CN104676178A - Bisecting large single-layer and small double-layer type abrasion-resistant and impact-resistant elbow pipe - Google Patents
Bisecting large single-layer and small double-layer type abrasion-resistant and impact-resistant elbow pipe Download PDFInfo
- Publication number
- CN104676178A CN104676178A CN201510108121.2A CN201510108121A CN104676178A CN 104676178 A CN104676178 A CN 104676178A CN 201510108121 A CN201510108121 A CN 201510108121A CN 104676178 A CN104676178 A CN 104676178A
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- Prior art keywords
- resistant
- wear
- abrasion
- curved
- layer
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- Pending
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- 239000010410 layer Substances 0.000 title abstract description 37
- 238000005299 abrasion Methods 0.000 title abstract 6
- 239000002356 single layer Substances 0.000 title abstract 4
- 238000003466 welding Methods 0.000 claims abstract description 9
- 230000008719 thickening Effects 0.000 claims description 8
- 238000007493 shaping process Methods 0.000 claims description 2
- 239000003245 coal Substances 0.000 abstract description 4
- 238000005272 metallurgy Methods 0.000 abstract description 3
- 230000002411 adverse Effects 0.000 abstract 1
- 238000010923 batch production Methods 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 14
- 229910001018 Cast iron Inorganic materials 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 7
- 229910052804 chromium Inorganic materials 0.000 description 7
- 239000011651 chromium Substances 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000007935 neutral effect Effects 0.000 description 5
- 239000003082 abrasive agent Substances 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910001296 Malleable iron Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Classifications
-
- 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
- F16L43/00—Bends; Siphons
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a bisecting large single-layer and small double-layer type abrasion-resistant and impact-resistant elbow pipe, which consists of a bisecting double-layer elbow pipe, two abrasion-resistant connecting flanges, flange welding seams, a large elbow welding seam and a small elbow welding seam. The bisecting large single-layer and small double-layer type abrasion-resistant and impact-resistant elbow pipe has the advantages that the elbow pipe is suitable for the adverse environments of industries, such as buildings, mines, metallurgy, power, petroleum, coal and grain processing; by designing the bisecting large double-layer and small single-layer type particular structure, a protecting layer and an abrasion-resistant layer are arranged, the abrasion-resistant property is good, the service life is long, the price-performance ratio is high, the large-batch production is easy, the quality is stable and reliable, and the safety property is high.
Description
technical field:
The present invention relates to the transporting elbow structure of the industries such as a kind of building, mine, metallurgy, electric power, oil, coal, grain processing, particularly a kind of two points, large individual layer little double layer wear resistant and impact resistant bend pipe.
background technique:
The forming technique of bend pipe mainly contains casting, compression molding etc., and they are all rely on shaping die, is generated by cast or hot cold-press process profiling; No matter be any machinery equipment and pipeline, major part all uses bend pipe, mainly in order to carry various material; The material of bend pipe has the materials such as cast iron, stainless steel, alloyed steel, malleable cast iron, carbon steel, non-ferrous metal and plastics; In the industries such as building, mine, metallurgy, electric power, oil, coal, grain processing, the conveying of material is carried by pipeline pressure, and delivery pipe is subject to larger pressure and serious wearing and tearing; Therefore to delivery pipe, particularly bridge piece has higher combination property requirement, improves the working life of bend pipe, has now become the difficult problem being difficult to capture.
Bend pipe is the most widely used is at present individual layer Technique of High Magnesium Bend Pipe, also has the double-deck rich chromium cast iron bend pipe of a small amount of use.Individual layer Technique of High Magnesium Bend Pipe wear-resisting property is poor, and hardness is low, and Security is low; Double-layer wear-resistant bend pipe cost is high, and quality is better, and wear-resisting property is excellent, and hardness is high, and Security is high, but cost performance is not high.Develop a kind of excellent performance, cost is low, Security is good abrasion-proof bent tube is the work of whole industry in the urgent need to carrying out, under grasping the mechanism of pipe wear and different operating state, the type of flow of material, simulate the region that pipeline is the most easy to wear, and can to this region, improve wearing layer thickness or improve the wear-resisting property of this region material, to reach the overall object improving the bend pipe life-span, for client is cost-saving, for society economizes on resources.
summary of the invention:
The object of the invention is the shortcoming being to overcome prior art existence, wear-resisting, shock proof two points of a kind of low cost of manufacture, high life, large individual layer little double layer wear resistant and impact resistant bend pipe are provided.
The present invention adopts following structure and parts to realize its goal of the invention: a kind of two points, large individual layer little double layer wear resistant and impact resistant bend pipe, and it is made up of with the curved weld seam 4 of size two points of double-deck bend pipes, 1, two wear-resisting adpting flanges 2, seam flange 3; Two wear-resisting adpting flanges 2 are welded on two points of double-deck bend pipe 1 two ends by seam flange 3; The weld seam that the curved weld seam of size 4 produces when being two points of double-deck bend pipe 1 welding fabrications.
The present invention even can not damage by external force collision, impact distortion to protect the wearing layer of bend pipe internal layer in bend pipe transportation, installation and use process, and be subject to materials inside impact force and cause being out of shape the function even damaged, be provided with large curved abrasion-proof bent tube 5 little by curved 6 with bilayer; Double-deck little curved 6 are made up of with little curved interior abrasion-proof bent tube 8 little curved outer protection bend pipe 7, and it is inner that little curved interior abrasion-proof bent tube 8 is arranged on little curved outer protection bend pipe 7; Wherein large curved abrasion-proof bent tube 5 and little curved 6 cross sections of bilayer are the circular arc of any number of degrees, but the circle that cross section must form 360 degree combined by two semicanals.
The present invention, in order to increase the wear-resisting functions in large curved neutral position, is provided with large curved abrasion-proof bent tube 5; Wherein large curved abrasion-proof bent tube 5 is designed to from ends A thickening thickening to middle D with both sides C to middle B, ensure that the high wear resistance in large curved neutral position.
The present invention curvedly possesses wear-resisting functions to keep little, is provided with little curved interior abrasion-proof bent tube 8; And the outer conjunction surface 10 of little curved interior abrasion-proof bent tube is provided with in little curved interior abrasion-proof bent tube 8 outside; The outer conjunction surface 10 of little curved interior abrasion-proof bent tube is little curved interior abrasion-proof bent tube 8 periphery; Its medium and small curved interior abrasion-proof bent tube 8 is designed to uniform thickness and not uniform thickness, ensures littlely curvedly to possess corresponding wear resistance.
The function of connection is convenient in the present invention in order to realize bend pipe, be provided with wear-resisting adpting flange 2; It is made up of flange 11 and wear-resistant sleeve 12; It is inner that wear-resistant sleeve 12 is arranged on flange 11.
The present invention, in order to extend the working life of wear-resisting adpting flange 2 and ensure to be connected with other parts are smooth and easy, is provided with wear-resistant sleeve 12; And be provided with wear-resistant sleeve thereon and agree with inclined-plane 15; Wear-resistant sleeve agrees with inclined-plane 15 and is located on wear-resistant sleeve 12 cylindrical.
Owing to have employed the technical combinations scheme of above structure and parts, the present invention achieves its goal of the invention preferably, these two points, large individual layer little double layer wear resistant and impact resistant bend pipe is used for building, mine, metallurgical, electric power, oil, coal, the rugged environment of the industries such as grain processing, be designed to two points, the unique texture of the little bilayer of large individual layer, be divided into protective layer and wearing layer, protective layer protection wearing layer can not because bend pipe be in transport, install and collide by external force in using process, impact and distortion even damages, and be subject to materials inside impact force and cause distortion even to damage, large curved wearing layer pipe thickness uneven distribution (thickening thickening to middle D with both sides C to middle B from ends A), to wear and tear more serious position, wall thickness is the thickest, thus improve bend pipe working life curved greatly, realize the uniformity in whole bent wear position life-span, the wear-resisting adpting flange of design is convenient to the connection of bend pipe and other equipment, and the wear-resistant sleeve of wear-resisting adpting flange inside ensure that the wear resistance of mouth end, extends the working life of wear-resisting adpting flange and improve its sealing, the wearing layer that internal layer wearing layer can adopt the high-abrasive material such as rich chromium cast iron, medium chrome cast iron, low-chromium cast-iron, pottery, cemented carbide, Bearing Steel, alloyed steel, macromolecular material, wear resistance electrode built-up welding to be formed, can make the wear resistance of bend pipe improve more than several times, outer protective layer adopts the material such as low alloy steel or middle low carbon steel, such design at least can make bend pipe overall weight alleviate more than 10%, reaches and reduces costs, and saves material, the object economized on resources, long service life, price is low, and cost performance improves more than several times, also easily realize producing in enormous quantities, steady quality is reliable, and Safety performance is high.
accompanying drawing illustrates:
Accompanying drawing 1 is overall structure schematic diagram of the present invention.
Accompanying drawing 2 is overall structure generalized sections of the present invention.
Accompanying drawing 3 is structural representations that the present invention marks 1.
Accompanying drawing 4 is structural representations that the present invention marks 5.
Accompanying drawing 5 is cross section structure schematic diagram that the present invention marks 5.
Accompanying drawing 6 is vertical section structure schematic diagram that the present invention marks 5.
Accompanying drawing 7 is structural representations that the present invention marks 6.
Accompanying drawing 8 is cross-sectional view that the present invention marks 6.
Accompanying drawing 9 is structural representations that the present invention marks 7.
Accompanying drawing 10 is cross-sectional view that the present invention marks 7.
Accompanying drawing 11 is structural representations that the present invention marks 8.
Accompanying drawing 12 is cross-sectional view that the present invention marks 8.
Accompanying drawing 13 is structural representations that the present invention marks 2.
Accompanying drawing 14 is cross-sectional view that the present invention marks 2.
Accompanying drawing 15 is structural representations that the present invention marks 11.
Accompanying drawing 16 is cross-sectional view that the present invention marks 11.
Accompanying drawing 17 is structural representations that the present invention marks 12.
Accompanying drawing 18 is cross-sectional view that the present invention marks 12.
Description of reference numerals is shown in specification last page form.
embodiment:
Below in conjunction with accompanying drawing, summary of the invention is described further:
embodiment 1:
From summary of the invention: a kind of two points, large individual layer little double layer wear resistant and impact resistant bend pipe, it is made up of with the curved weld seam 4 of size two points of double-deck bend pipes, 1, two wear-resisting adpting flanges 2, seam flange 3; Two wear-resisting adpting flanges 2 are welded on two points of double-deck bend pipe 1 two ends by seam flange 3; The weld seam that the curved weld seam of size 4 produces when being two points of double-deck bend pipe 1 welding fabrications.
The present invention even can not damage by external force collision, impact distortion to protect the wearing layer of bend pipe internal layer in bend pipe transportation, installation and use process, and be subject to materials inside impact force and cause being out of shape the function even damaged, be provided with large curved abrasion-proof bent tube 5 little by curved 6 with bilayer; Double-deck little curved 6 are made up of with little curved interior abrasion-proof bent tube 8 little curved outer protection bend pipe 7, and it is inner that little curved interior abrasion-proof bent tube 8 is arranged on little curved outer protection bend pipe 7; Wherein large curved abrasion-proof bent tube 5 and little curved 6 cross sections of bilayer are the circular arc of any number of degrees, but the circle that cross section must form 360 degree combined by two semicanals.
The present invention, in order to increase the wear-resisting functions in large curved neutral position, is provided with large curved abrasion-proof bent tube 5; Wherein large curved abrasion-proof bent tube 5 is designed to from ends A thickening thickening to middle D with both sides C to middle B, ensure that the high wear resistance in large curved neutral position.
The present invention, in order to ensure little curved wear-resisting functions, is provided with little curved interior abrasion-proof bent tube 8; And the outer conjunction surface 10 of little curved interior abrasion-proof bent tube is provided with in little curved interior abrasion-proof bent tube 8 outside; The outer conjunction surface 10 of little curved interior abrasion-proof bent tube is little curved interior abrasion-proof bent tube 8 periphery; Its medium and small curved interior abrasion-proof bent tube 8 is designed to uniform thickness and not uniform thickness, ensures littlely curvedly also to possess corresponding wear resistance.
The function of connection is convenient in the present invention in order to realize bend pipe, be provided with wear-resisting adpting flange 2; It is made up of flange 11 and wear-resistant sleeve 12; It is inner that wear-resistant sleeve 12 is arranged on flange 11.
The present invention, in order to extend the working life of wear-resisting adpting flange 2 and ensure to be connected with other parts are smooth and easy, is provided with wear-resistant sleeve 12; And be provided with wear-resistant sleeve thereon and agree with inclined-plane 15; Wear-resistant sleeve agrees with inclined-plane 15 and is located on wear-resistant sleeve 12 cylindrical.
Two points of double-deck bend pipes 1 of the present invention refer to: by two-part and the two-layer bend pipe formed; It is made up of with bilayer little curved 6 large curved abrasion-proof bent tube 5; As shown in Figure 3, its design attitude is as marked shown in 1 in accompanying drawing 1,2 for its structure.
Wear-resisting adpting flange 2 of the present invention refers to: the adpting flange being arranged on two points of double-deck bend pipe 1 two ends; It is made up of flange 11 and wear-resistant sleeve 12; Its effect is convenient to the connection of bend pipe and ensures the wear resistance of mouth end; Its structure is as shown in accompanying drawing 13,14, and its design attitude is as marked shown in 2 in accompanying drawing 1,2.
Seam flange 3 of the present invention refers to: wear-resisting adpting flange 2 is welded on the weld seam that two points of double-deck bend pipes 1 produce; Its design attitude is as marked shown in 3 in accompanying drawing 1,2.
The curved weld seam of size of the present invention 4 refers to: double-deck little curved 6 are welded on the weld seam that large curved abrasion-proof bent tube 5 produces; Its design attitude is as marked shown in 4 in accompanying drawing 1,2.
Large curved abrasion-proof bent tube 5 of the present invention refers to: the constituent elements of two points of double-deck bend pipes 1; Its structure is as shown in accompanying drawing 4,5,6, and its design attitude is as marked shown in 5 in accompanying drawing 3.
Bilayer of the present invention little curved 6 refers to: the constituent elements of two points of double-deck bend pipes 1; It is made up of with little curved interior abrasion-proof bent tube 8 little curved outer protection bend pipe 7; Its structure is as shown in accompanying drawing 7,8, and its design attitude is as marked shown in 6 in accompanying drawing 3.
Little curved outer protection bend pipe 7 of the present invention refers to: the bend pipe be made up of the material such as low alloy steel or middle low carbon steel; Which is provided with conjunction surface 9 in little curved outer protection bend pipe; Its effect is that the wearing layer of protection bend pipe internal layer even can not damage by external force collision, impact and be out of shape in transportation, installation and use process because of bend pipe, and is subject to materials inside impact force and causes being out of shape and even damage; Its structure is as shown in accompanying drawing 9,10, and its design attitude is as marked shown in 7 in accompanying drawing 7,8.
Little curved interior abrasion-proof bent tube 8 of the present invention refers to: cast by rich chromium cast iron, low-chromium cast-iron, medium chrome cast iron, alloyed steel, Bearing Steel forge and press, pottery, sintering cemented carbide, the abrasion-proof bent tube that the high-abrasive materials such as synthesis of polymer material and wear resistance electrode built-up welding are made; Which is provided with the outer conjunction surface 10 of little curved interior abrasion-proof bent tube; Its effect is the wear resistance increasing large curved neutral position; Its structure is as shown in accompanying drawing 11,12, and its design attitude is as marked shown in 8 in accompanying drawing 7,8.
In little curved outer protection bend pipe of the present invention, conjunction surface 9 refers to: be located at the conjunction surface on little curved outer protection bend pipe 7; Its effect is the installation being convenient to little curved outer protection bend pipe 7 and little curved interior abrasion-proof bent tube 8; Its design attitude is as marked shown in 13 in accompanying drawing 9,10.
The outer conjunction surface 10 of little curved interior abrasion-proof bent tube of the present invention refers to: be located at the conjunction surface on little curved interior abrasion-proof bent tube 8; Its effect is the installation being convenient to little curved outer protection bend pipe 7 and little curved interior abrasion-proof bent tube 8; Its design attitude is as marked shown in 10 in accompanying drawing 11,12.
Flange 11 of the present invention refers to: the constituent elements of wear-resisting adpting flange 2; And be provided with flange thereon and agree with inclined-plane 13 and be connected draw-in groove 14; Its effect is the connection being convenient to bend pipe and other equipment; Its structure is as shown in accompanying drawing 15,16, and its design attitude is as marked shown in 11 in accompanying drawing 13,14.
Wear-resistant sleeve 12 of the present invention refers to: cast by rich chromium cast iron, low-chromium cast-iron, medium chrome cast iron, alloyed steel, Bearing Steel forge and press, pottery, sintering cemented carbide, the wear-resistant sleeve that the high-abrasive materials such as synthesis of polymer material and wear resistance electrode built-up welding are made; And be provided with wear-resistant sleeve thereon and agree with inclined-plane 15; Its effect is the working life and the raising sealing that extend wear-resisting adpting flange 2; Its structure is as shown in accompanying drawing 17,18, and its design attitude is as marked shown in 12 in accompanying drawing 13,14.
Flange of the present invention agrees with inclined-plane 13 and refers to: that is located at flange 11 inside agrees with inclined-plane; Its effect is the installation being convenient to flange 11 and wear-resistant sleeve 12; Its design attitude is as marked shown in 13 in accompanying drawing 15,16.
Connection draw-in groove 14 of the present invention refers to: be located at the draw-in groove on flange 11 cylindrical; Its effect is the installation being convenient to flange 11 and other equipment; Its design attitude is as marked shown in 14 in accompanying drawing 15,16.
Wear-resistant sleeve of the present invention agrees with inclined-plane 15 and refers to: be located at and wear-resistant sleeve 12 cylindrical agrees with inclined-plane; Its effect is the installation being convenient to flange 11 and wear-resistant sleeve 12; Its design attitude is as marked shown in 15 in accompanying drawing 17,18.
| Reference numerals | Mark title | Reference numerals | Mark title |
| 1 | Two points of double-deck bend pipes 1 | 9 | Conjunction surface 9 in little curved outer protection bend pipe |
| 2 | Wear-resisting adpting flange 2 | 10 | The outer conjunction surface 10 of little curved interior abrasion-proof bent tube |
| 3 | Seam flange 3 | 11 | Flange 11 |
| 4 | The curved weld seam 4 of size | 12 | Wear-resistant sleeve 12 |
| 5 | Large curved abrasion-proof bent tube 5 | 13 | Flange agrees with inclined-plane 13 |
| 6 | Double-deck little by curved 6 | 14 | Connect draw-in groove 14 |
| 7 | Little curved outer protection bend pipe 7 | 15 | Wear-resistant sleeve agrees with inclined-plane 15 |
| 8 | Little curved interior abrasion-proof bent tube 8 |
Claims (4)
1. two points, a large individual layer little double layer wear resistant and impact resistant bend pipe, is characterized in that it is made up of two points of double-deck bend pipes, two curved weld seams of wear-resisting adpting flange, seam flange and size; Two wear-resisting adpting flanges are welded on two points of double-deck bend pipe two ends by seam flange; The curved weld seam of size be two points of double-deck elbow pipe weldings shaping time produce weld seam.
2. a kind of two points according to claim 1, large individual layer little double layer wear resistant and impact resistant bend pipe, it is characterized in that being provided with large curved abrasion-proof bent tube and bilayer little curved; Double-deck to be littlely curvedly made up of little curved outer protection bend pipe and little curved interior abrasion-proof bent tube, little curved interior abrasion-proof bent tube is arranged on little curved outer protection bend pipe inside; Wherein large curved abrasion-proof bent tube and the little curved cross section of bilayer are the circular arc of any number of degrees, but the circle that cross section must form 360 degree combined by two semicanals.
3. a kind of two points according to claim 1, large individual layer little double layer wear resistant and impact resistant bend pipe, is characterized in that being provided with large curved abrasion-proof bent tube; Wherein large curved abrasion-proof bent tube is designed to from ends A thickening thickening to middle D with both sides C to middle B.
4. a kind of two points according to claim 1, large individual layer little double layer wear resistant and impact resistant bend pipe, is characterized in that being provided with wear-resistant sleeve; And be provided with wear-resistant sleeve thereon and agree with inclined-plane; Wear-resistant sleeve agrees with inclined-plane and is located on wear-resistant sleeve cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510108121.2A CN104676178A (en) | 2015-03-12 | 2015-03-12 | Bisecting large single-layer and small double-layer type abrasion-resistant and impact-resistant elbow pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510108121.2A CN104676178A (en) | 2015-03-12 | 2015-03-12 | Bisecting large single-layer and small double-layer type abrasion-resistant and impact-resistant elbow pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104676178A true CN104676178A (en) | 2015-06-03 |
Family
ID=53311594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510108121.2A Pending CN104676178A (en) | 2015-03-12 | 2015-03-12 | Bisecting large single-layer and small double-layer type abrasion-resistant and impact-resistant elbow pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104676178A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061394A (en) * | 2013-03-19 | 2014-09-24 | 西法股份公司 | Method To Make Curved Tubular Element And Curved Tubular Element Thus Obtained |
-
2015
- 2015-03-12 CN CN201510108121.2A patent/CN104676178A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061394A (en) * | 2013-03-19 | 2014-09-24 | 西法股份公司 | Method To Make Curved Tubular Element And Curved Tubular Element Thus Obtained |
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Application publication date: 20150603 |