CN110411884A - Thermal shock resistance test method and system - Google Patents

Thermal shock resistance test method and system Download PDF

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Publication number
CN110411884A
CN110411884A CN201910792448.4A CN201910792448A CN110411884A CN 110411884 A CN110411884 A CN 110411884A CN 201910792448 A CN201910792448 A CN 201910792448A CN 110411884 A CN110411884 A CN 110411884A
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CN
China
Prior art keywords
detected
pressure
heating
thermal shock
shock resistance
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CN201910792448.4A
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Chinese (zh)
Inventor
曾小锋
朱福林
张家郡
陈巨喜
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Hengyang Kai Xin Special Material Science And Technology Ltd
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Hengyang Kai Xin Special Material Science And Technology Ltd
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Priority to CN201910792448.4A priority Critical patent/CN110411884A/en
Publication of CN110411884A publication Critical patent/CN110411884A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/60Investigating resistance of materials, e.g. refractory materials, to rapid heat changes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02Column chromatography

Abstract

The present invention relates to a kind of thermal shock resistance test method and system, thermal shock resistance test method includes the following steps: that treating detection piece is heated;Detection piece is treated to be quenched;Treat detection piece pressure and pressure maintaining within a preset period of time.If part fracture to be detected, test terminate within a preset period of time;If part to be detected is unbroken within a preset period of time, the step of executing heating, quenching, pressure and pressure maintaining is recycled, until part to be detected is broken, and counts cycle-index.Thermal shock resistance test method and system provided by the invention have preferable intuitive and instantaneity.

Description

Thermal shock resistance test method and system
Technical field
The present invention relates to field of ceramic preparation technology more particularly to a kind of thermal shock resistance test methods and system.
Background technique
During ceramic use, if change dramatically occurs for environment temperature, the poor ceramics of thermal shock resistance will be generated Crackle or even delamination damage.Therefore, after ceramic making finishes, test need to be can be carried out to the thermal shock resistance of ceramics, with basis The superiority and inferiority of thermal shock resistance preferably controls the quality of production of ceramics.However, intuitive that traditional thermal shock resistance is tested and Instantaneity is poor, can not effectively embody the superiority and inferiority of ceramic thermal shock resistance, causes the precision of test lower.
Summary of the invention
Based on this, it is necessary to which the poor problem of the intuitive and instantaneity tested for traditional thermal shock resistance provides A kind of thermal shock resistance test method and system with preferable intuitive and instantaneity.
A kind of thermal shock resistance test method, includes the following steps:
Detection piece is treated to be heated;
The part to be detected is quenched;
To the part pressure to be detected and pressure maintaining within a preset period of time;And
If the part fracture to be detected, test terminate within a preset period of time;If described to be checked within a preset period of time It is unbroken to survey part, then recycles the step of executing heating, quenching, pressure and pressure maintaining, until the part fracture to be detected, and count and follow Ring number.
In one embodiment, it is described treat the step of detection piece is heated after further include:
The part to be detected is kept the temperature, holding temperature T, soaking time t1, wherein 1100 DEG C≤T≤1200 DEG C, 10min≤t1≤20min。
In one embodiment, described the step of being quenched to the part to be detected, includes:
The part to be detected is carried out it is cooling for the first time, cooling time t2, wherein 5S≤t2≤10S;
To the part to be detected carry out second it is cooling, cooling time t3, wherein 10S < t3≤20S。
It in one embodiment, further include to described to be detected after described the step of being quenched to the part to be detected Part is cleaned and/or is dried.
A kind of thermal shock resistance test macro has heating station, quenching station and pressure station, the thermal shock resistance Test macro includes:
Heating member is installed on the heating station, and for heating part to be detected;
Cooling piece is installed on the cooling station, and for being quenched the part to be detected;
Pressing piece is installed on the pressure station, and for the part pressure to be detected and pressure maintaining.
In one embodiment, the heating member is heating furnace, and the heating furnace includes shell and Heating body, described Shell has heating chamber, and the Heating body is accommodated and is fixed in the heating furnace.
In one embodiment, the heating furnace further includes insulating body, and the insulating body accommodates and is fixed on institute It states in heating chamber, the insulating body is formed with the insulation division for accommodating part to be detected.
In one embodiment, the heating furnace be it is cube shaped, the Heating body include two fire-bars, two The fire-bar is set to two opposite inner sidewalls of the heating chamber, and the insulating body includes insulating base and two insulation Stick, the insulating base are covered in the bottom wall of the heating chamber, and two insulating bars are arranged at intervals at the insulating base, and It is held between two fire-bars, to enclose to set to form the insulation division with the insulating base.
In one embodiment, the cooling piece is water cooling pond, and the water cooling pond includes that the first water cooling pond and second are cold Pond, first water cooling pond and second water cooling pond are for being successively quenched the part part to be detected.
In one embodiment, the pressing piece is pressure testing machine, and the pressure testing machine includes:
Body is provided with pressure test check bit;
It is installed on the actuator of the body, the hydraulic cylinder including pneumatic cylinder and with pneumatic cylinder coaxial arrangement is described Pneumatic cylinder includes air pressure cylinder body and the pneumaticpiston bar through the air pressure cylinder body, and the hydraulic cylinder includes liquid presses piston pole, institute It states liquid presses piston pole and is scalable to and abutted with one end of the pneumaticpiston bar;
Extrusion, is installed on the described one end of pneumaticpiston bar far from the liquid presses piston pole, and with the pressure test Check bit aligned in position, the extrusion are used to provide pressure for the part to be detected;
Pressure sensor, the pressure value provided for detecting the extrusion.
Above-mentioned thermal shock resistance test method and system when thermal shock resistance is tested, are treated detection piece and heat simultaneously suddenly It is cold, so that the temperature of part to be detected sharply changes.In turn, it treats detection piece to press, and between default in section Pressure maintaining illustrates that the thermal shock resistance of part to be detected is lower if part fracture to be detected, test terminate within a preset period of time.If The step of part to be detected is unbroken within a preset period of time, then returns to circulation and execute heating, be quenched, pressure and pressure maintaining, until to Detection piece fracture counts cycle-index at the same time.Cycle-index is higher, then illustrates that the thermal shock resistance of part to be detected is better. It can be seen that above-mentioned thermal shock resistance test method and system, the cycle-index for being broken and counting by observing part to be detected, it can The superiority and inferiority of the thermal shock resistance of intuitive and instant understanding part to be detected, has preferable intuitive and instantaneity.
Detailed description of the invention
Fig. 1 is the flow chart of thermal shock resistance test method in one embodiment of the invention;
Fig. 2 is the flow chart of thermal shock resistance test method in another embodiment of the present invention;
Fig. 3 is the structural schematic diagram of thermal shock resistance test macro heating member in one embodiment of the invention;
Fig. 4 is the overall structure diagram of thermal shock resistance test macro pressing piece in one embodiment of the invention;
Fig. 5 is the side view of thermal shock resistance test macro pressing piece shown in Fig. 4.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing Give preferred embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein Described embodiment.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more saturating It is thorough comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ", " right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases Any and all combinations of the listed item of pass.
Referring to Fig. 1, the present invention relates to a kind of thermal shock resistance test methods.Thermal shock resistance test method includes as follows Step:
S100: it treats detection piece and is heated.
Specifically, detection piece can be treated by heating rod, heating tape, heating sheet or other heating members to be heated. Wherein, part to be detected can be to use ceramics made of silicon nitride or other compositions.In the present embodiment, ceramics have silicon nitride It is made, the ceramics as made of silicon nitride are relatively conventional and using extensively, can facilitate materials.
S200: the part to be detected is quenched.
Specifically, quenching refers to that treating detection piece suddenly is cooled down, so that the temperature of part to be detected is rapidly from high temperature drop To low temperature.Specifically, coolant liquid, cold wind or other cooling fluids can be used to treat detection piece and be quenched.Specifically in this reality It applies in example, treats detection piece using coolant liquid and be quenched.For coolant liquid for cold wind, specific heat capacity is bigger, convenient for quick Absorb the heat of part to be detected, it can be achieved that part to be detected rapid cooling.Moreover, coolant liquid is by way of natural cooling, In Voluntarily it can be cooled down and be recycled after absorbing the temperature of part to be detected, it can be effective energy saving.
And be quenched by treating detection piece, change dramatically occurs for the temperature of part to be detected, can be thermal shock resistance Test provides experiment condition.In the present embodiment, it first carries out and treats detection piece and heated, then execute and treat detection piece progress Quenching.Since ceramics need to be sintered in hot environment in the preparation, directly ceramics are taken out and carried out after sinter molding Quenching, convenient for improving the efficiency of thermal shock resistance test.Moreover, first being heated, then the step of being quenched can prevent part to be detected Subsequent process is influenced because temperature is excessively high.It should be noted that in other embodiments, can also first be quenched, reheat, with So that change dramatically occurs for the temperature of part to be detected.Specially first the temperature of part to be detected is down to it is lower, then by heating Mode steeply rises the temperature of part to be detected.
S300: to the part pressure to be detected and pressure maintaining within a preset period of time.
Specifically, it can treat detection piece by pressing piece, such as pressure testing machine and press.In general, after molding Part to be detected the cylindric of strip is made, pressure testing machine can be facilitated to press.Pressure head when pressure, on pressure testing machine It is contacted with part to be detected, the pressure of pressure head is gradually increased to preset pressure value, and is maintained at preset pressure within a preset period of time Value.Detection piece pressure is treated, so that part to be detected is in certain pressure environment, the production of part face crack to be detected can be accelerated It gives birth to and is broken, in order to improve the testing efficiency of thermal shock resistance.And when pressure maintaining, pressure maintains preset pressure value, pressure wave It is dynamic smaller, pressure oscillation influence caused by experimental results can be reduced, so that test result is more accurate.Then, by right Part to be detected treats the stable pressure of detection piece, the observation that test man can be intuitive and instant part table to be detected within a preset period of time Crackle that face generates and breaking degree judge the thermal shock resistance of part to be detected.
Specifically, treating detection piece and carrying out the dwell pressure of pressure maintaining is F, dwell time t4, wherein 10kg/cm2≤F≤ 30kg/cm2, t4=5S.It should be noted that when the production material of part to be detected changes, dwell pressure F and when pressure maintaining Between t4It can also change.
S400: if the part fracture to be detected, test terminate within a preset period of time;If described within a preset period of time Part to be detected is unbroken, then recycles the step of executing heating, quenching, pressure and pressure maintaining, until the part fracture to be detected, and unite Count cycle-index.
Specifically, when part to be detected is broken within a preset period of time, then stopping is tested.If to be detected within a preset period of time The step of part is unbroken, then executes heating, quenching, pressure and pressure maintaining again.If part to be detected is also unbroken, continues cycling through and hold The step of row heating, quenching, pressure and pressure maintaining, until part to be detected is broken.The cycle-index of part to be detected is i.e. complete to be executed Heating, quenching, pressure and pressure holding step number.After every the step of having executed primary heating, quenching, pressure and pressure maintaining, One cycle number need to be counted, and the cycle-index of the secondary statistics is 1 more than cycle-index before.
Above-mentioned thermal shock resistance test method when in use, is heated and is quenched by treating detection piece, may make to Change dramatically occurs for the temperature of detection piece, provides condition with the test for part thermal shock resistance to be detected.And then treat detection piece It presses, and pressure maintaining within a preset period of time, so that part to be detected is in the environment of certain pressure, can accelerate to be detected The generation of part face crack, in order to improve the testing efficiency of part thermal shock resistance to be detected.If within a preset period of time, to be checked It surveys part to be broken during pressure maintaining, then illustrates that part to be detected is easily broken in temperature environment jumpy, part to be detected Thermal shock resistance it is poor.If part to be detected is unbroken within a preset period of time, illustrate part to be detected in temperature change dramatically In the case where, resisting breakage ability is stronger.Therefore, the step of executing heating, quenching, pressure and pressure maintaining is continued cycling through, until to be checked Survey part fracture.The number of circulation is higher, then illustrates that the resisting breakage ability of part to be detected is stronger, and corresponding Quality Grade is also higher, Thermal shock resistance is also better.
Specifically, different cycle-indexes corresponds to the Quality Grade of different parts to be detected.Cycle-index is higher, then to be checked The Quality Grade for surveying part is higher, and thermal shock resistance is better.For example, it is assumed that disconnected after being defined through heating, quenching, pressure and pressure maintaining The grade split is recorded as zero level quality, the lower Quality Grade of zero level quality representation, positioned at the anti-thermal shock of the part to be detected of zero level Performance is poor.If by heating, quenching, pressure and pressure maintaining after, part to be detected is unbroken, then recycle execute again primary heating, The step of quenching, pressure and pressure maintaining, at this point, cycle-index is recorded as 1,1 corresponding first quality, the part phase to be detected of first quality It is more excellent compared with the part thermal shock resistance to be detected of zero level quality.When cycle-index is 5, corresponding Pyatyi quality illustrates to be detected Part experienced 6 heating, quenching, pressure and pressure maintaining.For Pyatyi quality is compared to zero level quality to level Four quality, thermal shock resistance It can be more excellent.Specifically, acceptable quality is additionally provided in Quality Grade.Acceptable quality can according to the use environment of part to be detected into Row setting.For example, lower grade quality can be set as qualified matter if the general temperature change of environment that uses of part to be detected is smaller Amount, such as three-level quality are acceptable quality.If the variation of ambient temperature that part to be detected uses is larger, higher level matter can be set Amount is acceptable quality, such as Pyatyi quality is acceptable quality.When the Quality Grade of part to be detected is qualified or is more than qualified matter When amount, it can determine that the thermal shock resistance of part to be detected is more excellent.When the Quality Grade of part to be detected is unqualified, can determine that be detected The thermal shock resistance of part is more bad.
It is recorded as preliminary quality by the grade being broken after heating, quenching, pressure and pressure maintaining alternatively, can be also assumed that, Preliminary quality indicates lower Quality Grade.If part to be detected is unbroken, then follows after heating, quenching, pressure and pressure maintaining Ring executes primary heating, quenching, pressure and the step of pressure maintaining again, at this point, cycle-index is recorded as 2,2 corresponding first qualities, one The part to be detected of grade quality is more excellent compared to the part thermal shock resistance to be detected of preliminary quality.When cycle-index is 5, corresponding four Grade quality illustrates that part to be detected experienced 5 heating, quenching, pressure and pressure maintaining.Level Four quality is compared to zero level quality to three-level For quality, thermal shock resistance is more excellent.Specifically, acceptable quality is additionally provided in Quality Grade.Acceptable quality can according to The use environment of detection piece is set.For example, if the general temperature change of environment that uses of part to be detected is smaller, can set compared with Inferior grade quality is acceptable quality, such as level Four quality is acceptable quality, at this point, cycle-index is 5.What if part to be detected used Variation of ambient temperature is larger, then can set higher level quality as acceptable quality, such as six grades of quality are acceptable quality, at this point, Cycle-index is 7.When the Quality Grade of part to be detected is qualification or is more than acceptable quality, the heat resistanceheat resistant of part to be detected can determine that Shock stability is more excellent.When the Quality Grade of part to be detected is unqualified, it can determine that the thermal shock resistance of part to be detected is more bad.
It therefore, during the test, can be by observing intuitively and timely by above-mentioned thermal shock resistance test method The fracture of part to be detected and the number of circulation, and judge the superiority and inferiority of part thermal shock resistance to be detected.
Whether traditional surface that part to be detected is only observed in such a way that single treats detection piece heating and cooling generates For crackle, since the time that part to be detected is only cracked by way of the heating of single and cooling there may be lag Property, the thermal shock resistance for leading to not to treat detection piece, which is made, timely to be judged.Alternatively, generate crackle very little, tester compared with Hardly possible discovery, the performance for causing tester that can not intuitively treat detection piece judge.Or multiple parts to be detected successively into When row thermal shock resistance is tested, multiple parts to be detected do not crack after heating and cooling, and also resulting in tester can not The superiority and inferiority of multiple part thermal shock resistances to be detected is compared and is judged simultaneously, causes the precision of test lower.
And in the present embodiment, by above-mentioned thermal shock resistance test method, stop test in part to be detected fracture, it can Facilitate tester to carry out intuitive to the test of thermal shock resistance and timely observe, has no hysteresis quality.In addition, to cycle-index Statistics, cycle-index is higher, then the Quality Grade of thermal shock resistance is higher, then tester can also be facilitated intuitive and timely grasped The superiority and inferiority of the thermal shock resistance of part to be detected.Moreover, can also pass through multiple parts to be detected when multiple parts to be detected are compared Cycle-index, qualitatively the superiority and inferiority degree of multiple part thermal shock resistances to be detected is compared and is judged so that test Precision is higher and more practical.
Referring to Fig. 2, on the basis of the above embodiments, also being wrapped after S100 treats the step of detection piece is heated It includes:
S500: the part to be detected is kept the temperature, holding temperature T, soaking time t1, wherein 1100 DEG C≤T≤ 1200 DEG C, 10min≤t1≤20min。
Specifically, before which is located at the step of S200 is quenched the part to be detected.
It treats detection piece and carries out isothermal holding in soaking time, can prevent from generating temperature in the different region of part to be detected Difference so that the temperature of entire part to be detected is whole more uniform, and can maintain the condition of high temperature.Therefore, when subsequent to be detected When part is quenched entire part to be detected using coolant liquid, cold wind etc., it also may make entire part to be detected in temperature change In the process, the temperature change in each region is consistent substantially, i.e., the thermal shock resistance base in each region on entire part to be detected Originally it is consistent.Press and during pressure maintaining treating detection piece, the regional area generally to apply pressure on part to be detected. Since the thermal shock resistance in each region on entire part to be detected is consistent substantially, the test result that part to be detected obtains The thermal shock resistance of entire part to be detected can also be represented.
And, it is generally the case that be energy saving, detection piece is generally treated using the coolant liquid of room temperature in quenching and is carried out It is cooling.The temperature reached after part quenching to be detected is also room temperature.On the one hand, freeze without wasting energy to coolant liquid, with The temperature of coolant liquid is reduced, and realizes the quenching for treating detection piece;On the other hand, it can also be achieved recycling for coolant liquid.And Part to be detected is kept the temperature to high pressure, when part to be detected, which is placed in, to be cooled down in the cooling water of room temperature, may make part to be detected Temperature occur change dramatically, form the huge temperature difference, during heat preservation and quenching for part thermal shock resistance to be detected Test improve preferable condition.
Based on any of the above embodiments, the step of S200 is quenched the part to be detected include:
S210: the part to be detected is carried out it is cooling for the first time, cooling time t2, wherein 5S≤t2≤10S;
S220: to the part to be detected carry out second it is cooling, cooling time t3, wherein 10S < t3≤20S。
Since the temperature of part to be detected after heating is generally all higher, after first time is cooling, the temperature of part to be detected is still It is possible that it is relatively high, cause the range of temperature of part to be detected smaller, thus the precision for the thermal shock resistance that test obtains Also poor.And treating detection piece progress cooling for the first time and then carrying out second of cooling, it is ensured that the temperature of part to be detected It is down to lower.By part to be detected after cooling twice, change dramatically can occur for temperature, so that the temperature of part to be detected becomes Change is more able to satisfy test request, and makes the thermal shock resistance for testing resulting part to be detected more accurate.Moreover, by cold twice But the part to be detected after also has lower temperature, with facilitate it is subsequent press to be detected, prevent the temperature of part to be detected It is excessively high and damage pressing piece or scald test man.
Based on any of the above embodiments, after the step of S200 is quenched the part to be detected further include:
S600: the part to be detected is cleaned and/or is dried.
Specifically, S600 clean to the part to be detected and/or the dry S300 that is located at is to the part pressure to be detected And within a preset period of time pressure maintaining the step of before.
Specifically, it clean cloth, baking box etc. can be used treats detection piece and be dried.
Specifically, it carries out quenching to use being cooling water if treating detection piece, needs to treat detection piece progress after quenching It is dry, it is reacted with preventing the cooling water remained on part to be detected from contacting with pressing piece, damages part to be detected.If treating Detection piece carries out being quenched other cooling reagents used be in addition to cooling water, then needs after to quenching to be detected to be detected Part is cleaned and is dried, and cleans and water can be used to be cleaned.To remove the cooling reagent that is adhered on part to be detected, prevent to Detection piece occurs chemical reaction with pressing piece during pressure and damages part to be detected.Make if treating detection piece and carrying out quenching For cooling wind, the surface that can also treat detection piece is cleaned, to remove the foul of part surface adhesion to be detected, so that During pressure, pressing piece can be bonded and press completely with the surface of part to be detected.
Above-mentioned thermal shock resistance test method treats detection piece and is heated and be quenched when thermal shock resistance is tested, so that The temperature for obtaining part to be detected sharply changes.In turn, it treats detection piece to press, and the pressure maintaining in section between default, if Part fracture to be detected within a preset period of time, then test terminates, and illustrates that the thermal shock resistance of part to be detected is lower.If when default Between part to be detected is unbroken in section, then return to circulation and execute heating, be quenched, press and the step of pressure maintaining, up to part to be detected breaks It splits, at the same time, counts cycle-index.Cycle-index is higher, then illustrates that the thermal shock resistance of part to be detected is better.Thus may be used See, above-mentioned thermal shock resistance test method, the cycle-index for being broken and counting by observing part to be detected, can be intuitive and instant Understand the superiority and inferiority of the thermal shock resistance of part to be detected, there is preferable intuitive and instantaneity.
The present invention also provides a kind of thermal shock resistance test macros (not to indicate).Thermal shock resistance test macro has heating Station, quenching station and pressure station.Specifically, thermal shock resistance test macro can have assembly line, heating station, quenching Station and pressure station are set gradually along the extending direction of assembly line.Alternatively, thermal shock resistance test macro can also have peace Dress face, heating station, quenching station and the station that presses are set to the different location of mounting surface.
Please please refer to Fig. 3 and Fig. 4 together, thermal shock resistance test macro include heating member 200, cooling piece (not shown) and Pressing piece 100.
Heating member 200 is installed on heating station, and for heating part 20 to be detected.Specifically, when needing to treat detection piece 20 when being heated, and part 20 to be detected is placed in heating station, and start heating member 200.
In one embodiment, heating member 200 is heating furnace.Heating furnace includes shell 210 and Heating body 220, shell 210 With 210, Heating body 220 is accommodated and is fixed in heating furnace.
Specifically, door body is additionally provided on shell 210, door body is used to open or closes heating chamber 211.Heating body 220 It accommodates and is fixed in heating chamber 211.In general, Heating body 220, for heating, Heating body 220 can be heating rod, add The torrid zone, heating sheet etc..Before testing, heating chamber 211 is opened, part 20 to be detected is placed in heating chamber 211, is then closed Heating chamber 211.And then Heating body 220 works, the temperature in heating chamber 211 rises.It is heating by setting heating member 200 Furnace, so that only have extremely least a portion of heat diffusion during treating detection piece 20 and heating to the outside of shell 210, so as to The utilization rate for promoting heat, is easy to implement the quick heating of part 20 to be detected.
Specifically, temperature sensor and control mainboard are additionally provided in heating chamber 211.When temperature sensor senses to plus When temperature in hot chamber 211 reaches preset temperature value, control mainboard control Heating body 220 stops working, so that heating chamber 211 Interior temperature maintains preset temperature value, and treats detection piece 20 and kept the temperature within a preset time, so that part to be detected 20 The temperature of each section is consistent.When the temperature that temperature sensor detects is lower than preset temperature value, control mainboard control adds Hot main body 220 works, to promote the temperature in heating chamber 211.When preset time terminates, control mainboard also can control heating member 200 stop working.Test man opens door body, and part 20 to be detected is taken out out of heating chamber 211.
Specifically, preset temperature value can be specific temperature value, or some temperature range.
Further, heating furnace further includes insulating body 230.Insulating body 230 is accommodated and is fixed in heating chamber 211, The insulating body 230 is formed with the insulation division for accommodating part 20 to be detected.
Specifically, when insulating body 230 is contained in heating chamber 211, insulating body 230 can be contacted with Heating body 220, Heating body 220 directly transfers heat on insulating body 230.Alternatively, Heating body 220 can also be between insulating body 230 It is transferred heat on insulating body 230 every setting, and by air.Insulating body 230 for insulate part 20 to be detected and add Hot main body 220.Moreover, insulating body 230 also has preferable high temperature resistance, to prevent in the mistake heated to part 20 to be detected Melt in journey because temperature is excessively high.
Specifically, since during heating to part 20 to be detected, the temperature of part 20 to be detected is higher, for convenience of to more A part to be detected 20 carries out replacement or takes out after part 20 to be detected heating terminates, and is provided with metal on part 20 to be detected Silk.Part 20 to be detected is traditionally arranged to be the cylindric of strip.Coil of wire is around on part 20 to be detected, and it is bigger to form internal diameter In the becket of 20 outer diameter of part to be detected.When part 20 to be detected need to being taken out from heating chamber 211 or need to be into heating chamber 211 more It when the part 20 to be detected renewed, can be hooked on becket by using the hooking part with high temperature resistant effect, be placed with facilitating Or part 20 to be detected is taken out, to prevent test man from hand directly being used to take out or place part 20 to be detected from insulation division.
Under normal circumstances, Heating body 220 needs to be powered during heating, by the way that insulating body 230 is arranged, exhausted Form insulation division 233 in edge main body 230, and terminate in part 20 to be detected is anti-in insulation division 233, may make Heating body 220 with Part 20 to be detected insulate, to avoid wire contact with Heating body 220 and causes the short circuit of Heating body 220, thus with compared with Good safety.
Specifically, Heating body 220 can be heating rod, heating sheet etc., and insulating body 230 uses insulating materials system Make, surface indentation forms insulation division 233.Specifically in the present embodiment, heating furnace is cube shaped.Heating body 220 includes Two fire-bars 221, two fire-bars 221 are set to two opposite inner sidewalls of heating chamber 211.Insulating body 230 includes insulation Bottom plate 232 and two insulating bars 231, insulating base 232 are covered in the bottom wall of heating chamber 211, two interval of insulating bar 231 settings It in insulating base 232, and is held between two fire-bars 221, to form insulation division 233 to enclose to set.
Specifically, heating furnace is cube shaped, and heating chamber 211 is cubic space.Heating chamber 211 includes opposite roof And bottom wall, opposite left inner side wall and right inner side wall and rear inner sidewall.Opposite inner wall is formed by door body with rear wall.
Two fire-bars 221 are set in opposite left inner side wall and right inner side wall.Insulating base 232 is covered in bottom wall, Two insulating bars 231 are arranged at intervals on bottom wall, and are located between two fire-bars 221.Moreover, two insulating bars 231 with appoint Fire-bar 221 of anticipating is spaced setting.Insulating base 232 and two insulation strips enclose and set to form insulation division 233.It installs to be detected When part 20, open door body, part 20 to be detected can be placed in insulation division 233 so that the wire on part to be detected 20 with plus Hot item 221 insulate.
Two fire-bars 221 work at the same time, and can effectively promote the rate that temperature rises in heating chamber 211, convenient for be detected Part 20 is rapidly heated, to promote heating efficiency.And two insulating bars 231 and an insulating base 232 enclose jointly and set to form insulation The mode in portion 233, part 20 to be detected are placed in insulation division 233, may make part 20 and fire-bar 221 to be detected completely isolated, Thus there is preferable insulation effect and safety.Moreover, the insulation for setting and being formed is enclosed in insulating bar 231 and the splicing of insulating base 232 233 generation type of portion is relatively simple, convenient for improving the installation effectiveness of insulating body 230.
It should be noted that in other embodiments, heating sheet replacement also can be used in fire-bar 221, and heating sheet can be complete Two inner sidewalls opposite in heating chamber 211 are covered entirely, and insulation board replacement also can be used in insulating bar 231.In addition, in other realities It applies in example, the setting position of fire-bar 221, insulating bar 231 and insulating base 232 can also change.
Cooling piece is installed on cooling station, and for being quenched part 20 to be detected.
Cooling piece is for being quenched the part to be detected 20 after heating, so that change dramatically occurs for temperature to be detected, Meet the requirement of thermal shock resistance test.
Specifically, cooling piece can be fan, water cooling pond or other cooling devices.In the present embodiment, cooling piece is Water cooling pond.The cold water of room temperature is filled in water cooling pond.When taking out part 20 to be detected out of heating furnace, part 20 to be detected is placed In cooling down in water cooling pond.By the way that water cooling pond is arranged, on the one hand, so that the quenching step operation of part to be detected 20 is more simple Single, work efficiency is high.On the other hand, the specific heat capacity of water is larger, and cold water is coated on part 20 to be detected, can absorb part to be detected rapidly Heat on 20, to reach quenching.Moreover, heat in water cooling pond can spread in air after taking out part 20 to be detected And natural cooling, to realize the recycling of water cooling pond, consequently facilitating effective energy saving.
In the present embodiment, water cooling pond includes the first water cooling pond and the second water cooling pond.First water cooling pond and the second water cooling pond It is quenched for successively treating detection piece 20.
Since temperature is generally all higher when part 20 to be detected takes out out of heating furnace, when part 20 to be detected is placed in first When water cooling pond is cooled down, the cold water temperature in the first water cooling pond will rise violently rapidly, so that the temperature of the quenching of part to be detected 20 front and back Poor range is smaller.Therefore, part 20 to be detected is unable to satisfy temperature condition jumpy, leads to the accurate testing of thermal shock resistance It spends lower.At this point, can take out part 20 to be detected out of first water cooling pond, then it is placed in the second water cooling pond and is cooled down.Through After crossing the cooling of the first water cooling pond and the second water cooling pond, change dramatically occurs for the temperature of part 20 to be detected to facilitate test man to operate Part 20 to be detected carries out subsequent step.Moreover, the temperature of part 20 to be detected is lower after the effect of the second water cooling pond, it can also Test man is facilitated to operate the operation that part 20 to be detected carries out subsequent step.
Pressing piece 100 is installed on pressure station, and for treating the pressure of detection piece 20 and pressure maintaining.
Pressing piece 100 is used to press to part 20 to be detected, provides a pressure environment with the test for part 20 to be detected, adds The generation and fracture of speed 20 face crack of part to be detected, can then facilitate test man intuitively to observe test effect.When to be checked When surveying the pressure of part 20, pressure is gradually increased to preset pressure value, and maintains preset pressure value within a preset period of time, is surveyed with facilitating Examination person observes the damaged degree of part 20 to be detected under stable pressure condition, obtain part 20 to be detected under preset pressure value Thermal shock resistance parameter, while can also pressure release variation influenced caused by test result.When need to be to multiple parts to be detected 20 detect and when pressure maintaining, and the pressure of pressure maintaining is equal, with pressure release variation to the thermal shock resistance of multiple parts 20 to be detected The result that can be tested impacts, the convenient comparison that multiple parts 20 to be detected are carried out with thermal shock resistances.
Specifically, pressing piece 100 is pressure testing machine.The limit range of pressure can carry out according to demand on pressure testing machine Setting.The pressure limit that pressure testing machine provides is wider, so that the applicability of thermal shock resistance test macro is stronger.Moreover, pressure Power test machine applies stressed process and can realize automation so that treat detection piece 20 pressure and pressure maintaining period it is more intelligent Change.
By the way that above-mentioned thermal shock resistance test macro is arranged, detection piece 20 is treated by heating member 200 and is heated, cooling piece pair Part 20 to be detected is quenched, so that temperature to be detected sharply changes.In turn, pressing piece 100 treat detection piece 20 into Row pressure, so that part to be detected 20 is in certain pressure environment, can accelerate the generation of 20 face crack of part to be detected and break It splits, in order to improve the testing efficiency of thermal shock resistance.And when pressure maintaining, pressure maintains preset pressure value, and pressure oscillation is smaller, Pressure oscillation influence caused by experimental results can be reduced, so that test result is more accurate.
If part 20 to be detected is broken within a preset period of time, test terminates, and illustrates that part 20 to be detected sharply becomes in temperature Easily broken in the environment of change, the thermal shock resistance of part 20 to be detected is poor.If part 20 to be detected does not break within a preset period of time It splits, then illustrates part 20 to be detected in the case where temperature change dramatically, resisting breakage ability is stronger.Therefore, then heating is reused Part 200, cooling piece and pressing piece 100 repeat to treat detection piece 20 and are heated, are quenched and presss and pressure maintaining, up to part to be detected 20 fractures.The number that heating member 200, cooling piece and pressing piece 100 are reused is higher, then illustrates the resisting breakage of part 20 to be detected Ability is stronger, and corresponding Quality Grade is also higher, and thermal shock resistance is also better.Moreover, be broken by observing part 20 to be detected, and The number reused by record heating member 200, cooling piece and pressing piece 100, understanding part to be detected that can be intuitive and instant The superiority and inferiority of 20 thermal shock resistance has preferable intuitive and instantaneity.Moreover, by above system, it can also be according to repetition Number to the thermal shock resistance of multiple parts 20 to be detected can be carried out test and make comparisons, it is preferably to be checked to obtain thermal shock resistance Part 20 is surveyed, and preferably controls the quality of production of ceramics according to the production process of the part 20 to be detected.
Please refer to fig. 5, in the present embodiment, pressure testing machine includes body 110, actuator 120, extrusion 130 And pressure sensor (not shown).
Body 110 plays support and installation.Pressure test check bit is provided on body 110.Specifically, body 110 Including 115, two mounting racks 114 of rack, pedestal 111 and two fixture blocks 112.Rack 115 is strip.When pressure testing machine is put When being placed on horizontal plane, rack 115 extends along the vertical direction.Two mounting racks 114 are respectively arranged at opposite two of rack 115 Side.Pedestal 111 is arranged at intervals at the side adjacent with mounting rack 114 of rack 115, and is connected by connection frame 113.Pedestal 111 With test surfaces 1111.Setting is parallel to the horizontal plane in test surfaces 1111.
Specifically, pedestal 111 is cuboid, and horizontally extending.It is offered on the test surfaces 1111 of pedestal 111 The fixing groove 1112 of strip, fixing groove 1112 is located at the middle part of pedestal 111, and extends to base along the length direction of pedestal 111 The edges at two ends of seat 111.It is additionally provided on test surfaces 1111 on pedestal 111 and keeps away a hole 1113, the diameter for keeping away a hole 1113 is big It in the width of fixing groove 1112, keeps away a hole 1113 and is connected to fixing groove 1112, and the depth for keeping away a hole 1113 is greater than fixing groove 1112 depth.
Two fixture blocks 112 are arranged at intervals at test surfaces 1111, and define to form pressure test inspection jointly with test surfaces 1111 Location.
Specifically, two fixture blocks 112 extend along the length direction of rack 115.When pressure, part 20 to be detected is placed in pressure Power tests check bit, and is held between two fixture blocks 112.Pass through setting pedestal 111 and two fixture blocks 112, two fixture blocks 112 Test surfaces 1111 are arranged at intervals at, and define to form pressure test check bit jointly with test surfaces 1111.It, directly will be to before pressure Detection piece 20 is held between two fixture blocks 112 fixation that can realize part 20 to be detected, so that the installation letter of part to be detected 20 It is single, convenient for improving pressure efficiency.
Further, in one embodiment, two fixture blocks 112 include fixture block ontology 1121 and connect with fixture block ontology 1121 The mounting blocks 1122 connect.Fixture block ontology 1121 is carried on test surfaces 1111, mounting blocks 1122 and 1112 phase clamping of fixing groove.
Specifically, mounting blocks 1122 are fixedly connected with fixture block ontology 1121.Fixture block ontology 1121 is carried on test surfaces 1111 On, two mounting blocks 1122 are set to fixture block ontology 1121 towards the surface of test surfaces 1111, and are fastened in fixing groove 1112, It is fixed with being realized to two fixture block ontologies 1121.Two fixture block ontologies 1121 and test surfaces 1111 define to form pressure test jointly Check bit.The cell wall of fixing groove 1112 has clamping and position-limiting action to mounting blocks 1122, can prevent mounting blocks 1122 and fixture block Ontology 1121 shakes under the effect of external force, so that the connection between fixture block ontology 1121 and pedestal 111 is more stable and reliable.Cause This, when part 20 to be detected is installed on pressure test check bit, part 20 to be detected can also be stably fixed to two fixture block ontologies Between 1121, so that the reliability of pressure testing machine test is higher.
Moreover, the mode of clamping also makes fixture block ontology 1121 and the mounting means of pedestal 111 relatively simple, convenient for improving The installation effectiveness of fixture block ontology 1121.
Further, since fixing groove 1112 is strip, and the both ends of fixing groove 1112 extend to two end edges of pedestal 111 Edge, therefore, in installation folder block body 1121, two mounting blocks 1122 can fill from the both ends open of fixing groove 1112 respectively Enter, and under the action of extraneous thrust, is slided along fixing groove 1112, and mutually draw close, to clamp part 20 to be detected.When to be detected When the length of part 20 changes, two fixture blocks 112 can be operated and slided along the direction mutually deviated from, so that two fixture blocks 112 Between spacing and part 20 to be detected length be adapted.
Further, in the vertical direction, the depth of fixing groove 1112 is greater than the size of mounting blocks 1122.Work as mounting blocks 1122 when being fastened in fixing groove 1112, is spaced between mounting blocks 1122 and the bottom of fixing groove 1112.Therefore, may be used Reduce the contact area between mounting blocks 1122 and the cell wall of fixing groove 1112, and then mounting blocks 1122 and fixing groove can be reduced Frictional force between 1112 cell wall so that push two fixture block ontologies 1121 mutually draw close or far from during more save Power.
In one embodiment, pressure testing machine further includes fastener, and 112 main body of fixture block is L-shaped block structure, including flat Row the first plate 11211 in test surfaces 1111 and the second plate 11212 perpendicular to test surfaces 1111, on two fixture blocks 112 The first plate 11211 is opposite and interval setting, the second plate 11212 on two fixture blocks 112 prolongs along the direction mutually deviated from It stretches.Mounting hole 194 is provided on each second plate 11212, fastener is arranged in mounting hole 194 and fixing groove 1112.
Specifically, the mounting blocks 1122 on each fixture block 112 are set on the first plate 11211, and on each fixture block 112 The first plate 11211 shifted to install with mounting hole 194.Fastener is arranged in mounting hole 194 and fixing groove 1112, can be further Fixing clip ontology 1121, to prevent the installation of two fixture block ontologies 1121 and pedestal 111 from occurring to loosen and sliding or shaking, Thus part 20 to be detected can be stably installed between two fixture block ontologies 1121, so that pressure testing machine has preferably test Reliability.
The position-limiting action of comprehensive fastener and fixing groove 1112, fixture block 112 can be stably installed on pedestal 111.Therefore, During 20 pressure test of part to be detected, do not occur to slide relatively between two fixture blocks 112, part 20 to be detected can be steadily It is carried on pedestal 111, with the reliability of adherence pressure test machine.
Further, the surface indentation of two mutual directions of fixture block 112 forms mounting groove 1123.
Specifically, the surface of two mutual directions of the first plate 11211 forms mounting groove 1123, the side of mounting groove 1123 The first plate 11211 is extended to backwards to the side of test surfaces 1111, i.e. the side of mounting groove 1123 extends to the first plate 11211 Top surface.When installing part 20 to be detected, the opposite both ends of part 20 to be detected are put into from the top surface of two the first plates 11211 respectively To mounting groove 1123, and with 1123 clamping of mounting groove.The cell wall of mounting groove 1123, which treats detection piece 20, has position-limiting action, can It prevents opposite two fixture blocks 112 of part to be detected 20 from sliding, treats detection piece 20 to facilitate and press.
Further, in one embodiment, the cell wall of mounting groove 1123 is arc surface, and its internal diameter is along the first plate The direction of 11211 top surface to test surfaces 1111 is gradually reduced.
In general, part 20 to be detected is cylindrical-shaped structure, 1123 cell wall of mounting groove of arc surface can be with cylindrical-shaped structure Surface is preferably bonded, and can effectively increase the contact area between 1123 cell wall of part 20 and mounting groove to be detected.Therefore, to be detected Frictional force between 1123 cell wall of part 20 and mounting groove increases, and can prevent the opposite fixture block 112 of part 20 to be detected from sliding, convenient for being promoted The reliability of pressure test.
In addition, the internal diameter of mounting groove 1123 is gradually reduced along the direction of top surface to the test surfaces 1111 of the first plate 11211, During part 20 to be detected is put into mounting groove 1123 at the top surface of the first plate 11211, the surface of part 20 to be detected It can be bonded simultaneously clamping, with the cell wall of mounting groove 1123 gradually to facilitate part 20 to be detected to be caught in.Similarly, when part 20 to be detected is from peace When tankage 1123 is deviate from, part 20 to be detected can be also gradually disengaged with the cell wall of mounting groove 1123, to facilitate the de- of part 20 to be detected Out.
It should be noted that in other embodiments, mounting groove 1123 can also be carried out according to the shape of part 20 to be detected Transformation.For example, the cell wall shape of mounting groove 1123 can be V-arrangement face when part 20 to be detected is triangular pyramid.
Actuator 120 is installed on body 110, including pneumatic cylinder 121 and the hydraulic cylinder 122 being coaxially disposed with pneumatic cylinder 121. Pneumatic cylinder 121 includes air pressure cylinder body 1212 and the pneumaticpiston bar 1211 through air pressure cylinder body 1212.Hydraulic cylinder 122 includes hydraulic Piston rod 1221.Liquid presses piston pole 1221 is scalable to abut with one end of pneumaticpiston bar 1211.Specifically, actuator 120 Positioned at the top of pedestal 111, and it is set in rack 115.And when pneumatic cylinder 121 and the coaxial arrangement of hydraulic cylinder 122, hydraulic cylinder 122 are also located at the top of pneumatic cylinder 121.Pneumaticpiston bar 1211 and 1221 aligned in position of liquid presses piston pole.
Pneumatic cylinder 121 further includes pneumaticpiston (not visible).Air pressure cylinder body 1212 is in hollow body, has air cavity.Air pressure Piston is contained in air cavity, and air cavity is separated to form the first air cavity and the second air cavity.First air cavity is located at the upper of the second air cavity Side.Gas is filled in first air cavity and the second air cavity.The inner wall of first air cavity and the second air cavity is also provided with respectively with One air cavity and the first stomata and the second stomata of the connection of the second air cavity.The first gas is respectively arranged at first stomata and the second stomata Pressure valve and the second air pressure valve.The outside of pressure testing machine is provided with gas source, and gas source is connected to the first air pressure valve and the second air pressure valve, First air pressure valve and the second air pressure valve for controlling the first stomata and the second stomata air inlet respectively.
Pneumaticpiston bar 1211 is installed on the side of pneumaticpiston.Specifically, it is living to be set to air pressure for pneumaticpiston bar 1211 The downside of plug.Pneumaticpiston bar 1211 is arranged in the second air cavity and extend out to outside air pressure cylinder body 1212.
Specifically, the first air pressure valve is opened, and when the second air pressure valve is closed, gas source can be to first the first air cavity of gas interacvity air-filling Interior air pressure is greater than the air pressure in the second air cavity, and generates draught head in the two sides of pneumaticpiston.Pneumaticpiston is pushed, and is driven Pneumaticpiston bar 1211 glides, so that the part that pneumaticpiston bar 1211 stretches out air pressure cylinder body 1212 is increased.In the first air cavity During inflation, the volume of the first air cavity increases, and the volume of the second air cavity gradually decreases.To prevent the air pressure in the second air cavity Excessive and lead to the more difficult promotion of pneumaticpiston bar 1211, while the inflation of the first air cavity, the second air cavity should carry out suitably simultaneously Lose heart.
When pneumaticpiston bar 1211 needs to be reset, the second air pressure valve is opened, and the first air pressure valve is closed, and gas source is to the second gas Chamber inflation.Air pressure in second air cavity is increasingly greater than the air pressure of the first air cavity, and the second air cavity is pushed away with the draught head in the first air cavity It takes offence and piston driving pneumaticpiston bar 1211 is pressed to reset.At the same time, it is also carried out in the first air cavity discouraged.When pneumaticpiston bar After 1211 reset, the tolerance in the first air cavity and the second air cavity is restored to the inactive preceding initial value of pneumaticpiston bar 1211.
Hydraulic cylinder 122 further includes (and the hydraulic piston (not shown) of hydraulic cylinder 1222.Hydraulic cylinder 1222 is in hollow machine Structure has hydraulic cavities.Hydraulic piston is contained in hydraulic cavities, and hydraulic cavities are separated to form the first hydraulic cavities and second hydraulic Chamber.First hydraulic cavities are located at the upside of the second hydraulic cavities.Liquid is filled in first hydraulic cavities and the second hydraulic cavities.First liquid Pressure chamber and the inner wall of the second hydraulic cavities be also provided with respectively with the first hydraulic hole of the first hydraulic cavities and the second hydraulic chamber into communication and Second hydraulic hole.The first hydraulic valve and the second hydraulic valve are respectively arranged at first hydraulic hole and the second hydraulic hole.Pressure test The outside of machine is provided with hydraulic power source, and hydraulic power source is connected to the first hydraulic valve and the second hydraulic valve, the first hydraulic valve and second hydraulic Valve for controlling the first hydraulic hole and the second hydraulic hole feed liquor respectively.
Liquid presses piston pole 1221 is installed on the side of hydraulic piston.Specifically, liquid presses piston pole 1221 is set to hydraulic work The downside of plug.Liquid presses piston pole 1221 is arranged in the second hydraulic cavities and extend out to outside hydraulic cylinder 1222.
Specifically, the first hydraulic valve is opened, and when the second hydraulic valve is closed, hydraulic power source can be filled with liquid into the first hydraulic cavities Body, the first hydraulic intracavity liquid increase, and generate hydraulic pressure difference in the two sides of hydraulic piston.Hydraulic piston is pushed, band hydrodynamic pressure Piston rod 1221 glides, so that the part that liquid presses piston pole 1221 stretches out hydraulic cylinder 1222 is increased.In the first hydraulic cavities into During liquid, the volume of the first hydraulic cavities increases, and the volume of the second hydraulic cavities gradually decreases.To prevent in the second hydraulic cavities Hydraulic excessive and lead to the more difficult promotion of piston rod, while the first hydraulic cavities feed liquor, the second hydraulic cavities should carry out suitably simultaneously Drainage.
When liquid presses piston pole 1221 needs to retract, the second hydraulic valve is opened, and the first hydraulic valve is closed, in the second hydraulic cavities Feed liquor.Hydraulic, hydraulic piston drive liquid presses piston pole 1221 of hydraulic increasingly greater than the first hydraulic cavities in second hydraulic cavities Divide and is retracted in hydraulic cylinder 1222.At the same time, drainage is also carried out in the first hydraulic cavities.
In the present embodiment, one end that liquid presses piston pole 1221 stretches out the second hydraulic cavities also connects with pneumaticpiston bar 1211 It connects.One end of liquid presses piston pole 1221 is scalable to abut with one end of pneumaticpiston bar 1211.Specifically, in hydraulic cylinder 122 When starting, liquid presses piston pole 1221 slides axially along it, so that the part that liquid presses piston pole 1221 stretches out hydraulic cylinder 1222 increases It is more, and it is connected to one end of pneumaticpiston bar 1211.At this point, liquid presses piston pole 1221 applies to pneumaticpiston bar 1211 towards pressure The active force of power test check bit.Alternatively, liquid presses piston pole 1221 slides axially along it, gradually contracts when hydraulic cylinder 122 starts It is back to hydraulic cylinder 1222, at this point, the part that liquid presses piston pole 1221 stretches out hydraulic cylinder 1222 is reduced, it is hydraulic to pneumaticpiston Bar 1211 applies the active force backwards to pressure test check bit.When hydraulic cylinder 122 does not start, liquid presses piston pole 1221 and gas It presses between piston rod 1211 without interactively.
Specifically, the interactively between liquid presses piston pole 1221 and pneumaticpiston bar 1211 is realized by pneumaticpiston. Liquid presses piston pole 1221 stretches out one end of the second hydraulic cavities and pneumaticpiston is connected backwards to one end of pneumaticpiston bar 1211.Specifically Ground, can be by rope between liquid presses piston pole 1221 and pneumaticpiston, and lock etc. is attached, and liquid presses piston pole 1221 and gas Pressing has certain buffer distance between piston.In the present embodiment, pneumatic cylinder 121 can individually work, can also with it is hydraulic Cylinder 122 acts synergistically.When pneumatic cylinder 121 is activated individually, the work of power is not present between liquid presses piston pole 1221 and pneumaticpiston With, when pneumatic cylinder 121 and hydraulic cylinder 122 start, liquid presses piston pole 1221, which moves downward, gradually to abut with pneumaticpiston, And drive pneumaticpiston that pneumaticpiston bar 1211 is driven to move downward.At this point, hydraulic in the first hydraulic cavities and the second hydraulic cavities Difference acts on pneumaticpiston by hydraulic piston and liquid presses piston pole 1221, and is superimposed with the draught head on pneumaticpiston so that making Downward pressure difference increases on pneumaticpiston.The pressure difference is acted on pneumaticpiston bar 1211 by pneumaticpiston, is made The downward pressure difference of air pressure piston rod 1211 is obtained to increase.When liquid presses piston pole 1221 moves upwards, liquid presses piston pole 1221 is transported It moves to certain distance, can pull pneumaticpiston that pneumaticpiston bar 1211 is driven to move upwards.At this point, the liquid in the first hydraulic cavities Pressure is less than hydraulic in the second hydraulic cavities.Hydraulic piston generates a upward hydraulic pressure difference.The hydraulic pressure difference can balance out part gas Pressure difference downward on piston is pressed, so that the downward pressure difference that pneumaticpiston is subject to reduces.
Extrusion 130 is used to provide pressure for part 20 to be detected.Extrusion 130 is installed on pneumaticpiston bar 1211 far from liquid Press piston rod 1221 one end, and with pressure test check bit aligned in position.
Specifically, when pneumatic cylinder 121 is activated individually, work of the extrusion 130 by the first air cavity and the second air cavity pressure difference With.When the air pressure of the first air cavity is greater than the air pressure of the second air cavity, pneumaticpiston is pushed, and slide downward.Pneumaticpiston bar 1211 and extrusion 130 under the drive of piston slide downward until contacted with part 20 to be detected.With the second gas intracavity gas Continually enter, the draught head of the first air cavity and the second air cavity constantly increases, and extrusion 130 is stopped by part 20 to be detected, stop Sliding, but the pressure being applied on part 20 to be detected is also constantly to increase, and which is equal to the second air cavity and the first gas The pressure difference of chamber.When pressure value increases to preset pressure value, the second air cavity stops gas transmission, and the first air cavity stops deflating, squeeze Pressure is maintained at preset pressure value 5s by part 130, is treated detection piece 20 and is carried out pressure test.After 5s, the second air cavity air inlet, First air cavity is deflated, and pneumaticpiston drives pneumaticpiston bar 1211 and 130 upward sliding of extrusion, until extrusion 130 with to Detection piece 20 separates.
Pressure sensor (not shown), for detecting the pressure value of the offer of extrusion 130.
Specifically, due to the volume of gas source be it is certain, when gas source inputs gas into the first air cavity, gas source internal cause gas The reduction of body and cause Pneumatic pressure to fluctuate, and then cause the draught head in pneumatic cylinder 121 that will also fluctuate.And it squeezes Part 130 treats the source pressure of the offer of detection piece 20 in the second air cavity and the draught head of the first air cavity, and therefore, extrusion 130 mentions The pressure of confession will also fluctuate.When carrying out pressure maintaining, pressure value may be unable to maintain that in preset pressure value.In turn, to be checked During surveying more than 20 loop tests of part, it cannot exclude influence of the pressure oscillation to pressure testing results, lead to not treat The performance of detection piece 20 makes accurate evaluation.
And in the present embodiment, when pressure maintaining, if pressure value is less than preset pressure value, hydraulic cylinder 122 starts, liquid presses piston pole Increase the part of 1221 stretching hydraulic cylinders 1222.Liquid presses piston pole 1221 is gradually abutted with one end of pneumaticpiston bar 1211, And apply the hydraulic pressure difference towards extrusion 130 to pneumaticpiston bar 1211.The hydraulic pressure difference is superimposed with the draught head of pneumatic cylinder 121, So that the pressure increase that pneumaticpiston bar 1211 is downward.And extrusion 130 is installed on pneumaticpiston bar 1211, therefore, is squeezed The pressure that part 130 provides will also increase.When pressure value is greater than preset pressure value, hydraulic cylinder 122 also starts, liquid presses piston pole The part of 1221 retraction hydraulic cylinders 1222 is increased, and the part for stretching out hydraulic cylinder 1222 is reduced.Liquid presses piston pole 1221 generates The draught head of upward hydraulic pressure difference, the hydraulic cylinder and pneumatic cylinder 121 is offset, so that the downward pressure of pneumaticpiston bar 1211 subtracts It is few.And extrusion 130 is installed on pneumaticpiston bar 1211, therefore, the pressure that extrusion 130 provides will also be reduced.Therefore, In Under the action of hydraulic cylinder 122 and pneumatic cylinder 121, the pressure that extrusion 130 is applied on part 20 to be detected in pressure maintaining period can Maintain preset pressure value, thus accurate testing degree with higher.
In one embodiment, pressure testing machine further includes controller (not shown), controller and pressure sensor and hydraulic Cylinder 122 is electrically connected.
Controller, which is used to control hydraulic cylinder 122 according to pressure value, to be started, so that liquid presses piston pole 1221 is to pneumaticpiston bar 1211 apply the active force towards or backwards to extrusion 130.Specifically, indicator light relevant to controller, control display screen Etc. be mounted on one of mounting rack 114.The switch 192 of trigger controller is also equipped on body 110.
When pressure maintaining, if pressure value is less than preset pressure value, controller controls hydraulic cylinder 122 and starts, so that extrusion 130 can The pressure for being supplied to part 20 to be detected increases, and increases to preset pressure value.If pressure value is greater than preset pressure value, controller is also It controls hydraulic cylinder 122 to start, liquid presses piston pole 1221 is moved upward to a distance, and pneumaticpiston bar 1211 is pulled to transport upwards Dynamic, the upward hydraulic pressure difference in first hydraulic cylinder 122 and second hydraulic cylinder 122 can balance out the gas in a part of pneumatic cylinder 121 Pressure difference, so that the pressure difference acted on pneumaticpiston reduces, and then the stress of extrusion 130 also reduces, what application member provided Pressure can also be decreased to preset pressure value.Therefore, the setting of controller, so that above-mentioned pressure testing machine makes hydraulic cylinder 122 Start and runs more intelligent.
In addition, in the present embodiment, due to the pressure that extrusion 130 is applied on part 20 to be detected generally all need it is larger. If the hydraulic cylinder 122 that can provide larger pressure is used alone, it is likely that because of the higher cost of hydraulic cylinder 122 and biggish body Product causes pressure inconvenient.And in this application, pneumatic cylinder 121 plays a major role during pressing to extrusion 130.In Under the premise of equivalent effect power being provided to extrusion 130, the volume of pneumatic cylinder 121 is smaller, and use cost is cheaper.Due to gas Bulk wave is dynamic to cause the range of pressure oscillation smaller, therefore, the 122 relative volume very little of hydraulic cylinder in the application, and and pressure is provided The ability of power is also limited.Hydraulic cylinder 122 only needs to carry out active force one fine tuning, therefore, hydraulic cylinder 122 in the application at Originally it is relatively low.Therefore by setting pneumatic cylinder 121 and hydraulic cylinder 122, the stabilization of pressure in course of exerting pressure can be not only maintained, The production cost of pressure testing machine can also be reduced.
In one embodiment, pressure testing machine further includes position sensor (not shown).Position sensor is set to extruding On part 130, and it is electrically connected with the controller.Position sensor is used to detect the position of extrusion 130, and controller is according to extrusion The air inflow and gas output of 130 position control pneumatic cylinder 121.
Specifically, it to facilitate part 20 to be detected to install with enough spaces, is not opened in pneumatic cylinder 121 and hydraulic cylinder 122 Before dynamic, extrusion 130 has certain distance apart from pressure test check bit.When part 20 to be detected after the installation is completed, pneumatic cylinder 121 130 slide downward of extrusion is driven first.At first, the distance between extrusion 130 and part 20 to be detected are adherence pressure farther out Testing efficiency controls the air inflow in the first air cavity and the gas output in the second air cavity, can be by the decrease speed of extrusion 130 Control is in 10mm/s.When position sensor detect extrusion 130 apart from the distance between part 20 to be detected be 5mm when, control Device, can be by the decrease speed control of extrusion 130 by the air inflow in the first air cavity of control and the gas output in the second air cavity System generates excessive impact to prevent extrusion 130 from declining too fast between part 20 to be detected, causes to be detected in 1mm/s Part 20 damages.Extrusion 130 is gradually reduced until contacting with part 20 to be detected.By the way that position sensor, detectable extruding is arranged The position of part 130, and the speed of the downslide of extrusion 130 is controlled, it is larger to prevent from generating between extrusion 130 and part to be detected 20 Impact and cause part 20 to be detected to damage.Meanwhile it also can avoid the opposition that part 20 to be detected applies extrusion 130 Damage extrusion 130.
In one embodiment, pressure testing machine further includes guide rail 193 and link block 160.Guide rail 193 is installed on body 110, And extend along the direction for being parallel to 130 line of actuator 120 and extrusion, actuator 120 passes through link block 160 and guide rail 193 Connection, actuator 120 operationally along the extending direction of guide rail 193 slidably.Specifically, actuator 120 and extrusion 130 connect The direction of line is vertical direction.
Specifically, actuator 120 can carry out the distance between extrusion 130 and part 20 to be detected along the sliding of guide rail 193 Coarse adjustment.
Under normal circumstances, the diameter of part 20 to be detected is fixed.Threaded hole, screw are provided on link block 160 and guide rail 193 It is arranged in the threaded hole on link block 160 and guide rail 193, to fix actuator 120.It is surveyed when part 20 to be detected is placed in pressure After trying check bit, pneumaticpiston bar 1211 drives extrusion 130 to slide up and down, to complete the pressure test of part 20 to be detected.
If the diameter of part 20 to be detected increases, screw can be taken out, operation link block 160 drives actuator 120 along guide rail 193 upward slidings reserve enough skies so that actuator 120 can increase with the spacing between pressure test check bit to facilitate Between place part 20 to be detected.If the diameter of part 20 to be detected reduces, operation link block 160 drive actuator 120 along guide rail 193 to Lower slider so that the spacing between actuator 120 and part to be detected 20 reduces, with reduce extrusion 130 with part 20 to be detected The time moved in contact process, adherence pressure testing efficiency.
Specifically in the present embodiment, link block 160 is two, and pneumatic cylinder 121 and hydraulic cylinder 122 pass through link block respectively 160 are sequentially connected with guide rail 193.One end of each link block 160 offers perforating, and air pressure cylinder body 1212 is arranged in wherein one The perforating of a link block 160, hydraulic cylinder 1222 are arranged in the perforating of another link block 160, to realize pneumatic cylinder 121 And the fixation of hydraulic cylinder 122 and link block 160.This kind of fixed form is simple and easy, and without using extraneous fastener, can be square Just the production cost of pressure testing machine is reduced.
It should be noted that during pushing pneumatic cylinder 121 and hydraulic cylinder 122 to slide along guide rail 193, pneumatic cylinder 121 should move synchronously with hydraulic cylinder 122, and the relative velocity between pneumatic cylinder 121 and hydraulic cylinder 122 should be zero, to prevent liquid Current buffer distance between cylinder pressure 122 and pneumatic cylinder 121 changes and influences liquid presses piston pole 1221 and drive pneumaticpiston Bar 1211 moves.
It can also be play the guiding role to the sliding of actuator 120 by setting guide rail 193 and link block 160, guide rail 193, with It prevents actuator 120 from shaking during sliding and extrusion 130 and the contact position of part 20 to be detected is caused to change, Cause contact position during multiple loop test that can not unify and influence the precision tested.
Specifically, in one embodiment, pressure testing machine further includes Anti-rotary block 170 and connecting rod 180.Pneumaticpiston bar 1211 are arranged in Anti-rotary block 170, and Anti-rotary block 170 is connect by connecting rod 180 with link block 160.
Specifically, through hole is offered on Anti-rotary block 170, one end that pneumaticpiston bar 1211 stretches out air pressure cylinder body 1212 is worn Set on through hole, and the hole wall of opposite through hole is slidably.Anti-rotary block 170 is located at the lower section of link block 160,180 phase of connecting rod Pair both ends connect respectively with Anti-rotary block 170 and link block 160.During pressure test, link block 160 is affixed to lead On rail 193, then at this point, 170 position of Anti-rotary block connecting with link block 160 is also fixed.Therefore, when pneumaticpiston bar 1211 When being arranged in Anti-rotary block 170 and extrusion 130 being driven to slide, Anti-rotary block 170 can be oriented to and be prevented to pneumaticpiston bar 1211 Only pneumaticpiston bar 1211 rotates.To prevent the contact position of pneumaticpiston bar 1211 and extrusion 130 and part 20 to be detected from sending out Changing.The pneumaticpiston bar 1211 and extrusion 130 only slided moves comparatively stable.Therefore, extrusion 130 be supplied to part 20 to be detected pressure it is also relatively stable, fluctuate it is smaller so that pressure testing machine have preferably test effect Fruit.
In one embodiment, liquid presses piston pole 1221 is also through other Anti-rotary block 170 and connecting rod 180 and hydraulic piston The connection of the corresponding link block 160 of bar 1221, can not be with to prevent that liquid presses piston pole 1221 from shifting during sliding Pneumaticpiston bar 1211 abuts.In one embodiment, pressure testing machine further includes air pressure regulator 140 and hydraulic regulating valve 150. Air pressure regulator 140 is electrically connected with the controller.Air pressure regulator 140 is connected by the inside of hydraulic regulating valve 150 and pneumatic cylinder 121 It is logical.Lubricating oil is contained in hydraulic regulating valve 150, by entering to air pressure after the gas penetration lubricating oil of air pressure regulator 140 The inside of cylinder 121.
Specifically, controller is electrically connected with air pressure regulator 140, and passes through 140 control pressure cylinder 121 of air pressure regulator Air inflow.
Specifically, the first gas circuit and the second gas circuit are provided on air pressure regulator 140.First gas circuit and the second gas circuit are also divided It is not connected to hydraulic regulating valve 150.Lubricating oil is contained in hydraulic regulating valve 150.First gas circuit and the second gas circuit pass through liquid Pressure regulating valve 150 is connected to the first solenoid valve and second solenoid valve respectively.When first air pressure regulator 140 is opened, the first gas circuit The gas transmission into the first air cavity.When second air pressure valve is opened, the second gas circuit is to the second air cavity gas transmission.Gas is entering to pneumatic cylinder When in 121, also need to penetrate lubricating oil.
The aperture of air pressure regulator 140 is related to the air inflow in pneumatic cylinder 121.The aperture of air pressure regulator 140 is bigger, Air inflow then in pneumatic cylinder 121 is also bigger.And extrusion 130 is applied to part 20 to be detected in air inflow and pressure test sequence On pressure it is related.Air inflow is bigger, then the draught head of pneumaticpiston two sides is bigger.So, extrusion 130 is supplied to be detected Pressure on part 20 also will be bigger.
Due to the different part to be detected 20 of material, during pressure test, extrusion 130 applies to part 20 to be detected Pressure will also occur it is different.Therefore, by the way that air pressure regulator 140 is arranged, when the material of part 20 to be detected changes, control Device processed can be by the aperture of control pressure regulating valve 140, with the air inflow of control pressure cylinder 121, so that extrusion 130 is applied to Pressure meet demand on part 20 to be detected.
In addition, being additionally provided with collecting pipe in air pressure regulator 140.Gas source generally compresses air, and passes through pipeline 191 are delivered in air pressure regulator 140.Contain more steam in air.By the way that collecting pipe is arranged, steam may make to enter It is deposited in collecting pipe before in pneumatic cylinder 121, influences pneumatic cylinder 121 to prevent water vapour from gas being followed to enter in atmospheric pressure cavity Use.
And the setting of hydraulic regulating valve 150, lubricating oil is contained in hydraulic regulating valve 150, on the one hand, lubricating oil is to steam With suction-operated, when penetrating lubricating oil, gas can be further dried in lubricating oil gas.On the other hand, due to lubricating oil In room temperature, there is also vapour pressures, and therefore, gas will also carry the lubrication oil vapour of a part simultaneously during penetrating lubricating oil Enter in pneumatic cylinder 121, and lubricating action risen to piston, with prevent between piston and the inner wall of pneumatic cylinder 121 frictional force compared with Lead to piston wear greatly.Generally, lubrication oil vapour enters in pneumatic cylinder 121, can cover in the inner wall of pneumatic cylinder 121.
Specifically, air pressure regulator 140 and hydraulic regulating valve 150 are mounted on another mounting rack 114.
In one embodiment, extrusion 130 is located at the top of pedestal 111, positioned at the lower section of pneumatic cylinder 121.Extrusion 130 Middle part offer fixation hole, one end that pneumaticpiston bar 1211 stretches out the second air cavity is fastened in fixation hole, it can be achieved that air pressure is living The installation of stopper rod 1211 and extrusion 130.Such mode can realize extrusion 130 without using fastener, and by external force With the separation and installation of pneumaticpiston bar 1211, structure is simple, easy to assembly.
In one embodiment, a hole 1113 and 130 position pair of pneumaticpiston bar 1211 and extrusion are kept away on pedestal 111 Together.If extrusion 130 is fallen from pneumaticpiston bar 1211 accidentally, and pneumaticpiston bar 1211 is exactly in the mistake of downslide at this time Journey.Under the action of inertia, pneumaticpiston bar 1211 can not stop sliding in time, at this point, pneumaticpiston bar 1211 is possible to sliding It moves to pedestal 111 and abuts, and generate rigid contact between pedestal 111 and pneumaticpiston bar 1211 and fracture.And keep away a hole 1113 setting, pneumaticpiston bar 1211 can be avoided by keeping away a hole 1113, prevent pedestal 111 from connecing with pneumaticpiston bar 1211 It touches and pneumaticpiston bar 1211 is caused to damage.
In one embodiment, actuator 120 and extrusion 130 are aligned with the middle part of part 20 to be detected, keep away a hole 1113 It is aligned with the middle part of part 20 to be detected.Therefore, actuator 120 drives extrusion 130 to slide, and extrusion 130 can be with part to be detected 20 middle part abuts.The pressure that extrusion 130 provides acts on the middle part of part 20 to be detected, and part to be detected 20 can be prevented because of both ends Discontinuity and Xiang Yifang topples over.Therefore, part 20 to be detected can keep the stability of installation during pressure test, from And there is preferable testing reliability.
In one embodiment, the side of extrusion 130 towards pressure test check bit, which is recessed to be formed, abuts through slot 131.
It abuts through slot 131 and runs through extrusion 130.When extrusion 130 and part 20 to be detected offset, part 20 to be detected is worn In abutting through slot 131, and the opposite both ends of part to be detected 20 are abutted with the mounting groove 1123 of two fixture blocks 112 respectively.By setting It sets and abuts through slot 131, abut through slot 131 and 1123 collective effect of mounting groove, can be treated from the over and under of part 20 to be detected Detection piece 20 is limited, to prevent part 20 to be detected from sliding, convenient for promoting the reliability of test.
Specifically, abut through slot 131 cell wall be arc surface, and its internal diameter along pedestal 111 to the direction of extrusion 130 by It is decrescence small.130 slide downward of extrusion, until contacting and abutting with part 20 to be detected.And the cell wall for abutting through slot 131 is circular arc Face, and its internal diameter is gradually reduced along the direction of pedestal 111 to extrusion 130, therefore, when extrusion 130 slides simultaneously gradually downward When contacting with part 20 to be detected, abutting through slot 131 has biggish notch size, part 20 to be detected can be facilitated to stretch to abutting logical In slot 131.With further moving down for extrusion 130, part 20 to be detected can be gradually adjacent to the cell wall for abutting through slot 131, with Facilitate extrusion 130 to treat the fixed part 20 to be detected of detection piece 20 and treats the pressure of detection piece 20.When pressure test finishes, this kind Setting can also facilitate extrusion 130 and part 20 to be detected to be detached from.
Further, in one embodiment, pressure testing machine further includes elastic cushion, and elastic cushion is set to 130 court of extrusion To a side surface of pressure test check bit.
Since part 20 to be detected can be ceramics, if 130 gliding speed of extrusion is too fast, it is possible to be caused to ceramics larger Impact, cause ceramics shovel crack.And elastic cushion, elastic cushion are set towards the surface of part 20 to be detected in extrusion 130 It can offset a part of extrusion 130 when extrusion 130 and part 20 to be detected contact with buffer function and treat detection piece 20 Impact force, cause part 20 to be detected to damage to prevent extrusion 130 from hitting part 20 to be detected.
Specifically, it when elastic cushion is set on extrusion 130, is contained in abuts in through slot 131 completely, and be layed in abutting The cell wall of through slot 131.
Above-mentioned pressure testing machine, when pressure, part 20 to be detected is placed in pressure test check bit, starts pneumatic cylinder 121, gas Pressure piston rod 1211 pushes extrusion 130 to slide into pressure test check bit under the driving of air pressure, and extrusion 130 is to be detected Part 20 provides pressure.The pressure value that the detectable extrusion 130 of pressure sensor provides, when pressure value is less than preset pressure value, Liquid presses piston pole 1221 extends, and is connected to one end of pneumaticpiston bar 1211, and applies to pneumaticpiston bar 1211 towards crowded The active force of casting die 130, the active force are superimposed with the draught head of pneumatic cylinder 121, so that 1211 stress of pneumaticpiston bar increases.And Extrusion 130 is installed on pneumaticpiston bar 1211, and therefore, the pressure that extrusion 130 provides will also increase.When pressure value is greater than When preset pressure value, liquid presses piston pole 1221 retract, to pneumaticpiston bar 1211 pressure one backwards to extrusion 130 active force, Draught head in the active force and pneumatic cylinder 121 is offset, so that 1211 stress of pneumaticpiston bar is reduced, in turn, extrusion 130 is mentioned The pressure of confession reduces, so that pressure value maintains preset pressure value.Therefore, above-mentioned pressure testing machine is treating detection piece 20 During carrying out pressure test, the pressure value that can be acted on extrusion 130 on part 20 to be detected maintains preset pressure value, Thus accurate testing degree with higher.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.

Claims (10)

1. a kind of thermal shock resistance test method, which comprises the steps of:
Detection piece is treated to be heated;
The part to be detected is quenched;
To the part pressure to be detected and pressure maintaining within a preset period of time;And
If the part fracture to be detected, test terminate within a preset period of time;If the part to be detected within a preset period of time It is unbroken, then the step of executing heating, quenching, pressure and pressure maintaining is recycled, until the part fracture to be detected, and count circulation time Number.
2. thermal shock resistance test method according to claim 1, which is characterized in that the detection piece for the treatment of is heated The step of after further include:
The part to be detected is kept the temperature, holding temperature T, soaking time t1, wherein 1100 DEG C≤T≤1200 DEG C, 10min≤t1≤20min。
3. thermal shock resistance test method according to claim 1, which is characterized in that described to be carried out to the part to be detected The step of quenching includes:
The part to be detected is carried out it is cooling for the first time, cooling time t2, wherein 5S≤t2≤10S;
To the part to be detected carry out second it is cooling, cooling time t3, wherein 10S < t3≤20S。
4. thermal shock resistance test method according to claim 1, which is characterized in that described to be carried out to the part to be detected It further include that the part to be detected is cleaned and/or dried after the step of quenching.
5. a kind of thermal shock resistance test macro has heating station, quenching station and pressure station, which is characterized in that described Thermal shock resistance test macro includes:
Heating member is installed on the heating station, and for heating part to be detected;
Cooling piece is installed on the cooling station, and for being quenched the part to be detected;
Pressing piece is installed on the pressure station, and for the part pressure to be detected and pressure maintaining.
6. thermal shock resistance test macro according to claim 5, which is characterized in that the heating member is heating furnace, institute Stating heating furnace includes shell and Heating body, and the shell has heating chamber, and the Heating body accommodates and is fixed on described add In hot stove.
7. thermal shock resistance test macro according to claim 6, which is characterized in that the heating furnace further includes insulation master Body, the insulating body are accommodated and are fixed in the heating chamber, and the insulating body is formed with the insulation for accommodating part to be detected Portion.
8. thermal shock resistance test macro according to claim 7, which is characterized in that the heating furnace be it is cube shaped, The Heating body includes two fire-bars, and two fire-bars are set to two opposite inner sidewalls of the heating chamber, described Insulating body includes insulating base and two insulating bars, and the insulating base is covered in the bottom wall of the heating chamber, described in two Insulating bar is arranged at intervals at the insulating base, and is held between two fire-bars, is set with enclosing with the insulating base Form the insulation division.
9. thermal shock resistance test macro according to claim 5, which is characterized in that the cooling piece is water cooling pond, institute Stating water cooling pond includes the first water cooling pond and the second water cooling pond, and first water cooling pond and second water cooling pond are used for successively to institute Part part to be detected is stated to be quenched.
10. thermal shock resistance test macro according to claim 5, which is characterized in that the pressing piece is pressure test Machine, the pressure testing machine include:
Body is provided with pressure test check bit;
It is installed on the actuator of the body, the hydraulic cylinder including pneumatic cylinder and with pneumatic cylinder coaxial arrangement, the air pressure Cylinder includes air pressure cylinder body and the pneumaticpiston bar through the air pressure cylinder body, and the hydraulic cylinder includes liquid presses piston pole, the liquid Pressure piston rod is scalable to abut with one end of the pneumaticpiston bar;
Extrusion is installed on the described one end of pneumaticpiston bar far from the liquid presses piston pole, and detects with the pressure test Position aligned in position, the extrusion are used to provide pressure for the part to be detected;
Pressure sensor, the pressure value provided for detecting the extrusion.
CN201910792448.4A 2019-08-26 2019-08-26 Thermal shock resistance test method and system Pending CN110411884A (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111272574A (en) * 2020-02-14 2020-06-12 北京科技大学 Device and method for in-situ testing reaction behavior of refractory material under stress action

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111272574A (en) * 2020-02-14 2020-06-12 北京科技大学 Device and method for in-situ testing reaction behavior of refractory material under stress action

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