CN102589863A - Method for judging whether old metal part can be directly reused - Google Patents
Method for judging whether old metal part can be directly reused Download PDFInfo
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- CN102589863A CN102589863A CN201210016477XA CN201210016477A CN102589863A CN 102589863 A CN102589863 A CN 102589863A CN 201210016477X A CN201210016477X A CN 201210016477XA CN 201210016477 A CN201210016477 A CN 201210016477A CN 102589863 A CN102589863 A CN 102589863A
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Abstract
The invention discloses a method for judging whether an old metal part can be directly reused, belonging to the technical field of mechanical assembly. The method comprises the following specific steps of: (1) calculating the fatigue life of a design metal part of a metal part to be detected, and judging whether the rest service life of the metal part to be detected is sufficient; (2) detecting the appearance form and the size of the metal part to be detected; (3) detecting the faults of the metal part to be detected, and judging whether the metal part to be detected has crack defects; and (4) analyzing and testing the mechanical properties, the metal structure and the components of the metal part to be detected, and judging whether the metal part to be detected conforms to the required use performance requirement. The method has the advantage of judging whether the metal part to be detected conforms to the required performance requirement through a series of analysis tests, the old metal part can be reused as a new metal part through simple processing if the detection results are satisfactory, the manpower and material resources are saved, the production cost of the metal part is saved, energy is saved, environment is protected, and the production efficiency is improved.
Description
Technical field
The present invention relates to the mechanical assembly technique field, be specifically related to a kind of method of judging that can old metalwork directly re-use.
Background technology
In the rolling stock manufacturing industry; In order to reduce the abrasion of running part; Eliminate the generation and the transmission of vibration and noise, improve passenger train from goods train running stability and comfortableness, increase operation life; Lower support surface, axle box and framework on car body and bolster, bolster and framework, spring, and extensively adopt rubber absorber between the direct contact site of various metal.This class component all be through adhesive with rubber attached on the metallic framework, metal pair rubber can play the effect of reinforcement, enhancing, skeleton, rubber then makes metal have the function of wear-resisting, damping, anti-impact, anticorrosion, insulation, sealing.Such element application field is very wide, and rail freight uses and is metal-rubber combined in the rubber elastic element mostly at present.Yet according to metal-rubber combined circuit elements design principle and to being replaced in kind the observation, it mainly is rubber components inefficacy and impaired that such composite component lost efficacy, and the performance of its metallic framework and structure are intact basically.Therefore, can use circular economy concept, use green technology to peel off scrap rubber, utilize metallic framework, raising metallic article utilization rate more safely, reduce again the emphasis that manufacturing cost becomes current research.
Summary of the invention
The method that can old metalwork directly re-use is judged in the detection that the technical matters that the present invention will solve provides a kind of energy-conserving and environment-protective, save production cost, turn waste into wealth.
For solving the problems of the technologies described above, the technical scheme that the present invention taked is: a kind of method of judging that can old metalwork directly re-use, and its method step is following: (1) Calculation of Fatigue Life: utilize finite element analysis software; Set up finite element analysis model according to metalwork form size to be measured, material; In conjunction with relevant operation technique condition and actual applying working condition, it is carried out Calculation of Fatigue Life, obtain the theoretical service life of metalwork to be measured; Obtain its remaining life with deducting its years already spent its theoretical service life then; If the remaining life of metalwork to be measured still meets the correlation technique requirement, then its time limit that can re-use safely of decidable is proceeded next step detection then; Otherwise judge that metalwork to be measured can not re-use detection of end;
(2) form dimension inspection: the to be measured metalwork qualified to remaining life carries out the form dimension inspection; Judge whether it still meets the design size requirement; If metalwork to be measured meets the design size requirement, then proceed next step detection, otherwise judge that metalwork to be measured can not re-use;
(3) defect detecting test: carry out defect detecting test to detecting qualified metalwork to be measured through step (2); Judge whether it exists crack defect; If there is not crack defect in metalwork to be measured, then proceeds next step detection, otherwise judge that metalwork to be measured can not re-use;
(4) Performance Detection: will through step (3) detect qualified metalwork a collection of to be measured on request ratio carry out sampling Detection; Respectively the metalwork to be measured of sampling is carried out chemical constitution, mechanical property, hardness, metal structure, 180 ° of bendings and impulse test, judge according to test findings whether metalwork to be measured still meets required usability requirement.
Finite element analysis software can use ANSYS software or I-DEAS software in the above-mentioned steps (1).
Beneficial effect of the present invention is following: through a series of detection step; Can judge whether old metalwork still meets required performance requirement; If testing result meets the requirements, then old metalwork just can be used as new metalwork again through simple process and use, and uses manpower and material resources sparingly; Practice thrift the production cost of metalwork, improved production efficiency in the time of energy-conserving and environment-protective.
Embodiment
Judge that the method that can a collection of old metalwork directly re-use is following:
(1) utilizes finite element analysis softwares such as I-DEAS, ANSYS, set up finite element analysis model according to metalwork form size to be measured, material, in conjunction with relevant operation technique condition and actual applying working condition; It is carried out Calculation of Fatigue Life; Obtain the theoretical service life of metalwork to be measured, obtain its remaining life with deducting its years already spent its theoretical service life then, if the remaining life of metalwork to be measured still meets the correlation technique requirement; Its time limit that can re-use safely of decidable then; Proceed next step detection then, otherwise judge that metalwork to be measured can not re-use detection of end.
(2) the qualified metalwork to be measured of remaining life after detecting through step (1) is carried out the form dimension inspection; Judge whether it still meets the design size requirement; If metalwork to be measured meets the design size requirement; Then proceed next step detection, otherwise judge that metalwork to be measured can not re-use.
(3) carry out defect detecting test to detecting qualified metalwork to be detected, judge whether it exists crack defect,, then proceed next step detection, otherwise judge that metalwork to be measured can not re-use if there is not crack defect in metalwork to be measured through step (2).
(4) will through step (3) detect qualified metalwork a collection of to be measured on request ratio carry out sampling Detection; Respectively the metalwork to be measured of sampling is carried out chemical constitution, mechanical property, hardness, metal structure, 180 ° of bendings and impulse test, judge according to test findings whether metalwork to be measured still meets required usability requirement.
Through after the above-mentioned detection step, the old metalwork that testing result is qualified continues to come into operation through being used as new metalwork again after the simple process, has practiced thrift the production cost of new metalwork, has improved production efficiency.
Claims (1)
1. method of judging that can old metalwork directly re-use is characterized in that its method step is following:
(1) Calculation of Fatigue Life: utilize finite element analysis software, set up finite element analysis model according to metalwork form size to be measured, material, in conjunction with relevant operation technique condition and actual applying working condition; It is carried out Calculation of Fatigue Life; Obtain the theoretical service life of metalwork to be measured, obtain its remaining life with deducting its years already spent its theoretical service life then, if the remaining life of metalwork to be measured still meets the correlation technique requirement; Its time limit that can re-use safely of decidable then; Proceed next step detection then, otherwise judge that metalwork to be measured can not re-use detection of end;
(2) form dimension inspection: the to be measured metalwork qualified to remaining life carries out the form dimension inspection; Judge whether it still meets the design size requirement; If metalwork to be measured meets the design size requirement, then proceed next step detection, otherwise judge that metalwork to be measured can not re-use;
(3) defect detecting test: carry out defect detecting test to detecting qualified metalwork to be measured through step (2); Judge whether it exists crack defect; If there is not crack defect in metalwork to be measured, then proceeds next step detection, otherwise judge that metalwork to be measured can not re-use;
(4) Performance Detection: will detect qualified metalwork a collection of to be measured through step (3); Extracting at least 10 detects; Respectively the metalwork to be measured of sampling is carried out chemical constitution, mechanical property, hardness, metal structure, 180 ° of bendings and impulse test, judge according to test findings whether metalwork to be measured still meets required usability requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210016477XA CN102589863A (en) | 2012-01-19 | 2012-01-19 | Method for judging whether old metal part can be directly reused |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210016477XA CN102589863A (en) | 2012-01-19 | 2012-01-19 | Method for judging whether old metal part can be directly reused |
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| CN102589863A true CN102589863A (en) | 2012-07-18 |
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| CN201210016477XA Pending CN102589863A (en) | 2012-01-19 | 2012-01-19 | Method for judging whether old metal part can be directly reused |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782550A (en) * | 2017-10-26 | 2018-03-09 | 苏州赛维新机电检测技术服务有限公司 | A kind of stainless steel support checking system |
| DE102020213694A1 (en) | 2020-10-30 | 2022-05-05 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein | Automated evaluation of screws used |
| CN114558881A (en) * | 2022-03-10 | 2022-05-31 | 广东省车汇莱再生物资回收有限公司 | New energy scraped car resource recovery system based on it is intelligent |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101162234A (en) * | 2007-11-23 | 2008-04-16 | 华东理工大学 | Remanent service life prediction method of steam turbine high-temperature component |
| CN102221473A (en) * | 2010-04-14 | 2011-10-19 | 广州市特种机电设备检测研究院 | Method for estimating remaining fatigue life of main metal structure of crane |
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2012
- 2012-01-19 CN CN201210016477XA patent/CN102589863A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162234A (en) * | 2007-11-23 | 2008-04-16 | 华东理工大学 | Remanent service life prediction method of steam turbine high-temperature component |
| CN102221473A (en) * | 2010-04-14 | 2011-10-19 | 广州市特种机电设备检测研究院 | Method for estimating remaining fatigue life of main metal structure of crane |
Non-Patent Citations (2)
| Title |
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| 闫嘉琪等: "《机械设备维修基础》", 31 August 2009, 冶金工业出版社 * |
| 马昌红: "U71Mn钢轨焊缝处核伤扩展寿命的估算", 《铁道学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782550A (en) * | 2017-10-26 | 2018-03-09 | 苏州赛维新机电检测技术服务有限公司 | A kind of stainless steel support checking system |
| DE102020213694A1 (en) | 2020-10-30 | 2022-05-05 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein | Automated evaluation of screws used |
| CN114558881A (en) * | 2022-03-10 | 2022-05-31 | 广东省车汇莱再生物资回收有限公司 | New energy scraped car resource recovery system based on it is intelligent |
| CN114558881B (en) * | 2022-03-10 | 2022-12-09 | 广东省车汇莱再生物资回收有限公司 | New energy scraped car resource recovery system based on it is intelligent |
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Application publication date: 20120718 |