CN104264145A - Preparation method of cylinder jacket surface strengthening layer - Google Patents
Preparation method of cylinder jacket surface strengthening layer Download PDFInfo
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- CN104264145A CN104264145A CN201410473515.3A CN201410473515A CN104264145A CN 104264145 A CN104264145 A CN 104264145A CN 201410473515 A CN201410473515 A CN 201410473515A CN 104264145 A CN104264145 A CN 104264145A
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- 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
- C23C24/00—Coating starting from inorganic powder
- C23C24/02—Coating starting from inorganic powder by application of pressure only
Abstract
The invention relates to a preparation method of a cylinder jacket surface strengthening layer, which comprises the following step: pressing and permeating micro/nano particles into the internal surface of the cylinder jacket by extrusion and permeation by a high-energy ball milling process to form the surface strengthening layer, wherein the micro/nano particles are picrolite micro/nano particles. The method can effectively enhance the surface hardness of the cylinder jacket and reduce the abrasion loss.
Description
Technical field
The present invention relates to a kind of preparation method of cylinder-barrel surface strengthening layer.
Background technology
Oil engine is good with its maneuvering characteristics, dyestuff good economy performance, and the advantages such as use range is wide become the major impetus of boats and ships, and cylinder sleeve and piston ring are all most important friction pairs in oil engine, and the work-ing life and the property that directly affect oil engine are tender.Cylinder sleeve is that the integral part of combustion chamber components directly contacts with piston ring again, and its inwall is subject to the periodic heat effect of high-temperature fuel gas, and its outer wall directly contacts with water coolant, subjects cavitation pitting and electrolyte corrosion that cylinder sleeve high-frequency vibration causes.At this kind of high temperature, high pressure, insufficient lubrication and under having the severe condition such as solid particulate and corrosive medium, easily there are various wearing and tearing in cylinder sleeve, and the life-span of oil engine and use properties depend on this abrasion resistance to friction pair surely in very great achievement.Therefore, the wear resistance how improving cylinder-barrel surface becomes problem demanding prompt solution.
Present stage, cylinder-barrel surface enhancement method was a lot, but great majority are processing treatment before cylinder sleeve is installed and used, and utilize spraying, the methods such as nitrogenize obtain certain thickness strengthening layer at interior surface of cylinder liner, play wear-resisting effect.
For dissimilar diesel internal combustion engine, it is all substantially identical to the requirement of interior surface of cylinder liner Oil keeping, abrasion resistance, resistance to combustion gas corrosion, low-friction coefficient and enough physical strengths.In order to meet the requirement of interior surface of cylinder liner, the various surfaces such as chromium plating, ion nitriding, plasma multiple permeation, plasma quenching, laser quenching and thermospray have been successfully applied to the strengthening of cylinder-barrel surface.Also there is a variety of sufacing to be cylinder sleeve for having worn and torn, it is manufactured again, but often require that the sufacing adopted must possess the dual-use function of size restoration and surface strengthening.
But in use, once strengthening layer is worn, cylinder liner abrasion speed is sharply accelerated, and makes the energy, and waste of material is more.There is the lubricant adding in lubricating oil and there is self-lubricating self-repair function solid particulate at present, cylinder sleeve is made in use to carry out selfreparing to the cylinder sleeve after wearing and tearing, but due to finiteness and the nonunf ormity of additive, harsher to some environment, more serious position of wearing and tearing can not ensure its effective selfreparing, even if be also the reparation of single after repairing, the significant wastage of material after the time is longer, still can be caused.And aforesaid method is dazzling has larger pollution to environment, or need investment costly, have certain inadvisable property.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of cylinder-barrel surface strengthening layer, the method can improve the wear resisting property of cast iron cylinder cover greatly.
A kind of preparation method of cylinder-barrel surface strengthening layer, described method is: adopt high-energy ball milling method, micro-nano granules is squeezed by the method for extruding, infiltration the internal surface oozed in cylinder sleeve, form surface strengthen layer, described micro-nano granules is serpentine micro-nano granules.
Serpentine micro-nano granules has the good performances such as heat-resisting, anticorrosive, wear-resisting, is used as additive, can plays certain anti-attrition and self-repair function to the surface of frictional wear.
Preferably, cylinder sleeve is removed contamination edible vegetable oil process, and then carries out surface strengthen layer preparation.Exemplary edible vegetable oil method of removing contamination is: cylinder sleeve is soaked 6 hours in diesel oil, arranges a little with hairbrush, be placed on afterwards in the ultrasonic instrument of sanitising agent and carry out edible vegetable oil process, is finally placed in alcohol after soaking half an hour and dries up with blower.
Along with the increase of Ball-milling Time, the strengthening layer of one deck quality comparatively dense is generated gradually at interior surface of cylinder liner, the time of described ball milling is 5 ~ 9 hours, such as 5.3 hours, 5.6 hours, 5.9 hours, 6.2 hours, 6.5 hours, 6.8 hours, 7.1 hours, 7.4 hours, 7.7 hours, 8 hours, 8.3 hours, 8.6 hours or 8.9 hours, preferably 5.5 ~ 8.5 hours, preferably 6 ~ 8 hours further.
First micro-nano granules is embedded in the ferrite of soft, squeezes inwards further, and expands towards periphery, and enter into intrinsic silicon by soft passage under the extruding condition of ball milling collision.
Ball milling particulate is in moving process, under the comprehensive action of positive pressure and force of sliding friction, by alternate hole or can directly clamp-on pearlitic matrix surface, matrix is made to produce larger viscous deformation, even comprise the distortion of lattice and fragmentation etc., but owing to being subject to the opposing of inner layer substrate tissue, just create residual compressive stress at matrix surface.The plasticity of body material is good, and unrelieved stress is less, and the plasticity of material is poor, and pressure often can not get sufficient release, is present in matrix always.When unrelieved stress runs up to certain numerical value, the continuity of material will be destroyed, and even ruptures, and this reduces the wear resistance of material; Secondly, in ball milling collision process, can produce local instantaneous high-temperature, this part metal heated expansion, will produce thermal stresses, and after mechanical milling process terminates, cylinder sleeve internal skin cooling meat, is subject to the obstruction of inner layer metal, and upper layer will be made to produce residual tension.These unrelieved stresss can obtain release to a certain extent and not reduce the hardness value of material be not enough to occur temperature (lower than the 500 DEG C) annealing of recrystallize at metal after.From the delamination theory of wearing and tearing, abrasion piece is under the stress influence of pile-up of dislocation, and crackle or hole are formed in deformation layer, and can assemble in the defect of matrix or alternate particulate.Matrix be subject to external effect produce plasticity shearing strain time, hole and crackle will be together with each other, and crackle will spread abreast along surface, cause thin slice to be formed at matrix surface, will peel off when again stressed.And the repeatability occurred during ball milling collision squeezes the expansion of oozing phenomenon and contributing to crackle, crackle and hole are completely cut off come, this is similar to fatigue wear, and residual compressive stress lack be conducive to crackle close, therefore, the existence of certain residual compressive stress, can make matrix assemble, and is conducive to the wear resistance improving cylinder sleeve.Those are in the ball milling particle of matrix surface, they are then the spine of friction surface, play a part support loads and wear-resistant, and load can also be made to be uniformly distributed, to reduce the wearing and tearing of matrix, and once some particulate engaging friction contact condition, its all slightly protuberate general, so just form two sliding friction surface, the particulate embedded forms the first sliding friction surface, matrix then forms the second sliding friction surface, and the space between two sliding surfaces can also store a certain amount of lubricating oil and booty, to ensure that the thickness of oil film is uniformly distributed.
Described ball milling is dry grinding or wet-milling, preferably dry grinds.
The quality proportioning of described ball milling steel ball and micro-nano granules is 5:1 ~ 6.9:1, such as 5.2:1,5.4:1,5.6:1,5.8:1,6.0:1,6.2:1,6.4:1,6.6:1 or 6.8:1, preferred 5.3:1 ~ 6.5:1, further preferred 5.5:1 ~ 6.5:1.
Ball milling of the present invention adopts ball mill to carry out, and the rotating speed of ball mill is 1000 ~ 1200r/min, preferably 1020 ~ 118r/min, to meet the requirement of experiment that fatigure failure does not occur cylinder sleeve.The rotating speed of described ball mill is such as 1020r/min, 1040r/min, 1060r/min, 1080r/min, 1100r/min, 1120r/min, 1140r/min, 1160r/min or 1180r/min.
Compared with prior art, the present invention has following beneficial effect:
The present invention adopts high-energy ball milling method, micro-nano granules is squeezed the internal surface oozed in cylinder sleeve, forms surface strengthen layer, effectively can fall and improve cylinder-barrel surface hardness and the amount of reducing wear by the method for extruding, infiltration.
Embodiment
For better the present invention being described, be convenient to understand technical scheme of the present invention, typical but non-limiting embodiment of the present invention is as follows:
Embodiment 1
A preparation method for cylinder-barrel surface strengthening layer, described method is:
(1) cylinder sleeve is soaked 6 hours in diesel oil, arrange a little with hairbrush, be placed on afterwards in the ultrasonic instrument of sanitising agent and carry out edible vegetable oil process, be finally placed in alcohol after soaking half an hour and dry up with blower;
(2) adopt high-energy ball milling method, micro-nano granules is squeezed by the method for extruding, infiltration the internal surface oozed in cylinder sleeve, form surface strengthen layer, described micro-nano granules is serpentine micro-nano granules;
Wherein, the time of described ball milling is 5 hours, and described ball milling is dry grinding, and the quality proportioning of described ball milling steel ball and micro-nano granules is 5:1; The rotating speed of ball mill is 1000r/min.
Embodiment 2
A preparation method for cylinder-barrel surface strengthening layer, described method is:
(1) cylinder sleeve is soaked 6 hours in diesel oil, arrange a little with hairbrush, be placed on afterwards in the ultrasonic instrument of sanitising agent and carry out edible vegetable oil process, be finally placed in alcohol after soaking half an hour and dry up with blower;
(2) adopt high-energy ball milling method, micro-nano granules is squeezed by the method for extruding, infiltration the internal surface oozed in cylinder sleeve, form surface strengthen layer, described micro-nano granules is serpentine micro-nano granules;
Wherein, the time of described ball milling is 9 hours, and described ball milling is dry grinding wet-milling, and the quality proportioning of described ball milling steel ball and micro-nano granules is 6.9:1; The rotating speed of ball mill is 1200r/min.
Embodiment 3
A preparation method for cylinder-barrel surface strengthening layer, described method is:
(1) cylinder sleeve is soaked 6 hours in diesel oil, arrange a little with hairbrush, be placed on afterwards in the ultrasonic instrument of sanitising agent and carry out edible vegetable oil process, be finally placed in alcohol after soaking half an hour and dry up with blower;
(2) adopt high-energy ball milling method, micro-nano granules is squeezed by the method for extruding, infiltration the internal surface oozed in cylinder sleeve, form surface strengthen layer, described micro-nano granules is serpentine micro-nano granules;
Wherein, the time of described ball milling is 7 hours, and described ball milling is dry grinding wet-milling, and the quality proportioning of described ball milling steel ball and micro-nano granules is 6.5:1; The rotating speed of ball mill is 1100r/min.
Embodiment 4
A preparation method for cylinder-barrel surface strengthening layer, described method is:
(1) cylinder sleeve is soaked 6 hours in diesel oil, arrange a little with hairbrush, be placed on afterwards in the ultrasonic instrument of sanitising agent and carry out edible vegetable oil process, be finally placed in alcohol after soaking half an hour and dry up with blower;
(2) adopt high-energy ball milling method, micro-nano granules is squeezed by the method for extruding, infiltration the internal surface oozed in cylinder sleeve, form surface strengthen layer, described micro-nano granules is serpentine micro-nano granules;
Wherein, the time of described ball milling is 7 hours, and described ball milling is dry grinding wet-milling, and the quality proportioning of described ball milling steel ball and micro-nano granules is 6.2:1; The rotating speed of ball mill is 1150r/min.
Embodiment 5
A preparation method for cylinder-barrel surface strengthening layer, described method is:
(1) cylinder sleeve is soaked 6 hours in diesel oil, arrange a little with hairbrush, be placed on afterwards in the ultrasonic instrument of sanitising agent and carry out edible vegetable oil process, be finally placed in alcohol after soaking half an hour and dry up with blower;
(2) adopt high-energy ball milling method, micro-nano granules is squeezed by the method for extruding, infiltration the internal surface oozed in cylinder sleeve, form surface strengthen layer, described micro-nano granules is serpentine micro-nano granules;
Wherein, the time of described ball milling is 8 hours, and described ball milling is dry grinding wet-milling, and the quality proportioning of described ball milling steel ball and micro-nano granules is 6:1; The rotating speed of ball mill is 1140r/min.
Embodiment 6
A preparation method for cylinder-barrel surface strengthening layer, described method is:
(1) cylinder sleeve is soaked 6 hours in diesel oil, arrange a little with hairbrush, be placed on afterwards in the ultrasonic instrument of sanitising agent and carry out edible vegetable oil process, be finally placed in alcohol after soaking half an hour and dry up with blower;
(2) adopt high-energy ball milling method, micro-nano granules is squeezed by the method for extruding, infiltration the internal surface oozed in cylinder sleeve, form surface strengthen layer, described micro-nano granules is serpentine micro-nano granules;
Wherein, the time of described ball milling is 8.5 hours, and described ball milling is dry grinding wet-milling, and the quality proportioning of described ball milling steel ball and micro-nano granules is 5.5:1; The rotating speed of ball mill is 1050r/min.
Applicant states, the present invention illustrates method detailed of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned method detailed, does not namely mean that the present invention must rely on above-mentioned method detailed and could implement.Person of ordinary skill in the field should understand, any improvement in the present invention, to equivalence replacement and the interpolation of ancillary component, the concrete way choice etc. of each raw material of product of the present invention, all drops within protection scope of the present invention and open scope.
Claims (6)
1. the preparation method of a cylinder-barrel surface strengthening layer, it is characterized in that, described method is: adopt high-energy ball milling method, micro-nano granules is squeezed by the method for extruding, infiltration the internal surface oozed in cylinder sleeve, form surface strengthen layer, described micro-nano granules is serpentine micro-nano granules.
2. the method for claim 1, is characterized in that, to remove contamination edible vegetable oil process, and then carry out surface strengthen layer preparation to cylinder sleeve.
3. method as claimed in claim 1 or 2, it is characterized in that, the time of described ball milling is 5 ~ 9 hours, preferably 5.5 ~ 8.5 hours, preferably 6 ~ 8 hours further.
4. the method as described in one of claim 1-3, is characterized in that, described ball milling is dry grinding or wet-milling, preferably dry grinds.
5. the method as described in one of claim 1-4, is characterized in that, the quality proportioning of described ball milling steel ball and micro-nano granules is 5:1 ~ 6.9:1, preferred 5.3:1 ~ 6.5:1, further preferred 5.5:1 ~ 6.5:1.
6. the method as described in one of claim 1-5, is characterized in that, described ball milling adopts ball mill to carry out, and the rotating speed of ball mill is 1000 ~ 1200r/min, preferably 1020 ~ 118r/min.
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| CN201410473515.3A CN104264145A (en) | 2014-09-16 | 2014-09-16 | Preparation method of cylinder jacket surface strengthening layer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113430046A (en) * | 2021-06-08 | 2021-09-24 | 大连海事大学 | Preparation method of friction-induced metal wear-resistant layer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101348908A (en) * | 2007-07-17 | 2009-01-21 | 天津市旭航科技有限公司 | Metal parts wear surface on-line strengthening repair material and preparation thereof |
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- 2014-09-16 CN CN201410473515.3A patent/CN104264145A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101348908A (en) * | 2007-07-17 | 2009-01-21 | 天津市旭航科技有限公司 | Metal parts wear surface on-line strengthening repair material and preparation thereof |
Non-Patent Citations (3)
| Title |
|---|
| 付景国 等: ""高能球磨法制备气缸套表面强化层的技术研究"", 《大连海事大学学报》, vol. 38, no. 4, 30 November 2012 (2012-11-30), pages 81 - 84 * |
| 付景国: ""高能球磨法制备气缸套表面强化层的技术研究"", 《中国优秀硕士学位论文全文数据库》, no. 9, 15 September 2011 (2011-09-15), pages 9 - 23 * |
| 曹娟 等: ""超细蛇纹石粉体改善润滑油摩擦磨损性能的研究"", 《润滑与密封》, vol. 32, no. 12, 31 December 2007 (2007-12-31), pages 53 - 55 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113430046A (en) * | 2021-06-08 | 2021-09-24 | 大连海事大学 | Preparation method of friction-induced metal wear-resistant layer |
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Application publication date: 20150107 |