CN104073612A - Heat treatment method for closed container - Google Patents
Heat treatment method for closed container Download PDFInfo
- Publication number
- CN104073612A CN104073612A CN201410312675.XA CN201410312675A CN104073612A CN 104073612 A CN104073612 A CN 104073612A CN 201410312675 A CN201410312675 A CN 201410312675A CN 104073612 A CN104073612 A CN 104073612A
- Authority
- CN
- China
- Prior art keywords
- encloses container
- air pressure
- upper cover
- encloses
- main body
- Prior art date
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000001816 cooling Methods 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 11
- 238000010791 quenching Methods 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 230000000844 anti-bacterial effect Effects 0.000 claims description 6
- 229910000859 α-Fe Inorganic materials 0.000 claims description 6
- 230000003115 biocidal effect Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 239000005864 Sulphur Substances 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 229910001566 austenite Inorganic materials 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 239000010955 niobium Substances 0.000 claims description 3
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 238000007669 thermal treatment Methods 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Landscapes
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a heat treatment method for a closed container. In a heat treatment manner of closing and simultaneously reasonably controlling air pressure, the outer part of the closed container has high strength, and the inner part of the closed container has good toughness, so that the actual requirement for the performance of the closed container is met.
Description
Technical field
The present invention relates to a kind of stainless heat treating method, be specifically related to a kind of heat treating method of antibacterial high strength strong adaptability encloses container.
Background technology
Encloses container Application Areas is more extensive, what in industry neutralization life, all can use arrives, as the small-sized encloses container of carrying liquid in the middle of living, in industry antiseptic or other purposes carrying liquids or other form materials all can use encloses container, also many in medical field application.
The needed performance of most encloses container is that external intensity is higher, and inside needs good toughness, and need to have antibacterial performance in a lot of fields.
Summary of the invention
The object of the invention is to propose a kind of heat treating method of encloses container.
For reaching this object, the present invention by the following technical solutions:
A heat treating method for encloses container, comprises the steps:
I, puts into encloses container body interior by heating unit, then encloses container upper cover is connected with encloses container main body is airtight by wear ring, thereby this encloses container is sealed;
II, remove the seal bar of encloses container upper cover, through hole by encloses container upper cover is electrically connected this heating unit with outside, and by this through hole, air pump is communicated with this encloses container, in encloses container, pump into gas, make encloses container internal gas pressure higher than barometric point, seal this through hole simultaneously;
III, to heating unit power supply, thereby heats from encloses container inside, regulates the air pressure in encloses container when heating, and this air pressure is remained unchanged, and Heating temperature is 1082 ~ 1200 DEG C; After insulation 21 ~ 32min, quench treatment is carried out in encloses container main body outside, quench cooled, to room temperature, also regulates the air pressure in encloses container when quench cooled, makes this air pressure keep substantially constant;
IV, extracts encloses container internal gas by air pump, makes air pressure in encloses container lower than barometric point;
V, powers to heating unit, thereby heats from encloses container inside, regulates the air pressure in encloses container when heating, and negative pressure is remained unchanged, and Heating temperature is 580 ~ 630 DEG C; After insulation 1.2 ~ 3.0h, air cooling processing is carried out in encloses container main body outside, air cooling, to room temperature, also regulates the air pressure in encloses container when air cooling, this negative pressure is remained unchanged.
As preferably, in Step II, making encloses container internal gas pressure is 1.1 ~ 1.8 times of barometric point; In step IV, make the air pressure in encloses container become negative pressure, its pressure is barometric point 0.52 ~ 0.89 times.
As preferably, described encloses container comprises encloses container upper cover, wear ring, encloses container main body, described encloses container upper cover arranges through hole, described through hole arranges emergence type seal bar, when encloses container work, described seal bar is mentioned and fixes with encloses container upper cover outside to upside, and the wear ring arranging by seal bar bottom seals, when encloses container thermal treatment, seal bar is removed.
As preferably, the material of described encloses container is antibacterial steel, described antibacterial steel is made up of the mass percent of following component: 0.05 ~ 0.09% carbon, 0.2 ~ 0.6% silicon, 1.0 ~ 1.5% manganese, 0.8 ~ 1.2% titanium, 12.2 ~ 13.4% nickel, 18.1 ~ 19.6% chromium, 2.4 ~ 2.6% nitrogen, 0.1 ~ 0.52% Cu, 0.08 ~ 0.12% niobium, 0.52 ~ 0.61% silver, sulphur content is less than 0.005%, phosphorus content is less than 0.005%, surplus is iron and inevitable impurity, described biphase antibiotic steel is alpha ferrite and γ austenite composition, wherein alpha ferrite volume accounting is 25 ~ 36%,
The outside tensile strength of described encloses container main body is 1058 ~ 1283MPa, and inner side yield strength is 680 ~ 720MPa, and inner side unit elongation is that the ballistic work of 19 ~ 22% ,-20 DEG C is 60 ~ 90J.
As preferably, the thickness of encloses container upper cover and encloses container main body is 1 ~ 12cm.
Effect of the present invention is:
1, make the tensile strength of encloses container outside by airtight specific heat treatment mode, the performances such as inner side toughness are greatly enhanced;
2, propose first to heat-treat in the mode of inside heating, exterior cooling, local thermal treatment is improved;
3, by the adjustment to internal pressure in heat treatment process, surprised discovery thermal effectiveness significantly promotes.
Embodiment
Embodiment 1
A heat treating method for encloses container, comprises the steps:
I, puts into encloses container body interior by heating unit, then encloses container upper cover is connected with encloses container main body is airtight by wear ring, thereby this encloses container is sealed;
II, remove the seal bar of encloses container upper cover, through hole by encloses container upper cover is electrically connected this heating unit with outside, and by this through hole, air pump is communicated with this encloses container, in encloses container, pump into gas, make encloses container internal gas pressure higher than barometric point, for 1.42 times of barometric point, seal this through hole simultaneously;
III, to heating unit power supply, thereby heats from encloses container inside, regulates the air pressure in encloses container when heating, and this air pressure is remained unchanged, and Heating temperature is 1113 DEG C; After insulation 28min, quench treatment is carried out in encloses container main body outside, quench cooled, to room temperature, also regulates the air pressure in encloses container when quench cooled, makes this air pressure keep substantially constant;
IV, extracts encloses container internal gas by air pump, makes air pressure in encloses container lower than barometric point, its pressure is barometric point 0.72 times;
V, powers to heating unit, thereby heats from encloses container inside, regulates the air pressure in encloses container when heating, and negative pressure is remained unchanged, and Heating temperature is 592 DEG C; After insulation 1.9h, air cooling processing is carried out in encloses container main body outside, air cooling, to room temperature, also regulates the air pressure in encloses container when air cooling, this negative pressure is remained unchanged.
The material of described encloses container upper cover and described encloses container main body is biphase antibiotic steel, described biphase antibiotic steel is made up of the mass percent of following component: 0.07% carbon, 0.45% silicon, 1.29% manganese, 1.1% titanium, 12.9% nickel, 18.8% chromium, 2.52% nitrogen, 0.46% Cu, 0.105% niobium, 0.59% silver, sulphur content is less than 0.002%, phosphorus content is less than 0.002%, surplus is iron and inevitable impurity, and described biphase antibiotic steel is alpha ferrite and γ austenite composition, and wherein alpha ferrite volume accounting is 31%; Thickness of slab is 4cm.
The outside tensile strength that records encloses container main body is 1089MPa, and inner side yield strength is 682MPa, and inner side unit elongation is that the ballistic work of 21% ,-20 DEG C is 81J; Sterilizing rate reaches 90%, and the relative appreciation rate of cell is 93%, and toxicity is rated 0.
Comparative example 1(does not carry out air pressure control)
Comprise the steps:
I, puts into encloses container body interior by heating unit, then encloses container upper cover is connected with encloses container main body is airtight by wear ring, thereby this encloses container is sealed;
II, to heating unit power supply, thereby heats from encloses container inside, and Heating temperature is 1113 DEG C; After insulation 28min, quench treatment, quench cooled to 25 DEG C are carried out in encloses container main body outside;
III, powers to heating unit, thereby heats from encloses container inside, and Heating temperature is 592 DEG C; After insulation 1.9h, air cooling processing is carried out in encloses container main body outside, air cooling is to room temperature.
The outside tensile strength that records encloses container main body is 982MPa, and inner side yield strength is 621MPa, and inner side unit elongation is that the ballistic work of 19% ,-20 DEG C is 80J.
Claims (5)
1. a heat treating method for encloses container, is characterized in that, comprises the steps:
I, puts into encloses container body interior by heating unit, then encloses container upper cover is connected with encloses container main body is airtight by wear ring, thereby this encloses container is sealed;
II, remove the seal bar of encloses container upper cover, through hole by encloses container upper cover is electrically connected this heating unit with outside, and by this through hole, air pump is communicated with this encloses container, in encloses container, pump into gas, make encloses container internal gas pressure higher than barometric point, seal this through hole simultaneously;
III, to heating unit power supply, thereby heats from encloses container inside, regulates the air pressure in encloses container when heating, and this air pressure is remained unchanged, and Heating temperature is 1082 ~ 1200 DEG C; After insulation 21 ~ 32min, quench treatment is carried out in encloses container main body outside, quench cooled, to room temperature, also regulates the air pressure in encloses container when quench cooled, makes this air pressure keep substantially constant;
IV, extracts encloses container internal gas by air pump, makes air pressure in encloses container lower than barometric point;
V, powers to heating unit, thereby heats from encloses container inside, regulates the air pressure in encloses container when heating, and negative pressure is remained unchanged, and Heating temperature is 580 ~ 630 DEG C; After insulation 1.2 ~ 3.0h, air cooling processing is carried out in encloses container main body outside, air cooling, to room temperature, also regulates the air pressure in encloses container when air cooling, this negative pressure is remained unchanged.
2. heat treating method according to claim 1, is characterized in that, in Step II, making encloses container internal gas pressure is 1.1 ~ 1.8 times of barometric point; In step IV, make the air pressure in encloses container become negative pressure, its pressure is barometric point 0.52 ~ 0.89 times.
3. according to the heat treating method described in claim 1 ~ 2, it is characterized in that, described encloses container comprises encloses container upper cover, wear ring, encloses container main body, described encloses container upper cover arranges through hole, and described through hole arranges emergence type seal bar, when encloses container work, described seal bar is mentioned and fixes with encloses container upper cover outside to upside, the wear ring arranging by seal bar bottom seals, and when encloses container thermal treatment, seal bar is removed.
4. according to the heat treating method described in claim 1 ~ 3, it is characterized in that, the material of described encloses container is antibacterial steel, described antibacterial steel is made up of the mass percent of following component: 0.05 ~ 0.09% carbon, 0.2 ~ 0.6% silicon, 1.0 ~ 1.5% manganese, 0.8 ~ 1.2% titanium, 12.2 ~ 13.4% nickel, 18.1 ~ 19.6% chromium, 2.4 ~ 2.6% nitrogen, 0.1 ~ 0.52% Cu, 0.08 ~ 0.12% niobium, 0.52 ~ 0.61% silver, sulphur content is less than 0.005%, phosphorus content is less than 0.005%, surplus is iron and inevitable impurity, described biphase antibiotic steel is alpha ferrite and γ austenite composition, wherein alpha ferrite volume accounting is 25 ~ 36%,
The outside tensile strength of described encloses container main body is 1058 ~ 1283MPa, and inner side yield strength is 680 ~ 720MPa, and inner side unit elongation is that the ballistic work of 19 ~ 22% ,-20 DEG C is 60 ~ 90J.
5. heat treating method according to claim 3, is characterized in that, the thickness of encloses container upper cover and encloses container main body is 1 ~ 12cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410312675.XA CN104073612B (en) | 2014-07-03 | 2014-07-03 | A kind of heat treating method of encloses container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410312675.XA CN104073612B (en) | 2014-07-03 | 2014-07-03 | A kind of heat treating method of encloses container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104073612A true CN104073612A (en) | 2014-10-01 |
| CN104073612B CN104073612B (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410312675.XA Active CN104073612B (en) | 2014-07-03 | 2014-07-03 | A kind of heat treating method of encloses container |
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| Country | Link |
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| CN (1) | CN104073612B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101021354A (en) * | 2007-02-15 | 2007-08-22 | 彭宏发 | Energy storage vapour-pressure type water heater and its water gage corollary assembly |
| CN101876073A (en) * | 2010-03-30 | 2010-11-03 | 袁茂豪 | Enameling process and enameling device for inner lining of polymer ceramic pipeline |
-
2014
- 2014-07-03 CN CN201410312675.XA patent/CN104073612B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101021354A (en) * | 2007-02-15 | 2007-08-22 | 彭宏发 | Energy storage vapour-pressure type water heater and its water gage corollary assembly |
| CN101876073A (en) * | 2010-03-30 | 2010-11-03 | 袁茂豪 | Enameling process and enameling device for inner lining of polymer ceramic pipeline |
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| Publication number | Publication date |
|---|---|
| CN104073612B (en) | 2015-12-09 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Yachao Inventor after: Liu Zhijun Inventor after: Niu Xiaomu Inventor after: Zhao Deyu Inventor after: Yan Guanyu Inventor before: Zhang Gang |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20151105 Address after: 101, room 130000, unit 18, red apple homeland, 4777 prosperous road, hi tech Development Zone, Jilin, Changchun Applicant after: DATANG CHANGCHUN THERMAL POWER CO., LTD. Address before: 102218 Beijing City, Changping District Tian Tong Garden 40-1-701 Applicant before: Zhang Gang |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |