CN104625448A - Tungsten carbide particle wear-resistant layer structure and machining method and application of tungsten carbide particle wear-resistant layer structure - Google Patents
Tungsten carbide particle wear-resistant layer structure and machining method and application of tungsten carbide particle wear-resistant layer structure Download PDFInfo
- Publication number
- CN104625448A CN104625448A CN201410801812.6A CN201410801812A CN104625448A CN 104625448 A CN104625448 A CN 104625448A CN 201410801812 A CN201410801812 A CN 201410801812A CN 104625448 A CN104625448 A CN 104625448A
- Authority
- CN
- China
- Prior art keywords
- tungsten carbide
- carbide particle
- welding
- wearing layer
- layer structure
- 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.)
- Granted
Links
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 title claims abstract description 145
- 239000002245 particle Substances 0.000 title claims abstract description 131
- 238000000034 method Methods 0.000 title abstract description 31
- 238000003754 machining Methods 0.000 title abstract 2
- 238000003466 welding Methods 0.000 claims abstract description 135
- 230000001360 synchronised effect Effects 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 6
- 239000007921 spray Substances 0.000 claims abstract description 5
- 238000005065 mining Methods 0.000 claims description 18
- 238000003672 processing method Methods 0.000 claims description 18
- 238000005553 drilling Methods 0.000 claims description 17
- 239000011159 matrix material Substances 0.000 claims description 16
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 12
- 238000003801 milling Methods 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 239000002994 raw material Substances 0.000 abstract description 5
- 229910000679 solder Inorganic materials 0.000 abstract description 5
- 229910045601 alloy Inorganic materials 0.000 description 13
- 239000000956 alloy Substances 0.000 description 13
- 238000010276 construction Methods 0.000 description 12
- 230000002093 peripheral effect Effects 0.000 description 10
- 229910052804 chromium Inorganic materials 0.000 description 5
- 239000011651 chromium Substances 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
Abstract
The invention relates to a tungsten carbide particle wear-resistant layer structure and a machining method and application of the tungsten carbide particle wear-resistant layer structure. Tungsten carbide particles serve as raw materials, and the solder wire synchronous welding mode is adopted. While welding wires are welded to the surface of a workpiece to form a welding pool, the tungsten carbide particles sprayed out of a spray nozzle on a quantitative conveying device enter the welding pool. When the welding wires move forwards, the welding pool behind is cooled and solidified, the tungsten carbide particles are wrapped in welding deposited metal, the spray nozzle on the quantitative conveying device synchronously moves while the welding pool moves, and therefore a wear-resistant layer containing the tungsten carbide particles is formed step by step. The tungsten carbide particle wear-resistant layer obtained according to the method is better in wear-resistant performance, longer in service life and capable of better protecting a device. The method is simple in step, easy to operate and high in efficiency. The tungsten carbide particle wear-resistant layer can be obtained within a short period of time and is wide in application range, the tungsten carbide particle wear-resistant layer can be formed on different devices and workpieces, and the application limitation is small.
Description
Technical field
The present invention relates to a kind of tungsten carbide particle wearing layer structure and processing method thereof and application, belong to plant equipment wear-proof technique field.
Background technology
Tunnel to build in underground or under water and place an iron railway for the current building of locomotive motor vehicle.Mountain tunnel, submerged tunnel and city tunnel three major types can be divided into according to its position.The process of construction of roads and tunnels is mainly tunnel planning, exploration, design, the work tunnel excavation excavation methods such as through control survey and construction are divided into cut and cover method and subsurface excavation method, the driving in tunnel completes primarily of shield machine and TBM (Tunnel Boring Machine) rock tunnel(ling) machine, utilize rotating tool to excavate, country rock and driving in broken hole simultaneously, the one forming whole tunnel cross-section is novel, advanced tunnel construction machinery, the anti-wear performance of Suporting structure and cutter and TBM equipment and cutter has vital impact to tunnel piercing, the wear out failure of heading equipment and cutter has a strong impact on tunnel normal construction, strengthen construction cost, mining machine is the key equipment ensureing that coal is normally produced, but equipment is aborning due to the wear out failure of mining cutter, causes the replacing of mining cutter frequent, brings economic loss to mining listed corporations, rotary drilling rig and pavement milling machine are in ongoing operations process, the wear out failure of drilling tool and road-surface milling tooth, have a strong impact on construction period, cause the increase of construction cost, some other plant equipment also can affect the service life of equipment because of the anti-wear performance of building block simultaneously.
At present for the problems referred to above, most employing sets up high-chromium wear-resistant layer at the key position of machinery, increases the service life of plant equipment, but high-chromium wear-resistant layer is as common wearing layer, its anti-wear performance need to improve, and it still exists phenomenon easy to wear in work progress.In recent years; a lot of plant equipment starts adopt tungsten carbide to form wearing layer; utilize the high-wearing feature that tungsten carbide has, the tungsten carbide wear resistant layer that the working face of plant equipment is formed can protect plant equipment well, the service life of prolonged mechanical equipment.
Chinese patent literature CN202579581U discloses a kind of thrust bearing for magnetic pumps, and in cannelure on the bearing, heap is welded with tungsten carbide wear resistant layer, by utilizing tungsten carbide filler rod directly Tungsten Carbide Surfacing wearing layer in the cannelure of loop substrate.The tungsten carbide wear resistant layer that the method is formed is connected reliably with loop substrate, there will not be the phenomenon that gets loose.But the method needs to use tungsten carbide filler rod, and the tungsten carbide size in tungsten carbide filler rod is all much smaller than 1mm, cannot realize the preparation of coarse granule tungsten carbide particle wearing layer, and the content of tungsten carbide is certain, cannot adjust as required.
Chinese patent literature CN101016826B provides bit body of a kind of diamond bit and preparation method thereof, the method is by cladded wolfram carbide wearing layer outside bone core, tungsten carbide wear resistant layer has binding metal to form through high temperature melting infiltration sintering through oversintering, and is sintered to one by steel core.The tungsten carbide wear resistant layer complex technical process that the method obtains, require higher to each technological parameter in technical process, the tungsten carbide powder used needs through multiple tracks processing step, and the method cannot be applied to multiple different occasion.
For Problems existing in current existing wearing layer processing method, we adopt novel wear-proof technique, in the mode of tungsten carbide coarse granule and welding wire synchronous welding, tungsten carbide particle and welding wire synchronous welding is allowed to form a kind of novel wear resistant layer, the application of this novel wear resistant layer, greatly can improve the anti-wear performance of equipment and cutter, ensure the normal operation of above-mentioned all kinds of construction and save construction cost.
Summary of the invention
For the deficiencies in the prior art, the invention provides one with tungsten carbide coarse granule for raw material, the tungsten carbide particle wearing layer structure that employing obtains with the mode of welding wire synchronous welding.
The present invention also provides a kind of processing method of above-mentioned tungsten carbide particle wearing layer structure.
Technical scheme of the present invention is as follows:
A kind of tungsten carbide particle wearing layer structure, comprise metallic matrix and tungsten carbide particle, be melted in surface of the work formation welding pool by welding and obtain described metallic matrix, in welding pool, inject described tungsten carbide particle by the mode of synchronous welding, be arranged at coated for described tungsten carbide particle in metallic matrix.
Preferably, described metallic matrix is weld by middle low carbon steel welding wire the metallic matrix being melted in surface of the work formation welding pool and obtaining.
Preferred further, described middle low carbon steel welding wire is the middle low carbon steel welding wire of φ 0.5mm-φ 4mm.
Preferably, described tungsten carbide particle is purity is 80-97%, particle diameter is the tungsten carbide particle of 0.5-5mm.
A processing method for tungsten carbide particle wearing layer structure, comprises step as follows,
(1) get that purity is 80-97%, particle diameter is the tungsten carbide particle of 0.5-5mm, for subsequent use;
(2) the middle low carbon steel welding wire of φ 0.5mm-φ 4mm is got, for subsequent use;
(3) the middle low carbon steel welding wire in step (2) is welded on the working face of workpiece to be processed with the translational speed of 25-80cm/min, when welding wire is while surface of the work built-up welding forms welding pool, by the nozzle on quantitative conveyer with 100-1000mm
3the speed ejection tungsten carbide particle of/min enters into welding pool; When welding wire moves forward, molten bath cooling solidification below, is wrapped in tungsten carbide particle in welding deposited metal, along with the movement in molten bath, nozzle on quantitative conveyer also moves with the speed sync same with welding gun, progressively forms the wearing layer comprising tungsten carbide particle thus.
Preferably, in step (3), welding gun is used to carry out melting to welding wire under weldingvoltage 25-45V.The advantage of this design is, the melting effect of welding wire under this weldingvoltage is best, and the bath temperature of formation is high, and tungsten carbide particle can tightly wrap up by molten bath, good to the parcel of tungsten carbide particle, the tungsten carbide wear resistant layer longer service life formed thus.
Preferably, the working face of Suporting structure and shield cutter arranges tungsten carbide particle wearing layer.
Preferably, the working face of TBM equipment and TBM cutter arranges tungsten carbide particle wearing layer.
Preferably, the working face of mining machine and mining cutter arranges tungsten carbide particle wearing layer.
Preferably, the working face of rotary drilling rig drilling tool arranges tungsten carbide particle wearing layer.
Preferably, the working face of pavement milling machine and road milling cutter arranges tungsten carbide particle wearing layer.
Preferably, the working face of power shovel and bucket tooth arranges tungsten carbide particle wearing layer.
Preferably, the working face of bull-dozer scraper bowl and bucket tooth arranges tungsten carbide particle wearing layer.
Beneficial effect of the present invention is:
1. the processing method of tungsten carbide particle wearing layer of the present invention, take tungsten carbide particle as raw material, adopt the mode of welding wire synchronous welding to weld on various equipment and cutter and form tungsten carbide particle wearing layer, the method is different from traditional to be welded by tungsten carbide filler rod or the mode of in-situ sintering obtains the way of tungsten carbide wear resistant layer at equipment working face, provides new way for forming wearing layer on equipment.
2. the processing method of tungsten carbide particle wearing layer of the present invention, construction does not need the expensive investments of laser equipment, only needs common welding machine in conjunction with quantitative feed equipment, boundary of works area extensively, limit little, construction cost reduces greatly, and individual layer molding thickness comparatively fuse and apply to face by laser light method greatly increase.
3. the tungsten carbide wear resistant layer that the tungsten carbide particle wearing layer obtained by the inventive method is more traditional, its anti-wear performance is better, and longer service life, can form better protection to equipment.
4. the inventive method step is simple, and be easy to operation, efficiency is high, tungsten carbide particle wearing layer can be obtained at short notice, and the method applied range, easy and simple to handle, can form this tungsten carbide particle wearing layer on multiple different equipment and workpiece, limitation is little.
Accompanying drawing explanation
Fig. 1 is the structural representation of shield cutter welding tungsten carbide particle wearing layer in embodiment 3;
Fig. 2 is the sectional view along A-A line in Fig. 1;
Fig. 3 is the structural representation of TBM cutter tunneling boring welding tungsten carbide particle wearing layer in embodiment 4;
Fig. 4 is the structural representation of TBM cutter cutter ring welding tungsten carbide particle wearing layer in embodiment 4;
Fig. 5 is the structural representation of TBM cutter cutter hub welding tungsten carbide particle wearing layer in embodiment 4;
Fig. 6 is the structural representation of mining Welding of cutters tungsten carbide particle wearing layer in embodiment 5;
Fig. 7 is the structural representation of mining Welding of cutters tungsten carbide particle wearing layer in embodiment 5;
Wherein: 1,2,3,4,5,6,7,8,9,10 be tungsten carbide particle wearing layer.
Detailed description of the invention
Below by embodiment, also the present invention will be further described by reference to the accompanying drawings, but be not limited thereto.
Embodiment 1:
The processing method of a kind of wearing layer provided by the invention, is raw material with tungsten carbide particle, comprises step,
(1) get that purity is 97%, particle diameter 5mm tungsten carbide particle, tungsten carbide particle is encased in quantitative conveyer, for future use;
(2) the middle low carbon steel welding wire of φ 0.5mm is loaded welding equipment, use welding gun to prepare welding;
(3) welding gun is used to be welded on the working face of workpiece to be processed by welding wire with the speed of 80cm/min under weldingvoltage 45V, when welding wire is while surface of the work built-up welding forms welding pool, by the nozzle on quantitative conveyer with 100mm
3/ min sprays tungsten carbide particle and enters into welding pool; When welding wire moves forward, molten bath cooling solidification below, is wrapped in tungsten carbide particle in welding deposited metal, along with the movement in molten bath, nozzle on quantitative conveyer also moves with the speed sync of the speed sync movement same with welding gun, progressively forms the wearing layer comprising tungsten carbide particle thus.
The coarse grained wearing layer of change tungsten obtained by the method, the wearing layer hardness obtained compared with previous methods is high, wearability good, long service life.
Common high-chromium wear-resistant layer hardness is about HRC60, and tungsten carbide particle hardness can reach more than HRC70 (HRA86.5), and therefore tungsten carbide particle is compared with common high-chromium wear-resistant layer and had high wearability, but pure WC poor toughness, be hit easily cracked.The high-wearing feature of the present invention's tungsten carbide particle is just set out, and forms the fabulous and impact-resistant tungsten carbide particle wearing layer of wearability with the tungsten carbide particle that toughness good metal parcel wearability is fabulous.
When tungsten carbide particle wearing layer is subject to rubbing, tungsten carbide particle in tungsten carbide particle wearing layer contacts with rubber, and melting metallisation can wear and tear along with the wearing and tearing of tungsten carbide particle, because tungsten carbide particle hardness is high, wearability is good, and therefore the wearability of wearing layer entirety improves greatly.
According to anti-wear performance contrast test, tungsten carbide particle wearing layer is 3 ~ 5 times of high-chromium wear-resistant layer anti-wear performance; According to the proof test in building site, Sichuan, tungsten carbide particle wearing layer cutting-gear life reaches more than 2 times of common wearing layer pick.
The tungsten carbide particle wearing layer structure utilizing the method to obtain, comprise metallic matrix and tungsten carbide particle, be melted in surface of the work formation welding pool by welding and obtain described metallic matrix, in welding pool, inject described tungsten carbide particle by the mode of synchronous welding, be arranged at coated for described tungsten carbide particle in metallic matrix.The thickness of the tungsten carbide particle wearing layer obtained is 15mm.
Embodiment 2:
The processing method of a kind of wearing layer provided by the invention, as described in Example 1, its difference is its method step, gets that purity is 80%, particle diameter 0.5mm tungsten carbide particle is raw material in step (1); The middle low carbon steel welding wire of φ 4mm is selected to weld in step (2); In step (3), welding wire welds with the speed of 25cm/min by welding gun under weldingvoltage 25V, and nozzle is with 1000mm
3/ min sprays tungsten carbide particle and enters into welding pool.
The tungsten carbide particle wearing layer structure utilizing the method to obtain, comprise metallic matrix and tungsten carbide particle, be melted in surface of the work formation welding pool by welding and obtain described metallic matrix, in welding pool, inject described tungsten carbide particle by the mode of synchronous welding, be arranged at coated for described tungsten carbide particle in metallic matrix.The thickness of the tungsten carbide particle wearing layer obtained is 2mm.
Embodiment 3:
The processing method described in embodiment 1 is utilized to weld tungsten carbide particle wearing layer on Suporting structure and shield cutter; Suporting structure mainly comprises board wheel and spoke wheel, the tungsten carbide particle welding of wear-resisting layers position of described board wheel is panel working face and face plate edge arc position, and the welding position of described spoke wheel is on spoke working face and spoke edge arc surface;
Shield cutter mainly comprises dual-pilot cutter, mytiliform cutter, center cutter, imitation-shaped knife and scum board, welding on described dual-pilot cutter, welding position is that the alloy of dual-pilot cutter cutter hub is peripheral, main solder side is peripheral at the top surface alloy of all around four faces and the dual-pilot cutter cutter hub of dual-pilot cutter cutter hub, takes the mode of tungsten carbide particle and welding wire synchronous welding; Welding on described mytiliform cutter, the position of welding is the alloy periphery of mytiliform cutter cutter hub, comprise the position, gap between alloy, and the top surface alloy of all around four working faces and the cutter hub of mytiliform cutter cutter hub is peripheral; Welding on described center cutter, centered by the position of welding on cutter cutter hub, comprises center cutter alloy peripheral, and on the groundwork face of center cutter; Welding on described imitation-shaped knife, according to the installation site of imitation-shaped knife on shield machine, imitation-shaped knife is mainly arranged on the marginal position of cutterhead, is on the cutter hub front end face of imitation-shaped knife according to real work situation tungsten carbide particle welding of wear-resisting layers position; Welding on described scum board, comprises and being welded on front scum board and rear scum board.
In welding process, tungsten carbide particle and welding wire synchronous welding are on the surface of Suporting structure and cutter; wear-resistant protection is formed to Suporting structure and cutter; such welding manner had both been formed Suporting structure main body and had protected well; add the anti-wear performance of shield cutter simultaneously; improve the service life of shield cutter; decrease replacing number of times and the cutterhead maintenance frequency of shield cutter in tunneling process, save construction cost.
Embodiment 4:
The processing method described in embodiment 1 is utilized to weld tungsten carbide particle wearing layer on TBM equipment and TBM cutter; The welding of tungsten carbide particle wearing layer on TBM equipment, welding position is on the spoke of TBM cutterhead and cutterhead edge arc surface;
The welding of tungsten carbide particle on TBM cutter, is mainly welded on flange-type hob, insert cutter, middle tooth cutter, knife rest and girff.Welding wherein on TBM cutter flange-type hob, mainly for single-blade hob, double-edged hobbing cutter, duplex hobboing cutter, welding position is the cutter ring blade both sides of single-blade hob and double-edged hobbing cutter, namely alloy is peripheral, the welding position of duplex hobboing cutter is in the both sides of cutter ring blade, namely alloy is peripheral, and on the preposition arcwall face of middle frame, also adopt this welding manner on the cutter hub of flange-type hob, the position of welding is mainly the two ends, left and right of cutter hub simultaneously, can weld full arc face, also can be welded as strip wing wearing layer; Welding on insert cutter, the position of main welding is the both sides of cutter ring blade, i.e. in the left and right both ends of the surface of the periphery of the meshing gold of ball, and insert cutter conductor, can weld full arc face, also can be welded as strip wing wearing layer; Welding on middle tooth cutter, main welding position is the two ends, cutter hub left and right of middle tooth cutter, can weld full arc face, also can be welded as strip wing wearing layer, is distributed on the whole end face of cutter hub; Welding on TBM knife rest and girff, faces directly, towards the side of working face before the welding position of knife rest and girff is mainly.
TBM takes such synchronous welding mode; first good protection is formed to TBM cutterhead; avoid the wearing and tearing of shield cutter; protection is formed to TBM cutter simultaneously; especially to this protected mode of TBM cutter cutter hub and cutter ring; cutting-tool's used life can be improved largely, effectively avoid cutter because of the generation of the tool failure phenomenon brought easy to wear.
Embodiment 5:
The processing method described in embodiment 1 is utilized to weld tungsten carbide particle wearing layer on mining machine and mining cutter; The welding of tungsten carbide particle wearing layer on mining machine and mining cutter, mainly be welded on the cylinder barrel working face of flitting, coal plough, continuous miner, cut coal-winning machine, auger, improve coal-winning machine in the anti-wear performance of coal mining process intermediate roll and service life;
Welding on mining cutter, main brazed shank tool is flat bit and conical pick, wherein the solder side of flat bit be master alloying body the peripheral conical surface in alloy hole on and the face, left and right of flat bit, the solder side of conical pick is the peripheral conical surface in alloy hole of master alloying, enhance the anti-wear performance of mining pick, improve mining pick slicing coal efficiency.
Embodiment 6:
The processing method described in embodiment 1 is utilized to weld tungsten carbide particle wearing layer on rotary drilling rig drilling tool; The welding of tungsten carbide particle wearing layer on rotary drilling rig drilling tool; mainly for welding of rotary drilling digger and augers; the welding position of rotary drilling digger is on the barrel of drilling bucket; the welding of augers is mainly welded on the blade surface of helical blade; welding on rotary drilling rig drilling tool; drilling tool, mainly in the alloy peripheral surface of drag bit and bit leg face and bucket tooth, forms protection to drilling tool.
Embodiment 7:
The processing method described in embodiment 1 is utilized to weld tungsten carbide particle wearing layer on pavement milling machine and road milling cutter; The welding of tungsten carbide particle wearing layer on pavement milling machine, main welding position be milling and planing drum cylindrical shell watt seat on welding on road milling cutter, mainly be welded on road surface cement tooth, pitch tooth, wherein the solder side of road surface cement tooth and pitch tooth is arranged on the peripheral conical surface in the alloy hole of tooth head alloy.
Embodiment 8:
The processing method described in embodiment 1 is utilized to weld tungsten carbide particle wearing layer on power shovel and bucket tooth; Tungsten carbide particle wearing layer is in the welding of power shovel and bucket tooth, and the main positions of welding is that on the bucket lip of excavator and leading face, the welding position of bucket tooth is mainly arranged on bucket tooth tooth head position.
Embodiment 9:
The processing method described in embodiment 1 is utilized to weld tungsten carbide particle wearing layer on bull-dozer scraper bowl and bucket tooth; Tungsten carbide particle wearing layer is in the welding of bull-dozer scraper bowl and bucket tooth, and the main positions of welding is that on the bucket lip of bull-dozer and leading face, the welding position of bucket tooth is mainly arranged on bucket tooth tooth head position.
Claims (10)
1. a tungsten carbide particle wearing layer structure, it is characterized in that, comprise metallic matrix and tungsten carbide particle, be melted in surface of the work formation welding pool by welding and obtain described metallic matrix, in welding pool, inject described tungsten carbide particle by the mode of synchronous welding, be arranged at coated for described tungsten carbide particle in metallic matrix.
2. tungsten carbide particle wearing layer structure as claimed in claim 1, is characterized in that, described metallic matrix is weld by middle low carbon steel welding wire the metallic matrix being melted in surface of the work formation welding pool and obtaining.
3. tungsten carbide particle wearing layer structure as claimed in claim 2, it is characterized in that, described middle low carbon steel welding wire is the middle low carbon steel welding wire of φ 0.5mm-φ 4mm.
4. tungsten carbide particle wearing layer structure as claimed in claim 1, is characterized in that, described tungsten carbide particle is purity is 80-97%, particle diameter is the tungsten carbide particle of 0.5-5mm.
5. a processing method for the tungsten carbide particle wearing layer structure described in any one of Claims 1-4, comprises step as follows,
(1) get that purity is 80-97%, particle diameter is the tungsten carbide particle of 0.5-5mm, for subsequent use;
(2) the middle low carbon steel welding wire of φ 0.5mm-φ 4mm is got, for subsequent use;
(3) the middle low carbon steel welding wire in step (2) is welded on the working face of workpiece to be processed with the translational speed of 25-80cm/min, when welding wire is while surface of the work built-up welding forms welding pool, spray tungsten carbide particle by the nozzle on quantitative conveyer with the speed of 100-1000mm3/min and enter into welding pool; When welding wire moves forward, molten bath cooling solidification below, is wrapped in tungsten carbide particle in welding deposited metal, along with the movement in molten bath, nozzle on quantitative conveyer also moves with the speed sync same with welding gun, progressively forms the wearing layer comprising tungsten carbide particle thus.
6. the processing method of tungsten carbide particle wearing layer structure as claimed in claim 5, is characterized in that, in step (3), uses welding gun to carry out melting to welding wire under weldingvoltage 25-45V.
7. the application of tungsten carbide particle wearing layer structure as claimed in claim 1, is characterized in that, the working face of Suporting structure and shield cutter arranges tungsten carbide particle wearing layer.
8. the application of tungsten carbide particle wearing layer structure as claimed in claim 1, is characterized in that, the working face of TBM equipment and TBM cutter arranges tungsten carbide particle wearing layer.
9. the application of tungsten carbide particle wearing layer structure as claimed in claim 1, is characterized in that, the working face of mining machine and mining cutter arranges tungsten carbide particle wearing layer.
10. the application of tungsten carbide particle wearing layer structure as claimed in claim 1, is characterized in that, the working face of rotary drilling rig drilling tool arranges tungsten carbide particle wearing layer; The working face of pavement milling machine and road milling cutter arranges tungsten carbide particle wearing layer; The working face of power shovel and bucket tooth arranges tungsten carbide particle wearing layer; The working face of bull-dozer scraper bowl and bucket tooth arranges tungsten carbide particle wearing layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410801812.6A CN104625448B (en) | 2014-12-19 | 2014-12-19 | The processing method of a kind of tungsten carbide particle wearing layer structure and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410801812.6A CN104625448B (en) | 2014-12-19 | 2014-12-19 | The processing method of a kind of tungsten carbide particle wearing layer structure and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104625448A true CN104625448A (en) | 2015-05-20 |
| CN104625448B CN104625448B (en) | 2016-06-29 |
Family
ID=53204930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410801812.6A Active CN104625448B (en) | 2014-12-19 | 2014-12-19 | The processing method of a kind of tungsten carbide particle wearing layer structure and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104625448B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975861A (en) * | 2016-01-19 | 2017-07-25 | 姜文辉 | A kind of hard material of tungsten carbide particle containing clad and preparation method thereof |
| CN107088693A (en) * | 2016-08-08 | 2017-08-25 | 温州宝通机械制造有限公司 | A kind of alloying pellet bead-welding technology |
| CN107447214A (en) * | 2017-08-11 | 2017-12-08 | 江苏中科大港激光科技有限公司 | A kind of laser diffusion alloy method of rotary digging tooth denticle surface peening |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04116382A (en) * | 1990-09-07 | 1992-04-16 | Konica Corp | Heating furnace |
| CN1081403A (en) * | 1992-07-16 | 1994-02-02 | 机械电子工业部哈尔滨焊接研究所 | The anti wearing block with cladded abrasion-resistant metal layer manufacture method |
| CN101338428A (en) * | 2008-08-07 | 2009-01-07 | 沈阳大陆激光成套设备有限公司 | Strengthen process for pick head by laser fusing and coating wear-resistant coating |
| CN103273168A (en) * | 2013-04-25 | 2013-09-04 | 常州富通焊业有限公司 | Tungsten carbide suspended bead welding method and device |
| CN103670430A (en) * | 2013-11-29 | 2014-03-26 | 北京交通大学 | Improving method for shield cutters |
| CN103737273A (en) * | 2013-12-31 | 2014-04-23 | 武汉团结点金激光科技有限公司 | Manufacturing technology of novel hobbing cutter with laser cladding WC wear-resistant coating |
-
2014
- 2014-12-19 CN CN201410801812.6A patent/CN104625448B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04116382A (en) * | 1990-09-07 | 1992-04-16 | Konica Corp | Heating furnace |
| CN1081403A (en) * | 1992-07-16 | 1994-02-02 | 机械电子工业部哈尔滨焊接研究所 | The anti wearing block with cladded abrasion-resistant metal layer manufacture method |
| CN101338428A (en) * | 2008-08-07 | 2009-01-07 | 沈阳大陆激光成套设备有限公司 | Strengthen process for pick head by laser fusing and coating wear-resistant coating |
| CN103273168A (en) * | 2013-04-25 | 2013-09-04 | 常州富通焊业有限公司 | Tungsten carbide suspended bead welding method and device |
| CN103670430A (en) * | 2013-11-29 | 2014-03-26 | 北京交通大学 | Improving method for shield cutters |
| CN103737273A (en) * | 2013-12-31 | 2014-04-23 | 武汉团结点金激光科技有限公司 | Manufacturing technology of novel hobbing cutter with laser cladding WC wear-resistant coating |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975861A (en) * | 2016-01-19 | 2017-07-25 | 姜文辉 | A kind of hard material of tungsten carbide particle containing clad and preparation method thereof |
| CN106975861B (en) * | 2016-01-19 | 2019-07-12 | 姜文辉 | A kind of hard material of tungsten carbide particle and preparation method thereof containing clad |
| CN107088693A (en) * | 2016-08-08 | 2017-08-25 | 温州宝通机械制造有限公司 | A kind of alloying pellet bead-welding technology |
| CN107447214A (en) * | 2017-08-11 | 2017-12-08 | 江苏中科大港激光科技有限公司 | A kind of laser diffusion alloy method of rotary digging tooth denticle surface peening |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104625448B (en) | 2016-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9481057B2 (en) | Method for applying hardfacing to a matrix substrate of a drill bit | |
| CN104625448B (en) | The processing method of a kind of tungsten carbide particle wearing layer structure and application | |
| CN201241709Y (en) | Scraper for shield machine | |
| CN112431601A (en) | Shield cutter head suitable for soft and hard composite stratum and tunneling method | |
| CN102392656B (en) | Reinforced serrated knife with flat head | |
| CN102943676A (en) | Concrete cutting advanced cutter for shield tunneling machine | |
| CN203669878U (en) | Diamond cutter for shield tunneling machine | |
| CN101660081B (en) | Sparkless hard alloy particle powder material special for conical bit drill | |
| CN204476411U (en) | A kind of novel wear resistant pick | |
| CN204476418U (en) | Novel wear resistant TBM hob | |
| CN201521248U (en) | Impregnated diamond bit with protective steel body | |
| CN109899079A (en) | The TBM cutterhead for having PDC drill bit auxiliary rock | |
| CN105114087A (en) | Cutter head of shield tunneling machine | |
| CN102086768A (en) | Cutting blade structure of shield machine | |
| CN204476417U (en) | Novel wear resistant shield cutter | |
| CN209875157U (en) | TBM cutter head with PDC drill bit for assisting rock breaking | |
| CN205025468U (en) | Cutter disc for shield tunneling machine | |
| CN212743890U (en) | Novel geotechnical engineering is with spouting drill bit soon | |
| CN211342922U (en) | High-pressure water jet side cutter and hydraulic-mechanical combined rock breaking and trapped-escaping TBM cutter head | |
| CN209875158U (en) | TBM cutter head carrying hard alloy blades | |
| CN113653500A (en) | Method for reducing abrasion of edge hob | |
| CN113278789A (en) | Shield tunneling machine tool apron under complex spring domain condition and manufacturing method | |
| CN207813619U (en) | A kind of combination cutter ring of disc cutter for rock tunnel(ling) machine | |
| CN201857973U (en) | Cutter of shield machine | |
| CN211144495U (en) | Hob ring for preventing hard alloy column from twisting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Machining method and application of tungsten carbide particle wear-resistant layer structure Effective date of registration: 20170327 Granted publication date: 20160629 Pledgee: Bank of Beijing Limited by Share Ltd. Liaocheng branch Pledgor: SOUTHERN ENGINEERING SERVICES Pty Ltd. Registration number: 2017370000032 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190202 Granted publication date: 20160629 Pledgee: Bank of Beijing Limited by Share Ltd. Liaocheng branch Pledgor: SOUTHERN ENGINEERING SERVICES Pty Ltd. Registration number: 2017370000032 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Machining method and application of tungsten carbide particle wear-resistant layer structure Effective date of registration: 20200429 Granted publication date: 20160629 Pledgee: Huaxia Bank Limited by Share Ltd. Liaocheng Dongchang Branch Pledgor: SOUTHERN ENGINEERING SERVICES Pty Ltd. Registration number: Y2020980001937 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210414 Granted publication date: 20160629 Pledgee: Huaxia Bank Limited by Share Ltd. Liaocheng Dongchang Branch Pledgor: SOUTHERN ENGINEERING SERVICES Pty Ltd. Registration number: Y2020980001937 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Processing method and application of wear resistant layer structure of tungsten carbide particles Effective date of registration: 20210416 Granted publication date: 20160629 Pledgee: Huaxia Bank Limited by Share Ltd. Liaocheng Dongchang Branch Pledgor: SOUTHERN ENGINEERING SERVICES Pty Ltd. Registration number: Y2021980002721 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220414 Granted publication date: 20160629 Pledgee: Huaxia Bank Limited by Share Ltd. Liaocheng Dongchang Branch Pledgor: SOUTHERN ENGINEERING SERVICES Pty Ltd. Registration number: Y2021980002721 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A processing method and application of tungsten carbide particle wear-resistant layer structure Effective date of registration: 20220422 Granted publication date: 20160629 Pledgee: Huaxia Bank Limited by Share Ltd. Liaocheng Dongchang Branch Pledgor: SOUTHERN ENGINEERING SERVICES Pty Ltd. Registration number: Y2022980004524 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230412 Granted publication date: 20160629 Pledgee: Huaxia Bank Limited by Share Ltd. Liaocheng Dongchang Branch Pledgor: SOUTHERN ENGINEERING SERVICES Pty Ltd. Registration number: Y2022980004524 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Processing method and application of a tungsten carbide particle wear-resistant layer structure Effective date of registration: 20230417 Granted publication date: 20160629 Pledgee: Huaxia Bank Limited by Share Ltd. Liaocheng Dongchang Branch Pledgor: SOUTHERN ENGINEERING SERVICES Pty Ltd. Registration number: Y2023980038061 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20160629 Pledgee: Huaxia Bank Limited by Share Ltd. Liaocheng Dongchang Branch Pledgor: SOUTHERN ENGINEERING SERVICES Pty Ltd. Registration number: Y2023980038061 |