CN110666468A - Preparation method of wear-resistant impeller - Google Patents
Preparation method of wear-resistant impeller Download PDFInfo
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- CN110666468A CN110666468A CN201910784384.3A CN201910784384A CN110666468A CN 110666468 A CN110666468 A CN 110666468A CN 201910784384 A CN201910784384 A CN 201910784384A CN 110666468 A CN110666468 A CN 110666468A
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- Prior art keywords
- impeller
- milling
- wear
- resistant
- polishing
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- 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
- B23P15/02—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine or like blades from one piece
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a preparation method of a wear-resistant impeller, which is characterized by comprising the following preparation steps of: preparing materials, and selecting the materials required by processing the impeller according to design requirements; secondly, roughly machining by using a milling machine, roughly grooving, milling the raw materials in an integral winding and milling mode, milling from the back of the blade body to the front edge of the blade along a back arc, and then punching an inner arc for milling; finish machining, namely finish machining is respectively carried out along the back arc and the inner arc; finishing, namely finishing the front edge and the rear edge of the blade along the blade profile direction by using a ball-end milling cutter; fifthly, improving the hardness and the toughness of the impeller through quenching and tempering; polishing to improve the surface finish of the impeller; and (seventhly), coating the wear-resistant coating, and coating the wear-resistant coating on the surface of the impeller.
Description
Technical Field
The invention relates to the field of impeller processing, in particular to a preparation method of a wear-resistant impeller.
Background
A plurality of mine water pumps are used in mining, impellers are used in the water pumps, the impellers play an extremely important role in the transmission process, the blades are easily abraded due to the rotation of the impellers, the utilization rate of the abraded impellers is low, equipment is easily stopped, and the production schedule of a mine is reduced.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a preparation method of a wear-resistant impeller which is simple to prepare and good in wear resistance.
In order to achieve the above object, the present invention adopts the following technical solutions:
the preparation method of the wear-resistant impeller is characterized by comprising the following preparation steps of: preparing materials, and selecting the materials required by processing the impeller according to design requirements; secondly, roughly machining by using a milling machine, roughly grooving, milling the raw materials in an integral winding and milling mode, milling from the back of the blade body to the front edge of the blade along a back arc, and then punching an inner arc for milling; finish machining, namely finish machining is respectively carried out along the back arc and the inner arc; finishing, namely finishing the front edge and the rear edge of the blade along the blade profile direction by using a ball-end milling cutter; fifthly, improving the hardness and the toughness of the impeller through quenching and tempering; polishing to improve the surface finish of the impeller; and (seventhly), coating the wear-resistant coating, and coating the wear-resistant coating on the surface of the impeller.
Preferably, the stock in the first step (a) is prepared with a margin for pre-processing.
Preferably, a 2mm-3mm allowance is reserved during rough milling in the step (II), so that subsequent finish machining is facilitated, and the precision of the impeller is improved.
More preferably, in the step (three), a four-edge or six-edge solid cemented carbide ball end mill is used for finish milling, so that milling is facilitated.
Further preferably, in the step (six), polishing is carried out according to the requirements of different parts of the impeller on different roughness, different roughness is not needed, the polishing time is shortened, and the production efficiency is improved.
Specifically, in the step (six), the polishing machine is used for rough polishing, and fine polishing is performed on fine parts manually.
Preferably, the wear-resistant coating in the step (seven) is prepared by mixing 1-13 parts of cobalt powder, 1-8 parts of chromium powder and 80-100 parts of tungsten carbide powder to obtain mixed powder, and mixing the mixed powder with polyethylene glycol cyclic gas resin or polyacrylate and water; the part of the polyethylene glycol cyclic gas resin or polyacrylate is 100 times of the mixed powder.
The invention has the advantages that: the preparation method is simple, and the wear resistance of the impeller is effectively improved; the wear-resistant coating is coated on the surface of the impeller, so that the wear resistance of the impeller is further improved, and the service life of the blade is prolonged.
Detailed Description
The following specific examples are intended to illustrate the invention.
The first embodiment is as follows: the preparation method of the wear-resistant impeller is characterized by comprising the following preparation steps of: preparing materials, namely selecting materials required by processing the impeller according to design requirements, and reserving allowance for preprocessing during material preparation; secondly, rough machining is carried out by a milling machine, rough grooving is carried out, the raw materials are milled in an integral winding and milling mode, milling is carried out from the back of the blade body along a back arc until the front edge of the blade is milled, then an inner arc is punched for milling, and a 2mm allowance is reserved during rough milling, so that subsequent finish machining is facilitated, and the precision of the impeller is improved; finish machining, namely finish machining is respectively carried out along the back arc and the inner arc, and a four-edge or six-edge integral hard alloy ball-end milling cutter is used for finish milling, so that milling is facilitated; finishing, namely finishing the front edge and the rear edge of the blade along the blade profile direction by using a ball-end milling cutter; fifthly, improving the hardness and the toughness of the impeller through quenching and tempering; polishing, namely improving the surface smoothness of the impeller, polishing according to the requirements of different parts of the impeller on different roughness, reducing polishing time and improving production efficiency, wherein different roughness does not need different polishing, rough polishing is firstly carried out by using a polishing machine, and fine polishing is carried out on tiny parts manually; coating wear-resistant paint, namely coating the wear-resistant paint on the surface of the impeller, mixing 1 part of cobalt powder, 1 part of chromium powder and 80 parts of tungsten carbide powder to obtain mixed powder, and mixing the mixed powder with polyethylene glycol cyclic gas resin or polyacrylate and water; the part of the polyethylene glycol cyclic gas resin or polyacrylate is 100 times of the mixed powder.
Example two: the preparation method of the wear-resistant impeller is characterized by comprising the following preparation steps of: preparing materials, namely selecting materials required by processing the impeller according to design requirements, and reserving allowance for preprocessing during material preparation; secondly, rough machining is carried out by a milling machine, rough grooving is carried out, the raw materials are milled in an integral winding and milling mode, milling is carried out from the back of the blade body along a back arc until the front edge of the blade is milled, then an inner arc is punched for milling, and a 2.5mm allowance is reserved during rough milling, so that subsequent finish machining is facilitated, and the precision of the impeller is improved; finish machining, namely finish machining is respectively carried out along the back arc and the inner arc, and a four-edge or six-edge integral hard alloy ball-end milling cutter is used for finish milling, so that milling is facilitated; finishing, namely finishing the front edge and the rear edge of the blade along the blade profile direction by using a ball-end milling cutter; fifthly, improving the hardness and the toughness of the impeller through quenching and tempering; polishing, namely improving the surface smoothness of the impeller, polishing according to the requirements of different parts of the impeller on different roughness, reducing polishing time and improving production efficiency, wherein different roughness does not need different polishing, rough polishing is firstly carried out by using a polishing machine, and fine polishing is carried out on tiny parts manually; coating a wear-resistant coating on the surface of the impeller, wherein the wear-resistant coating is prepared by mixing 7 parts of cobalt powder, 4.5 parts of chromium powder and 90 parts of tungsten carbide powder to obtain mixed powder, and mixing the mixed powder with polyethylene glycol cyclic gas resin or polyacrylate and water; the part of the polyethylene glycol cyclic gas resin or polyacrylate is 100 times of the mixed powder.
Example three: the preparation method of the wear-resistant impeller is characterized by comprising the following preparation steps of: preparing materials, namely selecting materials required by processing the impeller according to design requirements, and reserving allowance for preprocessing during material preparation; secondly, rough machining is carried out by a milling machine, rough grooving is carried out, the raw materials are milled in an integral winding and milling mode, milling is carried out from the back of the blade body along a back arc until the front edge of the blade is milled, then an inner arc is punched for milling, and a 3mm allowance is reserved during rough milling, so that subsequent finish machining is facilitated, and the precision of the impeller is improved; finish machining, namely finish machining is respectively carried out along the back arc and the inner arc, and a four-edge or six-edge integral hard alloy ball-end milling cutter is used for finish milling, so that milling is facilitated; finishing, namely finishing the front edge and the rear edge of the blade along the blade profile direction by using a ball-end milling cutter; fifthly, improving the hardness and the toughness of the impeller through quenching and tempering; polishing, namely improving the surface smoothness of the impeller, polishing according to the requirements of different parts of the impeller on different roughness, reducing polishing time and improving production efficiency, wherein different roughness does not need different polishing, rough polishing is firstly carried out by using a polishing machine, and fine polishing is carried out on tiny parts manually; coating a wear-resistant coating on the surface of the impeller, wherein the wear-resistant coating is prepared by mixing 13 parts of cobalt powder, 8 parts of chromium powder and 100 parts of tungsten carbide powder to obtain mixed powder, and mixing the mixed powder with polyethylene glycol cyclic gas resin or polyacrylate and water; the part of the polyethylene glycol cyclic gas resin or polyacrylate is 100 times of the mixed powder.
The invention has the advantages that: the preparation method is simple, and the wear resistance of the impeller is effectively improved; the wear-resistant coating is coated on the surface of the impeller, so that the wear resistance of the impeller is further improved, and the service life of the blade is prolonged.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.
Claims (7)
1. The preparation method of the wear-resistant impeller is characterized by comprising the following preparation steps of: preparing materials, and selecting the materials required by processing the impeller according to design requirements; secondly, roughly machining by using a milling machine, roughly grooving, milling the raw materials in an integral winding and milling mode, milling from the back of the blade body to the front edge of the blade along a back arc, and then punching an inner arc for milling; finish machining, namely finish machining is respectively carried out along the back arc and the inner arc; finishing, namely finishing the front edge and the rear edge of the blade along the blade profile direction by using a ball-end milling cutter; fifthly, improving the hardness and the toughness of the impeller through quenching and tempering; polishing to improve the surface finish of the impeller; and (seventhly), coating the wear-resistant coating, and coating the wear-resistant coating on the surface of the impeller.
2. The method as claimed in claim 1, wherein the step (a) is performed by preparing materials with allowance for pre-processing.
3. The method for preparing a wear-resistant impeller according to claim 1, wherein a 2mm-3mm allowance is left during rough milling in the step (two).
4. The method for preparing a wear-resistant impeller according to claim 1, wherein in the step (three), a four-edge or six-edge solid carbide ball-end mill is used for finish milling.
5. The method for preparing a wear-resistant impeller according to claim 1, wherein the step (six) is carried out according to the requirement of different parts of the impeller on different roughness.
6. The method for manufacturing a wear-resistant impeller according to claim 1, wherein in the sixth step, rough polishing is performed by a polishing machine, and fine polishing is performed manually on fine parts.
7. The method for preparing a wear-resistant impeller according to claim 1, wherein in the step (VII), the wear-resistant coating is prepared by mixing 1-13 parts of cobalt powder, 1-8 parts of chromium powder and 80-100 parts of tungsten carbide powder to obtain mixed powder, and mixing the mixed powder with polyethylene glycol cyclic gas resin or polyacrylate and water; the part of the polyethylene glycol cyclic gas resin or polyacrylate is 100 times of the mixed powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910784384.3A CN110666468A (en) | 2019-08-23 | 2019-08-23 | Preparation method of wear-resistant impeller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910784384.3A CN110666468A (en) | 2019-08-23 | 2019-08-23 | Preparation method of wear-resistant impeller |
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| CN110666468A true CN110666468A (en) | 2020-01-10 |
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| CN201910784384.3A Pending CN110666468A (en) | 2019-08-23 | 2019-08-23 | Preparation method of wear-resistant impeller |
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Citations (8)
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|---|---|---|---|---|
| KR20090069963A (en) * | 2007-12-26 | 2009-07-01 | 더블유비엠과학기술 주식회사 | Method manufacturing of impeller for high pressure steam turbine |
| CN102410225A (en) * | 2011-10-17 | 2012-04-11 | 上海西工压缩机配件有限公司 | Compressor blade and preparation technology thereof |
| CN104033189A (en) * | 2014-06-27 | 2014-09-10 | 南京赛达机械制造有限公司 | Blade of steam turbine and process for machining blade |
| CN104741881A (en) * | 2015-04-21 | 2015-07-01 | 重庆江增船舶重工有限公司 | Production method of blade of compressor impeller |
| CN108546901A (en) * | 2018-05-11 | 2018-09-18 | 佛山市南海区科琎精密机械有限公司 | A kind of preparation method of abrasion proof impeller coating |
| CN108546900A (en) * | 2018-05-11 | 2018-09-18 | 佛山市南海区科琎精密机械有限公司 | A kind of preparation method of abrasion-resistance screw axis coating |
| CN108637166A (en) * | 2018-05-16 | 2018-10-12 | 安徽三环水泵有限责任公司 | A kind of preparation method of slurry pump impeller |
| CN109623294A (en) * | 2019-02-22 | 2019-04-16 | 宁国市华成金研科技有限公司 | A kind of processing method of aircraft turbine blades |
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2019
- 2019-08-23 CN CN201910784384.3A patent/CN110666468A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20090069963A (en) * | 2007-12-26 | 2009-07-01 | 더블유비엠과학기술 주식회사 | Method manufacturing of impeller for high pressure steam turbine |
| CN102410225A (en) * | 2011-10-17 | 2012-04-11 | 上海西工压缩机配件有限公司 | Compressor blade and preparation technology thereof |
| CN104033189A (en) * | 2014-06-27 | 2014-09-10 | 南京赛达机械制造有限公司 | Blade of steam turbine and process for machining blade |
| CN104741881A (en) * | 2015-04-21 | 2015-07-01 | 重庆江增船舶重工有限公司 | Production method of blade of compressor impeller |
| CN108546901A (en) * | 2018-05-11 | 2018-09-18 | 佛山市南海区科琎精密机械有限公司 | A kind of preparation method of abrasion proof impeller coating |
| CN108546900A (en) * | 2018-05-11 | 2018-09-18 | 佛山市南海区科琎精密机械有限公司 | A kind of preparation method of abrasion-resistance screw axis coating |
| CN108637166A (en) * | 2018-05-16 | 2018-10-12 | 安徽三环水泵有限责任公司 | A kind of preparation method of slurry pump impeller |
| CN109623294A (en) * | 2019-02-22 | 2019-04-16 | 宁国市华成金研科技有限公司 | A kind of processing method of aircraft turbine blades |
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Application publication date: 20200110 |
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