CN105297003A - Method for machining titanium-aluminum alloy ceramic lining - Google Patents
Method for machining titanium-aluminum alloy ceramic lining Download PDFInfo
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- CN105297003A CN105297003A CN201410348863.8A CN201410348863A CN105297003A CN 105297003 A CN105297003 A CN 105297003A CN 201410348863 A CN201410348863 A CN 201410348863A CN 105297003 A CN105297003 A CN 105297003A
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Abstract
The invention relates to a method for machining a titanium-aluminum alloy ceramic lining. The method for machining the titanium-aluminum alloy ceramic lining comprises the steps that 1, a steel pipe subjected to dust removal is clamped by a centrifugal machine, and the steel pipe is supported by a support; 2, reaction raw materials are evenly placed into the steel pipe, and the reaction raw materials include Fe2O3, Al, CrO3, Ni, Ti and B4C; and 3, the self-propagating reaction is triggered after the centrifugal machine rotates stably.
Description
Technical field
The present invention relates to the ceramic-lined working method of a kind of titanium aluminum alloy.
Background technology
Along with China's rapid development of economy, Cemented filling throughout oil field, coal, chemical industry, metallurgy, generating, the industry such as building materials.When the material that the abradabilityes such as pulverized coal conveying, sandstone, lime-ash in pipeline are large, there is the problem that pipe wear is fast; When carrying gas, the liquid or solid of strong corrosion in pipeline, there is pipeline and being corroded and the problem damaged; When conveying in pipeline has the material of comparatively high temps, also exist and use the expensive problem of heat resisting pipe.
Summary of the invention
The object of the invention is to provide a kind of titanium aluminum alloy ceramic-lined working method, can effectively improve transport pipe performance index, extends transport pipe work-ing life.
Realize the technical scheme of the object of the invention:
The ceramic-lined working method of a kind of titanium aluminum alloy, is characterized in that:
Step 1: the steel pipe after utilizing whizzer to clamp rust cleaning, and support steel pipe with support;
Step 2: reaction raw materials is put into steel pipe equably; Reaction raw materials used comprises Fe
2o
3, Al, CrO
3, Ni, Ti, B
4c;
Step 3: after whizzer spin stabilization, causes self-propagating reaction.
In step 2, raw materials usedly also comprise additive Na
2b
4o
7, Na
2siO
3.
In step 2, reaction raw materials is powder.
In step 2, the parts by weight shared by each reaction raw materials are, Fe
2o
3, Al resultant of reaction 32-49, CrO
3, Al resultant of reaction 16-21, Ni, Al resultant of reaction 14-23, Ti, B
4c resultant of reaction 16-27, additive Na
2b
4o
77-9, Na
2siO
31.5-2.5.
In step 2, the parts by weight shared by each reaction raw materials are, Fe
2o
3, Al resultant of reaction 49, CrO
3, Al resultant of reaction 17, Ni, Al resultant of reaction 15, Ti, B
4c resultant of reaction 19, additive Na
2b
4o
78, Na
2siO
32.
The beneficial effect that the present invention has:
The present invention selects distinctive reaction raw materials and weight proportion, by the self-propagating reaction of raw material, realizes the liner processing of pipeline.The liner performance index of the present invention's processing are as follows:
Air retaining wall hardness 1400-1800HV, transition layer hardness 490-650HV.
Shearing resistance 14-24 σ/MPa, crushing strength 360-420 σ/MPa.
Working method of the present invention is simple, easy to implement, with low cost, by significantly improving the performance index of liner, effectively extends the work-ing life of transport pipe.Utilize the composition of raw materials that the present invention relates to, utilize the composite steel tube of centrifugal self-propagating explained hereafter, mainly have the following advantages:
1, wear resistance is good: ceramic composite pipe air retaining wall hardness is high.Its air retaining wall hardness reaches 1400-1800HV, therefore all has high-wearing feature to the grindability medium that every profession and trade is carried.Confirm through industry park plan: its friction durability is ten times even tens times of hardened steel;
2, running resistance is little: ceramic composite pipe is better than any metallic conduit, clear water resistance coefficient 0.0193 due to internal surface smooth degree, and the running resistance of managing interior material is very little;
3, corrosion-resistant, good antiscale property: because pottery belongs to neutral substance, stable chemical performance, therefore has acid-and base-resisting corrodibility, and has anti-scaling property simultaneously;
4, heat resistance and thermal shock resistance good: multiple-unit tube normally can run for a long time in-50 ~ 900 DEG C of temperature ranges, has good thermostability;
5, construction costs is low: ceramic composite pipe quality is light, affordable.Lighter by 35% ~ 50% than the glass-ceramic tubre quality with internal diameter;
6, installation is convenient: because this pipe quality is light, and good welding performance, therefore can adopt the modes such as welding, flange, Quick-connection, construction install convenience, and can installation costs be reduced.
Accompanying drawing explanation
Fig. 1 is liner processing work schematic diagram of the present invention;
Fig. 2 is inner lining structure schematic diagram of the present invention.
Embodiment
The ceramic-lined working method of titanium aluminum alloy comprises the steps:
Step 1: as shown in Figure 1, the steel pipe 2 after utilizing whizzer 1 to clamp rust cleaning, and support steel pipe with support 4;
Step 2: reaction raw materials 3 is put into steel pipe equably; Reaction raw materials used is Fe
2o
3, Al, CrO
3, Ni, Ti, B
4c; Additive Na
2b
4o
7, Na
2siO
3.
Step 3: after whizzer 1 spin stabilization, reaction raw materials causes self-propagating reaction.Reaction equation is as follows:
Fe
2O
3+2Al——2Fe+Al
2O
3+836KJ
CrO
3+2Al——Cr+Al
2O
3+1094KJ
3Ti+B
4C——2TiB
2+TiC+Q
Ni+Al——NiAl
After having reacted, treat that steel pipe cools, namely achieve liner processing.
In step 2, reaction raw materials is powder, as shown in the table:
| Raw material | Granularity | Molecular weight | Purity % |
| Fe 2O 3 | 325 | 160 | 99 |
| CrO 3 | 150 | 12.01 | 99 |
| Al | 200 | 26.98 | 98 |
| Ti | 300 | 47.9 | 99.5 |
| B 4C | 1000 | 56 | 99 |
| Ni | 325 | 58.6 | 99 |
| SiO 2 | 200 | 60.08 | 99 |
| Na 2B 4O 7 | 200 | 281.37 | 99 |
Part by weight shared by each reaction raw materials is as follows:
That is, Fe
2o
3, Al resultant of reaction parts by weight 49 (i.e. Fe
2o
3and with the Al of its complete reaction, shared parts by weight are 49), CrO
3, Al resultant of reaction parts by weight 17, Ti, B
4c resultant of reaction parts by weight 19, Ni, Al resultant of reaction parts by weight 15.
As shown in Figure 2, the multiple-unit tube after liner processing is radially followed successively by matrix metal 5, fusion area 6, intermediate metal 7, TiC mixing zone 8, Al
2o
3+ TiC
2complex phase ceramic layer 9.Al
2o
3---TiC
2complex phase ceramic is organized as obvious dendroid pattern and is playing grain boundaries formation Al
2o
3.TiC
2phase, intermediate metal is primarily of Al, Cr, Fe, Fe
3c, NiFe, AlFe metallic compound and a certain amount of free Fe composition.Fusion area main component is Fe, and matrix skin melts and forms metallurgical binding by the high temperature that reaction generates.
Transition layer (At%) main component
| Element | C | B | Al | Ti | Cr | Fe | Ni |
| Dendrite phase | 16.65 | 9.01 | 2.54 | 1.73 | 4.71 | 58.34 | 1.21 |
| Matrix phase | 10.55 | 0.61 | 17.61 | 58.48 | 11.14 |
TiC mixing zone (At%) main component
Al
2o
3---TiC
2complex phase ceramic layer (At%): Al
2o
3:>=90
Claims (5)
1. the ceramic-lined working method of titanium aluminum alloy, is characterized in that:
Step 1: the steel pipe after utilizing whizzer to clamp rust cleaning, and support steel pipe with support;
Step 2: reaction raw materials is put into steel pipe equably; Reaction raw materials used comprises Fe
2o
3, Al, CrO
3, Ni, Ti, B
4c;
Step 3: after whizzer spin stabilization, causes self-propagating reaction.
2. the ceramic-lined working method of titanium aluminum alloy according to claim 1, is characterized in that: in step 2, raw materials usedly also comprises additive Na
2b
4o
7, Na
2siO
3.
3. the ceramic-lined working method of titanium aluminum alloy according to claim 1, it is characterized in that: in step 2, reaction raw materials is powder.
4. the ceramic-lined working method of titanium aluminum alloy according to claim 3, is characterized in that: in step 2, and the parts by weight shared by each reaction raw materials are, Fe
2o
3, Al resultant of reaction 32-49, CrO
3, Al resultant of reaction 16-21, Ni, Al resultant of reaction 14-23, Ti, B
4c resultant of reaction 16-27, additive Na
2b
4o
77-9, Na
2siO
31.5-2.5.
5. the ceramic-lined working method of titanium aluminum alloy according to claim 4, is characterized in that: in step 2, and the parts by weight shared by each reaction raw materials are, Fe
2o
3, Al resultant of reaction 49, CrO
3, Al resultant of reaction 17, Ni, Al resultant of reaction 15, Ti, B
4c resultant of reaction 19, additive Na
2b
4o
78, Na
2siO
32.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410348863.8A CN105297003A (en) | 2014-07-15 | 2014-07-15 | Method for machining titanium-aluminum alloy ceramic lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410348863.8A CN105297003A (en) | 2014-07-15 | 2014-07-15 | Method for machining titanium-aluminum alloy ceramic lining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105297003A true CN105297003A (en) | 2016-02-03 |
Family
ID=55194796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410348863.8A Pending CN105297003A (en) | 2014-07-15 | 2014-07-15 | Method for machining titanium-aluminum alloy ceramic lining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105297003A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844037A (en) * | 2006-04-30 | 2006-10-11 | 太原理工大学 | Multi-layered composite tube with ceramic lining and preparation method thereof |
| CN103572285A (en) * | 2013-07-17 | 2014-02-12 | 扬州巨业耐磨复合材料有限责任公司 | Method for processing ceramic lining composite steel pipe |
-
2014
- 2014-07-15 CN CN201410348863.8A patent/CN105297003A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844037A (en) * | 2006-04-30 | 2006-10-11 | 太原理工大学 | Multi-layered composite tube with ceramic lining and preparation method thereof |
| CN103572285A (en) * | 2013-07-17 | 2014-02-12 | 扬州巨业耐磨复合材料有限责任公司 | Method for processing ceramic lining composite steel pipe |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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: 20160203 |