CN104498695A - Thermal treatment process of 1Cr5Mo alloy seamless steel tube - Google Patents
Thermal treatment process of 1Cr5Mo alloy seamless steel tube Download PDFInfo
- Publication number
- CN104498695A CN104498695A CN201410737046.1A CN201410737046A CN104498695A CN 104498695 A CN104498695 A CN 104498695A CN 201410737046 A CN201410737046 A CN 201410737046A CN 104498695 A CN104498695 A CN 104498695A
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- CN
- China
- Prior art keywords
- 1cr5mo
- seamless steel
- alloy seamless
- tempering
- steel tube
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- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/28—Normalising
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a thermal treatment process of a 1Cr5Mo alloy seamless steel tube. The process comprises the following steps: manufacturing a seamless steel tube from a 1Cr5Mo alloy seamless steel billet by means of external refining, continuously casting round billet, heating, perforating, continuously rolling, re-heating, sizing and reducing, straightening and other processes; hardening and tempering, namely normalizing at 920-960 DEG C and heating for 60-90 minutes; and tempering at 720-780 DEG C for 60-90 minutes. According to the thermal treatment process of the 1Cr5Mo alloy seamless steel tube, the 1Cr5Mo alloy seamless steel tube has excellent mechanical performance and corrosion resistance, and each index of the 1Cr5Mo alloy seamless steel tube has a relatively large margin.
Description
Technical field
The invention belongs to technique of pipe field, relate to a kind of thermal treatment process of 1Cr5Mo alloy seamless steel pipe.
Background technology
Along with newly-built or enlarging oil refining engineering constantly start, the market space of the corrosion-resistant cracking tube used in oil refining device is constantly increased, causes the output of domestic high-performance petroleum cracking tube far can not meet the demand in market.And then Chinese Crude Oils has the shortcomings such as the high and viscosity of concentration containing cured and sulphur etc. is large, makes the working conditions of refinery device harsher, to the compressive strength of pipeline and the requirement of erosion resistance higher.For this reason, for the characteristic of domestic oil and the service requirements of user, develop the 1Cr5Mo alloy seamless steel pipe with better mechanical property and erosion resistance, the yield strength of this steel pipe, ultimate tensile, elongation, the various performance index such as ballistic work and erosion resistance are all above standard to the requirement of oil refining device tubing, meet the service requirements of user.
As everyone knows, in order to improve alloy seamless steel pipe mechanical property, except improving the character of material itself, heat-treating it is also a kind of very necessary means.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of thermal treatment process of 1Cr5Mo alloy seamless steel pipe.
For achieving the above object, the invention provides following technical scheme:
A thermal treatment process for 1Cr5Mo alloy seamless steel pipe, comprises the steps:
By 1Cr5Mo alloy seamless steel idiosome through external refining, continuous cast round billets, heating, perforation, tandem rolling, reheat, determine the operation such as tube reducing, aligning manufacture weldless steel tube after, carry out modifier treatment again, condition is: first normalizing heating, normalizing temperature 920 ~ 960 DEG C, heat-up time 60 ~ 90min; Carry out tempering again, tempering temperature 720 ~ 780 DEG C, tempering time 60 ~ 90min.
Preferably, during modifier treatment, normalizing heating temperature 940 ~ 960 DEG C, heat-up time 70min.
Preferably, during modifier treatment, tempering temperature 740 ~ 780 DEG C, tempering time 70min.
The thermal treatment process of 1Cr5Mo alloy seamless steel pipe of the present invention, 1Cr5Mo alloy seamless steel pipe can be made to have excellent mechanical property and erosion resistance, and indices has larger nargin.
Embodiment
Be described in detail to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
Embodiment 1
By 1Cr5Mo alloy seamless steel idiosome through external refining, continuous cast round billets, heating, perforation, tandem rolling, reheat, determine the operation such as tube reducing, aligning manufacture weldless steel tube after, carry out modifier treatment again, condition is: first normalizing heating, normalizing temperature 920 DEG C, heat-up time 90min; Carry out tempering again, tempering temperature 720 DEG C, tempering time 90min.
Embodiment 2
By 1Cr5Mo alloy seamless steel idiosome through external refining, continuous cast round billets, heating, perforation, tandem rolling, reheat, determine the operation such as tube reducing, aligning manufacture weldless steel tube after, carry out modifier treatment again, condition is: first normalizing heating, normalizing temperature 960 DEG C, heat-up time 60min; Carry out tempering again, tempering temperature 780 DEG C, tempering time 60min.
Embodiment 3
By 1Cr5Mo alloy seamless steel idiosome through external refining, continuous cast round billets, heating, perforation, tandem rolling, reheat, determine the operation such as tube reducing, aligning manufacture weldless steel tube after, carry out modifier treatment again, condition is: first normalizing heating, normalizing temperature 940 DEG C, heat-up time 70min; Carry out tempering again, tempering temperature 740 DEG C, tempering time 70min.
In those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.
In addition, be to be understood that, although this specification sheets is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of specification sheets is only for clarity sake, those skilled in the art should by specification sheets integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (3)
1. a thermal treatment process for 1Cr5Mo alloy seamless steel pipe, is characterized in that, comprises the steps:
By 1Cr5Mo alloy seamless steel idiosome through external refining, continuous cast round billets, heating, perforation, tandem rolling, reheat, determine the operation such as tube reducing, aligning manufacture weldless steel tube after, carry out modifier treatment again, condition is: first normalizing heating, normalizing temperature 920 ~ 960 DEG C, heat-up time 60 ~ 90min; Carry out tempering again, tempering temperature 720 ~ 780 DEG C, tempering time 60 ~ 90min.
2. the thermal treatment process of 1Cr5Mo alloy seamless steel pipe according to claim 1, is characterized in that: during modifier treatment, normalizing heating temperature 940 ~ 960 DEG C, heat-up time 70min.
3. the thermal treatment process of 1Cr5Mo alloy seamless steel pipe according to claim 1, is characterized in that: during modifier treatment, tempering temperature 740 ~ 780 DEG C, tempering time 70min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410737046.1A CN104498695A (en) | 2014-12-06 | 2014-12-06 | Thermal treatment process of 1Cr5Mo alloy seamless steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410737046.1A CN104498695A (en) | 2014-12-06 | 2014-12-06 | Thermal treatment process of 1Cr5Mo alloy seamless steel tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104498695A true CN104498695A (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410737046.1A Pending CN104498695A (en) | 2014-12-06 | 2014-12-06 | Thermal treatment process of 1Cr5Mo alloy seamless steel tube |
Country Status (1)
| Country | Link |
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| CN (1) | CN104498695A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL196693B1 (en) * | 2001-04-04 | 2008-01-31 | V & M France | Steel and steel tube for high-temperature use |
| CN102690995A (en) * | 2012-06-01 | 2012-09-26 | 内蒙古包钢钢联股份有限公司 | High-temperature resistant seamless steel pipe and production method thereof |
| CN103060695A (en) * | 2013-01-14 | 2013-04-24 | 攀钢集团成都钢钒有限公司 | Production method of alloy seamless steel tubes for petroleum refining |
| CN103215494A (en) * | 2013-04-10 | 2013-07-24 | 内蒙古包钢钢联股份有限公司 | Re-containing seamless Cr-Mo-V type alloy steel pipe and production method thereof |
| CN103290196A (en) * | 2013-06-17 | 2013-09-11 | 攀钢集团成都钢钒有限公司 | Method for cooling steel tubes after normalizing |
-
2014
- 2014-12-06 CN CN201410737046.1A patent/CN104498695A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL196693B1 (en) * | 2001-04-04 | 2008-01-31 | V & M France | Steel and steel tube for high-temperature use |
| CN102690995A (en) * | 2012-06-01 | 2012-09-26 | 内蒙古包钢钢联股份有限公司 | High-temperature resistant seamless steel pipe and production method thereof |
| CN103060695A (en) * | 2013-01-14 | 2013-04-24 | 攀钢集团成都钢钒有限公司 | Production method of alloy seamless steel tubes for petroleum refining |
| CN103215494A (en) * | 2013-04-10 | 2013-07-24 | 内蒙古包钢钢联股份有限公司 | Re-containing seamless Cr-Mo-V type alloy steel pipe and production method thereof |
| CN103290196A (en) * | 2013-06-17 | 2013-09-11 | 攀钢集团成都钢钒有限公司 | Method for cooling steel tubes after normalizing |
Non-Patent Citations (1)
| Title |
|---|
| 李连进等: "1Cr5Mo合金无缝钢管的热处理工艺研究", 《石油机械》 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into 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: 20150408 |