CN106148875A - With propane when combustion gas is for the method for superalloy surface spraying wear-resisting coating - Google Patents
With propane when combustion gas is for the method for superalloy surface spraying wear-resisting coating Download PDFInfo
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Abstract
nullThe invention discloses a kind of with propane when combustion gas is for the method for superalloy surface spraying wear-resisting coating，Propane combustion gas and tungsten carbide powder are as the technical way of superalloy object surface wear-resisting coating，Wherein purify by a spraying combustion gas and filter stink agent Economical Purification and the filtration that propane combustion gas is contained within ethyl mercaptan and paraffin wax (shin class) by control system，Improve mixing ratio and velocity package pressure by a lengthening flaring type high flow rate spray nozzle system again，Make tungsten-carbide powder can be concentrated on flame internal flame center at spraying process，Reach to melt completely and tungsten-carbide powder is completely applied to invest superalloy surface formation one wear-resisting coating，Propane combustion gas after the another present invention prevents gasification by a spraying combustion gas constant temperature and pressure liquid-proof networked control systems is become again liquid by gaseous state，Guarantee that spraying combustion gas is delivered to lengthen flaring type high flow rate spray nozzle system with gaseous state shape always and carries out spray procedure，Superalloy surface is made to have more high compressive strength and the wear-resisting coating characteristic of wear-resistant contour performance.
Description
Technical field
The present invention relates to superalloy surface spraying processing procedure, particularly relate to one with propane when combustion gas is for superalloy surface spraying
Wear-resisting coating method.
Background technology
Domestic and international in recent years dealer constantly researches and develops for the application power on superalloy surface so that it is the pressure withstanding degree on superalloy surface
And wear resistence promotes many so that the application of various superalloy can develop continuously, needs more for thing alloy surface comparatively speaking
The requirement threshold of high compressive strength and antiwear characteristic is also more and more high, for example: apply at various gas-turbine engines and blade
Or impeller aspect, and it was used for promoting the technology of superalloy case hardness and endurance at these several years nothing more than adopting with propylene or third
Alkane as spraying combustion gas its tungsten-carbide powder is sprayed at superalloy surface, use formation one wear-resisting coating, but propylene because of
Price quickly goes up, and more makes the supply of goods to stablize, and uses propylene as the spraying combustion gas of spraying processing procedure, causes by shadow
The spraying process efficiency ringing workpiece is greatly reduced, and therefore has part dealer to begin with propane and substitutes propylene as superalloy spray
Apply the spraying combustion gas of high-performance abrasion resisting coating processing procedure, because propane prices is many relative to propylene low price, more can solve to supply
Goods instability problem.And use propane as spray combustion gas, but because being contained within the stink of ethyl mercaptan and paraffin wax (shin class) composition
Agent, can make the servo motor flow meter from being blocked in gas injection automatic doubler surface glouer in spraying processing procedure, and hinder spraying gas circulation
Cannot measure, cause gas injection automatic doubler surface glouer to work as machine, have a strong impact on wear-resisting coating quality and process stability.And because of propane combustion
Gas is belonging to the alkane of a kind of three carbon, and chemical formula is C3H8, because of chemical property own relation easily in spraying process because of
Pressure and circumstance of temperature difference are become again liquid by gaseous state, equally because ethyl mercaptan and paraffin wax (shin class) cause gas injection to be coated with when changing
Servo motor flow meter from being blocked in Bei, and hinder spraying gas circulation to measure, cause gas injection automatic doubler surface glouer to work as machine,
Have a strong impact on wear-resisting coating quality and process stability.
Accordingly, it would be desirable to solve above-mentioned spraying combustion gas shortcoming and the spraying spraying processing procedure with propane replacement propylene as superalloy
The burning gases length of flame of combustion gas and the problem of short of width.
Content of the invention
The technical problem to be solved is to provide one with propane when combustion gas is wear-resistant for superalloy surface spraying
Coating process, its be solve spray processing procedure when will not because of propane combustion gas in smelly agent (comprising ethyl mercaptan and paraffin wax) stick and watch
Take motor flowmeter and pollute wear-resisting coating and impact spraying combustion gas control problem, promote superalloy face coat quality and system
Journey stability.
The present invention also to solve the technical problem that and be to provide a kind of working as with propane to spray combustion gas for superalloy surface spraying
Wear-resisting coating method, it mainly solves spraying combustion gas at spraying process because pressure and circumstance of temperature difference change and become again by gaseous state
Liquid, causes servo motor flowmeter to hinder flow to cause gas injection automatic doubler surface glouer when the problem of machine because of blocking, and removing makes processing procedure
More stable outer further lifting superalloy surface high-performance wear-resisting coating quality.
The present invention separately to solve the technical problem that and be to provide one with propane when combustion gas is wear-resistant for superalloy surface spraying
Coating process, it is to solve in spraying processing procedure because spraying gas flow and flow velocity are not enough, causes the tungsten-carbide powder cannot be by
It is coated in flame flame, and produce superalloy surface and by the problem of complete application one wear-resisting coating, and then completely cannot promote
High flow rate sprays effect makes the wear-resisting coating on superalloy surface reach more high compressive strength and the characteristic such as wear-resisting.
For solving the problems referred to above, the present invention be a kind of with propane when combustion gas is for the side of superalloy surface spraying wear-resisting coating
Method, it is to use propane combustion gas and tungsten carbide powder as the technical way of superalloy abrasion-resistant surface coating, wherein
It is to purify by a spraying combustion gas to filter the stink agent that propane combustion gas is contained within ethyl mercaptan and paraffin wax (shin class) by control system
Economical Purification and filtration, it is to avoid pollute wear-resisting coating because smelly agent sticks servo motor flowmeter and affect combustion gas control
Problem, then improve mixing ratio and velocity package pressure by a lengthening flaring type high flow rate spray nozzle system, improve spraying combustion gas
Flow and speed so that tungsten-carbide powder can be concentrated on flame internal flame center at spraying process, reach to melt simultaneously completely
Tungsten-carbide powder is completely applied and invests the purpose that superalloy surface forms wear-resisting coating, higher anti-according to making superalloy surface have
Compressive Strength and the characteristic such as wear-resistant.
Wherein, it should be noted that propane combustion gas carry out heating and gasifying and purifying, must be by a spraying in filter process
Combustion gas constant temperature and pressure liquid-proof networked control systems, prevents the propane combustion gas after gasification from being become again liquid by gaseous state, fires in order to guaranteeing to spray
Gas is delivered to lengthen flaring type high flow rate spray nozzle system with gaseous state shape always and carries out spray procedure.
More specifically pointing out, this spraying combustion gas purifies filtration control system and is provided with a filtration adsorption space and a gasification space.
More specifically pointing out, this filtration adsorption space is by least more than one water conservancy diversion filter course, coarse net stainless steel steel wool
Filter course, fine-structure mesh stainless steel steel wool filter course and adsorption cotton filter course are constituted.
More specifically point out, this water conservancy diversion filter course with general in reverse V-shaped adsorption plate as most preferred embodiment.
More specifically pointing out, this gasification space is to be made up of zone of heating, heat-insulation layer and gasification layer.
More specifically pointing out, this lengthening flaring type high flow rate spray nozzle system is to be connected a flaring type by an extended type arrival end
High flow rate nozzle exit end combines.
More specifically pointing out, the extended type arrival end of this lengthening flaring type high flow rate spray nozzle system is to extend a lengthening part.
More specifically pointing out, the opening angle of this flaring type high flow rate jet expansion is with 1.0-3.0 degree as optimum value.
Brief description
Fig. 1 is conventional nozzle arrangements sectional view
Fig. 2 is processing procedure schematic diagram of the present invention.
Fig. 3 is that the present invention lengthens the flame schematic diagram that flaring type high flow rate nozzle system is sprayed.
Fig. 4 is that the present invention sprays combustion gas constant temperature and pressure liquid-proof networked control systems schematic diagram.
Fig. 5 is that the present invention sprays combustion gas purifying filtration control system schematic diagram.
Fig. 6 is that the present invention lengthens flaring type high flow rate spray nozzle system cross-sectional schematic.
Fig. 7 is that the present invention lengthens flaring type high flow rate spray nozzle system experimentation test data with reference to figure.
Fig. 8 is that the present invention works as the methods experiment data fit for superalloy object surface spraying wear-resisting coating for the combustion gas with propane
GE F50TF71 code requirement data are with reference to figure.
Description of reference numerals
Nozzle 1
The upstream side of the injector 2
Nozzle exit end 3
Internal aperture A
Entrance B
Outlet C
Baking program a
Object pre-treatment program b
First filter c
Water proof gasification program d
Spray procedure e
Gas cylinder T
Gas receiver T1
Spraying combustion gas purifies filters control system 10
Fuel gas inlet 11
Gas emission pipeline 110
Discharge orifice 1100
Gas outlet 12
Excretion mouth 13
Filter adsorption space 14
Water conservancy diversion filter course 140
Coarse net stainless steel steel wool filter course 141
Fine-structure mesh stainless steel steel wool filter course 142
Adsorption cotton filter course 143
Gasification space 15
Zone of heating 150
Heat-insulation layer 151
Gasification layer 152
Gas injection automatic doubler surface glouer 20
Servo motor flowmeter 21
Lengthen flaring type high flow rate nozzle system 30
Extended type arrival end 31
Oxygen intake 310
Powdering inlet 311
Propane fuel gas inlet 312
High-pressure air inlet 313
Flaring type high flow rate nozzle exit end 32
Lengthening part 33
Spraying combustion gas constant temperature and pressure liquid-proof networked control systems 40
Anti-liquefier 41
Thermostat 42
Thermal detector 43
Constant-voltage equipment 44
Internal aperture A1
Entrance B1
Outlet C1
Flames F exiting
Superalloy K
Wear-resisting coating K1
Paraffin wax M
Detailed description of the invention
The present invention mainly provide a kind of with propane when spraying combustion gas is for the method for superalloy surface spraying wear-resisting coating, its
Crucial processing procedure is use propane as spraying combustion gas, and the tungsten carbide of 8-18% containing cobalt is as superalloy k table to be sprayed on
The dusty spray in face.
Please join shown in Fig. 2, be processing procedure schematic diagram of the present invention, for making tungsten-carbide powder can make in spraying with propane combustion gas
Presenting optimization during journey to merge, (its temperature is to need first to carry out tungsten carbide powder baking program a of one appropriate time and temperature
50-80 degree C, time are 5-10 hour), and for making processed superalloy k surface be available for tungsten-carbide powder complete application,
Also need first to be object pre-treatment program b to superalloy k surface, and object pre-treatment program b includes utilizing the third bronze medal first to object
Surface cleaning, superalloy is screened by recycling high temperature gummed tape, finally utilizes aluminum oxide sand to carry out superalloy k surface
Sandblasting, makes superalloy k form a surface being available for spraying.
Continue, after carrying out baking program a to tungsten-carbide powder and superalloy surface is object pre-treatment program b, to depositing
Propane combustion gas in a gas cylinder T carries out first filter c, makes the dirty contaminant filter in gas cylinder T go
Except carrying out water proof gasification program d again, propane gas heating is gasificated into gaseous state shape and deposits in a gas receiver T1.
But it is contained within ethyl mercaptan and the stink agent of paraffin wax (shin class) as mentioned in prior art because of propane combustion gas, therefore
The present invention need to utilize a spraying combustion gas to purify and filter control system 10 by the ethyl mercaptan in propane combustion gas and paraffin wax Economical Purification
And filter out, to obtain the propane combustion gas of best in quality, the propane fuel gas transmission purifying after filtering is coated with to a gas injection
Standby 20 spray.
Furthermore, the present invention is to utilize a lengthening flaring type high flow rate nozzle system 30 to connect this gas injection automatic doubler surface glouer 20 and carbonization
Tungsten powder, makes tungsten carbide in superalloy k surface spraying program e by this lengthening flaring type high flow rate nozzle system 30
Powder concentrates on flames F exiting internal flame center, reaches to be melted in this superalloy k surface completely and forms a wear-resisting coating K1, coordinates figure
It shown in 3, is that the present invention lengthens the flames F exiting schematic diagram that flaring type high flow rate nozzle system is sprayed.
Propane combustion gas for guaranteeing the present invention starts during carrying out superalloy K surface spraying to protect from spraying processing procedure always
Holding gaseous state, without because the external temperature difference or pressure cause propane combustion gas to be become again the phenomenon of liquid by gaseous state, therefore the present invention is
Prevent the propane combustion gas after gasifying from being become again liquid by gaseous state by a spraying combustion gas constant temperature and pressure liquid-proof networked control systems 40.
Further illustrate spraying combustion gas constant temperature and pressure liquid-proof networked control systems 40 Main Means and the function of the present invention, please coordinate
Shown in Fig. 4, major function is to reach to carry out heating and gasifying to the propane combustion gas in gas cylinder T to form gaseous state shape, and prevents
Propane combustion gas is become again liquid again by gaseous state, and designs this system and mainly substitute propylene as spraying because the present invention changes with propane
Combustion gas, and propane combustion gas is the alkane of a kind of three carbon, chemical formula is C3H8, also known as liquefied petroleum gas, with other hydro carbons
Equally, visible flame is produced when adding sufficient oxygen (Oxygen) and pressure-air (Compressed Air), but because of third
The relation of the chemical property of alkane combustion gas own is easily become again liquid when pressure and circumstance of temperature difference change by gaseous state in spraying process
State, and propane combustion gas once becomes liquid and the servo motor flowmeter 21 in gas injection automatic doubler surface glouer 20 will be made to block, and hinder
Spraying gas circulation cannot measure, and causes gas injection automatic doubler surface glouer 20 to work as machine, causes cannot be carried out last spray procedure e.
Therefore the spraying combustion gas constant temperature and pressure liquid-proof networked control systems 40 of the present invention includes: at least more than one anti-liquefier
41st, thermostat the 42nd, thermal detector the 43rd, constant-voltage equipment 44, and according to actual quantity demand, above-mentioned utensil is arranged on this combustion gas
On steel cylinder T, gas receiver T1 and gas injection automatic doubler surface glouer 20, and spray preventing in combustion gas constant temperature and pressure liquid-proof networked control systems 40
Liquefier 41 (can be a heating electrical blanket), utilizes and chemical defence device 41 is arranged on the gas cylinder that each stage deposits propane combustion gas
In T, gas receiver T1 and gas injection automatic doubler surface glouer 20, heating and gasifying can be carried out at any time to propane combustion gas, make propane combustion gas always
Keep gaseous state.
Another profit, utilizes this thermal detector 43 to coordinate this thermostat 42 to monitor temperature at any time and changes, and the temperature of this thermostat 42
Angle value is that to arrange 50-80 degree C interval, more accurately for once monitor this gas cylinder T, gas receiver T1 when thermal detector 43
And the temperature fall of gas injection automatic doubler surface glouer 20 is abnormal, namely temperature exceeds 50-80 degree C interval, and this thermostat 42 stands
I.e. starting, in making utensil, temperature is maintained at optimum temperature value (i.e. 50-80 degree C is interval) at any time, thus should
Propane combustion gas in gas cylinder T, gas receiver T1 and gas injection automatic doubler surface glouer 20 just will not because of at transmittance process by the temperature difference
Change become again liquid again by gaseous state, and then the servo motor flowmeter 21 in blocking gas injection automatic doubler surface glouer 20, cause spraying
Gas circulation cannot measure, and causes gas injection automatic doubler surface glouer 20 when the problematic phenomenon of machine.
Additionally, because propane combustion gas not only can be become again liquid phenomenon because of difference variation generation by gaseous state at transmittance process, equally
It as pressure change produces the phenomenon being become again liquid by gaseous state, is therefore that the propane combustion gas after preventing purified filtration exists
Being purified to filter during control system 10 is transferred to gas injection automatic doubler surface glouer 20 by spraying combustion gas is affected by external pressure difference,
Make propane combustion gas be become again liquid again by gaseous state shape, therefore purify in this spraying combustion gas and filter control system 10 and gas injection automatic doubler surface glouer
Add this constant-voltage equipment 44 between 20, make propane combustion gas will not be under pressure change at transmittance process by this constant-voltage equipment 44
Impact, wherein the force value of this constant-voltage equipment 44 is with 90-120PSI as optimum value, utilizes this spraying combustion gas to purify accordingly
Filter control system 10 and propane combustion gas can will not purify filtration control system 10 and gas injection automatic doubler surface glouer 20 in this spraying combustion gas
The poor impact that is under pressure in transmittance process is become again liquid by gaseous state.
Spray combustion gas constant temperature and pressure liquid-proof networked control systems 40 through the present invention and really can effectively solve propane combustion gas entirely
Spraying processing procedure (by gas cylinder T gas receiver T1 gas injection automatic doubler surface glouer 20), because gaseous state becomes the phenomenon of liquid again, causes combustion
Servo motor flowmeter 21 in gas blowout automatic doubler surface glouer 20 blocks, and hinders spraying gas circulation to measure, causes combustion gas to spray
Equipment 20 works as machine, the problem having a strong impact on coating quality.
It additionally, please coordinate shown in Fig. 5, is that the present invention sprays combustion gas purifying filtration control system schematic diagram, furtherly again
The bright present invention sprays combustion gas and purifies filtration control system 10 Main Means and function, and its spraying combustion gas purifies filters control system
10 include: the 13rd, a fuel gas inlet the 11st, a gas emission pipeline the 110th a, gas outlet the 12nd, an excretion mouth one filters suction
Attached space 14 and a gasification space 15, and gas emission pipeline 110 is to connect this fuel gas inlet 11 and be arranged at this filtration suction
Below attached space 14, and this gasification space 15 is to arrange above this filter space 14.
Wherein, filter adsorption space 14 be by least one of which more than water conservancy diversion filter course the 140th, a coarse net stainless steel steel wool
Filter course the 141st, a fine-structure mesh stainless steel steel wool filter course 142 and an adsorption cotton filter course 143 are from bottom to top sequentially constituted,
Wherein this water conservancy diversion filter course 140 can be general in reverse V-shaped adsorption plate, and the steel wire of this coarse net stainless steel steel wool filter course 141
Diameter with 1mm as optimum value, the steel wire diameter of this fine-structure mesh stainless steel steel wool filter course 142 is with 0.25mm as optimum value.
This spraying combustion gas purifies the purifying filter type filtering control system 10, will mainly by this filtration adsorption space 14
Paraffin wax M in propane combustion gas filters and removes, and because the granular size of paraffin wax M own differs, therefore filter type is to provide propane combustion
The discharge pipe 110 that gas is connected by fuel gas inlet 11 enters this spraying combustion gas and purifies filtration control system 10 inner bottom,
And filter the discharge orifice 1100 of discharge pipe 110 is upwards discharged into this filtration adsorption space 14, first propane combustion
Gas first can utilize this water conservancy diversion filter course 140 with the general design in reverse V-shaped adsorption plate through the water conservancy diversion filter course 140 of ground floor,
First coarse granule paraffin wax M in propane combustion gas is adsorbed and filters removal.
Although most in propane combustion gas and coarse granule paraffin wax M first can be filtered out by ground floor water conservancy diversion filter course 140,
But actually still there is the paraffin wax M of remaining relatively fine particle in propane combustion gas, therefore this propane combustion gas enters coarse net stainless steel steel in regular turn
Relatively fine particle paraffin wax M in propane combustion gas is carried out by velvet filter course 141 and fine-structure mesh stainless steel steel wool filter course 142 again
Filter and remove.
Water conservancy diversion filter course the 140th, coarse net stainless steel steel wool filter course 141 and fine-structure mesh stainless steel steel wool mistake through ground floor
After filtering layer 142 filters, in propane combustion gas, remaining paraffin wax M particle is very small, but the spraying combustion gas of the present invention purifies and filters
Control system 10 major technique is intended to filter the paraffin wax M in propane combustion gas completely, therefore finally recycles adsorption cotton filter course
Paraffin wax M all in propane combustion gas are filtered removal by 143 more careful trickle hole designs completely.
Accordingly, the paraffin wax M in propane combustion gas is only remaining ethyl mercaptan after filtering adsorption space 14 filtration removal, and ethyl mercaptan
Then enter this gasification space 15 and open such as heating and gasifying, and a zone of heating the 150th a, insulation is sequentially set in this gasification space 15
Layer 151 1 gasification layer 152, first with this zone of heating 150 by after ethyl mercaptan heating and gasifying, keep temperature through this heat-insulation layer 151
Degree enters back into this gasification layer 152.
Last ethyl mercaptan and propane combustion gas are according to the different characteristic of proportion, and ethyl mercaptan is discharged by draining mouth 13, and purified filtration
The propane combustion gas of the optimal matter of gained is then exported by gas outlet 12.
Accordingly, purifying filtration control system 10 through this spraying combustion gas of the present invention really can be effectively by agent smelly in propane combustion gas
(contain ethyl mercaptan and paraffin wax M) Economical Purification and filtering out, solves will not still contain smellyization because of propane combustion gas when spraying processing procedure
Agent (contain ethyl mercaptan and paraffin wax M) and stick the servo motor flowmeter 21 of gas injection automatic doubler surface glouer 20 and pollute coating and impact
Spraying combustion gas control problem.
The present invention purifies via above-mentioned spraying combustion gas and filters control system 10 and the anti-control system of liquefying of spraying combustion gas constant temperature and pressure
System 40, by agent smelly in propane combustion gas (containing ethyl mercaptan and paraffin wax) Economical Purification and filtration, and controls propane combustion gas entirely
Spraying processing procedure transmittance process will not become liquid again because of gaseous state, therefore can really solve the servo horse in gas injection automatic doubler surface glouer 20
Reach flowmeter 21 to result in blockage because sticking smelly agent (containing ethyl mercaptan and paraffin wax), hinder spraying gas circulation to measure
Etc. problem.
The present invention is the high densification of wear-resisting coating K1 on lifting thing alloy K surface further, high rigidity, high prolongation adhesion
Effect, this gas injection automatic doubler surface glouer 20 connects this lengthening flaring type high flow rate nozzle system 30, refers to shown in Fig. 6, is this
Invention lengthens flaring type high flow rate spray nozzle system cross-sectional schematic, this lengthening flaring type high flow rate spray nozzle system 30
It is to be connected a flaring type high flow rate nozzle exit end 32 by an extended type arrival end 31 to combine, wherein this extended type entrance
End 31 is to include a lengthening part 33, and an oxygen intake the 310th a, powdering inlet the 311st, a propane fuel gas inlet 312 and
One high-pressure air inlet 313.
After servo motor flowmeter 21 in this gas injection automatic doubler surface glouer 20 for this propane combustion gas controls output quantity, then via third
Alkane fuel gas inlet 312 enters in this lengthening flaring type high flow rate spray nozzle system 30, this oxygen, tungsten-carbide powder simultaneously
And pressure-air also enters this lengthening gradually by oxygen intake the 310th, powdering inlet 311 and high-pressure air inlet 313 respectively
In expansion type high flow rate spray nozzle system 30, because propane combustion gas belongs to fuel gas, oxygen belongs to combustion-supporting gas, then imposes
Suitable burning-point makes gas produce combustion phenomena and forms a flames F exiting (herein belonging to known technology, repeat no more).
And be to be this extended type entrance at the particular design of the lengthening flaring type high flow rate spray nozzle system 30 of the present invention
Hold 31 extended lengthening parts 33, the length of this extended type arrival end 31, phase can be increased by the design of this lengthening part 33
The lengthening part 33 that more traditional nozzle 1 there is no the present invention designs, and for the embodiment of the present invention, this extended type arrival end
31 length are with interval as optimum value between 110-140mm.
Another particular design is this flaring type high flow rate nozzle exit end 32, is shown that this flaring type is high by the sectional view of Fig. 6
Aperture, the inside A1 of the flow nozzle port of export 32 is the mode presenting and being gradually expanded to export C1 by entrance B1, compares common
It is completely different that aperture, the inside A of nozzle 1 is all consistent design by entrance B to outlet C, and for the embodiment of the present invention,
The openend angle of this flaring type high flow rate nozzle exit end 32 is with interval as optimum value between 1.0-3.0 degree.
Accordingly, the present invention lengthens flaring type high flow rate spray nozzle system 30 is to combine extended type arrival end 31 and flaring type height
The design of the flow nozzle port of export 32, simultaneously via experiment test DOE of the present invention (Design Of Experiment), adjusts
Whole to optimal parameter, level, blending heat energy and kinetic energy (reaction time, reaction temperature, gas flame speed) under conditions of,
Actually reach advantages below.
Propane gas flow rate and flow can be promoted via this lengthening flaring type high flow rate spray nozzle system 30
(160-210SCFH) and improve powder feeding back pressure (80-110PSI), the spraying burning gases length of flame of combustion gas and width are increased
Degree, and tungsten-carbide powder is totally absorbed in flame internal flame center, reach complete syncretizing effect so that tungsten-carbide powder can
It is completely sprayed at this superalloy K surface, and forms high performance wear-resisting coating K1, please refer to shown in Fig. 7, be this
Bright lengthening flaring type high flow rate spray nozzle system experimentation test data are with reference to figure.
Accordingly, the present invention works as the method for superalloy this wear-resisting coating of surface spraying for the combustion gas, technical way with propane
It is that combination (1) spraying combustion gas purifies filtration control system, (2) spray combustion gas constant temperature and pressure liquid-proof networked control systems, (3) add
Long flaring type three kinds of systems of high flow rate spray nozzle system, and really solve ordinary skill disappearance, and then reach following effect.
1st point, spray combustion gas through the present invention and purify and filter control system 10 and really can reach effectively by smelly in propane combustion gas
Agent (contain ethyl mercaptan and paraffin wax) Economical Purification and filter out effect, and then solve when spraying processing procedure because propane combustion gas still contains
There is smelly agent (containing ethyl mercaptan and paraffin wax) to stick the servo motor flowmeter 21 of gas injection automatic doubler surface glouer 20, pollute this wear-resistant
Coating K1 and the problem of impact spraying combustion gas control, and promote process stability.
2nd point, spray combustion gas constant temperature and pressure liquid-proof networked control systems 40 can really control propane combustion gas from spray through the present invention
Apply processing procedure to start to the effect carrying out all persistently keeping during superalloy K surface spraying gaseous state, therefore effectively solve third
Alkane combustion gas, because the temperature difference or pressure reduction are become again the phenomenon of liquid again by gaseous state, causes the servo motor stream in gas injection automatic doubler surface glouer 20
Gauge 21 blocks, and hinders spraying gas circulation to measure, and causes gas injection automatic doubler surface glouer 20 to work as machine problem, promotes further
High performance wear-resisting coating K1 quality.
3rd point, lengthen flaring type high flow rate spray nozzle system 30 really can increase propane combustion gas entirely through the present invention
Flow velocity in spraying processing procedure and flow (160-210SCFH), and increase powder feeding back pressure (80-110PSI), and improve spraying combustion
Tungsten-carbide powder is totally absorbed in flame internal flame center, is reached complete by the burning gases length of flame of gas and width
Syncretizing effect, and then make tungsten-carbide powder can completely be sprayed at this superalloy K surface, formed high-performance compression strength and
Wear-resisting wear-resisting coating K1.
The wear-resisting coating K1 of the present invention obtains data below after people's test, and this wear-resisting coating K1 reaches high fine and close (Porsity
＜ 1%), high rigidity (＞ 1,000HV), strong (＞ 10,000PSI) contour energy wear-resisting coating K1 characteristic requirements of high bond,
This data have been examined and have been met GE F50TF71 code requirement (Required Limits), refer to shown in Fig. 8, be the present invention with
Propane is when combustion gas is for the methods experiment data fit GE F50TF71 specification of superalloy object K surface spraying wear-resisting coating K1
Require data with reference to figure.
In sum, the various embodiments described above and graphic be only presently preferred embodiments of the present invention, when can not with restrictions
Protection of inventors'rights scope, the equalization i.e. generally made according to rights protection scope of the present invention changes and modifies, all should belong to this
Bright in the range of cover.
Claims (10)
1. work as the method for superalloy surface spraying wear-resisting coating for the combustion gas with propane for one kind, it is characterised in that: include:
There is provided a propane as spraying combustion gas and a tungsten carbide as the powder on superalloy surface to be sprayed on, and by propane
Deposit in the gas cylinder of at least one；
Another offer one superalloy simultaneously does object pre-treatment program, and tungsten-carbide powder is carried out baking program；
A spraying combustion gas constant temperature and pressure liquid-proof networked control systems is provided to be arranged at this combustion gas steel steel, a gas receiver and a gas injection
On automatic doubler surface glouer, and this combustion gas steel steel, this gas receiver and this gas injection automatic doubler surface glouer are heated, make propane gas heating gas
Changing and forming gaseous state, wherein this combustion gas steel steel, this gas receiver and this gas injection automatic doubler surface glouer are to be connected with each other, and gas receiver and combustion
Connect a spraying combustion gas between gas blowout automatic doubler surface glouer and purify filtration control system；
Wherein, this spraying combustion gas purifies the propane combustion gas filtering control system reception from gas receiver transmission, and fires propane
Smelly agent Economical Purification and filtering out in gas, is transferred to this gas injection automatic doubler surface glouer after obtaining the propane combustion gas of best in quality again
In；
A lengthening flaring type high flow rate spray nozzle system is provided to connect this gas injection automatic doubler surface glouer, this lengthening flaring type high flow rate
Spray nozzle system receives and purifies propane combustion gas and this tungsten-carbide powder filtering control system from spraying combustion gas, and promotes
Flow during spraying, speed and powder feeding back pressure, make tungsten-carbide powder can concentrate on flame internal flame center and reach to melt completely,
And then it is sprayed at superalloy surface formation one wear-resisting coating.
2. as claimed in claim 1 with propane when combustion gas is for the method for superalloy surface spraying wear-resisting coating, its feature
It is: described object pre-treatment program includes utilizing the third bronze medal first to superalloy surface cleaning, and recycling high temperature gummed tape is to super conjunction
Gold is screened, and finally utilizes aluminum oxide sand to carry out sandblasting to superalloy surface.
3. as claimed in claim 1 with propane when combustion gas is for the method for superalloy surface spraying wear-resisting coating, its feature
Be: the baking program temperature of described tungsten-carbide powder with 50-80 degree C, baking time with 5-10 hour as optimum value.
4. work as the method for superalloy surface spraying wear-resisting coating for the combustion gas, its feature with propane as claimed in claim 1
It is: described spraying combustion gas constant temperature and pressure liquid-proof networked control systems is by least more than one liquid-proof device and thermostat
Constitute, and be disposed on gas cylinder, gas receiver and gas injection automatic doubler surface glouer, and this spraying combustion gas purifies and filters control
Separately connect a constant-voltage equipment between system processed and spraying equipment, and this liquid-proof device is a heating electrical blanket, the temperature of this thermostat
With 50-80 degree C as optimum value, the pressure that this constant voltage is put is with 90-120PSI as optimum value.
5. as claimed in claim 1 with propane when combustion gas is for the method for superalloy surface spraying wear-resisting coating, its feature
It is: described spraying combustion gas constant temperature and pressure liquid-proof networked control systems is additionally provided with at least more than one thermal detector, and is arranged on
On gas cylinder, gas receiver and gas injection automatic doubler surface glouer, to monitor temperature at any time.
6. as claimed in claim 1 with propane when combustion gas is for the method for superalloy surface spraying wear-resisting coating, its feature
Be: described spraying combustion gas purify filter control system be provided with a fuel gas inlet, a gas outlet, one excretion mouth, one
Filtering adsorption space and a gasification space, wherein this fuel gas inlet is to connect a gas emission pipeline and be arranged at this filtration suction
Paraffin wax in stink agent is filtered by filtering adsorption space and adsorbs eliminating by the attached space bottom completely, and by gasification
Ethyl mercaptan in stink agent is gasified by space, and last ethyl mercaptan and propane are according to combustion gas proportion different qualities, and ethyl mercaptan is by draining mouth
Discharge, and purify the propane combustion gas after filtration and discharged by gas outlet.
7. as claimed in claim 1 with propane when combustion gas is for the method for superalloy surface spraying wear-resisting coating, its feature
It is: described lengthening flaring type high flow rate spray nozzle system is to be connected a flaring type high flow rate spray by an extended type arrival end
The mouth port of export combines, and wherein this extended type arrival end is to include a lengthening part, this flaring type high flow rate nozzle exit end
Aperture, inside be design by entrance gradually be expanded to outlet mode.
8. as claimed in claim 6 with propane when combustion gas is for the method for superalloy surface spraying wear-resisting coating, its feature
It is: the filtration adsorption space that described spraying combustion gas purifies filtration control system is stainless by a water conservancy diversion filter course, a coarse net
Steel steel wool filter course, a fine-structure mesh stainless steel steel wool filter course and an adsorption cotton filter course are constituted from bottom to top, wherein should
Water conservancy diversion filter course can be for general in reverse V-shaped adsorption plate, and this coarse net stainless steel steel wool and this fine-structure mesh stainless steel steel wool can be for extremely
Few more than one layer, and the steel wire diameter of this coarse net stainless steel steel wool filter course with 1mm as optimum value, this fine-structure mesh stainless steel
The steel wire diameter of steel wool filter course with 0.25mm as optimum value, and gasification space be by a zone of heating, a heat-insulation layer and
One gasification layer is constituted.
9. as claimed in claim 7 with propane when combustion gas is for the method for superalloy surface spraying wear-resisting coating, its feature
Be: the length of described extended type arrival end with 110-140mm as optimum value, opening of this flaring type high flow rate jet expansion
Bicker degree is with 1.0-3.0 degree as optimum value.
10. as claimed in claim 7 with propane when combustion gas is for the method for superalloy surface spraying wear-resisting coating, it is special
Levy and be: described extended type arrival end includes that an oxygen intake, a powdering inlet, a propane fuel gas inlet and a high pressure are empty
Gas entrance.
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| CN201510152959.1A CN106148875B (en) | 2015-04-02 | 2015-04-02 | The method for being used for superalloy surface spraying wear-resisting coating when combustion gas with propane |
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| CN201510152959.1A CN106148875B (en) | 2015-04-02 | 2015-04-02 | The method for being used for superalloy surface spraying wear-resisting coating when combustion gas with propane |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5929056A (en) * | 1982-08-09 | 1984-02-16 | Kazuya Hirose | Flame spraying method |
| WO2014120357A1 (en) * | 2013-01-31 | 2014-08-07 | Sulzer Metco (Us) Inc. | Optimized thermal nozzle and method of using same |
| CN104110573A (en) * | 2013-04-18 | 2014-10-22 | 气体科技能源概念公司 | Fuel module used for spray gun, fuel cell device, thermal spraying device, thermal deburring device and fullerene manufacturing device |
-
2015
- 2015-04-02 CN CN201510152959.1A patent/CN106148875B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5929056A (en) * | 1982-08-09 | 1984-02-16 | Kazuya Hirose | Flame spraying method |
| WO2014120357A1 (en) * | 2013-01-31 | 2014-08-07 | Sulzer Metco (Us) Inc. | Optimized thermal nozzle and method of using same |
| CN104110573A (en) * | 2013-04-18 | 2014-10-22 | 气体科技能源概念公司 | Fuel module used for spray gun, fuel cell device, thermal spraying device, thermal deburring device and fullerene manufacturing device |
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| CN106148875B (en) | 2018-09-11 |
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