CN103695606B - A kind of method that improves B50A789G stainless steel material intensity - Google Patents
A kind of method that improves B50A789G stainless steel material intensity Download PDFInfo
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- CN103695606B CN103695606B CN201310672452.XA CN201310672452A CN103695606B CN 103695606 B CN103695606 B CN 103695606B CN 201310672452 A CN201310672452 A CN 201310672452A CN 103695606 B CN103695606 B CN 103695606B
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Abstract
The invention provides a kind of method of the B50A789G of raising class stainless steel material intensity, it can solve the problem of B50A789G class stainless steel material low strength after the heat treatment method that adopts air cooling after conventional quenching. B50A789G class stainless steel material or B50A789G class stainless steel material blade are put into general quenching charging basket equably, and then after being put into quenching heating furnace heating, quenching charging basket is incubated, again B50A789G class stainless steel material or B50A789G class stainless steel material blade are carried out to cooling processing, it is characterized in that: cooling processing is water-cooled processing, B50A789G class stainless steel material or B50A789G class stainless steel material blade are put into tank and kept 2 hours～6 hours, and in tank, cooling water temperature is 0 DEG C～26 DEG C.
Description
Technical field
The present invention relates to the Technology for Heating Processing field of B50A789G class martensite PH stainless steel material blade, be specially a kind of method of the B50A789G of raising class stainless steel material intensity.
Background technology
Turbine blade, compressor blade usually there will be the situation of low strength after heat treatment; the important performance indexes that causes turbine blade, compressor blade is not reached technical requirement by this; thereby make blade adjusting in operation process because low strength produces fatigue crack; and cause that blade destroys early; its harm is serious, is that turbine blade, compressor blade in use do not allow to occur. After the Technology for Heating Processing of existing B50A789G class stainless steel material turbine blade, compressor blade air cooling after adopting conventional method to quench, because the cooldown rate of air cooling is low, B50A789G class stainless steel material product retained austenite after quenching can not fully be changed martensite into, the low strength that causes product, does not reach technical conditions.
Summary of the invention
For the problems referred to above, the invention provides a kind of method of the B50A789G of raising class stainless steel material intensity, it can solve the problem of B50A789G class stainless steel material low strength after the heat treatment method that adopts air cooling after conventional quenching.
Its technical scheme is such, B50A789G class stainless steel material or B50A789G class stainless steel material blade are put into general quenching charging basket equably, and then after being put into quenching heating furnace heating, described quenching charging basket is incubated, again described B50A789G class stainless steel material or B50A789G class stainless steel material blade are carried out to cooling processing, it is characterized in that: described cooling processing is water-cooled processing, described B50A789G class stainless steel material or B50A789G class stainless steel material blade are put into tank and kept 2 hours～6 hours, in described tank, cooling water temperature is 0 DEG C～26 DEG C.
The beneficial effect of the inventive method is: it adopts the rear K cryogenic treatment of quenching can make retained austenite in material fully change martensite into B50A789G class stainless steel material, thereby can effectively improve the intensity of material, thereby can improve the turbine blade of B50A789G class stainless steel material, the fatigue resistance of compressor blade entirety, extend the service life of blade, give full play to the comprehensive mechanical performance of B50A789G class stainless steel material; And after Quenching Treatment, adopt the mode of low temperature water-cooled to carry out cold treatment to material, and its cooling effectiveness is high, and producing cost is low, can greatly enhance productivity, reduce production costs.
Detailed description of the invention
Embodiment mono-:
B50A789G class stainless steel material or B50A789G class stainless steel material blade are put into general quenching charging basket equably, and then after being put into quenching heating furnace heating, quenching charging basket is incubated, again B50A789G class stainless steel material or B50A789G class stainless steel material blade are put into the tank that fills with cooling water and carry out water-cooled processing, in tank, cooling water temperature is 0 DEG C, and B50A789G class stainless steel material or B50A789G class stainless steel material blade keep 4 hours in tank.
Embodiment bis-:
B50A789G class stainless steel material or B50A789G class stainless steel material blade are put into general quenching charging basket equably, and then after being put into quenching heating furnace heating, quenching charging basket is incubated, again B50A789G class stainless steel material or B50A789G class stainless steel material blade are put into the tank that fills with cooling water and carry out water-cooled processing, in tank, cooling water temperature is 26 DEG C, and B50A789G class stainless steel material or B50A789G class stainless steel material blade keep 2 hours in tank.
Embodiment tri-:
B50A789G class stainless steel material or B50A789G class stainless steel material blade are put into general quenching charging basket equably, and then after being put into quenching heating furnace heating, quenching charging basket is incubated, again B50A789G class stainless steel material or B50A789G class stainless steel material blade are put into the tank that fills with cooling water and carry out water-cooled processing, in tank, cooling water temperature is 13 DEG C, and B50A789G class stainless steel material or B50A789G class stainless steel material blade keep 6 hours in tank.
With the Technology for Heating Processing comparison of air cooling after conventional quenching, after employing above-described embodiment, the performance comparison of B50A789G class stainless steel material sees the following form:
Claims (1)
1. one kind is improved the method for B50A789G stainless steel material intensity, B50A789G stainless steel material or B50A789G stainless steel material blade are put into general quenching charging basket equably, and then after being put into quenching heating furnace heating, described quenching charging basket is incubated, again described B50A789G stainless steel material or B50A789G stainless steel material blade are carried out to cooling processing, it is characterized in that: described cooling processing is water-cooled processing, described B50A789G stainless steel material or B50A789G stainless steel material blade are put into tank and kept 2 hours～6 hours, in described tank, cooling water temperature is 0 DEG C～26 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310672452.XA CN103695606B (en) | 2013-12-12 | 2013-12-12 | A kind of method that improves B50A789G stainless steel material intensity |
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| CN201310672452.XA CN103695606B (en) | 2013-12-12 | 2013-12-12 | A kind of method that improves B50A789G stainless steel material intensity |
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| Publication Number | Publication Date |
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| CN103695606A CN103695606A (en) | 2014-04-02 |
| CN103695606B true CN103695606B (en) | 2016-05-25 |
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| CN201310672452.XA Active CN103695606B (en) | 2013-12-12 | 2013-12-12 | A kind of method that improves B50A789G stainless steel material intensity |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1186122A (en) * | 1996-12-23 | 1998-07-01 | 陈铁石 | Production of cutting edges for chemical fibers |
| CN102776335A (en) * | 2012-07-16 | 2012-11-14 | 张家港海锅重型锻件有限公司 | Process for manufacturing 17-4PH Martensite precipitation-hardening stainless steel forgings |
| CN103320707A (en) * | 2013-06-20 | 2013-09-25 | 宝山钢铁股份有限公司 | High-strength stainless steel tube with excellent toughness and manufacturing method thereof |
-
2013
- 2013-12-12 CN CN201310672452.XA patent/CN103695606B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1186122A (en) * | 1996-12-23 | 1998-07-01 | 陈铁石 | Production of cutting edges for chemical fibers |
| CN102776335A (en) * | 2012-07-16 | 2012-11-14 | 张家港海锅重型锻件有限公司 | Process for manufacturing 17-4PH Martensite precipitation-hardening stainless steel forgings |
| CN103320707A (en) * | 2013-06-20 | 2013-09-25 | 宝山钢铁股份有限公司 | High-strength stainless steel tube with excellent toughness and manufacturing method thereof |
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| CN103695606A (en) | 2014-04-02 |
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Inventor after: Xia Bing Inventor after: Jie Nianzhu Inventor before: Xia Bing |
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