CN107860529B - Air cavity in air-leakage test is to appearance method and device - Google Patents
Air cavity in air-leakage test is to appearance method and device Download PDFInfo
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- CN107860529B CN107860529B CN201710971759.8A CN201710971759A CN107860529B CN 107860529 B CN107860529 B CN 107860529B CN 201710971759 A CN201710971759 A CN 201710971759A CN 107860529 B CN107860529 B CN 107860529B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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Abstract
The present invention provides the air cavitys in a kind of air-leakage test to method and device is held, and method therein includes: production standard air cavity, and at least two-stage gas circuit chamber is arranged in standard air cavity, and main gas circuit chamber and secondary gas circuit chamber are respectively provided in every level-one gas circuit chamber；The volume of each chamber is arranged are as follows: the volume of each main gas circuit chamber of grade is the multiple of the chamber unit volume of corresponding series, and the volume of every level-one pair gas circuit chamber is the multiple of the volume of the main gas circuit chamber of corresponding series；Bibcock is correspondingly arranged in each chamber of every level-one gas circuit chamber, main control module controls the folding of each bibcock according to the volume of test chamber, to adjust the volume of standard air cavity, keeps the volume of standard air cavity equal with the volume of test chamber.It is enabled to through the invention when carrying out air-leakage test to different type product, without occupying a large amount of replacement standard air cavitys and debugging the time of air pressure, to obtain stable test volume, and then improves the efficiency of product testing and the quality of production of product.
Description
Technical field
The present invention relates to test technique automatic fields, more specifically, are related to carrying out product in a kind of flexible producing line
Air cavity when air-leakage test is to appearance method and device.
Background technique
With the continuous progress of science and technology, the function of each electronic product is continuously available raising, and type does not also increase disconnected, example
The smart phone of such as rising in recent years, intelligent wearable device.And the type of usually intelligent wearable device is also more various, such as
There are Intelligent bracelet, smartwatch, AR, VR etc..Current intelligence wearing class product in an assembling process, need to various product into
Whether row air-leakage test, the water-proof function to determine the product are normal.
It is usually at present to be produced to certain class by the way of comparing chamber for the air-leakage test of intelligence wearing class product
During the air-tightness of product is detected, the reservoir bodies such as two are first made, a cavity is used to test product, another cavity
For comparing and analyzing, when being detected, while the gas of equivalent is poured into the cavity of the appearances such as two, then analyze two
A intracorporal atmospheric pressure value of chamber, if test product cavity is consistent with the atmospheric pressure value in comparative analysis cavity or preset
In fluctuation range, then illustrate that the air-tightness of the test product is qualified, it is otherwise unqualified.
However, different intelligence wearing class products possesses different volumes, and current in flexible automatic detection producing line
Common practice is all to make two air cavity for each type of product, just needs to cut in a type of product of every switching
All air cavitys are changed, can not then accomplish quick multiple continuous air cavity switching, so so as to cause the air-leakage test to product
Efficiency it is extremely low, and every kind of product all need two air cavity of production also will cause air cavity fabrication cycle is long and costly problem.
Summary of the invention
In view of the above problems, the object of the present invention is to provide the air cavity in a kind of air-leakage test to hold method and device,
To solve at present low and costly there are detection efficiency when class product carries out air-leakage test to intelligently dressing in flexible producing line
The problem of.
The present invention provides the air cavity in a kind of air-leakage test to appearance method, comprising: production standard air cavity, in standard air cavity
Middle setting at least two-stage gas circuit chamber, is respectively provided with main gas circuit chamber and secondary gas circuit chamber in every level-one gas circuit chamber；By each chamber
Volume setting are as follows: the volume of each main gas circuit chamber of grade is the multiple of the chamber unit volume of corresponding series, and every level-one pair gas
The volume of road chamber is the multiple of the volume of the main gas circuit chamber of corresponding series；It is corresponding in each chamber of every level-one gas circuit chamber
It is provided with bibcock, main control module controls the folding of each bibcock according to the volume of test chamber, to adjust the appearance of standard air cavity
Product, keeps the volume of standard air cavity equal with the volume of test chamber.
Furthermore it is preferred that mode are as follows: the flow direction of gas is arranged are as follows: gas passes through the main gas circuit chamber of corresponding series
Room enters the secondary gas circuit chamber of corresponding series, and the gas for entering the main gas circuit chamber of rear stage is mentioned by the main gas circuit chamber of previous stage
For.
Furthermore it is preferred that mode are as follows: the secondary gas circuits of a main gas circuit chamber and two are provided in every level-one gas circuit chamber
Chamber.
Furthermore it is preferred that mode are as follows: set equal for the volume of two of every level-one gas circuit chamber secondary gas circuit chambers.
Furthermore it is preferred that mode are as follows: main control module controls the folding of each bibcock in the volume according to test chamber
In the process, control mechanism corresponding with bibcock is set in standard air cavity, and main control module controls control mechanism, Jin Ertong
It crosses each control mechanism and controls corresponding bibcock opened/closed；Wherein, control mechanism is electromagnetism control head, motor, electric cylinders or cylinder.
Furthermore it is preferred that mode are as follows: the volume of every level-one pair gas circuit chamber is the volume of the main gas circuit chamber of corresponding series
Positive integer times.
On the other hand, the present invention provides the air cavity in a kind of air-leakage test to capacitance device, utilizes above-mentioned air-tightness inspection
Air cavity in survey carries out air cavity in air tightness test to appearance to method is held, which includes: standard air cavity cavity, main control module
With at least two-stage gas circuit chamber that standard air cavity inside cavity is arranged in；Wherein, main gas circuit is provided in every level-one gas circuit chamber
Chamber and secondary gas circuit chamber, the volume of every main gas circuit chamber of level-one is the multiple of the chamber unit volume of corresponding series, and each
The volume of the secondary gas circuit chamber of grade is the multiple of the volume of the main gas circuit chamber of corresponding series；In each chamber of every level-one gas circuit chamber
It is correspondingly arranged on bibcock, and control mechanism corresponding with bibcock, each control mechanism are connected with main control module respectively, main control module
Each control mechanism is controlled according to the volume of test chamber, corresponding bibcock opened/closed is controlled by each control mechanism, to adjust
The volume of whole standard air cavity cavity keeps the volume of standard air cavity cavity equal with the volume of test chamber.
Furthermore it is preferred that structure are as follows: the secondary gas circuits of a main gas circuit chamber and two are provided in every level-one gas circuit chamber
Chamber, two secondary gas circuit chambers are located at the two sides of main gas circuit chamber, and main gas circuit chamber and secondary gas circuit chamber pass through bibcock
Isolation, gas enter the secondary gas circuit chamber of corresponding series by the main gas circuit chamber of corresponding series.
Furthermore it is preferred that structure are as follows: the main gas circuit chamber of previous stage is isolated with the main gas circuit chamber of rear stage by bibcock, latter
The gas of the main gas circuit chamber of grade is provided by the main gas circuit chamber of previous stage.
Furthermore it is preferred that structure are as follows: control mechanism be electromagnetism control head, motor, electric cylinders or cylinder.
The air cavity in air-leakage test that aforementioned present invention provides is to method and device is held, by being arranged in standard air cavity
At least two-stage gas circuit chamber, is respectively provided with main gas circuit chamber and secondary gas circuit chamber in every level-one gas circuit chamber, and by the volume of each chamber
Setting are as follows: the volume of each main gas circuit chamber of grade is the multiple of the chamber unit volume of corresponding series, and every level-one pair gas circuit chamber
The volume of room is the multiple of the volume of the main gas circuit chamber of corresponding series；In addition, right in each chamber of every level-one gas circuit chamber
Bibcock should be set, and main control module controls the folding of each bibcock according to the volume of test chamber, to adjust the appearance of standard air cavity
Product, keeps the volume of standard air cavity equal with the volume of test chamber, in this way, carrying out air-leakage test to different types of product
When, only it need to be allowed to equal with the volume of test chamber by the volume of control standard air cavity, without making and replacing again pair
The air tightness test to such product can be completed than chamber.Can be realized through the invention quickly to different type product into
Row air-leakage test, so that when carrying out air-leakage test to different type product, without occupying a large amount of replacement standard air cavity
With the time of debugging air pressure, to obtain stable test volume, and then the efficiency of product testing and the production matter of product are improved
Amount.
To the accomplishment of the foregoing and related purposes, one or more aspects of the present invention includes being particularly described below especially
The feature pointed out.Certain illustrative aspects of the invention is described in detail in the following description and the annexed drawings.However, these aspects refer to
What is shown is only that some of the various ways in the principles of the present invention can be used.In addition, the present invention is intended to include it is all this
A little aspects and their equivalent.
Detailed description of the invention
It is of the invention by reference to the description below in conjunction with attached drawing, and with a more complete understanding of the present invention
Other purposes and result will be more clearly understood and understood.In the accompanying drawings:
Fig. 1 is according to the air cavity in the air-leakage test of the embodiment of the present invention to the flow diagram for holding method；
Fig. 2 is according to the air cavity in the air-leakage test of the embodiment of the present invention to the overall structure diagram of capacitance device；
Fig. 3 is the part section structural representation according to the air cavity in the air-leakage test of the embodiment of the present invention to capacitance device
Figure；
Fig. 4 is to be illustrated according to whole cross-section structure of the air cavity in the air-leakage test of the embodiment of the present invention to capacitance device
Figure.
Identical label indicates similar or corresponding feature or function in all the appended drawings.
In figure: standard air cavity cavity 1, control mechanism 2, main gas circuit chamber 3, the main gas circuit chamber 31 of level-one, the main gas circuit of second level
The main gas circuit chamber 33 of chamber 32, three-level, the main gas circuit chamber 34 of level Four, the main gas circuit chamber 35 of Pyatyi, secondary gas circuit chamber 4, level-one pair
Gas circuit chamber 41, second level pair gas circuit chamber 42, three-level pair gas circuit chamber 43, level Four pair gas circuit chamber 45, bibcock 5.
Specific embodiment
Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.
For it is aforementioned at present in flexible producing line to intelligence wearing class product carry out air-leakage test when there are detection efficiencies
By production standard air cavity at least two-stage gas circuit chamber is arranged, each in low and costly problem, the present invention in standard air cavity
It is respectively provided with main gas circuit chamber and secondary gas circuit chamber in grade gas circuit chamber, and the volume of each chamber is arranged are as follows: each main gas circuit chamber of grade
The volume of room is the multiple of the chamber unit volume of corresponding series, and the volume of every level-one pair gas circuit chamber is the master of corresponding series
The multiple of the volume of gas circuit chamber；In addition, be correspondingly arranged bibcock in each chamber of every level-one gas circuit chamber, main control module according to
The volume of test chamber controls the folding of each bibcock, to adjust the volume of standard air cavity, makes volume and the survey of standard air cavity
The volume for trying chamber is equal, in this way, need to only pass through control standard air cavity when carrying out air-leakage test to different types of product
Volume is allowed to equal with the volume of test chamber, can be completed without making and replacing comparison chamber again to such product
Air tightness test.It can be realized the carry out air-leakage test quickly to different type product through the invention, so as to not
When similar-type products carry out air-leakage test, without occupying a large amount of replacement standard air cavity and debugging the time of air pressure, to obtain
Stable test volume is taken, and then improves the efficiency of product testing and the quality of production of product.
To appearance method, Fig. 1 is shown to be implemented the air cavity in air-leakage test provided to illustrate the invention according to the present invention
Air cavity in the air-leakage test of example is to the process for holding method.
As shown in Figure 1, the air cavity in air-leakage test provided by the invention includes: to appearance method
S110: at least two-stage gas circuit chamber is arranged in standard air cavity, is all provided in every level-one gas circuit chamber for production standard air cavity
Set main gas circuit chamber and secondary gas circuit chamber.
S120: the volume of each chamber is arranged are as follows: the volume of each main gas circuit chamber of grade is the chamber unit of corresponding series
The multiple of volume, and the volume of every level-one pair gas circuit chamber is the multiple of the volume of the main gas circuit chamber of corresponding series.
It should be noted that chamber unit volume refers to the volume radix of preset chamber.For example, can be by chamber
Unit volume is set as 0.5L, and the volume of the main gas circuit chamber of every level-one is configured as to the 1 of the chamber unit volume of corresponding series
Times, the volume of every level-one pair gas circuit chamber is 2 times of the volume of the main gas circuit chamber of corresponding series.If being arranged in standard air cavity
There is three-level gas circuit chamber, then the volume of the main gas circuit chamber of level-one is then 0.5L, the volume of level-one pair gas circuit chamber is 1L, the main gas of second level
The volume of road chamber is 1L, and the volume of second level pair gas circuit chamber is 2L, and the volume of the main gas circuit chamber of three-level is 1.5L, three-level pair gas
The volume of road chamber is 3L.
S130: being correspondingly arranged on bibcock in each chamber of every level-one gas circuit chamber, and main control module is according to the appearance of test chamber
Product controls the folding of each bibcock, to adjust the volume of standard air cavity, makes the volume of standard air cavity and the volume of test chamber
It is equal.
Wherein, the flow direction of gas is arranged are as follows: gas enters corresponding stage by the main gas circuit chamber of corresponding series
Several secondary gas circuit chambers, and the gas for entering the main gas circuit chamber of rear stage is provided by the main gas circuit chamber of previous stage.
In a specific embodiment of the air cavity in air-leakage test provided by the invention to appearance method, in standard air cavity
In be provided with two-stage gas circuit chamber, then the flow direction of gas is then are as follows: gas enters level-one pair gas by the main gas circuit chamber of level-one
Road chamber can determine whether gas enters level-one pair gas circuit chamber certainly according to actual needs；Into the main gas circuit chamber of second level
Gas is provided by the main gas circuit chamber of level-one, and after gas enters the main gas circuit chamber of second level, can equally determine according to actual needs is
It is no that gas is allowed to enter second level pair gas circuit chamber.But it should be recognized that in every level-one gas circuit chamber, the gas of secondary gas circuit chamber
It is to be provided by the main gas circuit chamber of corresponding series, and the gas of the main gas circuit chamber of rear stage is then necessarily by previous stage master
What gas circuit chamber provided.
In order to keep air cavity wider to the adaptability of appearance, in the present invention, a master is provided in every level-one gas circuit chamber
Gas circuit chamber and two secondary gas circuit chambers, and the constant volume of each chamber.It that is: can be by two of every level-one gas circuit chamber secondary gas
The volume of road chamber is set as equal, is so then advantageously implemented the volume equity of standard air cavity and test chamber.Further, may be used
The volume of every level-one pair gas circuit chamber to be arranged to the positive integer times of the volume of the main gas circuit chamber of corresponding series, in this way, then more
It is advantageously implemented the calculating of the volume equity between standard air cavity and test chamber.
Further, main control module is during controlling the folding of each bibcock according to the volume of test chamber,
Control mechanism corresponding with bibcock is set in standard air cavity, and main control module controls control mechanism, and then passes through each control
The corresponding bibcock opened/closed of mechanism controls；Wherein, control mechanism includes that electromagnetism control head, motor, electric cylinders or cylinder etc. can make
Bibcock is opened or the device of closure.
It should be noted that depending on the series for the gas circuit chamber being arranged in standard air cavity needs according to actual needs, usually
The quantity of the series of setting is adapted with the maximum test chamber of volume, and certainly set chamber unit volume is different, Standard Gases
The series of chamber also has difference.
It corresponds to the above method, the present invention provides the air cavity in a kind of air-leakage test to capacitance device, and place is with above-mentioned
Air cavity in air-leakage test carries out air cavity in air tightness test to appearance to method is held, and Fig. 2 shows implement according to the present invention
For air cavity in the air-leakage test of example to the overall structure of capacitance device, Fig. 3 shows air-tightness inspection according to an embodiment of the present invention
The part section structure of air cavity in survey to capacitance device.
As shown in Figures 2 and 3, the air cavity in air-leakage test provided by the invention includes standard air cavity cavity to capacitance device
1, main control module (not shown) and at least two-stage gas circuit chamber being arranged in inside standard air cavity cavity 1；Wherein, in every level-one
Main gas circuit chamber 3 and secondary gas circuit chamber 4 are provided in gas circuit chamber, the volume of every main gas circuit chamber of level-one is the chamber of corresponding series
The multiple of room unit volume, and the volume of every level-one pair gas circuit chamber is the multiple of the volume of the main gas circuit chamber of corresponding series；
It is correspondingly arranged on bibcock 5, and control mechanism 2 corresponding with bibcock 5 in each chamber of every level-one gas circuit chamber, respectively controls machine
Structure is connected with main control module respectively, and main control module controls each control mechanism 2 according to the volume of test chamber, passes through each control
Mechanism 2 controls corresponding 5 opened/closed of bibcock, to adjust the volume of standard air cavity cavity 1, make the volume of standard air cavity cavity with
The volume of test chamber is equal.
Further, it is provided with the secondary gas circuit chambers of a main gas circuit chamber and two in every level-one gas circuit chamber, two
Secondary gas circuit chamber is located at the two sides of main gas circuit chamber, and main gas circuit chamber is isolated with secondary gas circuit chamber by bibcock, gas
Enter the secondary gas circuit chamber of corresponding series by the main gas circuit chamber of corresponding series.In addition, the main gas circuit chamber of previous stage with it is latter
The main gas circuit chamber of grade is equally isolated by bibcock, and the gas of the main gas circuit chamber of rear stage is provided by the main gas circuit chamber of previous stage.
In addition, above-mentioned control mechanism, which can be electromagnetism control head, motor, electric cylinders or cylinder etc., can control bibcock unlatching
Or the control unit of closure.
In order to be illustrated in more detail to the air cavity in air-leakage test provided by the invention to capacitance device, Fig. 4 shows
The air cavity in air-leakage test according to an embodiment of the present invention is gone out to the whole cross-section structure of capacitance device.
As shown in figure 4, being provided with Pyatyi gas circuit chamber in standard air cavity cavity 1, one is provided in every level-one gas circuit chamber
A main gas circuit chamber and two secondary gas circuit chambers, i.e. Pyatyi gas circuit chamber in the standard air cavity is respectively the main gas circuit chamber of level-one
31, level-one pair gas circuit chamber 41 (two), the main gas circuit chamber 32 of second level, second level pair gas circuit chamber 42 (two), the main gas circuit of three-level
Chamber 33, three-level pair gas circuit chamber 43 (two), the main gas circuit chamber 34 of level Four, level Four pair gas circuit chamber 44 (two), Pyatyi master
Gas circuit chamber 35, Pyatyi pair gas circuit chamber 45 (two).
0.5L is set by chamber unit volume, the volume of the main gas circuit chamber of every level-one is configured as to the chamber of corresponding series
1 times of room unit volume, the volume of every level-one pair gas circuit chamber are 2 times of the volume of the main gas circuit chamber of corresponding series, then
The volume of the main gas circuit chamber of level-one is then 0.5L, and the volume of two level-one pair gas circuit chambers is respectively 1L, the main gas circuit chamber of second level
Volume is 1L, and the volume of two second level pair gas circuit chambers is respectively 2L, and the volume of the main gas circuit chamber of three-level is 1.5L, two three-levels
The volume of secondary gas circuit chamber is respectively 3L, and the volume of the main gas circuit chamber of level Four is 2L, the volume point of two level Four pair gas circuit chambers
Not Wei 4L, the volume of the main gas circuit chamber of Pyatyi is 2.5L, and the volume of two Pyatyi pair gas circuit chambers is respectively 5L.
So according to above-mentioned, if the volume of test chamber is 10L, main control module need to only control the main gas circuit chamber of level-one, second level
Main gas circuit chamber, two second level pair gas circuit chambers, the main gas circuit chamber of three-level and a three-level pair gas circuit chamber bibcock beat
It opens, so that gas enters in above-mentioned each chamber, that standard chamber cavity can be realized is equal with the volume of test chamber；If test chamber
Volume is 37.5L, then, main control module, which then needs the bibcock for controlling all main gas circuit chambers and secondary gas circuit chamber to open, just can be achieved
The equity of the volume of standard chamber cavity and test chamber.
By it is above-mentioned it is found that air cavity in air-leakage test provided by the invention to hold method and device have it is following excellent
Point:
1, in flexible automatic detection producing line, it can be avoided switching different product and what bring standard chamber was frequently replaced ask
Topic；
2, air-leakage test fast, easily can be carried out to different types of product, it is occupied reduces switching product
Replacement, debug time, obtain stable test volume, to improve the efficiency of product testing, improve the quality of production of product.
Described in an illustrative manner above with reference to attached drawing air cavity in air-leakage test according to the present invention to appearance method and
Device.It will be understood by those skilled in the art, however, that the air cavity in the air-leakage test proposed for aforementioned present invention is to appearance
Method and device can also make various improvement on the basis of not departing from the content of present invention.Therefore, protection scope of the present invention
It should be determined by the content of appended claims.
Claims (9)
1. the air cavity in a kind of air-leakage test is to appearance method, comprising:
At least two-stage gas circuit chamber is arranged in production standard air cavity in the standard air cavity, is respectively provided with master in every level-one gas circuit chamber
Gas circuit chamber and secondary gas circuit chamber；
The volume of each chamber is arranged are as follows: the volume of each main gas circuit chamber of grade is times of the chamber unit volume of corresponding series
Number, and the volume of every level-one pair gas circuit chamber is the multiple of the volume of the main gas circuit chamber of corresponding series；
Bibcock is correspondingly arranged in each chamber of every level-one gas circuit chamber, main control module is according to the volume of test chamber to each bibcock
Folding controlled, to adjust the volume of the standard air cavity, make the volume of the standard air cavity and the appearance of the test chamber
Product is equal.
2. the air cavity in air-leakage test as described in claim 1 is to appearance method, wherein
The flow direction of gas is arranged are as follows: gas enters the secondary gas circuit of corresponding series by the main gas circuit chamber of corresponding series
Chamber, and the gas for entering the main gas circuit chamber of rear stage is provided by the main gas circuit chamber of previous stage.
3. the air cavity in air-leakage test as described in claim 1 is to appearance method, wherein
A main gas circuit chamber and two secondary gas circuit chambers are provided in every level-one gas circuit chamber.
4. the air cavity in air-leakage test as claimed in claim 3 is to appearance method, wherein
Set equal for the volume of two of every level-one gas circuit chamber secondary gas circuit chambers.
5. the air cavity in air-leakage test as described in claim 1 is to appearance method, wherein the main control module is according to test
During the volume of chamber controls the folding of each bibcock,
Corresponding with bibcock control mechanism is set in the standard air cavity, the main control module to the control mechanism into
Row control, and then corresponding bibcock opened/closed is controlled by each control mechanism；Wherein,
The control mechanism is electromagnetism control head, motor, electric cylinders or cylinder.
6. the air cavity in a kind of air-leakage test utilizes the gas as described in any one of above-mentioned Claims 1 to 5 to capacitance device
Air cavity in the detection of close property carries out air cavity in air tightness test to appearance to holding method, described device include: standard air cavity cavity,
Main control module and at least two-stage gas circuit chamber that the standard air cavity inside cavity is set；Wherein,
Main gas circuit chamber and secondary gas circuit chamber are provided in every level-one gas circuit chamber, the volume of every main gas circuit chamber of level-one is phase
The multiple of the chamber unit volume of series is answered, and the volume of every level-one pair gas circuit chamber is the volume of the main gas circuit chamber of corresponding series
Multiple；
Bibcock, and control mechanism corresponding with bibcock are correspondingly arranged in each chamber of every level-one gas circuit chamber, it is each to control
Mechanism is connected with the main control module respectively, and the main control module controls each control mechanism according to the volume of test chamber,
Controlling corresponding bibcock opened/closed by each control mechanism makes the Standard Gases to adjust the volume of the standard air cavity cavity
The volume of chamber cavity and the volume of test chamber are equal.
7. the air cavity in air-leakage test as claimed in claim 6 is to capacitance device, wherein
A main gas circuit chamber and two secondary gas circuit chambers, described two pair gas circuit chambers are provided in every level-one gas circuit chamber
The two sides of the main gas circuit chamber are located at, and the main gas circuit chamber is isolated with secondary gas circuit chamber by bibcock, gas is logical
The main gas circuit chamber for crossing corresponding series enters the secondary gas circuit chamber of corresponding series.
8. the air cavity in air-leakage test as claimed in claim 6 is to capacitance device, wherein
The main gas circuit chamber of previous stage is isolated with the main gas circuit chamber of rear stage by bibcock, and the gas of the main gas circuit chamber of rear stage is by preceding
The main gas circuit chamber of level-one provides.
9. the air cavity in air-leakage test as claimed in claim 6 is to capacitance device, wherein
The control mechanism is electromagnetism control head, motor, electric cylinders or cylinder.
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| CN201710971759.8A CN107860529B (en) | 2017-10-18 | 2017-10-18 | Air cavity in air-leakage test is to appearance method and device |
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| CN107860529A (en) | 2018-03-30 |
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