CN104266912B - Detection device and method for water-pressure-resistant performance of capillary metal pipe - Google Patents
Detection device and method for water-pressure-resistant performance of capillary metal pipe Download PDFInfo
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- CN104266912B CN104266912B CN201410521636.0A CN201410521636A CN104266912B CN 104266912 B CN104266912 B CN 104266912B CN 201410521636 A CN201410521636 A CN 201410521636A CN 104266912 B CN104266912 B CN 104266912B
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Abstract
The invention discloses a detection device and method for the water-pressure-resistant performance of a capillary metal pipe. The detection device comprises a water pressure testing machine, a water pipe, a base and a plug, wherein the base is provided with an elastic chuck I and an elastic chuck II; an organic plastic pipe I and an elastic metal pipe I are arranged between the elastic chuck I and the capillary metal pipe; an organic plastic pipe II and an elastic metal pipe II are arranged between the elastic chuck II and the capillary metal pipe; the elastic metal pipe I is provided with an external thread I; the plug is provided with an internal thread I in a matching manner; the elastic metal pipe II is provided with an external thread II; and the water pipe is provided with a transition joint which is provided with an internal thread II in the matching manner. The invention also discloses a method for detecting the water-pressure-resistant performance of the capillary metal pipe by utilizing the device. The detection device and the detection method disclosed by the invention have the advantages that the detection is accurate, convenient and little inn loss, the requirement for detection on the water pressure resistance of a conventional capillary metal pipe is met, the one-by-one detection can be quickly finished and the working efficiency is high.
Description
Technical field
The invention belongs to metal material performance detection apparatus technical field is and in particular to a kind of capillary metal tube Water Pressure Resistance
Can detection means and detection method.
Background technology
With the progress of industrial technology, the continuous renewal of advanced production equipment is regenerated, the becoming more meticulous of various products, functionalization
And be miniaturizated to the principal direction of development, metal capillary on equipment and materials application, every year in the way of being quickly incremented by
Application and the every field such as military project, oil, chemical industry, medical treatment.On the basis of the update of product is built upon quality, Gao Xing
The quality of energy just can make product be welcome by market.
The pressure parameter of capillary metal pipe material is the important parameter index of tubing.The water pressure resistance of traditional capillary metal pipe material
The detection present situation of performance is：
For wall thickness more than 0.2mm capillary metal pipe material, in every batch of product random choose sample be sampled examine
Survey, the sampling proportion of generally civilian tubing is 2～3/batches, the sampling proportion of military project tubing can somewhat some more (except specify by
Prop up detection outer).Specifically detection method is：Tubing to be detected is directly welded on the joint of pressure detecting pipe, to be detected finishes
Afterwards, cut tubing welding portion, the method not only complex operation, inefficiency, and also the loss to tubing itself is very big,
Lead to material unaccounted-for (MUF) serious, yield rate is low.
Wall thickness is less than to the capillary metal pipe material of below 0.2mm, because welding difficulty is big, does not generally carry out Water Pressure Resistance
(in addition to military project specifies detection) can be detected, only detect that tubing interior tissue has the defects such as flawless by eddy current inspection, but whirlpool
Stream flaw detection can only detect tissue defects, but can not detect pressure, the pressurized situation of tubing.
For military project specify must by detection a capillary metal pipe material, tight to the welding process requirement of tubing due to it
Lattice, lead to detection technique difficulty big, testing cost is very high.
In summary, there is complex operation, inefficiency, one-tenth in traditional capillary metal tube water pressure resistance performance characterization processes
The notable defects such as product rate is low, material unaccounted-for (MUF) is serious, welding cost is high, accuracy of detection.
Therefore, need that research and development a kind of simple operation, accuracy of detection be high, lossless to material, high working efficiency capillary is golden badly
Belong to pipe water pressure resistance performance detection means.
Content of the invention
The technical problem to be solved is, for above-mentioned deficiency of the prior art, to provide a kind of capillary metal
Pipe water pressure resistance performance detection means.This device simple operation, accuracy of detection is high, low cost lossless to material, work efficiency
Height, has significant promotional value.
For solving above-mentioned technical problem, the technical solution used in the present invention is：A kind of capillary metal tube water pressure resistance performance inspection
Survey device, include hydrostatic testing machine with the water pipe that is connected on hydrostatic testing machine it is characterised in that：Also include pedestal and plug,
It is provided with for the elastic clip that clamps capillary metal tube is first and collet two on described pedestal, described elastic clip is first and hair
It is provided with the organic plasticss pipe one being sleeved on capillary metal tube between thin metal pipe and be sleeved on organic plasticss pipe one
Elastic metallic pipe one, is provided with, between described collet two and capillary metal tube, the organic plasticss being sleeved on capillary metal tube
Pipe two and be sleeved on elastic metallic pipe two on organic plasticss pipe two, one end of described elastic metallic pipe one is first with elastic clip
Phase clamping connection, the other end is provided with external screw thread one, and described plug is provided with the female thread one being adapted with described external screw thread one, institute
State one end and the collet two-phase clamping connection of elastic metallic pipe two, the other end is provided with external screw thread two, described water pipe is provided with
Adapter, described adapter is provided with the female thread two being adapted with described external screw thread two.
A kind of above-mentioned capillary metal tube water pressure resistance performance detection means it is characterised in that：On described organic plasticss pipe one
It is additionally provided with the annular ridge one relatively sliding for preventing organic plasticss Guan Yiyu elastic metallic pipe one from occurring；Described organic mould
The annular ridge two relatively sliding for preventing organic plasticss Guan Eryu elastic metallic pipe two from occurring is additionally provided with expects pipe.
A kind of above-mentioned capillary metal tube water pressure resistance performance detection means it is characterised in that：Described organic plasticss Guan Yiyu
Organic plasticss pipe two is polyfluortetraethylene pipe, and described elastic metallic Guan Yiyu elastic metallic pipe two is Ti-Ni shape memory and closes
Jin Guan.
A kind of above-mentioned capillary metal tube water pressure resistance performance detection means it is characterised in that：Described organic plasticss Guan Yiyu
The wall thickness of organic plasticss pipe two is 0.5mm～1mm, and the wall thickness of described elastic metallic Guan Yiyu elastic metallic pipe two is
0.2mm～0.5mm.
A kind of above-mentioned capillary metal tube water pressure resistance performance detection means it is characterised in that：On described elastic metallic pipe one
And fold one end of connecing first with elastic clip offers multiple U-shaped grooves one, on described elastic metallic pipe two and and collet
One end of two-phase clamping connection offers multiple U-shaped grooves two.
A kind of above-mentioned capillary metal tube water pressure resistance performance detection means it is characterised in that：Each U-shaped groove one and each
The length of U-shaped groove two is 15mm～20mm, and width is 0.1mm～0.2mm.
In addition, present invention also offers a kind of detected to the water pressure resistance performance of capillary metal tube using said apparatus
Method it is characterised in that：The method comprises the following steps：
Step one, capillary metal tube is assemblied in capillary metal tube water pressure resistance performance detection means, then according to capillary
Metal tube retention time under conditions of pressure is for P is that the water pressure resistance performance of t requires, and sets pressure P on hydrostatic testing machine；Institute
State P to meet：P≤35MPa, described t meets：1min≤t≤5min；
Step 2, the injection pressure switch of unlatching hydrostatic testing machine, carry out water filling pressurization to capillary metal tube, treat capillary metal tube
Interior hydraulic pressure starts timing pressurize after reaching set pressure P；
Step 3, after timing time be after t, immediately close injection pressure switch, take off capillary metal tube after the pressure release that discharges water；
Step 4, detection capillary metal tube have crack-free or Seepage；If crack-free or Seepage, prove described
Capillary metal tube disclosure satisfy that the water pressure resistance performance for t for the retention time requires under conditions of pressure is for P；Otherwise, then prove institute
State capillary metal tube and be unsatisfactory for the water pressure resistance performance requirement that the retention time under conditions of pressure is for P is t.
Above-mentioned method it is characterised in that：The external diameter Ф of capillary metal tube described in step one meets：0.5mm≤Ф≤
6mm, the wall thickness δ of described capillary metal tube meets：The unit of 0.1 Ф≤δ≤0.3 Ф, δ is mm.
Above-mentioned method it is characterised in that：The material of capillary metal tube described in step one be titanium, copper, aluminum, titanium alloy or
Rustless steel.
The present invention compared with prior art has advantages below：
1st, in the present invention, circular fin one is arranged on organic plasticss pipe one, to prevent organic plasticss Guan Yiyu elasticity gold
Belong to pipe one to occur relatively to slide, circular fin two is arranged on organic plasticss pipe two, to prevent organic plasticss Guan Yiyu elasticity gold
Belong to pipe one to occur relatively to slide, additionally, circular fin one and circular fin two can also increase sealed extruded area, make organic moulding
Expects pipe one and organic plasticss pipe two can realize better seal performance under elevated pressure conditions.
2nd, in the present invention, the effect of organic plasticss pipe one and organic plasticss pipe two is sealing, it is preferred to use sealing property is excellent
Good polyfluortetraethylene pipe.The present invention finds after lot of experiments, and the water pressure resistance performance detection of capillary metal tube is moulded by organic
The wall thickness impact of expects pipe one and organic plasticss pipe two.If the wall thickness of organic plasticss pipe one and organic plasticss pipe two is too small, it is water-fast
Compressive Strength is greatly reduced, and is easily deformed rupture it is impossible to complete the hydraulic pressure detection of up to 35MPa；If organic plasticss pipe one and organic
The wall thickness of plastic tube two is excessive, because the retractility of organic plasticss is far longer than elastic metallic, nor the inspection completing high pressure
Survey.Therefore, the preferred wall thickness dimension of the present invention is organic plasticss pipe one and the organic plasticss pipe two of 0.5mm～1mm, to complete to be up to
The hydraulic pressure detection of 35MPa, thus meet conventional military project, civilian tubing by a Non-Destructive Testing.
3rd, in the present invention, the major function of elastic metallic pipe one and elastic metallic pipe two is to support high pressure, and passes through bullet
Sexual function realizes stepping up and loosening of capillary metal tube.Preferably employ Ti-Ni marmem.The present invention is through lot of experiments
After find, the detection of the water pressure resistance performance of capillary metal tube is affected by the wall thickness of elastic metallic pipe one and elastic metallic pipe two.If
Wall thickness is too small to have elastic metallic pipe itself it cannot be guaranteed that the pressure detecting of 35MPa, and wall thickness is excessive, can weaken collet to hair
The chucking power of thin metal pipe and cause unnecessary cost to raise.Therefore, the preferred wall thickness dimension of the present invention is 0.2mm～0.5mm
Elastic metallic pipe one and elastic metallic pipe two, detected with the hydraulic pressure completing up to 35MPa, thus meeting conventional military project, civilian
Tubing by Non-Destructive Testing.
4th, in the present invention, on elastic metallic pipe one, fold one end of connecing first with elastic clip is provided with multiple U-shaped grooves one,
Clamping between elastic metallic Guan Yiyu elastic clip can be made first is even closer.Meanwhile, on elastic metallic pipe two with elastic clip
One end of head two-phase clamping connection is provided with multiple U-shaped grooves two, can make the clamping between elastic metallic Guan Eryu collet two
Even closer.And the present invention finds after test, each U-shaped groove one is equal with the length of each U-shaped groove two through multiple regulation
When being 0.1mm～0.2mm for 15mm～20mm, width, clamping effect is optimal.
5th, present configuration is simple, and novel in design rationally realization is convenient, and practical application is strong, and using effect is good, is easy to push away
Extensively.
6th, the present invention pollution-free to capillary metal pipe material, loss, install convenient, easy to operate, low cost, work efficiency
Height is it is adaptable to multi items, many specifications, large batch of metal capillary, by a detection, greatly improve pipe workpiece quality stability, have
Significantly promotional value.
7th, capillary tubes detection means of the present invention, installation, dismounting are convenient, to tubing raw material free of losses, can detect hydraulic pressure
It is not more than the routinely capillary metal tube water pressure resistance Testing index of 35MPa, can be rapidly completed by a detection, capillary can be effectively improved
The uniformity of metal pipe material quality, stability etc..
Below by drawings and Examples, technical scheme is described in further detail.
Brief description
Fig. 1 is the structural representation of the embodiment of the present invention 1 capillary metal tube water pressure resistance performance detection means.
Fig. 2 is the structural representation of the embodiment of the present invention 2 capillary metal tube water pressure resistance performance detection means.
Fig. 3 is the structural representation of Example 1 and Example 2 of the present invention elastic metallic pipe one.
Fig. 4 is the structural representation of Example 1 and Example 2 of the present invention elastic metallic pipe two.
Description of reference numerals:
1 pedestal；2-1 elastic clip is first；2-2 collet two；
3-1 organic plasticss pipe one；3-2 organic plasticss pipe two；3-11 annular ridge one；
3-12 annular ridge two；4-1 elastic metallic pipe one；4-2 elastic metallic pipe two；
5 capillary metal tubes；6 water pipes；7 adapteres；
8 plugs；9-1 sealing gasket one；9-2 sealing gasket two；
10-1 external screw thread one；10-2 female thread one；11-1 external screw thread two；
11-2 female thread two；12-1 U-shaped groove one；12-2 U-shaped groove two；
15 hydrostatic testing machines.
Specific embodiment
Capillary metal tube water pressure resistance performance detection means of the present invention passes through embodiment 1 and embodiment 2 illustrates：
Embodiment 1
Shown as shown in Figure 1, Figure 3 and Figure 4, the present embodiment capillary metal tube water pressure resistance performance detection means, including the water pressure test
Machine 15 and the water pipe 6 being connected on hydrostatic testing machine 15, also include pedestal 1 and plug 8, described pedestal 1 are provided with for pressing from both sides
Hold the first 2-1 of elastic clip and collet two 2-2 of capillary metal tube 5, the first 2-1 of described elastic clip and capillary metal tube 5 it
Between be provided with organic plasticss pipe one 3-1 being sleeved on capillary metal tube 5 and be sleeved on the elasticity on organic plasticss pipe one 3-1
Metal tube one 4-1, be provided between described collet two 2-2 and capillary metal tube 5 be sleeved on organic on capillary metal tube 5
Plastic tube two 3-2 and be sleeved on elastic metallic pipe two 4-2 on organic plasticss pipe two 3-2, described elastic metallic pipe one 4-1's
One end 2-1 first with elastic clip phase clamping connection, the other end is provided with external screw thread one 10-1, described plug 8 is provided with outer with described
Female thread one 10-2 that screw thread one 10-1 is adapted, one end of described elastic metallic pipe two 4-2 and collet two 2-2 fold
Connect, the other end is provided with external screw thread two 11-1, described water pipe 6 is provided with adapter 7, described adapter 7 is provided with
Female thread two 11-2 being adapted with described external screw thread two 11-1.
In the present embodiment, described organic plasticss pipe one 3-1 and organic plasticss pipe two 3-2 is polyfluortetraethylene pipe, described
Elastic metallic pipe one 4-1 and elastic metallic pipe two 4-2 is Ti-Ni marmem pipe.
In the present embodiment, the wall thickness of described organic plasticss pipe one 3-1 and organic plasticss pipe two 3-2 is 0.5mm～1mm,
The wall thickness of described elastic metallic pipe one 4-1 and elastic metallic pipe two 4-2 is 0.2mm～0.5mm.
In the present embodiment, on described elastic metallic pipe one 4-1 and 2-1 phase clamping connection first with elastic clip one end offer many
Individual U-shaped groove one 12-1, offers multiple U on described elastic metallic pipe two 4-2 and with one end of collet two 2-2 phase clamping connection
Connected in star two 12-2.
In the present embodiment, the length of each U-shaped groove one 12-1 and each U-shaped groove two 12-2 is 15mm～20mm,
Width is 0.1mm～0.2mm.
In the present embodiment, it is additionally provided with the space between described plug 8 and elastic metallic pipe one 4-1 for increasing sealing
Sealing gasket one 9-1 of property, is additionally provided with close for increasing in the space between described adapter 7 and elastic metallic pipe two 4-2
Sealing gasket two 9-2 of envelope property.
Embodiment 2
As shown in Figure 2, Figure 3 and Figure 4, shown as shown in Figure 1, Figure 3 and Figure 4, the present embodiment capillary metal tube water pressure resistance performance is examined
Survey device, including hydrostatic testing machine 15 and the water pipe 6 being connected on hydrostatic testing machine 15, also include pedestal 1 and plug 8, described
The first 2-1 of elastic clip for clamping capillary metal tube 5 and collet two 2-2 is provided with pedestal 1, described elastic clip is first
It is provided with organic plasticss pipe one 3-1 being sleeved on capillary metal tube 5 between 2-1 and capillary metal tube 5 and be sleeved on organic
Elastic metallic pipe one 4-1 on plastic tube one 3-1, is provided between described collet two 2-2 and capillary metal tube 5 and is sleeved on
Organic plasticss pipe two 3-2 on capillary metal tube 5 and be sleeved on elastic metallic pipe two 4-2 on organic plasticss pipe two 3-2, institute
State one end 2-1 first with elastic clip phase clamping connection of elastic metallic pipe one 4-1, the other end is provided with external screw thread one 10-1, described stifled
Be provided with female thread one 10-2 being adapted with described external screw thread one 10-1 on 8, one end of described elastic metallic pipe two 4-2 with
Collet two 2-2 phase clamping connection, the other end is provided with external screw thread two 11-1, and described water pipe 6 is provided with adapter 7, described
Female thread two 11-2 being adapted with described external screw thread two 11-1 is provided with adapter 7；On described organic plasticss pipe one 3-1
It is additionally provided with for preventing organic plasticss pipe one 3-1 and elastic metallic pipe one 4-1 from annular ridge one 3-11 of relative slip occurring；
It is additionally provided with relative sliding with elastic metallic pipe two 4-2 generation for preventing organic plasticss pipe two 3-2 on described organic plasticss pipe 3-2
Dynamic annular ridge two 3-21.
In the present embodiment, described organic plasticss pipe one 3-1 and organic plasticss pipe two 3-2 is polyfluortetraethylene pipe, described
Elastic metallic pipe one 4-1 and elastic metallic pipe two 4-2 is Ti-Ni marmem pipe.
In the present embodiment, the wall thickness of described organic plasticss pipe one 3-1 and organic plasticss pipe two 3-2 is 0.5mm～1mm,
The wall thickness of described elastic metallic pipe one 4-1 and elastic metallic pipe two 4-2 is 0.2mm～0.5mm.
In the present embodiment, on described elastic metallic pipe one 4-1 and 2-1 phase clamping connection first with elastic clip one end offer many
Individual U-shaped groove one 12-1, offers multiple U on described elastic metallic pipe two 4-2 and with one end of collet two 2-2 phase clamping connection
Connected in star two 12-2.
In the present embodiment, the length of each U-shaped groove one 12-1 and each U-shaped groove two 12-2 is 15mm～20mm,
Width is 0.1mm～0.2mm.
In the present embodiment, it is additionally provided with the space between described plug 8 and elastic metallic pipe one 4-1 for increasing sealing
Sealing gasket one 9-1 of property, is additionally provided with close for increasing in the space between described adapter 7 and elastic metallic pipe two 4-2
Sealing gasket two 9-2 of envelope property.
Pass through embodiment 3- using the method that device of the present invention is detected to the water pressure resistance performance of capillary metal tube
10 illustrate：
Embodiment 3
In conjunction with Fig. 1, Fig. 3 and Fig. 4, the present embodiment utilizes the water pressure resistance performance to capillary metal tube for embodiment 1 described device
Detected, the capillary metal tube 5 being detected in the present embodiment is external diameter 2mm, the pure titanium tube of TA2 of wall thickness 0.2mm, is adopted
Organic plasticss pipe one 3-1 and organic plasticss pipe two 3-2 is the polyfluortetraethylene pipe of wall thickness 0.5mm, the elastic metallic being adopted
Pipe one 4-1 and elastic metallic pipe two 4-2 is the Ti-Ni marmem pipe of wall thickness 0.2mm.The present embodiment utilizes embodiment 1
The method that described device is detected to the water pressure resistance performance of capillary metal tube comprises the following steps：
Step one, capillary metal tube 5 is assemblied in capillary metal tube water pressure resistance performance detection means, then according to capillary
Metal tube 5 retention time under conditions of pressure is for P is that the water pressure resistance performance of t requires, and sets and wanted on hydrostatic testing machine 15
The pressure value P asked；Described P meets：P≤35MPa, described t meets：1min≤t≤5min；Capillary metal described in the present embodiment
The assembling process of pipe 5 is：First, it is set with organic plastic tube one 3-1 and elastic metallic pipe one successively in one end of capillary metal tube 5
4-1, the other end is set with organic plastic tube two 3-2 and elastic metallic pipe two 4-2 successively；Then, by the capillary metal tube 5 after suit
One end be clamped on the first 2-1 of elastic clip, the other end is clamped on collet two 2-2；Afterwards, by elastic metallic pipe one 4-
1 is closely connected by screw thread with plug 8, and elastic metallic pipe two 4-2 is closely connected by screw thread with adapter 7；This enforcement
In example, P=25MPa, t=1min；
Step 2, the injection pressure switch of unlatching hydrostatic testing machine 15, carry out water filling pressurization to capillary metal tube 5, treat capillary gold
Belong to after the hydraulic pressure value in pipe 5 reaches pressure set points 25MPa and start timing pressurize；
Step 3, reach after 1min after timing time, close injection pressure switch immediately, pressure release discharges water, and takes off capillary metal tube
5；
Step 4, detection capillary metal tube 5 have crack-free or Seepage；If crack-free or Seepage, proving should
Capillary metal tube 5 disclosure satisfy that the water pressure resistance performance for t for the retention time requires under conditions of pressure is for P；Otherwise, then proving should
Capillary metal tube 5 is unsatisfactory for the water pressure resistance performance that the retention time under conditions of pressure is for P is t and requires.In the present embodiment, detection
Learn this capillary metal tube 5 crack-free or Seepage, then prove that this capillary metal tube 5 disclosure satisfy that under conditions of 25MPa
Retention time is that the water pressure resistance performance of 1min requires.
Embodiment 4
In conjunction with Fig. 1, Fig. 3 and Fig. 4, the present embodiment utilizes the water pressure resistance performance to capillary metal tube for embodiment 1 described device
Detected, the capillary metal tube 5 employed in the present embodiment is external diameter 1.6mm, the pure titanium tube of TA1 of wall thickness 0.2mm, is adopted
Organic plasticss pipe one 3-1 and organic plasticss pipe two 3-2 be the polyfluortetraethylene pipe of wall thickness 0.6mm, the elasticity gold being adopted
Belong to the Ti-Ni marmem pipe that pipe one 4-1 and elastic metallic pipe two 4-2 is wall thickness 0.3mm.The present embodiment is using enforcement
The method that example 1 described device is detected to the water pressure resistance performance of capillary metal tube comprises the following steps：
Step one, capillary metal tube 5 is assemblied in capillary metal tube water pressure resistance performance detection means, then according to capillary
Metal tube 5 retention time under conditions of pressure is for P is that the water pressure resistance performance of t requires, and sets and wanted on hydrostatic testing machine 15
The pressure value P asked；Described P meets：P≤35MPa, described t meets：1min≤t≤5min；Capillary metal described in the present embodiment
The assembling process of pipe 5 is：First, it is set with organic plastic tube one 3-1 and elastic metallic pipe one successively in one end of capillary metal tube 5
4-1, the other end is set with organic plastic tube two 3-2 and elastic metallic pipe two 4-2 successively；Then, by the capillary metal tube 5 after suit
One end be clamped on the first 2-1 of elastic clip, the other end is clamped on collet two 2-2；Afterwards, by elastic metallic pipe one 4-
1 is closely connected by screw thread with plug 8, and elastic metallic pipe two 4-2 is closely connected by screw thread with adapter 7；This enforcement
In example, P=30MPa, t=5min；
Step 2, the injection pressure switch of unlatching hydrostatic testing machine 15, carry out water filling pressurization to capillary metal tube 5, treat capillary gold
Belong to after the hydraulic pressure value in pipe 5 reaches pressure set points 30MPa and start timing pressurize；
Step 3, reach after 5min after timing time, close injection pressure switch immediately, pressure release discharges water, and takes off capillary metal tube
5；
Step 4, detection capillary metal tube 5 have crack-free or Seepage；If crack-free or Seepage, proving should
Capillary metal tube 5 disclosure satisfy that the water pressure resistance performance for t for the retention time requires under conditions of pressure is for P；Otherwise, then proving should
Capillary metal tube 5 is unsatisfactory for the water pressure resistance performance that the retention time under conditions of pressure is for P is t and requires.In the present embodiment, detection
Learn this capillary metal tube 5 crack-free or Seepage, then prove that this capillary metal tube 5 disclosure satisfy that under conditions of 30MPa
Retention time is that the water pressure resistance performance of 5min requires.
Embodiment 5
In conjunction with Fig. 1, Fig. 3 and Fig. 4, the present embodiment utilizes the water pressure resistance performance to capillary metal tube for embodiment 1 described device
Detected, the capillary metal tube 5 employed in the present embodiment is external diameter 4mm, the copper pipe of wall thickness 0.5mm, and adopted is organic
Plastic tube one 3-1 and organic plasticss pipe two 3-2 is the polyfluortetraethylene pipe of wall thickness 0.6mm, the elastic metallic pipe one being adopted
4-1 and elastic metallic pipe two 4-2 is the Ti-Ni marmem pipe of wall thickness 0.3mm.The present embodiment utilizes described in embodiment 1
The method that device is detected to the water pressure resistance performance of capillary metal tube comprises the following steps：
Step one, capillary metal tube 5 is assemblied in capillary metal tube water pressure resistance performance detection means, then according to capillary
Metal tube 5 retention time under conditions of pressure is for P is that the water pressure resistance performance of t requires, and sets and wanted on hydrostatic testing machine 15
The pressure value P asked；Described P meets：P≤35MPa, described t meets：1min≤t≤5min；Capillary metal described in the present embodiment
The assembling process of pipe 5 is：First, it is set with organic plastic tube one 3-1 and elastic metallic pipe one successively in one end of capillary metal tube 5
4-1, the other end is set with organic plastic tube two 3-2 and elastic metallic pipe two 4-2 successively；Then, by the capillary metal tube 5 after suit
One end be clamped on the first 2-1 of elastic clip, the other end is clamped on collet two 2-2；Afterwards, by elastic metallic pipe one 4-
1 is closely connected by screw thread with plug 8, and elastic metallic pipe two 4-2 is closely connected by screw thread with adapter 7；This enforcement
In example, P=12MPa, t=2min；
Step 2, the injection pressure switch of unlatching hydrostatic testing machine 15, carry out water filling pressurization to capillary metal tube 5, treat capillary gold
Belong to after the hydraulic pressure value in pipe 5 reaches pressure set points 12MPa and start timing pressurize；
Step 3, reach after 2min after timing time, close injection pressure switch immediately, pressure release discharges water, and takes off capillary metal tube
5；
Step 4, detection capillary metal tube 5 have crack-free or Seepage；If crack-free or Seepage, proving should
Capillary metal tube 5 disclosure satisfy that the water pressure resistance performance for t for the retention time requires under conditions of pressure is for P；Otherwise, then proving should
Capillary metal tube 5 is unsatisfactory for the water pressure resistance performance that the retention time under conditions of pressure is for P is t and requires.In the present embodiment, detection
Learn this capillary metal tube 5 crack-free or Seepage, then prove that this capillary metal tube 5 disclosure satisfy that under conditions of 12MPa
Retention time is that the water pressure resistance performance of 2min requires.
Embodiment 6
In conjunction with Fig. 1, Fig. 3 and Fig. 4, the present embodiment utilizes the water pressure resistance performance to capillary metal tube for embodiment 1 described device
Detected, the capillary metal tube 5 employed in the present embodiment is external diameter 0.5mm, the TLM titanium alloy tube of wall thickness 0.15mm, institute
Using organic plasticss pipe one 3-1 and organic plasticss pipe two 3-2 be the polyfluortetraethylene pipe of wall thickness 0.5mm, the bullet being adopted
Property metal tube one 4-1 and elastic metallic pipe two 4-2 is the Ti-Ni marmem pipe of wall thickness 0.5mm.The present embodiment utilizes
The method that embodiment 1 described device is detected to the water pressure resistance performance of capillary metal tube comprises the following steps：
Step one, capillary metal tube 5 is assemblied in capillary metal tube water pressure resistance performance detection means, then according to capillary
Metal tube 5 retention time under conditions of pressure is for P is that the water pressure resistance performance of t requires, and sets and wanted on hydrostatic testing machine 15
The pressure value P asked；Described P meets：P≤35MPa, described t meets：1min≤t≤5min；Capillary metal described in the present embodiment
The assembling process of pipe 5 is：First, it is set with organic plastic tube one 3-1 and elastic metallic pipe one successively in one end of capillary metal tube 5
4-1, the other end is set with organic plastic tube two 3-2 and elastic metallic pipe two 4-2 successively；Then, by the capillary metal tube 5 after suit
One end be clamped on the first 2-1 of elastic clip, the other end is clamped on collet two 2-2；Afterwards, by elastic metallic pipe one 4-
1 is closely connected by screw thread with plug 8, and elastic metallic pipe two 4-2 is closely connected by screw thread with adapter 7；This enforcement
In example, P=35MPa, t=2min；
Step 2, the injection pressure switch of unlatching hydrostatic testing machine 15, carry out water filling pressurization to capillary metal tube 5, treat capillary gold
Belong to after the hydraulic pressure value in pipe 5 reaches pressure set points 35MPa and start timing pressurize；
Step 3, reach after 2min after timing time, close injection pressure switch immediately, pressure release discharges water, and takes off capillary metal tube
5；
Step 4, detection capillary metal tube 5 have crack-free or Seepage；If crack-free or Seepage, proving should
Capillary metal tube 5 disclosure satisfy that the water pressure resistance performance for t for the retention time requires under conditions of pressure is for P；Otherwise, then proving should
Capillary metal tube 5 is unsatisfactory for the water pressure resistance performance that the retention time under conditions of pressure is for P is t and requires.In the present embodiment, detection
Learn that fracture phenomena in this capillary metal tube 5, then prove that this capillary metal tube 5 can not meet and keep under conditions of 35MPa
Time is that the water pressure resistance performance of 2min requires.
Embodiment 7
In conjunction with Fig. 2, Fig. 3 and Fig. 4, the present embodiment utilizes the water pressure resistance performance to capillary metal tube for embodiment 2 described device
Detected, the capillary metal tube 5 employed in the present embodiment is external diameter 4mm, the TA16 titanium alloy tube of wall thickness 0.4mm, is adopted
Organic plasticss pipe one 3-1 and organic plasticss pipe two 3-2 is the polyfluortetraethylene pipe of wall thickness 0.5mm, the elasticity being adopted
Metal tube one 4-1 and elastic metallic pipe two 4-2 is the Ti-Ni marmem pipe of wall thickness 0.2mm.The present embodiment is using real
Apply the method that example 1 described device detected to the water pressure resistance performance of capillary metal tube to comprise the following steps：
Step one, capillary metal tube 5 is assemblied in capillary metal tube water pressure resistance performance detection means, then according to capillary
Metal tube 5 retention time under conditions of pressure is for P is that the water pressure resistance performance of t requires, and sets and wanted on hydrostatic testing machine 15
The pressure value P asked；Described P meets：P≤35MPa, described t meets：1min≤t≤5min；Capillary metal described in the present embodiment
The assembling process of pipe 5 is：First, it is set with organic plastic tube one 3-1 and elastic metallic pipe one successively in one end of capillary metal tube 5
4-1, the other end is set with organic plastic tube two 3-2 and elastic metallic pipe two 4-2 successively；Then, by the capillary metal tube 5 after suit
One end be clamped on the first 2-1 of elastic clip, the other end is clamped on collet two 2-2；Afterwards, by elastic metallic pipe one 4-
1 is closely connected by screw thread with plug 8, and elastic metallic pipe two 4-2 is closely connected by screw thread with adapter 7；This enforcement
In example, P=10MPa, t=5min；
Step 2, the injection pressure switch of unlatching hydrostatic testing machine 15, carry out water filling pressurization to capillary metal tube 5, treat capillary gold
Belong to after the hydraulic pressure value in pipe 5 reaches pressure set points 10MPa and start timing pressurize；
Step 3, reach after 5min after timing time, close injection pressure switch immediately, pressure release discharges water, and takes off capillary metal tube
5；
Step 4, detection capillary metal tube 5 have crack-free or Seepage；If crack-free or Seepage, proving should
Capillary metal tube 5 disclosure satisfy that the water pressure resistance performance for t for the retention time requires under conditions of pressure is for P；Otherwise, then proving should
Capillary metal tube 5 is unsatisfactory for the water pressure resistance performance that the retention time under conditions of pressure is for P is t and requires.In the present embodiment, detection
Learn that Seepage in this capillary metal tube 5, then prove that this capillary metal tube 5 can not meet and keep under conditions of 10MPa
Time is that the water pressure resistance performance of 5min requires.
Embodiment 8
In conjunction with Fig. 2, Fig. 3 and Fig. 4, the present embodiment utilizes the water pressure resistance performance to capillary metal tube for embodiment 2 described device
Detected, the capillary metal tube 5 employed in the present embodiment is external diameter 5mm, the TA18 titanium alloy tube of wall thickness 1.2mm, is adopted
Organic plasticss pipe one 3-1 and organic plasticss pipe two 3-2 is the polyfluortetraethylene pipe of wall thickness 1mm, the elasticity gold being adopted
Belong to the Ti-Ni marmem pipe that pipe one 4-1 and elastic metallic pipe two 4-2 is wall thickness 0.5mm.The present embodiment is using enforcement
The method that example 1 described device is detected to the water pressure resistance performance of capillary metal tube comprises the following steps：
Step one, capillary metal tube 5 is assemblied in capillary metal tube water pressure resistance performance detection means, then according to capillary
Metal tube 5 retention time under conditions of pressure is for P is that the water pressure resistance performance of t requires, and sets and wanted on hydrostatic testing machine 15
The pressure value P asked；Described P meets：P≤35MPa, described t meets：1min≤t≤5min；Capillary metal described in the present embodiment
The assembling process of pipe 5 is：First, it is set with organic plastic tube one 3-1 and elastic metallic pipe one successively in one end of capillary metal tube 5
4-1, the other end is set with organic plastic tube two 3-2 and elastic metallic pipe two 4-2 successively；Then, by the capillary metal tube 5 after suit
One end be clamped on the first 2-1 of elastic clip, the other end is clamped on collet two 2-2；Afterwards, by elastic metallic pipe one 4-
1 is closely connected by screw thread with plug 8, and elastic metallic pipe two 4-2 is closely connected by screw thread with adapter 7；This enforcement
In example, P=5MPa, t=5min；
Step 2, the injection pressure switch of unlatching hydrostatic testing machine 15, carry out water filling pressurization to capillary metal tube 5, treat capillary gold
Belong to after the hydraulic pressure value in pipe 5 reaches pressure set points 5MPa and start timing pressurize；
Step 3, reach after 5min after timing time, close injection pressure switch immediately, pressure release discharges water, and takes off capillary metal tube
5；
Step 4, detection capillary metal tube 5 have crack-free or Seepage；If crack-free or Seepage, proving should
Capillary metal tube 5 disclosure satisfy that the water pressure resistance performance for t for the retention time requires under conditions of pressure is for P；Otherwise, then proving should
Capillary metal tube 5 is unsatisfactory for the water pressure resistance performance that the retention time under conditions of pressure is for P is t and requires.In the present embodiment, detection
Learn that rupture or Seepage in this capillary metal tube 5, then prove that this capillary metal tube 5 disclosure satisfy that the bar in 5MPa
The part lower retention time is that the water pressure resistance performance of 5min requires.
Embodiment 9
In conjunction with Fig. 2, Fig. 3 and Fig. 4, the present embodiment utilizes the water pressure resistance performance to capillary metal tube for embodiment 2 described device
Detected, the capillary metal tube 5 employed in the present embodiment is external diameter 2mm, the stainless steel tube of wall thickness 0.2mm, is adopted
Organic plasticss pipe one 3-1 and organic plasticss pipe two 3-2 is the polyfluortetraethylene pipe of wall thickness 0.5mm, the elastic metallic being adopted
Pipe one 4-1 and elastic metallic pipe two 4-2 is the Ti-Ni marmem pipe of wall thickness 0.2mm.The present embodiment utilizes embodiment 1
The method that described device is detected to the water pressure resistance performance of capillary metal tube comprises the following steps：
Step one, capillary metal tube 5 is assemblied in capillary metal tube water pressure resistance performance detection means, then according to capillary
Metal tube 5 retention time under conditions of pressure is for P is that the water pressure resistance performance of t requires, and sets and wanted on hydrostatic testing machine 15
The pressure value P asked；Described P meets：P≤35MPa, described t meets：1min≤t≤5min；Capillary metal described in the present embodiment
The assembling process of pipe 5 is：First, it is set with organic plastic tube one 3-1 and elastic metallic pipe one successively in one end of capillary metal tube 5
4-1, the other end is set with organic plastic tube two 3-2 and elastic metallic pipe two 4-2 successively；Then, by the capillary metal tube 5 after suit
One end be clamped on the first 2-1 of elastic clip, the other end is clamped on collet two 2-2；Afterwards, by elastic metallic pipe one 4-
1 is closely connected by screw thread with plug 8, and elastic metallic pipe two 4-2 is closely connected by screw thread with adapter 7；This enforcement
In example, P=15MPa, t=5min；
Step 2, the injection pressure switch of unlatching hydrostatic testing machine 15, carry out water filling pressurization to capillary metal tube 5, treat capillary gold
Belong to after the hydraulic pressure value in pipe 5 reaches pressure set points 15MPa and start timing pressurize；
Step 3, after timing time be after 5min, immediately close injection pressure switch, pressure release discharges water, and takes off capillary metal tube 5；
Step 4, detection capillary metal tube 5 have crack-free or Seepage；If crack-free or Seepage, proving should
Capillary metal tube 5 disclosure satisfy that the water pressure resistance performance for t for the retention time requires under conditions of pressure is for P；Otherwise, then proving should
Capillary metal tube 5 is unsatisfactory for the water pressure resistance performance that the retention time under conditions of pressure is for P is t and requires.In the present embodiment, detection
Learn that rupture or Seepage in this capillary metal tube 5, then prove that this capillary metal tube 5 disclosure satisfy that 15MPa's
Under the conditions of the retention time be 5min water pressure resistance performance require.
Embodiment 10
In conjunction with Fig. 2, Fig. 3 and Fig. 4, the present embodiment utilizes the water pressure resistance performance to capillary metal tube for embodiment 2 described device
Detected, the capillary metal tube 5 employed in the present embodiment is external diameter 6mm, the aluminum pipe of wall thickness 0.6mm, and adopted is organic
Plastic tube one 3-1 and organic plasticss pipe two 3-2 is the polyfluortetraethylene pipe of wall thickness 1mm, elastic metallic pipe one 4-1 being adopted
It is the Ti-Ni marmem pipe of wall thickness 0.5mm with elastic metallic pipe two 4-2.The present embodiment utilizes and fills described in embodiment 1
Put the method that the water pressure resistance performance to capillary metal tube detected to comprise the following steps：
Step one, capillary metal tube 5 is assemblied in capillary metal tube water pressure resistance performance detection means, then according to capillary
Metal tube 5 retention time under conditions of pressure is for P is that the water pressure resistance performance of t requires, and sets and wanted on hydrostatic testing machine 15
The pressure value P asked；Described P meets：P≤35MPa, described t meets：1min≤t≤5min；Capillary metal described in the present embodiment
The assembling process of pipe 5 is：First, it is set with organic plastic tube one 3-1 and elastic metallic pipe one successively in one end of capillary metal tube 5
4-1, the other end is set with organic plastic tube two 3-2 and elastic metallic pipe two 4-2 successively；Then, by the capillary metal tube 5 after suit
One end be clamped on the first 2-1 of elastic clip, the other end is clamped on collet two 2-2；Afterwards, by elastic metallic pipe one 4-
1 is closely connected by screw thread with plug 8, and elastic metallic pipe two 4-2 is closely connected by screw thread with adapter 7；This enforcement
In example, P=20MPa, t=2min；
Step 2, the injection pressure switch of unlatching hydrostatic testing machine 15, carry out water filling pressurization to capillary metal tube 5, treat capillary gold
Belong to after the hydraulic pressure value in pipe 5 reaches pressure set points 20MPa and start timing pressurize；
Step 3, reach after 2min after timing time, close injection pressure switch immediately, pressure release discharges water, and takes off capillary metal tube
5；
Step 4, detection capillary metal tube 5 have crack-free or Seepage；If crack-free or Seepage, proving should
Capillary metal tube 5 disclosure satisfy that the water pressure resistance performance for t for the retention time requires under conditions of pressure is for P；Otherwise, then proving should
Capillary metal tube 5 is unsatisfactory for the water pressure resistance performance that the retention time under conditions of pressure is for P is t and requires.In the present embodiment, detection
Learn that rupture or Seepage in this capillary metal tube 5, then prove that this capillary metal tube 5 disclosure satisfy that 20MPa's
Under the conditions of the retention time be 2min water pressure resistance performance require.
In sum, capillary metal tube water pressure resistance performance detection means simple operation of the present invention, accuracy of detection is high, to material
Lossless, low cost, high working efficiency, disclosure satisfy that hydraulic pressure is not more than the routinely capillary metal tube water pressure resistance detection of 35MPa
Require, can be rapidly completed by a Non-Destructive Testing, uniformity, stability of capillary metal pipe material quality etc. can be effectively improved, have
Significantly promotional value.
The above, be only presently preferred embodiments of the present invention, not the present invention imposed any restrictions, every according to the present invention
Any simple modification, change and equivalent structure change that technical spirit is made to above example, all still fall within skill of the present invention
In the protection domain of art scheme.
Claims (9)
1. a kind of capillary metal tube water pressure resistance performance detection means, including hydrostatic testing machine (15) be connected to hydrostatic testing machine
(15) water pipe (6) on, also include pedestal (1) and plug (8) it is characterised in that：It is provided with for clamping on described pedestal (1)
The elastic clip first (2-1) of capillary metal tube (5) and collet two (2-2), described elastic clip first (2-1) and capillary metal
It is provided with, between pipe (5), the organic plasticss pipe one (3-1) being sleeved on capillary metal tube (5) and be sleeved on organic plasticss pipe one
(3-1) the elastic metallic pipe one (4-1) on, is provided between described collet two (2-2) and capillary metal tube (5) and is sleeved on
Organic plasticss pipe two (3-2) on capillary metal tube (5) and be sleeved on the elastic metallic pipe two on organic plasticss pipe two (3-2)
(4-2), one end of described elastic metallic pipe one (4-1) first with elastic clip (2-1) phase clamping connection, the other end is provided with external screw thread one
(10-1), described plug (8) is provided with the female thread one (10-2) being adapted with described external screw thread one (10-1), described elasticity
One end of metal tube two (4-2) and collet two (2-2) phase clamping connection, the other end is provided with external screw thread two (11-1), described water
It is provided with adapter (7) on pipe (6), described adapter (7) is provided with and is adapted with described external screw thread two (11-1)
Female thread two (11-2).
2. a kind of capillary metal tube water pressure resistance performance detection means according to claim 1 it is characterised in that：Described organic
It is additionally provided with relative sliding for preventing organic plasticss pipe one (3-1) and elastic metallic pipe one (4-1) from occurring on plastic tube one (3-1)
Dynamic annular ridge one (3-11)；Be additionally provided with described organic plasticss pipe (3-2) for prevent organic plasticss pipe two (3-2) with
There is the annular ridge two (3-21) relatively sliding in elastic metallic pipe two (4-2).
3. a kind of capillary metal tube water pressure resistance performance detection means according to claim 1 and 2 it is characterised in that：Described
Organic plasticss pipe one (3-1) and organic plasticss pipe two (3-2) are polyfluortetraethylene pipe, described elastic metallic pipe one (4-1) with
Elastic metallic pipe two (4-2) is Ti-Ni marmem pipe.
4. a kind of capillary metal tube water pressure resistance performance detection means according to claim 1 and 2 it is characterised in that：Described
Organic plasticss pipe one (3-1) is 0.5mm～1mm with the wall thickness of organic plasticss pipe two (3-2), described elastic metallic pipe one (4-
1) it is 0.2mm～0.5mm with the wall thickness of elastic metallic pipe two (4-2).
5. a kind of capillary metal tube water pressure resistance performance detection means according to claim 1 and 2 it is characterised in that：Described
Elastic metallic pipe one (4-1) is gone up and one end of first with elastic clip (2-1) phase clamping connection offers multiple U-shaped grooves one (12-1),
Described elastic metallic pipe two (4-2) is upper and offers multiple U-shaped groove two (12- with one end of collet two (2-2) phase clamping connection
2).
6. a kind of capillary metal tube water pressure resistance performance detection means according to claim 5 it is characterised in that：Each is U-shaped
Groove one (12-1) is 15mm～20mm with the length of each U-shaped groove two (12-2), and width is 0.1mm～0.2mm.
7. a kind of method water pressure resistance performance of capillary metal tube being detected using device as claimed in claim 1 or 2, its
It is characterised by：The method comprises the following steps：
Step one, capillary metal tube (5) is assemblied in capillary metal tube water pressure resistance performance detection means, then according to capillary gold
Belong to the water pressure resistance performance that pipe (5) retention time under conditions of pressure is for P is t to require, above set pressure in hydrostatic testing machine (15)
Power P；Described P meets：P≤35MPa, described t meets：1min≤t≤5min；
Step 2, the injection pressure switch of unlatching hydrostatic testing machine (15), carry out water filling pressurization to capillary metal tube (5), treat capillary gold
Belong to after the hydraulic pressure in pipe (5) reaches set pressure P and start timing pressurize；
Step 3, after timing time be after t, immediately close injection pressure switch, take off capillary metal tube (5) after the pressure release that discharges water；
Step 4, detection capillary metal tube (5) have crack-free or Seepage；If crack-free or Seepage, prove described
Capillary metal tube (5) disclosure satisfy that the water pressure resistance performance for t for the retention time requires under conditions of pressure is for P；Otherwise, then prove
Described capillary metal tube (5) is unsatisfactory for the water pressure resistance performance that the retention time under conditions of pressure is for P is t and requires.
8. method according to claim 7 it is characterised in that：The external diameter Ф of capillary metal tube described in step one (5) is full
Foot：0.5mm≤Ф≤6mm, the wall thickness δ of described capillary metal tube (5) meets：The unit of 0.1 Ф≤δ≤0.3 Ф, δ is mm.
9. method according to claim 7 it is characterised in that：The material of capillary metal tube described in step one (5) be titanium,
Copper, aluminum, titanium alloy or rustless steel.
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| CN106289959B (en) * | 2016-08-17 | 2018-10-12 | 中国商用飞机有限责任公司 | Detachable built-up jig for the experiment of aviation pipeline bonding strength |
| CN108593451B (en) * | 2018-05-30 | 2020-10-09 | 天津赛瑞创享科技有限公司 | Novel pressure testing method for hydraulic press |
| CN111089712A (en) * | 2019-12-09 | 2020-05-01 | 北京动力机械研究所 | Thin-wall capillary pipeline pressure-bearing detection device |
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