CN103196006A - High-wear-resistance delivery pipe and manufacturing method thereof - Google Patents
High-wear-resistance delivery pipe and manufacturing method thereof Download PDFInfo
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- CN103196006A CN103196006A CN 201310136162 CN201310136162A CN103196006A CN 103196006 A CN103196006 A CN 103196006A CN 201310136162 CN201310136162 CN 201310136162 CN 201310136162 A CN201310136162 A CN 201310136162A CN 103196006 A CN103196006 A CN 103196006A
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Abstract
The invention relates to a high-wear-resistance delivery pipe and a manufacturing method thereof. The delivery pipe comprises a pipe body and a wear resistant layer arranged on the inner wall of the pipe body. The wear resistant layer is 2-3mm in thickness and is made of wear resistant material and binder in the weight ratio of 2:1. The manufacturing method includes the steps of mixing the wear resistant material and the binder according to the weight ratio to obtain paste; coating the inner wall of the pipe body with the paste, and performing laser sintering to obtain the wear resistant layer on the inner wall of the pipe body; inspecting the wear resistant layer and treating the surface to obtain the high-wear-resistance delivery pipe. Compared with the prior art, the wear resistant layer is 1400-1500HV in hardness and 50Mpa in pressure resistance, so that the wear resistance of the inner wall of the delivery pipe for industrial equipment and engineering machinery is substantially achieved and the service life of the delivery pipe for the industrial equipment and the engineering machinery is prolonged. The high-wear-resistance delivery pipe is widely applicable.
Description
Technical field
The present invention relates to a kind of industrial machinery with delivery pipe and manufacture method thereof, especially relate to a kind of high-wear resistance delivery pipe and manufacture method thereof.
Background technique
The wearing and tearing of the wear-resisting pipe of industry are to influence the factor that security civilization is produced always, and along with development in science and technology, material is also constantly brought forth new ideas, and occurs materials such as cast stone, cast steel, alloy, stickup pottery in succession.Wherein the pipe lining aluminium oxide ceramics is with its high wear resistance, high hardness, resistance to oxidation, good corrosion resistance and high high-low temperature resistant strength character, become a kind of most widely used general high-abrasive material, occupied about 80% of world's special cermacis market share (high-abrasive material).
The corundum layer Vickers hardness is equivalent to tungsten cobalt gold firmly up to 1100-1500 (Rockwell hardness is 90-98).Wear resistance is higher more than 20 times than carbon steel tube, it than the common bonding corundum grinding wheel superior performance that forms many.At present, high-wear resistance delivery pipe and thermal power plant of present tens of family use ceramic-lined composite steel tube to contrast by the digitalized artificial technology: the anti-abrasive resistance height of high-wear resistance delivery pipe, especially anti-solid fluid scouring capability is very strong.
Summary of the invention
Purpose of the present invention is exactly to provide high-wear resistance delivery pipe and the manufacture method thereof that a kind of hardness is big, compressive strength is high for the defective that overcomes above-mentioned prior art existence.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of high-wear resistance delivery pipe, the wearing layer that this delivery pipe comprises body and is located at inboard wall of tube body, the thickness of described wearing layer are 2～3mm; Described wearing layer is made by high-abrasive material and tackiness agent, and the mass ratio of described high-abrasive material and tackiness agent is 2: 1.
Described high-abrasive material is selected from two kinds in aluminium oxide, corundum or the pottery.
The granularity of described aluminium oxide, corundum or pottery is 20～100 μ m.
Described high-abrasive material preferred mass ratio is 1: 1.7～1: 1.8 aluminium oxide and the mixture of corundum.
Described tackiness agent is selected from a kind of in isocyanates or the bismaleimides.
A kind of manufacture method of high-wear resistance delivery pipe, this method may further comprise the steps:
(1) by weight high-abrasive material is mixed the furnishing paste with tackiness agent;
(2) paste is coated in the inwall of body, and adopts laser sinteredly, obtain being located at the wearing layer of inboard wall of tube body;
(3) wearing layer is tested and surface treatment, namely obtain the high-wear resistance delivery pipe.
Described laser sintered temperature is 300～500 ℃.According to the difference of tackiness agent, adopt different laser sintered temperature.
Compared with prior art, the present invention has the following advantages and beneficial effect:
The first, the present invention adopts aluminium oxide, corundum or pottery with high hardness as high-abrasive material, mix with Bond again, adopt the hardness number of the wearing layer of the high-wear resistance delivery pipe that laser sintered method makes to reach 1400～1500HV, the withstand voltage 50Mpa that reaches, fundamentally solved the wear-resisting property of the delivery pipe inwall of using on industry equipment and the engineering machinery, improved the working life of industry equipment and engineering machinery delivery pipe, fill up the blank of domestic and international market, satisfied the demand in market.
The second, the high-wear resistance delivery pipe that makes of the present invention is with a wide range of applications.
Except being applied to coal-burning power plant's ash disposal, deslagging, powder feeding, returning the powder, also be widely used in: the conveying of water coal slurry, coal washing mud, filling in mine material, pit coal powder in (1) coal industry, and the pipeline of concentrate and tailings is carried; The pipeline of (2) pipeline such as the pulverized coal injection of the ironmaking of Iron And Steel Plant, defeated slag, and the conveying ferro-alloy of steel-making, external refining etc.; (3) raw slurry of rotary kiln wet production line conveying, coal dust conveying, the blanking of lift, concrete conveying pipe.
Three, manufacturing process of the present invention is simple, and cost is lower, is beneficial to popularization.
Description of drawings
Fig. 1 is the main TV structure schematic representation of high-wear resistance delivery pipe;
Fig. 2 is the A-A face sectional structure schematic representation of Fig. 1;
Fig. 3 is the manufacturing process flow diagram of high-wear resistance delivery pipe.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
A kind of high-wear resistance delivery pipe, as shown in Figure 1 and Figure 2, the wearing layer 2 that this delivery pipe comprises body 1 and is located at body 1 inwall, the thickness of wearing layer 2 are 2.5mm; Wearing layer 2 is made by high-abrasive material and tackiness agent, and the mass ratio of high-abrasive material and tackiness agent is 2: 1.Wherein, to be selected from mass ratio be 1: 1.78 aluminium oxide and the mixture of corundum to high-abrasive material.The granularity of aluminium oxide and corundum is all between 20～100 μ m.Tackiness agent is isocyanates.
A kind of manufacture method of high-wear resistance delivery pipe, as shown in Figure 3, this method may further comprise the steps:
(1) tubing is carried out machining;
(2) by weight high-abrasive material is mixed the furnishing paste with tackiness agent;
(3) paste is coated in the inwall of body, and to adopt laser sintered, laser sintered temperature be 400 ℃, obtain being located at the wearing layer of inboard wall of tube body;
(4) wearing layer is tested and surface treatment, namely obtain the high-wear resistance delivery pipe.
To the high-wear resistance delivery pipe of present embodiment manufacturing and common 45# tubing is out of shape and the stress distribution test, digital simulation by with common 45# tubing contrast, wearing layer is in light weight, the compressive strength height.Under the pressure effect of 50MPa, the maximum stress of wearing layer is 606MPa, and than the maximum stress 464MPa height of steel, but wearing layer has weakened the stress level of peripheral body, from 378MPa, is reduced to 329MPa.The amount of deformation of whole body external diameter is reduced to 0.118mm from 0.135mm simultaneously.By many-body dynamics emulation, be combined in laboratory test research contrast, the wear-resisting property of wearing layer is more than 25 times of common material 45# tubing.
A kind of high-wear resistance delivery pipe, as shown in Figure 1 and Figure 2, the wearing layer 2 that this delivery pipe comprises body 1 and is located at body 1 inwall, the thickness of wearing layer 2 are 2mm; Wearing layer 2 is made by high-abrasive material and tackiness agent, and the mass ratio of high-abrasive material and tackiness agent is 2: 1.Wherein, high-abrasive material be selected from mass ratio be 1: 1.7 aluminium oxide with the pottery mixture.Wherein the granularity of aluminium oxide and pottery is all between 20～100 μ m.Tackiness agent is bismaleimides.
A kind of manufacture method of high-wear resistance delivery pipe, as shown in Figure 3, this method may further comprise the steps:
(1) tubing is carried out machining;
(2) by weight high-abrasive material is mixed the furnishing paste with tackiness agent;
(3) paste is coated in the inwall of body, and to adopt laser sintered, laser sintered temperature be 300 ℃, obtain being located at the wearing layer of inboard wall of tube body;
(4) wearing layer is tested and surface treatment, namely obtain the high-wear resistance delivery pipe.
Embodiment 3
A kind of high-wear resistance delivery pipe, as shown in Figure 1 and Figure 2, the wearing layer 2 that this delivery pipe comprises body 1 and is located at body 1 inwall, the thickness of wearing layer 2 are 3mm; Wearing layer 2 is made by high-abrasive material and tackiness agent, and the mass ratio of high-abrasive material and tackiness agent is 2: 1.Wherein, it is 1: 1.8 corundum and the mixture of pottery that high-abrasive material is selected mass ratio for use, and the granularity of corundum and pottery is all between 20～100 μ m.Tackiness agent is bismaleimides.
A kind of manufacture method of high-wear resistance delivery pipe, as shown in Figure 3, this method may further comprise the steps:
(1) tubing is carried out machining;
(2) by weight high-abrasive material is mixed the furnishing paste with tackiness agent;
(3) paste is coated in the inwall of body, and to adopt laser sintered, laser sintered temperature be 500 ℃, obtain being located at the wearing layer of inboard wall of tube body;
(4) wearing layer is tested and surface treatment, namely obtain the high-wear resistance delivery pipe.
Claims (7)
1. a high-wear resistance delivery pipe is characterized in that, the wearing layer that this delivery pipe comprises body and is located at inboard wall of tube body, the thickness of described wearing layer are 2～3mm; Described wearing layer is made by high-abrasive material and tackiness agent, and the mass ratio of described high-abrasive material and tackiness agent is 2: 1.
2. a kind of high-wear resistance delivery pipe according to claim 1 is characterized in that, described high-abrasive material is selected from two kinds in aluminium oxide, corundum or the pottery.
3. a kind of high-wear resistance delivery pipe according to claim 2 is characterized in that, the granularity of described aluminium oxide, corundum or pottery is 20～100 μ m.
4. a kind of high-wear resistance delivery pipe according to claim 2 is characterized in that, described high-abrasive material preferred mass ratio is 1: 1.7～1: 1.8 aluminium oxide and the mixture of corundum.
5. a kind of high-wear resistance delivery pipe according to claim 1 is characterized in that, described tackiness agent is selected from a kind of in isocyanates or the bismaleimides.
6. the manufacture method as the arbitrary described high-wear resistance delivery pipe of claim 1～5 is characterized in that, this method may further comprise the steps:
(1) by weight high-abrasive material is mixed the furnishing paste with tackiness agent;
(2) paste is coated in the inwall of body, and adopts laser sinteredly, obtain being located at the wearing layer of inboard wall of tube body;
(3) wearing layer is tested and surface treatment, namely obtain the high-wear resistance delivery pipe.
7. the manufacture method of a kind of high-wear resistance delivery pipe according to claim 6 is characterized in that, described laser sintered temperature is 300～500 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310136162 CN103196006A (en) | 2013-04-18 | 2013-04-18 | High-wear-resistance delivery pipe and manufacturing method thereof |
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| CN 201310136162 CN103196006A (en) | 2013-04-18 | 2013-04-18 | High-wear-resistance delivery pipe and manufacturing method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130075515A1 (en) * | 2011-09-26 | 2013-03-28 | Siemens Industry, Inc. | Rolling mill coil-forming laying head with path or pipe components formed by laser sintering process |
| CN103486404A (en) * | 2013-08-21 | 2014-01-01 | 苏州康华净化***工程有限公司 | Flame retardant composite vent pipe material used in cleaning shop |
| CN105927809A (en) * | 2016-05-20 | 2016-09-07 | 北京北科环境工程有限公司 | Bimetal wear resisting bent pipe |
| WO2019217781A1 (en) * | 2018-05-11 | 2019-11-14 | Magna International Inc. | Method for improving high-pressure die casting shot sleeve by additive manufacturing metal matrix composite insert |
-
2013
- 2013-04-18 CN CN 201310136162 patent/CN103196006A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130075515A1 (en) * | 2011-09-26 | 2013-03-28 | Siemens Industry, Inc. | Rolling mill coil-forming laying head with path or pipe components formed by laser sintering process |
| CN103486404A (en) * | 2013-08-21 | 2014-01-01 | 苏州康华净化***工程有限公司 | Flame retardant composite vent pipe material used in cleaning shop |
| CN103486404B (en) * | 2013-08-21 | 2015-04-29 | 苏州康华净化***工程有限公司 | Flame retardant composite vent pipe material used in cleaning shop |
| CN105927809A (en) * | 2016-05-20 | 2016-09-07 | 北京北科环境工程有限公司 | Bimetal wear resisting bent pipe |
| WO2019217781A1 (en) * | 2018-05-11 | 2019-11-14 | Magna International Inc. | Method for improving high-pressure die casting shot sleeve by additive manufacturing metal matrix composite insert |
| CN112105470A (en) * | 2018-05-11 | 2020-12-18 | 麦格纳国际公司 | Method for improving high pressure die casting cartridge by additive manufacturing of metal matrix composite inserts |
| US11969783B2 (en) | 2018-05-11 | 2024-04-30 | Magna International Inc. | Method for improving high-pressure die casting shot sleeve by additive manufacturing metal matrix composite insert |
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Application publication date: 20130710 |