CN104388879A - Remanufacturing process of stirring block - Google Patents
Remanufacturing process of stirring block Download PDFInfo
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- CN104388879A CN104388879A CN201410604239.XA CN201410604239A CN104388879A CN 104388879 A CN104388879 A CN 104388879A CN 201410604239 A CN201410604239 A CN 201410604239A CN 104388879 A CN104388879 A CN 104388879A
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Abstract
The invention relates to a remanufacturing process of a stirring block. The remanufacturing process comprises the following process steps: (1) performing pre-treatment: a) clearing residual concrete to remove the residual concrete on the surface of the stirring block; b) derusting: removing rust on the surface of the stirring block; c) phosphating to prevent the stirring block from being corroded and improve the adhesion between a sprayed coating and the stirring block; and d) sand-blasting; (2) spraying: spraying a Ni-Gr-B coating by a high velocity oxy-fuel spraying device; and (3) performing post-treatment: customizing a polishing belt for polishing treatment. According to the remanufacturing process provided by the invention, the Ni-Gr-B coating is adopted, so that the problems of relatively poor wear resistance and relatively low corrosion resistance of the existing coating are solved, and the microstructure of the coating on the surface of a material is improved; and by adding trace elements, the hardness of the coating is improved by 40%, the elastic modulus is improved by 13%, and thus the wear resistance on the surface of the material is improved integrally. The service life of the stirring block is effectively prolonged, the number of times of maintenance is reduced, and the maintenance cost is saved.
Description
Technical field
The present invention relates to re-manufacturing technology field, specifically a kind of stirring block manufacturing process again.
Background technology
Concrete mixer cement, sandstone aggregate and water is mixed also mixing become the machinery of concrete mixture.Concrete mixer after usage, needs to clean it, mainly removes the concrete remaining in stirrer inside, if the concrete long time does not remove, will have a strong impact on the work of stirrer, even cause it to work.Stir block as the major part stirred, have vital effect, stir block after using for a long time, surface abrasion is serious, so in order to ensure mixing quality, often needs to repair it, namely stirring block is manufactured again, thus reach the effect extending and stir block work-ing life.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of stirring block manufacturing process again.
A kind of stirring block manufacturing process again, comprises following processing step:
(1) process in early stage:
A) residual concrete is cleared up; The concrete of block remained on surface is stirred in removing;
B) eliminate rust; The rust on block surface is stirred in removing;
C) phosphatization; Can prevent from stirring block after phosphatization to be corroded, also can improve the coating of spraying and the sticking power stirring block;
D) sandblasting;
(2) spray: adopt supersonic velocity flame plating equipment spraying Ni-Gr-B coating;
(3) post-processed: customization sand belt polished finish.
Spray parameters in described step (2) is: frock rotating speed is 240r/min; Flame distance is 30cm; Powder sending quantity control voltage is 5v, and flame temperature is 2300 DEG C, and spray gun translational speed is 0.01m/s;
Gas flow: air is 120L/H, oxygen is 35L/H, and propane is 30L/H;
Equipment gaseous tension: propane pressure is not less than 0.5MPa; Oxygen pressure is not less than 0.4MPa; Air pressure is not less than 0.6MPa; Hydrogen pressure is not less than 0.1MPa, and nitrogen pressure is not less than 0.2MPa.
The Ni-Gr-B coating of spraying comprises following component in described step (2): Ni is 20%, Gr be 33%, B is 44.77%, and trace element is 0.23%, and auxiliary agent is 2%.
Described auxiliary agent is CBN, because material hardness is not high, so increase auxiliary agent thus improve hardness.
Described trace element comprises Co, Mo, Si.
The invention has the beneficial effects as follows: the present invention adopts Ni-Gr-B coating, solve the problem that existing coating abrasion performance is poor, erosion resistance is lower, improve the microtexture of material surface coating, adding trace element makes coating hardness improve 40%, Young's modulus improves 13%, thus the overall wear resisting property improving material surface.Effectively extend the work-ing life of stirring block, decrease the number of times of maintenance, save maintenance cost.
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:
(1) process in early stage:
A) residual concrete is cleared up; The concrete of block remained on surface is stirred in removing;
B) eliminate rust; The rust on block surface is stirred in removing;
C) phosphatization; Can prevent from stirring block after phosphatization to be corroded, also can improve the coating of spraying and the sticking power stirring block;
D) sandblasting;
(2) spray: adopt supersonic velocity flame plating equipment spraying Ni-Gr-B coating;
Spray parameters in described step (2) is: frock rotating speed is 240r/min; Flame distance is 30cm; Powder sending quantity control voltage is 5v, and flame temperature is 2300 DEG C, and spray gun translational speed is 0.01m/s;
Gas flow: air is 120L/H, oxygen is 35L/H, and propane is 30L/H;
Equipment gaseous tension: propane pressure is not less than 0.5MPa; Oxygen pressure is not less than 0.4MPa; Air pressure is not less than 0.6MPa; Hydrogen pressure is not less than 0.1MPa, and nitrogen pressure is not less than 0.2MPa.
The Ni-Gr-B coating of spraying comprises following component in described step (2): Ni is 20%, Gr be 33%, B is 44.77%, and trace element is 0.23%, and auxiliary agent is 2%.
Described auxiliary agent is CBN, because material hardness is not high, so increase auxiliary agent thus improve hardness.
Described trace element comprises Co, Mo, Si.
(3) post-processed: customization sand belt polished finish.
In order to prove actual effect of the present invention, the stirring block after spy implements embodiment one by experiment detects, and the data of detected result are as follows:
| Hardness (HRC) | Dense structure's degree | Coating density (g/cm 3) | Coat-thickness (mm) |
| 58 | 0.74 | 9.96 | 2 |
From above-mentioned experimental data, the hardness being sprayed on the coating stirred on block reaches HRC58, and coat-thickness can reach 2 millimeters, and the bonding strength of coating is better, and the density of tissue better can reach 0.74, and coating density can reach 9.96g/cm
3.
As can be seen here, after adopting the present invention, the performance stirring block can be improved greatly, realize manufacture again and the use of stirring block, reduce the cost of the manufacturing, also extend the work-ing life of stirring block.
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 (5)
1. stir a block manufacturing process again, it is characterized in that: comprise following processing step:
(1) process in early stage:
A) residual concrete is cleared up;
B) eliminate rust;
C) phosphatization;
D) sandblasting;
(2) spray: adopt supersonic velocity flame plating equipment spraying Ni-Gr-B coating;
(3) post-processed: customization sand belt polished finish.
2. one according to claim 1 stirs block manufacturing process again, it is characterized in that: the spray parameters in described step (2) is: frock rotating speed is 240r/min; Flame distance is 30cm; Powder sending quantity control voltage is 5v, and flame temperature is 2300 DEG C, and spray gun translational speed is 0.01m/s;
Gas flow: air is 120L/H, oxygen is 35L/H, and propane is 30L/H;
Equipment gaseous tension: propane pressure is not less than 0.5MPa; Oxygen pressure is not less than 0.4MPa; Air pressure is not less than 0.6MPa; Hydrogen pressure is not less than 0.1MPa, and nitrogen pressure is not less than 0.2MPa.
3. one according to claim 1 stirs block manufacturing process again, it is characterized in that: the Ni-Gr-B coating of spraying comprises following component in described step (2): Ni is 20%, Gr be 33%, B is 44.77%, trace element is 0.23%, and auxiliary agent is 2%.
4. one according to claim 3 stirs block manufacturing process again, it is characterized in that: described auxiliary agent is CBN.
5. one according to claim 3 stirs block manufacturing process again, it is characterized in that: described trace element comprises Co, Mo, Si.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410604239.XA CN104388879B (en) | 2014-10-30 | 2014-10-30 | A kind of stirring block remanufactures technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410604239.XA CN104388879B (en) | 2014-10-30 | 2014-10-30 | A kind of stirring block remanufactures technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104388879A true CN104388879A (en) | 2015-03-04 |
| CN104388879B CN104388879B (en) | 2017-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410604239.XA Active CN104388879B (en) | 2014-10-30 | 2014-10-30 | A kind of stirring block remanufactures technique |
Country Status (1)
| Country | Link |
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| CN (1) | CN104388879B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08253855A (en) * | 1995-03-14 | 1996-10-01 | Suruzaa Meteko Japan Kk | Formation of coating film onto boiler tube |
| CN1900543A (en) * | 2006-07-03 | 2007-01-24 | 藤长宽 | Use of spray process in motor regulating center bearing base inner surface |
| CN101469397A (en) * | 2007-12-26 | 2009-07-01 | 徐州正菱涂装有限公司 | Metal thermal spraying production line |
-
2014
- 2014-10-30 CN CN201410604239.XA patent/CN104388879B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08253855A (en) * | 1995-03-14 | 1996-10-01 | Suruzaa Meteko Japan Kk | Formation of coating film onto boiler tube |
| CN1900543A (en) * | 2006-07-03 | 2007-01-24 | 藤长宽 | Use of spray process in motor regulating center bearing base inner surface |
| CN101469397A (en) * | 2007-12-26 | 2009-07-01 | 徐州正菱涂装有限公司 | Metal thermal spraying production line |
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| Publication number | Publication date |
|---|---|
| CN104388879B (en) | 2017-03-08 |
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