CN103433813A - On-site metallographic examination polishing method applicable to tower material - Google Patents
On-site metallographic examination polishing method applicable to tower material Download PDFInfo
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- CN103433813A CN103433813A CN2013103242879A CN201310324287A CN103433813A CN 103433813 A CN103433813 A CN 103433813A CN 2013103242879 A CN2013103242879 A CN 2013103242879A CN 201310324287 A CN201310324287 A CN 201310324287A CN 103433813 A CN103433813 A CN 103433813A
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Abstract
The invention relates to an on-site metallographic examination polishing method applicable to a tower material, and the method comprises the following steps that (1) oxide skin is removed; (2) an abrasive disc is used for roughly grinding; (3) abrasive paper is used for finely grinding: No. 400 abrasive paper and No. 600 abrasive paper are used on a polishing machine simultaneously, wherein the No. 400 abrasive paper is arranged above and the No. 600 abrasive paper is arranged below, the No. 400 abrasive paper is used for polishing and torn off and the No. 600 abrasive paper is exposed, and then the No. 600 abrasive paper is used for polishing until the testing requirements are met. According to the method, the time for on-site polishing is greatly saved, and the work efficiency of on-site metallographic examination is improved.
Description
Technical field
The invention belongs to power system generating and power equipment and manufacture processing technique field, particularly a kind of on-the-spot metal lographic examination polishing process that is applicable to the tower material.
Background technology
The in-service electric power pylon of power system, lightning rod steel tower, must carry out grinding process when Metallographic Analysis is carried out at scene, and polishing is that the method by mechanical grinding obtains smooth test and shows.As shown in Figure 1, traditional polishing flow process is 1. electric angle grinder scale removal or coatings; 2. abrasive disc is roughly ground; 3.#100 sand paper fine grinding; 4.#200 sand paper fine grinding; 5.#400 sand paper fine grinding; 6.#600 sand paper fine grinding, and need to carry out " screw off screw, change sand paper, screw on screw " between every two steps of the 2nd step to the 6 steps, approximately expend 1 minute, in-service electric power pylon, the on-the-spot grinding process of lightning rod steel tower need 19-22 minute altogether at every turn, and the time is longer.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, a kind of on-the-spot metal lographic examination polishing process that is applicable to the tower material is provided.
The present invention solves its technical problem and takes following technical scheme to realize:
A kind of on-the-spot metal lographic examination polishing process that is applicable to the tower material, the step of the method is as follows:
(1) scale removal;
(2) abrasive disc is roughly ground;
(3) sand paper fine grinding, employing is gone up #400 sand paper and #600 sand paper on sanding machine simultaneously, and #400 sand paper is set up, and #600 sand paper deposits, after the #400 sand papering, it is torn and expose following #600 sand paper, use #600 sand paper to be polished again and complete after meeting test requirements document.
And, described step (1) scale removal rapid concrete to adopt electric angle grinder scale removal or coating time be 3.0 minutes to 3.5 minutes.
And described step is concrete abrasive disc corase grind 3.0 minutes to 3.5 minutes that adopt of abrasive disc corase grind (2).
Advantage of the present invention and good effect are
The present invention merges the polishing step, simplify the technique for grinding flow process, remove the polishing operation of #100 sand paper and #200 sand paper, and adopt suitable process, remove " screw off screw, change sand paper, screw on screw " technological process, adopt new method to polish needs, within 13 minutes, greatly to have saved the on-the-spot polishing time used at every turn, improves on-the-spot metal lographic examination operating efficiency.
The accompanying drawing explanation
Fig. 1 is current traditional polishing flow process and required time schematic diagram;
Fig. 2 is the inventive method polishing flow process and required time schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing, the embodiment of the present invention is further described, following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
To now methodical analysis and contrast test
The flow process of air exercise grinder order is analyzed as follows: as shown in Figure 1, the polishing operation has 6 steps and forms, wherein 1,2 steps act as polishing check surface and obtain even curface, the grinding wheel that this two step is used and the granularity of abrasive disc abrasive particle differ larger, carry out separately an operation and can't reach and polish the smooth purpose shown, therefore 1,2 steps can not be omitted or merge; The effect of 3～6 steps is that polishing check surface reaches certain roughness, has used respectively sand paper each polishing of #100, #200, #400, #600 once, and between the comparatively loaded down with trivial details and sand paper of operation, granularity differs less, has the possibility that merges flow process.Adopt #400 sand paper+two kinds, #600 sand paper combination to be tested, result of the test is: these two kinds of combinations all can reach former method polishing and show the requirement of grinding fineness for detection, do not affect the carrying out of follow-up work.Therefore can merge the polishing step, simplify the technique for grinding flow process, the 3rd step, the 4th step are removed.
As shown in Figure 2, due to by the 3rd step, the 4th step is removed, for ensureing final working effect, so at first to 1, every step working time of 2 steps by original 2.5-3.0 minute proper extension to every step 3-3.5 minute, between abrasive disc corase grind and #400 sand paper fine grinding process, #400 sand paper and #600 sand paper can be gone up on sanding machine simultaneously, #400 sand paper is set up, #600 sand paper deposits, after the #400 sand papering is complete, it is torn and expose following #600 sand paper, can be under the prerequisite that does not affect polishing work, save the time of once changing sand paper, so just removed and " screwed off screw, change sand paper, screw on screw " technological process, further saved the polishing time of metal lographic examination.
A kind of on-the-spot metal lographic examination polishing process that is applicable to the tower material, as shown in Figure 2, the step of the method is as follows:
(1) scale removal; In concrete enforcement, specifically adopting electric angle grinder scale removal or coating time is 3.0 minutes to 3.5 minutes;
(2) abrasive disc is roughly ground; In concrete enforcement, specifically adopt abrasive disc corase grind 3.0 minutes to 3.5 minutes;
(3) sand paper fine grinding; In concrete enforcement, the concrete employing gone up #400 sand paper and #600 sand paper on sanding machine simultaneously, #400 sand paper is set up, #600 sand paper deposits, the #600 sand paper that the #400 sand papering was torn it below exposing in 3.0 minutes after 3.5 minutes, use #600 sand paper completes after being polished and meeting test requirements document to 3.5 minutes in 3.0 minutes.
The present invention seems simply, but has passed through a large amount of checkings repeatedly, and the present invention appears on time of each polishing and saved a few minutes, but, for the annual a large amount of on-the-spot Metallographic Analysis of power system, obtained economic benefit is very huge.
Claims (3)
1. an on-the-spot metal lographic examination polishing process that is applicable to the tower material, it is characterized in that: the step of the method is as follows:
(1) scale removal;
(2) abrasive disc is roughly ground;
(3) sand paper fine grinding, employing is gone up #400 sand paper and #600 sand paper on sanding machine simultaneously, and #400 sand paper is set up, and #600 sand paper deposits, after the #400 sand papering, it is torn and expose following #600 sand paper, use #600 sand paper to be polished again and complete after meeting test requirements document.
2. the on-the-spot metal lographic examination polishing process that is applicable to the tower material according to claim 1 is characterized in that: described step (1) scale removal rapid concrete to adopt electric angle grinder scale removal or coating time be 3.0 minutes to 3.5 minutes.
3. the on-the-spot metal lographic examination polishing process that is applicable to the tower material according to claim 1 is characterized in that: described step is concrete abrasive disc corase grind 3.0 minutes to 3.5 minutes that adopt of abrasive disc corase grind (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013103242879A CN103433813A (en) | 2013-07-30 | 2013-07-30 | On-site metallographic examination polishing method applicable to tower material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013103242879A CN103433813A (en) | 2013-07-30 | 2013-07-30 | On-site metallographic examination polishing method applicable to tower material |
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| CN103433813A true CN103433813A (en) | 2013-12-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108296886A (en) * | 2018-04-09 | 2018-07-20 | 东北大学 | A kind of polishing method of heavy-gauge steel iron casting test specimen |
| CN111189684A (en) * | 2020-01-14 | 2020-05-22 | 中国能源建设集团北京电力建设有限公司 | On-site metallographic examination method |
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| JP2001242163A (en) * | 2000-02-28 | 2001-09-07 | Nisshin Steel Co Ltd | Method for measuring cleanliness index of hot-rolled material for shadow mask |
| CN101692026A (en) * | 2009-10-14 | 2010-04-07 | 承德建龙特殊钢有限公司 | Process method for manufacturing metallographic specimen |
| CN201464252U (en) * | 2009-08-10 | 2010-05-12 | 鞍钢股份有限公司 | Field metallographic sample preparation tool |
| CN201619030U (en) * | 2010-01-12 | 2010-11-03 | 南京钢铁股份有限公司 | Metallographic double-layered combined abrasive paper |
| CN102928266A (en) * | 2011-08-08 | 2013-02-13 | 上海万泰韬略检测技术有限公司 | Novel on-site metallographic rapid sample preparation method without sand paper or flannelette |
| CN103128629A (en) * | 2011-12-01 | 2013-06-05 | 浚鑫科技股份有限公司 | Polishing method for mesh belt of screen printing device |
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2013
- 2013-07-30 CN CN2013103242879A patent/CN103433813A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001242163A (en) * | 2000-02-28 | 2001-09-07 | Nisshin Steel Co Ltd | Method for measuring cleanliness index of hot-rolled material for shadow mask |
| CN201464252U (en) * | 2009-08-10 | 2010-05-12 | 鞍钢股份有限公司 | Field metallographic sample preparation tool |
| CN101692026A (en) * | 2009-10-14 | 2010-04-07 | 承德建龙特殊钢有限公司 | Process method for manufacturing metallographic specimen |
| CN201619030U (en) * | 2010-01-12 | 2010-11-03 | 南京钢铁股份有限公司 | Metallographic double-layered combined abrasive paper |
| CN102928266A (en) * | 2011-08-08 | 2013-02-13 | 上海万泰韬略检测技术有限公司 | Novel on-site metallographic rapid sample preparation method without sand paper or flannelette |
| CN103128629A (en) * | 2011-12-01 | 2013-06-05 | 浚鑫科技股份有限公司 | Polishing method for mesh belt of screen printing device |
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| 曹建中: "电解抛光──现场金相检验的捷径", 《华东电力》 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108296886A (en) * | 2018-04-09 | 2018-07-20 | 东北大学 | A kind of polishing method of heavy-gauge steel iron casting test specimen |
| CN108296886B (en) * | 2018-04-09 | 2019-10-25 | 东北大学 | A kind of polishing method of heavy-gauge steel iron casting test specimen |
| CN111189684A (en) * | 2020-01-14 | 2020-05-22 | 中国能源建设集团北京电力建设有限公司 | On-site metallographic examination method |
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Application publication date: 20131211 |