CN104451522A - Hot process for remanufacturing compression roller - Google Patents
Hot process for remanufacturing compression roller Download PDFInfo
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- CN104451522A CN104451522A CN201410603573.3A CN201410603573A CN104451522A CN 104451522 A CN104451522 A CN 104451522A CN 201410603573 A CN201410603573 A CN 201410603573A CN 104451522 A CN104451522 A CN 104451522A
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- pressure roller
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Abstract
The invention relates to a hot process for remanufacturing a compression roller. The hot process comprises the following steps: (1) pretreatment: a) degreasing and oil removal; b) rust removal; c) phosphorization; d) sand blasting; (2) spraying: spraying WC-12Co material by using an high velocity oxy-fuel equipment to form a coating; (3) after treatment. The WC-12Co coating is made of the WC-12Co material, so that such problems of the traditional coating as poor abrasion performance and low corrosion resistance are solved, and microstructures of the coating on the surface of the material is improved, so that the abrasion resistance performance of the material surface is integrally improved and the betterment comprehensive mechanical property is also improved remarkably; the WC-12Co coating is applied to the compression roller, so that the performance of the compression roller is greatly improved, the remanufacturing and the application of the abraded compression roller are realized, the maintenance cost of the equipment is reduced, and the service life of the compression roller is prolonged at the same time.
Description
Technical field
The present invention relates to re-manufacturing technology field, a kind of pressure roller manufactures thermal process more specifically.
Background technology
Pressure roller application comparatively general in the middle of daily production, life, the effect of pressure roller be the film of extrusion molding or calendering is overlayed with base material equably together with.Also together with the base material scribbling sizing material can being overlayed with non-stick material in sticking tape manufacturing processed.Sometimes also refer to the rubber rollers on embossing machine, it can coordinate with engraved roll, and tablet carries out even embossing.And for example, pressure roller is commonly used for compacting copper sheet, utilizes two pressure rollers positioned opposite to extrude the copper material be clipped between pressure roller, thus makes copper sheet compression moulding.But because the wear resisting property of traditional pressure roller is poor, easily wear and tear in use for some time, work-ing life is shorter, causes the copper sheet that processes not up to standard, reduce working accuracy, need timely the pressure roller after wearing and tearing to be changed.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of pressure roller and manufactures thermal process again, to increase the wear resistance of pressure roller, extends the work-ing life of pressure roller.
Technical problem to be solved by this invention realizes by the following technical solutions:
A kind of pressure roller manufactures thermal process again, comprises following processing step:
(1) process in early stage:
A) degreasing, oil removing;
B) eliminate rust: the rust of removing roller surface;
C) phosphatization: pressure roller can be prevented after phosphatization to be corroded, also can improve the coating of spraying and the sticking power of pressure roller;
D) sandblasting;
(2) spray: adopt supersonic velocity flame plating equipment spraying WC-12Co material to form coating;
(3) post-processed: surface diamond wheel is polished.
Spray parameters in described step (2) is: frock rotating speed is 150r/min; Flame distance is 12cm; Powder sending quantity control voltage is 6v, and flame temperature is 2500 DEG C; Spray gun translational speed is 0.03m/s;
Gas flow: air is 130L/H, oxygen is 30L/H, and propane is 25L/H;
Equipment gaseous tension: propane is not less than 0.5MPa, oxygen is not less than 0.4MPa, and air is not less than 0.6MPa, and hydrogen is not less than 0.1MPa, and nitrogen is not less than 0.2MPa.
The d of described step (1)) in more deeply adopt electric arc bottoming for surface damage, electric arc bottoming adopts the special silk of electric arc and nickel chromium triangle aluminium wire.
The d of described step (1)) in more deeply adopt surfacing bottoming for surface damage, surfacing bottoming adopts Ni60 silk.
Described WC-12Co material comprises the component of following mass percent: WC is 86.8%, Co is 12%, and trace element is 1.2%.
Described trace element comprises C, Si, Mo, Ti, Al.
The invention has the beneficial effects as follows: the present invention adopts WC-12Co material to make WC-12Co coating, solve traditional coating wear resistance poor, the problem that erosion resistance is lower, improve the microtexture of material surface coating, structure, thus the overall wear resisting property improving material surface, also there is significant effect to the comprehensive mechanical property improving improvement simultaneously, WC-12Co applies the coating on pressure roller by the present invention, improve the performance of pressure roller greatly, achieve manufacture again and the use of the pressure roller after wearing and tearing, reduce the cost of maintenance of the equipment, extend the work-ing life of pressure roller simultaneously.
Embodiment
The technique means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below the present invention being set forth further.
Embodiment one:
A kind of pressure roller manufactures thermal process again, comprises following processing step:
(1) process in early stage:
A) degreasing, oil removing;
B) eliminate rust: the rust of removing roller surface;
C) phosphatization: pressure roller can be prevented after phosphatization to be corroded, also can improve the coating of spraying and the sticking power of pressure roller;
D) sandblasting: more deeply adopt electric arc bottoming for surface damage, electric arc bottoming adopts the special silk of electric arc and nickel chromium triangle aluminium wire;
(2) spray: adopt supersonic velocity flame plating equipment spraying WC-12Co material to form coating;
(3) post-processed: surface diamond wheel is polished.
Spray parameters in described step (2) is: frock rotating speed is 150r/min; Flame distance is 12cm; Powder sending quantity control voltage is 6v, and flame temperature is 2500 DEG C; Spray gun translational speed is 0.03m/s;
Gas flow: air is 130L/H, oxygen is 30L/H, and propane is 25L/H;
Equipment gaseous tension: propane is not less than 0.5MPa, oxygen is not less than 0.4MPa, and air is not less than 0.6MPa, and hydrogen is not less than 0.1MPa, and nitrogen is not less than 0.2MPa.
Described WC-12Co material comprises the component of following mass percent: WC is 86.8%, Co is 12%, and trace element is 1.2%.
Described trace element comprises C, Si, Mo, Ti, Al.
Embodiment two:
A kind of pressure roller manufactures thermal process again, comprises following processing step:
(1) process in early stage:
A) degreasing, oil removing;
B) eliminate rust: the rust of removing roller surface;
C) phosphatization: pressure roller can be prevented after phosphatization to be corroded, also can improve the coating of spraying and the sticking power of pressure roller;
D) sandblasting: more deeply adopt surfacing bottoming for surface damage, surfacing bottoming adopts Ni60 silk;
(2) spray: adopt supersonic velocity flame plating equipment spraying WC-12Co material to form coating;
(3) post-processed: surface diamond wheel is polished.
Spray parameters in described step (2) is: frock rotating speed is 150r/min; Flame distance is 12cm; Powder sending quantity control voltage is 6v, and flame temperature is 2500 DEG C; Spray gun translational speed is 0.03m/s;
Gas flow: air is 130L/H, oxygen is 30L/H, and propane is 25L/H;
Equipment gaseous tension: propane is not less than 0.5MPa, oxygen is not less than 0.4MPa, and air is not less than 0.6MPa, and hydrogen is not less than 0.1MPa, and nitrogen is not less than 0.2MPa.
Described WC-12Co material comprises the component of following mass percent: WC is 86.8%, Co is 12%, and trace element is 1.2%.
Described trace element comprises C, Si, Mo, Ti, Al.
In order to prove actual effect of the present invention, the pressure roller after spy implements embodiment one and embodiment two by experiment detects.
The average data of detected result is as follows:
| Hardness (HRC) | Tensile strength (MPa) | Coating density (g/cm 3) |
| 74 | 66.8 | 14.7 |
From above-mentioned experimental data, the hardness being sprayed on the coating on pressure roller reaches HRC74, density 14.7g/cm
3, density is good, and tensile strength when coating is broken is 66.8MPa, and fracture mode is cement plane.
As can be seen here, after adopting the present invention, the performance of pressure roller can be improved greatly, realize manufacture again and the use of pressure roller, reduce the cost of the manufacturing, also extend the work-ing life of pressure roller, to improve the productivity effect of factory, ensure that the precision that copper sheet is suppressed and efficiency.
More than show and describe ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not by the restriction of step embodiment; the just principle of the present invention described in step embodiment and specification sheets; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (6)
1. pressure roller manufactures a thermal process again, it is characterized in that: comprise following processing step:
(1) process in early stage:
A) degreasing, oil removing;
B) eliminate rust;
C) phosphatization;
D) sandblasting;
(2) spray: adopt supersonic velocity flame plating equipment spraying WC-12Co material to form coating;
(3) post-processed: surface diamond wheel is polished.
2. a kind of pressure roller according to claim 1 manufactures thermal process again, it is characterized in that: the spray parameters in described step (2) is: frock rotating speed is 150r/min; Flame distance is 12cm; Powder sending quantity control voltage is 6v, and flame temperature is 2500 DEG C; Spray gun translational speed is 0.03m/s;
Gas flow: air is 130L/H, oxygen is 30L/H, and propane is 25L/H;
Equipment gaseous tension: propane is not less than 0.5MPa, oxygen is not less than 0.4MPa, and air is not less than 0.6MPa, and hydrogen is not less than 0.1MPa, and nitrogen is not less than 0.2MPa.
3. a kind of pressure roller according to claim 1 manufactures thermal process again, it is characterized in that: the d of described step (1)) in more deeply adopt electric arc bottoming for surface damage, electric arc bottoming adopts the special silk of electric arc and nickel chromium triangle aluminium wire.
4. a kind of pressure roller according to claim 1 manufactures thermal process again, it is characterized in that: the d of described step (1)) in more deeply adopt surfacing bottoming for surface damage, surfacing bottoming adopts Ni60 silk.
5. a kind of pressure roller according to claim 1 manufactures thermal process again, it is characterized in that: described WC-12Co material comprises the component of following mass percent: WC is 86.8%, Co is 12%, and trace element is 1.2%.
6. a kind of pressure roller according to claim 5 manufactures thermal process again, it is characterized in that: described trace element comprises C, Si, Mo, Ti, Al.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410603573.3A CN104451522A (en) | 2014-10-30 | 2014-10-30 | Hot process for remanufacturing compression roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410603573.3A CN104451522A (en) | 2014-10-30 | 2014-10-30 | Hot process for remanufacturing compression roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104451522A true CN104451522A (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410603573.3A Pending CN104451522A (en) | 2014-10-30 | 2014-10-30 | Hot process for remanufacturing compression roller |
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| Country | Link |
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| CN (1) | CN104451522A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831272A (en) * | 2015-05-09 | 2015-08-12 | 芜湖鼎瀚再制造技术有限公司 | Laser heat-treatment process for die |
| CN107779805A (en) * | 2017-10-22 | 2018-03-09 | 陈海银 | Stabilizing roller surface abrasion resistance, corrosion-resistant finishes preparation method |
| CN116200734A (en) * | 2023-03-14 | 2023-06-02 | 广东省科学院新材料研究所 | Method for improving corrosion resistance of tungsten carbide-cobalt coating, corrosion resistant coating and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1793423A (en) * | 2005-09-22 | 2006-06-28 | 上海宝钢设备检修有限公司 | Process for compound treating heat spraying and depositing welding and products thereof |
| CN101158013A (en) * | 2006-10-08 | 2008-04-09 | 徐州正菱涂装有限公司 | Pretreatment technique for steel member hot spraying |
| CN102343497A (en) * | 2011-11-23 | 2012-02-08 | 马鞍山市恒意机械有限责任公司 | Method for reconstructing surface of mill roll |
| CN103882364A (en) * | 2014-03-20 | 2014-06-25 | 安徽再制造技术研究院有限公司 | Hypersonic flame spraying remediation method for ferrous metallurgy roller component |
-
2014
- 2014-10-30 CN CN201410603573.3A patent/CN104451522A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1793423A (en) * | 2005-09-22 | 2006-06-28 | 上海宝钢设备检修有限公司 | Process for compound treating heat spraying and depositing welding and products thereof |
| CN101158013A (en) * | 2006-10-08 | 2008-04-09 | 徐州正菱涂装有限公司 | Pretreatment technique for steel member hot spraying |
| CN102343497A (en) * | 2011-11-23 | 2012-02-08 | 马鞍山市恒意机械有限责任公司 | Method for reconstructing surface of mill roll |
| CN103882364A (en) * | 2014-03-20 | 2014-06-25 | 安徽再制造技术研究院有限公司 | Hypersonic flame spraying remediation method for ferrous metallurgy roller component |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831272A (en) * | 2015-05-09 | 2015-08-12 | 芜湖鼎瀚再制造技术有限公司 | Laser heat-treatment process for die |
| CN107779805A (en) * | 2017-10-22 | 2018-03-09 | 陈海银 | Stabilizing roller surface abrasion resistance, corrosion-resistant finishes preparation method |
| CN116200734A (en) * | 2023-03-14 | 2023-06-02 | 广东省科学院新材料研究所 | Method for improving corrosion resistance of tungsten carbide-cobalt coating, corrosion resistant coating and application thereof |
| CN116200734B (en) * | 2023-03-14 | 2024-02-02 | 广东省科学院新材料研究所 | Method for improving corrosion resistance of tungsten carbide-cobalt coating, corrosion resistant coating and application thereof |
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Application publication date: 20150325 |
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