CN206725355U - A kind of rapid evaluation instrument of butt fusion welding weld bond quality - Google Patents
A kind of rapid evaluation instrument of butt fusion welding weld bond quality Download PDFInfo
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- CN206725355U CN206725355U CN201720478378.1U CN201720478378U CN206725355U CN 206725355 U CN206725355 U CN 206725355U CN 201720478378 U CN201720478378 U CN 201720478378U CN 206725355 U CN206725355 U CN 206725355U
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- strip
- weld bond
- processing component
- roll shaft
- arm
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Abstract
It the utility model is related to a kind of rapid evaluation instrument of butt fusion welding weld bond quality, it is characterized in that, it is made up of rubber handle, the arm of force, strip steady pin, strip processing component, set up two groups of strip processing components are symmetrical, both connecting places are flexibly connected by connecting roll shaft, strip to be measured is fixed in the top of the strip processing component by strip steady pin, the outside of left and right sides strip processing component connects an arm of force respectively, the arm of force holds position and is provided with rubber handle, forms the lever construction using roll shaft as fixing point.The utility model is simple to operate, when carrying out weld bond stretching tear test, it is thus only necessary to which two people can complete to operate；It is quick direct, when carrying out weld bond stretching tear test, it is only necessary to which a few minutes can complete whole process；Use range is wide, and the instrument goes for the heat-melting butt-joint weld bond detection of conventional most of bore polyethylene pipes, is not limited by outer diameter tube and wall thickness.
Description
[technical field]
The utility model is related to butt welding technical field, specifically a kind of butt fusion welding weld bond quality it is quick
Evaluation instrument.
[background technology]
Polyethylene pipe is the main pipeline that gas conveyance conduit, water supply and sewerage pipeline use in current Municipal Industry
Type, it has occupied more than 90% market in European gas industry, has also obtained significantly increasing in recent years in China.But
It is that polyethylene pipe welding is at present still without the means of effective Site Detection, simply by virtue of outward appearance detection and laboratory inspection
Survey and carry out mass discrimination, it is necessary to carry out procedure qualification when being changed especially for welding material, equipment, technique, personnel
When, carry out laboratory test test and just seem that the time is slow, cumbersome, have considerable influence to engineering construction progress.This instrument can be with
Welding piece is quickly detected for scene, shortens detection time, reaches the quick effect for carrying out procedure qualification.
The connected mode of polyethylene pipe mainly is welded as leading with heat-melting butt-joint, but due to itself spy of material property
Point, polyethylene pipe carry out nondestructive inspection detection like that without image of Buddha metallic conduit, rely primarily on outward appearance and are detected.Also, according to
According to《Combustion gas polyethylene pipe welding technique rule》TSG D2002-2006 " Article 8 duct element manufacturer and pipeline
Installation unit carries out heat-melting butt-joint welding, and qualification of welding procedure should be carried out by having during situations below：(1) this code is used first
The welding condition (seeing appendix A) of recommendation or other welding conditions；(2) different raw material ranks (such as PE80 with
PE100 duct element) mutually welds；(3) duct element of same raw material rank, melt mass flow rate (MFR) difference are big
In 0.5g/10min (190 DEG C, 5kg)；(4) duct element is to being welded with particular/special requirement；(5) construction environment and welding machine work bar
Part has larger gap.Pipeline welding is examined can be divided into non-destructive and destructive test and experiment with experiment.Nondestructive test
It is that macroscopical (outward appearance) checks with experiment Main Means, the quality control for duct element manufacturing process or Pipe installing scene
With the self-test of operating personnel；Destructive test is mainly used in qualification of welding procedure and the disputable weld bond of welding quality with experiment
Experiment.The destructive testing of polyethylene pipe according in GB 19810 regulation carry out, it is necessary to large-scale special stretching experiment equipment and
Corresponding qualification reviewer, laboratory, experiment can not be carried out at the scene, and complex process, cycle length.It is quick for needing
The situation of qualification of welding procedure can not try out before being constructed, and cause time, waste economically, be made for rapid construction situation
Into inconvenience.The detection that a kind of quickly heat-melting butt-joint welding examines equipment to carry out scene to pipe welding port is generally wished in industry
Instrument, to meet that supervisor, owner's unit can be judged the feasibility of welding equipment, personnel, welding procedure.
[content of the invention]
A kind of the defects of the purpose of this utility model is to overcome prior art to exist, there is provided butt fusion welding weld bond quality
Rapid evaluation instrument.
To achieve the above object, a kind of rapid evaluation instrument of butt fusion welding weld bond quality is designed, it is characterised in that by
Rubber handle, the arm of force, strip steady pin, strip processing component composition, set up two groups of strip processing components are symmetrical, both
Connecting place is flexibly connected by connecting roll shaft, and strip to be measured is fixed in the top of the strip processing component by strip steady pin,
The outside of left and right sides strip processing component connects an arm of force respectively, and the arm of force holds position and is provided with rubber handle, is formed
Lever construction using roll shaft as fixing point.
The strip processing component is made up of pedestal, strip placed cavity, connection roll shaft, and the upper surface of the pedestal is provided with examination
Bar placed cavity, strip to be measured are positioned in the strip placed cavity, and are inserted perpendicularly into by strip steady pin in strip placed cavity
Fixed, the connecting place of left and right sides pedestal is flexibly connected by same connection roll shaft.
Junction, the surface of connection roll shaft of left and right sides strip processing component correspond to polyethylene thermofussion welding to be measured just
Position while welding.
After the completion of the instrument, polyethylene heat-melting butt-joint weld bond can quickly be evaluated, judge weld bond whether one
Determine to ftracture under drawing force, after by cracking in the form of tentatively judge the quality of weld bond.
The instrument has the characteristics of following in welding quality deterministic process：
1st, it is simple to operate, when carrying out weld bond stretching tear test, it is thus only necessary to which two people can complete to operate.
2nd, tool design uses lever principle, and operating personnel are light, laborsaving when operating.
3rd, it is quick direct, when carrying out weld bond stretching tear test, it is only necessary to which a few minutes can complete whole process.
4th, instrument is easy to carry, and instrument gross weight is no more than 5 kilograms, is easy to carry, and not affected by environment, is easy to apply
Work and administrative staff carry out the operation of job site.
5th, use range is wide, and the instrument goes for the heat-melting butt-joint weld bond of conventional most of bore polyethylene pipes
Detection, is not limited by outer diameter tube and wall thickness.
[brief description of the drawings]
Fig. 1 a are the instrument front view
Fig. 1 b are the instrument top view
Fig. 2 is strip processing structure part partial enlarged drawing
Fig. 3 is to use operating effect figure
Fig. 4 is electron microscope
Description of symbols in figure
1 rubber handle, 2 arm of forces, 3 strip steady pins, 4 strip processing components, 5 pedestals, 6 strip placed cavities, 7 connection roll
Axle.
[embodiment]
According to GB/T 19810《The survey of polyethylene (PE) tubing and pipe fitting butt-fusion welded joint tensile strength and failure mode
It is fixed》Standard requirement, is processed into dumbbell specimen by polyethylene (PE) tubing butt-fusion welded joint, sample is applied with constant speed
One pulling force.Sample when bearing load on cupping machine, in welding position finally near joints destroy by stress concentration.Hot melt
Banjo fixing butt jointing quality judged with failure mode and tensile strength, failure mode as shown in figure 4,
Wherein, solder joint position or generation ductile rupture pattern near it, judge that welding is qualified, such as generation brittle fracture
Pattern, then welding failure.
By reasons such as institute's test material grades, the tensile yield strength of weld bond can not provide standard value, welding quality master
Will be based on weld bond failure mode.Uniform draw speed is defined in standard, the purpose is to avoid because weld bond occurs quickly
Cracking destruction situation, in the case where avoiding rapid crack propagation situation from occurring, you can detected by stretching.
By the instrument of the design, by artificial strength, power is amplified by lever principle, can be in stretch position shape
Into more than 1000bar pulling force, 250 millimeters of diameter is adapted to, standard size ratio is SDR11, material rate PE100 and 250
The quick detection of the heat-melting butt-joint weld bond quality of the following caliber pipe of millimeter.
The concrete structure of this instrument is as shown in Fig. 1 a, 1b, by rubber handle, the arm of force, strip steady pin, strip processing component
Composition, set up two groups of strip processing components are symmetrical, both connecting places are flexibly connected by connecting roll shaft, at the strip
Strip to be measured is fixed in the top for managing component by strip steady pin, and the outside of left and right sides strip processing component connects one respectively
The arm of force, the arm of force hold position and are provided with rubber handle, form the lever construction using roll shaft as fixing point.
As shown in Fig. 2 the strip processing component by pedestal, strip placed cavity, connection roll shaft form, the pedestal it is upper
Surface is provided with strip placed cavity, and strip to be measured is positioned in the strip placed cavity, and is inserted perpendicularly into examination by strip steady pin
Fixed in bar placed cavity, the connecting place of left and right sides pedestal is flexibly connected by same connection roll shaft.
Polyethylene pipe Welding quality test step is carried out using the instrument：
1st, by the axially cutting strip into wide 10mm ± 1 of polyethylene pipe hot melt butt welding opening's edge pipeline, weld seam both sides length
Degree is left and taken more than 150mm；
2nd, it is the arm of force is horizontal positioned；
3rd, strip is put into strip placed cavity, and ensures that strip position while welding is in the centre of connecting rod；Such as Fig. 3 institutes
Show, junction, the surface of connection roll shaft of left and right sides strip processing component correspond to the weldering of polyethylene thermofussion welding to be measured just
Stitch position.
4th, strip steady pin is screwed in into strip fixing port, and tightened；
5th, firmly hold with a firm grip handle, inwardly firmly, butt welding strip is stretched；
If the 6, strip ftractures, situation is destroyed by crack location and judges whether weld bond is qualified.
Claims (3)
1. a kind of rapid evaluation instrument of butt fusion welding weld bond quality, it is characterised in that solid by rubber handle, the arm of force, strip
Rationed marketing, strip processing component composition, are set up two groups of strip processing components are symmetrical, and both connecting places are lived by connecting roll shaft
Strip to be measured, left and right sides strip processing component are fixed in dynamic connection, the top of the strip processing component by strip steady pin
Outside connect an arm of force respectively, the arm of force holds position and is provided with rubber handle, forms the lever using roll shaft as fixing point
Structure.
A kind of 2. rapid evaluation instrument of butt fusion welding weld bond quality as claimed in claim 1, it is characterised in that the examination
Bar processing component is made up of pedestal, strip placed cavity, connection roll shaft, and the upper surface of the pedestal is provided with strip placed cavity, to be measured
Strip is positioned in the strip placed cavity, and fixed, the left and right sides is inserted perpendicularly into strip placed cavity by strip steady pin
The connecting place of pedestal is flexibly connected by same connection roll shaft.
A kind of 3. rapid evaluation instrument of butt fusion welding weld bond quality as claimed in claim 1, it is characterised in that left and right two
Junction, the surface of connection roll shaft of side strip processing component correspond to the position while welding of polyethylene thermofussion welding to be measured just.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720478378.1U CN206725355U (en) | 2017-05-03 | 2017-05-03 | A kind of rapid evaluation instrument of butt fusion welding weld bond quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720478378.1U CN206725355U (en) | 2017-05-03 | 2017-05-03 | A kind of rapid evaluation instrument of butt fusion welding weld bond quality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206725355U true CN206725355U (en) | 2017-12-08 |
Family
ID=60508534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720478378.1U Expired - Fee Related CN206725355U (en) | 2017-05-03 | 2017-05-03 | A kind of rapid evaluation instrument of butt fusion welding weld bond quality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206725355U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219120A (en) * | 2017-05-03 | 2017-09-29 | 上海亚大塑料制品有限公司 | The rapid evaluation instrument and rapid method for assessment of a kind of butt fusion welding weld bond quality |
-
2017
- 2017-05-03 CN CN201720478378.1U patent/CN206725355U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219120A (en) * | 2017-05-03 | 2017-09-29 | 上海亚大塑料制品有限公司 | The rapid evaluation instrument and rapid method for assessment of a kind of butt fusion welding weld bond quality |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171208 Termination date: 20180503 |