CN103018124A - High-speed high-temperature abradable testing machine for sealing coating and experimental method - Google Patents
High-speed high-temperature abradable testing machine for sealing coating and experimental method Download PDFInfo
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- CN103018124A CN103018124A CN2012104962798A CN201210496279A CN103018124A CN 103018124 A CN103018124 A CN 103018124A CN 2012104962798 A CN2012104962798 A CN 2012104962798A CN 201210496279 A CN201210496279 A CN 201210496279A CN 103018124 A CN103018124 A CN 103018124A
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Abstract
The invention discloses a high-speed high-temperature abradable testing machine and a testing method for a sealing coating. The edge part of the wheel disc is provided with a simulation blade, and the wheel disc is connected with a main shaft speed increasing device. The coating sample tool is connected with a feeding device, and the clamping end of the sample tool is aligned with the edge part of the wheel disc. And the flame spraying end of the flame heating device points to the clamping end of the coating sample tool. The test device can simulate the abrasion wear under the real working condition, is better used for researching the abrasion wear mechanism of the sealing material under the high-temperature and high-speed working condition, and can test the abradability of various types of sealing materials, including the sealing materials such as graphite-based sealing coatings, metal-based sealing coatings, ceramic-based sealing coatings and the like.
Description
Technical field
The present invention relates to a kind of abrasion test Apparatus and method for, but relate in particular to a kind of seal coating high-speed and high-temperature abrasion testing machine and experimental technique.
Background technology
The application of abradable seal material in hermetically-sealed construction can effectively reduce the turbomachinery sound and join gas circuit loss between the pair, improve mechanical efficiency, it is the gas-turbine unit field that its typical case uses, and comprises aeromotor, ground gas turbine, marine gas turbine etc.Gas-turbine unit seal structure material (comprising seal coating) is worked in high-speed and high-temperature air-flow environment, and exigent combination property comprises thermal structure intensity and stability, bond strength, anti-erosion property, thermal shock resistance etc.The typical performance of material of obturaging is the abradability energy, and when namely obturaging material and high-speed rotating component generation rubbing action, the desirable material of obturaging can bear whole abrasion wear, and damage or tolerable damage do not occur rotatable parts (blade or comb tooth).Scraping phenomenon between the seal structure sound pair materials can be summarized as the friction problem between the solid and solid under complexity, the extreme operating condition, Gu but scientific circles not yet form theory complete, system to the mechanism of consolidating-rubbing at present, can study the material abradability of obturaging in the world and still mainly rely on experimental technique.
Since last century the fifties, but the research for the sealing of aero-turbine gas circuit and scraping sealing coating material derives multiple test method and relevant device: such as early stage hardness method and hardness scarification, developed afterwards the skimming wear method, the turning method, impact-scraping method and pendulum impact scarification, corresponding equipment from early stage traditional hardness-testing device develop into afterwards pin dish friction wear testing machine, the pendulum impact testing machine in later stage is stronger to the specific aim of the material of obturaging, but their common deficiency is to wear and tear with the high speed scraping of actual condition to also have very large distance.
There are some researches show, when the scraping linear velocity surpassed 100m/s, the fret wear abrasion machine was comprehended the very large transformation of generation.The sliding-type abrasion testing machine of prior art and test method be the scratch type wear characteristic in the realistic apparatus parts well.Therefore, the consistance between the result that the rubbing wear that produces in the actual parts and test obtain is very poor.
Summary of the invention
But the seal coating high-speed and high-temperature abrasion testing machine and the experimental technique that the purpose of this invention is to provide the abrasion wearing and tearing under a kind of energy Reality simulation operating mode, actual abrasion wearing and tearing and test findings high conformity.
The objective of the invention is to be achieved through the following technical solutions:
But seal coating high-speed and high-temperature abrasion testing machine of the present invention comprises wheel disc, flame heating device, sample frock.The edge of described wheel disc is provided with the simulation blade, described wheel disc is connected with the main shaft speeder, described sample frock is connected with feed arrangement, the bare terminal end of described sample frock is over against the edge of described wheel disc, and the flame ejection end of described flame heating device is pointed to the bare terminal end of described sample frock.
But the method that above-mentioned seal coating high-speed and high-temperature abrasion testing machine of the present invention carries out the seal coating abrasion test comprises step:
Seal coating sample and substrate are installed on the sample frock, adjust the coating sample to the position that is fit to, and the initial point of definite feed motion;
Operation control software is so that wheel disc and simulation blade raising speed are to rotating speed of target and maintenance;
The operation flame heating device so that the coating specimen temperature reaches target temperature, and keeps;
Operation control software is so that feed arrangement control coating sample carries out the radial feed motion with the feed rate of setting;
Feeding is finished, and closes each equipment, dismounting simulation blade and coating sample, and to its weighing measurement, and record data;
Comprise following test parameters formulation in the said process:
Carried out the blade tip linear velocity of test simulation by needs, according to the diameter of wheel disc-simulation blade, be converted into the wheel disc speed of mainshaft again, be i.e. the main shaft rotating speed of target of test;
Carry out the single blade of test simulation-coating scrape depth by needs, the quantity of according to rotating speed and the wheel disc of wheel disc-main shaft the simulation blade being installed again calculates scraping p.s. number of times, and the single scrape depth multiply by the speed that scraping p.s. number of times is converted into the feeding of coating sample;
According to the seal coating serviceability temperature, formulate the coating sample heating-up temperature that needs test.
As seen from the above technical solution provided by the invention, but seal coating high-speed and high-temperature abrasion testing machine and test method that the embodiment of the invention provides, owing to comprising wheel disc, flame heating device, the sample frock, the edge of wheel disc is provided with the simulation blade, wheel disc is connected with the main shaft speeder, the sample frock is connected with feed arrangement, the bare terminal end of sample frock is over against the edge of wheel disc, the flame ejection end of flame heating device is pointed to the bare terminal end of sample frock, abrasion wearing and tearing under can the Reality simulation industrial and mineral, wear away preferably the research of abrasion mechanism for the material at high temperature high speed industrial and mineral of obturaging, can test simultaneously the obturage abradability energy of material of all kinds, comprise the graphite-based seal coating, the Metal Substrate seal coating, the materials of obturaging such as ceramic base seal coating.
Description of drawings
But the structural principle schematic diagram of the seal coating high-speed and high-temperature abrasion testing machine that Fig. 1 provides for the embodiment of the invention;
Fig. 2 is the structural principle schematic diagram of the main shaft speeder in the embodiment of the invention;
Fig. 3 is the simulation blade installation structure schematic diagram in the embodiment of the invention;
Fig. 4 is the coating sample heating part structural representation in the embodiment of the invention;
Fig. 5 simulates blade-coating sample scraping abrasion wear schematic diagram in the embodiment of the invention.
Among the figure: 1, wheel disc, 2, balancing weight, 3, high-speed and high-temperature flame, 4, simulation blade, 5, seal coating sample+substrate, 6, thermopair, 7, sample frock, 8, hydrocooler, 9, the piezoelectricity dynamometer, 10, precision ball screw guide rail platform, 11, accurate planetary reducer, 12, servomotor, 13, hand guide rail, 14, main drive motor, 15, large belt wheel, 16, belt, 17, small pulley, 18, high-speed ball bearing, 19, principal axis of compliance, 20, damper, 21, infrared thermometer, 22, pin, 23, flame baffle.
Embodiment
The below will be described in further detail the embodiment of the invention.
But seal coating high-speed and high-temperature abrasion testing machine of the present invention, the embodiment that it is better such as Fig. 1 are to shown in Figure 5:
Comprise wheel disc, flame heating device, sample frock, the edge of described wheel disc is provided with the simulation blade, described wheel disc is connected with the main shaft speeder, described coating sample frock is connected with feed arrangement, the bare terminal end of described sample frock is over against the edge of described wheel disc, and the flame ejection end of described flame heating device is pointed to the bare terminal end of described sample frock.
The edge of a described wheel disc side relative with described simulation blade is provided with balancing weight, and quality is identical with the simulation blade, with equilibrium centrifugation power.
Described simulation blade and counterweight are installed to the edge of described wheel disc by pin or screw, mounting means is simple and reliable.
Described main shaft speeder comprises the large belt wheel of the active that is installed in the main drive motor output shaft end and the driven small pulley that is installed on the principal axis of compliance, the other end of described principal axis of compliance is connected with described wheel disc, be connected by belt between the large belt wheel of described active and the driven small pulley, realize speedup.
Described principal axis of compliance is equipped with damper, and dissipation spindle vibration energy makes wheel disc can cross the critical rotary speed district with less spindle vibration in boosting velocity procedure, and can absorb the spindle vibration that amount of unbalance that the wearing and tearing of blade tip in the abrasion process produce causes.
Described feed arrangement comprises ball-screw precision surface plate and the hand guide rail that is driven by servomotor and precision speed reduction device.
Described sample frock is provided with thermopair, infrared thermometer, hydrocooler, flame baffle.
Be provided with the piezoelectricity dynamometer between described sample frock and the described feed arrangement.
Described flame heating device is oxygen-acetylene torch burner or propane, coal gas, kerosene, gasoline and oxygen mix burner.
The method of material abrasion examination but above-mentioned seal coating high-speed and high-temperature abrasion testing machine of the present invention is obturaged, its better embodiment comprises step:
Seal coating sample+substrate is installed on the sample frock, adjusts the coating sample to the position that is fit to, and the initial point of definite feed motion;
Operation control software is so that wheel disc and simulation blade raising speed are to rotating speed of target and maintenance;
The operation flame heating device so that specimen temperature reaches target temperature, and keeps;
Operation control software is so that the feed arrangement Control Assay carries out the radial feed motion with the feed rate of setting;
Feeding is finished, and closes each equipment, dismounting simulation blade and coating sample, and to its weighing measurement, and record data;
Comprise following test parameters formulation in the said process:
Carried out the blade tip linear velocity of test simulation by needs, according to the diameter of wheel disc-simulation blade, be converted into the wheel disc speed of mainshaft again, be i.e. the rotating speed of target of test;
Carry out the single blade of test simulation-coating scrape depth by needs, the quantity of according to rotating speed and the wheel disc of wheel disc-main shaft the simulation blade being installed again gets scraping p.s. number of times, and the single scrape depth multiply by the speed that scraping p.s. number of times is converted into the feeding of coating sample;
According to the seal coating serviceability temperature, formulate the heating-up temperature of the coating sample that needs test.
The present invention can be used for the obturage abradability energy of material of test turbomachinery gas circuit, is particularly useful for the material of obturaging in the aero-turbine, comprises the abradability energy of the materials of obturaging such as graphite-based seal coating, Metal Substrate seal coating ceramic base seal coating.Relate to that the material abradability of obturaging can be tested and mechanism of abrasion research, especially the research of high-speed and high-temperature abrasion wearing character.
The present invention includes two key elements: the method for abrasion testing machine and test abrasion.
A key element of the present invention provides a kind of abrasion testing machine, this testing machine adopts simulation blade and sealing coating material plane sample as subjects, the simulation blades installation is on wheel disc, wheel disc-simulation blade rotor system is urged to needed rotating speed by the high speed flat belt acceleration system, thereby so that blade tip reaches required linear velocity; The coating sample is installed in above the sample holder frock, by the motion of feed servo system drive sample parts radial feed, adopts precision speed reduction device+precision ball screw platform, can be so that sample carries out the stable feed motion of micron order; The seal coating sample simultaneously, adopts high temperature and high speed oxygen-acetylene torch heating sample, so that can reach required test temperature when carrying out the scraping test;
Another key element of the present invention provides a whole set of material abrasion test method of obturaging, with rotating vane under certain linear velocity motion state with the radially relative displacement of coating as abrasion load, with " blade tip linear velocity ", " coating temperature ", " blade-coating invasion speed " is as three relatively independent important factor in order, by to the variation of the scraping power that collects and to the wearing character test result of coating after the scraping and blade, the examination blade characteristic that wear away wearing and tearing relative to coating can provide strong basic data for the abrasion Study on Wear Mechanism simultaneously.Experimental facilities and test method have guaranteed the abrasion test of reliable simulation industrial and mineral, can obtain the result consistent with actual seal structure sound pair materials abrasion wear characteristic.
Compared with prior art, advantage of the present invention is:
1, invention arranges the simulation blade-material scraping of obturaging abrasion form, and being equal to obturages in the actual turbine engine joins secondary wear characteristic so that sample and simulation blade have.
2, simulation blade tip linear velocity of the present invention can be tested under the state up to 300m/s, and this linear velocity can be simulated the high-speed line speed requirement in most of turbine engines.
3, apparatus of the present invention can be carried out the abrasion test of " single blade+balancing weight " or multiple-blade form.
4, apparatus of the present invention can be so that coating sample step-less adjustment in the scope of feed rate 1.5-2250 μ m/s, owing to adopting servomotor+high speed than precision speed reduction device, when guaranteeing that feed rate satisfies the wear characteristic of simulating under the various operating modes of turbine engine, the stability of feed rate and the reliability of test have also been guaranteed.
5, apparatus of the present invention can so that the coating sample carries out the abrasion test up to 300m/s under 800 ℃ state, satisfy the testing requirements of obturaging material in most of turbine engines.
The above; only for the better embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (10)
1. but seal coating high-speed and high-temperature abrasion testing machine, it is characterized in that, comprise wheel disc, flame heating device, sample frock, the edge of described wheel disc is provided with the simulation blade, described wheel disc is connected with the main shaft speeder, described sample frock is connected with feed arrangement, and the bare terminal end of described sample frock is over against the edge of described wheel disc, and the flame ejection end of described flame heating device is pointed to the bare terminal end of described sample frock.
2. but seal coating high-speed and high-temperature abrasion testing machine according to claim 1 is characterized in that, the edge of a described wheel disc side relative with described simulation blade is provided with balancing weight.
3. but seal coating high-speed and high-temperature abrasion testing machine according to claim 2 is characterized in that, described simulation blade and balancing weight are installed to the edge of described wheel disc by pin or screw.
4. but seal coating high-speed and high-temperature abrasion testing machine according to claim 1, it is characterized in that, described main shaft speeder comprises the large belt wheel of the active that is installed in the main drive motor output shaft end and the driven small pulley that is installed on the principal axis of compliance, one end of described principal axis of compliance is connected with described wheel disc, is connected by belt between the large belt wheel of described active and the driven small pulley.
5. but seal coating high-speed and high-temperature abrasion testing machine according to claim 4 is characterized in that, described principal axis of compliance intermediate support place is equipped with damper.
6. but seal coating high-speed and high-temperature abrasion testing machine according to claim 1 is characterized in that, described feed arrangement comprises ball-screw precision surface plate and the hand guide rail that is driven by servomotor and precision speed reduction device.
7. but seal coating high-speed and high-temperature abrasion testing machine according to claim 6 is characterized in that, described sample frock is provided with thermopair, infrared thermometer, hydrocooler, flame baffle.
8. but seal coating high-speed and high-temperature abrasion testing machine according to claim 1 is characterized in that, is provided with the piezoelectricity dynamometer between described sample frock and the described feed arrangement.
9. but seal coating high-speed and high-temperature abrasion testing machine according to claim 1 is characterized in that, described flame heating device is oxygen-acetylene torch burner or propane, coal gas, kerosene, gasoline and oxygen mix burner.
10. but each described seal coating high-speed and high-temperature abrasion testing machine of claim 1 to 9 method of material abrasion examination of obturaging is characterized in that, comprises step:
Seal coating sample+substrate is installed on the sample frock, adjusts the coating sample to the position that is fit to, and the initial point of definite feed motion;
Operation control software is so that wheel disc and simulation blade raising speed are to rotating speed of target and maintenance;
The operation flame heating device so that specimen temperature reaches target temperature, and keeps;
Operation control software is so that the feed arrangement Control Assay carries out the radial feed motion with the feed rate of setting;
Feeding is finished, and closes each equipment, dismounting simulation blade and sample, and to its weighing measurement, and record data;
Comprise following test parameters formulation in the said process:
Carried out the blade tip linear velocity of test simulation by needs, according to the diameter of wheel disc-simulation blade, be converted into the wheel disc speed of mainshaft again, be i.e. the rotating speed of target of test;
Carry out the single blade of test simulation-coating scrape depth by needs, the quantity of according to rotating speed and the wheel disc of wheel disc-main shaft the simulation blade being installed again gets scraping p.s. number of times, and the single scrape depth multiply by the speed that scraping p.s. number of times is converted into the feeding of coating sample;
According to the seal coating serviceability temperature, formulate the coating sample heating-up temperature that needs test.
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| CN103293078A (en) * | 2013-05-20 | 2013-09-11 | 浙江大学 | High-speed rotary skiving test machine and test method for testing skiving performance of sealing material |
| CN103900958A (en) * | 2014-03-21 | 2014-07-02 | 中国科学院金属研究所 | Method for evaluating scraping performance of sealed coating and material |
| CN108072577A (en) * | 2018-02-08 | 2018-05-25 | 水利部产品质量标准研究所 | A kind of hot-spraying coating toughness detection device and test method |
| CN108120650A (en) * | 2016-11-29 | 2018-06-05 | 沈阳黎明航空发动机(集团)有限责任公司 | One kind can scraping performance detection and evaluation method for seal coating |
| CN109030260A (en) * | 2018-06-06 | 2018-12-18 | 西安交通大学 | A kind of embedded wheeling disk structure based on water erosion pilot system |
| CN109307600A (en) * | 2018-10-15 | 2019-02-05 | 北京矿冶科技集团有限公司 | Abradable coating performance test methods and system |
| CN109357883A (en) * | 2018-10-15 | 2019-02-19 | 北京矿冶科技集团有限公司 | Coating sample heating system, temprature control method and abradable testing machine |
| CN109596445A (en) * | 2018-08-31 | 2019-04-09 | 青岛科技大学 | A kind of characterizing method of rubber abrasion amount |
| CN111855466A (en) * | 2020-07-31 | 2020-10-30 | 矿冶科技集团有限公司 | Method for testing and evaluating abradability of sealing coating |
| CN111929189A (en) * | 2020-09-14 | 2020-11-13 | 矿冶科技集团有限公司 | Method for evaluating abradability of sealing coating through abrasive dust components |
| CN111929187A (en) * | 2020-08-17 | 2020-11-13 | 北京矿冶科技集团有限公司 | Abradable test machine |
| CN111929190A (en) * | 2020-09-14 | 2020-11-13 | 矿冶科技集团有限公司 | Method for evaluating abradability of sealing coating and application thereof |
| CN112129663A (en) * | 2020-09-25 | 2020-12-25 | 武汉钢铁有限公司 | Method and device for evaluating abradability of abradable seal coating |
| CN112903496A (en) * | 2020-12-17 | 2021-06-04 | 中国航空工业集团公司北京航空精密机械研究所 | High-speed brush type sealing test device and system |
| CN113654976A (en) * | 2021-08-13 | 2021-11-16 | 北京航空航天大学 | Aeroengine high pressure rotor blade service environment simulation device |
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| CN103293078A (en) * | 2013-05-20 | 2013-09-11 | 浙江大学 | High-speed rotary skiving test machine and test method for testing skiving performance of sealing material |
| CN103900958A (en) * | 2014-03-21 | 2014-07-02 | 中国科学院金属研究所 | Method for evaluating scraping performance of sealed coating and material |
| CN103900958B (en) * | 2014-03-21 | 2016-08-17 | 中国科学院金属研究所 | A kind of seal coating and material evaluated can the method for scraping performance |
| CN108120650A (en) * | 2016-11-29 | 2018-06-05 | 沈阳黎明航空发动机(集团)有限责任公司 | One kind can scraping performance detection and evaluation method for seal coating |
| CN108072577A (en) * | 2018-02-08 | 2018-05-25 | 水利部产品质量标准研究所 | A kind of hot-spraying coating toughness detection device and test method |
| CN109030260A (en) * | 2018-06-06 | 2018-12-18 | 西安交通大学 | A kind of embedded wheeling disk structure based on water erosion pilot system |
| CN109030260B (en) * | 2018-06-06 | 2020-03-17 | 西安交通大学 | Embedded wheel disc structure based on water erosion test system |
| CN109596445A (en) * | 2018-08-31 | 2019-04-09 | 青岛科技大学 | A kind of characterizing method of rubber abrasion amount |
| CN109307600B (en) * | 2018-10-15 | 2020-07-03 | 北京矿冶科技集团有限公司 | Method and system for testing performance of abradable coating |
| CN109357883A (en) * | 2018-10-15 | 2019-02-19 | 北京矿冶科技集团有限公司 | Coating sample heating system, temprature control method and abradable testing machine |
| CN109307600A (en) * | 2018-10-15 | 2019-02-05 | 北京矿冶科技集团有限公司 | Abradable coating performance test methods and system |
| CN111855466A (en) * | 2020-07-31 | 2020-10-30 | 矿冶科技集团有限公司 | Method for testing and evaluating abradability of sealing coating |
| CN111855466B (en) * | 2020-07-31 | 2023-03-10 | 矿冶科技集团有限公司 | Method for testing and evaluating abradability of sealing coating |
| CN111929187A (en) * | 2020-08-17 | 2020-11-13 | 北京矿冶科技集团有限公司 | Abradable test machine |
| CN111929187B (en) * | 2020-08-17 | 2023-06-27 | 北京矿冶科技集团有限公司 | Abradable testing machine |
| CN111929189A (en) * | 2020-09-14 | 2020-11-13 | 矿冶科技集团有限公司 | Method for evaluating abradability of sealing coating through abrasive dust components |
| CN111929190A (en) * | 2020-09-14 | 2020-11-13 | 矿冶科技集团有限公司 | Method for evaluating abradability of sealing coating and application thereof |
| CN112129663A (en) * | 2020-09-25 | 2020-12-25 | 武汉钢铁有限公司 | Method and device for evaluating abradability of abradable seal coating |
| CN112903496A (en) * | 2020-12-17 | 2021-06-04 | 中国航空工业集团公司北京航空精密机械研究所 | High-speed brush type sealing test device and system |
| CN113654976A (en) * | 2021-08-13 | 2021-11-16 | 北京航空航天大学 | Aeroengine high pressure rotor blade service environment simulation device |
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Application publication date: 20130403 |