CN103898435A - Method for repairing surface cracks of titanium alloy plate - Google Patents
Method for repairing surface cracks of titanium alloy plate Download PDFInfo
- Publication number
- CN103898435A CN103898435A CN201410124772.6A CN201410124772A CN103898435A CN 103898435 A CN103898435 A CN 103898435A CN 201410124772 A CN201410124772 A CN 201410124772A CN 103898435 A CN103898435 A CN 103898435A
- Authority
- CN
- China
- Prior art keywords
- titanium alloy
- alloy plate
- spraying
- clean
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Metal Rolling (AREA)
Abstract
The invention provides a method for repairing surface cracks of a titanium alloy plate. The method comprises the following steps: cleaning the surface of the titanium alloy plate and ensuring that the surface of the plate is clean and flat; performing surface sandblasting on the titanium alloy plate treated in the last step previously by using 16-40# brown fused alumina sand so that the surface roughness is 20-40 microns, and keeping the surface clean and free of oil stains; evenly spraying aluminum wires on the surface of a plate blank by using a spraying apparatus; determining that the coating of the coated titanium alloy plate is well bonded with the substrate, the average bonding strength is greater than or equal to 10MPa and inlaying physical bonding is mainly adopted; obtaining the improved titanium alloy plate. The method is applied to the production and treatment processes of the titanium alloy and other similar high-strength low-ductility plates; due to the adopted method, the amount of grinding can be effectively reduced; besides, the method has the advantages of low cost and easiness for operation, and is capable of meeting the requirements of batch production.
Description
[technical field]
The present invention relates to a kind of improvement method of titanium alloy plate surface crack, especially relate to a kind of low cost and improve the method for titanium alloy plate surface crack.
[background technology]
Known, titanium is divided into pure titanium and titanium alloy, namely having added other alloying element is titanium alloy, independently titanium elements is that pure titanium " comprises the inevitable impurity of some deniers " in pure titanium, can be divided into alpha titanium alloy and nearly α type alloy, (alpha+beta) type alloy, nearly β type alloy and β type alloy according to the difference of titanium alloy component and room temperature texture; It is good that titanium alloy plate has solidity to corrosion, and specific tenacity is high, nonmagnetic, and biocompatibility is high, and less to hyperacoustic impedance, acoustical transmission factor is higher, a series of good characteristics that have important use value such as storage hydrogen and preferably shape memory function; Due to the aforementioned advantages of titanium alloy plate, titanium alloy plate is used widely at numerous areas such as aerospace, petrochemical complex, health care, automobile, building and boats and ships.
But the plasticity of titanium alloy plate is poor, when distortion, easily cracks; In the production cycle of titanium alloy plate, crackle reconditioning expends time in more, have even account for whole titanium alloy plate chief engineer time 50%; Traditional method is by the processing that strips off the skin of half-finished titanium alloy plate, to guarantee the timely removal of crackle and prevent the expansion of follow-up crackle, also there is the method that adopts explosive-clad in producer with good conditionsi, with the method for blast, at the coated pure titanium of one deck in the surface of titanium alloy plate slab, can effectively reduce generation and the heredity of crackle.
And traditional grinding method shortcoming is more, as long in the duration, polishing operating mode is severe, finished product is must material rate low, in view of the restriction of above-mentioned factor, so be more and more difficult to meet the demand of batch production; And the method for explosive-clad on the one hand cost is higher, conditional request is comparatively harsh to external world on the other hand, such as the special explosive-clad producer of needs, good weather, suitable blast site etc., has also restricted the batch production of titanium alloy plate.
[summary of the invention]
The deficiency existing for overcoming prior art, the invention provides a kind of method of improving titanium alloy plate surface crack, and the present invention is suitable for the process of manufacture of titanium alloy and other similar high-strength inductile sheet materials; The finished product and the semifinished sheet that adopt processing method disclosed by the invention to produce, surface crack obviously reduces, and can effectively reduce reconditioning quality, shortens the production friendship phase, and the present invention has low cost, the advantage of easy handling, the demand of applicable batch production.
For achieving the above object, the present invention adopts following technical scheme:
A method of improving titanium alloy plate surface crack, comprises the steps:
1), titanium alloy plate surface treatment:
By clean titanium alloy plate removing surface, guarantee that plate surface is clean, smooth;
2), titanium alloy plate surface sand-blasting:
Use 16～40# corundum sand to carry out surface sand-blasting to titanium alloy plate the titanium alloy plate of previous step, surfaceness 20～40 μ m, keep surface cleaning, without greasy dirt;
3), surface spraying:
Use spraying equipment that aluminium wire is evenly sprayed into steel slab surface, coating thickness is between 0.1～0.3mm;
4), inspection:
Titanium alloy plate coating after confirmation spraying is combined with matrix well, and average bonding strength >=10MPa, taking inserted physical bond as main; Obtain the titanium alloy plate after improvement.
The described method of improving titanium alloy plate surface crack, comprises and accepts plane, milling, polishing surface in the removing surface of titanium alloy plate described in step 1.
The described method of improving titanium alloy plate surface crack, comprises electric arc spraying, flame plating in spraying described in step 3.
Owing to having adopted technique scheme, of the present invention have a following beneficial effect:
The method of improving titanium alloy plate surface crack of the present invention, adopts the new titanium alloy steel slab surface treatment technology from wound, and operational path is reliable and stable, good quality of product; Compared with the present invention is coated with conventional titanium alloy plate surface:
One, save material; Existing titanium alloy slab surface is coated, needs 1.0 ~ 1.5mm titanium plate as cladding plate, after rolling, removes again by reconditioning; Present method is by spraying 0.1 ~ 0.3mm aluminium powder, and substitution list bread covers, and saves starting material 85%.
Two, reduce costs, 2 1.0 ~ 1.5mm titanium plates are converted to the Al silk of 1.08Kg left and right, cost of raw and processed materials is saved approximately 1.8 yuan/Kg; Meanwhile, use spraying to replace explosive-clad, save approximately 8 yuan/Kg of starting material processing charges.
[brief description of the drawings]
Fig. 1 is the titanium alloy plate condition of surface photo not spraying;
Fig. 2 adopts the rear titanium alloy plate steel slab surface state photo of technique spraying of the present invention;
[embodiment]
Can explain in more detail the present invention by the following examples, the present invention is not limited to the following examples, discloses object of the present invention and is intended to protect all changes and improvements in the scope of the invention;
A method of improving titanium alloy plate surface crack, comprises the steps:
1), titanium alloy plate surface treatment:
By clean titanium alloy plate removing surface, use plane, milling, polishing surface, guarantee that plate surface is clean, smooth;
2), titanium alloy plate surface sand-blasting:
Use 16～40# corundum sand to carry out surface sand-blasting to titanium alloy plate the titanium alloy plate of previous step, surfaceness 20～40 μ m, keep surface cleaning, without greasy dirt;
3), surface spraying:
Use electric arc spraying, flame plating equipment that aluminium wire is evenly sprayed into steel slab surface, coating thickness is between 0.1～0.3mm;
4), inspection:
Titanium alloy plate coating after confirmation spraying is combined with matrix well, and average bonding strength >=10MPa, taking inserted physical bond as main; Obtain the titanium alloy plate after improvement.
after the application of the invention techniquetest and comparison:
When removing surface, guarantee that plate surface is clean, smooth, can accept plane, milling, polishing surface and realize; Use 16 ~ 40# corundum sand to carry out surface sand-blasting, surfaceness 20 ~ 40 μ m, keep surface cleaning, without greasy dirt; Use electric arc spraying, flame plating equipment that aluminium wire is evenly sprayed into steel slab surface, coating thickness is 0.1 ~ 0.3mm; Coating is combined with matrix well, and average bonding strength >=10MPa, taking inserted physical bond as the main titanium alloy plate obtaining after improvement.
Titanium alloy plate hot rolling by after improving: 1. roughing: 700～800 DEG C of charging temperatures, 1000～1100 DEG C of Heating temperatures, calculate heat-up time with 1.7 ± 0.2min/mm, and rolling process becomes 84%, pass deformation rate 8～20%; 2. cut; Use emery wheel and sized flap wheel effects on surface defect to carry out grinding process.
Adopt above-mentioned processing method to prepare 20*860*1050mm sheet material, Bian Bu deep torn grain district crack depth 0.55mm, middle checking district crack depth 0.41mm.
Contrast 1:
The untreated slab in 1 and 2 surface contrasts by reference to the accompanying drawings, chooses the slab of same specification, adopts same heating, rolling and technique for grinding.
Contrast 2:
Contrast with coated rear slab, choose the slab of same specification, be coated processing.Adopt same heating, rolling and technique for grinding.
Can find out that by accompanying drawing technique of the present invention has clear superiority.
Different treatments plate surface crack depth contrast in following table
Through contrast, through the slab of spray treatment, the surface crack degree of depth is similar with coated rear slab, is better than common untreated slab, and cost is saved respectively 1.7 yuan/Kg and 4.2 yuan/Kg.
Part not in the detailed description of the invention is prior art.
Claims (3)
1. a method of improving titanium alloy plate surface crack, is characterized in that: comprise the steps:
1), titanium alloy plate surface treatment:
By clean titanium alloy plate removing surface, guarantee that plate surface is clean, smooth;
2), titanium alloy plate surface sand-blasting:
Use 16～40# corundum sand to carry out surface sand-blasting to titanium alloy plate the titanium alloy plate of previous step, surfaceness 20～40 μ m, keep surface cleaning, without greasy dirt;
3), surface spraying:
Use spraying equipment that aluminium wire is evenly sprayed into steel slab surface, coating thickness is between 0.1～0.3mm;
4), inspection:
Titanium alloy plate coating after confirmation spraying is combined with matrix well, and average bonding strength >=10MPa, taking inserted physical bond as main; Obtain the titanium alloy plate after improvement.
2. the method for improving titanium alloy plate surface crack according to claim 1, is characterized in that: comprise and accept plane, milling, polishing surface in the removing surface of titanium alloy plate described in step 1.
3. the method for improving titanium alloy plate surface crack according to claim 1, is characterized in that: comprise electric arc spraying, flame plating in spraying described in step 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410124772.6A CN103898435A (en) | 2014-03-31 | 2014-03-31 | Method for repairing surface cracks of titanium alloy plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410124772.6A CN103898435A (en) | 2014-03-31 | 2014-03-31 | Method for repairing surface cracks of titanium alloy plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103898435A true CN103898435A (en) | 2014-07-02 |
Family
ID=50989999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410124772.6A Pending CN103898435A (en) | 2014-03-31 | 2014-03-31 | Method for repairing surface cracks of titanium alloy plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103898435A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057355A (en) * | 2015-07-29 | 2015-11-18 | 洛阳双瑞精铸钛业有限公司 | Method for reducing surface cracks of titanium alloy boards after heating once and rolling |
| CN107164714A (en) * | 2017-04-28 | 2017-09-15 | 广西大学 | A kind of method for repairing and mending containing titanium composite panel |
| CN114606456A (en) * | 2022-03-13 | 2022-06-10 | 兰州交通大学 | Method for spraying aluminum metal layer on surface of titanium alloy plate based on stud welding |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392380A (en) * | 2008-10-24 | 2009-03-25 | 中北大学 | Magnesium alloy vehicle wheel surface treatment method and magnesium alloy vehicle wheel |
| CN102181816A (en) * | 2011-03-23 | 2011-09-14 | 西安交通大学 | Method for increasing bonding strength of titanium or titanium alloy ceramic restoration |
| CN102268626A (en) * | 2010-06-01 | 2011-12-07 | 上海工程技术大学 | Method for metal surface modification |
| CN102534459A (en) * | 2011-12-14 | 2012-07-04 | 中国航空工业集团公司北京航空材料研究院 | Method for preparing titanium-fire-prevention coating |
-
2014
- 2014-03-31 CN CN201410124772.6A patent/CN103898435A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392380A (en) * | 2008-10-24 | 2009-03-25 | 中北大学 | Magnesium alloy vehicle wheel surface treatment method and magnesium alloy vehicle wheel |
| CN102268626A (en) * | 2010-06-01 | 2011-12-07 | 上海工程技术大学 | Method for metal surface modification |
| CN102181816A (en) * | 2011-03-23 | 2011-09-14 | 西安交通大学 | Method for increasing bonding strength of titanium or titanium alloy ceramic restoration |
| CN102534459A (en) * | 2011-12-14 | 2012-07-04 | 中国航空工业集团公司北京航空材料研究院 | Method for preparing titanium-fire-prevention coating |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057355A (en) * | 2015-07-29 | 2015-11-18 | 洛阳双瑞精铸钛业有限公司 | Method for reducing surface cracks of titanium alloy boards after heating once and rolling |
| CN107164714A (en) * | 2017-04-28 | 2017-09-15 | 广西大学 | A kind of method for repairing and mending containing titanium composite panel |
| CN114606456A (en) * | 2022-03-13 | 2022-06-10 | 兰州交通大学 | Method for spraying aluminum metal layer on surface of titanium alloy plate based on stud welding |
| CN114606456B (en) * | 2022-03-13 | 2023-12-22 | 兰州交通大学 | Method for spraying aluminum metal layer on surface of titanium alloy plate based on stud welding |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106826535B (en) | Aluminum alloy mirror surface processing method | |
| CN103600284B (en) | A kind of superfine processing method with thin-walled large curved surface metal parts | |
| CN102211270A (en) | Process for manufacturing high-precision titanium and titanium alloy tube | |
| CN104353599B (en) | The method of a kind of glass ball process steel aviation part rust preventive coating | |
| CN110904361B (en) | Preparation method of nickel-based alloy composite powder and cladding coating for plasma spraying | |
| CN103898435A (en) | Method for repairing surface cracks of titanium alloy plate | |
| CN100400216C (en) | Titanium steel composite material defect repair method | |
| CN104400567A (en) | Super-mirror polishing method of metal plate | |
| CN108274308A (en) | A kind of titanium alloy rotation body surface insulation mirror polishing method | |
| CN105397266A (en) | Explosive welding method for pre-processing rare and precious metal composite plate through severe surface deformation | |
| CN108913867B (en) | Method and system for continuously producing aluminum/stainless steel composite material | |
| CN102501028A (en) | Method for manufacturing zirconium elbow | |
| CN104911587A (en) | Shell body of electronic product and processing method thereof | |
| CN110923610B (en) | Preparation method of cobalt-based alloy composite powder and cladding coating for plasma spraying | |
| CN104551154A (en) | PCD cutter with high performance | |
| CN102505104B (en) | Magnesium alloy surface pretreatment method | |
| CN105196422A (en) | Granite plate processing technology | |
| CN101966766A (en) | Multi-layer metal cold-pressing compounding technology and product thereof | |
| CN102205430A (en) | Method for processing surface of 3C (computer, communication and consumer) electronic product panel | |
| CN106216947A (en) | A kind of production method of big thickness flaw detection steel plate | |
| CN114645304A (en) | Aluminum alloy profile surface wood grain pattern forming method and aluminum alloy profile | |
| CN112877638A (en) | Preparation process flow of high-speed electric arc spraying coating | |
| CN111975297B (en) | Preparation and rolling post-treatment strengthening process for high-energy micro-arc deposition layer on copper alloy surface | |
| CN103506259A (en) | Fluorocarbon spraying technology of surface of aluminum alloy hub | |
| CN106756718A (en) | A kind of wear-resistant coating spraying coating process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140702 |