CN107130094A - A kind of automobile connecting bar throwing pill strengthening technique - Google Patents
A kind of automobile connecting bar throwing pill strengthening technique Download PDFInfo
- Publication number
- CN107130094A CN107130094A CN201710485475.8A CN201710485475A CN107130094A CN 107130094 A CN107130094 A CN 107130094A CN 201710485475 A CN201710485475 A CN 201710485475A CN 107130094 A CN107130094 A CN 107130094A
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- China
- Prior art keywords
- automobile connecting
- connecting bar
- shot blasting
- pill
- throwing
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
- C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Factory Administration (AREA)
Abstract
The invention discloses a kind of automobile connecting bar throwing pill strengthening technique, comprise the following steps：（1）After automobile connecting bar completes high-frequency quenching shaping, then installed and be fixed on the turntable of turntable type throwing pill machine using alignment pin, close shot blast room door；（2）Start the Shot Blasting System of turntable type throwing pill machine, automobile connecting bar is with 2.5 2.8 turns/min 360 ° of rotations of rotating speed, nozzle of the pellet through impeller head is launched carries out Shot Blasting to automobile connecting bar, the 7min of Shot Blasting 5, the control of the distance between automobile connecting bar action face and impeller head nozzle is in 50 60cm during ball blast；（3）After Shot Blasting terminates, ball blast door is opened, automobile connecting rod is unloaded, throwing pill strengthening process is completed；Present invention process is simple and easy to apply, and the fatigue for improving connecting rod is slight, reduces abrasion, extends service life.
Description
Technical field
The present invention relates to a kind of metal material surface handling process, and in particular to a kind of automobile connecting bar throwing pill strengthening technique.
Background technology
Connecting rod is one of primary drive of automobile engine, and it is connected to piston and bent axle, and its effect is by the past of piston
Multiple motion is changed into the rotary motion of bent axle, and the power acted on piston is transmitted to bent axle with power output, at present in automobile
Manufacturing technology in, the requirement to the dimensional accuracy of connecting rod, form accuracy and positional precision is all very high, and connecting rod rigidity ratio
It is poor, easily it is deformed, because in manufacturing technology, the Roughing and fine machining of each major surfaces is separated, gradually reduces processing remaining
The effect of amount, cutting force and internal stress, and the deformation after processing is corrected, to reach the technical requirements of part；
Reinforcing ball blast is a kind of more universal method for improving part fatigue life, in engine manufacturing technology, in order to carry
The fatigue strength of high automobile connecting bar and reduction abrasion, reinforcing ball blast is carried out to connecting rod, but the country there is no sizing shot-blast apparatus, if
From foreign import, then need to spend wholesale fund, cost is too high, so improving throwing pill strengthening technique to reach that optimum efficiency turns into
Those skilled in the art's technical problem urgently to be resolved hurrily.
The content of the invention
The technical problems to be solved by the invention are that the shortcoming existed for above prior art proposes that a kind of automobile connects
Bar throwing pill strengthening technique, this is simple for process, and the fatigue for improving connecting rod is slight, reduces abrasion, extends service life.
The present invention solve above technical problem technical scheme be：A kind of automobile connecting bar throwing pill strengthening technique, including it is following
Step：
（1）After automobile connecting bar completes high-frequency quenching shaping, then installed using alignment pin and be fixed to turntable type throwing pill machine
Turntable on, close shot blast room door；
（2）Start the Shot Blasting System of turntable type throwing pill machine, automobile connecting bar is with 2.5-2.8 turns/min 360 ° of rotations of rotating speed, pellet
Nozzle through impeller head, which is launched, carries out Shot Blasting to automobile connecting bar, Shot Blasting 5-7min, and automobile connecting bar is made during ball blast
With the control of the distance between surface and impeller head nozzle in 50-60cm；
During Shot Blasting：The flow for setting pellet is 150-200kg/min, two couples of ball blast beat 4-6min/, shot blasting velocity 70-
90m/s；
（3）After Shot Blasting terminates, ball blast door is opened, automobile connecting rod is unloaded, throwing pill strengthening process is completed.
The technical scheme that further limits of the present invention as：
Aforementioned automotive connecting rod throwing pill strengthening technique, comprises the following steps：
（1）After automobile connecting bar completes high-frequency quenching shaping, then installed using alignment pin and be fixed to turntable type throwing pill machine
Turntable on, close shot blast room door；
（2）Start the Shot Blasting System of turntable type throwing pill machine, automobile connecting bar is with 2.6 turns/min 360 ° of rotations of rotating speed, and pellet is through throwing
The nozzle of ball device is launched carries out Shot Blasting, Shot Blasting 6min, automobile connecting bar action face during ball blast to automobile connecting bar
With the control of the distance between impeller head nozzle in 55cm；
During Shot Blasting：The flow for setting pellet is 180kg/min, two couples of ball blast beat 5min/, shot blasting velocity 80m/s；
（3）After Shot Blasting terminates, ball blast door is opened, automobile connecting rod is unloaded, throwing pill strengthening process is completed.
Aforementioned automotive connecting rod throwing pill strengthening technique, comprises the following steps：
（1）After automobile connecting bar completes high-frequency quenching shaping, then installed using alignment pin and be fixed to turntable type throwing pill machine
Turntable on, close shot blast room door；
（2）Start the Shot Blasting System of turntable type throwing pill machine, automobile connecting bar is with 2.5 turns/min 360 ° of rotations of rotating speed, and pellet is through throwing
The nozzle of ball device is launched carries out Shot Blasting, Shot Blasting 5min, automobile connecting bar action face during ball blast to automobile connecting bar
With the control of the distance between impeller head nozzle in 50cm；
During Shot Blasting：The flow for setting pellet is 150kg/min, two couples of ball blast beat 4min/, shot blasting velocity 70m/s；
（3）After Shot Blasting terminates, ball blast door is opened, automobile connecting rod is unloaded, throwing pill strengthening process is completed.
Aforementioned automotive connecting rod throwing pill strengthening technique, comprises the following steps：
（1）After automobile connecting bar completes high-frequency quenching shaping, then installed using alignment pin and be fixed to turntable type throwing pill machine
Turntable on, close shot blast room door；
（2）Start the Shot Blasting System of turntable type throwing pill machine, automobile connecting bar is with 2.8 turns/min 360 ° of rotations of rotating speed, and pellet is through throwing
The nozzle of ball device is launched carries out Shot Blasting, Shot Blasting 7min, automobile connecting bar action face during ball blast to automobile connecting bar
With the control of the distance between impeller head nozzle in 60cm；
During Shot Blasting：The flow for setting pellet is 200kg/min, two couples of ball blast beat 6min/, shot blasting velocity 90m/s；
（3）After Shot Blasting terminates, ball blast door is opened, automobile connecting rod is unloaded, throwing pill strengthening process is completed.
Aforementioned automotive connecting rod throwing pill strengthening technique, turntable type throwing pill machine is double door double-turntable type throwing pill machine.
Aforementioned automotive connecting rod throwing pill strengthening technique, pellet is that steel wire cut pill and circular cast steel ball are mixed, in mass ratio
3:1 ratio mixing, the hardness of steel wire cut pill is HV610-HV650, steel wire cut pill by φ 300-400 μm steel wire cut pill and φ
500-600mm steel wire cut pill is mixed, by mass percentage φ 300-400 μm steel wire cut pill：70-80%, φ 500-
600mm steel wire cut pill 20-30%, above sum is 100%.
Technique effect：
Because in ball blast technique, bullet is bigger, derusting effect is better, but the surface roughness after derusting is bigger, same area
The bullet grain number that component surface is covered when throwing and beating is few, and effect is low, because excessive roughness has a negative impact to japanning, institute
To be any limitation as to bullet diameter, the circular cast steel ball of choosing is mixed with steel wire cut pill, and steel wire cut pill is that steel wire cuts into chunks what is formed
Cylinder-shaped bullet, cylinder corner angle have certain scraping action, both will not damaged member surface, rust cleaning efficiency can be improved again；
Cast steel ball is mixed with steel wire cut pill in the present invention, maximized favourable factors and minimized unfavourable ones, while steel wire cut pill selects two kinds without diameter
Mixing complies with more vast demand when being beneficial to automobile connecting bar Shot Blasting, will not be carried because of the single requirement of single sexual satisfaction
The high efficiency of Shot Blasting, improves the quality of final connecting rod.
Aforementioned automotive connecting rod throwing pill strengthening technique, step（2）Setting ball blast A Erman high level is during middle progress Shot Blasting
0.23-0.28mm。
Aforementioned automotive connecting rod throwing pill strengthening technique, step（2）Middle pellet from ball blast machine nozzle launch when pellet initial velocity
Spend for 40-50m/s, pellet incident angle is controlled at 60-70 °.
The beneficial effects of the invention are as follows：
Due to ball blast pill cast great efforts, automobile connecting bar after strength ball blast surface because automobile connecting bar is through the processed band of milling drum
Greasy dirt, the oxide skin on surface, iron rust come etc. is thoroughly removed so that any surface finish, is that subsequent treatment is laid a good foundation, with
Just high-quality finished product is obtained, is increased the service life.
The positive effect of the present invention is the material surface for enhancing product, material surface is in compressive stress state, can
Slow down the generation of automobile connecting bar fatigue crack, the flexible life of automobile connecting bar can be greatly improved and quickly realize that product is domestic
Change, improve 3-5 times compared with the Wheel Fatigue life-span of traditional handicraft using the automobile connecting bar fatigue life of shot-blast process, solve high-end
This significant technology issues of automobile connecting bar flexible life.
In the Shot Blasting method of the increase workpiece stress of the present invention, reinforcing ball blast strengthens the quality of effect to automobile connecting bar
Additionally depend on the depth that compression is implanted into connecting rod, it is necessary to which obtaining a good stress depth bounds could really give play to greatly
Width increases the effect in connecting rod life-span, and the implantation depth of compression is that have directly with ball blast intensity, pellet size and pellet hardness
Relation, therefore the pellet that we use in process is it is ensured that the depth and the integrality on surface of implantation compression.
Embodiment
Embodiment 1
The present embodiment provides a kind of automobile connecting bar throwing pill strengthening technique, comprises the following steps：
（1）After automobile connecting bar completes high-frequency quenching shaping, then installed using alignment pin and be fixed to the double turntables of double door
On the turntable of formula shot-blasting machine, shot blast room door is closed；
（2）Start the Shot Blasting System of turntable type throwing pill machine, automobile connecting bar is with 2.6 turns/min 360 ° of rotations of rotating speed, and pellet is through throwing
The nozzle of ball device is launched carries out Shot Blasting, Shot Blasting 6min, automobile connecting bar action face during ball blast to automobile connecting bar
With the control of the distance between impeller head nozzle in 55cm；
During Shot Blasting：The flow for setting pellet is 180kg/min, two couples of ball blast beat 5min/, shot blasting velocity 80m/s, ball blast
A Erman high level is 0.25mm, pellet from ball blast machine nozzle launch when pellet initial velocity be 45m/s, shot incident angle control
System is at 65 °；
（3）After Shot Blasting terminates, ball blast door is opened, automobile connecting rod is unloaded, throwing pill strengthening process is completed.
In the present embodiment, pellet is that steel wire cut pill and circular cast steel ball are mixed, in mass ratio 3:1 ratio is mixed
Close, the hardness of steel wire cut pill is HV630, steel wire cut pill by 350 μm of φ steel wire cut pill and φ 550mm steel wire cut pill mixing and
Into 350 μm of φ steel wire cut pill by mass percentage：75%, φ 550mm steel wire cut pill 25%.
Embodiment 2
The present embodiment provides a kind of automobile connecting bar throwing pill strengthening technique, comprises the following steps：
（1）After automobile connecting bar completes high-frequency quenching shaping, then installed using alignment pin and be fixed to the double turntables of double door
On the turntable of formula shot-blasting machine, shot blast room door is closed；
（2）Start the Shot Blasting System of turntable type throwing pill machine, automobile connecting bar is with 2.5 turns/min 360 ° of rotations of rotating speed, and pellet is through throwing
The nozzle of ball device is launched carries out Shot Blasting, Shot Blasting 5min, automobile connecting bar action face during ball blast to automobile connecting bar
With the control of the distance between impeller head nozzle in 50cm；
During Shot Blasting：The flow for setting pellet is 150kg/min, two couples of ball blast beat 4min/, shot blasting velocity 70m/s, ball blast
A Erman high level is 0.28mm, pellet from ball blast machine nozzle launch when pellet initial velocity be 50m/s, shot incident angle control
System is at 70 °；
（3）After Shot Blasting terminates, ball blast door is opened, automobile connecting rod is unloaded, throwing pill strengthening process is completed.
In the present embodiment, pellet is that steel wire cut pill and circular cast steel ball are mixed, in mass ratio 3:1 ratio is mixed
Close, the hardness of steel wire cut pill is HV650, steel wire cut pill by 400 μm of φ steel wire cut pill and φ 600mm steel wire cut pill mixing and
Into 400 μm of φ steel wire cut pill by mass percentage：70%, φ 600mm steel wire cut pill 30%.
Embodiment 3
The present embodiment provides a kind of automobile connecting bar throwing pill strengthening technique, comprises the following steps：
（1）After automobile connecting bar completes high-frequency quenching shaping, then installed using alignment pin and be fixed to the double turntables of double door
On the turntable of formula shot-blasting machine, shot blast room door is closed；
（2）Start the Shot Blasting System of turntable type throwing pill machine, automobile connecting bar is with 2.8 turns/min 360 ° of rotations of rotating speed, and pellet is through throwing
The nozzle of ball device is launched carries out Shot Blasting, Shot Blasting 7min, automobile connecting bar action face during ball blast to automobile connecting bar
With the control of the distance between impeller head nozzle in 60cm；
During Shot Blasting：The flow for setting pellet is 200kg/min, two couples of ball blast beat 6min/, shot blasting velocity 90m/s, ball blast
A Erman high level is 0.23mm, pellet from ball blast machine nozzle launch when pellet initial velocity be 40m/s, shot incident angle control
System is at 60 °；
（3）After Shot Blasting terminates, ball blast door is opened, automobile connecting rod is unloaded, throwing pill strengthening process is completed.
In the present embodiment, pellet is that steel wire cut pill and circular cast steel ball are mixed, in mass ratio 3:1 ratio is mixed
Close, the hardness of steel wire cut pill is HV610, steel wire cut pill by 300 μm of φ steel wire cut pill and φ 500mm steel wire cut pill mixing and
Into 300 μm of φ steel wire cut pill by mass percentage：80%, φ 500mm steel wire cut pill 20%.
In addition to the implementation, the present invention can also have other embodiment.All use equivalent substitution or equivalent transformation shape
Into technical scheme, all fall within the protection domain of application claims.
Claims (8)
1. a kind of automobile connecting bar throwing pill strengthening technique, it is characterised in that comprise the following steps：
（1）After automobile connecting bar completes high-frequency quenching shaping, then installed using alignment pin and be fixed to turntable type throwing pill machine
Turntable on, close shot blast room door；
（2）Start the Shot Blasting System of turntable type throwing pill machine, automobile connecting bar is with 2.5-2.8 turns/min 360 ° of rotations of rotating speed, pellet
Nozzle through impeller head, which is launched, carries out Shot Blasting to automobile connecting bar, Shot Blasting 5-7min, and automobile connecting bar is made during ball blast
With the control of the distance between surface and impeller head nozzle in 50-60cm；
During Shot Blasting：The flow for setting pellet is 150-200kg/min, two couples of ball blast beat 4-6min/, shot blasting velocity 70-
90m/s；
（3）After Shot Blasting terminates, ball blast door is opened, automobile connecting rod is unloaded, throwing pill strengthening process is completed.
2. automobile connecting bar throwing pill strengthening technique according to claim 1, it is characterised in that：Comprise the following steps：
（1）After automobile connecting bar completes high-frequency quenching shaping, then installed using alignment pin and be fixed to turntable type throwing pill machine
Turntable on, close shot blast room door；
（2）Start the Shot Blasting System of turntable type throwing pill machine, automobile connecting bar is with 2.6 turns/min 360 ° of rotations of rotating speed, and pellet is through throwing
The nozzle of ball device is launched carries out Shot Blasting, Shot Blasting 6min, automobile connecting bar action face during ball blast to automobile connecting bar
With the control of the distance between impeller head nozzle in 55cm；
During Shot Blasting：The flow for setting pellet is 180kg/min, two couples of ball blast beat 5min/, shot blasting velocity 80m/s；
（3）After Shot Blasting terminates, ball blast door is opened, automobile connecting rod is unloaded, throwing pill strengthening process is completed.
3. automobile connecting bar throwing pill strengthening technique according to claim 1, it is characterised in that：Comprise the following steps：
（1）After automobile connecting bar completes high-frequency quenching shaping, then installed using alignment pin and be fixed to turntable type throwing pill machine
Turntable on, close shot blast room door；
（2）Start the Shot Blasting System of turntable type throwing pill machine, automobile connecting bar is with 2.5 turns/min 360 ° of rotations of rotating speed, and pellet is through throwing
The nozzle of ball device is launched carries out Shot Blasting, Shot Blasting 5min, automobile connecting bar action face during ball blast to automobile connecting bar
With the control of the distance between impeller head nozzle in 50cm；
During Shot Blasting：The flow for setting pellet is 150kg/min, two couples of ball blast beat 4min/, shot blasting velocity 70m/s；
（3）After Shot Blasting terminates, ball blast door is opened, automobile connecting rod is unloaded, throwing pill strengthening process is completed.
4. automobile connecting bar throwing pill strengthening technique according to claim 1, it is characterised in that：Comprise the following steps：
（1）After automobile connecting bar completes high-frequency quenching shaping, then installed using alignment pin and be fixed to turntable type throwing pill machine
Turntable on, close shot blast room door；
（2）Start the Shot Blasting System of turntable type throwing pill machine, automobile connecting bar is with 2.8 turns/min 360 ° of rotations of rotating speed, and pellet is through throwing
The nozzle of ball device is launched carries out Shot Blasting, Shot Blasting 7min, automobile connecting bar action face during ball blast to automobile connecting bar
With the control of the distance between impeller head nozzle in 60cm；
During Shot Blasting：The flow for setting pellet is 200kg/min, two couples of ball blast beat 6min/, shot blasting velocity 90m/s；
（3）After Shot Blasting terminates, ball blast door is opened, automobile connecting rod is unloaded, throwing pill strengthening process is completed.
5. the automobile connecting bar throwing pill strengthening technique according to any claim in claim 1-4, it is characterised in that：It is described
Turntable type throwing pill machine is double door double-turntable type throwing pill machine.
6. the automobile connecting bar throwing pill strengthening technique according to any claim in claim 1-4, it is characterised in that：It is described
Pellet is that steel wire cut pill and circular cast steel ball are mixed, in mass ratio 3:1 ratio is mixed, and the hardness of the steel wire cut pill is
HV610-HV650, the steel wire cut pill by φ 300-400 μm steel wire cut pill and φ 500-600mm steel wire cut pill mixing and
Into φ 300-400 μm steel wire cut pill by mass percentage：70-80%, φ 500-600mm steel wire cut pill 20-30%, with
Upper sum is 100%.
7. the automobile connecting bar throwing pill strengthening technique according to any claim in claim 1-4, it is characterised in that：Step
（2）It is 0.23-0.28mm that ball blast A Erman high level is set during middle progress Shot Blasting.
8. the automobile connecting bar throwing pill strengthening technique according to any claim in claim 1-4, it is characterised in that：Step
（2）Described in pellet from ball blast machine nozzle launch when pellet initial velocity be 40-50m/s, shot incident angle is controlled in 60-
70°。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710485475.8A CN107130094A (en) | 2017-06-23 | 2017-06-23 | A kind of automobile connecting bar throwing pill strengthening technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710485475.8A CN107130094A (en) | 2017-06-23 | 2017-06-23 | A kind of automobile connecting bar throwing pill strengthening technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107130094A true CN107130094A (en) | 2017-09-05 |
Family
ID=59735651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710485475.8A Pending CN107130094A (en) | 2017-06-23 | 2017-06-23 | A kind of automobile connecting bar throwing pill strengthening technique |
Country Status (1)
| Country | Link |
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| CN (1) | CN107130094A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107738190A (en) * | 2017-11-14 | 2018-02-27 | 江苏飞腾铸造机械有限公司 | A kind of ball blast technique method for workpiece |
| CN107791156A (en) * | 2017-11-13 | 2018-03-13 | 江苏飞腾铸造机械有限公司 | A kind of Shot Blasting method for steel plate derusting rust-proofing |
| CN108486339A (en) * | 2018-03-27 | 2018-09-04 | 王华银 | A kind of ball blast technique of bent axle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287441A (en) * | 2011-08-01 | 2011-12-21 | 重庆小康工业集团股份有限公司 | Motorcycle engine connecting rod and manufacturing process thereof |
| CN104565010A (en) * | 2013-10-15 | 2015-04-29 | 齐志 | Manufacturing technology of connecting rod of internal combustion engine of automobile |
| 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
- 2017-06-23 CN CN201710485475.8A patent/CN107130094A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287441A (en) * | 2011-08-01 | 2011-12-21 | 重庆小康工业集团股份有限公司 | Motorcycle engine connecting rod and manufacturing process thereof |
| CN104565010A (en) * | 2013-10-15 | 2015-04-29 | 齐志 | Manufacturing technology of connecting rod of internal combustion engine of automobile |
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| 冯史勋: ""连杆强化抛丸工艺"", 《汽车工艺》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107791156A (en) * | 2017-11-13 | 2018-03-13 | 江苏飞腾铸造机械有限公司 | A kind of Shot Blasting method for steel plate derusting rust-proofing |
| CN107738190A (en) * | 2017-11-14 | 2018-02-27 | 江苏飞腾铸造机械有限公司 | A kind of ball blast technique method for workpiece |
| CN108486339A (en) * | 2018-03-27 | 2018-09-04 | 王华银 | A kind of ball blast technique of bent axle |
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Application publication date: 20170905 |