CN106435506A - Method for solving engine piston scuffing - Google Patents

Method for solving engine piston scuffing Download PDF

Info

Publication number
CN106435506A
CN106435506A CN201610855246.6A CN201610855246A CN106435506A CN 106435506 A CN106435506 A CN 106435506A CN 201610855246 A CN201610855246 A CN 201610855246A CN 106435506 A CN106435506 A CN 106435506A
Authority
CN
China
Prior art keywords
piston
layer
film layer
pit
metal
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
Application number
CN201610855246.6A
Other languages
Chinese (zh)
Other versions
CN106435506B (en
Inventor
廖斌
欧阳晓平
吴先映
张旭
韩然
罗军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Normal University
Original Assignee
Beijing Normal University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Normal University filed Critical Beijing Normal University
Publication of CN106435506A publication Critical patent/CN106435506A/en
Application granted granted Critical
Publication of CN106435506B publication Critical patent/CN106435506B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/48—Ion implantation
    • 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
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/02—Pretreatment of the material to be coated
    • C23C14/021—Cleaning or etching treatments
    • C23C14/022—Cleaning or etching treatments by means of bombardment with energetic particles or radiation
    • 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
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating 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
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/08—Oxides
    • C23C14/081—Oxides of aluminium, magnesium or beryllium
    • 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
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14—Metallic material, boron or silicon
    • C23C14/16—Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
    • 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
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/24—Vacuum evaporation
    • C23C14/32—Vacuum evaporation by explosion; by evaporation and subsequent ionisation of the vapours, e.g. ion-plating
    • C23C14/325—Electric arc evaporation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • F02F3/10—Pistons  having surface coverings
    • F02F3/12—Pistons  having surface coverings on piston heads

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Physical Vapour Deposition (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

The invention relates to a method for solving engine piston scuffing. Heat insulation film layers are deposited on a pit and a throat in the top of a piston, and are used for preventing conducting of heat of a combustion chamber to key components below the piston, and the piston scuffing problem is solved; according to one embodiment, the heat insulation film layers are deposited on the pit and the throat in the top of the piston, wherein the pit and the throat of the top of the piston are subject to surface cleaning; metal elements are injected into the pit and the throat of the top of the piston subject to surface cleaning, and a metal pinning layer is formed; the heat insulation film layers are deposited on the metal pinning layer. According to the heat insulation film layers prepared through the method, the obvious heat isolation effect is achieved, heat conduction of the relative high temperature of the combustion chamber to the key components below the top of the piston is obstructed, the heat expansion amount is obviously reduced, and meanwhile various problems caused by inconsistency of expansion coefficients can be directly solved.

Description

A kind of method solving engine piston scuffing of cylinder bore
Technical field
The present invention relates to material surface modifying technology field, more particularly, to a kind of method solving engine piston scuffing of cylinder bore.
Background technology
Piston is referred to as " heart " of internal combustion engine, bears mechanical load and the thermic load of alternation, is the bar that works in internal combustion engine One of worst key components and partss of part, have special requirement to its material：Thermal coefficient of expansion is little, density is little, heat transfer is conductive Property good, corrosion resistance and wearability etc..
At present, domestic and international vehicle motor all develops to the direction with high power density at a high speed, wherein, diesel truck machine Power per liter improves three times, and the power per liter lifting speed of military vehicle diesel engine is higher.With the significantly strengthening of internal combustion engine, cylinder internal combustion The maximum outbreak pressure of gas gradually rises, and meanwhile, in cylinder, fuel gas temperature also significantly raises, and leads to the work with combustion gas directly contact Plug thermic load increases sharply, and that is, with the raising of electromotor reinforcing degree, the temperature of piston is also gradually increased, and too high temperature Make piston material intensity decreases, and then lead to the elevated temperature strength of piston and bearing capacity to reduce.High temperature and high load capacity etc. are severe Working environment so that piston becomes one of more electromotor zeroth order of fatigue failure, its reliability become restriction entirely start The important goal of machine safe operation.
One of research field that new material technology is China or even the whole world is all paid much attention to, the plan from China " 863 " sets Erect, new material technology is exactly one of important field of research, and material surface modifying technology is new material technology grinds The important directions studied carefully.By suitable surface modification treatment, the multiple performance of material surface, such as material can be significantly improved The material fineness on surface, hardness, wear resistence, antioxidation, heatproof and the performance such as anticorrosive, thus significantly improve the use of material Life-span and work efficiency, realize saving material, reducing the purposes such as energy resource consumption.
Content of the invention
With the significantly strengthening of internal combustion engine, in cylinder, the maximum outbreak pressure of combustion gas gradually rises, and cylinder temperature Constantly raise, the critical component that piston is associated is stable, reliability aspect requirement more and more higher, develops high life, height The piston of stability seems extremely important to the development of internal combustion engine.
In consideration of it, for solving the problems, such as the piston scraping that current electromotor exists, embodiments providing a kind of solution The certainly method of engine piston scuffing of cylinder bore, deposits adiabatic film layer, in order to stop combustor heat at top land pit and aditus laryngis To the conduction of underpiston critical component, solve the problems, such as piston scraping.
Preferably, the described thermal insulation film layer that deposits at top land pit and aditus laryngis includes：In top land pit and larynx Carry out surface clean at mouthful；Injected with metallic elements at the top land pit after surface clean and aditus laryngis, forms metal " pinning Layer "；On described metal " pinning layer ", the adiabatic film layer of deposition.
It is further preferred that carrying out surface clean using metal ion beam at described top land pit and aditus laryngis.
It is further preferred that metallic element used by metal ion beam is Ti, Ni or Al.
It is further preferred that described metallic element is Ti, Ni or Al.
It is further preferred that described thermal insulation film layer is Al2O3Film or TiC-DLC film.
It is further preferred that described thermal insulation film layer is TiC-DLC film.
It is further preferred that voltage during injected with metallic elements is 4-15V；Beam intensity during injected with metallic elements is 1- 15mA；The dosage of injected with metallic elements is 1 × 1014-1×1017/cm2；Depth during injected with metallic elements is 70-120nm.
It is further preferred that using filtered cathodic vacuum arc system during deposition insulation hotting mask layer.
It is further preferred that the thickness of described thermal insulation film layer is 20-30 μm.
With respect to prior art, the embodiment of the present invention has the advantage that：
1st, at top land pit and aditus laryngis, deposition super thick thermal insulation film layer can very easily solve because of heat transfer The problem that the following critical component of piston element bringing brings because thermal coefficient of expansion is inconsistent.
2nd, in terms of film layer technology of preparing：
A () is injected by piston base material is carried out with the metallic element of high-energy, make base material sub-surface atom and injection metal Form " pinning layer " structure, " pinning layer " structure so being formed and basal layer or even the follow-up magnetic of metal-base material atom mixing The adhesion of the structural film layer that filter deposition goes out is all very good, so that its peel strength is enhanced；
B () compares the PVD deposition method such as magnetron sputtering, electron beam evaporation, magnetically filter arc deposition equipment atom ionization level Very high, about more than 90%.Because atom ionization level is high, plasma density can be made to increase, during film forming, bulky grain reduces, Be conducive to improving film hardness, temperature tolerance, wearability, compactness and film-substrate cohesion etc..
Brief description
The accompanying drawing of composition embodiment of the present invention part is used to provide and the embodiment of the present invention is further understood, the present invention Schematic description and description be used for explaining the present invention, be not construed as limiting the invention.
Fig. 1 is that the flow process depositing adiabatic film layer at top land pit and aditus laryngis provided in an embodiment of the present invention is illustrated Figure；
Fig. 2 is thermal insulation film layer structure schematic diagram provided in an embodiment of the present invention；
Fig. 3 (a) is Al provided in an embodiment of the present invention2O3Adiabatic film layer pictorial diagram；
Fig. 3 (b) is TiC-DLC thermal insulation film layer pictorial diagram provided in an embodiment of the present invention；
Fig. 4 (a) is Al provided in an embodiment of the present invention2O3Adiabatic membrane surface metallurgical microscopic；
Fig. 4 (b) is TiC-DLC adiabatic membrane surface provided in an embodiment of the present invention metallurgical microscopic；
Fig. 5 is Al provided in an embodiment of the present invention2O3With thermocouple location during TiC-DLC adiabatic membrane thermal cycle test；
Fig. 6 is Al provided in an embodiment of the present invention2O3, be heated to 100 at TiC-DLC adiabatic membrane and phosphatization piston point for measuring temperature Required time comparison diagram when DEG C -250 DEG C；
Description of reference numerals:
200 piston base materials；210 metal cleaning layers；220 metals " pinning layer "；
230 adiabatic film layers；
Specific embodiment
Below by drawings and Examples, technical scheme is described in further detail.Should be understood to These embodiments are only used for specifically describing in more detail, but are not intended to limit the scope of the invention.
In addition it is also necessary to explanation, this part to the present invention test used in material and test method enter The general description of row.Although for realize many materials that the object of the invention used and operational approach be it is known in the art that But the present invention still here describes in detail as far as possible.It will be apparent to those skilled in the art that within a context, if especially do not said Bright, material therefor of the present invention and operational approach are well known in the art.
Embodiment one
For solving the problems, such as the piston scraping that current electromotor exists, present embodiments provide a kind of solution engine piston The method of scuffing of cylinder bore, deposits adiabatic film layer, in order to stop combustor heat to underpiston pass at top land pit and aditus laryngis The conduction of key member, solves the problems, such as piston scraping.Fig. 1 is provided in an embodiment of the present invention at top land pit and aditus laryngis The schematic flow sheet of the adiabatic film layer of deposition, Fig. 2 is thermal insulation film layer structure schematic diagram provided in an embodiment of the present invention.As shown in figure 1, Methods described includes：
S110, carries out surface clean at top land pit and aditus laryngis.
In one example, surface clean, shape are carried out using metal ion beam at described top land pit and aditus laryngis Become basal layer.Preferably, existed using filtered cathodic vacuum arc (filtered cathodic vacuum arc, FCVA) system Carry out metal ion beam surface clean at top land pit and aditus laryngis.As shown in Fig. 2 carrying out surface at piston base material 200 Cleaning, forms basal layer, i.e. metal cleaning layer 210.This step alternatively, during surface clean metallic element used be Ti, Ni or Al, can be preferably combined with piston base material.It should be noted that in cleaning process, the negative pressure of FCVA system is in 400- 1000V, metal ion beam intensity during cleaning is 300-1000mA.
S120, injected with metallic elements at the top land pit after surface clean and aditus laryngis, form metal " pinning layer ".
In one example, using metal vapor vacuum arc (Metal vapor vacuum arc, MVVA) ion source to Basal layer injected with metallic elements, forms metal " pinning layer ".That is, using high-energy metals ion implanting substrate, metal can be formed With the mixed layer of base material, improve the adhesion of its surface subsequent film and substrate.As shown in Fig. 2 in metal cleaning layer 210 Upper injected with metallic elements, forms metal " pinning layer " 220.
It is pointed out that the metallic element of injection can adopt Ti, Ni or Al.As a kind of optional embodiment, inject During metallic element, injecting voltage is 4-15kV, and beam intensity is 1-15mA, and implantation dosage is 1 × 1014-1×1017/ cm2, injection depth is 70-120nm.
S130, on described metal " pinning layer ", the adiabatic film layer of deposition.
In one example, using filtered cathodic vacuum arc (filtered cathodic vacuum arc, FCVA) System deposits, is passed through reacting gas simultaneously, obtains adiabatic film layer in substrate " pinning layer " surface, Magnetic filter.As shown in Fig. 2 Metal " pinning layer " 220 is deposited above to obtain adiabatic film layer 230.In this step, alternatively, adiabatic film layer is Al2O3Film or TiC doping DLC (diamond-like) thin film etc., that is, adiabatic membrane can be Al2O3Film or TiC-DLC film etc., and the thickness of adiabatic film layer is 20-30μm.Further alternative, adiabatic film layer is TiC-DLC film.
The method of the solution engine piston scuffing of cylinder bore that the present embodiment provides, mainly utilizes metal ion by FCVA system Bundle one of Ti, Al or Ni element carries out surface clean at top land pit and aditus laryngis, passes through (MEVVA system afterwards One of Ti, Al or Ni of injection element prepares metal " pinning layer " in substrate, deposits super thick finally by FCVA system Adiabatic film layer constitutes the agent structure of whole film layer, and thickness is at 20-30 μm simultaneously；This layer utilizes metal ion implantation System defines metal mixed " pinning layer ", makes subsequent deposition film layer and base material have extraordinary bond strength；Simultaneously Have selected the good film layer of insulation effect so as to be deposited on top land pit and aditus laryngis super thick has obvious effect of heat insulation, with When prevent the relatively-high temperature of combustor to the conduction of heat of the following critical component of top land hence it is evident that reducing its thermal expansion amount, with When can directly avoid the various problems brought because the coefficient of expansion is inconsistent.
The technical scheme providing for a better understanding of the present invention, below, it is described with reference to the drawings, with plug top pit and larynx Depositing Al at mouthful2O3And as a example the adiabatic film layer of two kinds of TiC-DLC, detailed introduces solving based on ion beam technology of the present invention The method of engine piston scuffing of cylinder bore, and two kinds of adiabatic film layer progressive of deposition can be analyzed.
Embodiment two
Depositing Al at top land pit and aditus laryngis2O3Adiabatic film layer.Implementation steps are as follows：
S110, prepared by metal cleaning layer 210
Al deposits：Piston base material 200 is fixed on sample stage, rotates sample to depositing target position, start to deposit, that is, to piston Base material 200 carries out surface clean, obtains metal cleaning layer 210.Deposition arc source is the Al arc source of purity 99%, and sedimentary condition is： Vacuum 1 × 10-3-6×10-3Pa, deposits arc stream：100-120A, field supply：1.4-2.4A, arc stream：380-440mA, bears Pressure：400V-1000V, dutycycle 50%-100%, sedimentation time 3-60S, magnetic filter duct is 90 ° of filtrations.
S120, metal " pinning layer " 220 preparations：
Injection：Turn to injection target position to start to inject, on metal cleaning layer 210, inject metal ion, obtain gold Belong to " pinning layer " 220.Injection ion source is the pure Ti of purity 99.9%, and injection condition is：Vacuum 1 × 10-3-6×10-3Pa, Injection arc voltage：50-70V, injecting voltage：6-10kV, arc stream：3-6mA, implantation dosage 1 × 1014-1×1015Ti/cm2.
S130, Al2O3Prepared by super thick heat insulation layer 230：
Al2O3 film deposits：Depositing Al on 2202O3Film 230, sedimentary condition is：Deposition arc source is the Al of purity 99% Arc source, vacuum：1×10-2-6×10-2Pa, deposits arc stream：100-120A, field supply：1.4-2.4A, arc stream：180- 240mA, negative pressure：150V-350V, dutycycle 50%-100%, oxygen air inflow 20-100sccm, deposit thickness is 20-30 μm. Fig. 3 (a) is Al manufactured in the present embodiment2O3Adiabatic film layer pictorial diagram.Subsequently performance test and analysis are carried out to it.
Embodiment three
Depositing Ti C-DLC heat insulation layer at top land pit and aditus laryngis.Implementation steps are as follows：
S110, prepared by metal cleaning layer 210:
Ti deposits：Piston base material 200 is fixed on sample stage, rotates sample and start to deposit to depositing target position.Deposition arc source For the Ti arc source of purity 99%, sedimentary condition is：Vacuum 1 × 10-3-6×10-3Pa, deposits arc stream：100-110A, magnetic field electricity Stream：1.4-2.4A, arc stream：380-440mA, negative pressure：- 400V-1000V, dutycycle 50%-100%, sedimentation time 3-60S, magnetic Filter pipe is 90 ° of filtrations.
S120, prepared by metal " pinning layer " 220：
Injection：Turn to injection target position to start to inject.Injection ion source is the pure Ti of purity 99.9%, and injection condition is： Vacuum 1 × 10-3-6×10-3Pa, injects arc voltage：50-70V, injecting voltage：6-10kV, arc stream：3-6mA, implantation dosage 1 × 1014-1×1015Ti/cm2.
Prepared by S130, TiC-DLC super thick heat insulation layer 230：
TiC-DLC film deposits：Depositing Ti C-DLC film 230 on 220, sedimentary condition is：Deposition arc source is purity 99% Ti arc source, vacuum：1×10-2-6×10-2Pa, deposits arc stream：100-120A, field supply：3.4-5.0A, arc stream： 180-240mA, negative pressure：150V-350V, dutycycle 10%-100%, acetylene gas air inflow 200-300sccm, deposit thickness is 20-30μm.Fig. 3 (b) is TiC-DLC thermal insulation film layer pictorial diagram manufactured in the present embodiment, subsequently it is carried out with performance test and divides Analysis.
It is that super thick heat insulation layer performance is illustrated, can refer to figure Fig. 4 (a) and Fig. 4 (b), Fig. 5 and Fig. 6 here, it is respectively For Al2O3The surface optical shape appearance figure of adiabatic film layer and TiC-DLC thermal insulation film layer, piston cross-section and position of thermocouple figure, with And 500 heat shock cycling result of the test schematic diagrams, it should be noted that as a comparison, bonderizing, Fig. 6 are carried out to piston In also include the heat shock cycling result of the test of phosphatization piston measurement point.And to Al2O3, TiC-DLC super thick thermal insulation film layer carry out firmly Degree test, in test process, its load is 100g, and its overall microhardness result is as shown in table 1.
Table 1 embodiment two and the Al of embodiment three offer2O3Microhardness value with TiC-DLC adiabatic membrane
Test point 1 2 3 4 5 Average hardness
Al2O3Hardness/HV 1836 1467 1776 1680 1620 1675.8
TiC-DLC hardness/HV 2123 2200 2100 2090 2323 2167.2
Understand, Al2O3 super thick heat insulation layer microhardness is up to 1675.8HV, the microhardness of TiC-DLC film layer in conjunction with table 1 Up to 2167.2HV.Fig. 6 is 500 heat shock cycling result of the test schematic diagrams of super thick heat insulation layer, and this test method is according to Q/ LE107.093-2010《Piston Thermal Fatigue Test specification》Carry out.Fig. 5 is shown in the distribution of position of thermocouple and measurement point, its In, A point is thermocouple installation site and measurement point.Can be seen that from analysis of experiments result：
(1) combustor surface is tested through 500 heat shock cycling through the G4700B piston of physical vapour deposition (PVD) process Afterwards, obscission in permeable formation；
(2) piston that the piston of combustor surface physical vapour deposition (PVD) process is processed with surface physics and chemistry 100 DEG C of heating- Under 250 DEG C of same temperature sections, at a temperature of same section of heating, combustor surface is processed through physical vapour deposition (PVD) TiC-DLC All long more than 40S piston heat time heating time of piston specific surface phosphatization, deposits super thick Al2O3The piston of film layer compares phosphatization heat time heating time Piston time delay 20S, illustrates physical vapour deposition (PVD) TiC-DLC and Al2O3Good effect of heat insulation can be played.
The method of the solution engine piston scuffing of cylinder bore that the present invention provides, mainly utilizes metal ion beam by FCVA system Carry out surface clean at top land pit and aditus laryngis, prepared in substrate by MEVVA system injected with metallic elements afterwards Metal " pinning layer ", makes subsequent deposition film layer and base material have extraordinary bond strength, so that its peel strength It is enhanced；Additionally, depositional coating has obvious effect of heat insulation, the relatively-high temperature preventing combustor is to below top land , hence it is evident that reducing its thermal expansion amount, can directly avoid bringing because the coefficient of expansion is inconsistent is various simultaneously for the conduction of heat of critical component Problem.
Although it should be noted that present invention has been a certain degree of description it will be apparent that, without departing from the present invention's The suitable change of each condition under conditions of spirit and scope, can be carried out.Can be understood as the invention is not restricted to described embodiment party Case, and it is attributed to the scope of claim, it includes the equivalent of each factor described.
Above-described specific embodiment, has been carried out to the purpose of the present invention, technical scheme and beneficial effect further Describe in detail, be should be understood that the specific embodiment that the foregoing is only the present invention, be not intended to limit the present invention Protection domain, all any modification, equivalent substitution and improvement within the spirit and principles in the present invention, done etc., all should comprise Within protection scope of the present invention.

Claims (10)

1. a kind of method solving engine piston scuffing of cylinder bore is it is characterised in that deposit adiabatic at top land pit and aditus laryngis Film layer.
2. method according to claim 1 is it is characterised in that described deposit adiabatic membrane at top land pit and aditus laryngis Layer includes：
Carry out surface clean at top land pit and aditus laryngis；
Injected with metallic elements at the top land pit after surface clean and aditus laryngis, forms metal " pinning layer "；
On described metal " pinning layer ", the adiabatic film layer of deposition.
3. method according to claim 2 is it is characterised in that utilize metal ion beam to described top land pit and larynx Carry out surface clean at mouthful.
4. method according to claim 3 is it is characterised in that metallic element used by metal ion beam is Ti, Ni or Al.
5. method according to claim 2 is it is characterised in that described metallic element is Ti, Ni or Al.
6. method according to claim 2 is it is characterised in that described thermal insulation film layer is Al2O3Film or TiC-DLC film.
7. method according to claim 6 is it is characterised in that described thermal insulation film layer is TiC-DLC film.
8. method according to claim 2 is it is characterised in that voltage during injected with metallic elements is 4-15V；Injection metal Beam intensity during element is 1-15mA；The dosage of injected with metallic elements is 1 × 1014-1×1017/cm2；During injected with metallic elements Depth be 70-120nm.
9. method according to claim 2 is it is characterised in that to use magnetic filtering cathode true during deposition insulation hotting mask layer Empty arc system.
10. method according to claim 2 is it is characterised in that the thickness of described thermal insulation film layer is 20-30 μm.
CN201610855246.6A 2015-12-24 2016-09-27 A method of solving engine piston scuffing of cylinder bore Active CN106435506B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510976707 2015-12-24
CN2015109767070 2015-12-24

Publications (2)

Publication Number Publication Date
CN106435506A true CN106435506A (en) 2017-02-22
CN106435506B CN106435506B (en) 2019-03-29

Family

ID=58170517

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610855246.6A Active CN106435506B (en) 2015-12-24 2016-09-27 A method of solving engine piston scuffing of cylinder bore

Country Status (1)

Country Link
CN (1) CN106435506B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1858296A (en) * 2006-06-08 2006-11-08 哈尔滨工业大学 Composite reinforcing and treating method for alumium or alumium alloy substrate surface through ion implantation and deposition
CN101586510A (en) * 2008-05-23 2009-11-25 龙口市大川活塞有限公司 Motorcycle piston
CN104141109A (en) * 2014-06-19 2014-11-12 武汉大学 Method for in-situ synthesis of composite TiC-DLC coating on surface of titanium
JP2015222060A (en) * 2014-05-23 2015-12-10 トヨタ自動車株式会社 Internal combustion piston

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1858296A (en) * 2006-06-08 2006-11-08 哈尔滨工业大学 Composite reinforcing and treating method for alumium or alumium alloy substrate surface through ion implantation and deposition
CN101586510A (en) * 2008-05-23 2009-11-25 龙口市大川活塞有限公司 Motorcycle piston
JP2015222060A (en) * 2014-05-23 2015-12-10 トヨタ自動車株式会社 Internal combustion piston
CN104141109A (en) * 2014-06-19 2014-11-12 武汉大学 Method for in-situ synthesis of composite TiC-DLC coating on surface of titanium

Also Published As

Publication number Publication date
CN106435506B (en) 2019-03-29

Similar Documents

Publication Publication Date Title
US11799094B2 (en) Graphite micro-crystalline carbon coating for metal bipolar plates of fuel cells and application thereof
CN106086765B (en) A kind of anti-CMAS corrosion micron and nanometer composite structure thermal barrier coating and preparation method thereof
DE60222613T2 (en) Method of locally repairing an article coated with a thermal barrier structure
CN102994967B (en) Ultra high speed preparation method for ultra thick diamond-like coating
CN106011771B (en) A kind of device and method in piston ring surface fast deposition DLC film layer
CN102912298B (en) Cr-doped DLC (diamond-like carbon) coating with anticorrosion and antifriction properties and preparation method
CN107699840A (en) The preparation method of porous zirconia thermal barrier coating
KR20140038684A (en) Coating material for intake/exhaust valve and the method for manufacturing thereof
CN107326360A (en) A kind of erosion resistant coating structure of nanometer multilayer graded composite and preparation method thereof
CN102169912A (en) Mo/Ag laminated metal matrix composite for solar cell interconnected sheet and preparation process thereof
CN104070718B (en) A kind of resistance tritium coating and preparation method thereof
CN108060398A (en) A kind of fuel cell composite Nano coating and its plating method
CN105755465A (en) Method and equipment for manufacturing novel smokeless pan based on ion beam technology
CN103695843A (en) Preparation technology of diamond-like film coated spheroidal graphite cast iron piston ring
CN105420669A (en) Vapor deposition method used for anticorrosion pretreatment of permanent magnet
CN103805995B (en) The restorative procedure of carbon/carbon compound material anti-oxidant rhenium/iridium coating layer surface imperfection
CN105773462B (en) A kind of method and apparatus in the skive stick service life that polishing optical glass is improved based on ion beam technology
CN107142478B (en) A kind of novel wear resistant corrosion-resistant finishes
CN106283135A (en) A kind of method introducing rare metal Hf element in the coating
CN104384509A (en) Wear-resistant material capable of resisting high-temperature alloy erosion and preparation method thereof
CN109037708A (en) A kind of 20Cr steel bipolar plates material and preparation method thereof that surface is modified
CN106435506B (en) A method of solving engine piston scuffing of cylinder bore
CN103668061B (en) A kind of coating apparatus of high adhesion force high rigidity low-friction coefficient diamond-film-like
CN103317793B (en) A kind of diamond-like ground mass nano-composite coating cutter and preparation method thereof
CN107130224B (en) A kind of radiation resistance coating production

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant