten Carbide Surfacing alloy, including cutter ring made of steel alloy
Matrix, on the outer rim cutting edge of the cutter ring matrix, the groove that multiple thickness directions run through circumferentially it has been uniformly distributed, built-up welding in groove
Diamondite is filled, the composition (percentage by weight) of the diamondite is：40-80%W, 1.5-4.5%C ,≤
3.0%Mn ,≤4.0%Si ,≤5.0%Cr ,≤8.0%Mo ,≤5.0%V ,≤5.0%Nb ,≤5.0%Co, remaining be Fe and
Impurity element.
Preferably the composition (percentage by weight) of the built-up welding filling diamondite is：55-68%W, 2.5-4.0%C,
≤ 2.5%Mn ,≤3.5%Si ,≤4.0%Cr ,≤6.0%Mo ,≤3.0%V ,≤3.0%Nb ,≤2.5%Co, remaining is Fe
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.
Diamondite 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 well for diamondite overlay cladding
Substrate support.Because diamondite is inlaid solid on alloy steel matrix by metallurgical binding, so its cracking resistance in use,
Antistrip performance is fine.
, can be in above-mentioned groove during built-up welding filling diamondite in order to further improve the service life of cutter ring, overlay cladding
Cylindrical basal plane is higher by, after being processed into finished product, the built-up welding filling diamondite protrusion outer rim basal plane 3-14mm.Protrusion is less than
3mm then increases the DeGrain of wearability；Higher than 14mm, then projection easily breaks, peeled off protrusion when in use, and can increase
Valuable diamondite is added to consume.
The invention provides a kind of above-mentioned manufacture method of the Hob cutter ring of shield machine with Tungsten Carbide Surfacing alloy, main bag
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 >=300 DEG C；Diamondite, postheating are filled in built-up welding in the groove
Or carry out the temper of tempering temperature >=300 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, it is to prevent weld crack and increase overlay cladding and the plasticity and toughness of matrix junction during built-up welding, can first exists
With the transition zone that carbon steel or Developing Tendency of Low-Alloy Steel Welding Material built-up welding covering 1-3mm are thick, then the built-up welding on transition zone on the groove face
Diamondite.
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 Tungsten Carbide Surfacing alloy.The shield machine
Hobboing cutter cutter ring has excellent wearability, impact resistance, antistrip performance, can significantly improve the service life of cutter ring, so as to have
Beneficial to 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 diamondite 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 diamondite overlay cladding of table 2
Embodiment 1
The Hob cutter ring of shield machine with Tungsten Carbide Surfacing alloy of Φ 432mm specifications, including cutter ring base made of steel alloy
Body (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
Position built-up welding filling diamondite (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 impurity element).The chemical composition of cutter ring diamondite 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 350-400 DEG C；The method of arc welding built-up welding in the groove by hand
Diamondite (2) is filled, postwelding is put into furnace cooling in 350-400 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 Tungsten Carbide Surfacing alloy of Φ 432mm specifications, including cutter ring base made of steel alloy
Body (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
Position built-up welding filling diamondite (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 impurity element).The chemical composition of cutter ring diamondite 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 350-400 DEG C；The method of arc welding built-up welding in the groove by hand
Diamondite (2) is filled, postwelding is put into furnace cooling in 350-400 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 Tungsten Carbide Surfacing alloy of Φ 432mm specifications, including cutter ring base made of steel alloy
Body (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
Position built-up welding filling diamondite (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 impurity element).The chemical composition of cutter ring diamondite 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 350-400 DEG C；With the method for argon arc weld deposit, built-up welding is filled out in the groove
Diamondite (2) is filled, postwelding is put into furnace cooling in 350-400 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 Tungsten Carbide Surfacing alloy of Φ 432mm specifications, including cutter ring base made of steel alloy
Body (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
Position built-up welding filling diamondite (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 impurity element).The chemical composition of cutter ring diamondite 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 350-400 DEG C；With method built-up welding in the groove of oxyacetylene welding
Diamondite (2) is filled, postwelding is put into furnace cooling in 350-400 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 Tungsten Carbide Surfacing alloy of Φ 432mm specifications, including cutter ring base made of steel alloy
Body (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
Position built-up welding filling diamondite (2), built-up welding filling diamondite (2) the protrusion outer rim basal plane 10-12mm.Referring to figure
3.The chemical composition of steel alloy cutter ring base material is shown in Table 1 (remaining is Fe and impurity element).The change of cutter ring diamondite overlay cladding
Study and point be 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 350-400 DEG C；With the method for argon arc weld deposit, built-up welding is filled out in the groove
Diamondite (2) is filled, overlay cladding should be caused to be higher by outer rim basal plane, should ensure that diamondite is filled in built-up welding after finished product is made
(2) outer rim basal plane 10-12mm is protruded.Referring to Fig. 3, postwelding is put into furnace cooling in 350-400 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 Tungsten Carbide Surfacing alloy of Φ 432mm specifications, including cutter ring base made of steel alloy
Body (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
J507 welding rod built-up welding 2mm or so thick transition zone (3) is used on groove face, then diamondite 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 diamondite
The chemical composition of overlay cladding 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 J507 welding rod manual electric arc pile up weldings 2mm or so thickness is used on the groove face, then
Tungsten Carbide Surfacing alloy (2) on transition zone, referring to Fig. 4.During Tungsten Carbide Surfacing alloy, by cutter ring substrate preheating to 350-400 DEG C；
The method of arc welding built-up welding filling diamondite (2), postwelding in the groove is put into 350-400 DEG C of stove with stove by hand
Slow cooling.
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 Tungsten Carbide Surfacing alloy, including cutter ring matrix (1) made of steel alloy, its feature
It is：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, in groove
Built-up welding filling diamondite (2), the composition (percentage by weight) of the diamondite (2) are：40-80%W, 1.5-
4.5%C ,≤3.0%Mn ,≤4.0%Si ,≤5.0%Cr ,≤8.0%Mo ,≤5.0%V ,≤5.0%Nb ,≤5.0%Co,
Remaining is Fe and impurity element.
2. the Hob cutter ring of shield machine as claimed in claim 1 with Tungsten Carbide Surfacing alloy, it is characterised in that：The built-up welding is filled out
The composition (percentage by weight) for filling diamondite (2) is：55-68%W, 2.5-4.0%C ,≤2.5%Mn ,≤3.5%Si,
≤ 4.0%Cr ,≤6.0%Mo ,≤3.0%V ,≤3.0%Nb ,≤2.5%Co, remaining is Fe and impurity element.
A kind of 3. Hob cutter ring of shield machine as claimed in claim 1, it is characterised in that：Composition (the weight of the cutter ring matrix (1)
Amount percentage) be：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 Tungsten Carbide Surfacing alloy, it is characterized in that being：The cutter ring
The composition (percentage by weight) of matrix (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.
5. the Hob cutter ring of shield machine as claimed in claim 1 with Tungsten Carbide Surfacing alloy, it is characterised in that：The built-up welding is filled out
Fill diamondite (2) protrusion outer rim basal plane 3-14mm.
6. the manufacturer of the Hob cutter ring of shield machine with Tungsten Carbide Surfacing alloy as described in claim 1-5 any one
Method, it is characterised in that：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 >=300 DEG C；The built-up welding filling diamondite (2) in the groove, postwelding delays
Temper that is cold or carrying out tempering temperature >=300 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 Tungsten Carbide Surfacing alloy, its feature exist
In：The depth for the groove that circumferentially 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 Tungsten Carbide Surfacing alloy, its feature exist
In：In the built-up welding step, first with carbon steel or Developing Tendency of Low-Alloy Steel Welding Material, bottoming covers built-up welding 1-3mm on the rooved face
Thick transition zone (3), then the Tungsten Carbide Surfacing alloy (2) on transition zone (3).
9. the manufacture method of the Hob cutter ring of shield machine as claimed in claim 6 with Tungsten Carbide Surfacing alloy, its feature exist
In：The overlaying method that the built-up welding step uses is manual electric arc welding or argon arc weld deposit or oxyacetylene welding.
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| CN201711308554.8A CN107859521A (en) | 2017-12-11 | 2017-12-11 | A kind of Hob cutter ring of shield machine and its manufacture method with Tungsten Carbide Surfacing alloy |
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| CN201711308554.8A CN107859521A (en) | 2017-12-11 | 2017-12-11 | A kind of Hob cutter ring of shield machine and its manufacture method with Tungsten Carbide Surfacing alloy |
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| CN107859521A true CN107859521A (en) | 2018-03-30 |
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| CN201711308554.8A Pending CN107859521A (en) | 2017-12-11 | 2017-12-11 | A kind of Hob cutter ring of shield machine and its manufacture method with Tungsten Carbide Surfacing alloy |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108624825A (en) * | 2018-04-28 | 2018-10-09 | 山东硕源工业机械设备有限公司 | It is inlaid with the production technology of the crusher Jaw plate of casting nail |
| CN110394830A (en) * | 2018-04-24 | 2019-11-01 | 武汉苏泊尔炊具有限公司 | The processing method of cutter and the cutter |
| 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 |
| CN112605609A (en) * | 2020-12-01 | 2021-04-06 | 中铁工程装备集团有限公司 | Tower type hobbing cutter ring and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1738520A1 (en) * | 1990-02-26 | 1992-06-07 | Пермский сельскохозяйственный институт им.акад.Д.Н.Прянишникова | Method of hard-facing using consumable electrodes |
| CN201074516Y (en) * | 2007-09-07 | 2008-06-18 | 刘玉海 | Hob loop of shield machine |
| CN101380698A (en) * | 2008-10-09 | 2009-03-11 | 苏州江钻新锐硬质合金有限公司 | Novel tubular hard surfacing material |
| CN204476418U (en) * | 2014-12-19 | 2015-07-15 | 山东天工岩土工程设备有限公司 | Novel wear resistant TBM hob |
| CN205260045U (en) * | 2015-12-28 | 2016-05-25 | 中交隧道工程局有限公司南京分公司 | Shield constructs machine high rigidity hobbing cutter |
-
2017
- 2017-12-11 CN CN201711308554.8A patent/CN107859521A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1738520A1 (en) * | 1990-02-26 | 1992-06-07 | Пермский сельскохозяйственный институт им.акад.Д.Н.Прянишникова | Method of hard-facing using consumable electrodes |
| CN201074516Y (en) * | 2007-09-07 | 2008-06-18 | 刘玉海 | Hob loop of shield machine |
| CN101380698A (en) * | 2008-10-09 | 2009-03-11 | 苏州江钻新锐硬质合金有限公司 | Novel tubular hard surfacing material |
| CN204476418U (en) * | 2014-12-19 | 2015-07-15 | 山东天工岩土工程设备有限公司 | Novel wear resistant TBM hob |
| CN205260045U (en) * | 2015-12-28 | 2016-05-25 | 中交隧道工程局有限公司南京分公司 | Shield constructs machine high rigidity hobbing cutter |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110394830A (en) * | 2018-04-24 | 2019-11-01 | 武汉苏泊尔炊具有限公司 | The processing method of cutter and the cutter |
| CN108624825A (en) * | 2018-04-28 | 2018-10-09 | 山东硕源工业机械设备有限公司 | It is inlaid with the production technology of the crusher Jaw plate of casting nail |
| 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 |
| CN112605609A (en) * | 2020-12-01 | 2021-04-06 | 中铁工程装备集团有限公司 | Tower type hobbing cutter ring and preparation method thereof |
| CN112605609B (en) * | 2020-12-01 | 2022-03-04 | 中铁工程装备集团有限公司 | Tower type hobbing cutter ring and preparation method thereof |
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