CN107674956A - The Technology for Heating Processing of martensitic precipitation impeller and its application - Google Patents
The Technology for Heating Processing of martensitic precipitation impeller and its application Download PDFInfo
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- CN107674956A CN107674956A CN201610623564.XA CN201610623564A CN107674956A CN 107674956 A CN107674956 A CN 107674956A CN 201610623564 A CN201610623564 A CN 201610623564A CN 107674956 A CN107674956 A CN 107674956A
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- Prior art keywords
- technology
- impeller
- heating processing
- incubated
- martensitic precipitation
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- 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
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of Technology for Heating Processing of martensitic precipitation impeller and its application, belong to technical field of heat treatment technology.The technique comprises the following steps：(1) solutionizing is handled, and 2.0~3.0 hours are incubated at 1050 DEG C, then air-cooled with 1.5bar air pressure；(2) adjustment is handled, and 2.5~3.5 hours are incubated at 850 DEG C, then air-cooled with 3bar air pressure；(3) room temperature stops, and the FV520B S impellers after adjustment processing is come out of the stove stop 8 hours at room temperature；(4) Ageing Treatment is incubated when long：14~15 hours are incubated at 605~615 DEG C, it is then air-cooled with 1.5bar air pressure.Impeller after processed by the invention, it is particularly suitable in the case where batch is larger, while the first-time qualification rate of comprehensive mechanical property improves again, simplifies operation, improve labor productivity.
Description
Technical field
The present invention relates to technical field of heat treatment technology, and in particular to one kind martensitic precipitation
(FV520B-S) Technology for Heating Processing of impeller and its application, the technique use martensitic precipitation suitable for all
(FV520B-S) heat treatment of the Centrufugal compressor impeller or centrifugal blower impeller that prepare.
Background technology
The yield strength of Centrufugal compressor impeller or centrifugal blower impeller has bound requirement, by API 617- oil,
The requirement of chemistry and the industrial axle stream of gas, centrifugal compressor and expanding machine-compressor standard, the upper limit of yield strength can not be big
In 800MPa, and the lower limit of yield strength, 686MPa is cannot be below again by Intensity Design, it is desirable to which strict person even cannot be below
760MPa, this is a low major reason of impeller manufacture first-time qualification rate.Other impeller is by wheel cap and wheel disc or by taking turns
Lid, wheel disc and blade are by what is be welded to form, and wheel cap, wheel disc, the chemical composition of blade are impossible completely the same, after forming impeller
Managed with furnace treatment, the part of different chemical composition is managed with furnace treatment, i.e., heat treatment process parameter is identical, will often go out
Existing, the intensity of wheel cap, wheel disc or blade is high, and in the Near The Upper Limit of desired strength, and the intensity of another may require
Near lower limit, the probability for occurring performance deviation for blade is bigger.Therefore, wheel cap, wheel disc, the property of the part of blade three how are ensured
Can be all within the scope of requiring, i.e., how to improve comprehensive mechanical performance first-time qualification rate is for many years always in the class of research
Topic.After it have developed the Technology for Heating Processing of room temperature stop 8 hours, first-time qualification rate greatly improves, and uses till today always.But
With the progress of blower fan technology and widening for application field, the intensity requirement of impeller is gradually stepped up, lower limit has been increased to
760MPa, and upper limit 800MPa is that no more than, that is, the section of the yield strength of technical requirements is got over by the standards of API 617
It is next smaller, the requirement of the first-time qualification rate of comprehensive mechanical property is cannot be guaranteed by present prior heat treatment process.It has developed
After double aging technique, aging technique is incubated when have developed long again, while first-time qualification rate is further improved, can be simplified
Operation, is more suitable for the big situation of batch, raises labour productivity.
The content of the invention
It is an object of the invention to provide a kind of Technology for Heating Processing of martensitic precipitation impeller and its application,
The comprehensive mechanical property that martensitic precipitation (FV520B-S) impeller is improved by improved Technology for Heating Processing refers to
Target first-time qualification rate, in the case where increasing batch, ensure the first-time qualification rate of comprehensive mechanical property index, simplify simultaneously
Operation.
To achieve the above object, the technical scheme is that：
A kind of Technology for Heating Processing of martensitic precipitation impeller, the technique are followed successively by solutionizing processing, adjustment
Processing, room temperature stop and are incubated Ageing Treatment when long, specifically comprise the following steps：
(1) solutionizing is handled：2.0~3.0 hours are incubated under the conditions of 1050 DEG C, it is then air-cooled with 1.5bar air pressure；
(2) adjustment is handled：2.5~3.5 hours are incubated under the conditions of 850 DEG C, it is then air-cooled with 3bar air pressure；
(3) room temperature stops：Impeller after adjustment processing stops 8 hours at ambient temperature；
(4) Ageing Treatment is incubated when long：14~15 hours are incubated under the conditions of 605~615 DEG C, then with 1.5bar gas
Press air-cooled；In the step, according to the actual chemical composition of FV520B-S materials, the adjustment processing temperature in the range of 605~615 DEG C
Degree；Impeller after Ageing Treatment is incubated when long, no longer carry out secondary ageing processing.
In the heat treatment process of above-mentioned martensitic precipitation (FV520B-S) impeller, in solutionizing processing procedure
Controlled by partial pressure by vacuum degree control in stove and be in 10-60Pa, specific control process：Carried out during being warming up to 1050 DEG C
Vacuumize process, to stove in vacuum be less than 10-5Pa, nitrogen or nitrogen are then filled with stove, to stove in vacuum reach 1-
10Pa, maintain the vacuum (10-60Pa) constant in insulating process.The vacuum is that the vapour pressure calculating of foundation alloying element obtains
, the purpose of partial pressure control is to prevent the evaporation of alloying element, reduces the surface property of impeller.
The martensitic precipitation is FV520B-S materials, and its chemical composition meets the rule of FB13008 standards
It is fixed.
The equipment of the Technology for Heating Processing uses high pressure gas quenching vacuum heat treatment furnace.
After the impeller is using the processing of above-mentioned Technology for Heating Processing, the yield strength scope of impeller is 760-800MPa.
The invention has the advantages that：
1st, impeller is with martensitic precipitation (FV520B-S), and after Technology for Heating Processing of the present invention, material shows
Micro-assembly robot and the compound more uniformity separated out, make wheel disc, the mechanical property of wheel cap of the discrepant impeller of chemical composition
More uniformly, tend to consistent, so as to improve the first-time qualification rate of comprehensive mechanical property.
2nd, Technology for Heating Processing of the present invention is particularly suitable for the larger situation of batch, in the first-time qualification rate of comprehensive mechanical property
While raising again, operation is simplified, improves labor productivity.
3rd, Technology for Heating Processing of the present invention can not only be used in Centrufugal compressor impeller or centrifugal blower impeller (FV520B-
S on), and can be used on all workpiece using martensitic precipitation (FV520B-S).
4th, present invention process is stopped, on the basis of double aging innovative technology in room temperature, using it is long when be incubated a timeliness
Processing, under the technical conditions that yield strength requires that section reduces, the first-time qualification rate of comprehensive mechanical property is improved again.
While further improving first-time qualification rate, operation can be simplified, be more suitable for the big situation of batch, improve work production
Rate.Comprehensive mechanical property is more stable, reduces the fluctuation range of mechanical property, and comprehensive mechanical property index is easily once closed
Lattice.
Embodiment
With reference to the embodiment detailed description present invention, the Equipment for Heating Processing of following examples and comparative example is true using high pressure gas quenching
Empty heat-treatment furnace, for the vertical high-pressure gas-quenching vacuum furnace of GV6060-6BAR-1937 types of Abar-Ipsen companies of U.S. production.
Embodiment 1
Centrufugal compressor impeller martensitic precipitation (FV520B-S), the chemical composition of its wheel cap：C:
0.051wt.%；Si：0.34wt.%；Mn：0.72wt.%；Cr：13.8wt.%；Ni：5.39wt.%；Mo：1.45wt.%；
S：0.005wt.%；P：0.018wt.%；Nb：0.33wt.%；Cu：1.51wt.%；Fe：Surplus；The chemical composition of wheel disc：C:
0.051wt.%；Si：0.44wt.%；Mn：0.54wt.%；Cr：13.48wt.%；Ni：5.43wt.%；Mo：1.38wt.%；
S：0.003wt.%；P：0.019wt.%；Nb：0.32wt.%；Cu：1.50wt.%；Fe：Surplus.It is heat-treated, wrapped
Include following steps：
(1) solutionizing is handled, and 2.0 hours are incubated at 1050 DEG C, then air-cooled with 1.5bar air pressure；
(2) adjustment is handled, and 2.5 hours are incubated at 850 DEG C, then air-cooled with 3bar air pressure；
(3) the FV520B-S materials after adjustment processing stop 8 hours at room temperature；
(4) Ageing Treatment is incubated when long：14 hours are incubated at 605 DEG C, it is then air-cooled with 1.5bar air pressure；
Comparative example 1
Difference from Example 1 is：The soaking time of step (4) 4 hours.
FV520B-S impellers after embodiment 1 is heat-treated after tested, the indices of its comprehensive mechanical property are completely qualified,
And the intensity index of comparative example 1 is underproof, data are shown in Tables 1 and 2, and the indices of comprehensive mechanical property are completely qualified
The stability that the mechanical property of Ageing Treatment is incubated when reason is long improves, and uniformity also improves.
The performance data of FV520B-S impellers after the heat treatment of the embodiment 1 of table 1
FV520B-S impeller performance data after the heat treatment of the comparative example 1 of table 2
Embodiment 2
Centrufugal compressor impeller martensitic precipitation (FV520B-S), the chemical composition of its wheel cap：C:
0.051wt.%；Si：0.34wt.%；Mn：0.72wt.%；Cr：13.8wt.%；Ni：5.39wt.%；Mo：1.45wt.%；
S：0.005wt.%；P：0.018wt.%；Nb：0.33wt.%；Cu：1.51wt.%；Fe：Surplus；The chemical composition of wheel disc：C:
0.051wt.%；Si：0.44wt.%；Mn：0.54wt.%；Cr：13.48wt.%；Ni：5.43wt.%；Mo：1.38wt.%；
S：0.003wt.%；P：0.019wt.%；Nb：0.32wt.%；Cu：1.50wt.%；Fe：Surplus.It is heat-treated, wrapped
Include following steps：
(1) solutionizing is handled, and 3.0 hours are incubated at 1050 DEG C, then air-cooled with 1.5bar air pressure；
(2) adjustment is handled, and 3.5 hours are incubated at 850 DEG C, then air-cooled with 3bar air pressure；
(3) the FV520B-S materials after adjustment processing stop 8 hours at room temperature；
(4) Ageing Treatment is incubated when long：15 hours are incubated at 605 DEG C, it is then air-cooled with 1.5bar air pressure；
Comparative example 2
Difference from Example 2 is：The soaking time of step (4) 5 hours.
FV520B-S impellers after embodiment 2 is heat-treated after tested, the indices of its comprehensive mechanical property are completely qualified,
And the intensity index of comparative example 1 is underproof, data are shown in Table 3 and table 4, and the indices of comprehensive mechanical property are completely qualified
The stability that the mechanical property of Ageing Treatment is incubated when reason is long improves, and uniformity also improves.
The performance data of FV520B-S impellers after the heat treatment of the embodiment 2 of table 3
FV520B-S impeller performance data after the heat treatment of the comparative example 2 of table 4
Claims (9)
- A kind of 1. Technology for Heating Processing of martensitic precipitation impeller, it is characterised in that：The technique comprises the following steps：(1) solutionizing is handled：2.0~3.0 hours are incubated under the conditions of 1050 DEG C, it is then air-cooled with 1.5bar air pressure；(2) adjustment is handled：2.5~3.5 hours are incubated under the conditions of 850 DEG C, it is then air-cooled with 3bar air pressure；(3) room temperature stops：Impeller after adjustment processing stops 8 hours at ambient temperature；(4) Ageing Treatment is incubated when long：14~15 hours are incubated in 605~615 DEG C of conditions, then with 1.5bar air pressure wind It is cold.
- 2. the Technology for Heating Processing of martensitic precipitation impeller according to claim 1, it is characterised in that：It is described Martensitic precipitation is FV520B-S materials, and its chemical composition meets the regulation of FB13008 standards.
- 3. the Technology for Heating Processing of martensitic precipitation impeller according to claim 1, it is characterised in that：Step (1) it is 10-60Pa that vacuum is controlled in solutionizing processing procedure.
- 4. the Technology for Heating Processing of martensitic precipitation impeller according to claim 1, it is characterised in that：Step (1) in solutionizing processing procedure, the method for controlling vacuum is：Vacuumize process is carried out while heating, until vacuum in stove Degree is less than 10-5Pa, nitrogen or nitrogen are then filled with stove, to stove in vacuum reach 1-10Pa, maintain this true in insulating process Reciprocal of duty cycle is constant.
- 5. the Technology for Heating Processing of martensitic precipitation impeller according to claim 2, it is characterised in that：Step (4) in, according to the actual chemical composition of FV520B-S materials, Ageing Treatment is incubated when adjusting long in the range of 605~615 DEG C Temperature.
- 6. the Technology for Heating Processing of martensitic precipitation impeller according to claim 1, it is characterised in that：Through step Suddenly the impeller after Ageing Treatment is incubated when (4) are long, no longer carries out secondary ageing processing.
- 7. the Technology for Heating Processing of martensitic precipitation impeller according to claim 1, it is characterised in that：It is described The equipment of Technology for Heating Processing uses high pressure gas quenching vacuum heat treatment furnace.
- 8. the Technology for Heating Processing of martensitic precipitation impeller according to claim 1, it is characterised in that：It is described After impeller is using Technology for Heating Processing processing, the yield strength of impeller is 760-800MPa.
- 9. the application of the Technology for Heating Processing of martensitic precipitation impeller according to claim 1, its feature exist In：The Technology for Heating Processing is used for the Centrufugal compressor impeller or centrifugal blower leaf prepared using martensitic precipitation Wheel.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108384927A (en) * | 2018-05-22 | 2018-08-10 | 大连透平机械技术发展有限公司 | A kind of heat treatment method of 17-4PH materials |
| CN109487061A (en) * | 2019-01-10 | 2019-03-19 | 成都先进金属材料产业技术研究院有限公司 | The heat treatment method of martensitic precipitation 06Cr15Ni5Cu2Ti |
| CN109880991A (en) * | 2019-03-14 | 2019-06-14 | 武汉西北风机发展有限公司 | A kind of thermal treatment production process of high anticorrosion antiwear once dust collection of converter draught fan impeller |
| CN113774291A (en) * | 2021-08-25 | 2021-12-10 | 哈尔滨工程大学 | Ultra-low carbon high-performance maraging stainless steel and preparation method thereof |
| CN113789430A (en) * | 2021-09-10 | 2021-12-14 | 贵州群建精密机械有限公司 | Heat treatment method for improving mechanical property of 05Cr17Ni4Cu4Nb steel |
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| CN104178611A (en) * | 2013-05-20 | 2014-12-03 | 沈阳鼓风机集团安装检修配件有限公司 | S520B material heat treatment technology and its application |
| CN105755231A (en) * | 2014-12-16 | 2016-07-13 | 沈阳透平机械股份有限公司 | Compressor impeller FV520B-S material heat treatment process |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108384927A (en) * | 2018-05-22 | 2018-08-10 | 大连透平机械技术发展有限公司 | A kind of heat treatment method of 17-4PH materials |
| CN108384927B (en) * | 2018-05-22 | 2019-10-18 | 大连透平机械技术发展有限公司 | A kind of heat treatment method of 17-4PH material |
| CN109487061A (en) * | 2019-01-10 | 2019-03-19 | 成都先进金属材料产业技术研究院有限公司 | The heat treatment method of martensitic precipitation 06Cr15Ni5Cu2Ti |
| CN109487061B (en) * | 2019-01-10 | 2020-07-07 | 成都先进金属材料产业技术研究院有限公司 | Heat treatment method of martensite precipitation hardening stainless steel 06Cr15Ni5Cu2Ti |
| CN109880991A (en) * | 2019-03-14 | 2019-06-14 | 武汉西北风机发展有限公司 | A kind of thermal treatment production process of high anticorrosion antiwear once dust collection of converter draught fan impeller |
| CN109880991B (en) * | 2019-03-14 | 2020-12-08 | 武汉西北风机发展有限公司 | Heat treatment production process of high-corrosion-resistance wear-resistance converter primary dust removal fan impeller |
| CN113774291A (en) * | 2021-08-25 | 2021-12-10 | 哈尔滨工程大学 | Ultra-low carbon high-performance maraging stainless steel and preparation method thereof |
| CN113789430A (en) * | 2021-09-10 | 2021-12-14 | 贵州群建精密机械有限公司 | Heat treatment method for improving mechanical property of 05Cr17Ni4Cu4Nb steel |
| CN113789430B (en) * | 2021-09-10 | 2023-03-14 | 贵州群建精密机械有限公司 | Heat treatment method for improving mechanical properties of 05Cr17Ni4Cu4Nb steel |
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Application publication date: 20180209 |