CN101126634A - Measuring method of section profile and shape in cold-formed steel figuration process - Google Patents
Measuring method of section profile and shape in cold-formed steel figuration process Download PDFInfo
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- CN101126634A CN101126634A CNA2007100464665A CN200710046466A CN101126634A CN 101126634 A CN101126634 A CN 101126634A CN A2007100464665 A CNA2007100464665 A CN A2007100464665A CN 200710046466 A CN200710046466 A CN 200710046466A CN 101126634 A CN101126634 A CN 101126634A
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Abstract
The utility model provides a measurement method for cross-section contour shape of cold-rolled forming section during forming process in measurement technical field. The utility model is characterized in that the length of a flexible strip with a hole-shaped structure is determined at first, then a keyway and potash soap are arranged on the flexible strip; fast gelatination material is prepared, mixed and filled; the flexible strip is tightly adhered and fixed; he condensed flexible strip is then removed and the cross-section shape is recorded. A transparent plastic sheet with the cross-section shape is spread on a piece of coordinate paper and the location is adjusted well so that the coordinate value of any point of the successive contour line can be read. The utility model can overcome the disadvantages in prior art that on-line measurement is not supported and the workpiece needs to be removed. The utility model is suitable for the shape measurement of on-line cross-section contour of various specifications of roll forming product as a fast, simple, flexible, safe, economic and practical method for measuring cross-section.
Description
Technical field
The present invention relates to a kind of method of field of measuring technique, specifically is the measuring method of a kind of cold-rolled forming section forming process middle section contour shape.
Background technology
The cold roll forming product made from steel mainly comprises welded tube and special pipe etc.Because cold-rolled forming section has from heavy and light, saves metal, energy savings, geometric accuracy advantages of higher, its application is very extensive, can be used as the conveyance conduit of gas, coal slurry, breeze etc., the high-low pressure boiler is with managing, the chemical industry heat interchanger is with managing oil well sleeve pipe, tubular construction girder steel, structural steel rack etc.Along with the high speed development of China's economic construction, cold-rolled forming section will play an important role in industry, agricultural, national defence and daily life.Each cross section profile geomery of welded tube in the cold bending process and shape tube has directly determined the quality of final products, and the geometry deformation situation that therefore detects each shaping passage cross section profile is particularly important with regard to what show.
In the cold bending process, present existing measurement strip cross sectional shape method can be divided into two classes substantially: contact and contactless.For the measuring method of contact, modal have two kinds: a kind of be with aluminum strip by knocking or pressure makes it be fitted in the surface of surveying, again the distortion aluminum strip that takes off is measured, thereby is obtained the geometric shape parameters of product cross section.Another method is mainly used in the geometric configuration of measuring the thick profiled section of welded tube cross section, concrete grammar is at first to determine the certain level datum line, measure the vertical distance of moulding pipe cross section along this datum line by hanging vertical line to datum line, thereby obtain the relative coordinate of each point, obtain cross sectional shape by described point at last.The defective that above contact method mainly exists is that operability is relatively poor.In addition, the deformation resilience of aluminum strip can bring very big error to measurement; Hang the method for vertical line,, be subject to the subjectivity influence, be unfavorable for measuring stability and objectivity owing to need relate to loaded down with trivial details artificial reading and contact judgement.
Find through retrieval prior art, application number is 200510102652.7 patent of invention " large-diameter steel pipe geomery measuring system and measuring method ", this method is contactless measuring method, obtain the coordinate of steel tube section point to the radial distance of the known benchmark circuit orbit of a certain radius by sensor measurement steel pipe series of points, when the sampled point number is abundant, can obtain the cross section profile of steel pipe accurately.This method is fit to the circularity after the pipe welding and the measurement of ovality, seems powerless for the description of the cross sectional shape of the opening steel plate in the forming process.
Summary of the invention
The present invention is directed to the prior art above shortcomings, the measuring method of a kind of cold-rolled forming section forming process middle section contour shape is provided, make its overcome various in the past cross section profile form measuring methods too complicated loaded down with trivial details, do not support shortcomings such as on-line measurement, the on-line continuous that is applicable to the cross sectional shape of all size cold-rolled forming section product is measured, and is a kind of quick, simple, flexible, safe, economic, practical cross sectional shape measuring method.
The present invention is achieved by the following technical solutions, specifically comprises the steps:
1) uses tape measure that the opening degree and the profile arc length of product xsect are measured,, determine to have the length of the flexible strip of cavernous structure then according to measured profile length;
2) opening brushing SOFT SOAP on a keyway and the cross section on the flexible strip in required measurement;
3) in container, add the fast gelation material, add entry according to the deal of fast gelation material simultaneously and mix well;
4) flexible strip with fluting places container and fast gelation material fully to adsorb the back taking-up, and rapidly the flexible strip that takes out upwards is tiled on the batten fast gelation material of mixing well before filling up fast in its groove more simultaneously with notch;
5) hand-held batten will be stained with the flexible strip of fast gelation material after the cross section profile below transmission in the past of needs measurement, take off the flexible strip that is attached on the batten, it is fitted in rapidly on the cross section profile of product external surfaces, and the flexible strip two ends are fixed with simple and easy anchor clamps;
6) Binder Materials in the flexible body is fully condensed after the hardening, it is taken off, and the opening degree value of finely tuning to guarantee relevant position on the flexible strip at the opening degree of measuring before the basis on the transparent sheet plastic is equal with it, notes the cross sectional shape of product this moment simultaneously;
7) at last coordinate paper is fixed on the veneer, adopt the origin calibration method to demarcate the origin position of the cross sectional shape that writes down on the transparent plastic sheet simultaneously, the transparent plastic sheet that will record cross sectional shape is again adjusted the position and is tiled on the coordinate paper, the coordinate figure of arbitrfary point on promptly readable the continuous cross section contour.
Described flexible strip himself possesses certain adsorbability and toughness, must have a large amount of cavernous structures.
Described length with flexible strip of cavernous structure is slightly less than about measured profile length 30mm.
Described keyway is a rectangle keyway, and after having cut keyway, the cross section wall thickness of the generous assurance flexible strip of keyway evenly and the flexible strip wall thickness range remain on 8-12mm.
Described fast gelation material is meant that with inorganic oxide or mineral be a main class Binder Materials of forming.The most frequently used have lime, gypsum, water glass, magnesia and various cement etc.
Described weight according to the fast gelation material adds entry mixes well, and specifically is to add entry according to equal proportion, if want to add the time of quick setting, should reduce the ratio of water.
Described sheet plastic is transparent organic glass force-bearing plate, and this thin plate is mainly used in the continuous cross section profile shape of record.
Described origin calibration method is to determine its central point by the two-end-point that connects cross section contour, and makes the vertical line of this connecting line in central spot, and then the intersection point of vertical line and outline line promptly can be the initial point of being demarcated.
The present invention compares with additive method following advantage and conspicuousness effect: method of the present invention can the continuous cross sectional shape of measurement products; Support on-line measurement, needn't take out sample, security is higher; Because the poroid flexible strip that is adsorbed with a large amount of fast gelation materials does not have resilience, so the error that does not exist resilience to bring after solidifying; Because the plasticity of fast gelation material and flexible strip is strong, can guarantee to be close to the cross section in measuring process, can be good at the true shape of reaction cross-section geometry.
Method of the present invention is very easy flexibly, but the scope of measurement products is extremely extensive, is applicable to the measurement of various welded tubes and shape tube cross sectional shape, has very strong practicality and operability.The present invention expands slightly, also can be used as the method that curve form is measured, and soon curved surface is discrete changes into many xsects, records the shape in each cross section again by this method, thereby simulates whole curved surface.
The present invention can carry out on-line measurement to various welded tubes and the shape tube cross section profile shape that each passage exports in its production run, obtain the continuous curve of each cross sectional shape in the forming process, thereby, the Forming Quality of improving product had important directive significance for the deflection of analyzing and control each moulding passage provides scientific basis.And the present invention is widely applicable, processing ease, safety, and used instrument is simple, and cost is extremely low.
Description of drawings
Fig. 1 is a schematic flow sheet of the present invention
Fig. 2 is for carrying out the synoptic diagram of origin calibration on cross section contour
Embodiment
Below embodiments of the invention are elaborated: present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment
In this specific embodiment, the fast gelation material is a gypsum, and poroid flexible strip is for filtering sponge strip.
The mineral name of gypsum is (CaSO4).Generally " gypsum " is meant gesso CaSO41/2H2O, also is called half-H 2 O calcium sulphate, be by mining site adopt gypsum ore, grind through calcination and to be that powdery forms.Gesso tempers and can be rapidly solidificated into lump, can utilize the characteristic complement filter sponge strip of this rapid condensation and volume microdilatancy to finish the measurement of arbitrary section shape.
In this specific embodiment, needed survey instrument is: steel tape, fast gelation material, SOFT SOAP, plastic containers, flexible strip, batten, simple and easy anchor clamps, transparent plastic sheet, coordinate paper, cutter, drawing pin, marking pen, grafter etc.;
The simple and easy anchor clamps that adopt in this specific embodiment comprise a veneer and a plastic grip, and these simple and easy anchor clamps are specifically designed to before rapidly solidified material condenses, and the two ends of flexible strip are fixed.
Present embodiment is measured at the moulding pipe cross section in the Breakdown passage exit in the φ 325mmERW high-frequency straight seam welded pipe row-roll forming process machine, as shown in Figure 1, implements according to following concrete steps substantially:
1) definite size of filtering sponge strip
Use tape measure that the ERW longitudinal welded pipe is measured in the opening degree and the profile arc length of the pipe xsect in Breakdown passage exit, obtain its value and be respectively 791mm and 1036mm, when considering follow-up measurement again in order to guarantee the sponge cross section profile of surveying of fitting as far as possible, need suitably tension sponge strip, the length that can determine to filter sponge strip thus is about 1000mm, and its width and thickness are taken as 40mm and 30mm respectively.Consider also and will spline thereon, so that width and thickness be must guard against is unsuitable too small;
2) brushing SOFT SOAP and cutting keyway
Can be relatively easy to take off the sponge strip that is condensed by gypsum for the ease of the later stage, need be on measured cross section profile the brushing SOFT SOAP, on the filtration sponge strip of 1000 * 40 * 30mm, cut out a rectangle keyway simultaneously;
3) modulation calcium plaster
In container, add fast gelation material (gesso), according to the weight of fast gelation material, add entry and mix well simultaneously; Gypsum is dissolved in water behind water, generates dihydrate gypsum then and separate out.Reaction equation is as follows:
Attention: the ratio that gesso and water are in harmonious proportion, on-fixed is constant, difference that can be according to need and different.
Water yield number is to the influence of gypsum character, and is listed as following table 1.
| The water yield is to the influence of gypsum | Water is many | Water is few |
| Hardness | A little less than | By force |
| Water-intake rate | Greatly | Little |
| Density | Little | Greatly |
| Intensity | A little less than | By force |
| Setting time | Long | Short |
4) mixing and filler plaster slurry
The sponge strip of fluting is placed the container that fills calcium plaster, take out after allowing it fully adsorb calcium plaster, and rapidly it upwards is tiled on the batten with notch, the while is filled up calcium plaster more fast in its groove;
5) applying and fixedly sponge strip
Hand-held batten will be stained with the flexible strip of a large amount of fast gelation materials after the cross section profile below transmission in the past of needs measurement, take off the flexible strip that is attached on the batten, it is fitted in rapidly on the cross section profile of product external surfaces, and the flexible strip two ends are fixed with simple and easy anchor clamps;
6) take off the sponge strip that condenses and write down cross sectional shape
Treat that Binder Materials in the flexible body fully condenses after the hardening, it is taken off, and the opening degree value of finely tuning to guarantee relevant position on the flexible strip at the opening degree of measuring before the basis on the transparent sheet plastic is equal with it, notes the cross sectional shape of product this moment simultaneously;
7) demarcate initial point and read the coordinate data of cross section contour
Coordinate paper is fixed on the veneer, demarcate the origin position (as shown in Figure 2) of the cross sectional shape that writes down on the transparent plastic sheet simultaneously, the transparent plastic sheet that will record cross sectional shape is again adjusted the position and is tiled on the coordinate paper, the coordinate figure of arbitrfary point on promptly readable the continuous cross section contour.
The present invention had both overcome contact measurement method poor operability in the past, the shortcoming that error is big, overcome too complicated loaded down with trivial details, cost is high, the scope of application the is little shortcoming of contactless method again, a kind of on-line continuous measuring method that is applicable to each cross section profile shape in any specification cold-rolled forming section forming process is provided, it is a kind of quick, simple, flexible, safe, economic, practical cross sectional shape measuring method, its measuring accuracy can satisfy application of practical project in 1mm.
Claims (8)
1. the measuring method of a cold-rolled forming section forming process middle section contour shape is characterized in that, comprises following steps:
1) uses tape measure that the opening degree and the profile arc length of product xsect are measured,, determine to have the length of the flexible strip of cavernous structure then according to measured profile length;
2) opening brushing SOFT SOAP on a keyway and the cross section on the flexible strip in required measurement;
3) in container, add the fast gelation material, add entry according to the weight of fast gelation material simultaneously and mix well;
4) flexible strip with fluting places container and fast gelation material fully to adsorb the back taking-up, and rapidly the flexible strip that takes out upwards is tiled on the batten fast gelation material of mixing well before filling up fast in its groove more simultaneously with notch;
5) hand-held batten will be stained with the flexible strip of a large amount of fast gelation materials after the cross section profile below transmission in the past of needs measurement, take off the flexible strip that is attached on the batten, it is fitted in rapidly on the cross section profile of product external surfaces, and the flexible strip two ends are fixed with simple and easy anchor clamps;
6) Binder Materials in the flexible body is fully condensed after the hardening, it is taken off, and the opening degree value of finely tuning to guarantee relevant position on the flexible strip at the opening degree of measuring before the basis on the transparent sheet plastic is equal with it, notes the cross sectional shape of product this moment simultaneously;
7) at last coordinate paper is fixed on the veneer, adopt the origin calibration method to demarcate the origin position of the cross sectional shape that writes down on the transparent plastic sheet simultaneously, the transparent plastic sheet that will record cross sectional shape is again adjusted the position and is tiled on the coordinate paper, can read the coordinate figure of arbitrfary point on the cross section contour continuously.
2. the measuring method of cold-rolled forming section forming process as claimed in claim 1 middle section contour shape is characterized in that, the length of described flexible strip with cavernous structure is less than measured profile length 30mm.
3. the measuring method of cold-rolled forming section forming process as claimed in claim 1 middle section contour shape, it is characterized in that, described keyway is a rectangle keyway, and after having cut keyway, the cross section wall thickness of the generous assurance flexible strip of keyway evenly and the flexible strip wall thickness range remain on 8-12mm.
4. the measuring method of cold-rolled forming section forming process as claimed in claim 1 middle section contour shape is characterized in that, described fast gelation material is meant that with inorganic oxide or mineral be a main class Binder Materials of forming.
5. the measuring method of cold-rolled forming section forming process as claimed in claim 1 middle section contour shape is characterized in that described weight according to the fast gelation material adds entry mixes well, and specifically is to add entry according to equal proportion.
6. the measuring method of cold-rolled forming section forming process as claimed in claim 1 middle section contour shape is characterized in that described simple and easy anchor clamps comprise a veneer and a plastic grip, are used for before rapidly solidified material condenses, and the two ends of flexible strip are fixed.
7. the measuring method of cold-rolled forming section forming process as claimed in claim 1 middle section contour shape is characterized in that described sheet plastic is transparent organic glass force-bearing plate, is used to write down continuous cross section profile shape.
8. the measuring method of cold-rolled forming section forming process as claimed in claim 1 middle section contour shape, it is characterized in that, described origin calibration method is to determine its central point by the two-end-point that connects cross section contour, and make the vertical line of this connecting line in central spot, then the intersection point of vertical line and outline line is the initial point of being demarcated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100464665A CN100491911C (en) | 2007-09-27 | 2007-09-27 | Measuring method of section profile and shape in cold-formed steel figuration process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100464665A CN100491911C (en) | 2007-09-27 | 2007-09-27 | Measuring method of section profile and shape in cold-formed steel figuration process |
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| CN101126634A true CN101126634A (en) | 2008-02-20 |
| CN100491911C CN100491911C (en) | 2009-05-27 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102419158A (en) * | 2010-09-27 | 2012-04-18 | 新奥科技发展有限公司 | Method for acquiring shape of combustion space area in underground coal gasification model test furnace |
| CN102865845A (en) * | 2012-09-12 | 2013-01-09 | 沈阳飞机工业（集团）有限公司 | Method for obtaining cross sectional shape of curved surface of skin |
| CN103954231A (en) * | 2014-03-28 | 2014-07-30 | 电子科技大学 | Non-contact measuring method for deformed plate and strip cross section profile in cold roll forming process |
| CN105363833A (en) * | 2015-12-02 | 2016-03-02 | 中国石油集团渤海石油装备制造有限公司 | Online detecting method for pre-bending process of straight seam steel pipe |
| CN105865373A (en) * | 2016-03-24 | 2016-08-17 | 洛阳Lyc轴承有限公司 | Method for detecting shape of gear ring of extra-large bearing |
| CN108801203A (en) * | 2018-07-24 | 2018-11-13 | 佛山市高明曦逻科技有限公司 | A kind of sample collection method of farmland dry soil roughness measurement |
| CN108801202A (en) * | 2018-07-24 | 2018-11-13 | 佛山市高明曦逻科技有限公司 | A kind of sample collection method of soil surface local roughness detection |
| CN114061524A (en) * | 2021-10-15 | 2022-02-18 | 首钢集团有限公司 | Steel coil profile measuring method and device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4642902A (en) * | 1984-06-26 | 1987-02-17 | Siemens Aktiengesellschaft | Apparatus for determining the deviations from a circular form in a dynamically balanced part |
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- 2007-09-27 CN CNB2007100464665A patent/CN100491911C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102419158A (en) * | 2010-09-27 | 2012-04-18 | 新奥科技发展有限公司 | Method for acquiring shape of combustion space area in underground coal gasification model test furnace |
| CN102419158B (en) * | 2010-09-27 | 2013-10-30 | 新奥科技发展有限公司 | Method for acquiring shape of combustion space area in underground coal gasification model test furnace |
| CN102865845A (en) * | 2012-09-12 | 2013-01-09 | 沈阳飞机工业（集团）有限公司 | Method for obtaining cross sectional shape of curved surface of skin |
| CN102865845B (en) * | 2012-09-12 | 2016-01-20 | 沈阳飞机工业（集团）有限公司 | A kind of acquisition methods of Skinning Surfaces cross sectional shape |
| CN103954231A (en) * | 2014-03-28 | 2014-07-30 | 电子科技大学 | Non-contact measuring method for deformed plate and strip cross section profile in cold roll forming process |
| CN103954231B (en) * | 2014-03-28 | 2016-08-17 | 电子科技大学 | The contactless measurement of Deformation in Cold-Bend Forming strip cross-sectional profiles |
| CN105363833A (en) * | 2015-12-02 | 2016-03-02 | 中国石油集团渤海石油装备制造有限公司 | Online detecting method for pre-bending process of straight seam steel pipe |
| CN105865373A (en) * | 2016-03-24 | 2016-08-17 | 洛阳Lyc轴承有限公司 | Method for detecting shape of gear ring of extra-large bearing |
| CN108801203A (en) * | 2018-07-24 | 2018-11-13 | 佛山市高明曦逻科技有限公司 | A kind of sample collection method of farmland dry soil roughness measurement |
| CN108801202A (en) * | 2018-07-24 | 2018-11-13 | 佛山市高明曦逻科技有限公司 | A kind of sample collection method of soil surface local roughness detection |
| CN114061524A (en) * | 2021-10-15 | 2022-02-18 | 首钢集团有限公司 | Steel coil profile measuring method and device |
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| CN100491911C (en) | 2009-05-27 |
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