CN104611695A - Method for strengthening extruder screw by using laser - Google Patents
Method for strengthening extruder screw by using laser Download PDFInfo
- Publication number
- CN104611695A CN104611695A CN201510048415.0A CN201510048415A CN104611695A CN 104611695 A CN104611695 A CN 104611695A CN 201510048415 A CN201510048415 A CN 201510048415A CN 104611695 A CN104611695 A CN 104611695A
- Authority
- CN
- China
- Prior art keywords
- laser
- screw
- extruder screw
- thread
- light source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000005728 strengthening Methods 0.000 title claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 23
- 239000011248 coating agent Substances 0.000 claims abstract description 22
- 238000005253 cladding Methods 0.000 claims description 21
- 230000033001 locomotion Effects 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 12
- 230000008018 melting Effects 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 229910045601 alloy Inorganic materials 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 9
- 239000013307 optical fiber Substances 0.000 claims description 4
- 241000692569 Stylephorus chordatus Species 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000008450 motivation Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000005238 degreasing Methods 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 6
- 238000004372 laser cladding Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000007712 rapid solidification Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a method for strengthening an extruder screw by using laser. The method for strengthening the extruder screw by using laser comprises the following steps: (1) processing the surface of a screw; (2) fixing an extruder screw; (3) controlling a laser light source; (4) performing molten covering on a screw groove; (5) repairing a coating; and (6) detecting. On the premise of greatly increasing the service life of the extruder screw, the method for strengthening the extruder screw by using laser can shorten the process time of the screw and improve the work efficiency, besides the method is simple in operation, strong in controllability and saves the production cost of the screw.
Description
Technical field
The present invention relates to a kind of method of laser reinforcing extruder screw, belong to technical field of laser processing.
Background technology
Extruder screw is the core component of forcing machine, is mainly used in pushing and extruding various shaping raw material.Extrusion equipment is when processing different hardness, temperature or corrosive raw materials, and long-play can make screw surface appearance abrasion and corrosion in various degree, and surface size loses precision, can not normally mate barrel and extrude, thus extrusion efficiency and Quality Down.For ensureing the wear resisting property of screw rod, classic screw production technology generally selects high-speed tool steel substrate, and carries out intensive treatment on surface.Common surface strengthening technology has plating, laser quenching, thermospray, built-up welding etc.Laser melting coating, as a kind of new sufacing, has the competitive edge of its uniqueness in the surface strengthening and reparation of screw rod.
Laser melting and coating technique is a kind of emerging surface strengthening technology, this technology is utilized to add cladding material on screw flight surface, and utilize the laser of high-energy-density to make it melt together with screw thread base material, and rapid solidification crystallization forms high hardness spray coating, thus lifting-bolt self performance.In the actual course of processing, laser melting and coating technique is popularized in the impaired reparation of screw rod, but be not used widely in the manufacturing of screw rod, its key reason is mainly due to laser cladding powder powder material and laser melting and coating process problem, large-area laser strengthening screw rod makes clad layer surface occur fracture, cladding coating very easily comes off, and comprehensive cladding efficiency is on the low side, limits the practical application of this technology in screw rod production field.Therefore the screw rod seeking a kind of stability and high efficiency produces the target coordinating the method for laser reinforcing to become this area research personnel always to pursue.
Summary of the invention
For above problem, the object of the present invention is to provide a kind of method of laser reinforcing extruder screw, the method makes laser beam act in screw flight groove after utilizing high power laser line focus mirror to focus on, utilize paraxonic powder-feeding mouth that powder is delivered to laser spot place, rotary screw and mobile laser head simultaneously, ensures that laser carries out cladding in screw flight groove.
Technical scheme of the present invention is achieved in the following ways: a kind of method of laser reinforcing extruder screw, comprises the following steps: 1) thread surface process; 2) fixing extruder screw; 3) LASER Light Source is controlled; 4) thread groove cladding; 5) reparation; 6) detect; It is characterized in that:
1), thread surface process: the process such as degreasing and rust removal are carried out to the thread groove surface of extruder screw;
2), fixing extruder screw: extruder screw one end is clipped on chuck, and tail end uses top jack-up, makes it fix, and drives chuck to rotate with servomotor, regulates chuck to ensure extruder screw concentricity;
Described servomotor is 45W, measures extruder screw concentricity with dial gauge and gauge stand.
3), control LASER Light Source: laser apparatus is a kind of solid statelaser of Optical Fiber Transmission, utilize mechanical arm to control light source and move, cladding layer powder delivered to laser spot place by paraxonic powder-feeding mouth and in screw flight groove, namely do linear uniform motion carry out cladding;
Described cladding layer powder adopts Ni-based WC powdered alloy, and powdered alloy is mixed with the strengthening phase particle WC of 40% ~ 60%, and alloy hardening layer width (4 ~ 6) mm, thickness is (1.4 ~ 1.6) mm, and hardness is 60 ~ 65HRC.
Described Ni-based WC powdered alloy chemical composition is: 40%T-Ni60A(w (C) <1.1%, w (Si) <5%, w (B) < 4.5%, w (Cr) <20%, w (Fe) <5%, Ni:bal)+40% ~ 75%WC mixing.
4), thread groove cladding: utilize servomotor to drive chuck to rotate, act on extruder screw screw thread by 6*2 integral mirror, make LASER Light Source translational motion simultaneously, ensure that whole process carries out laser melting coating in screw flight groove, the power of laser is 1300 ~ 1500W, during laser melting coating, sweep velocity is 250 ~ 500mm/min, laser focal is 200mm, and cladding layer powder mass flow is 30 ~ 60g/min;
5), reparation: laser melting coating complete together after, check whether coating reaches width, thickness requirement, as screw thread does not reach specified width, which width, at screw thread tail end along the direction vertical with laser scanning adjustment motivation mechanical arm, miles of relative movement is 50% ~ 80% of spot diameter, rotary chuck in the other direction, LASER Light Source is to starting point direction translational motion simultaneously;
6), detect: whether detection coat-thickness and width reach requirement, if do not had, repeating step 2)-4), until coating reaches expection requirement.
The present invention, be greatly delayed common screw impaired after reparation and replacing construction, under the early stage of improving screw performance, extend work-ing life of screw rod, high-quality hard alloy coating can be obtained with laser under high efficiency condition to its surface strengthening.
Accompanying drawing explanation
Fig. 1 thinks the device schematic diagram of a kind of laser reinforcing extruder screw method of the present invention.
Embodiment
Embodiment 1
Adopt the method for high power laser cladding to prepare tungsten carbide of nickel-base coating in extruder screw thread surface, this coating widths is 6mm, and thickness is 1.5mm.
The implementation process of the present embodiment as shown in Figure 1.
1, adopt thread groove 7 surface of industrial spirit to extruder screw of concentration 99% to carry out wiping to deoil.
2, extruder screw 4 one end is clipped on chuck 1, and tail end, with top 2 jack-up, makes it fix, and drives chuck to rotate with 45W servomotor 3, regulates chuck, ensure screw rod concentricity with dial gauge and gauge stand.
3, a branch of laser sent by the solid statelaser of Optical Fiber Transmission transmits through optical fiber 8, laser head is fixed on mechanical arm 5, (focal length is 200mm to line focus lens, defocusing amount is+10mm) focus on after, laser circular light spot is made to change square focus spot into by 6*2 integral mirror 9(, square focus spot long and the wide 6mm of being respectively, 2mm) change after act on extruder screw screw thread, laser power is set to 1300 ~ 1500W, and spot center is alignd with screw flight groove center.Control laser scanning speed and coordinating between chuck speed of rotation, can rationally finely tune laser straight linear velocity in operational process, guarantee that whole laser cladding process carries out in screw flight groove.
4, utilize paraxonic powder-feeding mouth 6 that powder is delivered to focus place, setting mechanical arm 5 and chuck motion speed, ensure that LASER Light Source does linear uniform motion in thread groove in whole laser cladding process; Laser scanning speed is 250 ~ 500mm/min, powder mass flow is 60 ~ 80g/min, cladding layer rapid solidification crystallization form coating, the chemical composition of tungsten carbide of nickel-base powder is 40%T-Ni60A(w (C) <1.1%, w (Si) <5%, w (B) < 4.5%, w (Cr) <20%, w (Fe) <5%, Ni:bal)+50%WC mixing, its granularity is 45 ~ 109 μm.
5, screw thread cladding completes together, check whether coating reaches and its width, thickness requirement, if do not had, at screw thread tail end along the direction vertical with laser scanning adjustment motivation mechanical arm 5, miles of relative movement is 50% ~ 80% of spot diameter, in the other direction rotary chuck, LASER Light Source is to starting point direction translational motion simultaneously, ensure that LASER Light Source is in extruder screw thread groove in whole laser cladding process, repeat above-mentioned steps, until coating precision reaches requirement.
6, cladding terminates its top coat of rear observation without dropping situations, flawless after flaw detection.Metallographical cutter is adopted to get aliquot, carry out sanding and polishing, to dry up with washes of absolute alcohol, its hardness is measured under DHV-1000Z type digital display micro Vickers, screw thread cladding layer microhardness improves about 2 times compared with screw rod base material, improves a lot by this method processing extruder screw performance compared with classic screw product.
The present invention, 1, solve the shortcomings such as extruder screw is fragile, duration of service is short, substantially prolongs the work-ing life of screw rod; 2, screw thread cladding coating dense structure, pore-free and crackle, have the feature such as ultrahigh hardness and wear resistance, higher than common screw performance 3 ~ 5 times; 3, workable, step is simple, greatly can increase work efficiency, have a wide range of applications potentiality in screw rod manufacturing.
Claims (4)
1. a method for laser reinforcing extruder screw, comprises the following steps: 1) thread surface process; 2) fixing extruder screw; 3) LASER Light Source is controlled; 4) thread groove cladding; 5) reparation; 6) detect; It is characterized in that:
1), thread surface process: the process such as degreasing and rust removal are carried out to the thread groove surface of extruder screw;
2), fixing extruder screw: extruder screw one end is clipped on chuck, and tail end uses top jack-up, makes it fix, and drives chuck to rotate with servomotor, regulates chuck to ensure extruder screw concentricity;
3), control LASER Light Source: laser apparatus is a kind of solid statelaser of Optical Fiber Transmission, utilize mechanical arm to control light source and move, cladding layer powder delivered to laser spot place by paraxonic powder-feeding mouth and in screw flight groove, namely do linear uniform motion carry out cladding;
4), thread groove cladding: utilize servomotor to drive chuck to rotate, act on extruder screw screw thread after being changed by 6*2 integral mirror, make LASER Light Source translational motion simultaneously, ensure that whole process carries out laser melting coating in screw flight groove, the power of laser is 1300 ~ 1500W, during laser melting coating, sweep velocity is 250 ~ 500mm/min, laser focal is 200mm, and cladding layer powder mass flow is 30 ~ 60g/min;
5), reparation: laser melting coating complete together after, check whether coating reaches width, thickness requirement, as screw thread does not reach specified width, which width, at screw thread tail end along the direction vertical with laser scanning adjustment motivation mechanical arm, miles of relative movement is 50% ~ 80% of spot diameter, rotary chuck in the other direction, LASER Light Source is to starting point direction translational motion simultaneously;
6), detect: whether detection coat-thickness and width reach requirement, if do not had, repeating step 2)-4), until coating reaches expection requirement.
2. the method for a kind of laser reinforcing extruder screw according to claim 1, is characterized in that: described step 2) in, servomotor is 45W, measures extruder screw concentricity with dial gauge and gauge stand.
3. the method for a kind of laser reinforcing extruder screw according to claim 1, it is characterized in that: the cladding layer powder in described step 3) adopts Ni-based WC powdered alloy, powdered alloy is mixed with the strengthening phase particle WC of 40% ~ 60%, alloy hardening layer width (4 ~ 6) mm, thickness is (1.4 ~ 1.6) mm, and hardness is 60 ~ 65HRC.
4. the method for a kind of laser reinforcing extruder screw according to claim 3, is characterized in that: described Ni-based WC powdered alloy chemical composition is: 40%T-Ni60A(w (C) <1.1%, w (Si) <5%, w (B) < 4.5%, w (Cr) <20%, w (Fe) <5%, Ni:bal)+40% ~ 75%WC mixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510048415.0A CN104611695A (en) | 2015-01-30 | 2015-01-30 | Method for strengthening extruder screw by using laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510048415.0A CN104611695A (en) | 2015-01-30 | 2015-01-30 | Method for strengthening extruder screw by using laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104611695A true CN104611695A (en) | 2015-05-13 |
Family
ID=53146332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510048415.0A Pending CN104611695A (en) | 2015-01-30 | 2015-01-30 | Method for strengthening extruder screw by using laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104611695A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555184A (en) * | 2015-09-24 | 2017-04-05 | 沈阳大陆激光技术有限公司 | A kind of renovation technique of building block system screw rod |
| CN109136518A (en) * | 2018-08-20 | 2019-01-04 | 南通大学 | A kind of maritime platform heavy-duty gear surface laser alloyage process |
| CN111926326A (en) * | 2020-08-28 | 2020-11-13 | 燕山大学 | A laser repair method for precision gear shaft bearing position to eliminate axial stress |
| CN116288333A (en) * | 2023-02-25 | 2023-06-23 | 浙江栋斌橡塑螺杆有限公司 | Laser cladding method for manufacturing cladding layer on side surface of screw rib of screw |
-
2015
- 2015-01-30 CN CN201510048415.0A patent/CN104611695A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555184A (en) * | 2015-09-24 | 2017-04-05 | 沈阳大陆激光技术有限公司 | A kind of renovation technique of building block system screw rod |
| CN106555184B (en) * | 2015-09-24 | 2019-03-22 | 沈阳大陆激光技术有限公司 | A kind of renovation technique of building block system screw rod |
| CN109136518A (en) * | 2018-08-20 | 2019-01-04 | 南通大学 | A kind of maritime platform heavy-duty gear surface laser alloyage process |
| CN111926326A (en) * | 2020-08-28 | 2020-11-13 | 燕山大学 | A laser repair method for precision gear shaft bearing position to eliminate axial stress |
| CN116288333A (en) * | 2023-02-25 | 2023-06-23 | 浙江栋斌橡塑螺杆有限公司 | Laser cladding method for manufacturing cladding layer on side surface of screw rib of screw |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104388929A (en) | Method for processing double-beam laser cladding tool | |
| CN108103498A (en) | A kind of ultrahigh speed laser melting and coating process | |
| CN108165982A (en) | A kind of method that superelevation rate laser melting coating prepares nickel-base antiwear anti-corrosion coating | |
| CN104611695A (en) | Method for strengthening extruder screw by using laser | |
| CN102453903B (en) | Method for preparing heat-resistant antifriction alloy coating on surface of continuous casting roller | |
| CN108220951A (en) | A kind of ultrahigh speed laser melting coating system | |
| US20100266438A1 (en) | Method and device for producing annular, rotationally symmetrical workpieces made of metal and/or ceramic powder | |
| CN108165981A (en) | A kind of method that superelevation rate laser melting coating prepares austenitic stainless steel anti-corrosion coating | |
| CN105755464B (en) | Double-deck gradient laser gain material manufacture method | |
| CN102179517A (en) | Laser-induction hybrid melting direct forming method and device | |
| CN103160825A (en) | Method for improving metal 3D (three-dimensional) printing compactness by utilizing synchronous double-beam laser | |
| CN1258323A (en) | Surface wear-resistant sintered component and manufacturing method thereof | |
| CN101384394B (en) | laser welding method | |
| CN105441935B (en) | Coaxial powder-feeding laser melting-painting method and its special apparatus for working under a kind of vacuum condition | |
| CN108559988A (en) | A kind of sucker rod manufactured using superelevation rate laser cladding method | |
| CN1259452C (en) | Method and its device for preparing cutter by laser coating composite ceramic layer | |
| CN105386035A (en) | Manufacturing process for hard facing aluminum injection molds | |
| CN103982653A (en) | Anti-corrosion wear-proof hydraulic cylinder plunger and manufacturing method thereof | |
| CN203546145U (en) | Annular cladding device for laser cladding process | |
| CN108118334A (en) | A kind of method that superelevation rate laser melting coating prepares cobalt-based wear-and corrosion-resistant coating | |
| CN101358345A (en) | Novel technological process of hybrid laser and anti-corrosive wear layer on twin-screw rod component surface of chemical extruder | |
| CN108866546A (en) | A kind of device for repairing gear for laser melting coating | |
| CN102453895B (en) | Method for preparing heat-resistant and wear-resistant alloy coatings on surfaces of hot rolling plate fine rolling conveying rollers | |
| CN102453899B (en) | Preparation method of heat-resistant and wear-resistant alloy coating on surface of wrapper roll of hot rolling sheet | |
| CN115261870B (en) | Short process composite ultra-high speed laser cladding processing method based on Hawking energy technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150513 |