CN213570607U - Protection device for vacuum aging treatment of solid solution state 1Cr11Ni23Ti3MoB workpiece - Google Patents
Protection device for vacuum aging treatment of solid solution state 1Cr11Ni23Ti3MoB workpiece Download PDFInfo
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- CN213570607U CN213570607U CN202022339254.XU CN202022339254U CN213570607U CN 213570607 U CN213570607 U CN 213570607U CN 202022339254 U CN202022339254 U CN 202022339254U CN 213570607 U CN213570607 U CN 213570607U
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Abstract
The utility model relates to a protection device for solid solution state finished piece vacuum aging treatment, especially a protection device for solid solution state austenite hot strong stainless steel finished piece belongs to metal material heat treatment technical field. A protection device for vacuum aging treatment of a solid solution state 1Cr11Ni23Ti3MoB workpiece is a sealing structure, the material of the protection device is alloy, and metal chips with large chemical activity are filled in the sealing structure; the solid solution state 1Cr11Ni23Ti3MoB part is completely embedded into the metal chips, and the solid solution state 1Cr11Ni23Ti3MoB part does not touch the inner wall of the sealing structure. The utility model has the advantages of as follows: 1. the problem that the surface of a solid solution state 1Cr11Ni23Ti3MoB workpiece is blackened, blued and other abnormal metallic colors after vacuum aging treatment is obviously solved, so that the surface of the workpiece has a normal metallic color (the surface of the workpiece is bright); 2. the product can be normally delivered, the production efficiency is improved, the energy is saved, and no environmental pollution is caused.
Description
Technical Field
The utility model relates to a protection device for solid solution state finished piece vacuum aging treatment, especially a protection device for solid solution state austenite hot strong stainless steel finished piece belongs to metal material heat treatment technical field.
Background
1Cr11Ni23Ti3MoB steel is produced by precipitation of intermetallic compound Ni3The (Al, Ti) is austenite hot-strength stainless steel which is a main strengthening phase, has low carbon content, and is mainly applied to the fields of aviation, aerospace and the like. After the aging heat treatment of the steel in an effective heating area in a vacuum heat treatment furnace in a naked state, the surface of the steel can be blackened and blued, and the steel does not have normal metal color, so that the product can not be normally delivered, and the normal production process is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a solid solution state 1Cr11Ni23Ti3A protection device for vacuum aging treatment of MoB parts is used for solving solid solution state 1Cr11Ni23Ti3The surface of the MoB workpiece is blackened and blued after vacuum aging treatment.
In order to achieve the above purpose, the utility model adopts the following technical scheme: used for solid solution state 1Cr11Ni23Ti3The protection device for the vacuum aging treatment of the MoB workpiece is a sealing structure, the protection device is made of alloy, and metal chips with high chemical activity are filled in the sealing structure; solid solution state 1Cr11Ni23Ti3The MoB part is completely embedded in the metal chips and is in a solid solution state of 1Cr11Ni23Ti3The MoB part does not touch the inner wall of the sealing structure.
Preferably, the alloy is stainless steel, a superalloy, or a titanium alloy.
Preferably, the metal chips are titanium chips.
Preferably, the protection device is a sealed box body and comprises a box body and a cover, and the size of an inner cavity of the box body is larger than that of solid solution state 1Cr11Ni23Ti3Size of MoB part.
Preferably, the wall thickness of the box body and the cover is 1 mm-5 mm.
The principle is as follows: during vacuum heat treatment, other steel, stainless steel, high temperature alloy and titanium alloy have no mutual infiltration problem, and titanium has great chemical activity and can react with O, N, H, CO2, water vapor, ammonia gas and other gas in the atmosphere to eliminate harmful components in the atmosphere to stainless steel parts, so that solid solution 1Cr in solid solution state11Ni23Ti3The MoB part has less contact atmosphere and does not turn blue or black any more, but has normal metal color.
The protection method of the vacuum aging treatment mainly comprises the following steps:
the method comprises the following steps: cleaning the sealing structure and enough metal chips with acetone and drying, then filling the sealing structure with the metal chips, and then adding the mixture 1Cr11Ni23Ti3The MoB workpiece is embedded in the metal chips, so that the workpiece is completely wrapped by the metal chips and cannot touch the inner wall of the sealing structure;
step two: and (3) placing the protection device on an automatic lifting material rest in a vacuum furnace, vacuumizing the vacuum furnace to a certain pressure intensity after the furnace is closed, and then starting to heat up for aging treatment. The aging system adopts second-order aging.
The second-order aging comprises the following steps: 500-780 ℃, heat preservation time: cooling to 500-660 ℃ along with the furnace for 1-20 h, and keeping the temperature for: air cooling for 1-20 h, and keeping the vacuum pressure at 1.33-13.3 Pa during heating and heat preservation.
Compared with the prior art, the utility model has the advantages of as follows:
1. obviously solves the problem of solid solution state 1Cr11Ni23Ti3The MoB workpiece has the problems of surface blackening, bluing and other abnormal metal colors after vacuum aging treatment, so that the surface of the MoB workpiece has normal metal colors (the surface of the workpiece is bright);
2. the product can be normally delivered, the production efficiency is improved, the energy is saved, and no environmental pollution is caused.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention, wherein a is a box body; b is a cover;
in the figure, 1, a box body; 2. and a cover.
Detailed Description
The invention will be further described with reference to fig. 1: used for solid solution state 1Cr11Ni23Ti3The protection device for the vacuum aging treatment of the MoB workpiece is a stainless steel box and comprises a box body 1 and a cover 2, wherein the cover 2 can completely cover an opening of the box body 1 so as to form a sealing structure; titanium chips are filled in the box body 1, and 1Cr is in solid solution state11Ni23Ti3The MoB part is completely embedded in the titanium chips and is in a solid solution state of 1Cr11Ni23Ti3The MoB part does not touch the inner wall of the sealing structure.
As shown in FIG. 1, FIG. 1 shows a box body and a cover of a stainless steel box, which is made of 1Cr18Ni9Ti(or other stainless steel material), material thickness: 1 mm-5 mm. Fig. 1 shows reference dimensions, and a box of the required dimensions can be made according to the actual dimensions of the piece, without any need for great precision, but with the guarantee that the piece is completely inserted into the box and that the cover 2 completely covers the box body 1.
The protection method of the vacuum aging treatment mainly comprises the following steps:
step one, welding some stainless steel plates into a box body, taking enough titanium chips, cleaning the stainless steel box body and the titanium chips with acetone, airing, filling the titanium chips in the box body, and then carrying out solid solution state 1Cr11Ni23Ti3The MoB workpiece is embedded in the titanium chips, so that the workpiece is completely surrounded by the titanium chips and cannot touch the box bottom of the box wall, and the workpiece is covered by a stainless steel cover matched with the box body;
and step two, placing the stainless steel box on an automatic lifting material rest in a vacuum furnace, vacuumizing the vacuum furnace until the pressure is 1.33-13.3 Pa after the furnace is closed, and then heating for aging treatment. The aging system adopts second-order aging: the initial heating temperature is 760 ℃, the heat preservation is carried out for 16h, after the heat preservation is finished, the furnace is cooled to 640 ℃, the heat preservation is carried out for 16h, after the heat preservation is finished, air cooling is carried out, and the vacuum pressure during the heating and heat preservation is kept to be 1.33-13.3 Pa. Obtaining a normal metallic color (bright surface of a workpiece) surface and satisfying the tensile strength sigmabThe pressure is not less than 980MPa, and the HRC is not less than 32.
The above embodiments are merely preferred embodiments of the present invention, and do not limit the present invention. It will be appreciated by those skilled in the art that any extension, modification or the like without departing from the principles of the invention is within the scope of the invention.
Claims (5)
1. Used for solid solution state 1Cr11Ni23Ti3Protection device of MoB finished piece vacuum aging treatment which characterized in that: the protection device is a sealing structure, the material of the protection device is alloy, and metal chips with large chemical activity are filled in the sealing structure; solid solution state 1Cr11Ni23Ti3The MoB part is completely embedded in the metal chips and is in a solid solution state of 1Cr11Ni23Ti3The MoB part does not touch the inner wall of the sealing structure.
2. The alloy according to claim 1 for solid solution state 1Cr11Ni23Ti3Protection device of MoB finished piece vacuum aging treatment which characterized in that: the alloy is stainless steel, high-temperature alloy or titanium alloy.
3. The alloy according to claim 1 for solid solution state 1Cr11Ni23Ti3Protection device of MoB finished piece vacuum aging treatment which characterized in that: the metal chips are titanium chips.
4. The alloy according to claim 1 for solid solution state 1Cr11Ni23Ti3Protection device of MoB finished piece vacuum aging treatment which characterized in that: the protection device is a sealed box body and comprises a box body and a cover, and the size of the inner cavity of the protection device is larger than that of solid solution state 1Cr11Ni23Ti3Size of MoB part.
5. The alloy according to claim 4 for solid solution 1Cr11Ni23Ti3Protection device of MoB finished piece vacuum aging treatment which characterized in that: the wall thickness of the box body and the cover is 1 mm-5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022339254.XU CN213570607U (en) | 2020-10-20 | 2020-10-20 | Protection device for vacuum aging treatment of solid solution state 1Cr11Ni23Ti3MoB workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022339254.XU CN213570607U (en) | 2020-10-20 | 2020-10-20 | Protection device for vacuum aging treatment of solid solution state 1Cr11Ni23Ti3MoB workpiece |
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| CN213570607U true CN213570607U (en) | 2021-06-29 |
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| CN202022339254.XU Active CN213570607U (en) | 2020-10-20 | 2020-10-20 | Protection device for vacuum aging treatment of solid solution state 1Cr11Ni23Ti3MoB workpiece |
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