CN102426193A - Method for detecting copper-phosphorus blank block and copper-phosphorus anode and method for manufacturing copper-phosphorus anode - Google Patents
Method for detecting copper-phosphorus blank block and copper-phosphorus anode and method for manufacturing copper-phosphorus anode Download PDFInfo
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- CN102426193A CN102426193A CN2011103575628A CN201110357562A CN102426193A CN 102426193 A CN102426193 A CN 102426193A CN 2011103575628 A CN2011103575628 A CN 2011103575628A CN 201110357562 A CN201110357562 A CN 201110357562A CN 102426193 A CN102426193 A CN 102426193A
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Abstract
The invention provides a method for detecting a copper-phosphorus anode. The method comprises the following steps of: providing the copper-phosphorus anode of which the copper-phosphorus purity is more than 4N; and performing an ultrasonic test on the copper-phosphorus anode, wherein the ultrasonic frequency ranges from 5 to 20 MHz. The invention also provides a method for detecting a copper-phosphorus blank block and a method for manufacturing the copper-phosphorus anode. The method for manufacturing the copper-phosphorus anode comprises the following steps of: detecting the copper-phosphorus blank block by using the ultrasonic detection method; and processing the qualified copper-phosphorus blank block to obtain the copper-phosphorus anode. Compared with the radiographic detection method in the prior art, the ultrasonic detection method is more accurate to avoid missed detection of unqualified copper-phosphorus anodes. Moreover, by the method, the detection rate of the copper-phosphorus blank block is improved, and the phenomenon that the unqualified blank blocks which are not detected are further processed to form the copper-phosphorus anodes and the formed copper-phosphorus anodes are determined to be unqualified is avoided.
Description
Technical field
The present invention relates to electronic technology and make the field, relate in particular to the detection method of copper-phosphorus briquet, copper-P anode and the formation method of copper-P anode.
Background technology
In the electronic technology field, for example on the printed circuit board (PCB), the convexity that often has some to be used as solder joint, because copper has higher conductance with respect to aluminium, so the brazing point is widely used in the electron device manufacturing process.Brazing point generally deposits on the circuit board through chemical plating process.In chemical plating process, what the anode material use was more is copper-phosphorus alloy, and copper-phosphorus alloy can be considered to mix the copper of phosphorus.Being mixed with of phosphorus helps produce black oxidation film at anode surface.This film has three functions: (1), this film can be caught impurity and as filtrate; (2), this film can regulate the rate of dissolution of copper, and owing to make the content of copper in solution remain on certain and desirable level; (3), can promote the grain refinement of the copper of deposit through mixing phosphorus.
Generally; Making to copper-P anode comprises: copper-phosphorus briquet is provided, to this briquet according to target the shape of anode carry out blanking, afterwards the copper after the blanking-phosphorus briquet is carried out repeatedly machining; Particularly; Plastic yield such as process forges, calendering, thermal treatment adjustment internal organizational structure satisfies the copper anode requirement.Reach the copper anode dimensional requirement through machining then, promptly obtain the target anode.
Before copper-phosphorus briquet carried out blanking; Need carry out quality testing to this briquet; The general film radiography that adopts in the prior art, radiography is meant with X ray or gamma-rays and penetrates test specimen, with the lossless detection method of film as the equipment of recorded information; This method is the most basic, most widely used a kind of nondestructive test method.
The radiographic examination (complete) ratio juris is: ray can penetrate the material that naked eyes can't penetrate and make light reaching the film; When X ray or radiation gamma film; The same with ordinary ray, can make the silver halide in the film emulsion layer produce latent image, because the material of different densities is different to the absorption coefficient of ray; Shine film ray energy everywhere and also will produce difference, the egative film after just can handling according to darkroom density difference is everywhere differentiated defective.
After above-mentioned detection is qualified, carry out making to copper-P anode.
After copper-P anode is made and finished, need this anode finished product is carried out one-time detection again.In this testing process, the underproof copper of quality-P anode is needed to be destroyed.Yet; Inventor of the present invention carefully discovers the testing process and the copper-P anode processing technology of copper-phosphorus briquet; The defective anode of making in once more copper-P anode being detected after finishing at copper-P anode only is not because copper-P anode processing technology causes, also that the detection of copper-phosphorus briquet is not detected underproof briquet is relevant with prior art.
In view of this, be necessary the detection method of copper-phosphorus briquet is improved in fact.
Summary of the invention
One of the object of the invention provides a kind of detection method of new copper-phosphorus briquet, can avoid the omission problem of defective copper-phosphorus briquet.
Another object of the present invention provides a kind of detection method of new copper-P anode, can avoid the omission problem of defective copper-P anode.
A purpose more of the present invention provides a kind of formation method of new copper-P anode, can improve the qualification rate of copper-P anode product.
For realizing above-mentioned purpose, the present invention provides the detection method of a kind of copper-phosphorus briquet, comprising:
Copper-phosphorus briquet is provided, and said copper-phosphorus briquet material is the superelevation fine copper;
Said copper-phosphorus briquet is carried out ultrasound examination, and wherein, said frequency of ultrasonic is 5～20MHz.
Optional, said frequency of ultrasonic is 15MHz.
Optional, it is with ultra-sonic defect detector said copper-phosphorus briquet to be detected that said copper-phosphorus briquet is carried out ultrasound examination.
Optional, said copper-phosphorus briquet is being carried out also comprising before the ultrasound examination: detect with the standard sample of ultra-sonic defect detector to said copper-phosphorus briquet.
Optional, saidly the said copper-standard sample of phosphorus briquet is detected and comprises: the ratio of defects of calculating the standard sample of said copper-phosphorus briquet with ultra-sonic defect detector; The sensitivity of adjustment ultra-sonic defect detector when the ratio of defects of calculating gained exceeds preset range.
Optional, the preset range of the ratio of defects of said standard sample is set at 2.57%～2.77%, and the sensitivity of said ultra-sonic defect detector is 55～60dB.
Optional, said ultrasound examination is to be medium with water.
Optional, said ultra-sonic defect detector comprises the ultrasonic probe that sends ultrasound wave and reception ultrasonic reflections, the degree of depth that said ultrasonic probe stretches in the water is 6～10mm.
Optional, said ultra-sonic defect detector also comprises the filtrator that said ultrasound wave is carried out filtering, the frequency of said filtrator is 15MHz.
Optional, said ultra-sonic defect detector also comprises the Ultrasound Probe Device that the drive ultrasonic probe moves, the distance of said Ultrasound Probe Device and copper-phosphorus briquet end face is 55mm.
Further, the present invention also provides a kind of detection method of copper-P anode, comprising:
Copper-P anode is provided, and said copper-P anode material is the superelevation fine copper;
Said copper-P anode is carried out ultrasound examination, and wherein, said frequency of ultrasonic is 5～20MHz.
Optional, said frequency of ultrasonic is 15MHz.
Optional, it is with ultra-sonic defect detector said copper-P anode to be detected that said copper-P anode is carried out ultrasound examination.
Optional, said copper-P anode is being carried out also comprising before the ultrasound examination: detect with the standard sample of ultra-sonic defect detector to said copper-P anode.
Optional, the said standard sample of said copper-P anode the detection with ultra-sonic defect detector comprises: the ratio of defects of calculating the standard sample of said copper-P anode; The sensitivity of adjustment ultra-sonic defect detector when the ratio of defects of calculating gained exceeds preset range.
Optional, the preset range of the ratio of defects of said standard sample is set at 2.57%～2.77%, and the sensitivity of said ultra-sonic defect detector is 55～60dB.
Optional, said ultrasound examination is to be medium with water.
Optional, said ultra-sonic defect detector comprises the ultrasonic probe that sends ultrasound wave and reception ultrasonic reflections, the degree of depth that said ultrasonic probe stretches in the water is 6～10mm.
Optional, said ultra-sonic defect detector also comprises the filtrator that said ultrasound wave is carried out filtering, the frequency of said filtrator is 15MHz.
Optional, said ultra-sonic defect detector also comprises the Ultrasound Probe Device that the drive ultrasonic probe moves, the distance of said Ultrasound Probe Device and copper-P anode end face is 55mm.
In addition, the present invention also provides a kind of formation method of copper-P anode, comprising:
Utilize the copper-phosphorus briquet detection method of foregoing description that copper-phosphorus briquet is detected;
Qualified copper-phosphorus briquet is processed to form copper-P anode.
Compared with prior art; Technique scheme has the following advantages: copper-phosphorus briquet is carried out ultrasound examination; This detection need not to destroy copper-phosphorus briquet; Through the ultrasonic signal characteristic is analyzed, can obtain the quantification result directly perceived of defective locations, size and the shape evaluation of copper-phosphorus briquet.And the ultrasound examination here has more pin-point accuracy than traditional radiographic examination (complete) method.Thereby can avoid the omission of defective copper-phosphorus briquet, and then the further processing of the defective briquet of avoiding leak picking and just assert underproof situation after causing forming copper-P anode;
Adopt the qualified copper of above-mentioned detection-phosphorus briquet to form copper-P anode, theoretically, can improve the qualification rate of copper-P anode finished product;
Copper-P anode finished product is adopted ultrasound examination; Similar with the ultrasonic detection method of copper-phosphorus briquet; Owing to have than traditional radiographic examination (complete) method to have more pin-point accuracy, can improve the quality of the copper-P anode finished product that dispatches from the factory, make in use; Copper-P anode is evenly to consume, and can produce plating film more uniformly and prolong life-span of anode.
Description of drawings
Fig. 1 is the basic flow sheet of the detection method of embodiment of the present invention copper-phosphorus briquet;
Fig. 2 is the process flow diagram of the detection method of embodiment of the invention copper-phosphorus briquet;
Fig. 3 is the electron scanning figure of standard sample of the copper-phosphorus briquet of the embodiment of the invention;
Fig. 4 is the detection synoptic diagram of the detection method of embodiment of the invention copper-phosphorus briquet;
Fig. 5 is the process flow diagram of the detection method of embodiment of the invention copper-phosphorus briquet.
Embodiment
Said as background technology; Generally be that copper-P anode that making finishes is detected once more in the prior art; Underproof copper-P anode occurring can be considered to caused by copper-P anode processing technology (internal organizational structure can change); Thereby always constantly improve copper-P anode processing technology, to improve the yield of copper-P anode finished product.Inventor of the present invention finds; Defective anode in copper-P anode that making is finished detects once more is not only because copper-P anode processing technology causes, existing detection method is inaccurate and to fail fully to detect underproof briquet also be a major reason to the detection of copper-phosphorus briquet.And then; The inventor proposes to adopt ultrasound wave that copper-phosphorus briquet is detected, and ultrasound examination is that a kind of nondestructive examination detects, and can obtain the result directly perceived such as defective locations, size and shape of copper-phosphorus briquet through the analysis to the ultrasonic signal characteristic; The film radiography that has overcome available technology adopting is very high to volume type defective (pore, slag inclusion, tungsten inclusion, burn, undercut, overlap, pit etc.) recall rate; And to area-type defective (incomplete fusion, crackle etc.), if camera angles is inappropriate, omission easily; And the workpiece of the suitable check of film radiography thinner thickness and workpiece that should not be thicker; Because check thick workpiece to need high-octane ray equipment, and along with the increase of thickness, the problem that its check sensitivity also can descend.
For make above-mentioned purpose of the present invention, feature and advantage can be more obviously understandable, does detailed explanation below in conjunction with the accompanying drawing specific embodiments of the invention.Because the present invention focuses on interpretation principle, therefore, drawing not in scale.
Fig. 1 is the basic flow sheet of the detection method of embodiment of the present invention copper-phosphorus briquet, and said method comprises:
Step S11 provides copper-phosphorus briquet, and said copper-phosphorus briquet material is purity copper-phosphorus alloy of 4N at least; It is 99.99% that 4N represents content.
Step S12 carries out ultrasound examination to said copper-phosphorus briquet, and wherein, said frequency of ultrasonic is 5～20MHz.
The sound wave that frequency is higher than 20000Hz is called " ultrasound wave ", and ultrasound wave has good directionality, and penetration capacity is strong, is easy to obtain concentrated acoustic energy, in characteristics such as water transmission distance.Ultrasound examination is one of lossless detection method, and Non-Destructive Testing is not destroy under the workpiece prerequisite, the general designation of the various technical methods of inspection workpiece gross imperfection or measuring workpieces characteristic.Find through inventor's research and analysis, the briquet of different materials, hyperacoustic penetration capacity is different; Therefore the ultrasonic frequency of corresponding selection is also different, to copper-phosphorus briquet, confirms to select the frequency of ultrasonic scope at 5～20MHz; For example; 5MHz, 10MHz, 15MHz, 20MHz, wherein, preferable with the effect of 15MHz ultrasound examination.
In step S12, can use ultra-sonic defect detector that said copper-phosphorus briquet is detected.Ultra-sonic defect detector is the instrument that the method for utilization ultrasound detection detects; Its principle is: when ultrasound wave is propagated in material to be detected; The acoustic characteristic of material and the variation of interior tissue produce certain influence to hyperacoustic propagation, understand material property and structural change through the detection to ultrasound wave degree of susceptibility and situation.
When practical application; For guaranteeing that ultra-sonic defect detector is operated under the stable status; To before said copper-the phosphorus briquet detects, need elder generation that the standard sample of said copper-phosphorus briquet is carried out ultrasound examination, comprising: the ratio of defects of calculating the standard sample of said copper-phosphorus briquet; The controlled variable of adjustment ultra-sonic defect detector, for example sensitivity when the ratio of defects of calculating gained exceeds preset range.
Because the propagation distance of ultrasound wave in water be far away, so ultrasound examination can be medium with water, to reduce the influence of environmental factor (for example air) to testing result.
Fig. 2 is the process flow diagram of the detection method of embodiment of the invention copper-phosphorus briquet; In the present embodiment; Use ultra-sonic defect detector that the standard sample of copper-phosphorus briquet is detected earlier,, then adjust the controlled variable of ultra-sonic defect detector if detected ratio of defects exceeds preset range; Do not exceed preset range if detect the ratio of defects that obtains, then copper-phosphorus briquet is carried out ultrasound examination.
With reference to figure 2, the detection method of present embodiment copper-phosphorus briquet comprises the steps:
Step S21 provides the standard sample of copper-phosphorus briquet;
Step S22 uses ultra-sonic defect detector that the standard sample of said copper-phosphorus briquet is detected, and wherein, ultrasonic frequency is chosen as 15MHz;
Step S23, the ratio of defects of the standard sample of the detected said copper of calculating ultra-sonic defect detector-phosphorus briquet;
Step S24 judges that whether the said ratio of defects that calculates surpasses preset range, if execution in step S25 then, execution in step S26 then if not;
Step S25, the controlled variable of adjustment ultra-sonic defect detector, then execution in step S22;
Step S26 provides copper-phosphorus briquet;
Step S27 uses ultra-sonic defect detector that copper-phosphorus briquet is detected, and wherein, ultrasonic frequency is chosen as 15MHz;
Step S28, according to the ultrasound examination result, the quality of assessment copper-phosphorus briquet.
Be elaborated below in conjunction with Fig. 3 and 4 pairs of each steps shown in Figure 2.
Step S21 provides the standard sample of copper-phosphorus briquet.Please refer to Fig. 3, it is the synoptic diagram of the standard sample 30 of a kind of copper-phosphorus briquet, and wherein, standard sample 30 has 2 defectives, and wherein first defective 30a (point defect) area is bigger, and the second defective 30b area is less.The standard sample 30 of copper-phosphorus briquet has identical performance with copper-phosphorus briquet.
Step S22 uses ultra-sonic defect detector that the standard sample of copper-phosphorus briquet is detected, and wherein, ultrasonic frequency is chosen as 15MHz.Please refer to Fig. 4, it is the synoptic diagram that the target detection thing is detected with ultra-sonic defect detector.
As shown in Figure 4, target detection thing 40, the standard sample 30 of copper promptly shown in Figure 3-phosphorus briquet is placed in the water.Ultra-sonic defect detector comprises ultrasonic probe 41, Ultrasound Probe Device 42 and control system (not shown).Ultrasonic probe 41 is used to send ultrasound wave and receives ultrasonic reflections, and Ultrasound Probe Device 42 is used to drive ultrasonic probe 41 and moves.The inventor finds that the degree of depth h1 that ultrasonic probe 41 stretches in the water is 6～10mm, and Ultrasound Probe Device 42 is when the distance h 2 of target detection thing 40 end faces is 55mm, and it is clear to form images, and the omission probability is low.
Consider the penetration capacity of ultrasound wave to copper-phosphorus briquet, in the present embodiment, the frequency of operation of ultra-sonic defect detector is chosen as 15MHz.Generally, ultra-sonic defect detector also includes filtrator, is used for ultrasound wave is carried out filtering, disturbs to eliminate outside noise, reaches testing result more accurately.In the present embodiment, be 15MHz to the ultrasonic frequency of selecting, the frequency of filtrator is chosen as 15MHz.
During test; Ultrasound Probe Device 42 is moved in the control system control of ultra-sonic defect detector; To drive moving of ultrasonic probe 41; The ultrasound wave that makes ultrasonic probe 41 send can be propagated on the whole surface of target detection thing 40, and the step-length that ultrasonic probe moves (comprising the distance that horizontal direction and vertical direction move) can be regulated according to the size of target detection thing 40.When ultrasound wave runs into heterogeneous interface (like defective); Acoustic wave segment can be reflected and received by ultrasonic probe 41; The control system of ultra-sonic defect detector can convert the ultrasonic signal of reflection into electric signal; Through analyzing said electrical signal converted, can obtain quantification results such as defective locations, size and shape.
Step S23, the ratio of defects of the standard sample of the detected copper of calculating ultra-sonic defect detector-phosphorus briquet.Wherein, ratio of defects=defect area/target detection object plane long-pending (%).Specifically, among Fig. 4, the area (%) of the ratio of defects of standard sample 30=(area of the first defective 30a+second defective 30b)/standard sample 30.
Step S24 judges that whether the said ratio of defects that calculates surpasses preset range, if execution in step S25 then, execution in step S26 then if not.In the present embodiment, the preset range of the ratio of defects of standard sample 30 is set at 2.57%～2.77%.If the ratio of defects of the standard sample 30 that calculates explains that ultra-sonic defect detector is in stable duty, then execution in step S26 in 2.57%～2.77%.Otherwise, execution in step S25 then.
Step S25, the controlled variable of adjustment ultra-sonic defect detector, then execution in step S22.Ultra-sonic defect detector comprises a plurality of adjustable controlled variable, and for example, frequency of operation, gain control, decay control, step-length are regulated and sensitivity is regulated or the like.Find through inventor's research and analysis, to the copper-phosphorus briquet formula of different materials, the sensitivity scope of different ultra-sonic defect detectors can corresponding be set, detect stability to guarantee it, sensitivity is called flaw detection sensitivity again.In the present embodiment, to copper-phosphorus briquet, sensitivity is controlled in the scope of 55～60dB, can improves the stability of ultrasound examination, sensitivity can be finely tuned.After sensitivity is finely tuned, continue execution in step S22, the standard sample to copper-phosphorus briquet detects and calculates ratio of defects again.
Step S26 provides copper-phosphorus briquet.
Step S27 uses ultra-sonic defect detector that copper-phosphorus briquet is detected, and wherein, ultrasonic frequency is chosen as 15MHz.Copper-phosphorus briquet is detected with step S22 basic identical, different is, the target detection thing 40 among Fig. 4 is copper-phosphorus briquet, and the ultrasound wave that ultrasonic probe 41 produces is propagated in copper-phosphorus briquet, to detect the quality of copper-phosphorus briquet.
Step S28, according to the ultrasound examination result, the quality of assessment copper-phosphorus briquet.Select for use the ultrasonic of 15MHz to detect, it is fine when flaw size is big, to detect effect, can be directly judges interface quality from the height of the reflection wave of ultrasonic probe reception; For tiny defective; Through converting the ultrasonic signal that reflects into electric signal and it being analyzed; Can obtain position, size and the shape of defective; Thereby realize qualitative and quantitative assessment to copper-phosphorus briquet quality quality, and, can be as accurate as 2 significant digits through detecting the ratio of defects that can calculate.
After above-mentioned steps is accomplished, then qualified copper-phosphorus briquet is processed to form copper-P anode.Technology in the above-mentioned steps can adopt existing processes processing.
For verifying effect of the present invention, the copper-P anode that adopts existing technology to form is detected, under the equal conditions, disqualification rate can reduce by 5 percentage points.
In sum; The foregoing description adopts ultrasound wave copper-phosphorus briquet to carry out quality testing; It need not to destroy copper-phosphorus briquet, through the analysis to ultrasonic signal characteristic and defect characteristic, can obtain the quantification result directly perceived of defective locations, size and the shape evaluation of copper-phosphorus briquet; Thereby improved the objectivity and the reliability of copper-phosphorus briquet quality testing, and reduced the omission and the flase drop problem of copper-phosphorus briquet defects detection.The more important thing is, can avoid since copper-phosphorus briquet omission cause the copper-P anode after the processing when detecting, is needed destroy the underproof copper-P anode of quality the problem of the energy consumption waste in the copper-P anode processing technology that causes.
In addition; Film radiography is in check increase along with thickness during thick workpiece; Its check sensitivity also can descend, exactly because this reason, the inventor finds to use film radiography to copper-P anode (flake structure) of making when detecting; Disqualification rate is higher, is that film radiography detects inaccurate causing to copper-phosphorus briquet and cause this underproof partly cause.
Research shows that the quality of copper-P anode material was for example all once having very big influence for the character of the brazing point film of deposit.Therefore, also extremely important to the detection of copper-P anode.The present invention also provides with method like above-mentioned copper-phosphorus briquet detection type copper-P anode has been detected; The quality of the copper-P anode finished product that dispatches from the factory with raising; Make that in use copper-P anode be evenly to consume, can produce more uniform plating film and prolong life-span of anode.
Particularly, owing to copper-P anode is come by the processing of copper-phosphorus briquet, therefore, and copper-P anode and seemingly to the detection type of copper-phosphorus briquet, with reference to figure 5, the detection method of the present embodiment copper-P anode that below makes brief of the introduction.
Execution in step S31 at first provides the standard sample of copper-P anode.
Execution in step S32 uses ultra-sonic defect detector that the standard sample of said copper-P anode is detected, and wherein, ultrasonic frequency is chosen as 15MHz;
With to the detection type of copper-phosphorus briquet seemingly, the ultrasound examination of the copper-P anode in the present embodiment also is medium with water.
Described in step S22, with reference to Fig. 4, the degree of depth h1 that ultrasonic probe 41 stretches in the water is 6～10mm, and Ultrasound Probe Device 42 is when the distance h 2 of target detection thing 40 end faces is 55mm, and it is clear to form images, and the omission probability is low.This target detection thing 40 also can be standard sample, the copper-P anode of copper-P anode except being the standard sample 30, copper-phosphorus briquet of copper-phosphorus briquet.
In the testing process, also adopt filtrator that ultrasound wave is carried out filtering, disturb to eliminate outside noise.
In the present embodiment, be 15MHz to the ultrasonic frequency of selecting, the frequency of filtrator also is chosen as 15MHz.
Execution in step S33, the ratio of defects of the standard sample of the detected said copper-P anode of calculating ultra-sonic defect detector; Computing method are identical with step S23.
Execution in step S34 judges that whether the said ratio of defects that calculates surpasses preset range, if execution in step S35 then, execution in step S36 then if not.This preset range can be identical with the setting range to briquet, also can be 2.57%～2.77%.
Execution in step S35, the controlled variable of adjustment ultra-sonic defect detector, then execution in step S32.To copper-P anode, can be set at identically with briquet, for example sensitivity also is controlled in the scope of 55～60dB.
Execution in step S36 provides copper-P anode.This anode can form after qualified copper-phosphorus briquet is processed by detecting.
Execution in step S37 uses ultra-sonic defect detector that copper-P anode is detected, and wherein, ultrasonic frequency is chosen as 15MHz.This step is except detecting the thing difference, and is roughly basic identical with step S32
Execution in step S38, according to the ultrasound examination result, the quality of assessment copper-P anode.
Though the present invention with preferred embodiment openly as above; But it is not to be used for limiting the present invention; Any those skilled in the art are not breaking away from the spirit and scope of the present invention; Can utilize the method and the technology contents of above-mentioned announcement that technical scheme of the present invention is made possible change and modification, therefore, every content that does not break away from technical scheme of the present invention; To any simple modification, equivalent variations and modification that above embodiment did, all belong to the protection domain of technical scheme of the present invention according to technical spirit of the present invention.
Claims (21)
1. the detection method of copper-phosphorus briquet is characterized in that, comprising:
Copper-phosphorus briquet is provided, and said copper-phosphorus briquet material purity is at least 4N;
Said copper-phosphorus briquet is carried out ultrasound examination, and wherein, said frequency of ultrasonic is 5～20MHz.
2. the detection method of copper as claimed in claim 1-phosphorus briquet is characterized in that, said frequency of ultrasonic is 15MHz.
3. the detection method of copper as claimed in claim 2-phosphorus briquet is characterized in that, it is with ultra-sonic defect detector said copper-phosphorus briquet to be detected that said copper-phosphorus briquet is carried out ultrasound examination.
4. the detection method of copper as claimed in claim 3-phosphorus briquet is characterized in that, said copper-phosphorus briquet is being carried out also comprising before the ultrasound examination: detect with the standard sample of ultra-sonic defect detector to said copper-phosphorus briquet.
5. the detection method of copper as claimed in claim 4-phosphorus briquet is characterized in that, saidly with ultra-sonic defect detector the said copper-standard sample of phosphorus briquet is detected and comprises: the ratio of defects of calculating the standard sample of said copper-phosphorus briquet; The sensitivity of adjustment ultra-sonic defect detector when the ratio of defects of calculating gained exceeds preset range.
6. the detection method of copper as claimed in claim 5-phosphorus briquet is characterized in that the preset range of the ratio of defects of said standard sample is set at 2.57%～2.77%, and the sensitivity of said ultra-sonic defect detector is 55～60dB.
7. the detection method of copper as claimed in claim 3-phosphorus briquet is characterized in that, said ultrasound examination is to be medium with water.
8. the detection method of copper as claimed in claim 7-phosphorus briquet is characterized in that, said ultra-sonic defect detector comprises the ultrasonic probe that sends ultrasound wave and reception ultrasonic reflections, and the degree of depth that said ultrasonic probe stretches in the water is 6～10mm.
9. the detection method of copper as claimed in claim 8-phosphorus briquet is characterized in that said ultra-sonic defect detector also comprises the filtrator that said ultrasound wave is carried out filtering, and the frequency of said filtrator is 15MHz.
10. the detection method of copper as claimed in claim 8-phosphorus briquet is characterized in that, said ultra-sonic defect detector also comprises the Ultrasound Probe Device that the drive ultrasonic probe moves, and the distance of said Ultrasound Probe Device and copper-P anode end face is 55mm.
11. the detection method of a copper-P anode is characterized in that, comprising:
Copper-P anode is provided, and said copper-P anode material purity is at least 4N;
Said copper-P anode is carried out ultrasound examination, and wherein, said frequency of ultrasonic is 5～20MHz.
12. the detection method of copper-P anode as claimed in claim 11 is characterized in that, said frequency of ultrasonic is 15MHz.
13. the detection method of copper-P anode as claimed in claim 12 is characterized in that, it is with ultra-sonic defect detector said copper-P anode to be detected that said copper-P anode is carried out ultrasound examination.
14. the detection method of copper-P anode as claimed in claim 13 is characterized in that, said copper-P anode is being carried out also comprising before the ultrasound examination: detect with the standard sample of ultra-sonic defect detector to said copper-P anode.
15. the detection method of copper-P anode as claimed in claim 14 is characterized in that, the said standard sample of said copper-P anode the detection with ultra-sonic defect detector comprises: the ratio of defects of calculating the standard sample of said copper-P anode; The sensitivity of adjustment ultra-sonic defect detector when the ratio of defects of calculating gained exceeds preset range.
16. the detection method of copper-P anode as claimed in claim 15 is characterized in that, the preset range of the ratio of defects of said standard sample is set at 2.57%～2.77%, and the sensitivity of said ultra-sonic defect detector is 55～60dB.
17. the detection method of copper-P anode as claimed in claim 13 is characterized in that, said ultrasound examination is to be medium with water.
18. the detection method of copper-P anode as claimed in claim 17 is characterized in that, said ultra-sonic defect detector comprises the ultrasonic probe that sends ultrasound wave and reception ultrasonic reflections, and the degree of depth that said ultrasonic probe stretches in the water is 6～10mm.
19. the detection method of copper-P anode as claimed in claim 18 is characterized in that, said ultra-sonic defect detector also comprises the filtrator that said ultrasound wave is carried out filtering, and the frequency of said filtrator is 15MHz.
20. the detection method of copper-P anode as claimed in claim 18 is characterized in that, said ultra-sonic defect detector also comprises the Ultrasound Probe Device that the drive ultrasonic probe moves, and the distance of said Ultrasound Probe Device and copper-P anode end face is 55mm.
21. the formation method of a copper-P anode is characterized in that, comprising:
Any described detection method detects copper-phosphorus briquet among the employing claim 1-10;
Qualified copper-phosphorus briquet is processed to form copper-P anode.
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| CN111812203A (en) * | 2020-08-10 | 2020-10-23 | 宁波江丰电子材料股份有限公司 | Ultrasonic detection method for cobalt target welded product |
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