CN102527601B - Preparation method for blocking preventing coating of spray head of atomizer - Google Patents
Preparation method for blocking preventing coating of spray head of atomizer Download PDFInfo
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- CN102527601B CN102527601B CN2012100527716A CN201210052771A CN102527601B CN 102527601 B CN102527601 B CN 102527601B CN 2012100527716 A CN2012100527716 A CN 2012100527716A CN 201210052771 A CN201210052771 A CN 201210052771A CN 102527601 B CN102527601 B CN 102527601B
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- atomizer
- atomizer sprayer
- sprayer
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- spray head
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Abstract
The invention discloses a preparation method for a blocking preventing coating of a spray head of an atomizer. The preparation method comprises the following steps of: firstly, placing the spray head of the atomizer on a lifting rack and enabling the spray head of the atomizer to be aligned to the center of a conical countersink on a lower positioning plate and to have no clearance with the conical countersink on the lower positioning plate; secondly, adjusting the height of the spray head of the atomizer to allow a certain clearance between the spray head of the atomizer and the lower positioning plate, exhausting air in the spray head of the atomizer, wherein viscous heat insulating coating cannot flow out; thirdly, arranging a metal mandrel with a low melting point at the center of the spray head of the atomizer, adjusting by using the taper above the spray head of the atomizer and the taper below the upper positioning plate to enable the metal mandrel with the low melting point to be positioned at the center of the spray head of the atomizer and the lower end of the metal mandrel with the low melting point to be led out of a through hole at the center of the conical countersink on the lower positioning plate; fourthly, adjusting the height of the upper positioning plate by using a lifting rod and injecting a heat-insulating coating solution inside the spray head of the atomizer by using a hopper; and fifthly, curing the heat-insulating coating solution by using a thermostat. The preparation method disclosed by the invention has the characteristics of simpleness, feasibility, low cost and favorable effect.
Description
Technical field
The invention belongs to the atomized powder preparing technical field, be specifically related to a kind of preparation method of blocking preventing coating of spray head of atomizer.
Background technology
In the preparation process of solder alloy powder and other low melting point powder, the aluminium alloy degree of superheat is lower, and scaling loss is fewer, degree of oxidation is lower, and the atomisation tower height can design lowlyer, because not having, the cooling flakelike powder caused is fewer in time, and the powder agglomerated intensity that enters spray chamber is lower.By test, also find, the atomizer sprayer internal diameter is less simultaneously, and atomized powder is thinner, and sphericity is better.But the atomizer sprayer internal diameter reduces or the aluminium alloy degree of superheat reduces, and all can cause atomizer sprayer easily to stop up, make atomization process interrupt.Through test and analysis, the generation of stopping up is that heat conductivility is good because atomizer sprayer is ferrous materials, and low-temperature atomizing gas flows along the atomizer sprayer outer wall fast, take away amount of heat, make the atomizer sprayer outside wall temperature sharply reduce, and low temperature is passed to the aluminium alloy stream flow through in the liquid pipe, if liquid stream is tiny or the degree of superheat is not high, heat passes to rapidly the outer atomization gas of pipe, cause aluminium alloy flow velocity in atomizer sprayer to slow down, stop up subsequently, the atomization failure.Therefore must explore a kind of method, for the atomizer sprayer inwall prepares the material of one deck heat-insulating property.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the purpose of this invention is to provide a kind of preparation method of blocking preventing coating of spray head of atomizer, there are simple, easy to operate, with low cost, respond well characteristics.
To achieve these goals, the technical solution used in the present invention is: a kind of preparation method of blocking preventing coating of spray head of atomizer comprises the following steps:
At first, atomizer sprayer is placed on lift platform, makes the tapered counterbore central alignment on atomizer sprayer and lower location-plate, guarantee that atomizer sprayer contacts with the tapered counterbore gapless on lower location-plate;
Secondly, adjust the height of atomizer sprayer, make atomizer sprayer and lower location-plate leave gap, discharge the air in atomizer sprayer, the adiabatic coating solution of thickness can not flow out;
Again, the low-melting-point metal core is placed in to the center of atomizer sprayer, utilize tapering on atomizer sprayer and the tapering adjustment under upper location-plate, the ，Qi lower end, center that makes the low-melting-point metal core be positioned at atomizer sprayer from the through hole at tapered counterbore center on location-plate draw;
The 4th, with the height of location-plate in the elevating lever adjustment, with funnel, to atomizer sprayer inside, inject adiabatic coating solution;
The 5th, solidify adiabatic coating solution with insulating box;
Finally, with resistance furnace fusing low-melting-point metal core.
Described low-melting-point metal core fusing point is higher than the solidification temperature of adiabatic coating solution, and its fusing point is also lower than the atomizer sprayer fusing point simultaneously.
The low-melting-point metal core of described fusing and curing adiabatic coating solution do not infiltrate, non-caked.
The invention has the beneficial effects as follows:
Because the present invention has adopted above preparation method, make the present invention have the following advantages: catheter internal diameter size precision is high, the internal diameter convenient formation, and the blocking preventing coating insulation effect is good, can solve blockage problem, improves effective condensation rate effect effect work.
The specific embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment mono-
Referring to accompanying drawing, a kind of preparation method of blocking preventing coating of spray head of atomizer comprises the following steps:
The first, atomizer sprayer is fixed on lift platform, make the tapered counterbore central alignment on atomizer sprayer and lower location-plate, guarantee that atomizer sprayer contacts with the tapered counterbore gapless on lower location-plate;
The second, the height of adjustment atomizer sprayer, make atomizer sprayer and lower location-plate leave the 0.1mm gap, discharges the air in atomizer sprayer, and the adiabatic coating solution of thickness can not flow out;
The 3rd, utilize the Sn-5.0Ag-4.0Cu silk of diameter 1mm as the low-melting-point metal core, be placed in the atomizer sprayer center, can utilize tapering on atomizer sprayer and the tapering adjustment under upper location-plate, make the Sn-5.0Ag-4.0Cu silk of diameter 1mm be positioned at the center of atomizer sprayer, the lower end of Sn-5.0Ag-4.0Cu silk from the through hole at tapered counterbore center on location-plate draw;
The 4th, utilize location-plate height in the elevating lever adjustment, apart from atomizer sprayer upper surface 5cm, utilize funnel to the inner adiabatic coating solution that injects of atomizer sprayer, adiabatic coating solution adopts following proportioning: distilled water 60%, waterglass 20% ,-200 order Zr
2o
3powder 20%, plasticizer adopts CMC, and the plasticizer quality is about 0.2% of adiabatic coating gross mass;
The 5th, then whole device is moved in insulating box together with atomizer sprayer, solidify adiabatic coating solution, heat insulating coating obtains, and calorstat temperature is set as 190 ℃, 150 minutes hardening times;
The 6th, then the atomizer sprayer of acquired heat insulating coating is inserted to resistance furnace and melt away the low-melting-point metal core, can obtain the atomizer sprayer with interior coating, resistance furnace temperature is set as 275 ℃, and the time is 40 minutes.
Embodiment bis-
A kind of preparation method of blocking preventing coating of spray head of atomizer comprises the following steps:
The first, atomizer sprayer is fixed on lift platform, make the tapered counterbore central alignment on atomizer sprayer and lower location-plate, guarantee that atomizer sprayer contacts with the tapered counterbore gapless on lower location-plate;
The second, adjust the atomizer sprayer height, make atomizer sprayer and lower location-plate leave the 0.1mm gap, discharge the air in atomizer sprayer, the adiabatic coating solution of thickness can not flow out;
The 3rd, with the Sn-1Ag-0.5Cu silk of diameter 1mm as the low-melting-point metal core, be placed in the center of atomizer sprayer, utilize tapering on atomizer sprayer and the tapering adjustment under upper location-plate, make the Sn-1Ag-0.5Cu silk of diameter 1mm be positioned at the center of atomizer sprayer, Sn-1Ag-0.5Cu silk lower end from the through hole at tapered counterbore center on location-plate draw;
The 4th, utilize location-plate height in the elevating lever adjustment, apart from atomizer sprayer upper surface 5cm, utilize funnel to the inner adiabatic coating solution that injects of atomizer sprayer, adiabatic coating solution adopts following proportioning: distilled water 60%, waterglass 20% ,-200 order Zr
2o
3powder 20%, plasticizer adopts CMC, and the plasticizer quality is about 0.2% of adiabatic coating gross mass;
The 5th, then whole device is moved in insulating box together with atomizer sprayer, solidify adiabatic coating solution, heat insulating coating obtains, and calorstat temperature is set as 190 ℃, 150 minutes hardening times;
The 6th, then the atomizer sprayer of acquired heat insulating coating is inserted to resistance furnace and melt away the low-melting-point metal core, can obtain the atomizer sprayer with interior coating, resistance furnace temperature is set as 270 ℃, and the time is 40 minutes.
Claims (5)
1. the preparation method of a blocking preventing coating of spray head of atomizer, is characterized in that, comprises the following steps:
At first, atomizer sprayer is placed on lift platform, makes the tapered counterbore central alignment on atomizer sprayer and lower location-plate, guarantee that atomizer sprayer contacts with the tapered counterbore gapless on lower location-plate;
Secondly, adjust the height of atomizer sprayer, make atomizer sprayer and lower location-plate leave gap, discharge the air in atomizer sprayer, the adiabatic coating solution of thickness can not flow out;
Again, the low-melting-point metal core is placed in to the center of atomizer sprayer, utilize tapering on atomizer sprayer and the tapering adjustment under upper location-plate, the ，Qi lower end, center that makes the low-melting-point metal core be positioned at atomizer sprayer from the through hole at tapered counterbore center on location-plate draw;
The 4th, with the height of location-plate in the elevating lever adjustment, with funnel, to atomizer sprayer inside, inject adiabatic coating solution;
The 5th, solidify adiabatic coating solution with insulating box;
Finally, with resistance furnace fusing low-melting-point metal core.
2. the preparation method of a kind of blocking preventing coating of spray head of atomizer according to claim 1, is characterized in that, comprises the following steps:
The first, atomizer sprayer is fixed on lift platform, make the tapered counterbore central alignment on atomizer sprayer and lower location-plate, guarantee that atomizer sprayer contacts with the tapered counterbore gapless on lower location-plate;
The second, the height of adjustment atomizer sprayer, make atomizer sprayer and lower location-plate leave the 0.1mm gap, discharge on the one hand the air in atomizer sprayer, but the adiabatic coating solution of thickness can not flow out;
The 3rd, utilize the Sn-5.0Ag-4.0Cu silk of diameter 1mm as the low-melting-point metal core, be placed in the atomizer sprayer center, can utilize tapering on atomizer sprayer and the tapering adjustment under upper location-plate, make the Sn-5.0Ag-4.0Cu silk of diameter 1mm be positioned at the center of atomizer sprayer, the lower end of Sn-5.0Ag-4.0Cu silk from the through hole at tapered counterbore center on location-plate draw;
The 4th, utilize location-plate height in the elevating lever adjustment, apart from atomizer sprayer upper surface 5cm, utilize funnel to the inner adiabatic coating solution that injects of atomizer sprayer, adiabatic coating solution adopts following proportioning: distilled water 60%, waterglass 20% ,-200 order Zr
2o
3powder 20%, plasticizer adopts CMC, and the plasticizer quality is about 0.2% of adiabatic coating gross mass;
The 5th, then whole device is moved in insulating box together with atomizer sprayer, solidify adiabatic coating solution, heat insulating coating obtains, and calorstat temperature is set as 190 ℃, 150 minutes hardening times;
The 6th, then the atomizer sprayer of acquired heat insulating coating is inserted to resistance furnace and melt away the low-melting-point metal core, can obtain the atomizer sprayer with interior coating, resistance furnace temperature is set as 275 ℃, and the time is 40 minutes.
3. the preparation method of a kind of blocking preventing coating of spray head of atomizer according to claim 1, is characterized in that, comprises the following steps:
The first, atomizer sprayer is fixed on lift platform, make the tapered counterbore central alignment on atomizer sprayer and lower location-plate, guarantee that atomizer sprayer contacts with the tapered counterbore gapless on lower location-plate;
The second, adjust the atomizer sprayer height, make atomizer sprayer and lower location-plate leave the 0.1mm gap, discharge the air in atomizer sprayer, the adiabatic coating solution of thickness can not flow out;
The 3rd, with the Sn-1Ag-0.5Cu silk of diameter 1mm as the low-melting-point metal core, be placed in the center of atomizer sprayer, utilize tapering on atomizer sprayer and the tapering adjustment under upper location-plate, make the Sn-1Ag-0.5Cu silk of diameter 1mm be positioned at the center of atomizer sprayer, Sn-1Ag-0.5Cu silk lower end from the through hole at tapered counterbore center on location-plate draw;
The 4th, utilize location-plate height in the elevating lever adjustment, apart from atomizer sprayer upper surface 5cm, utilize funnel to the inner adiabatic coating solution that injects of atomizer sprayer, adiabatic coating solution adopts following proportioning: distilled water 60%, waterglass 20% ,-200 order Zr
2o
3powder 20%, plasticizer adopts CMC, and the plasticizer quality is about 0.2% of adiabatic coating gross mass;
The 5th, then whole device is moved in insulating box together with atomizer sprayer, solidify adiabatic coating solution, heat insulating coating obtains, and calorstat temperature is set as 190 ℃, 150 minutes hardening times;
The 6th, then the atomizer sprayer of acquired heat insulating coating is inserted to resistance furnace and melt away the low-melting-point metal core, can obtain the atomizer sprayer with interior coating, resistance furnace temperature is set as 270 ℃, and the time is 40 minutes.
4. the preparation method of a kind of blocking preventing coating of spray head of atomizer according to claim 1, is characterized in that, described low-melting-point metal core fusing point is higher than the solidification temperature of adiabatic coating solution, and its fusing point is also lower than the fusing point of atomizer sprayer.
5. the preparation method of a kind of blocking preventing coating of spray head of atomizer according to claim 1, is characterized in that, the low-melting-point metal core of described fusing and curing adiabatic coating solution do not infiltrate, non-caked.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100527716A CN102527601B (en) | 2012-03-02 | 2012-03-02 | Preparation method for blocking preventing coating of spray head of atomizer |
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| CN2012100527716A CN102527601B (en) | 2012-03-02 | 2012-03-02 | Preparation method for blocking preventing coating of spray head of atomizer |
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| CN102527601A CN102527601A (en) | 2012-07-04 |
| CN102527601B true CN102527601B (en) | 2013-12-11 |
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| US10450235B2 (en) | 2012-04-27 | 2019-10-22 | General Electric Company | Method of producing an internal cavity in a ceramic matrix composite and mandrel therefor |
| US10011043B2 (en) * | 2012-04-27 | 2018-07-03 | General Electric Company | Method of producing an internal cavity in a ceramic matrix composite |
| EP3004559B1 (en) | 2013-05-29 | 2020-01-15 | General Electric Company | Method of forming a ceramic matrix composite component with cooling features |
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| US6164954A (en) * | 1998-12-08 | 2000-12-26 | Husky Injection Molding Systems Ltd. | High pressure injection nozzle |
| CN1219616C (en) * | 2002-12-30 | 2005-09-21 | 北京有色金属研究总院 | Method and device for reducing heat loss of metal atomizing flow guide system |
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