CN101456725A - Composite bend steel tube of internal lining integral ceramic and preparation technology thereof - Google Patents
Composite bend steel tube of internal lining integral ceramic and preparation technology thereof Download PDFInfo
- Publication number
- CN101456725A CN101456725A CNA200910042421XA CN200910042421A CN101456725A CN 101456725 A CN101456725 A CN 101456725A CN A200910042421X A CNA200910042421X A CN A200910042421XA CN 200910042421 A CN200910042421 A CN 200910042421A CN 101456725 A CN101456725 A CN 101456725A
- Authority
- CN
- China
- Prior art keywords
- steel tube
- integral ceramic
- composite
- internal lining
- ceramic
- 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
Abstract
The invention aims to provide a composite bending steel pipe lined with integrated ceramic and preparation technology thereof. The steel pipe adopts the following formula: 70 to 90 percent of alumina, 3 to 7 percent of barium carbonate, 3 to 5 percent of crystal whisker, 1 to 8 percent of talcum, 1 to 5 percent of Suzhou clay, and 2 to 5 percent of chromium oxide. Working procedures such as material distribution, ball milling, squeezing, vacuum pugging, molding, sintering and compounding can be adopted. The wear resistance of the composite bending steel pipe is 5 to 6 times of that of a patch ceramic bending pipe and is 10 to 20 times of that of a high-chromium cast iron bending steel pipe, the wear loss is less than or equal to 0.015 percent, the water absorbing capacity is less than 0.02 percent, the Mohs hardness is between 8 and 9, and the composite bending steel pipe can bear the high temperature of 800 DEG C for a long time, is acid-resistant and alkali-resistant, and has the service life of between 12 and 18 years.
Description
Technical field
The present invention relates to a kind of composite bend steel tube of internal lining integral ceramic and the method for technology of preparing thereof.
Background technology
Abrasion-proof bent tube in the mine, metallurgy, chemical industry and industries such as electric power and mixed earth conveying have very widely and use, in its steel pipe normal in matrix materials such as diabase lining, steel alloy, chip ceramic and rubber.Because cast stone; the wear resistance of steel alloy and rubber is limited; use the composite bend steel tube of chip ceramic now mostly; but because the chip ceramic composite bend steel tube exists very big slit is arranged between the ceramic paster; had a strong impact on its wear resistance; ceramic paster is that the employing inorganic glue directly sticks on the steel pipe or the employing pottery sticks on the rubber simultaneously; rubber is compound by sulfurization technology and steel pipe again; this usually can cause paster to come off because inorganic glue lost efficacy; also influenced the wear resistance of bend steel tube; in some specific installations, need bend steel tube can bear 400 ℃ of-800 ℃ of high temperature; but the highest high temperature that can only bear 300 ℃ of the inorganic glue of chip ceramic; it can't be used in higher temperature environment; also have some to need the industry of acid-fast alkali-proof, the chip ceramic bend steel tube also can't be competent at.Employing " 863 " novel material plan and country's new and high technology of applying of the enforcement period of the ninth five-year plan emphasis-spread the certainly lined ceramics composite steel tube that method is produced is arranged on the market in addition, its feature is that speed of response is fast, advantages such as pipe shape is unrestricted, but also exist because very fast from spreading the method speed of response, react uncontrollable, the shortcoming that the alumina layer of preparing is loose porous, this has reduced the wear resisting property of composite steel tube, and its actual wear-resisting effect also is restricted.Also have producer to adopt dried shrimp joint technology that vitrified pipe one is served as a contrast inside at steel pipe successively, equally inevitably appear at the vitrified pipe junction and have the slit, had a strong impact on the wear resistance of vitrified pipe, can not carry mordant fluid simultaneously.
In order thoroughly to solve the Wear-resistant, high-temperature resistant acid-fast alkali-proof problem of bend pipe, only at global formation ceramic bend pipe of the inside of bend steel tube lining.The relevant report that does not now also have the composite bend steel tube of internal lining integral ceramic.
Summary of the invention
The object of the present invention is to provide a kind of composite bend steel tube and technology of preparing thereof of internal lining integral ceramic.The composite bend steel tube wear resistance is 5-6 times of chip ceramic bend pipe, is 10-20 times of rich chromium cast iron bend steel tube, wear loss≤0.015%, water-intake rate＜0.02%, hardness Mohs 8-9 can bear 800 ℃ high temperature for a long time, acidproof and alkaline-resisting, work-ing life was in 12-18 years.
Technical scheme of the present invention is: the composite bend steel tube of internal lining integral ceramic and technology of preparing thereof is characterized in that adopting following prescription and processing step:
(1) integral ceramic prescription (in weight ratio)
Integral ceramic prescription: aluminum oxide 70-90%, barium carbonate 3-7%, whisker 3-5%, talcum 1-8%, Suzhou soil 1-5%, chromic oxide 2-5%;
(2) technical process
Technical process 1.
A, batching.Aluminum oxide, barium carbonate, whisker, talcum, Suzhou soil and chromic oxide are required batching in proportion;
B, ball milling.To carry out ball milling, material in the adding of the ceramic raw material in the A step ball mill: ballstone: water=1:2:0.8,10-20 hours ball milling time, and sieve and deironing, make ceramic size;
C, press filt.The ceramic size process slip drying press dehydration of above-mentioned B step preparation is obtained mud cake;
D, vacuum pugging.The mud cake adding pug mill of C step is carried out vacuum pugging, and old 48-60h, old mud section obtained;
E, moulding.The old mud section of D step gained is added extrusion forming in the tube extruding machine, obtain integral ceramic bend pipe wet green, behind the 48h that dries in the shade, put into 60 ℃ of-120 ℃ of baking ovens drier 12 hours, obtain integral ceramic bend pipe dried;
F, sintering.Gained integral ceramic bend pipe dried in the E step is put into kiln carry out sintering, heat up,, obtain the integral ceramic bend pipe 1350 ℃ of-1600 ℃ of hot stages insulations 3 hours with 5 ℃ of-10 ℃/min heat-up rates;
G, compound.Outside the integral ceramic bend pipe, coat one deck steel pipe, just obtain internal lining integral ceramic composite bend composite steel tube.
Perhaps
Technical process 2.
A, batching.Aluminum oxide, barium carbonate, whisker, talcum, Suzhou soil and chromic oxide are required batching in proportion;
B, ball milling.To carry out ball milling, material in the adding of the ceramic raw material in the A step ball mill: ballstone: water=1:2:0.6,10-20 hours ball milling time, and sieve and deironing, make ceramic size;
C, slip casting.Ceramic size is injected plaster mould, leave standstill for some time, pour out unnecessary ceramic size, obtain integral ceramic bend pipe wet green;
D, drying.Integral ceramic bend pipe wet green in the plaster mould in the C step is taken out, and put into 60 ℃ of-120 ℃ of baking ovens dry 12 hours, obtain integral ceramic bend pipe dried;
E, sintering.The dried green compact of gained integral ceramic bend pipe are put into kiln and are carried out sintering in the D step, heat up with 5 ℃ of-10 ℃/min heat-up rates, 1350 ℃ of-1600 ℃ of hot stages insulations 3 hours, obtain the integral ceramic bend pipe;
F, compound.To outside the integral ceramic bend pipe, coat one deck steel pipe and just obtain internal lining integral ceramic composite bend composite steel tube;
Among the present invention, the ball milling of ceramic raw material, press filt, drying and sintering all are known technology.
The present invention has following advantage:
1. super wear resistance.The ceramic bend pipe of liner is to have the density height, the wear resistance height by the bulk ceramics bend pipe that methods such as extrusion moulding or injection forming prepare.Its wear resistance is 10-12 times of ceramic-lined bend pipe of SHS preparation, is 5-6 times of chip ceramic bend pipe, 10-20 times of rich chromium cast iron bend steel tube, wear loss≤0.015%.
2. combined high-strength.The adhesive method that combines abandoning tradition of internal layer ceramic bend pipe and outer layer pipe, thus avoided coming off because of adhesive failure causes ceramic plate.
3. long service life.The super wear-resistant ceramic composite steel tube wear resistance of annular heat shrinkage method preparation is very high, and its wear resisting property reaches the medium carbon steel pipe more than 50 times, is cast steel with high chromium pipe, cast stone multiple-unit tube 10-20 times.
4. in light weight.Internal lining integral ceramic composite bend composite steel tube unit weight is light, is 2/3 of cast steel with high chromium pipe weight, is about half of cast stone multiple-unit tube weight.The labour intensity and expense during except minimizing installation, maintenance, also reduced the built on stilts propping material expense of pipeline.
5. price is low.Under same inner diameter, the price of internal lining integral ceramic composite bend composite steel tube unit length is about 70% of a cast steel with high chromium pipe.
6. the post-treatment performance is good.The skin of internal lining integral ceramic composite bend composite steel tube is a steel pipe, and available common welding rod directly welds, and ceramic layer can not come off, and cast steel with high chromium pipe weldability is poor, and the cast stone multiple-unit tube can not weld.
7. high temperature resistant.Use temperature can reach 800 ℃, and the cast steel with high chromium pipe only has 450 ℃, and the cast stone multiple-unit tube has only 250 ℃.
8. acidproof, alkaline-resisting and high pressure resistant.
Embodiment
Embodiment 1
A, take by weighing aluminum oxide 8200 grams, barium carbonate 400 grams, whisker 300g, talcum gram 400 grams, Suzhou soil 500 grams and chromic oxide 200g and require batching in proportion;
B, above-mentioned ceramic powder is added ball milling 20h in the ball mill, material: ballstone: water=1:2:1, and cross deironing behind 250 mesh sieves, obtain ceramic size 20000 grams;
C, the ceramic size process slip drying press dehydration that above-mentioned B step is prepared obtain mud cake 12500 grams;
D, the mud cake of C step is added pug mill carry out vacuum pugging, and old 48-60h, old mud section 10000 grams obtained;
E, the old mud section of D step gained is added extrusion forming in the tube extruding machine, it is curved to obtain integral ceramic
2 of pipe wet green behind the 48h that dries in the shade, were put into 60 ℃ of-120 ℃ of baking ovens dry 12 hours again, obtained
2 of integral ceramic bend pipe dried;
F, gained integral ceramic bend pipe dried in the E step is put into kiln carry out sintering, heat up,, obtain 2 of integral ceramic bend pipes 1350 ℃ of hot stages insulations 3 hours with 10 ℃/min heat-up rate;
G, outside the integral ceramic bend pipe, coat one deck steel pipe, just obtain 2 of internal lining integral ceramic composite bend composite steel tubes.
Embodiment 2
A, will take by weighing aluminum oxide 8200 grams, barium carbonate 400 grams, whisker 300g, talcum gram 400 grams, Suzhou soil 500 grams and chromic oxide 200g and require batching in proportion;
B, will the ceramic raw material in the A step add in the ball mill and carry out ball milling, material: ballstone: water=1:2:0.6,20 hours ball milling time, and cross deironing behind 250 mesh sieves, obtain ceramic size 16000 grams;
C, the ceramic size of B step is injected plaster mould, leave standstill 30min after, pour out unnecessary slurry, leave standstill 4h again, obtain integral ceramic bend pipe wet green;
D, the integral ceramic bend pipe wet green in the plaster mould in the C step is taken out, and put into 60 ℃ of-120 ℃ of baking ovens dry 12 hours, obtain 2 of integral ceramic bend pipe dried;
E, the dried green compact of gained integral ceramic bend pipe are put into kiln and are carried out sintering in the D step, heat up with 7 ℃/min heat-up rate, 1520 ℃ of hot stages insulations 3 hours, obtain 2 of integral ceramic bend pipes;
F, will outside the integral ceramic bend pipe, coat one deck steel pipe and just obtain 2 of internal lining integral ceramic composite bend composite steel tubes.
Embodiment 3
1, takes by weighing aluminum oxide 9000 grams, barium carbonate 300 grams, whisker 300g, talcum gram 100 grams, Suzhou soil 100 gram and chromic oxide 200g, require batching in proportion;
2, the powder in 1 step is added ball milling 20h in the ball mill, material: ballstone: water=1:2:1, and deironing behind mistake 250 mesh sieves obtain ceramic size 20000 grams;
3, dehydration obtains mud cake 12500 grams through slip drying press with above-mentioned ceramic size;
4, the vacuum in pug mill of the mud cake in 3 steps is mixed, and old 48h, old mud section obtained;
5, with the extrusion moulding of the old mud section process of gained in 4 steps tube extruding machine, obtain 2 of integral ceramic bend pipe wet green, and the 48h that dries in the shade, put into 100 ℃ in baking oven, drying 12 hours again, obtain 2 on the dried green compact of integral ceramic bend pipe;
6, the dried green compact of integral ceramic bend pipe are put into kiln and carry out sintering, heat up,, obtain 2 of integral ceramic bend pipes 1600 ℃ of hot stage insulations 3 hours with 7 ℃/min speed;
7, outside the integral ceramic bend pipe, coat one deck steel pipe, obtain 2 of the bending composite steel tubes of internal lining integral ceramic.
Claims (8)
1. the composite bend steel tube of an internal lining integral ceramic and technology of preparing thereof is characterized in that adopting following prescription (by weight percentage):
Aluminum oxide 70-90%, barium carbonate 3-7%, whisker 3-5%, talcum 1-8%, Suzhou soil 1-5%, chromic oxide 2-5%.
2. method for preparing the composite bend steel tube of the described internal lining integral ceramic of claim 1 is characterized in that: can adopt batching, ball milling, press filt, vacuum pugging, moulding, sintering and operation such as compound.
3. the preparation method of the composite bend steel tube of internal lining integral ceramic according to claim 2, it is characterized in that: described moulding is meant the employing extruding forming method.
4. the preparation method of the composite bend steel tube of internal lining integral ceramic according to claim 2 is characterized in that: described sintering was meant with 5 ℃ of-10 ℃/min heat-up rates and heats up, 1350 ℃ of-1600 ℃ of hot stages insulations 3 hours.
5. the preparation method of the composite bend steel tube of internal lining integral ceramic according to claim 2, it is characterized in that: described compound being meant just obtains internal lining integral ceramic composite bend composite steel tube with coat one deck steel pipe outside the integral ceramic bend pipe.
6. preparation method who prepares the composite bend steel tube of the described internal lining integral ceramic of claim 1 is characterized in that: can also adopt batching, ball milling, slip casting, drying, sintering and operation such as compound.
7. the preparation method of the composite bend steel tube of internal lining integral ceramic according to claim 5, it is characterized in that: described slip casting is meant injects plaster mould with ceramic size, leave standstill for some time, pour out unnecessary ceramic size, obtain integral ceramic bend pipe wet green.
8. the preparation method of the composite bend steel tube of internal lining integral ceramic according to claim 5, it is characterized in that: described compound being meant just obtains internal lining integral ceramic composite bend composite steel tube with coat one deck steel pipe outside the integral ceramic bend pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200910042421XA CN101456725A (en) | 2009-01-06 | 2009-01-06 | Composite bend steel tube of internal lining integral ceramic and preparation technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200910042421XA CN101456725A (en) | 2009-01-06 | 2009-01-06 | Composite bend steel tube of internal lining integral ceramic and preparation technology thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101456725A true CN101456725A (en) | 2009-06-17 |
Family
ID=40767887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200910042421XA Pending CN101456725A (en) | 2009-01-06 | 2009-01-06 | Composite bend steel tube of internal lining integral ceramic and preparation technology thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101456725A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105538167A (en) * | 2015-12-03 | 2016-05-04 | 山东开泰抛丸机械股份有限公司 | Preparation method of shot flowing pipe of composite shot blasting machine |
| CN114315318A (en) * | 2020-09-30 | 2022-04-12 | 李泽刚 | Manufacturing method of composite wear-resistant part and composite wear-resistant part |
-
2009
- 2009-01-06 CN CNA200910042421XA patent/CN101456725A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105538167A (en) * | 2015-12-03 | 2016-05-04 | 山东开泰抛丸机械股份有限公司 | Preparation method of shot flowing pipe of composite shot blasting machine |
| CN105538167B (en) * | 2015-12-03 | 2017-09-26 | 山东开泰抛丸机械股份有限公司 | A kind of preparation method of compound impeller head stream ball pipe |
| CN114315318A (en) * | 2020-09-30 | 2022-04-12 | 李泽刚 | Manufacturing method of composite wear-resistant part and composite wear-resistant part |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101585710B (en) | Refractory material for coal loading port of coke oven | |
| CN100457685C (en) | Silicon mullite red brick for large cement kiln and its producing method | |
| CN105461306A (en) | High-strength silicon carbide ceramic pipe and manufacturing method thereof | |
| CN104801656A (en) | Highly fire-resistant foundry sand for steel casting and preparation method of highly fire-resistant foundry sand | |
| CN102079658B (en) | Method for manufacturing high-strength ultra wear-resistant precast brick | |
| CN106938923B (en) | Silicon corundum wear-resistant composite brick | |
| CN106938922A (en) | Silicon steel jade abrasive brick | |
| CN106145976A (en) | Cement kiln andalusite mullite silicon carbide brick and preparation method thereof | |
| CN109574639A (en) | High thermal shock resistance corundum-mullite brick and preparation method thereof | |
| CN107140996A (en) | A kind of carborundum graphite stalk and preparation method | |
| CN108249922B (en) | Sagger for metallurgy and preparation method thereof | |
| CN102765931B (en) | Method for preparing ceramic material utilizing magnetic separation tail sludge from steel slag wet process | |
| CN112645697A (en) | High-density corundum mullite brick for hazardous waste disposal rotary kiln | |
| CN101618969A (en) | Method for preparing compound lining material of blast furnace | |
| CN109485439A (en) | The preparation method of low thermally conductive high abrasion silicon not compound heat-insulation brick | |
| CN101456725A (en) | Composite bend steel tube of internal lining integral ceramic and preparation technology thereof | |
| CN101407389B (en) | Efficient composite silica sealing slurry and preparation thereof | |
| CN101712553A (en) | Production method of high refractorinees-under-load softening anti-strip high-alumina brick | |
| CN107556008A (en) | CFBB abrasion-proof fire-resistant moldable refractory | |
| CN108083786A (en) | A kind of blast furnace iron notch anhydrous micro- titanium heap buildup and preparation method thereof | |
| CN110067293A (en) | Sewage conduct engineering construction process | |
| CN113526944B (en) | Anti-sticking copper spray coating for copper smelting and preparation method thereof | |
| CN109678537A (en) | A kind of high-temperature-resistant and anti-corrosion mullite silicon carbide cast preparation method for material | |
| CN105130475A (en) | Low-temperature solidification spray coating and construction method thereof | |
| CN104446563A (en) | Method for preparing SiC (silicon carbide)-based refractory material by using silicon resin as binding agent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20090617 |