CN103659200A - Blade manufacturing method and impeller including blade - Google Patents

Blade manufacturing method and impeller including blade Download PDF

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Publication number
CN103659200A
CN103659200A CN201310268238.8A CN201310268238A CN103659200A CN 103659200 A CN103659200 A CN 103659200A CN 201310268238 A CN201310268238 A CN 201310268238A CN 103659200 A CN103659200 A CN 103659200A
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CN
China
Prior art keywords
cemented carbide
blade
carbide powder
impeller
disk
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Granted
Application number
CN201310268238.8A
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Chinese (zh)
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CN103659200B (en
Inventor
申相大
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SAE HWA MACHINERY CO Ltd
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SAE HWA MACHINERY CO Ltd
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Filing date
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Publication of CN103659200A publication Critical patent/CN103659200A/en
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Publication of CN103659200B publication Critical patent/CN103659200B/en
Expired - Fee Related legal-status Critical Current
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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
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/04—Welding for other purposes than joining, e.g. built-up welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/0093—Working by laser beam, e.g. welding, cutting or boring combined with mechanical machining or metal-working covered by other subclasses than B23K
    • 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
    • B23K31/025—Connecting cutting edges or the like to tools; Attaching reinforcements to workpieces, e.g. wear-resisting zones to tableware
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/235—Preliminary treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • 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
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/001—Turbines

Abstract

The invention provides a blade manufacturing method and an impeller including a blade. The blade is provided with cemented carbide powder through surface hardening. The method includes processing a plate into a drum shape by rolling the plate into a cylindrical shape; directly hard-facing cemented carbide powder on the outer surface of the drum-shaped plate using a welding machine without the need for adding a liner to the outer surface while coating the cemented carbide powder on the outer surface of the drum-shaped plate; cutting the drum-shaped plate with the directly hard-faced cemented carbide powder to a predetermined size; and processing the plate with the directly hard-faced cemented carbide powder to manufacture a blade. Accordingly to the invention, the surfaces of a plurality of blades of the impeller used for absorbing gases containing various minute iron ore powders are coated with cemented carbide powder, so that the corrosion and the abrasion of the blade by a minute iron ore powder can be prevented and the lifetime of the impeller can be prolonged.

Description

Manufacture the method for blade and comprise the impeller of described blade
The cross reference of related application
The application advocates the priority of No. 10-2012-0095560th, 30Xiang Korea S Department of Intellectual Property files an application in August, 2012 korean patent application, and the disclosure of described korean patent application is incorporated herein in full with way of reference.
Technical field
The present invention relates to a kind of method and a kind of impeller that comprises described blade of manufacturing blade, more specifically, relate to a kind of method and a kind of impeller that comprises described blade of manufacturing the blade of impeller, wherein by blade surface directly being carried out to surface sclerosis (hard-facing), strengthen wearability, and can prevent liner cracking and partly separated.
Background technology
Referring to disclosed technology in KR0800099, air blast or impeller have the structure of bleeding with the rotation of runner or rotor conventionally.Air blast (being ventilation blower) is the device for bleeding with the rotation of runner or rotor, and is widely used in being combined with pipeline to ventilate or regulate air.
Because general air blast is to utilize mould manufacture, the method for therefore manufacturing described general air blast is very complicated, and the productive rate of described general air blast is low and need to carry out mfg. moulding die according to described general air blast.Therefore,, utilizing after mould produces described general air blast, utilize press (press) to process alar part.
Fig. 1 utilizes the cross sectional side view of the air blast that the material of two types manufactures according to general technology.Air blast 2 comprises the resin air blast 10 and metallic support disk 20 being formed by the material (respectively by resin material and metal material) of two types.Blade 12 is integrally formed to the side panel 11 of resin air blast 10 via injection moulding, and a plurality of protrudent pin 13 is outstanding from blade 12.Pin-and-hole 15 is formed on the metallic support disk 20 that is positioned at the position corresponding with protrudent pin 13.
According to above-mentioned air blast 2, when metallic support disk 20 is assembled to the protrudent pin 13 of the blade 12 being formed on air blast 2 temporarily and follows by hot pressing, metallic support disk 20 is fixed to protrudent pin 13.
Protrudent pin 13 is by hot pressing and when the shape of the shape complanation of protrudent pin 13, protrudent pin 13 complanation securing members 14.Plane securing member 14 is secured to the pin-and-hole 15 of metallic support disk 20.
Blade 12 utilizes resin material to manufacture via injection moulding as mentioned above, if but the air blast 2 that comprises blade 12 sucks the gas that comprises various iron ore micro mists, the micro mist that blade 12 can be comprised in described gas corrodes or wearing and tearing, therefore can shorten the service life of air blast 2.
In addition, due to the step of additionally carrying out forming pin-and-hole 15 on the metallic support disk 20 for support blade 12 and forming protrudent pin 13 on blade 12, so the manufacture of air blast 2 can expend the plenty of time.
In addition, referring to disclosed background technology of the present invention in KR1130632, comprise that general ventilation blower for the impeller of High Rotation Speed is greatly mainly with approximately 3, the rotation of the speed of 400rpm, so impeller bears very high centrifugal force.As shown in Figure 2, utilizing bolt B that the liner 30 that is coated with high-abrasive material is fastened to blade 12, or the edge of liner 30 is welded to (W) to blade 12, the impeller that bears described centrifugal force can be worn, and can use by the impeller of heavy wear.
May ftracture due to centrifugal force in the surface of the blade 12 of impeller, so liner 30 may be by partly separated.Therefore, the metal dish of the blade of impeller 12 can be thickeied, but in this case, exporting relevant power efficiency with motor may be deteriorated.
Summary of the invention
The invention provides a kind of method and a kind of impeller that comprises described blade of manufacturing blade, wherein, for sucking coated cemented carbide powder on the surface of the included a plurality of blades of the impeller of the gas that comprises various iron ore micro mists, in case uppermost leaf sheet corroded or wear and tear by described micro mist, thereby extend service life of impeller.
According to an aspect of the present invention, provide a kind of method of manufacturing blade, in described blade, by surface sclerosis, had cemented carbide powder, described method comprises: by coiled sheet being become to cylindric so that described plate is processed into cydariform; When described cemented carbide powder is coated to the outer surface of the described plate with described cydariform, utilize bonding machine described cemented carbide powder direct surface to be hardened to the described outer surface of the described plate with described cydariform, and need not install liner additional to described outer surface; Outer surface is cut into uniform size by the described plate of described cemented carbide powder direct surface sclerosis; And the described plate that machining cuts out is to manufacture blade.
According to a further aspect in the invention, provide a kind of impeller, it comprises: a plurality of blades, and it has coat, and the surface of described coat comprises cemented carbide powder; Spider, described a plurality of blades are installed on the both sides of described spider accordingly; The first disk, the other end that is installed on the described a plurality of blades in a side of described spider is installed on described the first disk; And corresponding to the second disk of described the first disk, the other end that is installed on the described a plurality of blades on the opposite side of described spider is installed on described the second disk.
Accompanying drawing explanation
By elaborate each exemplary embodiment of the present invention with reference to accompanying drawing, above-mentioned and other feature of the present invention and advantage will become more apparent, wherein:
Fig. 1 is the schematic diagram of general air blast;
Fig. 2 is installed on the schematic diagram on general impeller via bolt and welding by liner respectively;
Fig. 3 is that diagram is according to a kind of flow chart of manufacturing the method for blade of the embodiment of the present invention;
Fig. 4 is for schematically illustrating the schematic diagram of method shown in Fig. 3;
Fig. 5 is according to the schematic diagram of the air blast that comprises impeller of the embodiment of the present invention;
Fig. 6 is the profile of impeller shown in Fig. 5; And
Fig. 7 is the schematic diagram of the welded condition of blade shown in Fig. 5.
The specific embodiment
Hereinafter, more fully set forth with reference to the accompanying drawings the present invention, illustrate in the accompanying drawings each exemplary embodiment of the present invention.Term used herein and word can be not limited in and be interpreted as common or dictionary meaning, but can suitably define the principle of term concepts and the meaning and the concept that are interpreted as matching with one or more technical elements of the present invention based on inventor, to set forth the present invention in the good mode of most probable.
Fig. 3 is that diagram is according to a kind of flow chart of manufacturing the method for blade of the embodiment of the present invention, Fig. 4 is for schematically illustrating the schematic diagram of method shown in Fig. 3, Fig. 5 is according to the schematic diagram of the air blast that comprises impeller 200 300 of the embodiment of the present invention, Fig. 6 is the profile of impeller shown in Fig. 5 200, and Fig. 7 is the schematic diagram of the welded condition of blade shown in Fig. 5 210.
Referring to Fig. 3 and Fig. 4, described method comprises: in operation S10, plate 110 is processed into cydariform; Operation S20 in, on the outer surface that cemented carbide powder (cemented carbide powder) 112 is coated on to plate 110 in, utilize bonding machine 130 that cemented carbide powder 112 surfaces are hardened on the outer surface of plate 110; In operation S30, the plate 110 by after cemented carbide powder 112 surface sclerosis is cut into even size; And in operation S40, the plate 110 that machining cuts out is to manufacture blade 140.
In operation S10, by plate 110 being rolled into cylindric and plate 110 being processed into cydariform.For plate 110 is processed into cydariform, roller press 120 is exerted pressure to plate 110 from a side, and described cydariform is rolled and be processed to thus to the direction that plate 110 is exerted pressure along roller press 120.
In operation S20, on the outer surface that cemented carbide powder 112 is coated on to plate 110 in, use bonding machine 130 that cemented carbide powder 112 surfaces are hardened on the outer surface of the plate 110 that has been processed to cydariform in operation S10.The cemented carbide powder 112 being coated on the outer surface of plate 110 comprises iron (Fe), carbon (C), chromium (Cr), manganese (Mn), silicon (Si), molybdenum (Mo) and niobium (Nb).To set forth briefly now operation S20.Cemented carbide powder 112 is put into the storage container 132 that is arranged at bonding machine 130 1 side places, and then cemented carbide powder 112 is coated on uniform thickness from storage container 132 outer surface of plate 110, simultaneously the 134 fusing cemented carbide powders 112 of the wire electrode by bonding machine 134, and by use solder flux gas (flux gas) instantaneously blocking atmosphere so that cemented carbide powder 112 direct surface are hardened on the outer surface of plate 110.
The content ratio that is coated on the cemented carbide powder 112 on the outer surface of plate 110 is: Fe67.5%, C4.0%, Cr25.0%, Mn1.5%, Si0.5%, Mo0.6% and Nb1.0%.According to comprising the position of the impeller by the made blade 140 of processing plate 110 and the material being sucked by impeller, can make the content of described cemented carbide powder than slightly microvariations.
In operation S30, will there is described cydariform and by the plate 110 after cemented carbide powder 112 surface sclerosis, cut into even size in operation S20.Owing to can not, by being made blade 140 by the plate 110 after cemented carbide powder 112 surface sclerosis, therefore utilizing cutter unit (scheming not shown) cutting plate 110.Because cemented carbide powder 112 is hardened (coating) on the outer surface of plate 110 by surface, therefore can prevent that plate 110 from being corroded or wearing and tearing by the micro mist of iron ore.
In operation S40, the plate 110 that is applied (surface sclerosis) by cemented carbide powder 112 and be cut into even size in operation S30 is processed to manufacture blade 140.In operation S40, plate 110 is cut and follows processed to manufacture blade 140, and wherein plate 110 is to utilize cast-cutting saw, cutting machine or bonding machine (130) cut, and cemented carbide powder 142 is coated on the surface of blade 140.
According to the blade 140 of making via operation S10～S40, the cemented carbide powder 143 that comprises Fe, C, Cr, Mn, Si, Mo and Nb is directly applied (surface sclerosis) on the surface of blade 140 and need not on described surface, be installed additional liner, and when comprising that the impeller of blade 140 sucks the gas of the micro mist that comprises various iron ores, can prevent that blade 140 from being corroded or wearing and tearing by described micro mist.In addition, though impeller High Rotation Speed, because cemented carbide powder 143 coated (surface sclerosis), on the surface of blade 140, therefore also can prevent that blade 140 is damaged.
By plate 110 being processed into cydariform and then cutting and process plate 110 and manufacture blade 140, can prevent that blade 140 is out of shape and strengthens the intensity of blade 140.Therefore, though impeller in blade 140 is installed on impeller after High Rotation Speed, also can prevent that blade 140 is damaged.
With reference to Fig. 5～Fig. 7, according to the impeller 200 of the embodiment of the present invention, comprise: a plurality of blades 210, spider 220, the first disk 230 and second disk 240 corresponding with the first disk 230, described a plurality of blade 210 is installed on the both sides of spider 220 accordingly, the other end that is installed on the described a plurality of blades 210 in a side of spider 220 is installed on the first disk 230, and the other end that is installed on the described a plurality of blades on the opposite side of spider 220 is installed on the second disk 240.
The coat 212 that comprises cemented carbide powder is formed on the surface (outer surface) of blade 210.The lip-deep coat 212 that is coated on blade 210 comprises Fe, C, Cr, Mn, Si, Mo and Nb, and content is than being Fe67.5%, C4.0%, Cr25.0%, Mn1.5%, Si0.5%, Mo0.6% and Nb1.0%.Described content is than omiting microvariations according to the position of impeller 200 or the material being sucked by impeller 200.
Owing to manufacturing the method for blade 210, set forth hereinbefore, therefore do not repeated at this.
Blade 210 according to this method manufacture is installed on the both sides of spider 220.Blade 210 is radially installed on regular spaces on the described both sides of spider 220 via welding W.
The first disk 230 and the second disk 240 are arranged on the both sides of spider 220 accordingly.The other end that is installed on the blade 210 in spider 220 1 sides via welding W is installed on the first disk 230, and wherein the first disk 230 is installed on described the other end of blade 210 via welding W.For the guidance unit 214 that keeps the spacing between blade 210, can be installed on a surface of blade 210, and the coat 212 that comprises cemented carbide powder also can be formed on the surface of guidance unit 214.Guidance unit 214 can be installed on blade 210 via welding W.
The second disk 240 is arranged at the position corresponding to the first disk 230.The other end that is installed on the blade 210 on the opposite side of spider 220 via welding W is installed on the second disk 240, and wherein the second disk 240 is installed on described the other end of blade 210 via welding W.
Through hole 222, the first through hole 232 and the second through hole 242 can be formed at respectively spider 220, the first disk 230 and the second disk 240 in the heart.Rotary unit R for center of rotation dish 220, the first disk 230 and the second disk 240 is inserted into through hole 222, the first through hole 232 and the second through hole 242 and rotates to drive spider 220, the first disk 230 and the second disk 240 rotations, so impeller 200 can suck the gas that comprises various iron ore micro mists.
In the above description, impeller 200 comprises blade 210, spider 220, the first disk 230 and the second disk 240, but alternatively, can omit spider 220 and blade 210 can be arranged between the first disk 230 and the second disk 240.
Air blast 300 is to make by rotary unit R being inserted in impeller 200 and being provided at the place, two ends of rotary unit R to support the support S of rotary unit R.Air blast 300 rotation and suck the gas that comprises various iron ore micro mists.
When comprising that the air blast 300 (its Leaf 210, spider 220, the first disk 230 and the second disk 240 are integrally formed via welding W) of impeller 200 sucks the gas that comprises described micro mist, because cemented carbide powder 142 applies on (surface sclerosis) blade 210 in the impeller 200 that is installed on air blast 300, therefore can prevent that blade 210 from being corroded or wearing and tearing by described micro mist.Therefore, extend the service life of impeller 200.In addition,, because the blade that is coated with cemented carbide powder 142 210 between spider 220, the first disk 230 and the second disk 240 is soldered when manufacturing impeller 200 and installs, therefore can shorten the manufacturing time of impeller 200.
According to the method for manufacture blade of the present invention and comprise that the impeller of described blade has following effect.
The first, by processing to manufacture blade to being coated with the plate of cemented carbide powder, and then the blade of manufacturing is soldered between spider, the first disk and the second disk to manufacture impeller.Therefore, can prevent from causing liner cracking and partly separated owing to liner being added to the blade of impeller.
The second, because can prevent that a plurality of blades included in impeller from being corroded and wearing and tearing by the micro mist of iron ore, so can extend the service life of impeller.
The 3rd, by the described a plurality of blades that are coated with cemented carbide powder being welded and are installed between the first disk, spider and the second disk when manufacturing impeller, can be made into the impeller that comprises the blade not corroded by iron ore, and can shorten the manufacturing time of impeller.
Although illustrate particularly and set forth the present invention with reference to each exemplary embodiment of the present invention, yet those of ordinary skill in the field should be understood that and can under the condition that does not deviate from the spirit of the present invention that defined by the claims of enclosing and scope, to form of the present invention and details, make various changes.

Claims (9)

1. manufacture a method for blade, in described blade, by surface sclerosis, had cemented carbide powder, described method comprises:
By coiled sheet being become to cylindric so that described plate is processed into cydariform;
When described cemented carbide powder is coated to the outer surface of the described plate with described cydariform, utilize bonding machine described cemented carbide powder direct surface to be hardened to the described outer surface of the described plate with described cydariform, and need not install liner additional to described outer surface;
Outer surface is cut into uniform size by the described plate of described cemented carbide powder direct surface sclerosis; And
The described plate that machining cuts out is to manufacture blade.
2. the method for claim 1, wherein, in the direct surface of described cemented carbide powder, between hardening period, the described cemented carbide powder being coated on described plate comprises: iron (Fe), carbon (C), chromium (Cr), manganese (Mn), silicon (Si), molybdenum (Mo) and niobium (Nb).
3. method as claimed in claim 2, wherein, described cemented carbide powder mixes by following content ratio: iron 67.5%, carbon 4.0%, chromium 25.0%, manganese 1.5%, silicon 0.5%, molybdenum 0.6% and niobium 1.0%.
4. the method for claim 1, wherein, the described direct surface sclerosis of described cemented carbide powder comprises: when described cemented carbide powder is coated on to the described outer surface of described plate, by the wire electrode fusing carbide alloy silk of described bonding machine and by with solder flux gas, instantaneously blocking atmosphere carries out surface sclerosis to described cemented carbide powder.
5. an impeller, it comprises:
A plurality of blades, it has coat, and the surface of described coat comprises cemented carbide powder;
Spider, described a plurality of blades are installed on the both sides of described spider accordingly;
The first disk, the other end that is installed on the described a plurality of blades in a side of described spider is installed on described the first disk; And
Corresponding to the second disk of described the first disk, the other end that is installed on the described a plurality of blades on the opposite side of described spider is installed on described the second disk.
6. impeller as claimed in claim 5, wherein, described a plurality of blades radially weld with regular interval between described the first disk, described spider and described the second disk.
7. impeller as claimed in claim 5, wherein, the described lip-deep described coat that is coated on described blade comprises: iron (Fe), carbon (C), chromium (Cr), manganese (Mn), silicon (Si), molybdenum (Mo) and niobium (Nb).
8. impeller as claimed in claim 7, wherein, the content of the described cemented carbide powder of described coat ratio is: iron 67.5%, carbon 4.0%, chromium 25.0%, manganese 1.5%, silicon 0.5%, molybdenum 0.6% and niobium 1.0%.
9. impeller as claimed in claim 5, wherein, forms described coat by the surface that utilizes bonding machine that described hard alloy powder surface is hardened to described a plurality of blades.
CN201310268238.8A 2012-08-30 2013-06-28 Manufacture the method for blade and comprise the impeller of described blade Expired - Fee Related CN103659200B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2012-0095560 2012-08-30
KR1020120095560A KR101246096B1 (en) 2012-08-30 2012-08-30 Impeller blade manufacturing methods and manufacturing blades mounted

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CN103659200A true CN103659200A (en) 2014-03-26
CN103659200B CN103659200B (en) 2016-04-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111112964A (en) * 2020-01-08 2020-05-08 长治市三耐铸业有限公司 Arc powder concentrator blade surfacing method

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Publication number Priority date Publication date Assignee Title
JPS58192999A (en) * 1982-05-06 1983-11-10 Akaishi Kinzoku Kogyo Kk Cylinder type multi-blade fan and manufacturing thereof
JPS62220238A (en) * 1986-03-19 1987-09-28 Hitachi Ltd Manufacture of partition disk for once through fan
CN1811196A (en) * 2006-03-03 2006-08-02 山东大学 Technological process of making wing type centrifugal vane whell
CN101204771A (en) * 2006-12-19 2008-06-25 王琪 Process method and special device of helical blade
CN101613860A (en) * 2009-07-22 2009-12-30 中国科学院金属研究所 Laser hard-surface coating process method of titanium alloy vane of gas turbine

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Publication number Priority date Publication date Assignee Title
JPH08254173A (en) * 1996-04-19 1996-10-01 Hitachi Ltd Water turbine and manufacture thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58192999A (en) * 1982-05-06 1983-11-10 Akaishi Kinzoku Kogyo Kk Cylinder type multi-blade fan and manufacturing thereof
JPS62220238A (en) * 1986-03-19 1987-09-28 Hitachi Ltd Manufacture of partition disk for once through fan
CN1811196A (en) * 2006-03-03 2006-08-02 山东大学 Technological process of making wing type centrifugal vane whell
CN101204771A (en) * 2006-12-19 2008-06-25 王琪 Process method and special device of helical blade
CN101613860A (en) * 2009-07-22 2009-12-30 中国科学院金属研究所 Laser hard-surface coating process method of titanium alloy vane of gas turbine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111112964A (en) * 2020-01-08 2020-05-08 长治市三耐铸业有限公司 Arc powder concentrator blade surfacing method

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CN103659200B (en) 2016-04-13

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