CN104789962A - Scraping plate re-manufacturing method - Google Patents
Scraping plate re-manufacturing method Download PDFInfo
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- CN104789962A CN104789962A CN201510227152.XA CN201510227152A CN104789962A CN 104789962 A CN104789962 A CN 104789962A CN 201510227152 A CN201510227152 A CN 201510227152A CN 104789962 A CN104789962 A CN 104789962A
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Abstract
The invention discloses a scraping plate re-manufacturing method and belongs to the technical field of machine manufacturing. The method is as follows: measuring the wear failure amount of each part of a scraping plate, remanufacturing by using an alloy powder laser cladding technique or a manual welding technique, finally cleaning the remanufactured scraping plate and performing anti-corrosion treatment. The method has the characteristic that the cost is low and the wear resistance of the remanufactured scraping plate is effectively improved; in aspects of hardness and deflection of the scraping plate, the performance of the remanufactured scraping plate is similar to that of a new product, and even better; the blank consumption can be effectively reduced and the resource recycling rate can be increased.
Description
Method field
The invention belongs to machinery manufacturing technology field, in particular to a kind of scraper plate reproducing method.
Background method
Scrapper conveyor is a kind of flight chain by means of motion, and carry the continuous transport equipment of bulk material, it is widely used in the industries such as metallurgy, building materials, electric power, chemical industry, cement, harbour, harbour, coal, mine, grain and oil, food, feed.
In the operational process of scrapper conveyor, the frictional force of chain and middle trough, the pressure etc. of convey materials, easily cause certain wearing and tearing and distortion to scraper plate.Therefore, the producer needs the wear intensity making regular check on scraper plate.The scraper plate little for abrasion loss manufactures again; The scraper plate large for abrasion loss is directly scrapped, and ensures safety in production.How manufacturing the scraper plate of wearing and tearing, making it have and be even better than new product performance with new product same performance, is the problem of worth technician's deep thinking again.
Summary of the invention
For the defect existed in existing method and deficiency, the invention provides that a kind of cost is low, the scraper plate reproducing method of high, the effective raising wear resistance of resource recycling rate.
For achieving the above object, the invention provides a kind of scraper plate reproducing method, comprise the steps:
(1) measure the wear out failure amount at the wearing and tearing each position of scraper plate, according to wear out failure amount and abrading section, adopt powdered alloy laser melting and coating process or manual welding technique to manufacture again;
(2) scraper plate manufactured again through step (1) is cleared up, and do rotproofing.
Further, before step (1), also comprise and pretreatment process is carried out to wearing and tearing scraper plate, described pre-treatment refers to carries out overall sandblasting to scraper plate, remove blade surface oil stain, rusty stain, polishing grinding is carried out, until expose metalluster to the face that manufactures again of scraper plate.
Further, the welding rod that described manual welding uses comprises common welding rod and Castolin shock peening series welding rod.
Further, in described step (1), according to wear out failure amount and abrading section, the concrete grammar adopting powdered alloy laser melting and coating process to manufacture again is:
(1) as 0.2mm< wear out failure amount≤1.5mm, wearing and tearing scraper plate other abrading sections except termination, adopt and the technique of direct for powdered alloy one cladding to abrading section are manufactured again;
(2) as 1.5mm< wear out failure amount≤3.1mm, wearing and tearing scraper plate other abrading sections except termination, adopt powdered alloy two cladding to abrading section, as bottoming cladding layer, again by powdered alloy one cladding to bottoming clad layer surface, the technique as capping cladding layer manufactures again;
(3) as 3.1mm< wear out failure amount≤6mm, wearing and tearing scraper plate other abrading sections except termination, adopt powdered alloy two cladding to abrading section, as bottoming cladding layer, then by powdered alloy one cladding to bottoming clad layer surface, as capping cladding layer, then the technique repeating bottoming cladding layer and the operation of capping cladding layer manufactures again.
Further, in described step (1), according to wear out failure amount and abrading section, the concrete grammar adopting manual welding technique to manufacture again is:
(1) as 0.2mm< wear out failure amount≤1.5mm, the termination of wearing and tearing scraper plate adopts the technique by Castolin shock peening series welding rod directly welds to manufacture again;
(2) as 1.5mm< wear out failure amount≤3.1mm, the termination of wearing and tearing scraper plate adopts and common welding rod is soldered to abrading section, as bottoming weld layer, again Castolin shock peening series welding rod is soldered to bottoming weld layer surface, the technique as cover welding layer manufactures again;
(3) as 3.1mm< wear out failure amount≤6mm, the termination of wearing and tearing scraper plate adopts and common welding rod is soldered to abrading section, as bottoming weld layer, again Castolin shock peening series welding rod is soldered to bottoming weld layer surface, the technique as cover welding layer manufactures again.
Further, described powdered alloy one comprises following mass fraction system component:
Carbon 0.10-0.18 part, boron 0.7-1.1 part, silicon 1.1-1.3 part, manganese 0.3-0.7 part, chromium 15.2-16.5 part, molybdenum 1.30-1.85 part, nickel 3.5-4.0 part, phosphorus 0.025-0.027 part, sulphur 0.008-0.01 part, oxygen 0.07-0.09 part and iron 74.143-77.597 part.
Further, described powdered alloy two comprises following mass fraction system component:
Carbon 0.06-0.09 part, chromium 18-19 part, manganese 0.6-1.0 part, silicon 0.7-0.9 part, nickel 23-30 part, molybdenum 2.5-3 part and iron 46.01-54.14 part.
Further, described powdered alloy one can adopt carbon dioxide laser to carry out cladding, and power is 6500-7200W, and linear velocity is 7-9mm/s, and step pitch is 5-7mm; Also semiconductor laser can be adopted to carry out cladding, and power is 2900-3100W, and linear velocity is 5-7mm/s, and step pitch is 6-8mm.
Further, described powdered alloy two can adopt carbon dioxide laser to carry out cladding, and power is 6800-7200w, and linear velocity is 7-9mm/s, and step pitch is 5-7mm; Also semiconductor laser can be adopted to carry out cladding, and power is 2950-3050w, and linear velocity is 7-9mm/s, and step pitch is 5-7mm.
Described powdered alloy one is used as capping cladding layer, and it has, and frictional coefficient is low, the feature of excellent in abrasion resistance, manufactures the wear resistance of scraper plate described in can effectively improving again; Described powdered alloy two is used as bottoming cladding layer, hardness is low, self-fluxing nature is good feature that it has, and impels described bottoming cladding layer to play a transition role scraping between board substrate and capping cladding layer;
Described common welding rod has low, the lower-cost feature of hardness; After described Castolin shock peening series welding rod welding forming, initial hardness is 90-100HB, and it has splendid shock resistance and high setting rate; Common welding rod and Castolin shock peening series welding rod are combined, are conducive to improving the wear resistance manufacturing scraper plate again, reduce costs.
Beneficial effect of the present invention is as follows:
The present invention adopts laser melting and coating process and the scraper plate of manual welding technique to wearing and tearing to manufacture again, have the advantages that low, the effective raising of cost manufactures the wear resistance of scraper plate again, in the hardness and amount of deflection of scraper plate, the performance manufacturing scraper plate and new product is again suitable, even be better than the performance of new product, meanwhile, by manufacturing again the scraper plate of wearing and tearing, effectively can reduce blank consumption, improving resource recycling rate.
Embodiment
Below in conjunction with the embodiment of the present invention, be clearly and completely described the method scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, this area usual way personnel, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one:
A kind of scraper plate reproducing method, comprises the steps:
(1) measure the wear out failure amount at the wearing and tearing each position of scraper plate, according to wear out failure amount and abrading section, adopt powdered alloy laser melting and coating process or manual welding technique to manufacture again;
(2) scraper plate manufactured again through step (1) is cleared up, and do rotproofing;
Wherein, before step (1), also comprise and pretreatment process is carried out to wearing and tearing scraper plate, described pre-treatment refers to carries out overall sandblasting to scraper plate, remove blade surface oil stain, rusty stain, polishing grinding is carried out, until expose metalluster to the face that manufactures again of scraper plate.
In described step (1), according to wear out failure amount and abrading section, the concrete grammar adopting powdered alloy laser melting and coating process to manufacture again is:
(1) as 0.2mm< wear out failure amount≤1.5mm, wearing and tearing scraper plate other abrading sections except termination, adopt and the technique of direct for powdered alloy one cladding to abrading section are manufactured again;
Described powdered alloy one comprises following mass fraction system component: carbon 0.10-0.18 part, boron 0.7-1.1 part, silicon 1.1-1.3 part, manganese 0.3-0.7 part, chromium 15.2-16.5 part, molybdenum 1.30-1.85 part, nickel 3.5-4.0 part, phosphorus 0.025-0.027 part, sulphur 0.008-0.01 part, oxygen 0.07-0.09 part and iron 74.143-77.597 part;
Described powdered alloy one can adopt carbon dioxide laser to carry out cladding, 0.2mm< cladding thickness≤1.5mm, and power is 6500-7200W, and linear velocity is 7-9mm/s, and step pitch is 5-7mm; Also semiconductor laser can be adopted to carry out cladding, 0.2mm< cladding thickness≤1.5mm, power is 2900-3100W, and linear velocity is 5-7mm/s, and step pitch is 6-8mm;
(2) as 1.5mm< wear out failure amount≤3.1mm, wearing and tearing scraper plate other abrading sections except termination, adopt powdered alloy two cladding to abrading section, as bottoming cladding layer, again by powdered alloy one cladding to bottoming clad layer surface, the technique as capping cladding layer manufactures again;
Described powdered alloy two comprises following mass fraction system component: carbon 0.06-0.09 part, chromium 18-19 part, manganese 0.6-1.0 part, silicon 0.7-0.9 part, nickel 23-30 part, molybdenum 2.5-3 part and iron 46.01-54.14 part;
Described powdered alloy two can adopt carbon dioxide laser to carry out cladding, and power is 6800-7200w, 1.3mm< cladding thickness≤1.6mm, and linear velocity is 7-9mm/s, and step pitch is 5-7mm; Also semiconductor laser can be adopted to carry out cladding, and power is 2950-3050w, 1.3mm< cladding thickness≤1.6mm, and linear velocity is 7-9mm/s, and step pitch is 5-7mm;
(3) as 3.1mm< wear out failure amount≤6mm, wearing and tearing scraper plate other abrading sections except termination, adopt powdered alloy two cladding to abrading section, as bottoming cladding layer, then by powdered alloy one cladding to bottoming clad layer surface, as capping cladding layer, then the technique repeating bottoming cladding layer and the operation of capping cladding layer manufactures again;
(4) as wear out failure amount >6mm, this scraper plate is directly scrapped, and will not repair.
In described step (1), according to wear out failure amount and abrading section, the concrete grammar adopting manual welding technique to manufacture again is:
(1) as 0.2mm< wear out failure amount≤1.5mm, the termination of wearing and tearing scraper plate adopts the technique by Castolin shock peening series welding rod directly welds to manufacture again;
(2) as 1.5mm< wear out failure amount≤3.1mm, the termination of wearing and tearing scraper plate adopts and common welding rod is soldered to abrading section, as bottoming weld layer, again Castolin shock peening series welding rod is soldered to bottoming weld layer surface, the technique as cover welding layer manufactures again;
(3) as 3.1mm< wear out failure amount≤6mm, the termination of wearing and tearing scraper plate adopts and common welding rod is soldered to abrading section, as bottoming weld layer, again Castolin shock peening series welding rod is soldered to bottoming weld layer surface, the technique as cover welding layer manufactures again;
(4) as wear out failure amount >6mm, this scraper plate is directly scrapped, and will not repair.
The welding rod that described manual welding uses comprises common welding rod and Castolin shock peening series welding rod, and described electrode diameter is 4mm, and electric current is 140-150A; Described termination is positioned at the two ends of scraper plate length direction.
Embodiment two:
A kind of scraper plate reproducing method according to embodiment one, comprises the steps:
1, as 0.2mm< wear out failure amount≤1.5mm, wearing and tearing scraper plate other abrading sections except termination, all can adopt laser melting and coating process to manufacture again, comprise the steps:
(1) carbon dioxide laser is adopted by powdered alloy one cladding to abrading section.
Described powdered alloy one, comprises following mass fraction system component: 0.10 part, carbon, boron 0.7 part, silicon 1.1 parts, 0.3 part, manganese, chromium 15.2 parts, molybdenum 1.30 parts, 3.5 parts, nickel, 0.025 part, phosphorus, sulphur 0.008 part, oxygen 0.07 part and iron 74.143 parts;
When described carbon dioxide laser alloy powder one carries out cladding, 0.2mm< cladding thickness≤1.5mm, power is 6500W, and linear velocity is 7mm/s, and step pitch is 5mm.
2, as 0.2mm< wear out failure amount≤1.5mm, the termination of wearing and tearing scraper plate adopts manual welding technique to manufacture again, comprises the steps:
(1) adopt diameter be 4mm Castolin shock peening series welding rod weld, current control is 140A, 0.2mm< throat thickness≤1.5mm.
In the present embodiment, wearing and tearing scraper plate other abrading sections except termination directly carry out the melting and coating process of powdered alloy one, and carry out the weldprocedure of Castolin shock peening series welding rod in the end of wearing and tearing scraper plate, then manufacturing process is simple, be beneficial to operation, cost is low.
Embodiment three:
A kind of scraper plate reproducing method according to embodiment one, comprises the steps:
1, as 1.5mm< wear out failure amount≤3.1mm, wearing and tearing scraper plate other abrading sections except termination, all can adopt laser melting and coating process to manufacture again, comprise the steps:
(1) semiconductor laser is adopted by powdered alloy two cladding to abrading section, as bottoming cladding layer;
(2) semiconductor laser is adopted by powdered alloy one cladding to bottoming clad layer surface, as capping cladding layer.
Described powdered alloy one, comprises following mass fraction system component: 0.14 part, carbon, boron 0.9 part, silicon 1.2 parts, 0.5 part, manganese, chromium 15.9 parts, molybdenum 1.63 parts, 3.7 parts, nickel, 0.026 part, phosphorus, sulphur 0.009 part, oxygen 0.08 part and iron 75.82 parts;
Described powdered alloy two, comprises following mass fraction system component: 0.07 part, carbon, chromium 18.5 parts, 0.8 part, manganese, silicon 0.8 part, 26.5 parts, nickel, molybdenum 2.7 parts and iron 50.08 parts;
When described semiconductor laser alloy powder one carries out cladding, 0.2mm< cladding thickness≤1.5mm, power 3000W, linear velocity is 6mm/s, and step pitch is 7mm;
When described semiconductor laser alloy powder two carries out cladding, 1.3mm< cladding thickness≤1.6mm, power is 3000w, and linear velocity is 8mm/s, and step pitch is 6mm.
2, as 1.5mm< wear out failure amount≤3.1mm, the termination of wearing and tearing scraper plate adopts manual welding technique to manufacture again, comprises the steps:
(1) common welding rod is adopted to carry out bottoming welding, as bottoming weld layer, 1.3mm< throat thickness≤1.6mm;
(2) Castolin shock peening series welding rod is adopted to be soldered to bottoming weld layer surface, as cover welding layer, 0.2mm< throat thickness≤1.5mm.
The diameter of described common welding rod and Castolin shock peening series welding rod is 4mm, and current control is 150A.
In the present embodiment, by powdered alloy one with powdered alloy two in conjunction with cladding, common welding rod and Castolin shock peening series welding rod are combined and weld, contributes to improving the wear resistance manufacturing position again.
Embodiment four:
A kind of scraper plate reproducing method according to embodiment one, comprises the steps:
1, as 3.1mm< wear out failure amount≤6mm, wearing and tearing scraper plate other abrading sections except termination, all can adopt laser melting and coating process to manufacture again, comprise the steps:
(1) carbon dioxide laser is adopted by powdered alloy two cladding to abrading section, as bottoming cladding layer one;
(2) adopt semiconductor laser that powdered alloy one cladding is surperficial to the bottoming cladding layer one of step (1), as capping cladding layer one;
(3) adopt carbon dioxide laser that powdered alloy two cladding is surperficial to the capping cladding layer one of step (2), as bottoming cladding layer two;
(4) adopt semiconductor laser that powdered alloy one cladding is surperficial to the bottoming cladding layer two of step (3), as capping cladding layer two.
Described powdered alloy one, comprises following mass fraction system component: 0.18 part, carbon, boron 1.1 parts, silicon 1.3 parts, 0.7 part, manganese, chromium 16.5 parts, molybdenum 1.85 parts, 4.0 parts, nickel, 0.027 part, phosphorus, sulphur 0.01 part, oxygen 0.09 part and iron 77.597 parts;
Described powdered alloy two, comprises following mass fraction system component: 0.09 part, carbon, chromium 19 parts, 1.0 parts, manganese, silicon 0.9 part, 30 parts, nickel, molybdenum 3 parts and iron 54.14 parts;
When described semiconductor laser alloy powder one carries out cladding, 0.2mm< cladding thickness≤1.5mm, power is 3100W, and linear velocity is 7mm/s, and step pitch is 8mm;
When described carbon dioxide laser alloy powder two carries out cladding, 1.3mm< cladding thickness≤1.6mm, power is 7200w, and linear velocity is 9mm/s, and step pitch is 7mm.
2, as 3.1mm< wear out failure amount≤6mm, the termination of wearing and tearing scraper plate adopts manual welding technique to manufacture again, comprises the steps:
(1) common welding rod is adopted to carry out bottoming welding, as bottoming weld layer, 2.9mm< throat thickness≤4.5mm;
(2) Castolin shock peening series welding rod is adopted to be soldered to bottoming weld layer surface, as cover welding layer, 0.2mm< throat thickness≤1.5mm.
The diameter of described common welding rod and Castolin shock peening series welding rod is 4mm, and current control is 150A.
3, as wear out failure amount >6mm, this scraper plate is directly scrapped, and will not repair.
In the present embodiment, by powdered alloy one with powdered alloy two repeatedly in conjunction with cladding, both made abrading section reach standard size, the wear resistance manufacturing position again can have been improved again.
Experiment one:
Get new product matrix A, random selecting adopts the scraper plate re-manufacturing technology that the present invention relates to manufacture the capping cladding layer B of scraper plate, the cover welding layer C of termination again, and take weight respectively, as weight before experiment, A, B, C are carried out with 45 steel respectively operate mill, control, for 1.5h, again to take the weight of A, B, C to time consuming, as weight after test, the experimental data drawn is as table 1:
Table 1:
| Material | Weight (g) before experiment | Weight (g) after experiment | Weight difference (g) |
| New product matrix A | 7.5658 | 7.5672 | 0.0014 |
| Capping cladding layer B | 14.3846 | 14.3830 | 0.0016 |
| Cover welding layer C | 12.2161 | 12.2146 | 0.0015 |
Above-mentioned experiment is carried out in Manufacturing Co., Ltd laboratory in big nation of Shandong energy refitting group again
From table 1, although the weight difference of A is less than the weight difference of B, C respectively, the gap of three's weight difference is very micro-.Therefore, in wear resistance, the scraper plate adopting the scraper plate re-manufacturing technology that the present invention relates to manufacture again is suitable with the performance of new product.
Experiment two:
Get adopt the scraper plate re-manufacturing technology that the present invention relates to manufacture again scraper plate A and new product B, Stochastic choice scraper plate A through manufacturing six different sites of process again, use portable hardometer, carry out hardness determination and record data; Use portable hardometer, detect the hardness of new product B same area and record data, the experimental data drawn is as table 2:
Table 2:
Above-mentioned experiment is carried out in Manufacturing Co., Ltd laboratory in big nation of Shandong energy refitting group again
From table 2, listed six hardness determination positions, place in table, the scraper plate A through manufacturing again has five place's hardness to be greater than the hardness of new product B, and the hardness of place's hardness and new product B is suitable.Therefore, in hardness performance, the scraper plate adopting the scraper plate re-manufacturing technology that the present invention relates to manufacture again is suitable with the performance of new product, is even better than the performance of new product.
Experiment three:
Get the scraper plate A and new product B that adopt the scraper plate re-manufacturing technology that the present invention relates to manufacture again, adopt 1000KN pressing machine to carry out scraper plate flexure test.According to the requirement of MTT323-2005 " Double chain scraper conveyor of China scraper plate ", pressing machine applied pressure value is 560KN, test span 904mm, and makes press pressure head load to be not more than the loading rate of 20N/mm per second, be increased to 560KN uniformly, be then unloaded to initial load.
In the process that pressing machine is exerted pressure, on scraper plate A, random selecting two different sites, are labeled as position one, position two, random selecting two different sites on new product B, be labeled as position three, position four, use try square to measure the deflection at selected position respectively, the experimental data drawn is as table 3:
Table 3:
Above-mentioned experiment is carried out in Manufacturing Co., Ltd laboratory in big nation of Shandong energy refitting group again
From table 3, the deflection value at selected position is roughly the same, and the deflection value at selected position all≤20mm, the amount of deflection namely through the scraper plate A that manufactures again and new product B all reaches standard-required.Therefore, at amount of deflection aspect of performance, the scraper plate adopting the scraper plate re-manufacturing technology that the present invention relates to manufacture again is suitable with the performance of new product.
In addition, be to be understood that, although this specification sheets is described according to embodiment, but not each embodiment only comprises an independently method scheme, this narrating mode of specification sheets is only for clarity sake, art processes personnel should by specification sheets integrally, and the method scheme in each embodiment also through appropriately combined, can form art processes personnel other embodiments understandable.
Claims (9)
1. a scraper plate reproducing method, is characterized in that: comprise the steps:
(1) measure the wear out failure amount at the wearing and tearing each position of scraper plate, according to wear out failure amount and abrading section, adopt powdered alloy laser melting and coating process or manual welding technique to manufacture again;
(2) scraper plate manufactured again through step (1) is cleared up, and do rotproofing.
2. a kind of scraper plate reproducing method according to claim 1, it is characterized in that: before step (1), also comprise and pretreatment process is carried out to wearing and tearing scraper plate, described pre-treatment refers to carries out overall sandblasting to scraper plate, remove blade surface oil stain, rusty stain, polishing grinding is carried out, until expose metalluster to the face that manufactures again of scraper plate.
3. a kind of scraper plate reproducing method according to claim 1, is characterized in that: the welding rod that described manual welding technique uses comprises common welding rod and Castolin shock peening series welding rod.
4. a kind of scraper plate reproducing method according to claim 1, is characterized in that: in described step (1), according to wear out failure amount and abrading section, and the concrete grammar adopting powdered alloy laser melting and coating process to manufacture again is:
(1) as 0.2mm< wear out failure amount≤1.5mm, wearing and tearing scraper plate other abrading sections except termination, adopt and the technique of direct for powdered alloy one cladding to abrading section are manufactured again;
(2) as 1.5mm< wear out failure amount≤3.1mm, wearing and tearing scraper plate other abrading sections except termination, adopt powdered alloy two cladding to abrading section, as bottoming cladding layer, again by powdered alloy one cladding to bottoming clad layer surface, the technique as capping cladding layer manufactures again;
(3) as 3.1mm< wear out failure amount≤6mm, wearing and tearing scraper plate other abrading sections except termination, adopt powdered alloy two cladding to abrading section, as bottoming cladding layer, then by powdered alloy one cladding to bottoming clad layer surface, as capping cladding layer, then the technique repeating bottoming cladding layer and the operation of capping cladding layer manufactures again.
5. a kind of scraper plate reproducing method according to claim 1, is characterized in that: in described step (1), according to wear out failure amount and abrading section, and the concrete grammar adopting manual welding technique to manufacture again is:
(1) as 0.2mm< wear out failure amount≤1.5mm, the termination of wearing and tearing scraper plate adopts the technique by Castolin shock peening series welding rod directly welds to manufacture again;
(2) as 1.5mm< wear out failure amount≤3.1mm, the termination of wearing and tearing scraper plate adopts and common welding rod is soldered to abrading section, as bottoming weld layer, again Castolin shock peening series welding rod is soldered to bottoming weld layer surface, the technique as cover welding layer manufactures again;
(3) as 3.1mm< wear out failure amount≤6mm, the termination of wearing and tearing scraper plate adopts and common welding rod is soldered to abrading section, as bottoming weld layer, again Castolin shock peening series welding rod is soldered to bottoming weld layer surface, the technique as cover welding layer manufactures again.
6. a kind of scraper plate reproducing method according to claim 4, is characterized in that: described powdered alloy one comprises following mass fraction system component:
Carbon 0.10-0.18 part, boron 0.7-1.1 part, silicon 1.1-1.3 part, manganese 0.3-0.7 part, chromium 15.2-16.5 part, molybdenum 1.30-1.85 part, nickel 3.5-4.0 part, phosphorus 0.025-0.027 part, sulphur 0.008-0.01 part, oxygen 0.07-0.09 part and iron 74.143-77.597 part.
7. a kind of scraper plate reproducing method according to claim 4, is characterized in that: described powdered alloy two comprises following mass fraction system component:
Carbon 0.06-0.09 part, chromium 18-19 part, manganese 0.6-1.0 part, silicon 0.7-0.9 part, nickel 23-30 part, molybdenum 2.5-3 part and iron 46.01-54.14 part.
8. a kind of scraper plate reproducing method according to claim 4, it is characterized in that: described powdered alloy one can adopt carbon dioxide laser to carry out cladding, power is 6500-7200W, and linear velocity is 7-9mm/s, and step pitch is 5-7mm; Also semiconductor laser can be adopted to carry out cladding, and power is 2900-3100W, and linear velocity is 5-7mm/s, and step pitch is 6-8mm.
9. a kind of scraper plate reproducing method according to claim 4, it is characterized in that: described powdered alloy two can adopt carbon dioxide laser to carry out cladding, power is 6800-7200w, and linear velocity is 7-9mm/s, and step pitch is 5-7mm; Also semiconductor laser can be adopted to carry out cladding, and power is 2950-3050w, and linear velocity is 7-9mm/s, and step pitch is 5-7mm.
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2015
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- 2015-07-13 AU AU2015100921A patent/AU2015100921A4/en not_active Expired
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105108444A (en) * | 2015-09-11 | 2015-12-02 | 江苏万力机械股份有限公司 | Repairing and strengthening method for tool of high-temperature in-service shearing equipment |
| CN107052619A (en) * | 2017-03-31 | 2017-08-18 | 安徽再制造工程设计中心有限公司 | A kind of oil drilling tools reparation iron-base self-fluxing alloy powder and its application method |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2015100921A4 (en) | 2015-08-20 |
| CN104789962B (en) | 2017-05-31 |
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