CN107478511A - There is the welding quality detection method of the clod wash wedge angle steel pipe of wedge angle weld seam with batch - Google Patents

There is the welding quality detection method of the clod wash wedge angle steel pipe of wedge angle weld seam with batch Download PDF

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Publication number
CN107478511A
CN107478511A CN201710642321.5A CN201710642321A CN107478511A CN 107478511 A CN107478511 A CN 107478511A CN 201710642321 A CN201710642321 A CN 201710642321A CN 107478511 A CN107478511 A CN 107478511A
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CN
China
Prior art keywords
wedge angle
clod wash
steel pipe
angle steel
weld seam
Prior art date
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Pending
Application number
CN201710642321.5A
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Chinese (zh)
Inventor
朱成松
阮建刚
张尧
朱少文
盛珍剑
雷浩
陶文哲
段军科
魏鹏
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Wuhan Iron and Steel Group Corp
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Wuhan Jiangbei Group Co Ltd
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Publication date
Application filed by Wuhan Jiangbei Group Co Ltd filed Critical Wuhan Jiangbei Group Co Ltd
Priority to CN201710642321.5A priority Critical patent/CN107478511A/en
Publication of CN107478511A publication Critical patent/CN107478511A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/28Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00Investigating resistance of materials to the weather, to corrosion, or to light
    • G01N17/006Investigating resistance of materials to the weather, to corrosion, or to light of metals
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces

Abstract

There is the welding quality detection method of the clod wash wedge angle steel pipe of wedge angle weld seam the invention discloses a kind of same batch, this method first chooses the multiple clod wash wedge angle steel pipes with wedge angle weld seam of same batch;Above-mentioned clod wash wedge angle steel pipe is diagonally flattened along wedge angle respectively again;Whether qualified judged again using acidleach low power macroscopic examination welded seam area;Again from just sentence in unqualified clod wash wedge angle steel pipe choose more than 2 clod wash wedge angle steel pipes prepare tensile test specimen, auxiliary member is welded in one end of each tensile test specimen, the tensile test specimen for being welded with auxiliary member is subjected to tension test, so as to judge whether the welding quality of the batch is qualified.The present invention can carry out quality testing to the weld seam of the clod wash wedge angle steel pipe with wedge angle weld seam, and testing result is accurate.

Description

There is the welding quality detection method of the clod wash wedge angle steel pipe of wedge angle weld seam with batch
Technical field
The invention belongs to Welding quality test field, and in particular to a kind of same batch has the clod wash wedge angle steel of wedge angle weld seam The welding quality detection method of pipe.
Background technology
Fig. 1 is the schematic diagram of the clod wash wedge angle steel pipe with wedge angle weld seam, wherein, 1 is the clod wash point with wedge angle weld seam Angle steel pipe, 3, weld seam.Fig. 2 is the structural representation of common clod wash square steel tube, wherein, 2, common clod wash side rectangle steel Pipe, 3, weld seam.Because of the particularity of shape of product and position while welding, the detection of clod wash wedge angle steel pipe seam quality is common without the image of Buddha Clod wash square steel tube directly carries out stretching detection to the welding quality of weld metal zone like that, thus can not more have to same batch The welding quality of the clod wash wedge angle steel pipe of wedge angle weld seam is judged.When use Non-Destructive Testing mode is to clod wash wedge angle steel pipe seam Carry out quality testing when, its depth can only achieve wall thickness 13, face of weld quality can only be detected, can not be to the tool of same batch The weldquality for having the clod wash square steel tube of wedge angle weld seam is completely detected, and testing result is inaccurate.Inspection is damaged when using When survey mode carries out quality testing to the weldquality of the clod wash square steel tube with wedge angle weld seam of same batch, due to existing The problems such as commissure stress concentration, right-angle side first deform, cause result of the test inaccuracy, feasibility not high.Therefore, we are urgent Need a kind of method that can be detected to the welding quality of the clod wash wedge angle steel pipe with wedge angle weld seam of same batch.
The content of the invention
It is an object of the invention to provide a kind of clod wash wedge angle Pipe Welding Quality detection method, the detection method can be to tool The weld seam for having the clod wash wedge angle tube product of wedge angle weld seam carries out quality testing, and testing result is accurate.
The technical solution adopted in the present invention is:
A kind of same batch has the welding quality detection method of the clod wash wedge angle steel pipe of wedge angle weld seam, and it comprises the following steps:
Step 1: choose with the multiple clod wash wedge angle steel pipes with wedge angle weld seam of batch;
Step 2: diagonally being flattened along wedge angle to above-mentioned clod wash wedge angle steel pipe respectively, it is H to flatten height;
Step 3: the welded seam area of the clod wash wedge angle steel pipe using the macroscopic examination of acidleach low power after diagonal flatten, if clod wash is sharp The cracking direction of angle steel pipe is non-bead direction, i.e., is ftractureed to mother metal direction, then the clod wash wedge angle steel pipe is qualified;If clod wash wedge angle The cracking direction of steel pipe is ftractureed for bead direction, then it is unqualified just to sentence the clod wash wedge angle steel pipe;
Step 4: prepare tensile test specimen from more than 2 clod wash wedge angle steel pipes of selection in unqualified clod wash wedge angle steel pipe are just sentenced(It is each Individual clod wash wedge angle steel pipe prepares a tensile test specimen), and each tensile test specimen is respectively provided with wedge angle weld seam;
Step 5: welding auxiliary member in one end of each tensile test specimen, the tensile test specimen for being welded with auxiliary member is subjected to stretching examination Test, if multiple tensile test specimens are qualified, the welding quality of the clod wash wedge angle steel pipe of the batch is qualified;Otherwise, the batch The welding quality of clod wash wedge angle steel pipe is unqualified.
By such scheme, the flattening height H=L*1/3, L are the outer diagonal line length of clod wash wedge angle steel pipe.According to limited The method of member simulation show that the stress of commissure has reached mother when wedge angle steel pipe depresses to outer cornerwise 1/3 height The minimum ultimate tension of material, if now weld seam does not ftracture, prove that the tensile strength of commissure has reached mother metal Minimum requirements, it may be determined that weldquality is qualified.Therefore height will be flattened and be defined as cornerwise 1/3 height, can accurate judgement Weldquality.
By such scheme, tension test is carried out according to GB/T228, clamping face is tensile test specimen width, and folder up and down Hold place it is wide, weld seam tensile strength is not less than strength of parent.
The beneficial effects of the present invention are:
The present invention is combined mode with tension test using flattening test and detected, not only more scientific, and more adds It is kind, when progress flattening test not can determine that weldquality, complementary testing is carried out using weld seam drawing process, can be with accurate judgement There is the welding quality of the clod wash wedge angle steel pipe of wedge angle weld seam with batch;
The flattening test of the present invention can have one with welding quality and intuitively detect;Judgement is set to become quick, accurate;
The present invention solves and the clod wash wedge angle steel pipe progress tension test with wedge angle weld seam can not be judged into asking for weldquality Topic, improve the accuracy of judgement;
This method is simple, easy, has promotional value.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of the clod wash wedge angle steel pipe with wedge angle weld seam;
Fig. 2 is the structural representation of common clod wash square steel tube;
Fig. 3 is diagonal flattening test schematic diagram;
Fig. 4 is the connection diagram of tensile test specimen and auxiliary member;
Wherein:1st, there is the clod wash wedge angle steel pipe of wedge angle weld seam, 2, common clod wash square steel tube, 3, weld seam, 5, stretching examination Part, 6, auxiliary member, 7, welding merging point, H1, tensile test specimen thickness;L1, tensile test specimen side length(Product can be extended or be cut Cut);H2, auxiliary member thickness;L2, auxiliary member side length.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not For limiting the present invention.
A kind of same batch has the welding quality detection method of the clod wash wedge angle steel pipe of wedge angle weld seam, and it includes following step Suddenly:
Step 1: choose with the multiple clod wash wedge angle steel pipes with wedge angle weld seam of batch;
Step 2: referring to Fig. 3, above-mentioned clod wash wedge angle steel pipe is diagonally flattened along wedge angle respectively, i.e., pressed with weld seam in 0 degree of direction Flat, it is H to flatten height;The flattening height H=L*1/3, L are the outer diagonal line length of clod wash wedge angle steel pipe;
Step 3: the welded seam area of the clod wash wedge angle steel pipe using the macroscopic examination of acidleach low power after diagonal flatten;If clod wash is sharp The cracking direction of angle steel pipe is non-bead direction, i.e., is ftractureed to mother metal direction, and cracking is on the tube wall of clod wash wedge angle steel pipe, then The clod wash wedge angle steel pipe is qualified;If the cracking direction of clod wash wedge angle steel pipe is bead direction, i.e., cracking is in commissure, then just sentences The clod wash wedge angle steel pipe is unqualified;
Step 4: tensile test specimen 5 is prepared from 2 clod wash wedge angle steel pipes of selection in unqualified clod wash wedge angle steel pipe are just sentenced, and each Tensile test specimen 5 is respectively provided with wedge angle weld seam, i.e., each unqualified clod wash wedge angle steel pipe prepares a tensile test specimen 5);
Step 5: referring to Fig. 4, auxiliary member 6 is welded in one end of each tensile test specimen 5(The weld seam of tensile test specimen 5 and auxiliary member 6 Should be sufficiently tight, to ensure that tension test is smoothed out, and heat input is reduced during welding as far as possible, wedge angle weld seam is caused with reducing Influence, if in drawing process, the weld seam of tensile test specimen 5 and auxiliary member 6 disconnects, then is considered as sample preparation failure, can sample preparation again.), The tensile test specimen 5 for being welded with auxiliary member 6 is subjected to tension test according to GB/T228, clamping face is the width of tensile test specimen 5, And holding position is wide up and down, the weld seam tensile strength for the welding merging point that auxiliary member 6 is formed with tensile test specimen 5 is not less than mother metal (Clod wash wedge angle steel pipe)Intensity;If 2 tensile test specimens 5 are qualified, the welding quality of the clod wash wedge angle steel pipe of the batch is closed Lattice;Otherwise, the welding quality of the clod wash wedge angle steel pipe of the batch is unqualified.
The present invention has scientific, practicality, it is ensured that the reliability of welding quality inspection, thoroughly solves and has before this The problem of weldquality for having the clod wash wedge angle steel pipe of wedge angle weld seam can not detect or detect inaccuracy so that weld and close in production Lattice rate is improved, and reduce in the clod wash wedge angle steel pipe's production with wedge angle weld seam causes because Welding quality test is inaccurate Loss due to spoiled work, can directly create yuan/year of benefit more than 90 ten thousand.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted, And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.

Claims (2)

1. a kind of same batch has the welding quality detection method of the clod wash wedge angle steel pipe of wedge angle weld seam, it is characterised in that including such as Lower step:
Step 1: choose with the multiple clod wash wedge angle steel pipes with wedge angle weld seam of batch;
Step 2: diagonally being flattened along wedge angle to above-mentioned clod wash wedge angle steel pipe respectively, it is H to flatten height;
Step 3: the welded seam area of the clod wash wedge angle steel pipe using the macroscopic examination of acidleach low power after diagonal flatten, if clod wash is sharp The cracking direction of angle steel pipe is non-bead direction, i.e., is ftractureed to mother metal direction, then the clod wash wedge angle steel pipe is qualified;If clod wash wedge angle The cracking direction of steel pipe is ftractureed for bead direction, then it is unqualified just to sentence the clod wash wedge angle steel pipe;
Step 4: tensile test specimen is prepared from more than 2 clod wash wedge angle steel pipes of selection in unqualified clod wash wedge angle steel pipe are just sentenced, it is described Tensile test specimen is respectively provided with wedge angle weld seam;
Step 5: welding auxiliary member in one end of each tensile test specimen, the tensile test specimen for being welded with auxiliary member is subjected to stretching examination Test, if multiple tensile test specimens are qualified, the welding quality of the clod wash wedge angle steel pipe of the batch is qualified;Otherwise, the batch The welding quality of clod wash wedge angle steel pipe is unqualified.
2. same batch according to claim 1 has the welding quality detection method of the clod wash wedge angle steel pipe of wedge angle weld seam, It is characterized in that:The flattening height H=L*1/3, L are the outer diagonal line length of clod wash wedge angle steel pipe.
CN201710642321.5A 2017-07-31 2017-07-31 There is the welding quality detection method of the clod wash wedge angle steel pipe of wedge angle weld seam with batch Pending CN107478511A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101032783A (en) * 2007-04-16 2007-09-12 束润涛 Explosion welding technique of composite steel pipes of stainless steel and carbon steel
CN104251348A (en) * 2013-06-26 2014-12-31 天津江海冷弯型钢有限公司 Sharp-angle rectangular steel pipe
CN206235516U (en) * 2016-10-28 2017-06-09 武汉钢铁江北集团有限公司 A kind of online flattening test device of wedge angle steel pipe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101032783A (en) * 2007-04-16 2007-09-12 束润涛 Explosion welding technique of composite steel pipes of stainless steel and carbon steel
CN104251348A (en) * 2013-06-26 2014-12-31 天津江海冷弯型钢有限公司 Sharp-angle rectangular steel pipe
CN206235516U (en) * 2016-10-28 2017-06-09 武汉钢铁江北集团有限公司 A kind of online flattening test device of wedge angle steel pipe

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
赵怡: "《中国石油化工科技信息指南 2003年 上》", 28 February 2003 *
那宝魁: "《解读质量管理》", 31 August 2006 *
龙伟民: "《焊接工程质量评定方法及检测技术》", 31 October 2015 *

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Applicant after: Wuhan Iron & Steel Group Co., Ltd.

Address before: 430415 Binjiang Avenue 1, Yangluo Development Zone, Wuhan, Hubei.

Applicant before: Wuhan Jiangbei Group Co., Ltd.

Effective date of registration: 20180625

Address after: 430415 Binjiang Road 1, Yangluo Economic Development Zone, Wuhan, Hubei

Applicant after: Wuhan Iron & Steel Group Co., Ltd.

Address before: 430415 Binjiang Avenue 1, Yangluo Development Zone, Wuhan, Hubei.

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