CN102128312A - Taper pipe for concrete pumping device and manufacturing method thereof - Google Patents
Taper pipe for concrete pumping device and manufacturing method thereof Download PDFInfo
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- CN102128312A CN102128312A CN2010106205488A CN201010620548A CN102128312A CN 102128312 A CN102128312 A CN 102128312A CN 2010106205488 A CN2010106205488 A CN 2010106205488A CN 201010620548 A CN201010620548 A CN 201010620548A CN 102128312 A CN102128312 A CN 102128312A
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- pipe
- taper pipe
- outer tube
- steel
- taper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/52—Adaptations of pipes or tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/32—Conveying concrete, e.g. for distributing same at building sites
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/02—Rigid pipes of metal
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention relates to a taper pipe for a concrete pumping device. The taper pipe comprises an inner pipe and an outer pipe which are made from different metal materials, the rigidity of the inner pipe is higher than that of the outer pipe; and the toughness of the outer pipe is higher than that of the inner pipe; materials can be used for the inner pipe comprise medium and high carbon low-alloy steel, wear-resisting cast steel, wear-resisting cast iron and tool steel; and the materials of the outer pipe can be common carbon steel and low-carbon alloy steel. The invention also relates to a method for manufacturing the taper pipe. A double-layer composite taper pipe provided by the invention has the advantages that the wall thickness design of a thin large end and a thick small end conrresponds with the design principle of equal service life; the raw materials are saved; the inner pipe has high through quenching capability, smooth surface, and high rigidity and good wear resistance; the outer pipe has low rigidity, good toughness and high capability of shock resistance, and can protect the inner pipe well; and simultaneously the comprehensive requirement on the abrasion resistance and toughness of the taper pipe for the pumping device is satisfied.
Description
Technical field
The present invention relates to the engineer operation device, be specifically related to a kind of concrete pumping equipment Taper Pipe and manufacture method thereof.
Background technique
Along with the fast development of concrete pumping technique, efficiency of construction further improves, and the construction project cycle shortens, and people had higher requirement to pump truck life-span and stability in use, and the improvement of the material property of equipment key position seems particularly important.Taper Pipe is as the critical component that influences pump truck life-span and stability in use, and the built-up welding of many at present employing internal surfaces improves wear resistance.This preparation process's product energy consumption height, cost height, of poor quality, environmental pollution is serious, a little less than the market competitiveness, have the problem that combination interface position and thickness can not accurately be controlled and wall unevenness is even inevitably in the complicated simultaneously built-up welding operation.In addition, also there is the potential safety hazard of a large amount of serious threat pumping equipment life-spans and construction stability in the built-up welding Taper Pipe: (1) built-up welding gained Taper Pipe rough inner surface, many overlaps welding slag, welding lines are dark, therefore flow passage resistance force of waterproof is big, easily cause plugging, influence the engineering construction progress, even adopt the mechanism hand longitudinal weld, the still difficult satisfactory result that reduces internal surface overlap and flow passage resistance force of waterproof that reaches; (2) built-up welding complex procedures, energy consumption is big, the activity duration is long, poor controllability, is difficult to guarantee layer thickness and uniformity; (3) position the most easy to wear, Taper Pipe two ends causes the life-span to shorten because of welding to be discontented with; (4) overlay cladding thickness is limited, and built-up welding is blocked up to cause coming off and the plugging phenomenon of overlay cladding easily, so is difficult to realize by the work of increase layer thickness with further raising wear resistance.
The present inventor finds to satisfy the appearance of the double-deck Taper Pipe of concrete pumping equipment needs as yet.
Summary of the invention
At the problem that prior art exists, the inventor proposes a kind of two-layer compound Taper Pipe, to overcome the defective that the complicated difficulty of existing built-up welding Taper Pipe bead-welding technology is controlled, flow passage resistance force of waterproof is big.
Pipe and outer tube in double-deck Taper Pipe according to the present invention comprises, interior pipe is formed by different metallic material with outer tube, and the hardness of interior pipe is higher than outer tube, and the toughness of outer tube is higher than interior pipe.
The material that can be used for inner tube has multiple, comprising: middle and high carbon low alloy steel, abrasion resistant cast steel, wear resisting cast iron and tool steel; Outer tube can be used Ordinary Steel, low-carbon alloy steel.
In a kind of embodiment, the internal layer Taper Pipe adopts medium carbon low alloy steel, and hardenability is good, and hardness height after the heat treatment, wear resistance are good.Outer tube adopts Ordinary Steel, and its carbon content is low, still very low, the good toughness of hardness, strong shock resistance after the heat treatment, and internally pipe plays a very good protection.
The method of making double-deck Taper Pipe of the present invention can have multiple.In one approach, with the method formation individual layer conical pipe of two kinds of materials, be compounded to form double-deck Taper Pipe by certain mode then, earlier at last with the product integral quenching by casting or mold pressing.Compound mode comprises that cold-drawn, gluing, extruding are compound, metallurgy combination etc.Another kind method is earlier to be bimetallic tube with two individual layer straight tubes are compound, passes through induction heating then and by the enlarging moulding of conical die, obtains the double-deck Taper Pipe of required tapering, passes through quenching technical at last, improves the microstructure of Taper Pipe.A kind of method in back is preferred, because, adopting this mode, inner and outer pipe can realize that no gap closely cooperates.Gained two-layer compound Taper Pipe is not wait wall thickness, and big end is thin, and small end is thick, meets the equivalent life design principle, saves material, because small end is the rapid wear end.
No matter above-mentioned which kind of method all needs the Taper Pipe after compound is carried out Quenching Treatment.The purpose of quenching is to make to manage very high martensite and the bainite structure of formation hardness in hardenability preferably that the weak outer tube of hardenability then is pearlite and ferritic structure, low, the good toughness of hardness, strong shock resistance.
In a kind of embodiment, inner tube material is selected the 55SiMn steel of 3-12mm thickness for use, and outer tube material is selected 20 steel of 2-6mm thickness for use; By complex machine inner and outer pipes is combined with each other earlier, by the moulding of Taper Pipe machine induction heating, obtains required tapering then, the Taper Pipe total thickness is controlled between the 5-16mm.
In another kind of embodiment, inner tube material is selected wear resisting cast iron or cast steel, casting for use; Outer tube material is selected 20 steel for use, and compression molding adds an injecting glue layer between inside and outside two pipes.
In another kind of embodiment, inner tube material is selected 55SiMn for use, and outer tube material is selected 20 steel for use; With the Copper Foil is intermediate layer material, adopts cold-drawn-liquid-solid phase diffusion composite methods to realize the metallurgical compound and moulding between the inner and outer pipes.
The present invention proposes does not wait wall two-layer compound Taper Pipe, and two kinds of material uses performance advantage is separately carried out layering and made up, and can overcome shortcoming separately, gives full play to the advantage of combined material.The interior pipe through hardening ability of compound Taper Pipe is strong; smooth surface, hardness height, wear resistance are good, low, the good toughness of outer tube hardness, strong shock resistance; internally pipe plays a very good protection, thereby has satisfied the composite request of pumping equipment to Taper Pipe wear resistance and toughness simultaneously.The selection process arrangement has realized that the no gap of internal and external layer closely cooperates, and big end is thin, and the wall thickness design that small end is thick meets the equivalent life design principle, saves material.
Description of drawings
Fig. 1 is the schematic representation of the exemplary embodiments of the compound Taper Pipe of the present invention;
Fig. 2 is another embodiment's of the compound Taper Pipe of the present invention a schematic representation;
Fig. 3 is another embodiment's of the compound Taper Pipe of the present invention a schematic representation.
Embodiment
In order to produce the double-deck Taper Pipe that satisfies the concrete pumping equipment requirement, the inventor has done a lot of trials.In a kind of trial scheme, process earlier the inside and outside Taper Pipe of desired thickness and diameter respectively by compression molding, then interior pipe is pressed into outer tube.Though this mode can obtain double-deck Taper Pipe, the adaptation between the inner and outer pipe is not good, is easy to leave the space.And, in order to obtain, need the accurately caliber of control inner and outer pipes in conjunction with good bimetallic tube.
In another embodiment, obtain inner tube material by being cast as awl; Obtain outer tube by compression molding, then interior pipe is pressed into outer tube, form the two-layer compound Taper Pipe.Limited by casting technique, interior pipe must guarantee the thickness greater than 5mm because too thin meeting when causing casting metal liquid do not flow to the model bottom with regard to condensation, produce various casting defects, can not get the workpiece of required size, total thickness is between 10-16mm.This manufacture method need consume relatively large inner tube material.
In another embodiment, form outer Taper Pipe, the gained outer tube is put into die cavity, with wear resisting cast iron or cast steel casting inner tube material, form local metallurgy combination, compound back Quenching Treatment by mold pressing.But casting operation difficulty is big in this technology, and efficient is low, cost height, work under bad environment.
The inventor selects by wide variety of materials and tubing thickness is selected, though also can obtain double-deck Taper Pipe, finds to be difficult to produce expeditiously the double-deck Taper Pipe of concrete pumping equipment of parameter, stable performance by said method.
In a kind of optimum scheme of the present invention, make double-deck Taper Pipe by following technology:
(1) compound drawing: the interior pipe that is straight tube and the outer tube that will process earlier carry out compound drawing, obtain the two-layer compound straight tube.
(2) induction heating moulding: the double-deck straight tube that obtains in the step (1) is carried out induction heating through inductor coil, pushed away a solid cone shaped mould after the heating immediately, the shape and size of this mould are suitable with the inner space of interior pipe, and make the slightly larger in diameter of the little head end of mould in the internal diameter of the little head end of interior pipe.The layout of mould should make and double-deck straight tube coaxial line.The little head end of mould is preferably near the end of inductor coil, can be pulled to the little head end of mould after making double-deck straight tube be heated immediately.After whole straight tube is pushed over mould, promote the double-deck Taper Pipe of moulding again from the opposite direction of mould, itself and mould are thrown off.
(3) integral quenching: the compound Taper Pipe integral quenching that will obtain, the interior pipe that hardenability is strong forms very high martensite and the bainite of hardness, and the weak outer tube of hardenability is the pearlite and the ferrite of low hardness.
Adopt this method, can the compound straight tube of rapid heating by inductor coil, reduce its resistance of deformation, be pushed into solid taper reaming die by external force again, realize the moulding of compound Taper Pipe.By changing the size and the tapering of reaming die, can produce the Taper Pipe of different size length and tapering fast.Owing to be the coaxial reaming moulding that the compound straight tube of reciprocity wall carries out, the big end wall thickness of gained Taper Pipe is in small end, the interior pipe of this not uniform thickness just in time satisfies the demand of the serious wear of Taper Pipe small end in use, has both prolonged the working life of Taper Pipe, has saved material again.
As shown in Figure 1, interior pipe 2 is selected medium carbon low alloy steel for use, outer tube 1 adopts ordinary low-carbon steel, earlier that two kinds of steel pipes that adhere to specification are compound through drawing, obtain the two-layer compound steel pipe, again composite pipe is passed through the moulding of Taper Pipe machine induction heating, obtain required tapering, and realize that the Taper Pipe internal and external layer does not have the gap and combines closely.The two-layer compound Taper Pipe is not wait wall thickness, and big end is thin, and small end is thick.With the product integral quenching, hardenability is managed preferably form martensite and bainite structure at last, obtain higher hardness and wear resistance, the weak outer tube of hardenability then is pearlite and ferritic structure, low, the good toughness of hardness, strong shock resistance.
Inner tube material is selected wear resisting cast iron, the abrasion resistant cast steel of thickness greater than 5mm for use, is cast as tapered; Outer tube material is selected 20 steel, compression molding for use; Then interior pipe is pressed into outer tube, forms the two-layer compound Taper Pipe.Limited by casting technique, interior pipe must guarantee the thickness greater than 5mm because too thin meeting when causing casting metal liquid do not flow to the model bottom with regard to condensation, produce various casting defects, can not get the workpiece of required size, total thickness is between 10-16mm.
Outer tube is selected 20 steel for use, and being molded into thickness is the individual layer Taper Pipe of 2-6mm, and the gained outer tube is put into die cavity, with wear resisting cast iron or cast steel casting inner tube material, forms local metallurgy combination, compound back Quenching Treatment.
Embodiment 4
As shown in Figure 2, interior pipe 2 material selection wear resisting cast irons, steel, casting; Outer tube 1 material selection 20 steel, compression molding.Add an injecting glue layer 5 between the inner and outer pipes, inner and outer pipe is bonded together form the two-layer compound Taper Pipe.The injecting glue layer material is an epoxy resin, adopts spring reset injecting glue device or glue-injection machine etc. to be injected between the inside and outside two-layer pipe in the injecting glue slurry.
As shown in Figure 2, interior pipe 2 material selection 55SiMn, outer tube 1 material selection 20 steel; With the Copper Foil is mesosphere 5 materials, adopts cold-drawn-liquid-solid phase diffusion composite methods to realize the metallurgical compound and moulding between the inner and outer pipes.
Fig. 3 illustrates the compound Taper Pipe of band adpting flange.Adpting flange 3,4 is provided with wear-resistant sleeve 41 at inwall, and greater than the inner diameter at the adpting flange 3,4 of this end, this mating face is corresponding to the corresponding seam end face of adpting flange at the diameter at place, end for the mating face between interior pipe 2 and the outer tube 1.
Claims (13)
1. a concrete pumping equipment Taper Pipe is characterized in that comprising interior pipe (2) and outer tube (1), and described interior pipe (2) is formed by different metallic material with outer tube (1), and the hardness of described interior pipe is higher than described outer tube, and the toughness of described outer tube is higher than described interior pipe.
2. Taper Pipe according to claim 1 is characterized in that, described interior pipe (2) is formed by middle and high carbon low alloy steel, abrasion resistant cast steel, wear resisting cast iron or tool steel.
3. Taper Pipe according to claim 1 is characterized in that, has mesosphere (5) between pipe (2) and the outer tube (1) in described.
4. Taper Pipe according to claim 1 is characterized in that, described mesosphere (5) are copper foil layer or injecting glue layer.
5. Taper Pipe according to claim 1 is characterized in that, described compound Taper Pipe does not wait wall thickness, and big end is thin, and small end is thick.
6. according to claim 1 or 3 described Taper Pipes, it is characterized in that, also comprise the adpting flange (3,4) that is positioned at the end, described adpting flange is provided with wear-resistant sleeve (41) at inwall, greater than the inner diameter at the adpting flange (3,4) of this end, this mating face or mesosphere are corresponding to the corresponding seam end face of described adpting flange at the diameter at end place for mating face in described between pipe and the outer tube or mesosphere.
7. be used to make the method for the described Taper Pipe of claim 1, it is characterized in that may further comprise the steps:
By compound after compound aftershaping or the first moulding earlier, obtain the double-deck Taper Pipe of pre-shaping;
The double-deck Taper Pipe of gained pre-shaping is carried out Quenching Treatment.
8. method according to claim 7 is characterized in that, in the step that obtains the double-deck Taper Pipe of pre-shaping, comprising:
It is compound that pipe and outer tube in described are carried out drawing, forms the equal diameter double-layer composite pipe;
With the induction heating moulding on the Taper Pipe machine of described equal diameter double-layer composite pipe, pushed away a taper die then, cooperate double-deck Taper Pipe with the no gap that forms required tapering;
With the compound Taper Pipe integral quenching that obtains.
9. method according to claim 8 is characterized in that inner tube material is selected medium carbon low alloy steel for use, outer tube material low carbon steel.
10. method according to claim 7 is characterized in that, inner tube material is selected the 55SiMn steel of 3-12mm thickness for use, and outer tube material is selected 20 steel of 2-6mm thickness for use; Earlier form required Taper Pipe by the moulding of Taper Pipe machine induction heating respectively, then pipe in described is pressed into described outer tube, the Taper Pipe total thickness is controlled between the 5-16mm.
11. method according to claim 7 is characterized in that, described outer tube is selected 20 steel for use, being molded into thickness is the individual layer Taper Pipe of 2-6mm, and the gained outer tube is put into die cavity, is cast into interior pipe with wear resisting cast iron or cast steel, form local metallurgy combination, then Quenching Treatment.
12. method according to claim 7, wherein, inner tube material is selected wear resisting cast iron or cast steel casting for use; Outer tube material selects for use 20 punching blocks molded, adds an injecting glue layer between inside and outside two pipes.
13. method according to claim 7, wherein, inner tube material is selected 55SiMn for use, and outer tube material is selected 20 steel for use; With the Copper Foil is intermediate layer material, adopts cold-drawn-liquid-solid phase diffusion composite methods to realize the metallurgical compound and moulding between the inner and outer pipes.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106205488A CN102128312A (en) | 2010-12-31 | 2010-12-31 | Taper pipe for concrete pumping device and manufacturing method thereof |
| PCT/CN2011/076600 WO2012088861A1 (en) | 2010-12-31 | 2011-06-29 | Taper pipe for concrete pumping equipment and method for manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106205488A CN102128312A (en) | 2010-12-31 | 2010-12-31 | Taper pipe for concrete pumping device and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102128312A true CN102128312A (en) | 2011-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010106205488A Pending CN102128312A (en) | 2010-12-31 | 2010-12-31 | Taper pipe for concrete pumping device and manufacturing method thereof |
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| CN (1) | CN102128312A (en) |
| WO (1) | WO2012088861A1 (en) |
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| CN102297304A (en) * | 2011-08-11 | 2011-12-28 | 李宗仙 | Concrete delivery pipe and manufacturing method thereof |
| CN102494223A (en) * | 2011-12-12 | 2012-06-13 | 攀枝花钢城集团有限公司 | Method for repairing hole on abrasion-resistant pipeline in iron-smelting dust removal system through repair welding |
| CN102506237A (en) * | 2011-11-01 | 2012-06-20 | 三一重工股份有限公司 | Concrete conveying pipe and manufacturing method thereof |
| CN102506236A (en) * | 2011-10-21 | 2012-06-20 | 唐勇 | Bimetallic mechanical compound wear-resistant steel pipe and manufacturing method thereof |
| CN102537536A (en) * | 2012-02-09 | 2012-07-04 | 三一重工股份有限公司 | Composite bending-straight tube, concrete pump truck and manufacture method of composite bending-straight tube |
| CN102829254A (en) * | 2012-08-23 | 2012-12-19 | 枣庄市凯博机械制造有限公司 | Metallurgical fused composite concrete conveying pipe and manufacturing method thereof |
| CN102900897A (en) * | 2011-07-28 | 2013-01-30 | 锐迈管业有限公司 | Concrete pump truck elbow and machining technology thereof |
| CN103215588A (en) * | 2013-04-28 | 2013-07-24 | 上海高斯雷洁激光技术有限公司 | Laser-cladding processing method for increasing abrasive resistance of pipeline inner wall |
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| CN103615631A (en) * | 2013-11-19 | 2014-03-05 | 中联重科股份有限公司 | Concrete delivery straight pipe, method for manufacturing same and concrete pumping equipment |
| CN104075036A (en) * | 2014-06-25 | 2014-10-01 | 三一汽车制造有限公司 | Taper pipe and manufacturing method thereof and concrete pumping device |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4497673A (en) * | 1981-12-08 | 1985-02-05 | Esser-Werke Gmbh Vorm. Westmontan-Werke | Method of manufacturing double-walled tube |
| CN2219411Y (en) * | 1995-05-27 | 1996-02-07 | 西安建筑科技大学 | Bimetallic tube |
| JP2000291838A (en) * | 1999-04-08 | 2000-10-20 | Sekishin Sangyo Kk | Recapping taper tube for buried tube |
| CN1375362A (en) * | 2002-04-11 | 2002-10-23 | 中国石化集团洛阳石油化工工程公司 | Manufacture of bimetallic composite pipe |
| CN2594219Y (en) * | 2002-12-17 | 2003-12-24 | 孟炎 | High wear resistance composite pipe for concrete pump vehicle |
| CN201184457Y (en) * | 2008-04-28 | 2009-01-21 | 上海得锡乐汽车配件有限公司 | High wear resistant delivery conduit |
| CN101413604A (en) * | 2008-10-17 | 2009-04-22 | 江苏明雨耐磨材料有限公司 | Duplex-metal abrasion-proof bent tube and producing method thereof |
| CN101551041A (en) * | 2009-05-08 | 2009-10-07 | 陶斌 | Integrated welding seam-free taper pipe |
| CN101566256A (en) * | 2009-06-04 | 2009-10-28 | 大连合生科技开发有限公司 | Stainless steel composite steel pipe and manufacturing method thereof |
| CN201621414U (en) * | 2010-03-17 | 2010-11-03 | 三一重工股份有限公司 | Conveying bend pipe and concrete conveying machine with the conveying bend pipe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008061837A1 (en) * | 2008-12-15 | 2010-06-17 | Technische Universität Dresden | Internally coated molded part e.g. pipe bend, for conveying concrete in conveyor pipes, has sleeve pipe made of impact-resistant material, and inner coating made of mineral grain mixture and hardened binder that fills cavities in mixture |
-
2010
- 2010-12-31 CN CN2010106205488A patent/CN102128312A/en active Pending
-
2011
- 2011-06-29 WO PCT/CN2011/076600 patent/WO2012088861A1/en active Application Filing
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4497673A (en) * | 1981-12-08 | 1985-02-05 | Esser-Werke Gmbh Vorm. Westmontan-Werke | Method of manufacturing double-walled tube |
| CN2219411Y (en) * | 1995-05-27 | 1996-02-07 | 西安建筑科技大学 | Bimetallic tube |
| JP2000291838A (en) * | 1999-04-08 | 2000-10-20 | Sekishin Sangyo Kk | Recapping taper tube for buried tube |
| CN1375362A (en) * | 2002-04-11 | 2002-10-23 | 中国石化集团洛阳石油化工工程公司 | Manufacture of bimetallic composite pipe |
| CN2594219Y (en) * | 2002-12-17 | 2003-12-24 | 孟炎 | High wear resistance composite pipe for concrete pump vehicle |
| CN201184457Y (en) * | 2008-04-28 | 2009-01-21 | 上海得锡乐汽车配件有限公司 | High wear resistant delivery conduit |
| CN101413604A (en) * | 2008-10-17 | 2009-04-22 | 江苏明雨耐磨材料有限公司 | Duplex-metal abrasion-proof bent tube and producing method thereof |
| CN101551041A (en) * | 2009-05-08 | 2009-10-07 | 陶斌 | Integrated welding seam-free taper pipe |
| CN101566256A (en) * | 2009-06-04 | 2009-10-28 | 大连合生科技开发有限公司 | Stainless steel composite steel pipe and manufacturing method thereof |
| CN201621414U (en) * | 2010-03-17 | 2010-11-03 | 三一重工股份有限公司 | Conveying bend pipe and concrete conveying machine with the conveying bend pipe |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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