CN202614150U - Sheet evaluation ruler - Google Patents
Sheet evaluation ruler Download PDFInfo
- Publication number
- CN202614150U CN202614150U CN 201220283108 CN201220283108U CN202614150U CN 202614150 U CN202614150 U CN 202614150U CN 201220283108 CN201220283108 CN 201220283108 CN 201220283108 U CN201220283108 U CN 201220283108U CN 202614150 U CN202614150 U CN 202614150U
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- China
- Prior art keywords
- scale
- sheet
- ruler
- thickness
- dovetail groove
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- Expired - Fee Related
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The utility model discloses a sheet evaluation ruler which comprises a base ruler and a scale. A dovetail groove is arranged at the lower end of the base ruler, the scale is of a rectangular platy structure, a dovetail block is arranged at the lower end of the scale and slidably connected with the dovetail groove, and the length direction of the scale is perpendicular to that of the dovetail groove. By the aid of the sheet evaluation ruler, sheet evaluation steps are simplified, and sheet evaluation and gradation are visual. The sheet evaluation ruler is applicable to quality evaluation of single stripy flaw of a steel and nickel pressure-bearing equipment melt butt welding head with the thickness of 2-400mm, a copper and aluminum pressure-bearing equipment melt butt welding head with the thickness of 2-80mm, a titanium pressure-bearing equipment melt butt welding head with the thickness of 2-50mm, a steel, nickel, copper, aluminum and titanium pressure-bearing equipment pipe with the wall thickness larger than or equal to 2mm and a pressure pipeline melting annular butt joint.
Description
Technical field
The utility model relates to a kind of sheet chi of commenting.
Background technology
JB/T4730.2-2005 standard 5.1 is divided into I, II, III, four grades of IV with steel, nickel, copper bearing device molten solder joint ray detection quality grading, and I level quality is the highest, and IV level quality is minimum.For single bar defect maximum length, II level requirement≤T/3 (minimum can be 4mm) and≤20mm, III level requirement≤2T/3 (minimum can be 6mm) and≤30mm.For the personnel that begin to learn or use once in a while the JB/T4730.2-2005 standard; Should consider when commenting sheet that defect length is less than T/3 or 2T/3; Take into account defect length again and be not more than 20mm or 30mm; Also need consider factors such as mother metal thickness, defective spacing simultaneously, therefore often can not accomplish exhaustive.Though at present special equipment trade does not have JB/T4730-2005 standard that the testing staff uses and comments strip slag inclusion hierarchical table is arranged on the sheet chi; But its content is to indiscriminately imitate the JB/T4730.2 standard content basically; Must convert according to seized thickness of workpiece, defect length etc. when the staff comments sheet and could confirm corresponding quality grade, comment sheet work not help too much to actual so have the strip slag inclusion hierarchical table of commenting on the sheet chi now.
The utility model content
The technical matters that the utility model will solve provides a kind of sheet chi of commenting, and the utility model is commented the sheet chi to simplify and commented the sheet job step, makes comment the sheet deciding grade and level to become directly perceived.Be applicable to that thickness is steel, the nickel system bearing device melting jam welding joint of 2～400mm; Thickness is 2～80mm copper, aluminum bearing device melting jam welding joint; Thickness is 2～50mm titanium system bearing device melting jam welding joint, the grade estimation of wall thickness >=2mm steel, nickel, copper, aluminium, titanium system bearing device pipe and the single bar defect of pressure pipeline melting hoop open joint.
The technical scheme that the utility model is taked is: a kind of sheet chi of commenting; Comprise basic chi and scale; The lower end of base chi is provided with dovetail groove, and scale is the rectangular parallelepiped platy structure, and the lower end of scale is provided with dovetails; Dovetails and dovetail groove are slidingly connected, and the length direction of scale is perpendicular to the length direction of dovetail groove.
It is workpiece that the utility model is commented the horizontal ordinate of sheet chi base chi, and unit is mm; Ordinate is the length of single bar defect, and unit is mm; Each scale of ordinate and horizontal ordinate is represented 5mm among Fig. 1; Comment the sheet chi to be provided with two single bar defect quality grade separatrix, leaning on last one is the B line, by under one be the A line.
The trend of A line is: on basic chi, sets a (2,4), b (12,4), c (60,20) and four points of d (400,20), connects a and b, and b and c, c and d form a broken line and are the A line.
The trend of B line is: on basic chi, sets e (2,6), f (9,6), g (45,30) and four points of h (400,30), connects e and f, and f and g, g and h form a broken line and are the B line.
Article two, single bar defect quality grade separatrix will comment the sheet chi to be divided into three zones, and A line and A line are the II level with the lower area; Zone between B line and B line and the A line is the III level; The above zone of B line is the IV level.
It is identical with the scale distribution of basic chi ordinate that scale on the scale distributes, and 0 scale mark of scale and the horizontal ordinate of basic chi are at same horizontal level.
Adopt the beneficial effect that technique scheme produced to be: the utility model is commented the sheet chi to simplify and is commented the sheet job step, makes comment the sheet deciding grade and level to become directly perceived.Be applicable to that thickness is steel, the nickel system bearing device melting jam welding joint of 2～400mm; Thickness is 2～80mm copper, aluminum bearing device melting jam welding joint; Thickness is 2～50mm titanium system bearing device melting jam welding joint, the grade estimation of wall thickness >=2mm steel, nickel, copper, aluminium, titanium system bearing device pipe and the single bar defect of pressure pipeline melting hoop open joint.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation.
Fig. 1 is the structural representation of the utility model;
1 is basic chi, and 2 is scale, and 3 is dovetail groove.
Embodiment
A kind of sheet chi of commenting comprises basic chi 1 and scale 2, and the lower end of basic chi 1 is provided with dovetail groove 3, and scale 2 is the rectangular parallelepiped platy structure, and the lower end of scale 2 is provided with dovetails, and dovetails and dovetail groove 3 are slidingly connected, and the length direction of scale 2 is perpendicular to the length direction of dovetail groove 3.
The utility model only needs in coordinate diagram, to find the corresponding grade zone can directly confirm the quality grade of single bar defect according to single bar defect and workpiece when the evaluation egative film.Be that the weld seam egative film of 17.5mm is evaluated for example to thickness of slab; It is the single bar defect of 7mm that one length is arranged on the egative film; Slide scale; The scale of 17.5mm on the high order end of scale and the basic chi horizontal ordinate is overlapped, and on scale, finding the zone at the corresponding some place of 7mm scale mark is III level zone, so the corresponding quality grade of this bar defect is the III level.
Claims (1)
1. comment the sheet chi for one kind; It is characterized in that: comprise basic chi (1) and scale (2); The lower end of base chi (1) is provided with dovetail groove (3), and scale (2) is the rectangular parallelepiped platy structure, and the lower end of scale (2) is provided with dovetails; Said dovetails and dovetail groove (3) are slidingly connected, and the length direction of scale (2) is perpendicular to the length direction of dovetail groove (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220283108 CN202614150U (en) | 2012-06-15 | 2012-06-15 | Sheet evaluation ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220283108 CN202614150U (en) | 2012-06-15 | 2012-06-15 | Sheet evaluation ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202614150U true CN202614150U (en) | 2012-12-19 |
Family
ID=47347840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220283108 Expired - Fee Related CN202614150U (en) | 2012-06-15 | 2012-06-15 | Sheet evaluation ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202614150U (en) |
-
2012
- 2012-06-15 CN CN 201220283108 patent/CN202614150U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20160615 |