CN107775542A - A kind of thermal spraying shot blast machine blade and its assembly method - Google Patents
A kind of thermal spraying shot blast machine blade and its assembly method Download PDFInfo
- Publication number
- CN107775542A CN107775542A CN201711114967.2A CN201711114967A CN107775542A CN 107775542 A CN107775542 A CN 107775542A CN 201711114967 A CN201711114967 A CN 201711114967A CN 107775542 A CN107775542 A CN 107775542A
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- CN
- China
- Prior art keywords
- blade
- thermal spraying
- shot blast
- blast machine
- resistant coating
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C5/00—Devices or accessories for generating abrasive blasts
- B24C5/06—Impeller wheels; Rotor blades therefor
- B24C5/062—Rotor blades or vanes; Locking means therefor
-
- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
-
- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/129—Flame spraying
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The invention discloses a kind of thermal spraying shot blast machine blade, is related to ball blast technical field, including blade body, and blade body surface is uniformly provided with thermal spraying wear-resistant coating, and the metallographic structure of thermal spraying wear-resistant coating includes：WC phases, Co phases and Cr phases；Thermal spraying wear-resistant coating is formed by hot spray powder spraying, and the chemical composition and mass percent of hot spray powder are WC：83% 89%, Co：8% 12%, Cr：3%‑5%.The present invention reduces abrasion using thermal spraying mode, effectively extends the service life of shot blast machine blade.
Description
Technical field
The present invention relates to ball blast technical field, more particularly to a kind of thermal spraying shot blast machine blade and its assembly method.
Background technology
Shot-blasting machine is that a kind of cast using High-velocity Projectiles removes surface scab and oxide skin to reach cast member, forge piece etc.
Casting Equipment of Machine.Typically mainly it is made up of four systemses：
（1）Shot Blasting System, its core devices are impeller head, are rotated at a high speed by motor band movable vane piece, by adopting projectile casting technology to casting
Remove removing iron scale in part surface；（2）The bearing system for making casting successively run and overturn in scale removal process；（3）Ensure
The pill piece-rate system that bullet is collected, separates and transported；（4）The a large amount of dust during ball blast is collected, reduces bullet to ball blast
The dust-filtering collection system of machine abrasion.
Blade act as in impeller head：Moved in its surface by the high speed rotating band of itself ball of moving, leaf
Piece bears the huge impact of bullet in rotary course, is constantly worn, and the bullet dished out by orienting cover is accepted at blade inlet end,
Bullet is slided or rolled along blade surface.As bullet travels forward, the pressure of blade is gradually increased, bullet is due to by used
Property power effect and be pressed on blade, it is bigger closer to blade exit end inertia force.Meanwhile under the influence of centrifugal force, bullet
Ball is constantly accelerated in blade surface, is finally spilled over very high speed by the port of export, makes blade exit end by shear action
Most serious, abrasion are most fast.In addition, in the port of export, blade also mutually impacts with the largely bounce-back bullet with very high relative velocity,
The abrasion of the speeding-up blade port of export.
In summary, blade is born first at load constantly by the grinding and impact of bullet in rotary course in blade
First there is fine crack, with the continuation of abrasion, crackle gradually extends, and eventually flakes off and scraps.
The content of the invention
The present invention is directed to above-mentioned technical problem, the shortcomings that overcoming prior art, there is provided a kind of thermal spraying shot blast machine blade, adopt
Abrasion is reduced with thermal spraying mode, effectively extends the service life of shot blast machine blade.
In order to solve the above technical problems, the present invention provides a kind of thermal spraying shot blast machine blade, including blade body, blade
Body surface is uniformly provided with thermal spraying wear-resistant coating, and the metallographic structure of thermal spraying wear-resistant coating includes:WC phases, Co phases and Cr phases；
Thermal spraying wear-resistant coating is formed by hot spray powder spraying, and the chemical composition and mass percent of hot spray powder are WC:
83%-89%,Co:8%-12%, Cr:3%-5%.
Technique effect：The present invention by thermal spraying prepares wear-resistant coating, in the thermal spraying wear-resistant coating of formation disperse greatly
The hard-phase particles of amount, predominantly WC phases, the WC particle of Dispersed precipitate for thermal spraying wear-resistant coating provide very high hardness with
Good wearability.
The technical scheme that further limits of the present invention is：
Further, the chemical composition of hot spray powder and mass percent are WC:85%,Co:10%, Cr:4%, surplus is thermal jet
Other conventional phases caused by applying.
A kind of preceding thermal spraying shot blast machine blade, the spraying coating process of thermal spraying wear-resistant coating are as follows：
S1, pre-treatment is carried out to blade body, that is, polish, clean, sandblasting；
S2, with HVAF thermal spraying wear-resistant coating is made in hot spray powder.
A kind of preceding thermal spraying shot blast machine blade, step S2, carried out using SPR-3000 supersonic velocity flame plating equipments, tool
Body technology parameter is as follows：Kerosene 23L/h, oxygen 45m3/h, powder feeding carrier gas 9L/min, spray distance 380mm.
A kind of preceding thermal spraying shot blast machine blade, the manufacturing step of blade body include：
Blade body is made in T1, forging；
T2, blade body is subjected to impact test, checks the impact resistance of blade body；
T3, pass through machining control blade surface quality；
T4, blade body is carried out to carburizing and quenching, carburizing thickness is 2.0-2.2mm, quenching hardness HRC58-62.
Another object of the present invention is to provide the assembling for a kind of thermal spraying shot blast machine blade described in such scheme
Method, comprise the following steps：
G1, combo of being weighed to shot blast machine blade, 8 are one group, and every group of control of poor quality is in 5g；
G2, the blade polishing counterweight by combo, same group of leaf quality difference control is in 2g；
Whether G3, detection blade surface have crackle, impression and uneven, reject underproof blade；
G4, it is qualified after every group of immediate blade of quality is organized pair two-by-two, installed.
Further, step G4, the blade formed a team is installed by diagonal, ensures the blade wheel weight after assembling to greatest extent
The heart and axis coinciding.
The beneficial effects of the invention are as follows：
（1）The present invention uses HVAF mode, and the flying speed of spraying particle is very high, has the particle of very big kinetic energy
Enough deformations can be occurred by hitting blade body surface so that the consistency of thermal spraying wear-resistant coating, bond strength etc. are all
To increasing substantially very much；
（2）The thermal spraying wear-resistant coating of the present invention and the mechanical bond of blade body are good, without obvious hole and crackle, thermal jet
Applying wear-resistant coating has excellent wearability, so as to greatly prolong the service life of shot blast machine blade；
（3）The thermal spraying wear-resistant coating of the present invention can not only spray when shot blast machine blade uses first, can also be in ball blast
Machine blade is sprayed after being worn using a period of time, so as to effectively extend the service life of shot blast machine blade, saves material, drop
Low energy consumption, increase economic efficiency；
（4）The present invention fully takes into account diagonal leaf quality difference to the dynamically balanced shadow of blade wheel to the assembly method of shot blast machine blade
Ring, effectively improve dynamic balancing when blade rotates, reduce vibration, extend leaf longevity.
Embodiment
Embodiment 1
The present embodiment provides a kind of thermal spraying shot blast machine blade, including blade body, blade body surface even application have thermal jet
Apply wear-resistant coating.
First, the manufacturing step of blade body includes：
Blade body is made in T1, forging；
T2, blade body is subjected to impact test, checks the impact resistance of blade body；
T3, pass through machining control blade surface quality；
T4, blade body is carried out to carburizing and quenching, carburizing thickness is 2.0-2.2mm, quenching hardness HRC58-62.
2nd, the spraying coating process of thermal spraying wear-resistant coating is as follows：
S1, pre-treatment is carried out to blade body, that is, polish, clean, sandblasting；
S2, hot spray powder is made by thermal spraying wear-resistant coating, hot spraying powder using SPR-3000 supersonic velocity flame plating equipments
The chemical composition and mass percent at end are WC:83%-89%,Co:8%-12%, Cr:3%-5%；Specific process parameter is as follows：Kerosene
23L/h, oxygen 45m3/ h, powder feeding carrier gas 9L/min, spray distance 380mm.
3rd, shot blast machine blade wearability detects：
The Vickers hardness of thermal spraying wear-resistant coating and blade body is determined using MHVD-30AP Vickers, measures thermal spraying
The Vickers hardness number of wear-resistant coating is 1109.7HV, and the Vickers hardness number of blade body is 312.3HV.It follows that in leaf
Piece body spraying thermal spraying wear-resistant coating can greatly improve the hardness of shot blast machine blade, significantly improve its anti-wear performance, so as to
Extend its service life.
Embodiment 2
The present embodiment provides the assembly method of thermal spraying shot blast machine blade prepared by embodiment 1, comprises the following steps：
G1, combo of being weighed to shot blast machine blade, 8 are one group, and every group of control of poor quality is in 5g；
G2, the blade polishing counterweight by combo, same group of leaf quality difference control is in 2g；
Whether G3, detection blade surface have crackle, impression and uneven, reject underproof blade；
G4, it is qualified after every group of immediate blade of quality is organized pair two-by-two, the blade formed a team is installed by diagonal, to greatest extent
Ensure blade wheel center of gravity and axis coinciding after assembling.
To verify the improvement effect of above-mentioned assembly method, three groups of test groups are set, and first group and second group using implementation
Thermal spraying shot blast machine blade prepared by example 1, the 3rd group uses commercially available common shot blast machine blade, and first group is assembled as described above method
Assembling, second group, the 3rd group is assembled by common mode.Result of the test is：First group of shot blast machine blade service life is 96 days,
Second group of service life is 64 days, and the 3rd group of service life is 7 days.It follows that after carrying out thermal spraying to blade, thermal spraying is resistance to
Mill coating significantly improves the anti-wear performance of shot blast machine blade, and the assembly method of shot blast machine blade provided by the invention is further
The service life of blade is extended, two aspects are improved highly effective to blade wearability, the influence in life-span.Therefore, it is of the invention
The thermal spraying shot blast machine blade and its assembly method of offer can solve well existing shot blast machine blade wear no resistance, short life
The problem of, and heat spraying method can reuse after blade is using abrasion, reduce energy consumption, increase economic efficiency.
In addition to the implementation, the present invention can also have other embodiment.It is all to use equivalent substitution or equivalent transformation shape
Into technical scheme, all fall within the protection domains of application claims.
Claims (7)
1. a kind of thermal spraying shot blast machine blade, including blade body, it is characterised in that:The blade body surface is uniformly provided with heat
Spraying of wearable coating, the metallographic structure of the thermal spraying wear-resistant coating include:WC phases, Co phases and Cr phases；
The thermal spraying wear-resistant coating is formed by hot spray powder spraying, the chemical composition and quality percentage of the hot spray powder
Than for WC:83%-89%,Co:8%-12%, Cr:3%-5%.
A kind of 2. thermal spraying shot blast machine blade according to claim 1, it is characterised in that：The chemistry of the hot spray powder
Composition and mass percent are WC:85%,Co:10%, Cr:4%, surplus is other conventional phases caused by thermal spraying.
A kind of 3. thermal spraying shot blast machine blade according to claim 1, it is characterised in that：The thermal spraying wear-resistant coating
Spraying coating process is as follows：
S1, pre-treatment is carried out to blade body, that is, polish, clean, sandblasting；
S2, with HVAF thermal spraying wear-resistant coating is made in the hot spray powder.
A kind of 4. thermal spraying shot blast machine blade according to claim 3, it is characterised in that：The step S2, using SPR-
3000 supersonic velocity flame plating equipments are carried out, and specific process parameter is as follows：Kerosene 23L/h, oxygen 45m3/ h, powder feeding carrier gas 9L/
Min, spray distance 380mm.
A kind of 5. thermal spraying shot blast machine blade according to claim 1, it is characterised in that：The manufacture step of the blade body
Suddenly include：
Blade body is made in T1, forging；
T2, blade body is subjected to impact test, checks the impact resistance of blade body；
T3, pass through machining control blade surface quality；
T4, blade body is carried out to carburizing and quenching, carburizing thickness is 2.0-2.2mm, quenching hardness HRC58-62.
6. the assembly method for a kind of thermal spraying shot blast machine blade described in claim 1-5 any one, it is characterised in that：
Comprise the following steps：
G1, combo of being weighed to shot blast machine blade, 8 are one group, and every group of control of poor quality is in 5g；
G2, the blade polishing counterweight by combo, same group of leaf quality difference control is in 2g；
Whether G3, detection blade surface have crackle, impression and uneven, reject underproof blade；
G4, it is qualified after every group of immediate blade of quality is organized pair two-by-two, installed.
A kind of 7. assembly method of thermal spraying shot blast machine blade according to claim 6, it is characterised in that：The step
G4, the blade formed a team is installed by diagonal, ensure blade wheel center of gravity and axis coinciding after assembling to greatest extent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711114967.2A CN107775542A (en) | 2017-11-13 | 2017-11-13 | A kind of thermal spraying shot blast machine blade and its assembly method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711114967.2A CN107775542A (en) | 2017-11-13 | 2017-11-13 | A kind of thermal spraying shot blast machine blade and its assembly method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107775542A true CN107775542A (en) | 2018-03-09 |
Family
ID=61432983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711114967.2A Pending CN107775542A (en) | 2017-11-13 | 2017-11-13 | A kind of thermal spraying shot blast machine blade and its assembly method |
Country Status (1)
| Country | Link |
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| CN (1) | CN107775542A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109576635A (en) * | 2018-12-18 | 2019-04-05 | 郑州立佳热喷涂机械有限公司 | A kind of spraying method of the wear-resistant coating of refractory brick mould |
| CN111002227A (en) * | 2019-11-27 | 2020-04-14 | 南京钢铁股份有限公司 | Double-row shot blasting method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62113801A (en) * | 1985-11-13 | 1987-05-25 | Toshiba Corp | Turbine blade |
| CN103394880A (en) * | 2013-08-15 | 2013-11-20 | 沈阳三科水力机械制造有限公司 | Large-sized circulating pump impeller forming method through swing welding |
| CN103452914A (en) * | 2013-08-05 | 2013-12-18 | 天津机辆轨道交通装备有限责任公司 | Assembly technique for reducing dynamic balance of rotor of turbocharger |
| CN204382105U (en) * | 2014-12-23 | 2015-06-10 | 天津强森机械零部件有限公司 | A kind of blade assembly for shot-blasting machine |
| CN104988453A (en) * | 2015-06-30 | 2015-10-21 | 苏州华日金菱机械有限公司 | Composite coating thermal spraying method |
| CN105239021A (en) * | 2014-07-08 | 2016-01-13 | 南京赛达机械制造有限公司 | High-pressure-resistant turbine blade and production process thereof |
| CN105586514A (en) * | 2014-10-23 | 2016-05-18 | 无锡华冶钢铁有限公司 | Turbo machine blade machining technology with Al-Mn-Pb-Mg-Ti series high-strength aluminum alloy as material |
| CN105969946A (en) * | 2016-06-12 | 2016-09-28 | 江苏丰东热处理及表面改性工程技术研究有限公司 | Composite treatment process for impeller head blade |
-
2017
- 2017-11-13 CN CN201711114967.2A patent/CN107775542A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62113801A (en) * | 1985-11-13 | 1987-05-25 | Toshiba Corp | Turbine blade |
| CN103452914A (en) * | 2013-08-05 | 2013-12-18 | 天津机辆轨道交通装备有限责任公司 | Assembly technique for reducing dynamic balance of rotor of turbocharger |
| CN103394880A (en) * | 2013-08-15 | 2013-11-20 | 沈阳三科水力机械制造有限公司 | Large-sized circulating pump impeller forming method through swing welding |
| CN105239021A (en) * | 2014-07-08 | 2016-01-13 | 南京赛达机械制造有限公司 | High-pressure-resistant turbine blade and production process thereof |
| CN105586514A (en) * | 2014-10-23 | 2016-05-18 | 无锡华冶钢铁有限公司 | Turbo machine blade machining technology with Al-Mn-Pb-Mg-Ti series high-strength aluminum alloy as material |
| CN204382105U (en) * | 2014-12-23 | 2015-06-10 | 天津强森机械零部件有限公司 | A kind of blade assembly for shot-blasting machine |
| CN104988453A (en) * | 2015-06-30 | 2015-10-21 | 苏州华日金菱机械有限公司 | Composite coating thermal spraying method |
| CN105969946A (en) * | 2016-06-12 | 2016-09-28 | 江苏丰东热处理及表面改性工程技术研究有限公司 | Composite treatment process for impeller head blade |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109576635A (en) * | 2018-12-18 | 2019-04-05 | 郑州立佳热喷涂机械有限公司 | A kind of spraying method of the wear-resistant coating of refractory brick mould |
| CN111002227A (en) * | 2019-11-27 | 2020-04-14 | 南京钢铁股份有限公司 | Double-row shot blasting method |
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Application publication date: 20180309 |