CN103599958A - Abrasion-resistant pipe as well as manufacturing method thereof - Google Patents
Abrasion-resistant pipe as well as manufacturing method thereof Download PDFInfo
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- CN103599958A CN103599958A CN201310586498.XA CN201310586498A CN103599958A CN 103599958 A CN103599958 A CN 103599958A CN 201310586498 A CN201310586498 A CN 201310586498A CN 103599958 A CN103599958 A CN 103599958A
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- welding
- resistant pipe
- pipe
- abrasion
- nitriding
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Abstract
The invention discloses a manufacturing method of an abrasion-resistant pipe. The manufacturing method of the abrasion-resistant pipe comprises the following steps: surfacing on the inner wall of an adopted common iron pipe; surfacing by adopting 38 chrome molybdenum aluminum nitride steel powder or 38 chrome molybdenum aluminum nitride steel welding wires through adopting dioxide shielded welding or argon arc welding; carrying out arc welding at the temperature of 2000 DEG C; carrying out inner wall boring and grinding machining after arc welding; then carrying out nitriding treatment again after inner wall boring and grinding machining; filling an ammonia gas in the nitriding furnace, and nitriding at the nitriding temperature of 580 DEG C for 7 hours so as to manufacture the abrasion resistant pipe. The abrasion resistant pipe manufactured by the manufacturing method of the abrasion-resistant pipe after surfacing is easy to mechanical processing for boring the inner wall, can reach the V hardness of 900-1100 through nitriding treatment, and can reach the Rockwell hardness of 70-750, has the abrasion resistant intensity higher than that of a Ge plated pipe, and has long service after being used for a concrete pouring vehicle.
Description
Technical field
The invention belongs to tubing, particularly a kind of wear-resistant pipe and preparation method thereof.
Background technology
General of building industry is used filling concrete car at present, on filling concrete car, there is concrete pump, have concrete conveying pipe, when concrete is carried at pipeline, because concrete coefficient of friction is very large, concrete transporting is that inner-walls of duct is had to very serious friction, causes conveyance conduit heavy wear, and solution is to use plating Le pipe at present, but rub proofness or the very poor Du Chrome layer of plating Le pipe easily come off, and lower hardness when temperature is high, causes very short time will change conveyance conduit.Du Chrome technique can produce a large amount of waste water and cause environmental pollution in addition.Current build-up wear-resistant pipe, piles postwelding and is difficult for carrying out the processing of turning abrasive machine again in addition.
Summary of the invention
Technical problem to be solved by this invention is: a kind of wear-resistant pipe is provided.Its rub proofness is better than plating Le pipe far away.
Technical scheme of the present invention is:
A wear-resistant pipe preparation method, is characterized in that: adopt common iron pipe, at iron pipe inwall, carry out built-up welding; adopt 38 chrome molybdenum aluminium nitrated steel iron powders or 38 chrome molybdenum aluminium nitrogenize iron and steel welding wire built-up weldings; built-up welding adopts dioxy protection weldering or argon arc welding, and 2000 ℃ of welding arc temperature are carried out inwall boring, grinding machine processing again after welding arc; inwall boring; after grinding machine processing, then carry out nitrogen treatment, in nitriding furnace, fill ammonia nitrogenize; 580 ℃ of nitriding temperatures, nitrogen treatment 7 hours.
The wear-resistant pipe of making according to above-mentioned wear-resistant pipe preparation method.
Effect of the present invention is:
Adopt the wear-resistant pipe heap postwelding that this wear-resistant pipe preparation method is made to be easy to the boring mill that machining is carried out inwall, then via nitride processing can reach 900 ° of VShi hardness---1100 °, 65 ° of Rockwell hardness---75 °.Scuff resistance, higher than plating Le pipe, is used long in the filling concrete car life-span.For ease of maintenaince, can repeated overlaying weldability, turning grinding.And corrosion-resistant, can resist sea water intrusion and corrosion.
The specific embodiment
A wear-resistant pipe preparation method, adopts common iron pipe, at iron pipe inwall, carries out built-up welding; adopt 38 chrome molybdenum aluminium nitrated steel iron powders or 38 chrome molybdenum aluminium nitrogenize iron and steel welding wire built-up weldings, built-up welding adopts dioxy protection weldering or argon arc welding, 2000 ℃ of welding arc temperature; 20 ° of postwelding built-up welding place hardness Rockwell hardness---30 °, so easily processing after welding arc, then carry out inwall boring, grinding machine processing; inwall boring; after grinding machine processing, then carry out nitrogen treatment, in nitriding furnace, fill ammonia nitrogenize; 580 ℃ of nitriding temperatures, nitrogen treatment 7 hours.After nitrogenize, hardness is brought up to 65 ° of Rockwell hardness---and 75 °.
Claims (2)
1. a wear-resistant pipe preparation method, is characterized in that: adopt common iron pipe, at iron pipe inwall, carry out built-up welding; adopt 38 chrome molybdenum aluminium nitrated steel iron powders or 38 chrome molybdenum aluminium nitrogenize iron and steel welding wire built-up weldings; built-up welding adopts dioxy protection weldering or argon arc welding, and 2000 ℃ of welding arc temperature are carried out inwall boring, grinding machine processing again after welding arc; inwall boring; after grinding machine processing, then carry out nitrogen treatment, in nitriding furnace, fill ammonia nitrogenize; 580 ℃ of nitriding temperatures, nitrogen treatment 7 hours.
2. the wear-resistant pipe of making according to the wear-resistant pipe preparation method of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310586498.XA CN103599958A (en) | 2013-11-19 | 2013-11-19 | Abrasion-resistant pipe as well as manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310586498.XA CN103599958A (en) | 2013-11-19 | 2013-11-19 | Abrasion-resistant pipe as well as manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103599958A true CN103599958A (en) | 2014-02-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310586498.XA Pending CN103599958A (en) | 2013-11-19 | 2013-11-19 | Abrasion-resistant pipe as well as manufacturing method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN103599958A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6064785A (en) * | 1983-09-20 | 1985-04-13 | Kuroki Kogyosho:Kk | Pipe having corrosion- and wear-resistant inside wall layer and its production |
| US6520213B1 (en) * | 2001-09-04 | 2003-02-18 | Esser-Werke Kg | Arcuate double-layer pipe, and method of assembling an arcuate double-layer pipe |
| CN201925669U (en) * | 2010-11-25 | 2011-08-10 | 济南杰瑞复盛机电设备有限公司 | High-wear-resistant composite delivery pipeline |
| CN201991449U (en) * | 2011-02-25 | 2011-09-28 | 梅河口市弘业无缝钢管有限公司 | Special oil well pipe with changed material and structural layer at two ends |
| 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 |
| CN203215114U (en) * | 2013-04-16 | 2013-09-25 | 上海月月潮钢管制造有限公司 | Acid-and-alkali-resistant and abrasion-resistant rubbish conveying steel pipe |
-
2013
- 2013-11-19 CN CN201310586498.XA patent/CN103599958A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6064785A (en) * | 1983-09-20 | 1985-04-13 | Kuroki Kogyosho:Kk | Pipe having corrosion- and wear-resistant inside wall layer and its production |
| US6520213B1 (en) * | 2001-09-04 | 2003-02-18 | Esser-Werke Kg | Arcuate double-layer pipe, and method of assembling an arcuate double-layer pipe |
| CN201925669U (en) * | 2010-11-25 | 2011-08-10 | 济南杰瑞复盛机电设备有限公司 | High-wear-resistant composite delivery pipeline |
| CN201991449U (en) * | 2011-02-25 | 2011-09-28 | 梅河口市弘业无缝钢管有限公司 | Special oil well pipe with changed material and structural layer at two ends |
| 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 |
| CN203215114U (en) * | 2013-04-16 | 2013-09-25 | 上海月月潮钢管制造有限公司 | Acid-and-alkali-resistant and abrasion-resistant rubbish conveying steel pipe |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140226 |