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Remanufacturing process of concavely rolled roller
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A technology of remanufacturing and rolling, which is applied in the field of remanufacturing technology of concave rolling wheels, can solve the problems of increasing the processing cost of copper pipe manufacturers, waste of resources, scrapping concave rolling wheels, etc., to improve the comprehensive mechanical properties, prolong the service life, and improve the The effect of wear resistance
Inactive Publication Date: 2014-12-24
WUHU DINGHAN REMFR TECH
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Description
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Problems solved by technology
Among them, the concave rolling wheel wears more seriously in the long-term working process, and must be replaced in time to prevent the worn concave rolling wheel from affecting the processing accuracy of the copper pipe, and the wor
Method used
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Embodiment 1
[0022] A gravure roll remanufacturing process includes the following process steps:
[0023] (1) Pre-treatment:
[0024] a) Degreasing and degreasing;
[0025] b) Rust removal: remove the rust on the surface of the concave roller;
[0026] c) Phosphating: After phosphating, it can prevent the gravure roller from being corroded, and it can also improve the adhesion between the sprayed coating and the gravure roller;
[0027] d) Sandblasting: For deep surface damage, arc bottoming is required. For arc bottoming, use special arc wire, namely nickel-chromium aluminum wire;
[0028] (2) Spraying: use supersonic flame equipment to spray CBN-WC-10Co material on the gravure roller to form a CBN-WC-10Co coating. The spraying parameters are: tooling speed 240r / min; flame distance: 15cm; powder delivery The control voltage is 5v, the flame temperature is 2000℃; the moving speed of the spray gun is 0.01m / s;
[0029] Gas flow: 120L / H for air, 30L / H for oxygen, 25L / H for propane;
[0030] Equipment gas...
Embodiment 2
[0034] A gravure roll remanufacturing process includes the following process steps:
[0035] (1) Pre-treatment:
[0036] a) Degreasing and degreasing;
[0037] b) Rust removal: remove the rust on the surface of the concave roller;
[0038] c) Phosphating: After phosphating, it can prevent the gravure roller from being corroded, and it can also improve the adhesion between the sprayed coating and the gravure roller;
[0039] d) Sandblasting: For deep surface damage, spray welding is required for primer, and Ni60 wire is used for spray welding;
[0040] (2) Spraying: use supersonic flame equipment to spray CBN-WC-10Co material on the gravure roller to form a CBN-WC-10Co coating. The spraying parameters are: tooling speed 240r / min; flame distance: 15cm; powder delivery The control voltage is 5v, the flame temperature is 2000℃; the moving speed of the spray gun is 0.01m / s;
[0041] Gas flow: 120L / H for air, 30L / H for oxygen, 25L / H for propane;
[0042] Equipment gas pressure: Propane pressure...
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Abstract
The invention relates to a remanufacturing process of a concavely rolled roller. The remanufacturing process comprises the following process steps: (1) preprocessing comprising the steps of a) degreasing and deoiling, b) derusting, namely removing the rust on the surface of the concavely rolled roller, c) phosphating, and d) sandblasting; (2) spraying, namely spraying a CBN-WC-10Co material on the concavely rolled roller to form a CBN-WC-10Co layer by use of a supersonic-speed flame apparatus; (3) after-processing. The remanufacturing process of the concavely rolled roller is used for solving the problems of relatively poor wear resistance and relatively low corrosion resistance of a traditional coating; the CBN-WC-10Co material is sprayed on the surface of the concavely rolled roller to form the CBN-WC-10Co coating, and therefore, the remanufacturing and the utilization of the concavely rolled roller are realized, the waste of resources is avoided and the production and manufacturing cost of a factory is reduced; meanwhile, the properties of the concavely rolled roller are improved and the service life of the concavely rolled roller is prolonged.
Description
Technical field [0001] The invention relates to the technical field of remanufacturing, in particular to a gravure roller remanufacturing process. Background technique [0002] In the production process of copper pipe, it needs to be drawn and formed, and the gravure roller is inseparable from the drawing process. The gravure rollers are mainly affected by dynamic and static loads, wear and temperature changes during rolling. Among them, the gravure roller wear is more serious in the long-term work process, and it must be replaced in time to prevent the worn gravure roller from affecting the processing accuracy of the copper pipe, and the worn gravure roller is not taken Corresponding repair measures resulted in a large number of worn-out gravure rollers being scrapped, which resulted in serious waste of resources and increased the processing costs of copper pipe manufacturers. Summary of the invention [0003] The technical problem to be solved by the present invention is to pr...
Claims
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Application Information
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