CN103464964A - Repair process of screw rod compressor rotor - Google Patents
Repair process of screw rod compressor rotor Download PDFInfo
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- CN103464964A CN103464964A CN2013104437056A CN201310443705A CN103464964A CN 103464964 A CN103464964 A CN 103464964A CN 2013104437056 A CN2013104437056 A CN 2013104437056A CN 201310443705 A CN201310443705 A CN 201310443705A CN 103464964 A CN103464964 A CN 103464964A
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Abstract
The invention provides a repair process of a screw rod compressor rotor. The repair process comprises the following processing steps of (a) rotor surface pretreatment, (b) laser cladding processing, (c) mechanical processing and (d) rotor detection. The invention discloses the repair process of the screw rod compressor rotor. The repair process has the advantages that the implementation is simple and convenient, the repair cost is low, the screw rod compressor rotor treated by the repair process has higher intensity and better surface corrosion resistance and wear resistance, in addition, the rotor gap is small, and the surface is smooth and cannot be easily contaminated.
Description
Technical field
The present invention relates to a kind of compressor, relate in particular to a kind of renovation technique of rotor of helical lobe compressor, belong to the Compressor Technology field.
Background technology
Helical-lobe compressor, with the advantage of its few easy workout part, compact conformation, smooth running, a series of uniquenesses such as the life-span is long, functional reliability is high and efficiency is high, is widely used in air force, refrigeration and various technological process.Rotor is the core part of this compressor, the most important thing is the design of rotor tooth form in rotor design, and its molded line is complicated, processing request is high.The reliability of helical-lobe compressor work, efficiency and noise depend on the machining accuracy of screw rotor to a great extent.
At present, the water that helical-lobe compressor produces in various technological processes and carbon dioxide can form the materials such as more carbonic acid and calcium oxide, these materials easily cause burn into to wash away and the harm of wearing and tearing to screw rotor, general carbon steel rotor is used half a year, negative and positive rotor back lash reaches 8～10mm, and designing requirement is generally 0.5～0.6mm, thereby caused scrapping of rotor of helical lobe compressor, therefore helical-lobe compressor is used a period of time by often being repaired screw rotor.The existing technique that screw rotor is repaired has vibration weldering, argon arc welding, spraying, coating etc., and these traditional renovation techniques exist high cost, technical process thermal stress and thermal deformation, surface easily to stain need repeatedly to clear up, repair ageing low, matrix material bond strength to be difficult to the defects such as assurance.
Summary of the invention
For the demand, the invention provides a kind of renovation technique of rotor of helical lobe compressor, this renovation technique is easy to implement, rehabilitation expense is low, rotor of helical lobe compressor after this renovation technique is processed not only has higher intensity and corrosion resistance of surface, wearability preferably, and rotor clearance is little, any surface finish is difficult for staining.
A kind of renovation technique of rotor of helical lobe compressor, described renovation technique comprises following procedure of processing: a) rotor surface pretreatment, b) laser melting coating processing, c) machining, d) rotor detects.
In a preferred embodiment of the present invention, in described step a), the operation that the rotor surface pretreatment comprises has: cleaning polishing, rough turn processing, defect detecting test and surface are clean processes.
In a preferred embodiment of the present invention, in described step b), laser melting coating processing comprises the steps: 1) configuration laser melting coating metal powder material; 2) formulate laser cladding technological parameter; 3) laser melting coating processing.
In a preferred embodiment of the present invention, described laser cladding technological parameter comprises: cladding thickness 0.6mm, cladding power 1.8kW, laser spot diameter 2.5mm, laser scanning speed 12mm/s.
In a preferred embodiment of the present invention, in described step c), the operation that machining comprises has: the processing of the turning processing at processing, negative and positive rotary piston sealing ring and the shape face top of rotor shape line and rotor helical-screw shape face top seal line, the car of negative and positive rotor diameter of axle mill, male helical rotors shape face to grinding and polishing.
The present invention has disclosed a kind of renovation technique of rotor of helical lobe compressor, this renovation technique is easy to implement, rehabilitation expense is low, rotor of helical lobe compressor after this renovation technique is processed not only has higher intensity and corrosion resistance of surface, wearability preferably, and rotor clearance is little, any surface finish is difficult for staining.
The accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the process figure of the renovation technique of embodiment of the present invention rotor of helical lobe compressor.
The specific embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
Fig. 1 is the process figure of the renovation technique of embodiment of the present invention rotor of helical lobe compressor; This renovation technique comprises following procedure of processing: a) rotor surface pretreatment, and b) laser melting coating processing, c) machining, d) rotor detects.
Embodiment
Concrete implementation step is as follows:
A) rotor surface pretreatment, its detailed process is: at first negative and positive rotor body surface corrosion fatigue layer, spirality face and end face corrosion part are cleared up to grinding process, remove fatigue layer; Then according to size and diameter of axle surface damage situation, the negative and positive rotor supports diameter of axle, the synchromesh gear diameter of axle, the sealing diameter of axle are carried out to rough turn processing; Then rotor is carried out to comprehensive nondestructive flaw detection examination; Rust cleaning is clean to be processed finally to select scavenger specially to be removed contamination to rotor surface.
B) laser melting coating processing, laser melting coating processing comprises the steps: 1) configuration laser melting coating metal powder material; According to composition and the actual condition of rotor, laser melting coating metal powder material composition and the quality proportioning of configuration are: manganese 55%, chromium 15%, nickel 13%, copper 17%; This laser melting coating metal powder material is compared with the rotor raw material, there is excellent non-oxidizability, corrosion resistance, wearability and structure stability, there is the mechanical performance that meets the workpiece instructions for use after cladding, with matrix material, bond strength preferably and desirable metallographic structure are arranged.2) formulate laser cladding technological parameter; According to the size to be processed of rotor, special-purpose laser melting coating metal powder material, the laser cladding technological parameter of formulation is: cladding thickness 0.6mm, cladding power 1.8kW, laser spot diameter 2.5mm, laser scanning speed 12mm/s.3) laser melting coating processing, this process technology is exactly the characteristics of utilizing the laser beam focus energy high, in moment, that the rotor matrix surface is micro-molten, make the metal alloy fusing identical or close with matrix material of the preset cladding top layer of injured surface simultaneously, obtain the fine and close coating tissue that becomes metallurgical binding with matrix; Cladding is worked into and requires size and leave enough follow-up machine-finish allowances, complete monitoring sampling observation quality.
C) machining, mechanical processing process is: at first, the rotor shape line coordinates value input Four-axis NC Welding lathe calculated, write procedure, adopt ball cutter to realize the processing of rotor shape line and rotor helical-screw shape face top seal line; Next utilizes Digit Control Machine Tool to carry out turning processing to negative and positive rotor both sides end face sealing ring and shape face top; Again the negative and positive rotor diameter of axle is carried out to the processing of car mill simultaneously; Finally on special tool is shelved, male helical rotors shape face is carried out grinding and polishing, guarantee that the working face of negative and positive rotor and the gap of working face, non-working surface and non-working surface reach respectively 0.35～0.4mm.
D) rotor detects, and after rotor mechanical machines, rotor is carried out to physical dimension, form and position tolerance, nondestructive inspection detection, and load onto the gap of adjusting the negative and positive screw rotor special-purpose inspection man, and make matching mark, adjusts the gap of synchromesh gear simultaneously.After reparation, negative and positive rotor radial bearing clearance is 0.18～0.23mm, and the engagement total backlash of rotor is 0.7～0.9mm, and the single face gap is 0.35～0.4mm, and the gap of rotor and housing is 0.25～0.31mm, and the gap of synchromesh gear is 0.05～0.07mm.
The present invention has disclosed a kind of renovation technique of rotor of helical lobe compressor, this renovation technique is easy to implement, rehabilitation expense is low, rotor of helical lobe compressor after this renovation technique is processed not only has higher intensity and corrosion resistance of surface, wearability preferably, and rotor clearance is little, any surface finish is difficult for staining.
The above; it is only the specific embodiment of the present invention; but protection scope of the present invention is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the present invention; the variation that can expect without creative work or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (5)
1. the renovation technique of a rotor of helical lobe compressor, is characterized in that, described renovation technique comprises following procedure of processing: a) rotor surface pretreatment, and b) laser melting coating processing, c) machining, d) rotor detects.
2. the renovation technique of rotor of helical lobe compressor according to claim 1, is characterized in that, in described step a), the operation that the rotor surface pretreatment comprises has: cleaning polishing, rough turn processing, defect detecting test and surface are clean processes.
3. the renovation technique of rotor of helical lobe compressor according to claim 1, is characterized in that, in described step b), laser melting coating processing comprises the steps: 1) configuration laser melting coating metal powder material; 2) formulate laser cladding technological parameter; 3) laser melting coating processing.
4. the renovation technique of rotor of helical lobe compressor according to claim 3, is characterized in that, described laser cladding technological parameter comprises: cladding thickness 0.6mm, cladding power 1.8kW, laser spot diameter 2.5mm, laser scanning speed 12mm/s.
5. the renovation technique of rotor of helical lobe compressor according to claim 1, it is characterized in that, in described step c), the operation that machining comprises has: the processing of the turning processing at processing, negative and positive rotary piston sealing ring and the shape face top of rotor shape line and rotor helical-screw shape face top seal line, the car of negative and positive rotor diameter of axle mill, male helical rotors shape face to grinding and polishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104437056A CN103464964A (en) | 2013-09-26 | 2013-09-26 | Repair process of screw rod compressor rotor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104437056A CN103464964A (en) | 2013-09-26 | 2013-09-26 | Repair process of screw rod compressor rotor |
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| CN103464964A true CN103464964A (en) | 2013-12-25 |
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| CN2013104437056A Pending CN103464964A (en) | 2013-09-26 | 2013-09-26 | Repair process of screw rod compressor rotor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104708265A (en) * | 2013-12-12 | 2015-06-17 | 铜陵市永生机电制造有限责任公司 | Drilling chuck correcting method |
| CN109227029A (en) * | 2018-09-04 | 2019-01-18 | 洛阳清科激光技术有限公司 | Field repairing method for wind power plant bearing |
| CN109570901A (en) * | 2019-01-23 | 2019-04-05 | 耿立朋 | A kind of mixer sealing ring repair technology |
| CN109759772A (en) * | 2019-01-16 | 2019-05-17 | 燕山大学 | A kind of fast repairing method with helicla flute Continuous Casting Rolls |
| CN116175081A (en) * | 2023-04-27 | 2023-05-30 | 中国机械总院集团宁波智能机床研究院有限公司 | Worn lead screw repairing device and method for applying same |
Citations (5)
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| CN1674408A (en) * | 2004-03-26 | 2005-09-28 | 沈阳大陆激光技术有限公司 | Electric power generator, steam turbine rotor spindle repaired by laser and repairing method thereof |
| CN1887505A (en) * | 2005-06-30 | 2007-01-03 | 沈阳大陆激光技术有限公司 | Screw rotor repairing process |
| CN1990169A (en) * | 2005-12-26 | 2007-07-04 | 沈阳大陆激光技术有限公司 | Renovation technique of steam turbine rotor shaft fracture |
| CN101376971A (en) * | 2007-08-31 | 2009-03-04 | 通用电气公司 | Method of repairing nickel-based alloy articles |
| US20090274550A1 (en) * | 2006-03-09 | 2009-11-05 | Reinhold Meier | Gas turbine components and method for machining gas turbine components |
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2013
- 2013-09-26 CN CN2013104437056A patent/CN103464964A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1674408A (en) * | 2004-03-26 | 2005-09-28 | 沈阳大陆激光技术有限公司 | Electric power generator, steam turbine rotor spindle repaired by laser and repairing method thereof |
| CN1887505A (en) * | 2005-06-30 | 2007-01-03 | 沈阳大陆激光技术有限公司 | Screw rotor repairing process |
| CN1990169A (en) * | 2005-12-26 | 2007-07-04 | 沈阳大陆激光技术有限公司 | Renovation technique of steam turbine rotor shaft fracture |
| US20090274550A1 (en) * | 2006-03-09 | 2009-11-05 | Reinhold Meier | Gas turbine components and method for machining gas turbine components |
| CN101376971A (en) * | 2007-08-31 | 2009-03-04 | 通用电气公司 | Method of repairing nickel-based alloy articles |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104708265A (en) * | 2013-12-12 | 2015-06-17 | 铜陵市永生机电制造有限责任公司 | Drilling chuck correcting method |
| CN109227029A (en) * | 2018-09-04 | 2019-01-18 | 洛阳清科激光技术有限公司 | Field repairing method for wind power plant bearing |
| CN109759772A (en) * | 2019-01-16 | 2019-05-17 | 燕山大学 | A kind of fast repairing method with helicla flute Continuous Casting Rolls |
| CN109570901A (en) * | 2019-01-23 | 2019-04-05 | 耿立朋 | A kind of mixer sealing ring repair technology |
| CN116175081A (en) * | 2023-04-27 | 2023-05-30 | 中国机械总院集团宁波智能机床研究院有限公司 | Worn lead screw repairing device and method for applying same |
| CN116175081B (en) * | 2023-04-27 | 2023-07-21 | 中国机械总院集团宁波智能机床研究院有限公司 | Worn lead screw repairing device and method for applying same |
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Application publication date: 20131225 |