CN100496800C - Method for manufacturing blade forged piece of heavy type combustion engine - Google Patents
Method for manufacturing blade forged piece of heavy type combustion engine Download PDFInfo
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- CN100496800C CN100496800C CNB2006100463850A CN200610046385A CN100496800C CN 100496800 C CN100496800 C CN 100496800C CN B2006100463850 A CNB2006100463850 A CN B2006100463850A CN 200610046385 A CN200610046385 A CN 200610046385A CN 100496800 C CN100496800 C CN 100496800C
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Abstract
The forging for heavy combustion vane uses ze pi 479 steel, with technical conditions being C 0.12%-0.18%, Cr 15%-16.5%, Ni 2.0%-2.5%, Mo 0.9%-1.3%, N 0.03%-0.10%. The final forging temperature is conThe forging for heavy combustion vane uses ze pi 479 steel, with technical conditions being C 0.12%-0.18%, Cr 15%-16.5%, Ni 2.0%-2.5%, Mo 0.9%-1.3%, N 0.03%-0.10%. The final forging temperature is controlled within 1040deg.C-1160deg.C, with deformation ratio bigger than 25%. It determines the deformation temperature and heat treatment system to meet the production requirement for heavy combustion trolled within 1040deg.C-1160deg.C, with deformation ratio bigger than 25%. It determines the deformation temperature and heat treatment system to meet the production requirement for heavy combustion steel vanes. steel vanes.
Description
Technical field:
The present invention relates to a kind of manufacture method of blade forging of heavy type combustion engine.
Background technology:
R0110 heavy combustion engine blade adopts Russian material Э ∏ 479 steel, and domestic respective material is 1Cr16Ni2MoN, is a kind of new material, does not domesticly carry out this work, and not having can be for the technological parameter of using for reference, as the influence of deformation technique to structure property; Heat treatment is to the influence of structure property; Forge Heating temperature, fire are time to the leaf tissue Effect on Performance etc.The present inventor is according to the Russian side correlation technique file Ty14-1-948-74 15 X 16H2A M-Щ (Э ∏ 479-ш) (coming from " Russian aeronautical material standard collection of translations "), it is 550 ℃～590 ℃ that quenching, tempering process have been adopted in raw-material heat treatment, in order to reach the performance requirement of technical conditions, N content is controlled at the middle upper limit, and for follow-up forging heat treatment, then adopted the system of high tempering, promptly 640 ℃～680 ℃, but the forging performance index after handling does not but reach the requirement of forging technical conditions.
Summary of the invention:
The object of the present invention is to provide a kind of manufacture method of blade forging of heavy type combustion engine,, satisfy the production of heavy combustion engine steel blade by determining deformation temperature and heat treating regime.
The present invention specifically provides a kind of manufacture method of blade forging of heavy type combustion engine, material therefor is the 1Cr16Ni2MoN steel, it is C 0.12%～0.18% that technical conditions require composition, and Cr 15%～16.5%, and Ni 2.0%～2.5%, Mo 0.9%～1.3%, N 0.03%～0.10%, adopts forging and forming technology, and it is characterized in that: final forging temperature is controlled at 1040 ℃～1160 ℃, deformation quantity is greater than 25%, the bulk storage air cooling.
In the manufacture method of blade forging of heavy type combustion engine of the present invention, for moving vane, adopt high tempering, temperature is 630 ℃～650 ℃, and temperature retention time is 1.5h～2h.For stator blade, adopt high tempering, temperature is 650 ℃～670 ℃, temperature retention time is 1.5h～2h.
Added the N element in Э ∏ 479 steel, its objective is to enlarge the austenitic area, crystal grain thinning improves the non-oxidizability of material, the design of this material, and exactly for the requirement of the environment for use that satisfies the combustion machine, but the control of the content of N element then becomes particularly important.According to the Russian side correlation technique file, quenching, tempering process have been adopted in raw-material heat treatment, temperature is 550 ℃～590 ℃, in order to reach the performance requirement of technical conditions, N content is controlled at the middle upper limit, and for follow-up forging heat treatment, then adopted the system of high tempering, promptly 640 ℃～680 ℃, the forging performance index after the processing does not reach the requirement of forging technical conditions, and its reason is as follows:
When N content is in the lower limit of technical conditions requirement, more free ferrite (2# material) has appearred, when adopting 570 ℃ of lonneals to handle, because ferritic existence, intensity reduces, therefore, when adopting lonneal, C+N content is controlled at the upper limit, and combination property is best; Increase N content to the upper limit or super last prescribing a time limit, free ferrite disappears in (1#, 3# material) substantially, when adopting 640 ℃～680 ℃ tempering, strong decomposition has taken place in martensitic structure, significant nodularization has taken place in martensite lath, and intensity significantly reduces, and for N content at 2 of lower limit
#The test material, significant variation, 2 do not take place in martensite lath
#The intensity of test material is higher relatively, and therefore, when adopting 640 ℃～680 ℃ of high temperings to handle, C+N content is controlled at lower limit, and combination property is best.The tissue contrast is seen Fig. 1～3,1# sample N content 0.13%, 2# sample N content 0.053%, 3# sample N content 0.099%.The original forging attitude of 1# sample tissue contains more retained austenite, 2
#The test material has more free ferrite, 3
#Free ferrite, the retained austenite of the original forging attitude tissue of test material are all less.
At this contradiction, common forging method and heat treatment method might not reach the serviceability of forging.Forge blade employing heating back in 1000 ℃～1200 ℃ scopes, adopts processing, its performance indications such as the following table 1 of quenching, high tempering then.
The various forging temperatures of table 1 adopt the performance indications table after quenching, high tempering are handled
As can be seen from Table 1, the contraction percentage of area of forging does not meet standard-required.
Even adopt the method for conditioning treatment, before final heat treatment, carry out modifier treatment, promptly increased normalizing and temper, do not satisfy standard-required yet.As following table 2.
The forging performance tables of data of table 2 modifier treatment
At the N content of material partially in the situation of the upper limit, the forging that common forging method is produced does not satisfy the requirement of serviceability, based on this contradictory phenomena, the present inventor has drafted testing program targetedly, at first be the intensity that will improve material, to such an extent as to after heat-treating,, the hardness of material and temperature-room type plasticity can be met the specification reducing on the intensity based and being not less than under the technical conditions.
In order to improve the plasticity of forging, the present invention has adopted the Forging Technology of working hardening, promptly Forging Technology and follow-up Technology for Heating Processing is combined, and has not only improved plasticity index, can improve 50%, and is little to the influence of intensity index simultaneously.
Description of drawings:
Fig. 1 forges the attitude metallographic structure for the 1# sample;
Fig. 2 forges the attitude metallographic structure for the 2# sample;
Fig. 3 forges the attitude metallographic structure for the 3# sample.
The specific embodiment:
The materials actual constituent is C 0.16%～0.18%, Cr 15.2%～16.2%, Ni 2 .2%～2.35%, Mo 1.02%～1.13%, N 0.088%～0.094%, adopts forging and forming technology, and final forging temperature has adopted 1040 ℃, 1120 ℃, 1160 ℃ three kinds of temperature, deformation quantity is greater than 25%, the bulk storage air cooling.Temperature has adopted 630 ℃, 650 ℃, 670 ℃, 690 ℃ four kinds of temperature, can see that the plasticity index of forging has improved, and can improve 50%, and the requirement that intensity index also can meet the specification.Test data sees Table following table 3.
Table 3 working hardening temperature influences tables of data to the performance indications of forging
From the data of table 3 as can be seen, deformation temperature is in the time of 1040 ℃～1160 ℃, and the forging performance index has reached the requirement of technical conditions, and plasticity index affluence degree is very big, also can determine the heat treatment temperature of blade from above-mentioned testing program.
When carrying out working hardening, deformation extent also is a leading indicator, and the inventor has determined comparatively suitable deflection by test of many times.See Table 4.
Table 4 deformation quantity is to the Effect on Performance tables of data
From the data of table 4 as can be seen, deformation quantity was greater than 25% o'clock, no matter be the requirement that has all reached technical conditions by the forging performance index after moving vane or the processing of the heat treating regime of stator blade, and deflection is less than 25% the forging that is numbered 1A8, and the performance indications of pressing after the moving vane heat treatment temperature is handled are defective.
Claims (1)
1, a kind of manufacture method of blade forging of heavy type combustion engine, material therefor is the 1Cr16Ni2MoN steel, it is C 0.12%～0.18% that technical conditions require composition, Cr 15%～16.5%, Ni 2.0%～2.5%, Mo 0.9%～1.3%, N 0.03%～0.10%, adopts forging and forming technology, and it is characterized in that: final forging temperature is controlled at 1040 ℃～1160 ℃, deformation quantity is greater than 25%, the bulk storage air cooling for moving vane, adopts high tempering, temperature is 630 ℃～650 ℃, and temperature retention time is 1.5h～2h; For stator blade, adopt high tempering, temperature is 650 ℃～670 ℃, temperature retention time is 1.5h～2h.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100463850A CN100496800C (en) | 2006-04-25 | 2006-04-25 | Method for manufacturing blade forged piece of heavy type combustion engine |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100463850A CN100496800C (en) | 2006-04-25 | 2006-04-25 | Method for manufacturing blade forged piece of heavy type combustion engine |
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| CN101062515A CN101062515A (en) | 2007-10-31 |
| CN100496800C true CN100496800C (en) | 2009-06-10 |
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| CNB2006100463850A Expired - Fee Related CN100496800C (en) | 2006-04-25 | 2006-04-25 | Method for manufacturing blade forged piece of heavy type combustion engine |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103009018B (en) * | 2011-09-20 | 2015-10-28 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of Ultra-fine Grained, high-strength alloy blade forging manufacture method |
| CN102605306B (en) * | 2012-03-22 | 2014-04-09 | 安徽华东光电技术研究所 | Spiral line shaping annealing process |
| CN103305672B (en) * | 2013-06-27 | 2015-01-28 | 洛阳中创重型机械有限公司 | Heat treatment process for ultra-large type tube plate forge piece of pressure container |
| CN107598068B (en) * | 2017-09-29 | 2019-09-20 | 中国航发航空科技股份有限公司 | A kind of blade of aviation engine forging technology based on nickel base superalloy |
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2006
- 2006-04-25 CN CNB2006100463850A patent/CN100496800C/en not_active Expired - Fee Related
Non-Patent Citations (4)
| Title |
|---|
| Ni-Cr-Fe系高温合金INCONEL 601材料的锻造工艺研究. 杨悦民，徐振高.水利电力机械，第23卷第6期. 2001 |
| Ni-Cr-Fe系高温合金INCONEL 601材料的锻造工艺研究. 杨悦民，徐振高.水利电力机械，第23卷第6期. 2001 * |
| 氮含量对3Π479钢显微组织和力学性能的影响. 杨钢，杨胜群，冯贞伟，马凤春，史凤岭，方波，王立民，刘正东，程世长.钢铁研究学报，第18卷第2期. 2006 |
| 氮含量对3Π479钢显微组织和力学性能的影响. 杨钢，杨胜群，冯贞伟，马凤春，史凤岭，方波，王立民，刘正东，程世长.钢铁研究学报，第18卷第2期. 2006 * |
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