CN102925647A - Method for saturated shot blasting of stainless steel spring - Google Patents
Method for saturated shot blasting of stainless steel spring Download PDFInfo
- Publication number
- CN102925647A CN102925647A CN2012104719274A CN201210471927A CN102925647A CN 102925647 A CN102925647 A CN 102925647A CN 2012104719274 A CN2012104719274 A CN 2012104719274A CN 201210471927 A CN201210471927 A CN 201210471927A CN 102925647 A CN102925647 A CN 102925647A
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- shot
- spring
- steel spring
- external diameter
- 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.)
- Granted
Links
- 239000010935 stainless steel Substances 0.000 title claims abstract description 36
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 36
- 238000005422 blasting Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 20
- 229920006395 saturated elastomer Polymers 0.000 title claims abstract description 13
- 238000005480 shot peening Methods 0.000 claims description 34
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 abstract 2
- 239000010959 steel Substances 0.000 abstract 2
- 238000000926 separation method Methods 0.000 abstract 1
- 238000005728 strengthening Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000002180 anti-stress Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Landscapes
- Springs (AREA)
Abstract
The invention relates to a method for saturated shot blasting of a stainless steel spring. The method is characterized by comprising the steps as follows: (1), steel shots are added in a shot blasting machine, and shot blasting is carried out on the stainless steel spring; and (2), the external diameter of the stainless steel spring is measured every five minutes, and when the variation values of the external diameters measured twice are within the range of 0 to 0.02 mm, the stainless steel spring reaches the saturated shot blasting to finish the shot blasting process. The external diameter of the steel shots is 0.4 mm. The method has the advantages that (1), the stability of the external diameter of the spring can be improved; (2), the surface coverage rate of the spring is higher, and the fatigue life is prolonged; and (3), the separation working hours can be reduced, the mounting is more facilitated, and the production efficiency is improved.
Description
Technical field
The present invention relates to a kind of ball blasting method, especially a kind of saturated ball blasting method of stainless steel spring.
Background technology
Spring is widely used in all trades and professions, and institute uses to such an extent that material is also very extensive, but generally speaking, spring is take carbon steel wire, alloy-steel wire as main, and is less to stainless material research, particularly the relation of stress peening process and stainless steel spring.
Shot peening also claims shot peening strengthening, to reduce part fatigue, improve one of the effective ways in life-span, shot peening is ejected into the spring surface with High-velocity Projectiles stream exactly, makes the spring top layer that viscous deformation occur, and forms certain thickness strengthening layer, form higher unrelieved stress in the strengthening layer, because the existence of spring bearing stress can be offset a part of anti-stress when the spring carry load, thereby improve the fatigue strength of spring.
Shot peening strengthening is under a state of controlling fully, countless small circular is called medium high speed and the continuous injection of shot, beats piece surface, thereby produces a residual compressive stress layer on the surface.Because on every shot bump metal parts, beat the surface just like a miniature rod is beaten, beat out little impression or depression.For forming depression, metal surface must produce stretching.Under the top layer, the crystal grain of compression is attempted surface recovery is arrived original form, thereby produces the hemisphere under the effect of a high compression power.Countless depressions overlap to form uniform residual compressive stress layer.Finally, part has improved fatigue resistance dramatically under the compressive stress layer protection, prolonged the trouble-free service life-span.
In the prior art, spring when spring reaches required external diameter, is namely finished the shot-peening process often when shot peening.But the defective that this kind method exists is: the stainless steel spring shot-peening time is indefinite, the shot-peening time is generally 5 ~ 10 minutes, and the external diameter amount of rising is unstable, and is little when large during same batch of spring outer diameter, need to carry out the external diameter sorting, with 10 times of magnifying glass range estimation surface coverage＜90%.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of saturated ball blasting method of stainless steel spring is provided, improved the unsettled situation of stainless steel spring shot-peening, reduce the unstable impact on spring outer diameter of shot-peening.
According to technical scheme provided by the invention, the saturated ball blasting method of described stainless steel spring is characterized in that, comprises the steps:
(1) in shot-blasting machine, adds shot, stainless steel spring is carried out shot-peening;
(2) measured the external diameter of a stainless steel spring every 5 minutes, when twice measured external diameter changing value is in 0 ~ 0.02mm scope, the stainless steel spring shot-peening that reaches capacity then, the shot-peening process is finished.
The external diameter of described shot is 0.4mm.
The present invention has the following advantages: (1) saturated shot-peening method of the present invention can improve spring outer diameter stability; (2) saturated shot-peening method of the present invention can make the spring surface coverage higher, and be improved fatigue lifetime; When (3) the present invention can reduce the grder man, more be beneficial to installation, enhance productivity.
Description of drawings
Fig. 1 is the shot-peening time of embodiment 1 ~ 15 and the graphic representation of spring outer diameter.
Fig. 2 is the shot-peening time of embodiment 16 ~ 30 and the graphic representation of spring outer diameter.
Embodiment
The invention will be further described below in conjunction with specific embodiment.
Embodiment 1 ~ 15: a kind of saturated ball blasting method of stainless steel spring comprises the steps:
(1) adding the 25kg external diameter in shot-blasting machine is the shot of 0.4mm, is that the stainless steel spring of 1.7 * 16.5 * 26.5mm carries out shot-peening to specification;
(2) adopted the external diameter (the concrete outside diameter measuring numerical value of embodiment 1 ~ 15 in 70 minutes is as shown in table 1) of a stainless steel spring of vernier caliper measurement every 5 minutes, when twice measured external diameter changing value is in 0 ~ 0.02mm scope, the stainless steel spring shot-peening that reaches capacity then, the shot-peening process is finished; After shot-peening reached in 30 minutes, 10 times of magnifying glasses range estimations of the surface coverage of stainless steel spring were＞90%, and fraction of coverage promotes, and spring life gets a promotion, and stainless steel spring external diameter trend state of saturation need not to carry out the external diameter sorting, enhances productivity.
Table 1
As can be seen from Table 1, when implementing shot-blast process, the stainless steel spring external diameter changed larger at 0 ~ 25 minute, mean change amount 0.26mm, trended towards later on stablizing at 30 minutes, only change 0.03mm from 30 ~ 70 minute stage spring outer diameter of data, the spring surface coverage reaches more than 95%, and shot blasting effect is good.
Draw the relation curve of shot-peening time and spring outer diameter according to the external diameter mean value of 15 each shot-peening times of embodiment 1 ~ embodiment in the table 1, as shown in Figure 1, X-coordinate is the shot-peening time, and unit is minute; Ordinate zou is spring outer diameter, and unit is mm; As can be seen from Figure 1, the external diameter of stainless steel spring trend state of saturation, thus need not to carry out the external diameter sorting, improved production efficiency.
(1) adding the 30kg external diameter in shot-blasting machine is the shot of 0.4mm, is that the stainless steel spring of 1.4 * 11.5 * 16.72mm carries out shot-peening to specification;
(2) adopted the external diameter (the concrete outside diameter measuring numerical value of embodiment 16 ~ 30 in 70 minutes is as shown in table 2) of a stainless steel spring of vernier caliper measurement every 5 minutes, when twice measured external diameter changing value is in 0 ~ 0.02mm scope, the stainless steel spring shot-peening that reaches capacity then, the shot-peening process is finished; After shot-peening reached in 30 minutes, 10 times of magnifying glasses range estimations of the surface coverage of stainless steel spring were＞90%, and fraction of coverage promotes, and spring life gets a promotion, and stainless steel spring external diameter trend state of saturation need not to carry out the external diameter sorting, enhances productivity.
Table 2
As can be seen from Table 2, when implementing shot-blast process, the stainless steel spring external diameter changed larger at 0 ~ 25 minute, mean change amount 0.12mm, trended towards later on stablizing at 30 minutes, only change 0.03mm from 30 ~ 70 minute stage spring outer diameter of data, the spring surface coverage reaches more than 95%, and shot blasting effect is good.
Draw the relation curve of shot-peening time and spring outer diameter according to the external diameter mean value of 30 each shot-peening times of embodiment 16 ~ embodiment in the table 2, as shown in Figure 2, X-coordinate is the shot-peening time, and unit is minute; Ordinate zou is spring outer diameter, and unit is mm; As can be seen from Figure 2, the external diameter of stainless steel spring trend state of saturation, thus need not to carry out the external diameter sorting, improved production efficiency.
Claims (2)
1. the saturated ball blasting method of a stainless steel spring is characterized in that, comprises the steps:
(1) in shot-blasting machine, adds shot, stainless steel spring is carried out shot-peening;
(2) measured the external diameter of a stainless steel spring every 5 minutes, when twice measured external diameter changing value is in 0 ~ 0.02mm scope, the stainless steel spring shot-peening that reaches capacity then, the shot-peening process is finished.
2. the saturated ball blasting method of stainless steel spring as claimed in claim 1, it is characterized in that: the external diameter of described shot is 0.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210471927.4A CN102925647B (en) | 2012-11-20 | 2012-11-20 | Method for saturated shot blasting of stainless steel spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210471927.4A CN102925647B (en) | 2012-11-20 | 2012-11-20 | Method for saturated shot blasting of stainless steel spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102925647A true CN102925647A (en) | 2013-02-13 |
| CN102925647B CN102925647B (en) | 2015-03-18 |
Family
ID=47640570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210471927.4A Active CN102925647B (en) | 2012-11-20 | 2012-11-20 | Method for saturated shot blasting of stainless steel spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102925647B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110681807A (en) * | 2019-08-27 | 2020-01-14 | 泰州市苏源汽车配件有限公司 | Spring curling and forming treatment process applied to display screen steering system |
| CN116929255A (en) * | 2023-07-24 | 2023-10-24 | 安徽星瑞齿轮传动有限公司 | Gear surface strong polishing coverage rate measurement process method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101543947A (en) * | 2009-04-25 | 2009-09-30 | 南阳二机石油装备(集团)有限公司 | Method for manufacturing spring of derrick centralizer |
-
2012
- 2012-11-20 CN CN201210471927.4A patent/CN102925647B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101543947A (en) * | 2009-04-25 | 2009-09-30 | 南阳二机石油装备(集团)有限公司 | Method for manufacturing spring of derrick centralizer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110681807A (en) * | 2019-08-27 | 2020-01-14 | 泰州市苏源汽车配件有限公司 | Spring curling and forming treatment process applied to display screen steering system |
| CN116929255A (en) * | 2023-07-24 | 2023-10-24 | 安徽星瑞齿轮传动有限公司 | Gear surface strong polishing coverage rate measurement process method |
| CN116929255B (en) * | 2023-07-24 | 2024-04-16 | 安徽星瑞齿轮传动有限公司 | Gear surface strong polishing coverage rate measurement process method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102925647B (en) | 2015-03-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101020946A (en) | Composite shot blasting reinforcement process to raise fatigue strength of titanium metal | |
| CN203495502U (en) | Production line for steel wire cut shots high in rigidity and long in service life | |
| CN102139470B (en) | Shot peening method for die material surface | |
| CN108342671A (en) | The high-energy shot preparation method of TC4 alloy surface gradient nano structures | |
| CN102925647B (en) | Method for saturated shot blasting of stainless steel spring | |
| CN103522015A (en) | High-hardness and long-service-life steel wire cut shot producing method and production line | |
| CN108857910A (en) | A kind of odd-shaped cross section thin-walled chamber class part shot peening strengthening flexible fixture | |
| CN105729310A (en) | Shot blasting process | |
| WO2008130742A3 (en) | Peening method for vehicle suspension spring with ceramic peening media | |
| CN102191446B (en) | Technology or raising bonding strength of matrix and ceramic coating | |
| CN204725337U (en) | Motor case shot-blasting machine erecting by overhang | |
| CN102242332A (en) | Meltallizing surface treatment process | |
| CN201133435Y (en) | Spring possessing surface reinforcement layer | |
| CN203348400U (en) | Improved pressure spring | |
| JP5705553B2 (en) | Shot peening method with excellent projectile life | |
| CN108994738A (en) | Double ball blast surface strengthening technologies | |
| CN204186806U (en) | A kind of spherical steel ball | |
| Zhao et al. | Control model and the experimental study on the ultrasonic vibration-assisted electrolytic in-process dressing internal grinding | |
| CN103352946A (en) | Compression spring | |
| CN102011778A (en) | Manufacture process of cotter pin | |
| KR101168707B1 (en) | A surface treating method of Al casting alloys by utilizing micro shot-peening | |
| CN206148211U (en) | Intelligent electromagnetic induction production checkout system is with accurate spring demagnetization equipment | |
| CN203711486U (en) | Laminar flow cooling roller | |
| CN103322102A (en) | Improved compression spring | |
| CN205111605U (en) | Branch ball dish of shot -blasting machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 202, Chengnan Road, Xinwu District, Wuxi City, Jiangsu Province, 214000 Patentee after: Wuxi Weifu Precision Machinery Manufacturing Co.,Ltd. Country or region after: China Address before: 214028, No. 202 Chengnan Road, Wangzhuang Industrial Supporting Zone, New District, Wuxi City, Jiangsu Province Patentee before: Wuxi Weifu Precision Machinery Manufacturing Co.,Ltd. Country or region before: China |