CN106290363A - A kind of quality inspection technique after steel-pipe welding - Google Patents
A kind of quality inspection technique after steel-pipe welding Download PDFInfo
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- CN106290363A CN106290363A CN201610627372.6A CN201610627372A CN106290363A CN 106290363 A CN106290363 A CN 106290363A CN 201610627372 A CN201610627372 A CN 201610627372A CN 106290363 A CN106290363 A CN 106290363A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
- G01N27/84—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields by applying magnetic powder or magnetic ink
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/307—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by a compressed or tensile-stressed spring; generated by pneumatic or hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0234—Metals, e.g. steel
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The present invention is the quality inspection technique after a kind of steel-pipe welding, comprises the step of: 1) visual examination；2) nondestructive inspection detection；3) surface quality inspection；4) stretch and impact inspection.Quality inspection technique after a kind of steel-pipe welding of the present invention, it is ensured that the qualification rate after steel-pipe welding is up to 99.99%, has fully ensured that the quality of steel-pipe welding.
Description
Technical field
Check field after the present invention relates to steel-pipe welding, particularly relate to the quality inspection technique after a kind of steel-pipe welding.
Background technology
In view of steel construction had from advantages such as heavy and light, structural behaviour are good, the armored concrete knot that steel construction is more traditional
Structure is more suitable for the construction application of Factory Building.The method of attachment of steel construction has welding, rivet interlacement and bolt connection etc..
The steel pipe nearly having now about 50% have to be processed by welding processing before early investment is applied, and welding is still
It it is the main method of fastener for connection.And in present steel-pipe welding, electric arc welding is basic method of attachment.It is welded to connect
Strong point is that the structure of any shape all can use solder design, simple structure, general unnecessary spliced materials, and saving of labor saves steel, and
Can realize unmanned operation, production efficiency is higher.In order to ensure the welding quality of steel pipe, after we devise a kind of steel-pipe welding
Quality inspection technique.
Summary of the invention
The present invention provides the quality inspection technique after a kind of steel-pipe welding, comprises the step of:
1) visual examination:
Inspection personnel's naked eyes detect, the weld appearance of steel pipe should be uniform, fine and close, should not have crackle, overlap, pore, slag inclusion,
Undercut arc crater, incompletely filling defect, meet drawing requirement by tape measuring size；
2) nondestructive inspection detection:
Non-Destructive Testing check criteria is: first-order weld should carry out the examination of 100%；Second-order weld should be inspected by random samples, sampling observation
Ratio 20%；Three grades of weld seams of complete penetraction and fusion in welding do not carry out Non-Destructive Testing；
3) surface quality inspection:
The specific requirement that surface quality checks is as follows:
A, the reinforcement of detection butt welding of steel tube seam are 2-5mm, and polish with sander；
B, steel pipe seam are even with steel pipe mother metal surface along excessive, the foot welding height uniformity of same weld seam；
C, the undercut of steel pipe seam are less than 1mm less than 0.5mm, the undercut of secondary stress weld seam；
D, butt welding of steel tube seam flushes with the polishing of steel pipe mother metal surface；
4) stretch and impact inspection:
Use Universal hydraulic testing machine that steel pipe carries out tension test, detect yield strength, breakdown strength, percentage elongation；Make
With shock machine, steel pipe is carried out the detection of ballistic work.
Further, the method for described nondestructive inspection detection is that ultrasonic examination, radiographic inspection, magnetic powder inspection and infiltration are visited
One or both of damaging the spleen and stomach.
Further, the described quality inspection technique after a kind of steel-pipe welding is carried out in indoor, and indoor require relative humidity
≤ 80%, wind speed≤10m/s.
The invention has the beneficial effects as follows: the quality inspection technique after a kind of steel-pipe welding of the present invention, it is ensured that
Qualification rate after steel-pipe welding is up to 99.99%, has fully ensured that the quality of steel-pipe welding.
Detailed description of the invention
It is described in detail below with reference to embodiments of the invention.
Quality inspection technique after a kind of steel-pipe welding, comprises the step of:
1) visual examination:
Inspection personnel's naked eyes detect, the weld appearance of steel pipe should be uniform, fine and close, should not have crackle, overlap, pore, slag inclusion,
Undercut arc crater, incompletely filling defect, meet drawing requirement by tape measuring size；
2) nondestructive inspection detection:
Non-Destructive Testing check criteria is: first-order weld should carry out the examination of 100%；Second-order weld should be inspected by random samples, sampling observation
Ratio 20%；Three grades of weld seams of complete penetraction and fusion in welding do not carry out nondestructive inspection detection；
3) surface quality inspection:
The specific requirement that surface quality checks is as follows:
A, the reinforcement of detection butt welding of steel tube seam are 2-5mm, and polish with sander；
B, steel pipe seam are even with steel pipe mother metal surface along excessive, the foot welding height uniformity of same weld seam；
C, the undercut of steel pipe seam are less than 1mm less than 0.5mm, the undercut of secondary stress weld seam；
D, butt welding of steel tube seam flushes with the polishing of steel pipe mother metal surface；
4) stretch and impact inspection:
Use Universal hydraulic testing machine that steel pipe carries out tension test, detect yield strength, breakdown strength, percentage elongation；Make
With shock machine, steel pipe is carried out the detection of ballistic work.
Further, the method for described nondestructive inspection detection is that ultrasonic examination, radiographic inspection, magnetic powder inspection and infiltration are visited
One or both of damaging the spleen and stomach.
Further, the described quality inspection technique after a kind of steel-pipe welding is carried out in indoor, and indoor require relative humidity
≤ 80%, wind speed≤10m/s.
Principle: through checking, the outward appearance of steel-pipe welding, surface quality, stretch-proof and shock resistance all can obtain sufficiently
Ensure, and check that underproof product is sent to immediately and reprocess, it is to avoid trouble after sale.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (3)
1. the quality inspection technique after a steel-pipe welding, it is characterised in that comprise the step of:
1) visual examination:
Inspection personnel's naked eyes detect, and the weld appearance of steel pipe should be uniform, fine and close, should not have crackle, overlap, pore, slag inclusion, undercut
Arc crater, incompletely filling defect, meet drawing requirement by tape measuring size；
2) nondestructive inspection detection:
Non-Destructive Testing check criteria is: first-order weld should carry out the examination of 100%；Second-order weld should be inspected by random samples, inspects ratio by random samples
20%；Three grades of weld seams of complete penetraction and fusion in welding do not carry out Non-Destructive Testing；
3) surface quality inspection:
The specific requirement that surface quality checks is as follows:
A, the reinforcement of detection butt welding of steel tube seam are 2-5mm, and polish with sander；
B, steel pipe seam are even with steel pipe mother metal surface along excessive, the foot welding height uniformity of same weld seam；
C, the undercut of steel pipe seam are less than 1mm less than 0.5mm, the undercut of secondary stress weld seam；
D, butt welding of steel tube seam flushes with the polishing of steel pipe mother metal surface；
4) stretch and impact inspection:
Use Universal hydraulic testing machine that steel pipe carries out tension test, detect yield strength, breakdown strength, percentage elongation；Use punching
Hit testing machine and steel pipe is carried out the detection of ballistic work.
Quality inspection technique after a kind of steel-pipe welding the most according to claim 1, it is characterised in that described lossless spy
The method that triage is surveyed is one or both in ultrasonic examination, radiographic inspection, magnetic powder inspection and infiltration flaw detection.
Quality inspection technique after a kind of steel-pipe welding the most according to claim 1 and 2, it is characterised in that described one
Planting the quality inspection technique after steel-pipe welding to carry out in indoor, indoor require relative humidity≤80%, wind speed≤10m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610627372.6A CN106290363A (en) | 2016-07-29 | 2016-07-29 | A kind of quality inspection technique after steel-pipe welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610627372.6A CN106290363A (en) | 2016-07-29 | 2016-07-29 | A kind of quality inspection technique after steel-pipe welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106290363A true CN106290363A (en) | 2017-01-04 |
Family
ID=57664304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610627372.6A Pending CN106290363A (en) | 2016-07-29 | 2016-07-29 | A kind of quality inspection technique after steel-pipe welding |
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| Country | Link |
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| CN (1) | CN106290363A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470574A (en) * | 2018-12-18 | 2019-03-15 | 江西众安职业危害评价检测有限公司 | Strength test equipment |
| CN109489731A (en) * | 2018-12-26 | 2019-03-19 | 江苏丰禾机械制造股份有限公司 | A kind of quality detecting method after bellows assembling |
| CN113686670A (en) * | 2021-08-18 | 2021-11-23 | 国网黑龙江省电力有限公司检修公司 | Angle steel welding crack sensitivity test method and device and use method of device |
| CN114382977A (en) * | 2020-10-16 | 2022-04-22 | 上海纳川核能新材料技术有限公司 | Prefabricating method of high-density polyethylene pipe row |
| CN115673593A (en) * | 2022-11-16 | 2023-02-03 | 中国航发常州兰翔机械有限责任公司 | Beryllium bronze guide vane assembly protective atmosphere brazing process and quality inspection method |
-
2016
- 2016-07-29 CN CN201610627372.6A patent/CN106290363A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470574A (en) * | 2018-12-18 | 2019-03-15 | 江西众安职业危害评价检测有限公司 | Strength test equipment |
| CN109489731A (en) * | 2018-12-26 | 2019-03-19 | 江苏丰禾机械制造股份有限公司 | A kind of quality detecting method after bellows assembling |
| CN114382977A (en) * | 2020-10-16 | 2022-04-22 | 上海纳川核能新材料技术有限公司 | Prefabricating method of high-density polyethylene pipe row |
| CN113686670A (en) * | 2021-08-18 | 2021-11-23 | 国网黑龙江省电力有限公司检修公司 | Angle steel welding crack sensitivity test method and device and use method of device |
| CN113686670B (en) * | 2021-08-18 | 2024-04-19 | 国网黑龙江省电力有限公司检修公司 | Angle steel welding crack sensitivity test device and use method thereof |
| CN115673593A (en) * | 2022-11-16 | 2023-02-03 | 中国航发常州兰翔机械有限责任公司 | Beryllium bronze guide vane assembly protective atmosphere brazing process and quality inspection method |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170104 |