CN107030447A - A kind of engine cylinder hole restorative procedure - Google Patents
A kind of engine cylinder hole restorative procedure Download PDFInfo
- Publication number
- CN107030447A CN107030447A CN201710265533.6A CN201710265533A CN107030447A CN 107030447 A CN107030447 A CN 107030447A CN 201710265533 A CN201710265533 A CN 201710265533A CN 107030447 A CN107030447 A CN 107030447A
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- China
- Prior art keywords
- engine cylinder
- cylinder
- cylinder holes
- restorative procedure
- engine
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- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000005488 sandblasting Methods 0.000 claims abstract description 10
- 238000005507 spraying Methods 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 238000010891 electric arc Methods 0.000 claims abstract description 4
- 238000003754 machining Methods 0.000 claims abstract description 4
- 238000003801 milling Methods 0.000 claims abstract description 4
- 229910000640 Fe alloy Inorganic materials 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000011247 coating layer Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000007788 roughening Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B23P6/00—Restoring or reconditioning objects
- B23P6/02—Pistons or cylinders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Coating By Spraying Or Casting (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of engine cylinder hole restorative procedure, comprise the following steps：(1) bore hole, by machining, unified engine cylinder hole bottom outlet size cuts thread groove line with rotating knife in bottom outlet；(2) cylinder holes inwall is preheated；(3) cylinder holes inwall sandblasting；(4) electric arc spraying is carried out to cylinder holes inwall；(5) milling top surface, is surface-treated using machine-tooled method to cylinder deck；(6) coating is machined, and corrects the cylindricity of engine cylinder hole；(7) honing cylinder holes, recovers the size of engine cylinder hole.The engine cylinder hole restorative procedure that the present invention is provided, recovers cylinder holes size in the case where not changing housing structure, and production efficiency is high, reduces production cost.
Description
Technical field
The present invention relates to a kind of engine cylinder hole restorative procedure.
Background technology
The big cylinder holes of boring is typically taken in current engine cylinder hole reparation, inlays the mode of cylinder sleeve.This reparation means have following ask
Topic：
(1) change original design, easily cause cylinder body poor radiation, water temperature raises 3~5 DEG C；
(2) rehabilitation cost height is, it is necessary to increase the cost of cylinder sleeve.
For the small cylinder body of distance between cylinder holes, it is impossible to repair.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of engine cylinder hole restorative procedure, knot is not changed
Recover the original size of cylinder holes in the case of structure.
For the purpose of the present invention, the technical scheme that the present invention is provided is：
A kind of engine cylinder hole restorative procedure, comprises the following steps：
(1) bore hole, by machining, unified engine cylinder hole bottom outlet size, with rotating knife in bottom outlet screw cutting
The line of rabbet joint；
(2) cylinder holes inwall is preheated；
(3) cylinder holes inwall sandblasting；
(4) electric arc spraying is carried out to cylinder holes inwall；
(5) milling top surface, is surface-treated using machine-tooled method to cylinder deck；
(6) coating is machined, and corrects the cylindricity of engine cylinder hole；
(7) honing cylinder holes, recovers the size of engine cylinder hole.
In some embodiments wherein, the size of unified engine cylinder hole is in the step (1)
Roughness is Ra3.2~Ra6, whereinFor engine cylinder-body cylinder holes normal diameter.
In some embodiments wherein, using 60 ° of rotating knifes in the step (1), the groove depth of the screw thread line of rabbet joint is 0.2
~0.3mm, pitch is 2 times of groove depth.
In some embodiments wherein, cylinder holes inwall is heated using hot blast in the step (2), makes cylinder holes
The temperature of inwall is heated to+5 DEG C of environment temperature.
In some embodiments wherein, using 24# emergies to cylinder holes inner thread line of rabbet joint portion in the step (3)
Position carries out sandblasting cleaning and texturing, and the cleannes requirement after sandblasting is Sa3 grades, 150 μm of 75 μm of ＞ Ra ＞ of roughening value.
In some embodiments wherein, line footpath Φ 1.2mm or Φ 1.6mm ferrous alloys are used in the step (4)
Silk is as sprayed on material, coating layer thickness 0.25mm, adhesion >=28MPa, and porosity is 3%~5%, hardness HRc35~50, spray
Apply rear engine cylinder holes a diameter of WhereinFor engine cylinder-body cylinder holes normal diameter.
In some embodiments wherein, cylinder deck 0.1~0.2mm of surplus, flatness are milled in the step (5)
For 0.1mm.
In some embodiments wherein, the diameter of engine cylinder hole is machined in the step (6)WhereinFor engine cylinder-body cylinder holes normal diameter.
Recover engine cylinder hole in some embodiments wherein, in the step (7) a diameter of(+0.018/0)
Mm, whereinFor engine cylinder-body cylinder holes normal diameter.
Relative to scheme of the prior art, it is an advantage of the invention that：
Using technical scheme, recover cylinder holes size in the case where not changing engine cylinder-body, save cost
And raw material, the restorative procedure is simple to operate, and production efficiency is high.
Embodiment
Such scheme is described further below in conjunction with specific embodiment.It should be understood that these embodiments are to be used to illustrate
The present invention and be not limited to limit the scope of the present invention.The implementation condition used in embodiment can be done according to the condition of specific producer
Further adjustment, unreceipted implementation condition is usually the condition in normal experiment.
With cylinder holes diameter in this exampleCylinder holes repair exemplified by, comprise the following steps：
(1) bore hole, by machining, unified engine cylinder hole bottom outlet size is 93.3 ± 0.02, and roughness is Ra3.2
~Ra6, cuts thread groove line, the groove depth of the screw thread line of rabbet joint is 0.2~0.3mm, and pitch is groove depth with 60 ° of rotating knifes in bottom outlet
2 times；
(2) cylinder holes inwall is preheated, cylinder holes inwall is heated using hot blast, the temperature of cylinder holes inwall is heated to ring
+ 5 DEG C of border temperature；
(3) cylinder holes inwall sandblasting, sandblasting cleaning and hair are carried out using 24# emergies to cylinder holes inner thread line of rabbet joint position
Change, the cleannes requirement after sandblasting is Sa3 grades, 150 μm >=Ra >=75 μm of roughening value；
(4) electric arc spraying is carried out to cylinder holes inwall, spraying is used as using line footpath Φ 1.2mm or Φ 1.6mm ferrous alloys silk
Material, coating layer thickness 0.25mm, adhesion >=28MPa, porosity is 3%~5%, and hardness HRc35~50 spray rear engine
A diameter of 92.8 ± the 0.02mm of cylinder holes,；
(5) milling top surface, is surface-treated using machine-tooled method to cylinder deck, mill cylinder deck surplus 0.1~
0.2mm, flatness is 0.1mm；
(6) coating is machined, and the diameter of engine cylinder hole is machined into 92.9 ± 0.02mm, amendment engine cylinder hole
Cylindricity；
(7) honing cylinder holes, recovers a diameter of 93 (+0.018/0) mm of engine cylinder hole.
The foregoing examples are merely illustrative of the technical concept and features of the invention, its object is to allow one skilled in the art
Present disclosure can be understood and implemented according to this, it is not intended to limit the scope of the present invention.It is all smart according to the present invention
Equivalent transformation or modification that refreshing essence is done, should all be included within the scope of the present invention.
Claims (9)
1. a kind of engine cylinder hole restorative procedure, it is characterised in that comprise the following steps：
(1) bore hole, by machining, unified engine cylinder hole bottom outlet size cuts thread groove line with rotating knife in bottom outlet；
(2) cylinder holes inwall is preheated；
(3) to cylinder holes inwall sandblasting；
(4) electric arc spraying is carried out to cylinder holes inwall；
(5) milling top surface, is surface-treated using machine-tooled method to cylinder deck；
(6) coating is machined, and corrects the cylindricity of engine cylinder hole；
(7) honing cylinder holes, recovers the size of engine cylinder hole.
2. engine cylinder hole restorative procedure according to claim 1, it is characterised in that：Uniformly start in the step (1)
The size of machine cylinder holes is+ 0.3 ± 0.02, roughness is Ra3.2~Ra6, whereinFor engine cylinder-body cylinder holes normal diameter.
3. engine cylinder hole restorative procedure according to claim 1, it is characterised in that：Using 60 ° of rotations in the step (1)
Rotor, the groove depth of the screw thread line of rabbet joint is 0.2~0.3mm, and pitch is 2 times of groove depth.
4. engine cylinder hole restorative procedure according to claim 1, it is characterised in that：Hot blast is used in the step (2)
Cylinder holes inwall is heated, the temperature of cylinder holes inwall is heated to+5 DEG C of environment temperature.
5. engine cylinder hole restorative procedure according to claim 1, it is characterised in that：It is firm using 24# in the step (3)
Beautiful sand carries out sandblasting cleaning and texturing to cylinder holes inner thread line of rabbet joint position, and the cleannes requirement after sandblasting is Sa3 grades, roughening value
150 μm of 75 μm of ＞ Ra ＞.
6. engine cylinder hole restorative procedure according to claim 1, it is characterised in that：Line footpath is used in the step (4)
Φ 1.2mm or Φ 1.6mm ferrous alloys silk is as sprayed on material, coating layer thickness 0.25mm, adhesion >=28MPa, porosity
3%~5%, hardness HRc35~50, spraying rear engine cylinder holes is a diameter ofWhereinFor engine cylinder
Body cylinder holes normal diameter.
7. engine cylinder hole restorative procedure according to claim 1, it is characterised in that：Cylinder body is milled in the step (5)
Top surface 0.1~0.2mm of surplus, flatness is 0.1mm.
8. engine cylinder hole restorative procedure according to claim 1, it is characterised in that：By engine in the step (6)
The diameter of cylinder holes is machined toWhereinFor engine cylinder-body cylinder holes normal diameter.
9. engine cylinder hole restorative procedure according to claim 1, it is characterised in that：Recover to start in the step (7)
Machine cylinder holes is a diameter ofWhereinFor engine cylinder-body cylinder holes normal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265533.6A CN107030447A (en) | 2017-04-21 | 2017-04-21 | A kind of engine cylinder hole restorative procedure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265533.6A CN107030447A (en) | 2017-04-21 | 2017-04-21 | A kind of engine cylinder hole restorative procedure |
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| Publication Number | Publication Date |
|---|---|
| CN107030447A true CN107030447A (en) | 2017-08-11 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710265533.6A Pending CN107030447A (en) | 2017-04-21 | 2017-04-21 | A kind of engine cylinder hole restorative procedure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108220858A (en) * | 2018-01-14 | 2018-06-29 | 常州大学 | It is a kind of to strengthening the process that remanufactures at metallic conduit internal surface damage |
| CN110643923A (en) * | 2019-09-19 | 2020-01-03 | 成都正恒动力股份有限公司 | Method for repairing cylinder block by using spraying process |
| CN111299956A (en) * | 2019-12-06 | 2020-06-19 | 西安广源机电技术有限公司 | An engine maintenance method |
| CN114959541A (en) * | 2022-05-30 | 2022-08-30 | 安庆帝伯格茨缸套有限公司 | Electric arc spraying cylinder sleeve and preparation method thereof |
| CN115647724A (en) * | 2022-10-26 | 2023-01-31 | 中国航发沈阳黎明航空发动机有限责任公司 | Method for repairing silver-copper sealing coating in deep hole |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1277088A (en) * | 1999-06-09 | 2000-12-20 | 杜学义 | Dry laser cylinder jacket for internal combustion engine and its usage and forming cutter ` |
| EP1652951A1 (en) * | 2004-10-29 | 2006-05-03 | United Technologies Corporation | Method and apparatus for microplasma spray coating a portion of a turbine vane in a gas turbine engine |
| CN105986919A (en) * | 2015-01-28 | 2016-10-05 | 代卫东 | Improved engine cylinder block and manufacturing technique thereof |
| CN106078077A (en) * | 2016-08-25 | 2016-11-09 | 张家港清研再制造产业研究院有限公司 | A kind of engine cylinder hole restorative procedure |
-
2017
- 2017-04-21 CN CN201710265533.6A patent/CN107030447A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1277088A (en) * | 1999-06-09 | 2000-12-20 | 杜学义 | Dry laser cylinder jacket for internal combustion engine and its usage and forming cutter ` |
| EP1652951A1 (en) * | 2004-10-29 | 2006-05-03 | United Technologies Corporation | Method and apparatus for microplasma spray coating a portion of a turbine vane in a gas turbine engine |
| CN105986919A (en) * | 2015-01-28 | 2016-10-05 | 代卫东 | Improved engine cylinder block and manufacturing technique thereof |
| CN106078077A (en) * | 2016-08-25 | 2016-11-09 | 张家港清研再制造产业研究院有限公司 | A kind of engine cylinder hole restorative procedure |
Non-Patent Citations (1)
| Title |
|---|
| 宣天鹏: "《表面工程技术的设计与选择》", 31 May 2011, 机械工业出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108220858A (en) * | 2018-01-14 | 2018-06-29 | 常州大学 | It is a kind of to strengthening the process that remanufactures at metallic conduit internal surface damage |
| CN110643923A (en) * | 2019-09-19 | 2020-01-03 | 成都正恒动力股份有限公司 | Method for repairing cylinder block by using spraying process |
| CN111299956A (en) * | 2019-12-06 | 2020-06-19 | 西安广源机电技术有限公司 | An engine maintenance method |
| CN114959541A (en) * | 2022-05-30 | 2022-08-30 | 安庆帝伯格茨缸套有限公司 | Electric arc spraying cylinder sleeve and preparation method thereof |
| CN115647724A (en) * | 2022-10-26 | 2023-01-31 | 中国航发沈阳黎明航空发动机有限责任公司 | Method for repairing silver-copper sealing coating in deep hole |
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Application publication date: 20170811 |