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 PDF

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Publication number
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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CN
China
Prior art keywords
strip
weld bond
processing component
roll shaft
arm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201720478378.1U
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Chinese (zh)
Inventor
刘旭东
赵鑫
蒋光兴
包怡栋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI GEROG FISCHER CHINAUST PLASTICS FITTING CO Ltd
Shanghai Shen Yu Machinery Manufacturing Co Ltd
SHANGHAI YADA PLASTIC PRODUCTS CO Ltd
Original Assignee
SHANGHAI GEROG FISCHER CHINAUST PLASTICS FITTING CO Ltd
Shanghai Shen Yu Machinery Manufacturing Co Ltd
SHANGHAI YADA PLASTIC PRODUCTS CO Ltd
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Filing date
Publication date
Application filed by SHANGHAI GEROG FISCHER CHINAUST PLASTICS FITTING CO Ltd, Shanghai Shen Yu Machinery Manufacturing Co Ltd, SHANGHAI YADA PLASTIC PRODUCTS CO Ltd filed Critical SHANGHAI GEROG FISCHER CHINAUST PLASTICS FITTING CO Ltd
Priority to CN201720478378.1U priority Critical patent/CN206725355U/en
Application granted granted Critical
Publication of CN206725355U publication Critical patent/CN206725355U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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

A kind of rapid evaluation instrument of butt fusion welding weld bond quality
[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.
CN201720478378.1U 2017-05-03 2017-05-03 A kind of rapid evaluation instrument of butt fusion welding weld bond quality Expired - Fee Related CN206725355U (en)

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

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Publication Number Publication Date
CN206725355U true CN206725355U (en) 2017-12-08

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Cited By (1)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20171208

Termination date: 20180503