CN1058527C - Gypsum deoxygenating agent - Google Patents
Gypsum deoxygenating agent Download PDFInfo
- Publication number
- CN1058527C CN1058527C CN98113630A CN98113630A CN1058527C CN 1058527 C CN1058527 C CN 1058527C CN 98113630 A CN98113630 A CN 98113630A CN 98113630 A CN98113630 A CN 98113630A CN 1058527 C CN1058527 C CN 1058527C
- Authority
- CN
- China
- Prior art keywords
- gypsum
- annealing
- deoxygenating agent
- vacuum
- vacuum annealing
- 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.)
- Expired - Fee Related
Links
Landscapes
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The present invention relates to a gypsum deoxygenating agent used for vacuum annealing to prevent metal steel corrosion, which is mainly prepared from calcium sulphate, and the gypsum deoxygenating agent is used for techniques of manganese steel solder wire vacuum annealing; a vacuum annealing furnace does not need to be sealed by rubber or asbest; heat is radiated by water; vacuum pumping and nitrogen charge are not needed, a fan motor for balancing furnace temperature is not needed, oxygen can be automatically removed by high temperature in the annealing process, bad air is automatically removed, and no oxidation layer is on the surface of the solder wire after annealing, carbon is not eliminated, and the gypsum deoxygenating agent is smooth like a mirror. The present invention has the advantages of fund saving, energy saving, low cost, high quality, good quality, high output, low consumption, obvious economical and social benefit, and broad application and application prospect.
Description
The invention discloses and a kind ofly be applied to vacuum annealing and prevent metal steel corrosive gypsum deoxygenating agent.
In the drawing of metal steel, cutting process, often need heat-treat, particularly to carry out anneal; to reduce steel hardness; eliminate internal stress, increase plasticity, make processing such as its suitable drawing, cutting; in the technological process that draws gas shield metal welding wire; need will be thicker the manganese steel wire rod repeatedly stretch and make the filament welding rod, every through one-off drawing, make the wire rod surface hardening; produce stress, need just can enter down stretching process one through anneal.The annealing process of the welding wire of process gas protection at present is to carry out in the well vacuum annealing furnace; traditional technology need vacuumize; inflated with nitrogen; but because technical qualification are limit; be difficult for reaching perfect vacuum; and weak effect, the cost height easily causes the welding wire surface oxidation; decarburization; rubber seal or asbestos seal ring are taked in the stove sealing; easily aged deterioration under hot conditions produces gas leakage, sealing-ring bottom water-cooled; cause the furnace temperature imbalance easily; and adopting the thermal equilibrium fan motor, effect is not good enough again, adorns workpiece less very easily to leak gas; annealing back welding wire surface has a large amount of oxide skins; add to the difficulties to next process, not only increase the steel loss, and each road wire-drawing process broken end is increased; the percentage of A-class goods descends, and scrap rate increases.
The present invention is directed to the problem that the vacuum annealing of above-mentioned gas protection welding wire exists; exploratory development repeatedly; the test textual criticism; finally find that a kind of stability is high, anti-corrosion capability is strong, and effect is lasting; can hinder oxidation on metal surface and the gypsum deoxygenating agent that delays oxidation; thereby reach welding wire surface non-oxidation layer, not decarburization, free from corrosion purpose.
The main component of gypsum deoxygenating agent is a calcium sulfate, uses with the form of two water things and half water thing usually, and molecular formula is CaSO
42H
2O and CaSO
41/2H
2O is commonly called as the plaster stone and the plaster of Paris, proterties: white powder, plaster stone density 2.32g/cm
3, fusing point 1350-1370 ℃, plaster of Paris density 2.946g/cm
3, 1450 ℃ of fusing points have very strong water-absorbent, make peptizer and use in food-processing.
The phlogistication of gypsum mainly shows and can make the metallic surface antioxidant anticorrosive, its water absorbability is very strong, and hydrate is than indissoluble, attached to the metal steel surface, very easily form a kind of closeer tectum in the metallic surface, its role is to a metal and keep apart as far as possible, suppressed metallic corrosion effectively, thereby played the purpose of corrosion protection with causing or promote various ambient conditionss of corrosive such as oxygen, moisture.
Gypsum is done the application of oxygen scavenger in the vacuum annealing of process gas protection welding wire; specifically can adopt well vacuum stove (top seal) to carry out manganese steel welding wire production test; vacuum oven model: RJJ-120KW; 800 kilograms of stove dress welding wires; adopting weight percent content is that 94.38% gypsum deoxygenating agent is put into 1 kilogram, places 2 kilograms of gypsum deoxygenating agents at stove seal place.Under 750 ℃ of standard temperatures, anneal.After annealing finishes, welding wire surface non-oxidation layer, not decarburization, smooth and bright like a mirror.Do not vacuumize in the Total Test process, inflated with nitrogen does not need water-cooled, and the welding wire quality is all qualified.
Adopt gypsum deoxygenating agent process gas protection welding wire, vacuum annealing furnace need not rubber seal or asbestos seal, and uses water-cooled, also need not to vacuumize, inflated with nitrogen, more need not fan motor balance furnace temperature.Automatically high temperature deoxygenation in the annealing process, automatically get rid of dirty gas, after the welding wire vacuum annealing, because welding wire surface non-oxidation layer, not decarburization, smooth and bright like a mirror, utilize decorticator to divest welding wire top layer oxide skin operation together down and can cancel, last one wire-drawing process water tank drawbench oxide skin throw out reduces by 95%, and finished product welding wire surface foaming summer and autumn rate can reduce by 80%.
Adopt this oxygen scavenger, can economize on the use of funds, save energy reduces cost, and improves the quality, and meets good quality and high output, low consumed principle, and economic and social benefits are obvious, and popularizing application prospect is wide.
Claims (1)
1. one kind is applied to vacuum annealing and prevents metal steel corrosive gypsum deoxygenating agent, it is characterized in that main component is a calcium sulfate, uses with two water things and half water thing form, and molecular formula is CaSO
42H
2O and CaSO
41/2H
2O.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98113630A CN1058527C (en) | 1998-07-09 | 1998-07-09 | Gypsum deoxygenating agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98113630A CN1058527C (en) | 1998-07-09 | 1998-07-09 | Gypsum deoxygenating agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1209460A CN1209460A (en) | 1999-03-03 |
| CN1058527C true CN1058527C (en) | 2000-11-15 |
Family
ID=5223339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98113630A Expired - Fee Related CN1058527C (en) | 1998-07-09 | 1998-07-09 | Gypsum deoxygenating agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1058527C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111673899B (en) * | 2020-06-18 | 2022-01-25 | 远科秦皇岛节能环保科技开发有限公司 | Protection method for gas turbine blade tenon |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06346247A (en) * | 1993-06-03 | 1994-12-20 | Nippon Steel Corp | Separation agent for annealing for silicon steel sheet suitable for smoothing surface and reduction in core loss of steel sheet |
| JPH0835014A (en) * | 1994-07-21 | 1996-02-06 | Nippon Steel Corp | Separation agent at annealing, extremely excellent in reactivity, and its production |
-
1998
- 1998-07-09 CN CN98113630A patent/CN1058527C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06346247A (en) * | 1993-06-03 | 1994-12-20 | Nippon Steel Corp | Separation agent for annealing for silicon steel sheet suitable for smoothing surface and reduction in core loss of steel sheet |
| JPH0835014A (en) * | 1994-07-21 | 1996-02-06 | Nippon Steel Corp | Separation agent at annealing, extremely excellent in reactivity, and its production |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1209460A (en) | 1999-03-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6461798B2 (en) | Manufacturing method of high magnetic flux density general-purpose directional silicon steel | |
| CN111074140B (en) | Method for manufacturing cold-rolled low-carbon enamel steel for household appliances | |
| CN106756536B (en) | A kind of automobile-used low-alloy steel of resistance to hydrogen-type corrosion normalizing type movable tank and preparation method thereof | |
| CN108774709B (en) | Hot dip coating steel plate with excellent heat insulation reflectivity to light and heat and preparation method thereof | |
| CN108788519B (en) | Preparation process and application of high-strength stainless steel electric arc welding flux-cored wire | |
| CN1058527C (en) | Gypsum deoxygenating agent | |
| CN110055381B (en) | Nitrogen protection annealing process of light-weight tool and die steel | |
| CN105506470A (en) | High-strength high-toughness hot-dip aluminized steel plate and manufacturing method thereof | |
| CN115786812B (en) | 9Ni steel plate for large-thickness low-yield-ratio LNG storage tank and production method thereof | |
| CN114875302B (en) | Low-alloy steel and preparation method and application thereof | |
| CN108220799B (en) | Cold-rolled low-carbon enamel steel for household appliances | |
| KR100360095B1 (en) | Manufacturing method of high adhesion enameled steel sheet with excellent formability | |
| JP2007270167A (en) | Method for producing galvanized steel sheet excellent in baking hardenability | |
| CN112593053A (en) | Oriented silicon steel high-temperature annealing process with low gas consumption optimization cost | |
| CN2396356Y (en) | Vacuum annealing furnace | |
| GB2066290A (en) | Processes for producing high strength cold rolled steel sheets | |
| CN107881319A (en) | Transmit steel band production technology | |
| CN1420199A (en) | Method for preparing incomplete recrystallized copper pipe | |
| CN104264022B (en) | A kind of magnesium alloy and preparation method thereof | |
| US3653990A (en) | Method for improving steel for carbonated beverage containers | |
| CN202482390U (en) | Non-standard bell-type furnace provided with base heating device | |
| KR101294447B1 (en) | Method of manufacturing cold-rolled steel sheet for enamel with excellent formability | |
| CN103789606A (en) | Flexible uncoated tinplate base | |
| KR101294577B1 (en) | Method of manufacturing cold-rolled steel sheet for enamel with excellent dip-drawing property | |
| CN106637009A (en) | Production method for aluminum alloy plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Applicant after: Zhao Xiantao Applicant before: Wang Laohu Applicant before: Yu Yuansheng |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: WANG LAOHU; YU YUANSHENG TO: ZHAO XIANTAO |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CI01 | Correction of invention patent gazette |
Correction item: Inventor Correct: Zhao Xiantao False: Wang Laohu|Yu Yuansheng Number: 46 Page: 171 Volume: 16 |
|
| CI03 | Correction of invention patent |
Correction item: Inventor Correct: Zhao Xiantao False: Wang Laohu|Yu Yuansheng Number: 46 Page: The title page Volume: 16 |
|
| 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 |