CN101514967A - Pipe workpiece detection method - Google Patents
Pipe workpiece detection method Download PDFInfo
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- CN101514967A CN101514967A CNA2008101366804A CN200810136680A CN101514967A CN 101514967 A CN101514967 A CN 101514967A CN A2008101366804 A CNA2008101366804 A CN A2008101366804A CN 200810136680 A CN200810136680 A CN 200810136680A CN 101514967 A CN101514967 A CN 101514967A
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- tube material
- short tube
- pipe workpiece
- cracking
- short pipe
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Abstract
The invention relates to a pipe workpiece detection method. The invention adopts a proposal that the pipe workpiece detection method comprises two steps: step one, sawing a section of short pipe workpiece from a pipe workpiece formed by rolling or pulling for detection first and then putting the short pipe workpiece into a machine tool for pipe end expansion, and taking off the short pipe workpiece after finishing the pipe end expansion to visually check whether the short pipe workpiece has phenomena of cracking and scaling, wherein the short pipe workpiece having the phenomena of cracking and scaling is a defective product; and step two, performing the following redetections on the short pipe workpiece without cracking and scaling after the detection in the step one: removing oil stains and copper scales on the surface of the short pipe workpiece first, then spraying a colored penetrant on the surface of the expanded end of the short pipe workpiece, spraying a developer on the surface of the expanded end of the short pipe workpiece, and visually checking whether the short pipe workpiece has spot seepage, wherein the short pipe workpiece having a seeped spot is a defective product. The method has the advantage that the pipe workpiece after the detection by the method can reach higher acceptance rate.
Description
Technical field
The present invention relates to a kind of pipe workpiece detection method, particularly a kind of method that hard state tube material rolling or the drawing moulding is carried out quality testing.
Background technology
After tubing is rolled or draws, inherent vices such as interlayer, folder ash can be caused,, the quality of product can be influenced, so a kind of pipe workpiece detection method need be arranged if there is the pipe material of interlayer or folder ash to continue to put into production because of extruding.The pipe workpiece detection method of prior art, tubing carries out the enlarging operation and detects, visual short tube material has or not crack initiation, skin effect phenomenon after the enlarging, it is defective products that the short tube material of cracking or peeling is arranged, if only adopting some tiny crackings of visual method or peeling can't observe out, if these tubing continue to put into production, can influence product quality.
Summary of the invention
At the problems referred to above, the object of the present invention is to provide a kind of can detect tubing after enlarging tiny cracking or the method for peeling.
In order to reach above purpose, the scheme that the present invention adopts is: a kind of pipe workpiece detection method, this method divide two steps to carry out:
The first step at first from rolling or draw one section short tube material that is used to detect of sawing on the tubing of moulding, put this short tube material into and is carried out enlarging on the lathe, and the bore of this enlarging is according to the quality requirements design of tubing to be measured;
Take off the short tube material of finishing the enlarging operation, visual examination short tube material has or not cracking, skin effect phenomenon, and it is defective products that the short tube material of cracking or peeling is arranged, and promptly the tubing at this original place of short tube material is defective products;
In second step, will detect the back through above-mentioned steps does not have the short tube material of cracking, peeling to carry out following detection again:
At first, remove the greasy dirt and the copper scale on short tube material surface, the flared surfaces at the short tube material sprays coloured bleeding agent then, makes this bleeding agent be penetrated in the slit of crannied short tube material, after bleeding agent penetrates into the slit fully, utilize clean-out system to remove the bleeding agent of short tube material flared surfaces;
Spray developer on the flared surfaces of short tube material again, visual examination has immaculate to ooze out, and it is defective products that the short tube material that oozes out spot is arranged, and promptly the tubing at this original place of short tube material is defective products.
In above-mentioned technical scheme, the preferred length of described short tube material is 5～8cm.
In second step of above-mentioned detection method, remove in the method that greasy dirt and copper scale adopted on short tube material surface, preferable methods is: at first use cloth to wipe with except that the greasy dirt and the copper scale on short tube material surface, then the short tube material being put into acid solution flooded 20～30 minutes, then the short tube material is washed, at last the short tube material is dried.Preferably, described acid solution is made of the composition of following mass percent: 15%～25% sulfuric acid, 0.5%～1% nitric acid, 0.5%～1% hydrogen peroxide, all the other are water.
Because the present invention has adopted above technical scheme, its advantage is: by the detection of two steps, not only can will there be the short tube material of open defect to choose after the enlarging, and through second test that goes on foot, some cracking slits relatively minute defects tubing also can be found, thereby make the tubing that detects through this method can reach higher acceptance rate.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
A kind of pipe workpiece detection method, this method divide two steps to carry out:
The first step at first from rolling or many long tube materials the drawing moulding short tube material of sawing one segment length 5～8cm respectively, will be carried out label by the former long tube material and the short tube material of sawing, and guarantee to belong to originally the label unanimity of same tubing.
The short tube material that above-mentioned sawing is got off is put into respectively and is carried out enlarging on the lathe, the bore of enlarging is according to the quality requirements design of tubing to be measured, because the short tube material ftractureed and peeling easily when the enlarging bore was big, so when the quality requirements of tubing to be measured is higher, strengthen the bore of enlarging, when the quality requirements of tubing to be measured hangs down, reduce the bore of enlarging.Concrete flared method and step can be with reference to GB/T 242-2007.
Take off the short tube material of finishing the enlarging operation, visual examination short tube material has or not cracking, skin effect phenomenon, and it is defective products that the short tube material of cracking or peeling is arranged, and promptly the tubing at this original place of short tube material is defective products.
In second step, will carry out following detection again through the short tube material that does not have cracking, peeling after the above-mentioned range estimation:
At first, use cloth to wipe with and remove the greasy dirt and the copper scale on short tube material surface, then the short tube material being put into acid solution floods, this acid solution is made of the composition of following mass percent: 15%～25% sulfuric acid, 0.5%～1% nitric acid, 0.5%～1% hydrogen peroxide, all the other are water, flood and take out the short tube material after 20～30 minutes, then the short tube material is washed, remove the acid solution on short tube material surface, at last the short tube material is dried, so just removed the greasy dirt and the copper scale on short tube material surface completely.
Secondly, spray red bleeding agent in the flared surfaces of removing the short tube material of degreasing and copper scale, if on the flared surfaces of short tube material the slit is arranged, then should be penetrated in the crack by the redness bleeding agent, after red bleeding agent penetrates into the slit fully, utilize clean-out system to remove the bleeding agent of short tube material flared surfaces.
Spray developer on the flared surfaces of short tube material again, visual examination has or not punctation to ooze out, and it is defective products that the short tube material that oozes out spot is arranged, and promptly the tubing at this original place of short tube material is defective products.
More than be the whole testing process of this method, at first one section short tube material of sawing carries out enlarging from the tubing, range estimation has or not cracking or peeling after the enlarging, it is defective products that the short tube material of cracking or peeling is arranged, there is not the tubing of cracking or peeling to put into acid solution removal greasy dirt and copper scale, spray red bleeding agent in the flared surfaces of removing the short tube material of degreasing and copper scale, then on the flared surfaces of short tube material, spray developer again, it is defective products that the short tube material that oozes out spot is arranged, by above detection step, can effectively detect the bad tubing of quality.
Claims (4)
1, a kind of pipe workpiece detection method is characterized in that: this method divides two steps to carry out:
The first step at first from rolling or draw one section short tube material that is used to detect of sawing on the tubing of moulding, put this short tube material into and is carried out enlarging on the lathe, and the bore of this enlarging is according to the quality requirements design of tubing to be measured;
Take off the short tube material of finishing the enlarging operation, visual examination short tube material has or not cracking, skin effect phenomenon, and it is defective products that the short tube material of cracking or peeling is arranged, and promptly the tubing at this original place of short tube material is defective products;
In second step, will detect the back through above-mentioned steps does not have the short tube material of cracking, peeling to carry out following detection again:
At first, remove the greasy dirt and the copper scale on short tube material surface, the flared surfaces at the short tube material sprays coloured bleeding agent then, makes this bleeding agent be penetrated in the slit of crannied short tube material, after bleeding agent penetrates into the slit fully, utilize clean-out system to remove the bleeding agent of short tube material flared surfaces;
Spray developer on the flared surfaces of short tube material again, visual examination has immaculate to ooze out, and it is defective products that the short tube material that oozes out spot is arranged, and promptly the tubing at this original place of short tube material is defective products.
2, pipe workpiece detection method according to claim 1 is characterized in that: the length of described short tube material is 5～8cm.
3, pipe workpiece detection method according to claim 1, it is characterized in that: in second step, the method that greasy dirt and copper scale adopted of removing short tube material surface is: at first use cloth to wipe with except that the greasy dirt and the copper scale on short tube material surface, then the short tube material being put into acid solution flooded 20～30 minutes, then the short tube material is washed, at last the short tube material is dried.
4, pipe workpiece detection method according to claim 3 is characterized in that: described acid solution is made of the composition of following mass percent: 15%～25% sulfuric acid, 0.5%～1% nitric acid, 0.5%～1% hydrogen peroxide, all the other are water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101366804A CN101514967A (en) | 2008-12-31 | 2008-12-31 | Pipe workpiece detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101366804A CN101514967A (en) | 2008-12-31 | 2008-12-31 | Pipe workpiece detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101514967A true CN101514967A (en) | 2009-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101366804A Pending CN101514967A (en) | 2008-12-31 | 2008-12-31 | Pipe workpiece detection method |
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| CN (1) | CN101514967A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558228A (en) * | 2013-11-14 | 2014-02-05 | 保定天威集团有限公司 | Leakage detecting agent for detecting leakage of weld joint in welding process and detection method |
| CN105301180A (en) * | 2014-07-25 | 2016-02-03 | 珠海格力电器股份有限公司 | Shell material detection method |
| CN105605369A (en) * | 2015-12-19 | 2016-05-25 | 长安大学 | Walking device which can be suitable for internal dye penetrant detection of long and thin pipeline |
| CN110579322A (en) * | 2019-09-24 | 2019-12-17 | 开沃新能源汽车集团有限公司 | method for testing tightness of sanitation vehicle tank body |
| CN111179261A (en) * | 2019-12-31 | 2020-05-19 | 深圳市太赫兹科技创新研究院 | Defect detection method, system, terminal device and storage medium |
| CN112548080A (en) * | 2020-11-23 | 2021-03-26 | 韦登发 | Visual processing method for surface microcracks of casting parts |
| CN113358663A (en) * | 2021-05-12 | 2021-09-07 | 赵寿春 | Wind power blade crack detection device and detection method thereof |
| CN113447354A (en) * | 2021-06-30 | 2021-09-28 | 张家港宏昌钢板有限公司 | Inspection method for surface cracks of hot-rolled strip steel |
-
2008
- 2008-12-31 CN CNA2008101366804A patent/CN101514967A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558228A (en) * | 2013-11-14 | 2014-02-05 | 保定天威集团有限公司 | Leakage detecting agent for detecting leakage of weld joint in welding process and detection method |
| CN105301180A (en) * | 2014-07-25 | 2016-02-03 | 珠海格力电器股份有限公司 | Shell material detection method |
| CN105301180B (en) * | 2014-07-25 | 2017-11-17 | 珠海格力电器股份有限公司 | Shell material detection method |
| CN105605369A (en) * | 2015-12-19 | 2016-05-25 | 长安大学 | Walking device which can be suitable for internal dye penetrant detection of long and thin pipeline |
| CN105605369B (en) * | 2015-12-19 | 2017-08-11 | 长安大学 | One kind is applicable to slender pipeline intrinsic color carrying out flaw detection running gear |
| CN110579322A (en) * | 2019-09-24 | 2019-12-17 | 开沃新能源汽车集团有限公司 | method for testing tightness of sanitation vehicle tank body |
| CN111179261A (en) * | 2019-12-31 | 2020-05-19 | 深圳市太赫兹科技创新研究院 | Defect detection method, system, terminal device and storage medium |
| CN112548080A (en) * | 2020-11-23 | 2021-03-26 | 韦登发 | Visual processing method for surface microcracks of casting parts |
| CN112548080B (en) * | 2020-11-23 | 2021-12-03 | 常熟市唐市纺机有限责任公司 | Visual processing method for surface microcracks of casting parts |
| CN113358663A (en) * | 2021-05-12 | 2021-09-07 | 赵寿春 | Wind power blade crack detection device and detection method thereof |
| CN113447354A (en) * | 2021-06-30 | 2021-09-28 | 张家港宏昌钢板有限公司 | Inspection method for surface cracks of hot-rolled strip steel |
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Open date: 20090826 |