CN85100141A - Anti-stress corrosion sealing alloy - Google Patents
Anti-stress corrosion sealing alloy Download PDFInfo
- Publication number
- CN85100141A CN85100141A CN 85100141 CN85100141A CN85100141A CN 85100141 A CN85100141 A CN 85100141A CN 85100141 CN85100141 CN 85100141 CN 85100141 A CN85100141 A CN 85100141A CN 85100141 A CN85100141 A CN 85100141A
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- CN
- China
- Prior art keywords
- stress corrosion
- alloy
- sealing
- sealing alloy
- present
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- 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.)
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Abstract
It is alloys with controlled expansion that anti-stress corrosion sealing alloy belongs to the Fe-Ni-Co system and the Fe-Ni-Co-Cu that use with pottery or hard glass sealing-in.The present invention seeks to solving thick device gas leakage, the quality problems such as stress corrosion resistant and anti-hydrogen embrittlement ability of causing of sealing alloy crystal grain.Feature of the present invention is: in sealing alloy, add Zr with heat after shrend high temperature chilling, can make grain fineness number less than 5 grades.The present invention is owing to there is a grain refining, and anti-stress corrosiveness is strong, improve advantage such as processibility, can be used for making electron tube etc.
Description
The invention belongs to the novel sealing alloy that is used for pottery and hard glass sealing-in.
Now general both at home and abroad such sealing alloy Fe-Ni-Co system (the surplus Fe of Ni29 Co18, the surplus Fe of Ni33 Co14, the surplus Fe of Ni35 Co9) and Fe-Ni-Co-Cu system (the surplus Fe of Ni36 Co5 Cu3).The quality problems that all have the thick and anti-stress corrosion performance difference of crystal grain easily make deep-draw the orange peel shape defective occur and produce scolder infiltration, stress corrosion resistant and anti-hydrogen embrittlement poor performance in the part surface in addition.Because former thick with sealing alloy high temperature crystal grain, force now aborning with reducing annealing temperature, avoiding occurring coarse grain, but can reduce tube life-span like this, more be difficult to make the long lifetime high power valve that adopts high-temperature solder.
States such as U.S., day, moral, Soviet Union all suppress such sealing alloy high temperature grain growth problem in research, and the effect of element crystal grain thinning in steel is added in research.In pure iron and carbon steel, studied and add Zr and suppress intergranular stress corrosion cracking problem (the clear 48-18408 of Japan's special permission), and its DeGrain is different with alloy system of the present invention with crystal grain thinning ， And.
The objective of the invention is to suppress sealing alloy high temperature grain growth, improve processing, performances such as stress corrosion resistant are to improve its life-span.
Main points of the present invention are: not changing Fe-Ni-CO system and Fe-Ni-Co-Cu is the alloy fundamental component, still keeps the expansion character of former alloy, with assurance and hard glass or pottery coupling.Add 0.02～0.8Zr(weight %), with the N that exists in the alloy
2Form the ZrN particulate that disperse distributes, it is of a size of, and the hundreds of dust～less than 1 micron, the quenching technology condition can be: after 1100 ℃～1200 ℃ heating, adopt shrend high temperature chilling (greater than 950 ℃) method.
The effect of sealing alloy of the present invention:
1. crystal grain thinning, make 1050 ℃ of annealing half an hour after grain fineness number less than Pyatyi.The open infiltration.
2. anti-stress corrosion performance obviously improves.Soak in the 3.5% NaCl aqueous solution after 150 hours, flawless occurs.
3. the anti-hydrogen embrittlement ability improves, and the resist chemical performance improves nearly 1 times than no Zr alloy.
4. improve hot workability, improve metallurgical lumber recovery 25～100%.Can produce long-life tube.Reduce cost, improve device reliability, remarkable in economical benefits.Can be used for making electron tube, semiconducter device, unicircuit framework etc.
Embodiment: in Fe-Ni-Co system and Fe-Ni-Co-Cu system, N in the crystal grain thinning effect of Zr and smelting process and the alloy
2, O
2Relevant Deng gas, foreign matter content, best results when the Zr amount meets the ZrN equivalence ratio is generally added 0.02～0.8%Zr(weight %), under the vacuum metling condition, the optimum addition of Zr is 0.05～0.06%(weight %), the cast of institute's sealing-in has argon arc welding technique, N in the alloy
20.002%, O
20.001% o'clock, Zr amount should be less than 0.16(weight %).Adopt the quenching technology condition to be: after 1100 ℃～1200 ℃ heating.Use shrend high temperature chilling (greater than 950 ℃) again.
Claims (2)
1, Fe-Ni-Co system and Fe-Ni-Co-Cu a kind of and pottery and the sealing-in of hard glass resistance to air loss are alloy, it is characterized in that wherein adding 0.02～0.8% Zr (weight %).
2, according to the production technique of the described sealing alloy of claim 1, it is characterized in that its quenching technology condition is: after 1100 ℃～1200 ℃ heating, adopt shrend high temperature chilling (greater than 950 ℃).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85100141A CN85100141B (en) | 1985-04-01 | 1985-04-01 | Anti-stress corrosion sealing alloy |
| JP61074126A JPH07116576B2 (en) | 1985-04-01 | 1986-03-31 | Stress corrosion cracking sealing alloy and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85100141A CN85100141B (en) | 1985-04-01 | 1985-04-01 | Anti-stress corrosion sealing alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85100141A true CN85100141A (en) | 1987-01-17 |
| CN85100141B CN85100141B (en) | 1988-04-27 |
Family
ID=4790920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85100141A Expired CN85100141B (en) | 1985-04-01 | 1985-04-01 | Anti-stress corrosion sealing alloy |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH07116576B2 (en) |
| CN (1) | CN85100141B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109746455A (en) * | 2019-03-19 | 2019-05-14 | 湖南恒基粉末科技有限责任公司 | A kind of cupric kovar alloy and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4751942B2 (en) | 2009-06-17 | 2011-08-17 | アイシン精機株式会社 | Stator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6040503B2 (en) * | 1979-06-27 | 1985-09-11 | 住友特殊金属株式会社 | Fe-Ni-Co alloy for sealing with excellent stress corrosion cracking resistance |
-
1985
- 1985-04-01 CN CN85100141A patent/CN85100141B/en not_active Expired
-
1986
- 1986-03-31 JP JP61074126A patent/JPH07116576B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109746455A (en) * | 2019-03-19 | 2019-05-14 | 湖南恒基粉末科技有限责任公司 | A kind of cupric kovar alloy and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62202067A (en) | 1987-09-05 |
| JPH07116576B2 (en) | 1995-12-13 |
| CN85100141B (en) | 1988-04-27 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |