CN103267176A - Anti-corrosion, high-temperature-resisting and wear-resisting cast pipe - Google Patents
Anti-corrosion, high-temperature-resisting and wear-resisting cast pipe Download PDFInfo
- Publication number
- CN103267176A CN103267176A CN2013102306394A CN201310230639A CN103267176A CN 103267176 A CN103267176 A CN 103267176A CN 2013102306394 A CN2013102306394 A CN 2013102306394A CN 201310230639 A CN201310230639 A CN 201310230639A CN 103267176 A CN103267176 A CN 103267176A
- Authority
- CN
- China
- Prior art keywords
- temperature
- room temperature
- cast tube
- coating
- resisting
- 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.)
- Granted
Links
- 238000005260 corrosion Methods 0.000 title claims abstract description 31
- 238000010438 heat treatment Methods 0.000 claims abstract description 44
- 238000000576 coating method Methods 0.000 claims abstract description 34
- 239000011248 coating agent Substances 0.000 claims abstract description 31
- 238000005496 tempering Methods 0.000 claims abstract description 27
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 22
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 19
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 16
- 238000004881 precipitation hardening Methods 0.000 claims abstract description 7
- 238000005728 strengthening Methods 0.000 claims abstract description 7
- 239000002131 composite material Substances 0.000 claims abstract description 6
- 239000006104 solid solution Substances 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 47
- 239000010959 steel Substances 0.000 claims description 47
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 33
- 239000002994 raw material Substances 0.000 claims description 33
- 238000001816 cooling Methods 0.000 claims description 30
- 230000007797 corrosion Effects 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 26
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 19
- 229910052799 carbon Inorganic materials 0.000 claims description 18
- 238000005266 casting Methods 0.000 claims description 18
- 239000000126 substance Substances 0.000 claims description 16
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- 230000003647 oxidation Effects 0.000 claims description 15
- 239000000956 alloy Substances 0.000 claims description 14
- 239000007789 gas Substances 0.000 claims description 14
- 230000002401 inhibitory effect Effects 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 14
- 239000000243 solution Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 229910045601 alloy Inorganic materials 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 239000010410 layer Substances 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 229910000863 Ferronickel Inorganic materials 0.000 claims description 10
- 229910000592 Ferroniobium Inorganic materials 0.000 claims description 10
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- YYLGKUPAFFKGRQ-UHFFFAOYSA-N dimethyldiethoxysilane Chemical compound CCO[Si](C)(C)OCC YYLGKUPAFFKGRQ-UHFFFAOYSA-N 0.000 claims description 10
- ZFGFKQDDQUAJQP-UHFFFAOYSA-N iron niobium Chemical compound [Fe].[Fe].[Nb] ZFGFKQDDQUAJQP-UHFFFAOYSA-N 0.000 claims description 10
- 239000006193 liquid solution Substances 0.000 claims description 10
- 238000002454 metastable transfer emission spectrometry Methods 0.000 claims description 10
- 239000002114 nanocomposite Substances 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 8
- 238000005275 alloying Methods 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910000604 Ferrochrome Inorganic materials 0.000 claims description 5
- 229910000616 Ferromanganese Inorganic materials 0.000 claims description 5
- 229910001145 Ferrotungsten Inorganic materials 0.000 claims description 5
- 108010038629 Molybdoferredoxin Proteins 0.000 claims description 5
- 229910000805 Pig iron Inorganic materials 0.000 claims description 5
- HBELESVMOSDEOV-UHFFFAOYSA-N [Fe].[Mo] Chemical compound [Fe].[Mo] HBELESVMOSDEOV-UHFFFAOYSA-N 0.000 claims description 5
- 238000013019 agitation Methods 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052796 boron Inorganic materials 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000006185 dispersion Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000007888 film coating Substances 0.000 claims description 5
- 238000009501 film coating Methods 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims description 5
- PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 claims description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 238000003754 machining Methods 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 239000010955 niobium Substances 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 238000005554 pickling Methods 0.000 claims description 5
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 5
- 150000002910 rare earth metals Chemical class 0.000 claims description 5
- 238000005488 sandblasting Methods 0.000 claims description 5
- 238000004528 spin coating Methods 0.000 claims description 5
- 238000002604 ultrasonography Methods 0.000 claims description 5
- 229910052720 vanadium Inorganic materials 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 claims description 4
- 238000010791 quenching Methods 0.000 abstract description 6
- 230000000171 quenching effect Effects 0.000 abstract description 6
- 238000009750 centrifugal casting Methods 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 abstract description 4
- 230000003373 anti-fouling effect Effects 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 9
- 238000011161 development Methods 0.000 description 8
- 239000002585 base Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005242 forging Methods 0.000 description 3
- 239000004922 lacquer Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 229910000997 High-speed steel Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000005496 eutectics Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910001339 C alloy Inorganic materials 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000008485 antagonism Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011417 postcuring Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Abstract
The invention relates to an anti-corrosion, high-temperature-resisting and wear-resisting cast pipe. A wear-resisting pipeline body is manufactured by means of centrifugal casting; after the steps of quenching, high-temperature tempering, solid solution strengthening heat treatment and two times of tempering dispersion hardening heat treatment, the inner wall of the pipeline body is coated with a water glass nanometer composite coating configured by a test; and then, the coating is cooled after being cured at a high temperature, so that a high-temperature-oxidation resisting anti-corrosion coating inner layer is obtained. The manufactured metal pipeline has high hardness and high wear-resisting performance. The anti-corrosion coating has excellent water-resisting performance, an excellent antifouling effect and good high-temperature-resisting performance.
Description
Technical field
The present invention relates to a kind of pipeline, relate in particular to a kind of anticorrosion heat resistant and wear resistant cast tube.
Background technique
Material damage has three kinds of principal modes: namely rupture, corrode and wear and tear.Although fret wear seldom causes the catastrophic harm of metal workpiece unlike other two kinds of forms, its economic loss that causes is quite surprising.Data shows according to statistics: in the mechanical parts that lost efficacy, nearly 75% "--the 80%th, belong to that galling causes.The nearly 30%-50% of the energy of supply equipment is consumed in the friction and wear process.Parts depreciation not only influenced the performance of machinery equipment effective utilization after losing efficacy, and needed to consume a large amount of human and material resources replacing accessories and maintenance of equipment.By the economic loss that wearing and tearing cause, about 1,200 hundred million dollars/year of the U.S., about 50,000,000,000 mark/years of Germany.According to statistics in 2005, the domestic annual metal wear resistant material that consumes reached more than 5,000,000 tons approximately, is worth more than 55,000,000,000 yuan.This shows that galling is to cause one of principal mode of mechanical parts inefficacy, galling is the major issue that is related to the national economic development.In today of scientific and technical high speed development, each department of national economy has all proposed requirements at the higher level to serviceability, reliability and the precision of machinery.Therefore, friction phenomenon and the abrasion mechanism of research metal are inquired into the various factors that influence is worn and torn, and improve the abrasion-resistance of metal, and development and development of new abrasive-resistant material become the important topic that the scientific worker faces already.
In industrial field, abrasive wear is most important a kind of wear type, accounts for 50%.The abrasive wear phenomenon extensively is present in most of machinery, particularly at mining machinery, farm machinery, engineering machinery and foundry machinery etc., and as various rubble machineries, excavator, tractor, coal winning machine, the transport airplane of transportation industry, slurry pump etc.Only be used for high-abrasive material that rock crushing plant such as Hubei Province formula stone crusher, hammer crusher, impact stone crusher, impact breaker (sand machine processed), cone crusher, double-roll type stone crusher, slurry pump etc. consume every year just above 150,000 tons, be worth more than 2,000,000,000 yuan.Along with the quickening of transport development speed, wearing and tearing have become the transportation industry ubiquity and have become the main cause that causes equipment failure or material damage.In order to improve the utilization efficiency of equipment such as transportation industry rock crushing plant and concrete pump, reduce maintenance frequency, reduce production costs.Therefore, research and development a new generation high-abrasive material reduces galling, and the development of China's transport development is had great importance.
In order to obtain more high hardness and wear resistance, generally need to improve carbon and alloying element content, when Kohlenstoffgehalt increases, often cause material crackle to occur because heat treating regime is improper in the heat treatment process, existing heat treating regime is difficult to be applied in the casting high-carbon high-alloy material heat treatment.
For the high alloy steel material, the general High Chrome Steel that adopt also adopt high speed steel and base steel sometimes, but effect are all not ideal more.This is because exist thick M7c3 eutectic carbide in the High Chrome Steel, even conducting forging processing also can only partly be smashed, causes thus that obdurability is low and causes wear resistance relatively poor.Though the high speed steel wear resistance is very high, there is thick eutectic carbide, toughness is relatively poor, easy tipping in the using process, and processing and heat treatment cost are higher.The base steel obdurability is better, but because almost all dissolvings of carbide when quenching, so wear resistance is not ideal enough.Crystal grain is easily grown up during base steel quenching austenitizing, as thin blade tip angle tool and mould quasi-cleavage fracture takes place easily, and usability is also undesirable.
The high alloy mould steel mainly uses the operating mode of having relatively high expectations in antagonism tempering and wear resistance, and the low-alloy mould steel mainly uses to less demanding but higher to the toughness reguirements occasion of temper resistance.In actual production, in order to enhance productivity and working life, though requirement is not very high occasion to temper resistance, also often select the high alloy mould steel.But, along with the development of producing, people recognize the less demanding processing occasion of a lot of temper resistances gradually, use high alloy steel because not utilizing its high-temperature resistant tempered property, it is a kind of using method of wasting alloying element, on the contrary also can be owing to the alloy amount be excessive, make the carbide alligatoring and do not reach due toughness.But for the low-alloy mould steel, when using operating temperature to surpass tempering temperature, often do not reach due temper resistance, cause wear resistance low excessively.
In the alloy designs of actual mould steel, for intensity, wear resistance and the temper resistance that improves high-carbon low-alloy steel, often considering increases its alloy content, makes it to become the high-carbon medium alloy steel.But the high-carbon medium alloy steel may cause carbide to assemble to grow up, to be difficult for refinement, and performances such as the obdurability of steel, fatigue crack-resistant are had certain influence.And owing to improved quenching temperature, cause the quenching remained austenite content to increase, and need improve tempering temperature again and decompose to promote retained austenite, hardness is descended, influenced the usability of medium alloy steel.Mould steel always lacks high-carbon medium alloy steel kind both at home and abroad, therefore need develop suitable low temperature quenching, has some in the microstructure, the tiny carbide of size and distributional pattern, have higher hardness and obdurability simultaneously, with alloy mould steel in the high-carbon that satisfies the usability requirement.Forging rolling processing and the heat treatment process purpose that be difficult to reach refinement of the middle and high alloyed steel of existing most of high-carbon by routine, and can increase difficulty on the technology by forging rolling processing or the heat treatment process of complexity, and consume the more energy, often also be difficult to the degree of refinement that reaches desirable.Because high-carbon alloy steel is difficult relatively by the target that alloyage reaches refinement, although research both at home and abroad is more, does not also have clear and definite solution.
Corrosion is the one of the main reasons that causes that metallic conduit destroys and lost efficacy.Cause the environment that corrosion takes place metallic material to mainly contain two big classes: a class is physical environment, as more weak corrosive environments such as natural atmosphere, ocean, soil; Another kind of is industrial environment, as severe corrosive industrial gas and industry solution etc.In the corrosion with normal physical environment, its corrosion type belongs to electrochemical corrosion and biochemical corrosion, effect a little less than, rate of corrosion is slower, the short-term corrosion failure is less, but potential hazard is bigger; And if metal is when being used for purposes such as severe corrosive industrial gas, solution environmental and effluent discharge, and its corrosion type belongs to chemical corrosion, and effect is strong, and corrosion reaction is violent, and destructiveness is very strong.So the corrosion of metallic conduit is relevant with its residing environment and fed sheet of a media.So, in order to improve the working life of metallic conduit,
Corrosion-inhibiting coating must possess following essential characteristic:
(1) corrosion resistance and good.Refer to that coating all is stable to the aggressive medium that it contacts physically and chemically, neither be corroded medium swelling, dissolving are not yet destroyed, are decomposed by aggressive medium.
(2) gas permeability and water permeability are little.Corrosion of metal under the coating, be because water and oxygen etc. are penetrated on the interface of coating and metal causes in essence, so must select little film forming matter and the big filler of shielding action of gas permeability, and making coating reach certain thickness, critical thickness depends on the character of film-forming resin and the disposing condition of metal surface etc.
(3) good adhesion and certain mechanical strength to be arranged.Whether coating can be attached on the metallic matrix securely, is that can coating bring into play one of key factor of protective action.
Yet corrosion-inhibiting coating is difficult to take into account water resistence, anti-fouling effect usually in the prior art, and resistance to high temperature.
Summary of the invention
The object of the invention is to provide a kind of anticorrosion heat resistant and wear resistant cast tube, its first purpose, it is even to provide a kind of carbide Tissue distribution, the antifriction metal (AFM) pipeline body that surface quality is good, hardness is high, second purpose are the anticorrosive coats that excellent in durability, hardness height, acid resistant alkali is provided on the basis of antifriction metal (AFM) pipeline and can bears high temperature.
For reaching above technical purpose, the invention provides following technological scheme:
A kind of anticorrosion heat resistant and wear resistant cast tube is characterized in that it comprises the corrosion-inhibiting coating of abrasion-proof pipe body and inner-walls of duct,
Described abrasion-proof pipe body has the raw material of following chemical component weight percentage:
C：1.6~3.7%， V：4.5~8.5%，
W：3.2~9.1%， Mo：2.4~7.6%，
Cr：3.8~8.9%， RE：0.15~0.4%，
Mn：0.3~0.7%， Si：0.05~1.0%，
B：0.01-0.02%， Al：0.2~0.8%，
Nb：0.08~2.4%， Ni：0.1~0.3%，
Surplus is the inevitable impurity of Fe and trace;
The corrosion-inhibiting coating of described inner-walls of duct has the raw material of following chemical component weight ratio:
The MTES of 23 ~ 25 weight portions;
The dimethyldiethoxysilane of 7 ~ 8 weight portions;
0.8 the NaOH of ~ 0.9 weight portion;
The Al of 2 ~ 3 weight portions
2O
3
0.3 the ZnO of ~ 0.4 weight portion;
The isopropanol of 9 ~ 11 weight portions;
The water of 4 ~ 5 weight portions;
And described abrasion-resistant metal pipeline with inner anticorrosioning coating is prepared from by following steps:
A) preparation abrasion-proof pipe body
1) draws materials according to the component of above-mentioned pipeline body;
2) with ordinary scrap steel, chromic carbide iron, ferro-niobium, ferronickel, ferrotungsten, molybdenum-iron, ferrochrome, ferro-niobium, ferronickel and the fusing of ferromanganese Hybrid Heating, with the pig iron or graphite carburetting, Hybrid Heating is fused into molten steel, and the molten clear back of molten steel adds ferrosilicon and carries out pre-deoxidation;
3) according to the material composition proportioning, the stokehold is adjusted to branch and is warming up to 1580-1630 ℃ after qualified, adds aluminium block again and carries out final deoxidation, then comes out of the stove;
4) rare earth ferrosilicon alloy, ferro-boron, vanadium iron are placed the casting ladle bottom, with the method that pours in the bag molten steel composite inoculating is handled, the high-carbon high-alloy steel molten steel is prefabricated to be finished;
5) also prefabricated molten steel is poured in the type tube through type tube in the centrifuge placement, it is the steel pipe of 30 ~ 35mm that spun casting becomes thickness;
6) after spun casting was finished, the parking demoulding when the cast tube inner wall temperature drops to below 200 ℃ separated cast tube and takes out with type tube;
7) earlier cast tube is quenched, be 910 ~ 950 ℃ in temperature and be incubated 180 ~ 220min down, then with the rate of cooling oil cooling of about 55 ~ 70 ℃/S to room temperature, carry out high-temperature tempering again, cast tube is heated to 720 ~ 740 ℃ and be incubated 150 ~ 180min, stove is chilled to room temperature, thereby finishes modified heat treatment;
8) will be heated to 930 ~ 980 ℃ of temperature again through the cast tube of above-mentioned processing and be incubated 110 ~ 130min, then with the rate of cooling oil cooling of about 70 ~ 85 ℃/S to room temperature, thereby make the alloying element solid solution in parent metal, finish solution strengthening heat treatment;
9) carry out double tempering dispersion hardening heat treatment process at last again: one time tempering temperature is 350 ~ 400 ℃, and holding time is 70 ~ 90min, and air cooling is to room temperature; The double tempering temperature is 520 ~ 550 ℃, and holding time 70 ~ 90min, air cooling finish the heat treatment for cast tube to room temperature;
10) interior boring is taken off outward, the machining of inside and outside circle grinding to carrying out through heat treated cast tube pipeline, obtains the abrasion-proof pipe body;
B) preparation inner wall anti-corrosive coating
1) draws materials according to the raw material of above-mentioned inner wall anti-corrosive coating;
2) MTES in the above-mentioned raw materials and dimethyldiethoxysilane are mixed, the even back of magnetic agitation adds the NaOH of corresponding proportioning in the raw material, and at room temperature stirring reaction is 16 hours;
3) the slow water that adds corresponding proportioning in the raw material in the prepared solution of above-mentioned steps after finishing, at room temperature continues reaction 2 hours, obtains the water glass adhesive liquid solution;
4) with the Al in the above-mentioned raw materials
2O
3Join in the isopropanol with ZnO, adopt ultrasound to disperse, obtain finely dispersed Al
2O
3, the ZnO dispersion liquid, join then in the water glass adhesive liquid solution that above-mentioned steps makes, stirring under the room temperature obtains the water glass nano composite dope;
5) with steps A) the abrasion-proof pipe inner body wall that makes carries out derusting by sandblasting or chemical pickling rust cleaning; clean; phosphatization is handled; adopt spin-coating method to be applied on the pipeline body inwall the synthetic water glass nano composite dope that obtains of above-mentioned steps; treat that rete is at room temperature after the drying; solidify and obtain stable rete; adopt nitrogen as shielding gas again; pipe temperature is elevated to 400 ℃ and kept 30 minutes; all the time in the environment of shielding gas, cool off then; obtain resistance to high temperature oxidation anti-corrosive film coating layer at inner-walls of duct, finally make the wear-resisting cast tube with resistance to high temperature oxidation anticorrosive coat.
The present invention compared with prior art has following beneficial effect:
1) abrasion-proof pipe body of the present invention obtains high-carbon high-alloy steel by a large amount of suitable components of having optimized experimental selection; Then in the heat treatment process to cast tube, at first adopting quenches increases temperature the modified heat treatment of tempering, to replace isothermal annealing heat treatment process commonly used in the general centrifugal casting high-carbon high-alloy steel heat treatment process, shortened heat treatment cycle greatly, increase work efficiency; Secondly after solution strengthening heat treatment, carry out double tempering dispersion hardening heat treatment process again, make that the carbide Tissue distribution is even in the cast tube, reduced segregation phenomena greatly, surface quality is good, and secondary hardening post-curing occurs, is matrix with martensite in the abrasion-proof pipe cast tube that makes at last, contain a large amount of carbide hard phases, the hardness height, product hardness reaches 66-69HRC, has good abrasion resistance.
2) for corrosion-inhibiting coating of the present invention, equally through overtesting preferred suitable component, make water glass and nano-oxide particles react, form cross structure, this coating is water-fast, acid-and base-resisting, organic solvent-resistant ability are strong, the hardness height especially can bear the high temperature more than 600 ℃, has excellent resistance to high temperature oxidation function and rub resistance function;
3) the present invention adopts common centrifugal casting apparatus, circuit and common spraying equipment, and cost of production is low, is easy to promote.
Description of drawings
Fig. 1 is according to the schematic cross-section with wear-resisting cast tube of resistance to high temperature oxidation anticorrosive coat of the present invention,
1 is the abrasion-proof pipe body, and 2 is the corrosion-inhibiting coating of inner-walls of duct;
Embodiment
Embodiment given below intends so that the invention will be further described; but can not be interpreted as it is limiting the scope of the invention; the person skilled in art to some nonessential improvement and adjustment that the present invention makes, still belongs to protection scope of the present invention according to the content of the invention described above.
Embodiment 1
A) preparation abrasion-proof pipe body
1) draw materials, select the raw material of following chemical component weight percentage:
C：1.6%， V：4.5%，
W：9.1%， Mo：7.6%，
Cr：3.8%， RE：0.15%，
Mn：0.7%， Si：0.05%，
B： 0.02%， Al：0.2%，
Nb：0.08%， Ni：0.1%，
Surplus is the inevitable impurity of Fe and trace;
2) with ordinary scrap steel, chromic carbide iron, ferro-niobium, ferronickel, ferrotungsten, molybdenum-iron, ferrochrome, ferro-niobium, ferronickel and the fusing of ferromanganese Hybrid Heating, with the pig iron or graphite carburetting, Hybrid Heating is fused into molten steel, and the molten clear back of molten steel adds ferrosilicon and carries out pre-deoxidation;
3) according to the material composition proportioning, the stokehold is adjusted to branch and is warming up to 1580 ℃ after qualified, adds aluminium block again and carries out final deoxidation, then comes out of the stove;
4) rare earth ferrosilicon alloy, ferro-boron, vanadium iron are placed the casting ladle bottom, with the method that pours in the bag molten steel composite inoculating is handled, the high-carbon high-alloy steel molten steel is prefabricated to be finished;
5) also prefabricated molten steel is poured in the type tube through type tube in the centrifuge placement, it is the steel pipe of 30mm that spun casting becomes thickness;
6) after spun casting was finished, the parking demoulding when the cast tube inner wall temperature drops to below 200 ℃ separated cast tube and takes out with type tube;
7) earlier cast tube being quenched, is 910 ℃ of insulation 180min down in temperature, then with the rate of cooling oil cooling of about 55 ℃/S to room temperature, carry out high-temperature tempering again, cast tube is heated to 720 ℃ and insulation 150min, and stove is chilled to room temperature, thereby finishes modified heat treatment;
8) will be heated to 930 ℃ of temperature and insulation 110min through the cast tube of above-mentioned processing again, then with the rate of cooling oil cooling of about 70 ℃/S to room temperature, thereby make the alloying element solid solution in parent metal, finish solution strengthening heat treatment;
9) carry out double tempering dispersion hardening heat treatment process at last again: one time tempering temperature is 350 ℃, and holding time is 70min, and air cooling is to room temperature; The double tempering temperature is 520 ℃, and holding time 70min, air cooling finish the heat treatment for cast tube to room temperature;
10) interior boring is taken off outward, the machining of inside and outside circle grinding to carrying out through heat treated cast tube pipeline, obtains the abrasion-proof pipe body;
B) preparation inwall resistance to high temperature oxidation corrosion-inhibiting coating
1) raw material of the following chemical component weight ratio of selection:
The MTES of 23 weight portions;
The dimethyldiethoxysilane of 8 weight portions;
0.8 the NaOH of weight portion;
The Al of 2 weight portions
2O
3
0.3 the ZnO of weight portion;
The isopropanol of 9 weight portions;
The water of 4 weight portions;
2) MTES in the above-mentioned raw materials and dimethyldiethoxysilane are mixed, the even back of magnetic agitation adds the NaOH of corresponding proportioning in the raw material, and at room temperature stirring reaction is 16 hours;
3) the slow water that adds corresponding proportioning in the raw material in the prepared solution of above-mentioned steps after finishing, at room temperature continues reaction 2 hours, obtains the water glass adhesive liquid solution;
4) with the Al in the above-mentioned raw materials
2O
3Join in the isopropanol with ZnO, adopt ultrasound to disperse, obtain finely dispersed Al
2O
3, the ZnO dispersion liquid, join then in the water glass adhesive liquid solution that above-mentioned steps makes, stirring under the room temperature obtains the water glass nano composite dope;
5) with steps A) the abrasion-proof pipe inner body wall that makes carries out derusting by sandblasting or chemical pickling rust cleaning; clean; phosphatization is handled; adopt spin-coating method to be applied on the pipeline body inwall the synthetic water glass nano composite dope that obtains of above-mentioned steps; treat that rete is at room temperature after the drying; solidify and obtain stable rete; adopt nitrogen as shielding gas again; pipe temperature is elevated to 400 ℃ and kept 30 minutes; all the time in the environment of shielding gas, cool off then; obtain resistance to high temperature oxidation anti-corrosive film coating layer at inner-walls of duct, finally make the wear-resisting cast tube with resistance to high temperature oxidation anticorrosive coat.
The abrasion-proof pipe that above-described embodiment is made carries out hardness and bending strength test, and recording hardness is 67HRC, and resistance to flexure is 1442Mp.Corrosion-inhibiting coating is tested, the layer of lacquer film hardness is 7H again, is immersed in 10% sulfuric acid 4 days coatings and does not bubble or obscission, is carrying 630 ℃ smoke mixture to measure after 1.5 hours, and the pipeline internal layer is not oxidized.
Embodiment 2
A) preparation abrasion-proof pipe body
1) draw materials, select the raw material of following chemical component weight percentage:
C：2.7%， V：6.0%，
W：6.9%， Mo：5.3%，
Cr：5.4%， RE：0.23%，
Mn：0.6%， Si：0.08%，
B：0.01%， Al：0.5%，
Nb：1.1%， Ni：0.2%，
Surplus is the inevitable impurity of Fe and trace;
2) with ordinary scrap steel, chromic carbide iron, ferro-niobium, ferronickel, ferrotungsten, molybdenum-iron, ferrochrome, ferro-niobium, ferronickel and the fusing of ferromanganese Hybrid Heating, with the pig iron or graphite carburetting, Hybrid Heating is fused into molten steel, and the molten clear back of molten steel adds ferrosilicon and carries out pre-deoxidation;
3) according to the material composition proportioning, the stokehold is adjusted to branch and is warming up to 1600 ℃ after qualified, adds aluminium block again and carries out final deoxidation, then comes out of the stove;
4) rare earth ferrosilicon alloy, ferro-boron, vanadium iron are placed the casting ladle bottom, with the method that pours in the bag molten steel composite inoculating is handled, the high-carbon high-alloy steel molten steel is prefabricated to be finished;
5) also prefabricated molten steel is poured in the type tube through type tube in the centrifuge placement, it is the steel pipe of 30 ~ 35mm that spun casting becomes thickness;
6) after spun casting was finished, the parking demoulding when the cast tube inner wall temperature drops to below 200 ℃ separated cast tube and takes out with type tube;
7) earlier cast tube being quenched, is 930 ℃ of insulation 200min down in temperature, then with the rate of cooling oil cooling of about 65 ℃/S to room temperature, carry out high-temperature tempering again, cast tube is heated to 730 ℃ and insulation 160min, and stove is chilled to room temperature, thereby finishes modified heat treatment;
8) will be heated to 950 ℃ of temperature and insulation 120min through the cast tube of above-mentioned processing again, then with the rate of cooling oil cooling of about 75 ℃/S to room temperature, thereby make the alloying element solid solution in parent metal, finish solution strengthening heat treatment;
9) carry out double tempering dispersion hardening heat treatment process at last again: one time tempering temperature is 380 ℃, and holding time is 80min, and air cooling is to room temperature; The double tempering temperature is 540 ℃, and holding time 80min, air cooling finish the heat treatment for cast tube to room temperature;
10) interior boring is taken off outward, the machining of inside and outside circle grinding to carrying out through heat treated cast tube pipeline, obtains the abrasion-proof pipe body;
B) preparation inwall resistance to high temperature oxidation corrosion-inhibiting coating
1) raw material of the following chemical component weight ratio of selection:
The MTES of 24 weight portions;
The dimethyldiethoxysilane of 8 weight portions;
0.9 the NaOH of weight portion;
2.5 the Al of weight portion
2O
3
0.36 the ZnO of weight portion;
The isopropanol of 10 weight portions;
4.8 the water of weight portion;
2) MTES in the above-mentioned raw materials and dimethyldiethoxysilane are mixed, the even back of magnetic agitation adds the NaOH of corresponding proportioning in the raw material, and at room temperature stirring reaction is 16 hours;
3) the slow water that adds corresponding proportioning in the raw material in the prepared solution of above-mentioned steps after finishing, at room temperature continues reaction 2 hours, obtains the water glass adhesive liquid solution;
4) with the Al in the above-mentioned raw materials
2O
3Join in the isopropanol with ZnO, adopt ultrasound to disperse, obtain finely dispersed Al
2O
3, the ZnO dispersion liquid, join then in the water glass adhesive liquid solution that above-mentioned steps makes, stirring under the room temperature obtains the water glass nano composite dope;
5) with steps A) the abrasion-proof pipe inner body wall that makes carries out derusting by sandblasting or chemical pickling rust cleaning; clean; phosphatization is handled; adopt spin-coating method to be applied on the pipeline body inwall the synthetic water glass nano composite dope that obtains of above-mentioned steps; treat that rete is at room temperature after the drying; solidify and obtain stable rete; adopt nitrogen as shielding gas again; pipe temperature is elevated to 400 ℃ and kept 30 minutes; all the time in the environment of shielding gas, cool off then; obtain resistance to high temperature oxidation anti-corrosive film coating layer at inner-walls of duct, finally make the wear-resisting cast tube with resistance to high temperature oxidation anticorrosive coat.
The abrasion-proof pipe that above-described embodiment is made carries out hardness and bending strength test, and recording hardness is 68HRC, and resistance to flexure is 1432Mp.Corrosion-inhibiting coating is tested, the layer of lacquer film hardness is 7H again, is immersed in 10% water 4 days coatings and does not bubble or obscission, is carrying 680 ℃ smoke mixture to measure after 2 hours, and the pipeline internal layer is not oxidized.
Embodiment 3
A) preparation abrasion-proof pipe body
1) draw materials, select the raw material of following chemical component weight percentage:
C： 3.7%， V： 8.5%，
W： 3.2%， Mo： 2.4%，
Cr： 8.9%， RE： 0.4%，
Mn：0.3%， Si： 1.0%，
B：0.01%， Al： 0.8%，
Nb： 2.4%， Ni： 0.3%，
Surplus is the inevitable impurity of Fe and trace;
2) with ordinary scrap steel, chromic carbide iron, ferro-niobium, ferronickel, ferrotungsten, molybdenum-iron, ferrochrome, ferro-niobium, ferronickel and the fusing of ferromanganese Hybrid Heating, with the pig iron or graphite carburetting, Hybrid Heating is fused into molten steel, and the molten clear back of molten steel adds ferrosilicon and carries out pre-deoxidation;
3) according to the material composition proportioning, the stokehold is adjusted to branch and is warming up to 1630 ℃ after qualified, adds aluminium block again and carries out final deoxidation, then comes out of the stove;
4) rare earth ferrosilicon alloy, ferro-boron, vanadium iron are placed the casting ladle bottom, with the method that pours in the bag molten steel composite inoculating is handled, the high-carbon high-alloy steel molten steel is prefabricated to be finished;
5) prefabricated molten steel being poured in the horizontal centrifugal casting machine spun casting, to become thickness be the high-carbon high-alloy steel pipe of 35mm; The centrifugal pressure casting casting mold adopts the double-level-metal type;
6) after spun casting was finished, the parking demoulding when the cast tube inner wall temperature drops to below 200 ℃ separated cast tube and takes out with type tube;
7) earlier cast tube being quenched, is 910 ~ 950 ℃ of insulation 220min down in temperature, then with the rate of cooling oil cooling of about 70 ℃/S to room temperature, carry out high-temperature tempering again, cast tube is heated to 740 ℃ and insulation 180min, and stove is chilled to room temperature, thereby finishes modified heat treatment;
8) will be heated to 980 ℃ of temperature and insulation 130min through the cast tube of above-mentioned processing again, then with the rate of cooling oil cooling of about 85 ℃/S to room temperature, thereby make the alloying element solid solution in parent metal, finish solution strengthening heat treatment;
9) carry out double tempering dispersion hardening heat treatment process at last again: one time tempering temperature is 400 ℃, and holding time is 90min, and air cooling is to room temperature; The double tempering temperature is 550 ℃, and holding time 90min, air cooling finish the heat treatment for cast tube to room temperature;
10) interior boring is taken off outward, the machining of inside and outside circle grinding to carrying out through heat treated cast tube pipeline, obtains the abrasion-proof pipe body;
B) preparation inwall resistance to high temperature oxidation corrosion-inhibiting coating
1) raw material of the following chemical component weight ratio of selection:
The MTES of 25 weight portions;
The dimethyldiethoxysilane of 7 weight portions;
0.9 the NaOH of weight portion;
The Al of 3 weight portions
2O
3
0.4 the ZnO of weight portion;
The isopropanol of 11 weight portions;
The water of 5 weight portions;
2) MTES in the above-mentioned raw materials and dimethyldiethoxysilane are mixed, the even back of magnetic agitation adds the NaOH of corresponding proportioning in the raw material, and at room temperature stirring reaction is 16 hours;
3) the slow water that adds corresponding proportioning in the raw material in the prepared solution of above-mentioned steps after finishing, at room temperature continues reaction 2 hours, obtains the water glass adhesive liquid solution;
4) with the Al in the above-mentioned raw materials
2O
3Join in the isopropanol with ZnO, adopt ultrasound to disperse, obtain finely dispersed Al
2O
3, the ZnO dispersion liquid, join then in the water glass adhesive liquid solution that above-mentioned steps makes, stirring under the room temperature obtains the water glass nano composite dope;
5) with steps A) the abrasion-proof pipe inner body wall that makes carries out derusting by sandblasting or chemical pickling rust cleaning; clean; phosphatization is handled; adopt spin-coating method to be applied on the pipeline body inwall the synthetic water glass nano composite dope that obtains of above-mentioned steps; treat that rete is at room temperature after the drying; solidify and obtain stable rete; adopt nitrogen as shielding gas again; pipe temperature is elevated to 400 ℃ and kept 30 minutes; all the time in the environment of shielding gas, cool off then; obtain resistance to high temperature oxidation anti-corrosive film coating layer at inner-walls of duct, finally make the wear-resisting cast tube with resistance to high temperature oxidation anticorrosive coat.
The abrasion-proof pipe that above-described embodiment is made carries out hardness and bending strength test, and recording hardness is 69HRC, and resistance to flexure is 1421Mp.Corrosion-inhibiting coating is tested, the layer of lacquer film hardness is 7H again, is immersed among the 10%NaOH 4 days coatings and does not bubble or obscission, is carrying 600 ℃ smoke mixture to measure after 2 hours, and the pipeline internal layer is not oxidized.
In above-described embodiment: each raw material that adopts is the commercially available prod.
The invention is not restricted to above-described embodiment, content of the present invention is described all can implement and have described good result.
Claims (1)
1. an anticorrosion heat resistant and wear resistant cast tube is characterized in that it comprises the corrosion-inhibiting coating of abrasion-proof pipe body and inner-walls of duct,
Described abrasion-proof pipe body has the raw material of following chemical component weight percentage:
C：1.6~3.7%， V：4.5~8.5%，
W：3.2~9.1%， Mo：2.4~7.6%，
Cr：3.8~8.9%， RE：0.15~0.4%，
Mn：0.3~0.7%， Si：0.05~1.0%，
B：0.01-0.02%， Al：0.2~0.8%，
Nb：0.08~2.4%， Ni：0.1~0.3%，
Surplus is the inevitable impurity of Fe and trace;
The corrosion-inhibiting coating of described inner-walls of duct has the raw material of following chemical component weight ratio:
The MTES of 23 ~ 25 weight portions;
The dimethyldiethoxysilane of 7 ~ 8 weight portions;
0.8 the NaOH of ~ 0.9 weight portion;
The Al of 2 ~ 3 weight portions
2O
3
0.3 the ZnO of ~ 0.4 weight portion;
The isopropanol of 9 ~ 11 weight portions;
The water of 4 ~ 5 weight portions;
And described abrasion-resistant metal pipeline with inner anticorrosioning coating is prepared from by following steps:
A) preparation abrasion-proof pipe body
1) draws materials according to the component of above-mentioned pipeline body;
2) with ordinary scrap steel, chromic carbide iron, ferro-niobium, ferronickel, ferrotungsten, molybdenum-iron, ferrochrome, ferro-niobium, ferronickel and the fusing of ferromanganese Hybrid Heating, with the pig iron or graphite carburetting, Hybrid Heating is fused into molten steel, and the molten clear back of molten steel adds ferrosilicon and carries out pre-deoxidation;
3) according to the material composition proportioning, the stokehold is adjusted to branch and is warming up to 1580-1630 ℃ after qualified, adds aluminium block again and carries out final deoxidation, then comes out of the stove;
4) rare earth ferrosilicon alloy, ferro-boron, vanadium iron are placed the casting ladle bottom, with the method that pours in the bag molten steel composite inoculating is handled, the high-carbon high-alloy steel molten steel is prefabricated to be finished;
5) also prefabricated molten steel is poured in the type tube through type tube in the centrifuge placement, it is the steel pipe of 30 ~ 35mm that spun casting becomes thickness;
6) after spun casting was finished, the parking demoulding when the cast tube inner wall temperature drops to below 200 ℃ separated cast tube and takes out with type tube;
7) earlier cast tube is quenched, be 910 ~ 950 ℃ in temperature and be incubated 180 ~ 220min down, then with the rate of cooling oil cooling of about 55 ~ 70 ℃/S to room temperature, carry out high-temperature tempering again, cast tube is heated to 720 ~ 740 ℃ and be incubated 150 ~ 180min, stove is chilled to room temperature, thereby finishes modified heat treatment;
8) will be heated to 930 ~ 980 ℃ of temperature again through the cast tube of above-mentioned processing and be incubated 110 ~ 130min, then with the rate of cooling oil cooling of about 70 ~ 85 ℃/S to room temperature, thereby make the alloying element solid solution in parent metal, finish solution strengthening heat treatment;
9) carry out double tempering dispersion hardening heat treatment process at last again: one time tempering temperature is 350 ~ 400 ℃, and holding time is 70 ~ 90min, and air cooling is to room temperature; The double tempering temperature is 520 ~ 550 ℃, and holding time 70 ~ 90min, air cooling finish the heat treatment for cast tube to room temperature;
10) interior boring is taken off outward, the machining of inside and outside circle grinding to carrying out through heat treated cast tube pipeline, obtains the abrasion-proof pipe body;
B) preparation inner wall anti-corrosive coating
1) draws materials according to the raw material of above-mentioned inner wall anti-corrosive coating;
2) MTES in the above-mentioned raw materials and dimethyldiethoxysilane are mixed, the even back of magnetic agitation adds the NaOH of corresponding proportioning in the raw material, and at room temperature stirring reaction is 16 hours;
3) the slow water that adds corresponding proportioning in the raw material in the prepared solution of above-mentioned steps after finishing, at room temperature continues reaction 2 hours, obtains the water glass adhesive liquid solution;
4) with the Al in the above-mentioned raw materials
2O
3Join in the isopropanol with ZnO, adopt ultrasound to disperse, obtain finely dispersed Al
2O
3, the ZnO dispersion liquid, join then in the water glass adhesive liquid solution that above-mentioned steps makes, stirring under the room temperature obtains the water glass nano composite dope;
5) with steps A) the abrasion-proof pipe inner body wall that makes carries out derusting by sandblasting or chemical pickling rust cleaning; clean; phosphatization is handled; adopt spin-coating method to be applied on the pipeline body inwall the synthetic water glass nano composite dope that obtains of above-mentioned steps; treat that rete is at room temperature after the drying; solidify and obtain stable rete; adopt nitrogen as shielding gas again; pipe temperature is elevated to 400 ℃ and kept 30 minutes; all the time in the environment of shielding gas, cool off then; obtain resistance to high temperature oxidation anti-corrosive film coating layer at inner-walls of duct, finally make the wear-resisting cast tube with resistance to high temperature oxidation anticorrosive coat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310230639.4A CN103267176B (en) | 2013-06-09 | 2013-06-09 | A kind of corrosion-resistant high-temperature wear-resistant cast pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310230639.4A CN103267176B (en) | 2013-06-09 | 2013-06-09 | A kind of corrosion-resistant high-temperature wear-resistant cast pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103267176A true CN103267176A (en) | 2013-08-28 |
| CN103267176B CN103267176B (en) | 2015-09-30 |
Family
ID=49010820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310230639.4A Active CN103267176B (en) | 2013-06-09 | 2013-06-09 | A kind of corrosion-resistant high-temperature wear-resistant cast pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103267176B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197129A (en) * | 2014-07-25 | 2014-12-10 | 深圳市清源管道科技发展有限公司 | A novel reinforced concrete drainage pipe and a manufacturing method thereof |
| CN105255316A (en) * | 2015-11-05 | 2016-01-20 | 苏州明轩地坪涂料有限公司 | Rust-proof anti-corrosion coating |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2930710A (en) * | 1957-04-16 | 1960-03-29 | Exxon Research Engineering Co | Metal article with a corrosion and marine borer resistant coating |
| JPS6141721A (en) * | 1984-07-31 | 1986-02-28 | Kubota Ltd | Production of high-strength ductile cast iron pipe having high ductility |
| US4611635A (en) * | 1984-02-22 | 1986-09-16 | Shaw Industries Ltd. | Coated pipe having bending capability |
| CN101892010A (en) * | 2009-05-22 | 2010-11-24 | 北京化工大学 | High-temperature-hot-water corrosion resisting coating |
| CN103013293A (en) * | 2012-12-21 | 2013-04-03 | 天津美士邦涂料化工有限公司 | High-heat-resisting and anti-corrosive paint and application thereof |
| CN103031036A (en) * | 2012-12-17 | 2013-04-10 | 吕龙云 | Thick coating type epoxy corrosion-resistant coating certified by Water Regulation Advisory Scheme (WRAS) |
-
2013
- 2013-06-09 CN CN201310230639.4A patent/CN103267176B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2930710A (en) * | 1957-04-16 | 1960-03-29 | Exxon Research Engineering Co | Metal article with a corrosion and marine borer resistant coating |
| US4611635A (en) * | 1984-02-22 | 1986-09-16 | Shaw Industries Ltd. | Coated pipe having bending capability |
| JPS6141721A (en) * | 1984-07-31 | 1986-02-28 | Kubota Ltd | Production of high-strength ductile cast iron pipe having high ductility |
| CN101892010A (en) * | 2009-05-22 | 2010-11-24 | 北京化工大学 | High-temperature-hot-water corrosion resisting coating |
| CN103031036A (en) * | 2012-12-17 | 2013-04-10 | 吕龙云 | Thick coating type epoxy corrosion-resistant coating certified by Water Regulation Advisory Scheme (WRAS) |
| CN103013293A (en) * | 2012-12-21 | 2013-04-03 | 天津美士邦涂料化工有限公司 | High-heat-resisting and anti-corrosive paint and application thereof |
Non-Patent Citations (2)
| Title |
|---|
| 李秋萍: "燃气钢管三层结构PE防腐涂层的质量控制", 《煤气与热力》, vol. 25, no. 8, 31 August 2005 (2005-08-31), pages 24 - 28 * |
| 祝馨: "钢制管道三层聚乙烯结构的防腐质量控制", 《涂料工业》, vol. 41, no. 6, 30 June 2011 (2011-06-30), pages 67 - 69 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197129A (en) * | 2014-07-25 | 2014-12-10 | 深圳市清源管道科技发展有限公司 | A novel reinforced concrete drainage pipe and a manufacturing method thereof |
| CN104197129B (en) * | 2014-07-25 | 2017-08-22 | 深圳市清源管道科技发展有限公司 | A kind of novel reinforced concrete drainage pipe and its manufacture method |
| CN105255316A (en) * | 2015-11-05 | 2016-01-20 | 苏州明轩地坪涂料有限公司 | Rust-proof anti-corrosion coating |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103267176B (en) | 2015-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103277629B (en) | A kind of wear-resistant cast pipe with high-temperature oxidation resistant corrosion-resistant layer | |
| CN103290306B (en) | Wear, corrosion and rust resistant metal pipeline | |
| CN103305773B (en) | Preparation method of anti-corrosion high-temperature-resistant wear-resistant casting pipe | |
| CN103276282B (en) | Fabrication method of anti-corrosive and wear-resistant pipeline for delivering minerals | |
| CN103290336B (en) | Preparation method of wear-resistant cast pipe with high-temperature oxidation resistant corrosion-resistant layer | |
| CN101497966B (en) | High-hardness hypereutectic high chromium, manganese, molybdenum and tungsten alloy wear resistant steel material and use thereof | |
| CN101818312B (en) | Corrosion resistant heavy rail steel with excellent strength-toughness, fatigue resistance and abrasive resistance | |
| CN103276281B (en) | Preparation method for wear resistant metal pipeline with internal anticorrosive coating | |
| CN102418065A (en) | Composite metal carbide wear-resistant coating and preparation process thereof | |
| CN104694829A (en) | High-toughness wear-resisting medium manganese steel hot rolled plate and manufacturing method thereof | |
| CN104152808A (en) | Boron-containing high-silicon bainite wear-resistant corrosion-resistant alloy and manufacturing method thereof | |
| CN103290332B (en) | A kind of abrasion-resistant metal pipeline with inner anticorrosioning coating | |
| CN104313454A (en) | Multi-component microalloyed bainite gray cast iron, cylinder liner and preparation method thereof | |
| CN105154787A (en) | High-vanadium wear-resistant alloy roller gear and preparation method thereof | |
| CN105586546A (en) | Machining manufacturing process for spline shaft made of high-manganese steel | |
| CN105316589A (en) | High-tenacity boron-containing high-chromium abrasion-resistant alloy and preparation method thereof | |
| CN102268586B (en) | Corrosion-resistant alloy cast iron and preparation method thereof | |
| CN103276283B (en) | A kind of anticorrosion antiwear pipeline of conveying mineral | |
| CN103267176B (en) | A kind of corrosion-resistant high-temperature wear-resistant cast pipe | |
| CN102978536B (en) | High-vanadium high-speed steel | |
| CN102230144B (en) | Steels and application thereof | |
| CN104178704B (en) | A kind of alloy material for boats and ships valve and preparation method thereof | |
| CN108118245A (en) | A kind of wear resistant toothed plate new low-alloy wear-resistant steel and its heat treatment method | |
| CN103305774B (en) | Manufacturing method of metal abrasion-proof anti-corrosion anti-rust pipeline | |
| CN103540862A (en) | Abrasion-resistant metal pipeline with internal anti-corrosion coating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: WENZHOU FUCHENG CONSTRUCTION ENGINEERING CO., LTD. Free format text: FORMER OWNER: WANG MANYU Effective date: 20150817 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Jiandong Inventor after: Lin Jian Inventor after: Dai Jinrui Inventor after: Chen Xianguang Inventor after: Guan Xiaoqiu Inventor before: Wang Manyu |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WANG MANYU TO: CHEN JIANDONG LIN JIAN DAI JINRUI CHEN XIANGUANG GUAN XIAOQIU |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20150817 Address after: 325000 Wenzhou, Longwan, Ling Ling Ling West Road, No. 228 Applicant after: Fu Cheng construction engineering corporation, Ltd of Wenzhou City Address before: 312365 Zhejiang province Shaoxing Sanyou Village Bridge Songxia town north of Shangyu City No. 91 Applicant before: Wang Manyu |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: Room 301, building 2, No.145, Shangjiang Road, Puzhou street, Longwan District, Wenzhou City, Zhejiang Province Patentee after: WENZHOU FUCHENG CONSTRUCTION ENGINEERING Co.,Ltd. Address before: 325000 No. 228 Ling Xi Road, Ling Kun Town, Longwan District, Zhejiang, Wenzhou Patentee before: WENZHOU FUCHENG CONSTRUCTION ENGINEERING Co.,Ltd. |